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3863 lines
133 KiB
3863 lines
133 KiB
/* |
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* Copyright (c) 2003 Fabrice Bellard |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file |
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* simple media player based on the FFmpeg libraries |
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*/ |
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#include "config.h" |
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#include <inttypes.h> |
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#include <math.h> |
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#include <limits.h> |
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#include <signal.h> |
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#include <stdint.h> |
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#include "libavutil/avstring.h" |
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#include "libavutil/eval.h" |
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#include "libavutil/mathematics.h" |
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#include "libavutil/pixdesc.h" |
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#include "libavutil/imgutils.h" |
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#include "libavutil/dict.h" |
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#include "libavutil/parseutils.h" |
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#include "libavutil/samplefmt.h" |
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#include "libavutil/avassert.h" |
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#include "libavutil/time.h" |
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#include "libavformat/avformat.h" |
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#include "libavdevice/avdevice.h" |
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#include "libswscale/swscale.h" |
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#include "libavutil/opt.h" |
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#include "libavcodec/avfft.h" |
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#include "libswresample/swresample.h" |
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#if CONFIG_AVFILTER |
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# include "libavfilter/avfilter.h" |
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# include "libavfilter/buffersink.h" |
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# include "libavfilter/buffersrc.h" |
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#endif |
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#include <SDL.h> |
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#include <SDL_thread.h> |
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#include "cmdutils.h" |
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#include <assert.h> |
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const char program_name[] = "ffplay"; |
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const int program_birth_year = 2003; |
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#define MAX_QUEUE_SIZE (15 * 1024 * 1024) |
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#define MIN_FRAMES 25 |
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#define EXTERNAL_CLOCK_MIN_FRAMES 2 |
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#define EXTERNAL_CLOCK_MAX_FRAMES 10 |
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|
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/* Minimum SDL audio buffer size, in samples. */ |
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#define SDL_AUDIO_MIN_BUFFER_SIZE 512 |
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/* Calculate actual buffer size keeping in mind not cause too frequent audio callbacks */ |
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#define SDL_AUDIO_MAX_CALLBACKS_PER_SEC 30 |
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/* Step size for volume control */ |
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#define SDL_VOLUME_STEP (SDL_MIX_MAXVOLUME / 50) |
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/* no AV sync correction is done if below the minimum AV sync threshold */ |
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#define AV_SYNC_THRESHOLD_MIN 0.04 |
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/* AV sync correction is done if above the maximum AV sync threshold */ |
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#define AV_SYNC_THRESHOLD_MAX 0.1 |
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/* If a frame duration is longer than this, it will not be duplicated to compensate AV sync */ |
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#define AV_SYNC_FRAMEDUP_THRESHOLD 0.1 |
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/* no AV correction is done if too big error */ |
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#define AV_NOSYNC_THRESHOLD 10.0 |
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/* maximum audio speed change to get correct sync */ |
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#define SAMPLE_CORRECTION_PERCENT_MAX 10 |
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/* external clock speed adjustment constants for realtime sources based on buffer fullness */ |
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#define EXTERNAL_CLOCK_SPEED_MIN 0.900 |
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#define EXTERNAL_CLOCK_SPEED_MAX 1.010 |
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#define EXTERNAL_CLOCK_SPEED_STEP 0.001 |
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/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */ |
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#define AUDIO_DIFF_AVG_NB 20 |
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/* polls for possible required screen refresh at least this often, should be less than 1/fps */ |
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#define REFRESH_RATE 0.01 |
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/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */ |
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/* TODO: We assume that a decoded and resampled frame fits into this buffer */ |
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#define SAMPLE_ARRAY_SIZE (8 * 65536) |
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#define CURSOR_HIDE_DELAY 1000000 |
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static unsigned sws_flags = SWS_BICUBIC; |
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typedef struct MyAVPacketList { |
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AVPacket pkt; |
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struct MyAVPacketList *next; |
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int serial; |
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} MyAVPacketList; |
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typedef struct PacketQueue { |
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MyAVPacketList *first_pkt, *last_pkt; |
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int nb_packets; |
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int size; |
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int64_t duration; |
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int abort_request; |
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int serial; |
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SDL_mutex *mutex; |
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SDL_cond *cond; |
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} PacketQueue; |
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#define VIDEO_PICTURE_QUEUE_SIZE 3 |
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#define SUBPICTURE_QUEUE_SIZE 16 |
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#define SAMPLE_QUEUE_SIZE 9 |
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#define FRAME_QUEUE_SIZE FFMAX(SAMPLE_QUEUE_SIZE, FFMAX(VIDEO_PICTURE_QUEUE_SIZE, SUBPICTURE_QUEUE_SIZE)) |
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typedef struct AudioParams { |
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int freq; |
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int channels; |
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int64_t channel_layout; |
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enum AVSampleFormat fmt; |
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int frame_size; |
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int bytes_per_sec; |
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} AudioParams; |
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typedef struct Clock { |
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double pts; /* clock base */ |
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double pts_drift; /* clock base minus time at which we updated the clock */ |
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double last_updated; |
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double speed; |
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int serial; /* clock is based on a packet with this serial */ |
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int paused; |
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int *queue_serial; /* pointer to the current packet queue serial, used for obsolete clock detection */ |
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} Clock; |
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/* Common struct for handling all types of decoded data and allocated render buffers. */ |
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typedef struct Frame { |
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AVFrame *frame; |
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AVSubtitle sub; |
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AVSubtitleRect **subrects; /* rescaled subtitle rectangles in yuva */ |
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int serial; |
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double pts; /* presentation timestamp for the frame */ |
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double duration; /* estimated duration of the frame */ |
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int64_t pos; /* byte position of the frame in the input file */ |
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SDL_Overlay *bmp; |
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int allocated; |
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int reallocate; |
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int width; |
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int height; |
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AVRational sar; |
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} Frame; |
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typedef struct FrameQueue { |
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Frame queue[FRAME_QUEUE_SIZE]; |
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int rindex; |
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int windex; |
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int size; |
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int max_size; |
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int keep_last; |
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int rindex_shown; |
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SDL_mutex *mutex; |
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SDL_cond *cond; |
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PacketQueue *pktq; |
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} FrameQueue; |
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enum { |
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AV_SYNC_AUDIO_MASTER, /* default choice */ |
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AV_SYNC_VIDEO_MASTER, |
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AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */ |
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}; |
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typedef struct Decoder { |
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AVPacket pkt; |
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AVPacket pkt_temp; |
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PacketQueue *queue; |
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AVCodecContext *avctx; |
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int pkt_serial; |
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int finished; |
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int packet_pending; |
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SDL_cond *empty_queue_cond; |
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int64_t start_pts; |
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AVRational start_pts_tb; |
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int64_t next_pts; |
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AVRational next_pts_tb; |
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SDL_Thread *decoder_tid; |
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} Decoder; |
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typedef struct VideoState { |
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SDL_Thread *read_tid; |
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AVInputFormat *iformat; |
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int abort_request; |
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int force_refresh; |
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int paused; |
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int last_paused; |
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int queue_attachments_req; |
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int seek_req; |
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int seek_flags; |
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int64_t seek_pos; |
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int64_t seek_rel; |
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int read_pause_return; |
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AVFormatContext *ic; |
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int realtime; |
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Clock audclk; |
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Clock vidclk; |
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Clock extclk; |
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FrameQueue pictq; |
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FrameQueue subpq; |
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FrameQueue sampq; |
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Decoder auddec; |
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Decoder viddec; |
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Decoder subdec; |
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int viddec_width; |
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int viddec_height; |
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int audio_stream; |
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int av_sync_type; |
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double audio_clock; |
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int audio_clock_serial; |
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double audio_diff_cum; /* used for AV difference average computation */ |
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double audio_diff_avg_coef; |
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double audio_diff_threshold; |
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int audio_diff_avg_count; |
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AVStream *audio_st; |
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PacketQueue audioq; |
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int audio_hw_buf_size; |
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uint8_t *audio_buf; |
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uint8_t *audio_buf1; |
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unsigned int audio_buf_size; /* in bytes */ |
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unsigned int audio_buf1_size; |
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int audio_buf_index; /* in bytes */ |
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int audio_write_buf_size; |
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int audio_volume; |
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int muted; |
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struct AudioParams audio_src; |
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#if CONFIG_AVFILTER |
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struct AudioParams audio_filter_src; |
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#endif |
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struct AudioParams audio_tgt; |
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struct SwrContext *swr_ctx; |
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int frame_drops_early; |
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int frame_drops_late; |
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enum ShowMode { |
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SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB |
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} show_mode; |
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int16_t sample_array[SAMPLE_ARRAY_SIZE]; |
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int sample_array_index; |
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int last_i_start; |
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RDFTContext *rdft; |
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int rdft_bits; |
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FFTSample *rdft_data; |
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int xpos; |
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double last_vis_time; |
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int subtitle_stream; |
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AVStream *subtitle_st; |
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PacketQueue subtitleq; |
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double frame_timer; |
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double frame_last_returned_time; |
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double frame_last_filter_delay; |
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int video_stream; |
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AVStream *video_st; |
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PacketQueue videoq; |
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double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity |
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#if !CONFIG_AVFILTER |
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struct SwsContext *img_convert_ctx; |
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#endif |
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struct SwsContext *sub_convert_ctx; |
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SDL_Rect last_display_rect; |
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int eof; |
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char *filename; |
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int width, height, xleft, ytop; |
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int step; |
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#if CONFIG_AVFILTER |
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int vfilter_idx; |
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AVFilterContext *in_video_filter; // the first filter in the video chain |
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AVFilterContext *out_video_filter; // the last filter in the video chain |
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AVFilterContext *in_audio_filter; // the first filter in the audio chain |
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AVFilterContext *out_audio_filter; // the last filter in the audio chain |
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AVFilterGraph *agraph; // audio filter graph |
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#endif |
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int last_video_stream, last_audio_stream, last_subtitle_stream; |
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SDL_cond *continue_read_thread; |
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} VideoState; |
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/* options specified by the user */ |
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static AVInputFormat *file_iformat; |
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static const char *input_filename; |
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static const char *window_title; |
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static int fs_screen_width; |
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static int fs_screen_height; |
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static int default_width = 640; |
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static int default_height = 480; |
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static int screen_width = 0; |
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static int screen_height = 0; |
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static int audio_disable; |
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static int video_disable; |
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static int subtitle_disable; |
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static const char* wanted_stream_spec[AVMEDIA_TYPE_NB] = {0}; |
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static int seek_by_bytes = -1; |
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static int display_disable; |
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static int show_status = 1; |
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static int av_sync_type = AV_SYNC_AUDIO_MASTER; |
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static int64_t start_time = AV_NOPTS_VALUE; |
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static int64_t duration = AV_NOPTS_VALUE; |
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static int fast = 0; |
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static int genpts = 0; |
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static int lowres = 0; |
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static int decoder_reorder_pts = -1; |
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static int autoexit; |
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static int exit_on_keydown; |
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static int exit_on_mousedown; |
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static int loop = 1; |
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static int framedrop = -1; |
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static int infinite_buffer = -1; |
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static enum ShowMode show_mode = SHOW_MODE_NONE; |
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static const char *audio_codec_name; |
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static const char *subtitle_codec_name; |
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static const char *video_codec_name; |
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double rdftspeed = 0.02; |
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static int64_t cursor_last_shown; |
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static int cursor_hidden = 0; |
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#if CONFIG_AVFILTER |
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static const char **vfilters_list = NULL; |
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static int nb_vfilters = 0; |
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static char *afilters = NULL; |
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#endif |
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static int autorotate = 1; |
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/* current context */ |
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static int is_full_screen; |
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static int64_t audio_callback_time; |
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static AVPacket flush_pkt; |
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#define FF_ALLOC_EVENT (SDL_USEREVENT) |
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#define FF_QUIT_EVENT (SDL_USEREVENT + 2) |
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static SDL_Surface *screen; |
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#if CONFIG_AVFILTER |
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static int opt_add_vfilter(void *optctx, const char *opt, const char *arg) |
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{ |
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GROW_ARRAY(vfilters_list, nb_vfilters); |
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vfilters_list[nb_vfilters - 1] = arg; |
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return 0; |
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} |
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#endif |
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static inline |
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int cmp_audio_fmts(enum AVSampleFormat fmt1, int64_t channel_count1, |
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enum AVSampleFormat fmt2, int64_t channel_count2) |
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{ |
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/* If channel count == 1, planar and non-planar formats are the same */ |
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if (channel_count1 == 1 && channel_count2 == 1) |
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return av_get_packed_sample_fmt(fmt1) != av_get_packed_sample_fmt(fmt2); |
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else |
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return channel_count1 != channel_count2 || fmt1 != fmt2; |
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} |
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static inline |
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int64_t get_valid_channel_layout(int64_t channel_layout, int channels) |
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{ |
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if (channel_layout && av_get_channel_layout_nb_channels(channel_layout) == channels) |
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return channel_layout; |
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else |
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return 0; |
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} |
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static void free_picture(Frame *vp); |
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static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt) |
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{ |
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MyAVPacketList *pkt1; |
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if (q->abort_request) |
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return -1; |
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pkt1 = av_malloc(sizeof(MyAVPacketList)); |
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if (!pkt1) |
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return -1; |
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pkt1->pkt = *pkt; |
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pkt1->next = NULL; |
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if (pkt == &flush_pkt) |
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q->serial++; |
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pkt1->serial = q->serial; |
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if (!q->last_pkt) |
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q->first_pkt = pkt1; |
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else |
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q->last_pkt->next = pkt1; |
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q->last_pkt = pkt1; |
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q->nb_packets++; |
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q->size += pkt1->pkt.size + sizeof(*pkt1); |
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q->duration += pkt1->pkt.duration; |
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/* XXX: should duplicate packet data in DV case */ |
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SDL_CondSignal(q->cond); |
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return 0; |
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} |
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static int packet_queue_put(PacketQueue *q, AVPacket *pkt) |
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{ |
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int ret; |
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SDL_LockMutex(q->mutex); |
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ret = packet_queue_put_private(q, pkt); |
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SDL_UnlockMutex(q->mutex); |
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if (pkt != &flush_pkt && ret < 0) |
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av_packet_unref(pkt); |
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return ret; |
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} |
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static int packet_queue_put_nullpacket(PacketQueue *q, int stream_index) |
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{ |
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AVPacket pkt1, *pkt = &pkt1; |
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av_init_packet(pkt); |
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pkt->data = NULL; |
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pkt->size = 0; |
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pkt->stream_index = stream_index; |
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return packet_queue_put(q, pkt); |
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} |
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/* packet queue handling */ |
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static int packet_queue_init(PacketQueue *q) |
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{ |
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memset(q, 0, sizeof(PacketQueue)); |
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q->mutex = SDL_CreateMutex(); |
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if (!q->mutex) { |
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av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); |
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return AVERROR(ENOMEM); |
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} |
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q->cond = SDL_CreateCond(); |
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if (!q->cond) { |
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av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); |
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return AVERROR(ENOMEM); |
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} |
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q->abort_request = 1; |
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return 0; |
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} |
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static void packet_queue_flush(PacketQueue *q) |
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{ |
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MyAVPacketList *pkt, *pkt1; |
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SDL_LockMutex(q->mutex); |
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for (pkt = q->first_pkt; pkt; pkt = pkt1) { |
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pkt1 = pkt->next; |
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av_packet_unref(&pkt->pkt); |
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av_freep(&pkt); |
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} |
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q->last_pkt = NULL; |
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q->first_pkt = NULL; |
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q->nb_packets = 0; |
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q->size = 0; |
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q->duration = 0; |
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SDL_UnlockMutex(q->mutex); |
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} |
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static void packet_queue_destroy(PacketQueue *q) |
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{ |
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packet_queue_flush(q); |
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SDL_DestroyMutex(q->mutex); |
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SDL_DestroyCond(q->cond); |
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} |
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static void packet_queue_abort(PacketQueue *q) |
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{ |
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SDL_LockMutex(q->mutex); |
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q->abort_request = 1; |
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SDL_CondSignal(q->cond); |
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SDL_UnlockMutex(q->mutex); |
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} |
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static void packet_queue_start(PacketQueue *q) |
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{ |
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SDL_LockMutex(q->mutex); |
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q->abort_request = 0; |
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packet_queue_put_private(q, &flush_pkt); |
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SDL_UnlockMutex(q->mutex); |
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} |
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/* return < 0 if aborted, 0 if no packet and > 0 if packet. */ |
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static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial) |
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{ |
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MyAVPacketList *pkt1; |
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int ret; |
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SDL_LockMutex(q->mutex); |
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for (;;) { |
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if (q->abort_request) { |
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ret = -1; |
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break; |
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} |
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pkt1 = q->first_pkt; |
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if (pkt1) { |
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q->first_pkt = pkt1->next; |
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if (!q->first_pkt) |
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q->last_pkt = NULL; |
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q->nb_packets--; |
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q->size -= pkt1->pkt.size + sizeof(*pkt1); |
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q->duration -= pkt1->pkt.duration; |
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*pkt = pkt1->pkt; |
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if (serial) |
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*serial = pkt1->serial; |
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av_free(pkt1); |
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ret = 1; |
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break; |
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} else if (!block) { |
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ret = 0; |
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break; |
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} else { |
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SDL_CondWait(q->cond, q->mutex); |
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} |
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} |
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SDL_UnlockMutex(q->mutex); |
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return ret; |
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} |
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static void decoder_init(Decoder *d, AVCodecContext *avctx, PacketQueue *queue, SDL_cond *empty_queue_cond) { |
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memset(d, 0, sizeof(Decoder)); |
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d->avctx = avctx; |
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d->queue = queue; |
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d->empty_queue_cond = empty_queue_cond; |
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d->start_pts = AV_NOPTS_VALUE; |
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} |
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static int decoder_decode_frame(Decoder *d, AVFrame *frame, AVSubtitle *sub) { |
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int got_frame = 0; |
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|
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do { |
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int ret = -1; |
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|
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if (d->queue->abort_request) |
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return -1; |
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|
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if (!d->packet_pending || d->queue->serial != d->pkt_serial) { |
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AVPacket pkt; |
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do { |
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if (d->queue->nb_packets == 0) |
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SDL_CondSignal(d->empty_queue_cond); |
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if (packet_queue_get(d->queue, &pkt, 1, &d->pkt_serial) < 0) |
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return -1; |
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if (pkt.data == flush_pkt.data) { |
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avcodec_flush_buffers(d->avctx); |
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d->finished = 0; |
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d->next_pts = d->start_pts; |
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d->next_pts_tb = d->start_pts_tb; |
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} |
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} while (pkt.data == flush_pkt.data || d->queue->serial != d->pkt_serial); |
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av_packet_unref(&d->pkt); |
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d->pkt_temp = d->pkt = pkt; |
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d->packet_pending = 1; |
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} |
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|
|
switch (d->avctx->codec_type) { |
|
case AVMEDIA_TYPE_VIDEO: |
|
ret = avcodec_decode_video2(d->avctx, frame, &got_frame, &d->pkt_temp); |
|
if (got_frame) { |
|
if (decoder_reorder_pts == -1) { |
|
frame->pts = av_frame_get_best_effort_timestamp(frame); |
|
} else if (decoder_reorder_pts) { |
|
frame->pts = frame->pkt_pts; |
|
} else { |
|
frame->pts = frame->pkt_dts; |
|
} |
|
} |
|
break; |
|
case AVMEDIA_TYPE_AUDIO: |
|
ret = avcodec_decode_audio4(d->avctx, frame, &got_frame, &d->pkt_temp); |
|
if (got_frame) { |
|
AVRational tb = (AVRational){1, frame->sample_rate}; |
|
if (frame->pts != AV_NOPTS_VALUE) |
|
frame->pts = av_rescale_q(frame->pts, d->avctx->time_base, tb); |
|
else if (frame->pkt_pts != AV_NOPTS_VALUE) |
|
frame->pts = av_rescale_q(frame->pkt_pts, av_codec_get_pkt_timebase(d->avctx), tb); |
|
else if (d->next_pts != AV_NOPTS_VALUE) |
|
frame->pts = av_rescale_q(d->next_pts, d->next_pts_tb, tb); |
|
if (frame->pts != AV_NOPTS_VALUE) { |
|
d->next_pts = frame->pts + frame->nb_samples; |
|
d->next_pts_tb = tb; |
|
} |
|
} |
|
break; |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
ret = avcodec_decode_subtitle2(d->avctx, sub, &got_frame, &d->pkt_temp); |
|
break; |
|
} |
|
|
|
if (ret < 0) { |
|
d->packet_pending = 0; |
|
} else { |
|
d->pkt_temp.dts = |
|
d->pkt_temp.pts = AV_NOPTS_VALUE; |
|
if (d->pkt_temp.data) { |
|
if (d->avctx->codec_type != AVMEDIA_TYPE_AUDIO) |
|
ret = d->pkt_temp.size; |
|
d->pkt_temp.data += ret; |
|
d->pkt_temp.size -= ret; |
|
if (d->pkt_temp.size <= 0) |
|
d->packet_pending = 0; |
|
} else { |
|
if (!got_frame) { |
|
d->packet_pending = 0; |
|
d->finished = d->pkt_serial; |
|
} |
|
} |
|
} |
|
} while (!got_frame && !d->finished); |
|
|
|
return got_frame; |
|
} |
|
|
|
static void decoder_destroy(Decoder *d) { |
|
av_packet_unref(&d->pkt); |
|
avcodec_free_context(&d->avctx); |
|
} |
|
|
|
static void frame_queue_unref_item(Frame *vp) |
|
{ |
|
int i; |
|
for (i = 0; i < vp->sub.num_rects; i++) { |
|
av_freep(&vp->subrects[i]->data[0]); |
|
av_freep(&vp->subrects[i]); |
|
} |
|
av_freep(&vp->subrects); |
|
av_frame_unref(vp->frame); |
|
avsubtitle_free(&vp->sub); |
|
} |
|
|
|
static int frame_queue_init(FrameQueue *f, PacketQueue *pktq, int max_size, int keep_last) |
|
{ |
|
int i; |
|
memset(f, 0, sizeof(FrameQueue)); |
|
if (!(f->mutex = SDL_CreateMutex())) { |
|
av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); |
|
return AVERROR(ENOMEM); |
|
} |
|
if (!(f->cond = SDL_CreateCond())) { |
|
av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); |
|
return AVERROR(ENOMEM); |
|
} |
|
f->pktq = pktq; |
|
f->max_size = FFMIN(max_size, FRAME_QUEUE_SIZE); |
|
f->keep_last = !!keep_last; |
|
for (i = 0; i < f->max_size; i++) |
|
if (!(f->queue[i].frame = av_frame_alloc())) |
|
return AVERROR(ENOMEM); |
|
return 0; |
|
} |
|
|
|
static void frame_queue_destory(FrameQueue *f) |
|
{ |
|
int i; |
|
for (i = 0; i < f->max_size; i++) { |
|
Frame *vp = &f->queue[i]; |
|
frame_queue_unref_item(vp); |
|
av_frame_free(&vp->frame); |
|
free_picture(vp); |
|
} |
|
SDL_DestroyMutex(f->mutex); |
|
SDL_DestroyCond(f->cond); |
|
} |
|
|
|
static void frame_queue_signal(FrameQueue *f) |
|
{ |
|
SDL_LockMutex(f->mutex); |
|
SDL_CondSignal(f->cond); |
|
SDL_UnlockMutex(f->mutex); |
|
} |
|
|
|
static Frame *frame_queue_peek(FrameQueue *f) |
|
{ |
|
return &f->queue[(f->rindex + f->rindex_shown) % f->max_size]; |
|
} |
|
|
|
static Frame *frame_queue_peek_next(FrameQueue *f) |
|
{ |
|
return &f->queue[(f->rindex + f->rindex_shown + 1) % f->max_size]; |
|
} |
|
|
|
static Frame *frame_queue_peek_last(FrameQueue *f) |
|
{ |
|
return &f->queue[f->rindex]; |
|
} |
|
|
|
static Frame *frame_queue_peek_writable(FrameQueue *f) |
|
{ |
|
/* wait until we have space to put a new frame */ |
|
SDL_LockMutex(f->mutex); |
|
while (f->size >= f->max_size && |
|
!f->pktq->abort_request) { |
|
SDL_CondWait(f->cond, f->mutex); |
|
} |
|
SDL_UnlockMutex(f->mutex); |
|
|
|
if (f->pktq->abort_request) |
|
return NULL; |
|
|
|
return &f->queue[f->windex]; |
|
} |
|
|
|
static Frame *frame_queue_peek_readable(FrameQueue *f) |
|
{ |
|
/* wait until we have a readable a new frame */ |
|
SDL_LockMutex(f->mutex); |
|
while (f->size - f->rindex_shown <= 0 && |
|
!f->pktq->abort_request) { |
|
SDL_CondWait(f->cond, f->mutex); |
|
} |
|
SDL_UnlockMutex(f->mutex); |
|
|
|
if (f->pktq->abort_request) |
|
return NULL; |
|
|
|
return &f->queue[(f->rindex + f->rindex_shown) % f->max_size]; |
|
} |
|
|
|
static void frame_queue_push(FrameQueue *f) |
|
{ |
|
if (++f->windex == f->max_size) |
|
f->windex = 0; |
|
SDL_LockMutex(f->mutex); |
|
f->size++; |
|
SDL_CondSignal(f->cond); |
|
SDL_UnlockMutex(f->mutex); |
|
} |
|
|
|
static void frame_queue_next(FrameQueue *f) |
|
{ |
|
if (f->keep_last && !f->rindex_shown) { |
|
f->rindex_shown = 1; |
|
return; |
|
} |
|
frame_queue_unref_item(&f->queue[f->rindex]); |
|
if (++f->rindex == f->max_size) |
|
f->rindex = 0; |
|
SDL_LockMutex(f->mutex); |
|
f->size--; |
|
SDL_CondSignal(f->cond); |
|
SDL_UnlockMutex(f->mutex); |
|
} |
|
|
|
/* return the number of undisplayed frames in the queue */ |
|
static int frame_queue_nb_remaining(FrameQueue *f) |
|
{ |
|
return f->size - f->rindex_shown; |
|
} |
|
|
|
/* return last shown position */ |
|
static int64_t frame_queue_last_pos(FrameQueue *f) |
|
{ |
|
Frame *fp = &f->queue[f->rindex]; |
|
if (f->rindex_shown && fp->serial == f->pktq->serial) |
|
return fp->pos; |
|
else |
|
return -1; |
|
} |
|
|
|
static void decoder_abort(Decoder *d, FrameQueue *fq) |
|
{ |
|
packet_queue_abort(d->queue); |
|
frame_queue_signal(fq); |
|
SDL_WaitThread(d->decoder_tid, NULL); |
|
d->decoder_tid = NULL; |
|
packet_queue_flush(d->queue); |
|
} |
|
|
|
static inline void fill_rectangle(SDL_Surface *screen, |
|
int x, int y, int w, int h, int color, int update) |
|
{ |
|
SDL_Rect rect; |
|
rect.x = x; |
|
rect.y = y; |
|
rect.w = w; |
|
rect.h = h; |
|
SDL_FillRect(screen, &rect, color); |
|
if (update && w > 0 && h > 0) |
|
SDL_UpdateRect(screen, x, y, w, h); |
|
} |
|
|
|
/* draw only the border of a rectangle */ |
|
static void fill_border(int xleft, int ytop, int width, int height, int x, int y, int w, int h, int color, int update) |
|
{ |
|
int w1, w2, h1, h2; |
|
|
|
/* fill the background */ |
|
w1 = x; |
|
if (w1 < 0) |
|
w1 = 0; |
|
w2 = width - (x + w); |
|
if (w2 < 0) |
|
w2 = 0; |
|
h1 = y; |
|
if (h1 < 0) |
|
h1 = 0; |
|
h2 = height - (y + h); |
|
if (h2 < 0) |
|
h2 = 0; |
|
fill_rectangle(screen, |
|
xleft, ytop, |
|
w1, height, |
|
color, update); |
|
fill_rectangle(screen, |
|
xleft + width - w2, ytop, |
|
w2, height, |
|
color, update); |
|
fill_rectangle(screen, |
|
xleft + w1, ytop, |
|
width - w1 - w2, h1, |
|
color, update); |
|
fill_rectangle(screen, |
|
xleft + w1, ytop + height - h2, |
|
width - w1 - w2, h2, |
|
color, update); |
|
} |
|
|
|
#define ALPHA_BLEND(a, oldp, newp, s)\ |
|
((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s)) |
|
|
|
|
|
|
|
#define BPP 1 |
|
|
|
static void blend_subrect(uint8_t **data, int *linesize, const AVSubtitleRect *rect, int imgw, int imgh) |
|
{ |
|
int x, y, Y, U, V, A; |
|
uint8_t *lum, *cb, *cr; |
|
int dstx, dsty, dstw, dsth; |
|
const AVSubtitleRect *src = rect; |
|
|
|
dstw = av_clip(rect->w, 0, imgw); |
|
dsth = av_clip(rect->h, 0, imgh); |
|
dstx = av_clip(rect->x, 0, imgw - dstw); |
|
dsty = av_clip(rect->y, 0, imgh - dsth); |
|
lum = data[0] + dstx + dsty * linesize[0]; |
|
cb = data[1] + dstx/2 + (dsty >> 1) * linesize[1]; |
|
cr = data[2] + dstx/2 + (dsty >> 1) * linesize[2]; |
|
|
|
for (y = 0; y<dsth; y++) { |
|
for (x = 0; x<dstw; x++) { |
|
Y = src->data[0][x + y*src->linesize[0]]; |
|
A = src->data[3][x + y*src->linesize[3]]; |
|
lum[0] = ALPHA_BLEND(A, lum[0], Y, 0); |
|
lum++; |
|
} |
|
lum += linesize[0] - dstw; |
|
} |
|
|
|
for (y = 0; y<dsth/2; y++) { |
|
for (x = 0; x<dstw/2; x++) { |
|
U = src->data[1][x + y*src->linesize[1]]; |
|
V = src->data[2][x + y*src->linesize[2]]; |
|
A = src->data[3][2*x + 2*y *src->linesize[3]] |
|
+ src->data[3][2*x + 1 + 2*y *src->linesize[3]] |
|
+ src->data[3][2*x + 1 + (2*y+1)*src->linesize[3]] |
|
+ src->data[3][2*x + (2*y+1)*src->linesize[3]]; |
|
cb[0] = ALPHA_BLEND(A>>2, cb[0], U, 0); |
|
cr[0] = ALPHA_BLEND(A>>2, cr[0], V, 0); |
|
cb++; |
|
cr++; |
|
} |
|
cb += linesize[1] - dstw/2; |
|
cr += linesize[2] - dstw/2; |
|
} |
|
} |
|
|
|
static void free_picture(Frame *vp) |
|
{ |
|
if (vp->bmp) { |
|
SDL_FreeYUVOverlay(vp->bmp); |
|
vp->bmp = NULL; |
|
} |
|
} |
|
|
|
static void calculate_display_rect(SDL_Rect *rect, |
|
int scr_xleft, int scr_ytop, int scr_width, int scr_height, |
|
int pic_width, int pic_height, AVRational pic_sar) |
|
{ |
|
float aspect_ratio; |
|
int width, height, x, y; |
|
|
|
if (pic_sar.num == 0) |
|
aspect_ratio = 0; |
|
else |
|
aspect_ratio = av_q2d(pic_sar); |
|
|
|
if (aspect_ratio <= 0.0) |
|
aspect_ratio = 1.0; |
|
aspect_ratio *= (float)pic_width / (float)pic_height; |
|
|
|
/* XXX: we suppose the screen has a 1.0 pixel ratio */ |
|
height = scr_height; |
|
width = lrint(height * aspect_ratio) & ~1; |
|
if (width > scr_width) { |
|
width = scr_width; |
|
height = lrint(width / aspect_ratio) & ~1; |
|
} |
|
x = (scr_width - width) / 2; |
|
y = (scr_height - height) / 2; |
|
rect->x = scr_xleft + x; |
|
rect->y = scr_ytop + y; |
|
rect->w = FFMAX(width, 1); |
|
rect->h = FFMAX(height, 1); |
|
} |
|
|
|
static void video_image_display(VideoState *is) |
|
{ |
|
Frame *vp; |
|
Frame *sp; |
|
SDL_Rect rect; |
|
int i; |
|
|
|
vp = frame_queue_peek_last(&is->pictq); |
|
if (vp->bmp) { |
|
if (is->subtitle_st) { |
|
if (frame_queue_nb_remaining(&is->subpq) > 0) { |
|
sp = frame_queue_peek(&is->subpq); |
|
|
|
if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) { |
|
uint8_t *data[4]; |
|
int linesize[4]; |
|
|
|
SDL_LockYUVOverlay (vp->bmp); |
|
|
|
data[0] = vp->bmp->pixels[0]; |
|
data[1] = vp->bmp->pixels[2]; |
|
data[2] = vp->bmp->pixels[1]; |
|
|
|
linesize[0] = vp->bmp->pitches[0]; |
|
linesize[1] = vp->bmp->pitches[2]; |
|
linesize[2] = vp->bmp->pitches[1]; |
|
|
|
for (i = 0; i < sp->sub.num_rects; i++) |
|
blend_subrect(data, linesize, sp->subrects[i], |
|
vp->bmp->w, vp->bmp->h); |
|
|
|
SDL_UnlockYUVOverlay (vp->bmp); |
|
} |
|
} |
|
} |
|
|
|
calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp->width, vp->height, vp->sar); |
|
|
|
SDL_DisplayYUVOverlay(vp->bmp, &rect); |
|
|
|
if (rect.x != is->last_display_rect.x || rect.y != is->last_display_rect.y || rect.w != is->last_display_rect.w || rect.h != is->last_display_rect.h || is->force_refresh) { |
|
int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); |
|
fill_border(is->xleft, is->ytop, is->width, is->height, rect.x, rect.y, rect.w, rect.h, bgcolor, 1); |
|
is->last_display_rect = rect; |
|
} |
|
} |
|
} |
|
|
|
static inline int compute_mod(int a, int b) |
|
{ |
|
return a < 0 ? a%b + b : a%b; |
|
} |
|
|
|
static void video_audio_display(VideoState *s) |
|
{ |
|
int i, i_start, x, y1, y, ys, delay, n, nb_display_channels; |
|
int ch, channels, h, h2, bgcolor, fgcolor; |
|
int64_t time_diff; |
|
int rdft_bits, nb_freq; |
|
|
|
for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++) |
|
; |
|
nb_freq = 1 << (rdft_bits - 1); |
|
|
|
/* compute display index : center on currently output samples */ |
|
channels = s->audio_tgt.channels; |
|
nb_display_channels = channels; |
|
if (!s->paused) { |
|
int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq); |
|
n = 2 * channels; |
|
delay = s->audio_write_buf_size; |
|
delay /= n; |
|
|
|
/* to be more precise, we take into account the time spent since |
|
the last buffer computation */ |
|
if (audio_callback_time) { |
|
time_diff = av_gettime_relative() - audio_callback_time; |
|
delay -= (time_diff * s->audio_tgt.freq) / 1000000; |
|
} |
|
|
|
delay += 2 * data_used; |
|
if (delay < data_used) |
|
delay = data_used; |
|
|
|
i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE); |
|
if (s->show_mode == SHOW_MODE_WAVES) { |
|
h = INT_MIN; |
|
for (i = 0; i < 1000; i += channels) { |
|
int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE; |
|
int a = s->sample_array[idx]; |
|
int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE]; |
|
int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE]; |
|
int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE]; |
|
int score = a - d; |
|
if (h < score && (b ^ c) < 0) { |
|
h = score; |
|
i_start = idx; |
|
} |
|
} |
|
} |
|
|
|
s->last_i_start = i_start; |
|
} else { |
|
i_start = s->last_i_start; |
|
} |
|
|
|
bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); |
|
if (s->show_mode == SHOW_MODE_WAVES) { |
|
fill_rectangle(screen, |
|
s->xleft, s->ytop, s->width, s->height, |
|
bgcolor, 0); |
|
|
|
fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff); |
|
|
|
/* total height for one channel */ |
|
h = s->height / nb_display_channels; |
|
/* graph height / 2 */ |
|
h2 = (h * 9) / 20; |
|
for (ch = 0; ch < nb_display_channels; ch++) { |
|
i = i_start + ch; |
|
y1 = s->ytop + ch * h + (h / 2); /* position of center line */ |
|
for (x = 0; x < s->width; x++) { |
|
y = (s->sample_array[i] * h2) >> 15; |
|
if (y < 0) { |
|
y = -y; |
|
ys = y1 - y; |
|
} else { |
|
ys = y1; |
|
} |
|
fill_rectangle(screen, |
|
s->xleft + x, ys, 1, y, |
|
fgcolor, 0); |
|
i += channels; |
|
if (i >= SAMPLE_ARRAY_SIZE) |
|
i -= SAMPLE_ARRAY_SIZE; |
|
} |
|
} |
|
|
|
fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff); |
|
|
|
for (ch = 1; ch < nb_display_channels; ch++) { |
|
y = s->ytop + ch * h; |
|
fill_rectangle(screen, |
|
s->xleft, y, s->width, 1, |
|
fgcolor, 0); |
|
} |
|
SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height); |
|
} else { |
|
nb_display_channels= FFMIN(nb_display_channels, 2); |
|
if (rdft_bits != s->rdft_bits) { |
|
av_rdft_end(s->rdft); |
|
av_free(s->rdft_data); |
|
s->rdft = av_rdft_init(rdft_bits, DFT_R2C); |
|
s->rdft_bits = rdft_bits; |
|
s->rdft_data = av_malloc_array(nb_freq, 4 *sizeof(*s->rdft_data)); |
|
} |
|
if (!s->rdft || !s->rdft_data){ |
|
av_log(NULL, AV_LOG_ERROR, "Failed to allocate buffers for RDFT, switching to waves display\n"); |
|
s->show_mode = SHOW_MODE_WAVES; |
|
} else { |
|
FFTSample *data[2]; |
|
for (ch = 0; ch < nb_display_channels; ch++) { |
|
data[ch] = s->rdft_data + 2 * nb_freq * ch; |
|
i = i_start + ch; |
|
for (x = 0; x < 2 * nb_freq; x++) { |
|
double w = (x-nb_freq) * (1.0 / nb_freq); |
|
data[ch][x] = s->sample_array[i] * (1.0 - w * w); |
|
i += channels; |
|
if (i >= SAMPLE_ARRAY_SIZE) |
|
i -= SAMPLE_ARRAY_SIZE; |
|
} |
|
av_rdft_calc(s->rdft, data[ch]); |
|
} |
|
/* Least efficient way to do this, we should of course |
|
* directly access it but it is more than fast enough. */ |
|
for (y = 0; y < s->height; y++) { |
|
double w = 1 / sqrt(nb_freq); |
|
int a = sqrt(w * hypot(data[0][2 * y + 0], data[0][2 * y + 1])); |
|
int b = (nb_display_channels == 2 ) ? sqrt(w * hypot(data[1][2 * y + 0], data[1][2 * y + 1])) |
|
: a; |
|
a = FFMIN(a, 255); |
|
b = FFMIN(b, 255); |
|
fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2); |
|
|
|
fill_rectangle(screen, |
|
s->xpos, s->height-y, 1, 1, |
|
fgcolor, 0); |
|
} |
|
} |
|
SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height); |
|
if (!s->paused) |
|
s->xpos++; |
|
if (s->xpos >= s->width) |
|
s->xpos= s->xleft; |
|
} |
|
} |
|
|
|
static void stream_component_close(VideoState *is, int stream_index) |
|
{ |
|
AVFormatContext *ic = is->ic; |
|
AVCodecParameters *codecpar; |
|
|
|
if (stream_index < 0 || stream_index >= ic->nb_streams) |
|
return; |
|
codecpar = ic->streams[stream_index]->codecpar; |
|
|
|
switch (codecpar->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
decoder_abort(&is->auddec, &is->sampq); |
|
SDL_CloseAudio(); |
|
decoder_destroy(&is->auddec); |
|
swr_free(&is->swr_ctx); |
|
av_freep(&is->audio_buf1); |
|
is->audio_buf1_size = 0; |
|
is->audio_buf = NULL; |
|
|
|
if (is->rdft) { |
|
av_rdft_end(is->rdft); |
|
av_freep(&is->rdft_data); |
|
is->rdft = NULL; |
|
is->rdft_bits = 0; |
|
} |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
decoder_abort(&is->viddec, &is->pictq); |
|
decoder_destroy(&is->viddec); |
|
break; |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
decoder_abort(&is->subdec, &is->subpq); |
|
decoder_destroy(&is->subdec); |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
ic->streams[stream_index]->discard = AVDISCARD_ALL; |
|
switch (codecpar->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
is->audio_st = NULL; |
|
is->audio_stream = -1; |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
is->video_st = NULL; |
|
is->video_stream = -1; |
|
break; |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
is->subtitle_st = NULL; |
|
is->subtitle_stream = -1; |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
|
|
static void stream_close(VideoState *is) |
|
{ |
|
/* XXX: use a special url_shutdown call to abort parse cleanly */ |
|
is->abort_request = 1; |
|
SDL_WaitThread(is->read_tid, NULL); |
|
|
|
/* close each stream */ |
|
if (is->audio_stream >= 0) |
|
stream_component_close(is, is->audio_stream); |
|
if (is->video_stream >= 0) |
|
stream_component_close(is, is->video_stream); |
|
if (is->subtitle_stream >= 0) |
|
stream_component_close(is, is->subtitle_stream); |
|
|
|
avformat_close_input(&is->ic); |
|
|
|
packet_queue_destroy(&is->videoq); |
|
packet_queue_destroy(&is->audioq); |
|
packet_queue_destroy(&is->subtitleq); |
|
|
|
/* free all pictures */ |
|
frame_queue_destory(&is->pictq); |
|
frame_queue_destory(&is->sampq); |
|
frame_queue_destory(&is->subpq); |
|
SDL_DestroyCond(is->continue_read_thread); |
|
#if !CONFIG_AVFILTER |
|
sws_freeContext(is->img_convert_ctx); |
|
#endif |
|
sws_freeContext(is->sub_convert_ctx); |
|
av_free(is->filename); |
|
av_free(is); |
|
} |
|
|
|
static void do_exit(VideoState *is) |
|
{ |
|
if (is) { |
|
stream_close(is); |
|
} |
|
av_lockmgr_register(NULL); |
|
uninit_opts(); |
|
#if CONFIG_AVFILTER |
|
av_freep(&vfilters_list); |
|
#endif |
|
avformat_network_deinit(); |
|
if (show_status) |
|
printf("\n"); |
|
SDL_Quit(); |
|
av_log(NULL, AV_LOG_QUIET, "%s", ""); |
|
exit(0); |
|
} |
|
|
|
static void sigterm_handler(int sig) |
|
{ |
|
exit(123); |
|
} |
|
|
|
static void set_default_window_size(int width, int height, AVRational sar) |
|
{ |
|
SDL_Rect rect; |
|
calculate_display_rect(&rect, 0, 0, INT_MAX, height, width, height, sar); |
|
default_width = rect.w; |
|
default_height = rect.h; |
|
} |
|
|
|
static int video_open(VideoState *is, int force_set_video_mode, Frame *vp) |
|
{ |
|
int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL; |
|
int w,h; |
|
|
|
if (is_full_screen) flags |= SDL_FULLSCREEN; |
|
else flags |= SDL_RESIZABLE; |
|
|
|
if (vp && vp->width) |
|
set_default_window_size(vp->width, vp->height, vp->sar); |
|
|
|
if (is_full_screen && fs_screen_width) { |
|
w = fs_screen_width; |
|
h = fs_screen_height; |
|
} else if (!is_full_screen && screen_width) { |
|
w = screen_width; |
|
h = screen_height; |
|
} else { |
|
w = default_width; |
|
h = default_height; |
|
} |
|
w = FFMIN(16383, w); |
|
if (screen && is->width == screen->w && screen->w == w |
|
&& is->height== screen->h && screen->h == h && !force_set_video_mode) |
|
return 0; |
|
screen = SDL_SetVideoMode(w, h, 0, flags); |
|
if (!screen) { |
|
av_log(NULL, AV_LOG_FATAL, "SDL: could not set video mode - exiting\n"); |
|
do_exit(is); |
|
} |
|
if (!window_title) |
|
window_title = input_filename; |
|
SDL_WM_SetCaption(window_title, window_title); |
|
|
|
is->width = screen->w; |
|
is->height = screen->h; |
|
|
|
return 0; |
|
} |
|
|
|
/* display the current picture, if any */ |
|
static void video_display(VideoState *is) |
|
{ |
|
if (!screen) |
|
video_open(is, 0, NULL); |
|
if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO) |
|
video_audio_display(is); |
|
else if (is->video_st) |
|
video_image_display(is); |
|
} |
|
|
|
static double get_clock(Clock *c) |
|
{ |
|
if (*c->queue_serial != c->serial) |
|
return NAN; |
|
if (c->paused) { |
|
return c->pts; |
|
} else { |
|
double time = av_gettime_relative() / 1000000.0; |
|
return c->pts_drift + time - (time - c->last_updated) * (1.0 - c->speed); |
|
} |
|
} |
|
|
|
static void set_clock_at(Clock *c, double pts, int serial, double time) |
|
{ |
|
c->pts = pts; |
|
c->last_updated = time; |
|
c->pts_drift = c->pts - time; |
|
c->serial = serial; |
|
} |
|
|
|
static void set_clock(Clock *c, double pts, int serial) |
|
{ |
|
double time = av_gettime_relative() / 1000000.0; |
|
set_clock_at(c, pts, serial, time); |
|
} |
|
|
|
static void set_clock_speed(Clock *c, double speed) |
|
{ |
|
set_clock(c, get_clock(c), c->serial); |
|
c->speed = speed; |
|
} |
|
|
|
static void init_clock(Clock *c, int *queue_serial) |
|
{ |
|
c->speed = 1.0; |
|
c->paused = 0; |
|
c->queue_serial = queue_serial; |
|
set_clock(c, NAN, -1); |
|
} |
|
|
|
static void sync_clock_to_slave(Clock *c, Clock *slave) |
|
{ |
|
double clock = get_clock(c); |
|
double slave_clock = get_clock(slave); |
|
if (!isnan(slave_clock) && (isnan(clock) || fabs(clock - slave_clock) > AV_NOSYNC_THRESHOLD)) |
|
set_clock(c, slave_clock, slave->serial); |
|
} |
|
|
|
static int get_master_sync_type(VideoState *is) { |
|
if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) { |
|
if (is->video_st) |
|
return AV_SYNC_VIDEO_MASTER; |
|
else |
|
return AV_SYNC_AUDIO_MASTER; |
|
} else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) { |
|
if (is->audio_st) |
|
return AV_SYNC_AUDIO_MASTER; |
|
else |
|
return AV_SYNC_EXTERNAL_CLOCK; |
|
} else { |
|
return AV_SYNC_EXTERNAL_CLOCK; |
|
} |
|
} |
|
|
|
/* get the current master clock value */ |
|
static double get_master_clock(VideoState *is) |
|
{ |
|
double val; |
|
|
|
switch (get_master_sync_type(is)) { |
|
case AV_SYNC_VIDEO_MASTER: |
|
val = get_clock(&is->vidclk); |
|
break; |
|
case AV_SYNC_AUDIO_MASTER: |
|
val = get_clock(&is->audclk); |
|
break; |
|
default: |
|
val = get_clock(&is->extclk); |
|
break; |
|
} |
|
return val; |
|
} |
|
|
|
static void check_external_clock_speed(VideoState *is) { |
|
if (is->video_stream >= 0 && is->videoq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES || |
|
is->audio_stream >= 0 && is->audioq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES) { |
|
set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP)); |
|
} else if ((is->video_stream < 0 || is->videoq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES) && |
|
(is->audio_stream < 0 || is->audioq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES)) { |
|
set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP)); |
|
} else { |
|
double speed = is->extclk.speed; |
|
if (speed != 1.0) |
|
set_clock_speed(&is->extclk, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed)); |
|
} |
|
} |
|
|
|
/* seek in the stream */ |
|
static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes) |
|
{ |
|
if (!is->seek_req) { |
|
is->seek_pos = pos; |
|
is->seek_rel = rel; |
|
is->seek_flags &= ~AVSEEK_FLAG_BYTE; |
|
if (seek_by_bytes) |
|
is->seek_flags |= AVSEEK_FLAG_BYTE; |
|
is->seek_req = 1; |
|
SDL_CondSignal(is->continue_read_thread); |
|
} |
|
} |
|
|
|
/* pause or resume the video */ |
|
static void stream_toggle_pause(VideoState *is) |
|
{ |
|
if (is->paused) { |
|
is->frame_timer += av_gettime_relative() / 1000000.0 - is->vidclk.last_updated; |
|
if (is->read_pause_return != AVERROR(ENOSYS)) { |
|
is->vidclk.paused = 0; |
|
} |
|
set_clock(&is->vidclk, get_clock(&is->vidclk), is->vidclk.serial); |
|
} |
|
set_clock(&is->extclk, get_clock(&is->extclk), is->extclk.serial); |
|
is->paused = is->audclk.paused = is->vidclk.paused = is->extclk.paused = !is->paused; |
|
} |
|
|
|
static void toggle_pause(VideoState *is) |
|
{ |
|
stream_toggle_pause(is); |
|
is->step = 0; |
|
} |
|
|
|
static void toggle_mute(VideoState *is) |
|
{ |
|
is->muted = !is->muted; |
|
} |
|
|
|
static void update_volume(VideoState *is, int sign, int step) |
|
{ |
|
is->audio_volume = av_clip(is->audio_volume + sign * step, 0, SDL_MIX_MAXVOLUME); |
|
} |
|
|
|
static void step_to_next_frame(VideoState *is) |
|
{ |
|
/* if the stream is paused unpause it, then step */ |
|
if (is->paused) |
|
stream_toggle_pause(is); |
|
is->step = 1; |
|
} |
|
|
|
static double compute_target_delay(double delay, VideoState *is) |
|
{ |
|
double sync_threshold, diff = 0; |
|
|
|
/* update delay to follow master synchronisation source */ |
|
if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) { |
|
/* if video is slave, we try to correct big delays by |
|
duplicating or deleting a frame */ |
|
diff = get_clock(&is->vidclk) - get_master_clock(is); |
|
|
|
/* skip or repeat frame. We take into account the |
|
delay to compute the threshold. I still don't know |
|
if it is the best guess */ |
|
sync_threshold = FFMAX(AV_SYNC_THRESHOLD_MIN, FFMIN(AV_SYNC_THRESHOLD_MAX, delay)); |
|
if (!isnan(diff) && fabs(diff) < is->max_frame_duration) { |
|
if (diff <= -sync_threshold) |
|
delay = FFMAX(0, delay + diff); |
|
else if (diff >= sync_threshold && delay > AV_SYNC_FRAMEDUP_THRESHOLD) |
|
delay = delay + diff; |
|
else if (diff >= sync_threshold) |
|
delay = 2 * delay; |
|
} |
|
} |
|
|
|
av_log(NULL, AV_LOG_TRACE, "video: delay=%0.3f A-V=%f\n", |
|
delay, -diff); |
|
|
|
return delay; |
|
} |
|
|
|
static double vp_duration(VideoState *is, Frame *vp, Frame *nextvp) { |
|
if (vp->serial == nextvp->serial) { |
|
double duration = nextvp->pts - vp->pts; |
|
if (isnan(duration) || duration <= 0 || duration > is->max_frame_duration) |
|
return vp->duration; |
|
else |
|
return duration; |
|
} else { |
|
return 0.0; |
|
} |
|
} |
|
|
|
static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) { |
|
/* update current video pts */ |
|
set_clock(&is->vidclk, pts, serial); |
|
sync_clock_to_slave(&is->extclk, &is->vidclk); |
|
} |
|
|
|
/* called to display each frame */ |
|
static void video_refresh(void *opaque, double *remaining_time) |
|
{ |
|
VideoState *is = opaque; |
|
double time; |
|
|
|
Frame *sp, *sp2; |
|
|
|
if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime) |
|
check_external_clock_speed(is); |
|
|
|
if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) { |
|
time = av_gettime_relative() / 1000000.0; |
|
if (is->force_refresh || is->last_vis_time + rdftspeed < time) { |
|
video_display(is); |
|
is->last_vis_time = time; |
|
} |
|
*remaining_time = FFMIN(*remaining_time, is->last_vis_time + rdftspeed - time); |
|
} |
|
|
|
if (is->video_st) { |
|
retry: |
|
if (frame_queue_nb_remaining(&is->pictq) == 0) { |
|
// nothing to do, no picture to display in the queue |
|
} else { |
|
double last_duration, duration, delay; |
|
Frame *vp, *lastvp; |
|
|
|
/* dequeue the picture */ |
|
lastvp = frame_queue_peek_last(&is->pictq); |
|
vp = frame_queue_peek(&is->pictq); |
|
|
|
if (vp->serial != is->videoq.serial) { |
|
frame_queue_next(&is->pictq); |
|
goto retry; |
|
} |
|
|
|
if (lastvp->serial != vp->serial) |
|
is->frame_timer = av_gettime_relative() / 1000000.0; |
|
|
|
if (is->paused) |
|
goto display; |
|
|
|
/* compute nominal last_duration */ |
|
last_duration = vp_duration(is, lastvp, vp); |
|
delay = compute_target_delay(last_duration, is); |
|
|
|
time= av_gettime_relative()/1000000.0; |
|
if (time < is->frame_timer + delay) { |
|
*remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time); |
|
goto display; |
|
} |
|
|
|
is->frame_timer += delay; |
|
if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX) |
|
is->frame_timer = time; |
|
|
|
SDL_LockMutex(is->pictq.mutex); |
|
if (!isnan(vp->pts)) |
|
update_video_pts(is, vp->pts, vp->pos, vp->serial); |
|
SDL_UnlockMutex(is->pictq.mutex); |
|
|
|
if (frame_queue_nb_remaining(&is->pictq) > 1) { |
|
Frame *nextvp = frame_queue_peek_next(&is->pictq); |
|
duration = vp_duration(is, vp, nextvp); |
|
if(!is->step && (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){ |
|
is->frame_drops_late++; |
|
frame_queue_next(&is->pictq); |
|
goto retry; |
|
} |
|
} |
|
|
|
if (is->subtitle_st) { |
|
while (frame_queue_nb_remaining(&is->subpq) > 0) { |
|
sp = frame_queue_peek(&is->subpq); |
|
|
|
if (frame_queue_nb_remaining(&is->subpq) > 1) |
|
sp2 = frame_queue_peek_next(&is->subpq); |
|
else |
|
sp2 = NULL; |
|
|
|
if (sp->serial != is->subtitleq.serial |
|
|| (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) |
|
|| (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) |
|
{ |
|
frame_queue_next(&is->subpq); |
|
} else { |
|
break; |
|
} |
|
} |
|
} |
|
|
|
frame_queue_next(&is->pictq); |
|
is->force_refresh = 1; |
|
|
|
if (is->step && !is->paused) |
|
stream_toggle_pause(is); |
|
} |
|
display: |
|
/* display picture */ |
|
if (!display_disable && is->force_refresh && is->show_mode == SHOW_MODE_VIDEO && is->pictq.rindex_shown) |
|
video_display(is); |
|
} |
|
is->force_refresh = 0; |
|
if (show_status) { |
|
static int64_t last_time; |
|
int64_t cur_time; |
|
int aqsize, vqsize, sqsize; |
|
double av_diff; |
|
|
|
cur_time = av_gettime_relative(); |
|
if (!last_time || (cur_time - last_time) >= 30000) { |
|
aqsize = 0; |
|
vqsize = 0; |
|
sqsize = 0; |
|
if (is->audio_st) |
|
aqsize = is->audioq.size; |
|
if (is->video_st) |
|
vqsize = is->videoq.size; |
|
if (is->subtitle_st) |
|
sqsize = is->subtitleq.size; |
|
av_diff = 0; |
|
if (is->audio_st && is->video_st) |
|
av_diff = get_clock(&is->audclk) - get_clock(&is->vidclk); |
|
else if (is->video_st) |
|
av_diff = get_master_clock(is) - get_clock(&is->vidclk); |
|
else if (is->audio_st) |
|
av_diff = get_master_clock(is) - get_clock(&is->audclk); |
|
av_log(NULL, AV_LOG_INFO, |
|
"%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r", |
|
get_master_clock(is), |
|
(is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : " ")), |
|
av_diff, |
|
is->frame_drops_early + is->frame_drops_late, |
|
aqsize / 1024, |
|
vqsize / 1024, |
|
sqsize, |
|
is->video_st ? is->viddec.avctx->pts_correction_num_faulty_dts : 0, |
|
is->video_st ? is->viddec.avctx->pts_correction_num_faulty_pts : 0); |
|
fflush(stdout); |
|
last_time = cur_time; |
|
} |
|
} |
|
} |
|
|
|
/* allocate a picture (needs to do that in main thread to avoid |
|
potential locking problems */ |
|
static void alloc_picture(VideoState *is) |
|
{ |
|
Frame *vp; |
|
int64_t bufferdiff; |
|
|
|
vp = &is->pictq.queue[is->pictq.windex]; |
|
|
|
free_picture(vp); |
|
|
|
video_open(is, 0, vp); |
|
|
|
vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height, |
|
SDL_YV12_OVERLAY, |
|
screen); |
|
bufferdiff = vp->bmp ? FFMAX(vp->bmp->pixels[0], vp->bmp->pixels[1]) - FFMIN(vp->bmp->pixels[0], vp->bmp->pixels[1]) : 0; |
|
if (!vp->bmp || vp->bmp->pitches[0] < vp->width || bufferdiff < (int64_t)vp->height * vp->bmp->pitches[0]) { |
|
/* SDL allocates a buffer smaller than requested if the video |
|
* overlay hardware is unable to support the requested size. */ |
|
av_log(NULL, AV_LOG_FATAL, |
|
"Error: the video system does not support an image\n" |
|
"size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n" |
|
"to reduce the image size.\n", vp->width, vp->height ); |
|
do_exit(is); |
|
} |
|
|
|
SDL_LockMutex(is->pictq.mutex); |
|
vp->allocated = 1; |
|
SDL_CondSignal(is->pictq.cond); |
|
SDL_UnlockMutex(is->pictq.mutex); |
|
} |
|
|
|
static void duplicate_right_border_pixels(SDL_Overlay *bmp) { |
|
int i, width, height; |
|
Uint8 *p, *maxp; |
|
for (i = 0; i < 3; i++) { |
|
width = bmp->w; |
|
height = bmp->h; |
|
if (i > 0) { |
|
width >>= 1; |
|
height >>= 1; |
|
} |
|
if (bmp->pitches[i] > width) { |
|
maxp = bmp->pixels[i] + bmp->pitches[i] * height - 1; |
|
for (p = bmp->pixels[i] + width - 1; p < maxp; p += bmp->pitches[i]) |
|
*(p+1) = *p; |
|
} |
|
} |
|
} |
|
|
|
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial) |
|
{ |
|
Frame *vp; |
|
|
|
#if defined(DEBUG_SYNC) |
|
printf("frame_type=%c pts=%0.3f\n", |
|
av_get_picture_type_char(src_frame->pict_type), pts); |
|
#endif |
|
|
|
if (!(vp = frame_queue_peek_writable(&is->pictq))) |
|
return -1; |
|
|
|
vp->sar = src_frame->sample_aspect_ratio; |
|
|
|
/* alloc or resize hardware picture buffer */ |
|
if (!vp->bmp || vp->reallocate || !vp->allocated || |
|
vp->width != src_frame->width || |
|
vp->height != src_frame->height) { |
|
SDL_Event event; |
|
|
|
vp->allocated = 0; |
|
vp->reallocate = 0; |
|
vp->width = src_frame->width; |
|
vp->height = src_frame->height; |
|
|
|
/* the allocation must be done in the main thread to avoid |
|
locking problems. */ |
|
event.type = FF_ALLOC_EVENT; |
|
event.user.data1 = is; |
|
SDL_PushEvent(&event); |
|
|
|
/* wait until the picture is allocated */ |
|
SDL_LockMutex(is->pictq.mutex); |
|
while (!vp->allocated && !is->videoq.abort_request) { |
|
SDL_CondWait(is->pictq.cond, is->pictq.mutex); |
|
} |
|
/* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */ |
|
if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) { |
|
while (!vp->allocated && !is->abort_request) { |
|
SDL_CondWait(is->pictq.cond, is->pictq.mutex); |
|
} |
|
} |
|
SDL_UnlockMutex(is->pictq.mutex); |
|
|
|
if (is->videoq.abort_request) |
|
return -1; |
|
} |
|
|
|
/* if the frame is not skipped, then display it */ |
|
if (vp->bmp) { |
|
uint8_t *data[4]; |
|
int linesize[4]; |
|
|
|
/* get a pointer on the bitmap */ |
|
SDL_LockYUVOverlay (vp->bmp); |
|
|
|
data[0] = vp->bmp->pixels[0]; |
|
data[1] = vp->bmp->pixels[2]; |
|
data[2] = vp->bmp->pixels[1]; |
|
|
|
linesize[0] = vp->bmp->pitches[0]; |
|
linesize[1] = vp->bmp->pitches[2]; |
|
linesize[2] = vp->bmp->pitches[1]; |
|
|
|
#if CONFIG_AVFILTER |
|
// FIXME use direct rendering |
|
av_image_copy(data, linesize, (const uint8_t **)src_frame->data, src_frame->linesize, |
|
src_frame->format, vp->width, vp->height); |
|
#else |
|
{ |
|
AVDictionaryEntry *e = av_dict_get(sws_dict, "sws_flags", NULL, 0); |
|
if (e) { |
|
const AVClass *class = sws_get_class(); |
|
const AVOption *o = av_opt_find(&class, "sws_flags", NULL, 0, |
|
AV_OPT_SEARCH_FAKE_OBJ); |
|
int ret = av_opt_eval_flags(&class, o, e->value, &sws_flags); |
|
if (ret < 0) |
|
exit(1); |
|
} |
|
} |
|
|
|
is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx, |
|
vp->width, vp->height, src_frame->format, vp->width, vp->height, |
|
AV_PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL); |
|
if (!is->img_convert_ctx) { |
|
av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n"); |
|
exit(1); |
|
} |
|
sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize, |
|
0, vp->height, data, linesize); |
|
#endif |
|
/* workaround SDL PITCH_WORKAROUND */ |
|
duplicate_right_border_pixels(vp->bmp); |
|
/* update the bitmap content */ |
|
SDL_UnlockYUVOverlay(vp->bmp); |
|
|
|
vp->pts = pts; |
|
vp->duration = duration; |
|
vp->pos = pos; |
|
vp->serial = serial; |
|
|
|
/* now we can update the picture count */ |
|
frame_queue_push(&is->pictq); |
|
} |
|
return 0; |
|
} |
|
|
|
static int get_video_frame(VideoState *is, AVFrame *frame) |
|
{ |
|
int got_picture; |
|
|
|
if ((got_picture = decoder_decode_frame(&is->viddec, frame, NULL)) < 0) |
|
return -1; |
|
|
|
if (got_picture) { |
|
double dpts = NAN; |
|
|
|
if (frame->pts != AV_NOPTS_VALUE) |
|
dpts = av_q2d(is->video_st->time_base) * frame->pts; |
|
|
|
frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame); |
|
|
|
is->viddec_width = frame->width; |
|
is->viddec_height = frame->height; |
|
|
|
if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) { |
|
if (frame->pts != AV_NOPTS_VALUE) { |
|
double diff = dpts - get_master_clock(is); |
|
if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD && |
|
diff - is->frame_last_filter_delay < 0 && |
|
is->viddec.pkt_serial == is->vidclk.serial && |
|
is->videoq.nb_packets) { |
|
is->frame_drops_early++; |
|
av_frame_unref(frame); |
|
got_picture = 0; |
|
} |
|
} |
|
} |
|
} |
|
|
|
return got_picture; |
|
} |
|
|
|
#if CONFIG_AVFILTER |
|
static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph, |
|
AVFilterContext *source_ctx, AVFilterContext *sink_ctx) |
|
{ |
|
int ret, i; |
|
int nb_filters = graph->nb_filters; |
|
AVFilterInOut *outputs = NULL, *inputs = NULL; |
|
|
|
if (filtergraph) { |
|
outputs = avfilter_inout_alloc(); |
|
inputs = avfilter_inout_alloc(); |
|
if (!outputs || !inputs) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
|
|
outputs->name = av_strdup("in"); |
|
outputs->filter_ctx = source_ctx; |
|
outputs->pad_idx = 0; |
|
outputs->next = NULL; |
|
|
|
inputs->name = av_strdup("out"); |
|
inputs->filter_ctx = sink_ctx; |
|
inputs->pad_idx = 0; |
|
inputs->next = NULL; |
|
|
|
if ((ret = avfilter_graph_parse_ptr(graph, filtergraph, &inputs, &outputs, NULL)) < 0) |
|
goto fail; |
|
} else { |
|
if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0) |
|
goto fail; |
|
} |
|
|
|
/* Reorder the filters to ensure that inputs of the custom filters are merged first */ |
|
for (i = 0; i < graph->nb_filters - nb_filters; i++) |
|
FFSWAP(AVFilterContext*, graph->filters[i], graph->filters[i + nb_filters]); |
|
|
|
ret = avfilter_graph_config(graph, NULL); |
|
fail: |
|
avfilter_inout_free(&outputs); |
|
avfilter_inout_free(&inputs); |
|
return ret; |
|
} |
|
|
|
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame) |
|
{ |
|
static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }; |
|
char sws_flags_str[512] = ""; |
|
char buffersrc_args[256]; |
|
int ret; |
|
AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter = NULL; |
|
AVCodecParameters *codecpar = is->video_st->codecpar; |
|
AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL); |
|
AVDictionaryEntry *e = NULL; |
|
|
|
while ((e = av_dict_get(sws_dict, "", e, AV_DICT_IGNORE_SUFFIX))) { |
|
if (!strcmp(e->key, "sws_flags")) { |
|
av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", "flags", e->value); |
|
} else |
|
av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", e->key, e->value); |
|
} |
|
if (strlen(sws_flags_str)) |
|
sws_flags_str[strlen(sws_flags_str)-1] = '\0'; |
|
|
|
graph->scale_sws_opts = av_strdup(sws_flags_str); |
|
|
|
snprintf(buffersrc_args, sizeof(buffersrc_args), |
|
"video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d", |
|
frame->width, frame->height, frame->format, |
|
is->video_st->time_base.num, is->video_st->time_base.den, |
|
codecpar->sample_aspect_ratio.num, FFMAX(codecpar->sample_aspect_ratio.den, 1)); |
|
if (fr.num && fr.den) |
|
av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den); |
|
|
|
if ((ret = avfilter_graph_create_filter(&filt_src, |
|
avfilter_get_by_name("buffer"), |
|
"ffplay_buffer", buffersrc_args, NULL, |
|
graph)) < 0) |
|
goto fail; |
|
|
|
ret = avfilter_graph_create_filter(&filt_out, |
|
avfilter_get_by_name("buffersink"), |
|
"ffplay_buffersink", NULL, NULL, graph); |
|
if (ret < 0) |
|
goto fail; |
|
|
|
if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0) |
|
goto fail; |
|
|
|
last_filter = filt_out; |
|
|
|
/* Note: this macro adds a filter before the lastly added filter, so the |
|
* processing order of the filters is in reverse */ |
|
#define INSERT_FILT(name, arg) do { \ |
|
AVFilterContext *filt_ctx; \ |
|
\ |
|
ret = avfilter_graph_create_filter(&filt_ctx, \ |
|
avfilter_get_by_name(name), \ |
|
"ffplay_" name, arg, NULL, graph); \ |
|
if (ret < 0) \ |
|
goto fail; \ |
|
\ |
|
ret = avfilter_link(filt_ctx, 0, last_filter, 0); \ |
|
if (ret < 0) \ |
|
goto fail; \ |
|
\ |
|
last_filter = filt_ctx; \ |
|
} while (0) |
|
|
|
/* SDL YUV code is not handling odd width/height for some driver |
|
* combinations, therefore we crop the picture to an even width/height. */ |
|
INSERT_FILT("crop", "floor(in_w/2)*2:floor(in_h/2)*2"); |
|
|
|
if (autorotate) { |
|
double theta = get_rotation(is->video_st); |
|
|
|
if (fabs(theta - 90) < 1.0) { |
|
INSERT_FILT("transpose", "clock"); |
|
} else if (fabs(theta - 180) < 1.0) { |
|
INSERT_FILT("hflip", NULL); |
|
INSERT_FILT("vflip", NULL); |
|
} else if (fabs(theta - 270) < 1.0) { |
|
INSERT_FILT("transpose", "cclock"); |
|
} else if (fabs(theta) > 1.0) { |
|
char rotate_buf[64]; |
|
snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta); |
|
INSERT_FILT("rotate", rotate_buf); |
|
} |
|
} |
|
|
|
if ((ret = configure_filtergraph(graph, vfilters, filt_src, last_filter)) < 0) |
|
goto fail; |
|
|
|
is->in_video_filter = filt_src; |
|
is->out_video_filter = filt_out; |
|
|
|
fail: |
|
return ret; |
|
} |
|
|
|
static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format) |
|
{ |
|
static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE }; |
|
int sample_rates[2] = { 0, -1 }; |
|
int64_t channel_layouts[2] = { 0, -1 }; |
|
int channels[2] = { 0, -1 }; |
|
AVFilterContext *filt_asrc = NULL, *filt_asink = NULL; |
|
char aresample_swr_opts[512] = ""; |
|
AVDictionaryEntry *e = NULL; |
|
char asrc_args[256]; |
|
int ret; |
|
|
|
avfilter_graph_free(&is->agraph); |
|
if (!(is->agraph = avfilter_graph_alloc())) |
|
return AVERROR(ENOMEM); |
|
|
|
while ((e = av_dict_get(swr_opts, "", e, AV_DICT_IGNORE_SUFFIX))) |
|
av_strlcatf(aresample_swr_opts, sizeof(aresample_swr_opts), "%s=%s:", e->key, e->value); |
|
if (strlen(aresample_swr_opts)) |
|
aresample_swr_opts[strlen(aresample_swr_opts)-1] = '\0'; |
|
av_opt_set(is->agraph, "aresample_swr_opts", aresample_swr_opts, 0); |
|
|
|
ret = snprintf(asrc_args, sizeof(asrc_args), |
|
"sample_rate=%d:sample_fmt=%s:channels=%d:time_base=%d/%d", |
|
is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt), |
|
is->audio_filter_src.channels, |
|
1, is->audio_filter_src.freq); |
|
if (is->audio_filter_src.channel_layout) |
|
snprintf(asrc_args + ret, sizeof(asrc_args) - ret, |
|
":channel_layout=0x%"PRIx64, is->audio_filter_src.channel_layout); |
|
|
|
ret = avfilter_graph_create_filter(&filt_asrc, |
|
avfilter_get_by_name("abuffer"), "ffplay_abuffer", |
|
asrc_args, NULL, is->agraph); |
|
if (ret < 0) |
|
goto end; |
|
|
|
|
|
ret = avfilter_graph_create_filter(&filt_asink, |
|
avfilter_get_by_name("abuffersink"), "ffplay_abuffersink", |
|
NULL, NULL, is->agraph); |
|
if (ret < 0) |
|
goto end; |
|
|
|
if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts, AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0) |
|
goto end; |
|
if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0) |
|
goto end; |
|
|
|
if (force_output_format) { |
|
channel_layouts[0] = is->audio_tgt.channel_layout; |
|
channels [0] = is->audio_tgt.channels; |
|
sample_rates [0] = is->audio_tgt.freq; |
|
if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0) |
|
goto end; |
|
if ((ret = av_opt_set_int_list(filt_asink, "channel_layouts", channel_layouts, -1, AV_OPT_SEARCH_CHILDREN)) < 0) |
|
goto end; |
|
if ((ret = av_opt_set_int_list(filt_asink, "channel_counts" , channels , -1, AV_OPT_SEARCH_CHILDREN)) < 0) |
|
goto end; |
|
if ((ret = av_opt_set_int_list(filt_asink, "sample_rates" , sample_rates , -1, AV_OPT_SEARCH_CHILDREN)) < 0) |
|
goto end; |
|
} |
|
|
|
|
|
if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0) |
|
goto end; |
|
|
|
is->in_audio_filter = filt_asrc; |
|
is->out_audio_filter = filt_asink; |
|
|
|
end: |
|
if (ret < 0) |
|
avfilter_graph_free(&is->agraph); |
|
return ret; |
|
} |
|
#endif /* CONFIG_AVFILTER */ |
|
|
|
static int audio_thread(void *arg) |
|
{ |
|
VideoState *is = arg; |
|
AVFrame *frame = av_frame_alloc(); |
|
Frame *af; |
|
#if CONFIG_AVFILTER |
|
int last_serial = -1; |
|
int64_t dec_channel_layout; |
|
int reconfigure; |
|
#endif |
|
int got_frame = 0; |
|
AVRational tb; |
|
int ret = 0; |
|
|
|
if (!frame) |
|
return AVERROR(ENOMEM); |
|
|
|
do { |
|
if ((got_frame = decoder_decode_frame(&is->auddec, frame, NULL)) < 0) |
|
goto the_end; |
|
|
|
if (got_frame) { |
|
tb = (AVRational){1, frame->sample_rate}; |
|
|
|
#if CONFIG_AVFILTER |
|
dec_channel_layout = get_valid_channel_layout(frame->channel_layout, av_frame_get_channels(frame)); |
|
|
|
reconfigure = |
|
cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels, |
|
frame->format, av_frame_get_channels(frame)) || |
|
is->audio_filter_src.channel_layout != dec_channel_layout || |
|
is->audio_filter_src.freq != frame->sample_rate || |
|
is->auddec.pkt_serial != last_serial; |
|
|
|
if (reconfigure) { |
|
char buf1[1024], buf2[1024]; |
|
av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout); |
|
av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout); |
|
av_log(NULL, AV_LOG_DEBUG, |
|
"Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n", |
|
is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, last_serial, |
|
frame->sample_rate, av_frame_get_channels(frame), av_get_sample_fmt_name(frame->format), buf2, is->auddec.pkt_serial); |
|
|
|
is->audio_filter_src.fmt = frame->format; |
|
is->audio_filter_src.channels = av_frame_get_channels(frame); |
|
is->audio_filter_src.channel_layout = dec_channel_layout; |
|
is->audio_filter_src.freq = frame->sample_rate; |
|
last_serial = is->auddec.pkt_serial; |
|
|
|
if ((ret = configure_audio_filters(is, afilters, 1)) < 0) |
|
goto the_end; |
|
} |
|
|
|
if ((ret = av_buffersrc_add_frame(is->in_audio_filter, frame)) < 0) |
|
goto the_end; |
|
|
|
while ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, frame, 0)) >= 0) { |
|
tb = is->out_audio_filter->inputs[0]->time_base; |
|
#endif |
|
if (!(af = frame_queue_peek_writable(&is->sampq))) |
|
goto the_end; |
|
|
|
af->pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb); |
|
af->pos = av_frame_get_pkt_pos(frame); |
|
af->serial = is->auddec.pkt_serial; |
|
af->duration = av_q2d((AVRational){frame->nb_samples, frame->sample_rate}); |
|
|
|
av_frame_move_ref(af->frame, frame); |
|
frame_queue_push(&is->sampq); |
|
|
|
#if CONFIG_AVFILTER |
|
if (is->audioq.serial != is->auddec.pkt_serial) |
|
break; |
|
} |
|
if (ret == AVERROR_EOF) |
|
is->auddec.finished = is->auddec.pkt_serial; |
|
#endif |
|
} |
|
} while (ret >= 0 || ret == AVERROR(EAGAIN) || ret == AVERROR_EOF); |
|
the_end: |
|
#if CONFIG_AVFILTER |
|
avfilter_graph_free(&is->agraph); |
|
#endif |
|
av_frame_free(&frame); |
|
return ret; |
|
} |
|
|
|
static int decoder_start(Decoder *d, int (*fn)(void *), void *arg) |
|
{ |
|
packet_queue_start(d->queue); |
|
d->decoder_tid = SDL_CreateThread(fn, arg); |
|
if (!d->decoder_tid) { |
|
av_log(NULL, AV_LOG_ERROR, "SDL_CreateThread(): %s\n", SDL_GetError()); |
|
return AVERROR(ENOMEM); |
|
} |
|
return 0; |
|
} |
|
|
|
static int video_thread(void *arg) |
|
{ |
|
VideoState *is = arg; |
|
AVFrame *frame = av_frame_alloc(); |
|
double pts; |
|
double duration; |
|
int ret; |
|
AVRational tb = is->video_st->time_base; |
|
AVRational frame_rate = av_guess_frame_rate(is->ic, is->video_st, NULL); |
|
|
|
#if CONFIG_AVFILTER |
|
AVFilterGraph *graph = avfilter_graph_alloc(); |
|
AVFilterContext *filt_out = NULL, *filt_in = NULL; |
|
int last_w = 0; |
|
int last_h = 0; |
|
enum AVPixelFormat last_format = -2; |
|
int last_serial = -1; |
|
int last_vfilter_idx = 0; |
|
if (!graph) { |
|
av_frame_free(&frame); |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
#endif |
|
|
|
if (!frame) { |
|
#if CONFIG_AVFILTER |
|
avfilter_graph_free(&graph); |
|
#endif |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
for (;;) { |
|
ret = get_video_frame(is, frame); |
|
if (ret < 0) |
|
goto the_end; |
|
if (!ret) |
|
continue; |
|
|
|
#if CONFIG_AVFILTER |
|
if ( last_w != frame->width |
|
|| last_h != frame->height |
|
|| last_format != frame->format |
|
|| last_serial != is->viddec.pkt_serial |
|
|| last_vfilter_idx != is->vfilter_idx) { |
|
av_log(NULL, AV_LOG_DEBUG, |
|
"Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n", |
|
last_w, last_h, |
|
(const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial, |
|
frame->width, frame->height, |
|
(const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), is->viddec.pkt_serial); |
|
avfilter_graph_free(&graph); |
|
graph = avfilter_graph_alloc(); |
|
if ((ret = configure_video_filters(graph, is, vfilters_list ? vfilters_list[is->vfilter_idx] : NULL, frame)) < 0) { |
|
SDL_Event event; |
|
event.type = FF_QUIT_EVENT; |
|
event.user.data1 = is; |
|
SDL_PushEvent(&event); |
|
goto the_end; |
|
} |
|
filt_in = is->in_video_filter; |
|
filt_out = is->out_video_filter; |
|
last_w = frame->width; |
|
last_h = frame->height; |
|
last_format = frame->format; |
|
last_serial = is->viddec.pkt_serial; |
|
last_vfilter_idx = is->vfilter_idx; |
|
frame_rate = filt_out->inputs[0]->frame_rate; |
|
} |
|
|
|
ret = av_buffersrc_add_frame(filt_in, frame); |
|
if (ret < 0) |
|
goto the_end; |
|
|
|
while (ret >= 0) { |
|
is->frame_last_returned_time = av_gettime_relative() / 1000000.0; |
|
|
|
ret = av_buffersink_get_frame_flags(filt_out, frame, 0); |
|
if (ret < 0) { |
|
if (ret == AVERROR_EOF) |
|
is->viddec.finished = is->viddec.pkt_serial; |
|
ret = 0; |
|
break; |
|
} |
|
|
|
is->frame_last_filter_delay = av_gettime_relative() / 1000000.0 - is->frame_last_returned_time; |
|
if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0) |
|
is->frame_last_filter_delay = 0; |
|
tb = filt_out->inputs[0]->time_base; |
|
#endif |
|
duration = (frame_rate.num && frame_rate.den ? av_q2d((AVRational){frame_rate.den, frame_rate.num}) : 0); |
|
pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb); |
|
ret = queue_picture(is, frame, pts, duration, av_frame_get_pkt_pos(frame), is->viddec.pkt_serial); |
|
av_frame_unref(frame); |
|
#if CONFIG_AVFILTER |
|
} |
|
#endif |
|
|
|
if (ret < 0) |
|
goto the_end; |
|
} |
|
the_end: |
|
#if CONFIG_AVFILTER |
|
avfilter_graph_free(&graph); |
|
#endif |
|
av_frame_free(&frame); |
|
return 0; |
|
} |
|
|
|
static int subtitle_thread(void *arg) |
|
{ |
|
VideoState *is = arg; |
|
Frame *sp; |
|
int got_subtitle; |
|
double pts; |
|
int i; |
|
|
|
for (;;) { |
|
if (!(sp = frame_queue_peek_writable(&is->subpq))) |
|
return 0; |
|
|
|
if ((got_subtitle = decoder_decode_frame(&is->subdec, NULL, &sp->sub)) < 0) |
|
break; |
|
|
|
pts = 0; |
|
|
|
if (got_subtitle && sp->sub.format == 0) { |
|
if (sp->sub.pts != AV_NOPTS_VALUE) |
|
pts = sp->sub.pts / (double)AV_TIME_BASE; |
|
sp->pts = pts; |
|
sp->serial = is->subdec.pkt_serial; |
|
if (!(sp->subrects = av_mallocz_array(sp->sub.num_rects, sizeof(AVSubtitleRect*)))) { |
|
av_log(NULL, AV_LOG_FATAL, "Cannot allocate subrects\n"); |
|
exit(1); |
|
} |
|
|
|
for (i = 0; i < sp->sub.num_rects; i++) |
|
{ |
|
int in_w = sp->sub.rects[i]->w; |
|
int in_h = sp->sub.rects[i]->h; |
|
int subw = is->subdec.avctx->width ? is->subdec.avctx->width : is->viddec_width; |
|
int subh = is->subdec.avctx->height ? is->subdec.avctx->height : is->viddec_height; |
|
int out_w = is->viddec_width ? in_w * is->viddec_width / subw : in_w; |
|
int out_h = is->viddec_height ? in_h * is->viddec_height / subh : in_h; |
|
|
|
if (!(sp->subrects[i] = av_mallocz(sizeof(AVSubtitleRect))) || |
|
av_image_alloc(sp->subrects[i]->data, sp->subrects[i]->linesize, out_w, out_h, AV_PIX_FMT_YUVA420P, 16) < 0) { |
|
av_log(NULL, AV_LOG_FATAL, "Cannot allocate subtitle data\n"); |
|
exit(1); |
|
} |
|
|
|
is->sub_convert_ctx = sws_getCachedContext(is->sub_convert_ctx, |
|
in_w, in_h, AV_PIX_FMT_PAL8, out_w, out_h, |
|
AV_PIX_FMT_YUVA420P, sws_flags, NULL, NULL, NULL); |
|
if (!is->sub_convert_ctx) { |
|
av_log(NULL, AV_LOG_FATAL, "Cannot initialize the sub conversion context\n"); |
|
exit(1); |
|
} |
|
sws_scale(is->sub_convert_ctx, |
|
(void*)sp->sub.rects[i]->data, sp->sub.rects[i]->linesize, |
|
0, in_h, sp->subrects[i]->data, sp->subrects[i]->linesize); |
|
|
|
sp->subrects[i]->w = out_w; |
|
sp->subrects[i]->h = out_h; |
|
sp->subrects[i]->x = sp->sub.rects[i]->x * out_w / in_w; |
|
sp->subrects[i]->y = sp->sub.rects[i]->y * out_h / in_h; |
|
} |
|
|
|
/* now we can update the picture count */ |
|
frame_queue_push(&is->subpq); |
|
} else if (got_subtitle) { |
|
avsubtitle_free(&sp->sub); |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
/* copy samples for viewing in editor window */ |
|
static void update_sample_display(VideoState *is, short *samples, int samples_size) |
|
{ |
|
int size, len; |
|
|
|
size = samples_size / sizeof(short); |
|
while (size > 0) { |
|
len = SAMPLE_ARRAY_SIZE - is->sample_array_index; |
|
if (len > size) |
|
len = size; |
|
memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short)); |
|
samples += len; |
|
is->sample_array_index += len; |
|
if (is->sample_array_index >= SAMPLE_ARRAY_SIZE) |
|
is->sample_array_index = 0; |
|
size -= len; |
|
} |
|
} |
|
|
|
/* return the wanted number of samples to get better sync if sync_type is video |
|
* or external master clock */ |
|
static int synchronize_audio(VideoState *is, int nb_samples) |
|
{ |
|
int wanted_nb_samples = nb_samples; |
|
|
|
/* if not master, then we try to remove or add samples to correct the clock */ |
|
if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) { |
|
double diff, avg_diff; |
|
int min_nb_samples, max_nb_samples; |
|
|
|
diff = get_clock(&is->audclk) - get_master_clock(is); |
|
|
|
if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) { |
|
is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum; |
|
if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) { |
|
/* not enough measures to have a correct estimate */ |
|
is->audio_diff_avg_count++; |
|
} else { |
|
/* estimate the A-V difference */ |
|
avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef); |
|
|
|
if (fabs(avg_diff) >= is->audio_diff_threshold) { |
|
wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq); |
|
min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100)); |
|
max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100)); |
|
wanted_nb_samples = av_clip(wanted_nb_samples, min_nb_samples, max_nb_samples); |
|
} |
|
av_log(NULL, AV_LOG_TRACE, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n", |
|
diff, avg_diff, wanted_nb_samples - nb_samples, |
|
is->audio_clock, is->audio_diff_threshold); |
|
} |
|
} else { |
|
/* too big difference : may be initial PTS errors, so |
|
reset A-V filter */ |
|
is->audio_diff_avg_count = 0; |
|
is->audio_diff_cum = 0; |
|
} |
|
} |
|
|
|
return wanted_nb_samples; |
|
} |
|
|
|
/** |
|
* Decode one audio frame and return its uncompressed size. |
|
* |
|
* The processed audio frame is decoded, converted if required, and |
|
* stored in is->audio_buf, with size in bytes given by the return |
|
* value. |
|
*/ |
|
static int audio_decode_frame(VideoState *is) |
|
{ |
|
int data_size, resampled_data_size; |
|
int64_t dec_channel_layout; |
|
av_unused double audio_clock0; |
|
int wanted_nb_samples; |
|
Frame *af; |
|
|
|
if (is->paused) |
|
return -1; |
|
|
|
do { |
|
#if defined(_WIN32) |
|
while (frame_queue_nb_remaining(&is->sampq) == 0) { |
|
if ((av_gettime_relative() - audio_callback_time) > 1000000LL * is->audio_hw_buf_size / is->audio_tgt.bytes_per_sec / 2) |
|
return -1; |
|
av_usleep (1000); |
|
} |
|
#endif |
|
if (!(af = frame_queue_peek_readable(&is->sampq))) |
|
return -1; |
|
frame_queue_next(&is->sampq); |
|
} while (af->serial != is->audioq.serial); |
|
|
|
data_size = av_samples_get_buffer_size(NULL, av_frame_get_channels(af->frame), |
|
af->frame->nb_samples, |
|
af->frame->format, 1); |
|
|
|
dec_channel_layout = |
|
(af->frame->channel_layout && av_frame_get_channels(af->frame) == av_get_channel_layout_nb_channels(af->frame->channel_layout)) ? |
|
af->frame->channel_layout : av_get_default_channel_layout(av_frame_get_channels(af->frame)); |
|
wanted_nb_samples = synchronize_audio(is, af->frame->nb_samples); |
|
|
|
if (af->frame->format != is->audio_src.fmt || |
|
dec_channel_layout != is->audio_src.channel_layout || |
|
af->frame->sample_rate != is->audio_src.freq || |
|
(wanted_nb_samples != af->frame->nb_samples && !is->swr_ctx)) { |
|
swr_free(&is->swr_ctx); |
|
is->swr_ctx = swr_alloc_set_opts(NULL, |
|
is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq, |
|
dec_channel_layout, af->frame->format, af->frame->sample_rate, |
|
0, NULL); |
|
if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) { |
|
av_log(NULL, AV_LOG_ERROR, |
|
"Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n", |
|
af->frame->sample_rate, av_get_sample_fmt_name(af->frame->format), av_frame_get_channels(af->frame), |
|
is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels); |
|
swr_free(&is->swr_ctx); |
|
return -1; |
|
} |
|
is->audio_src.channel_layout = dec_channel_layout; |
|
is->audio_src.channels = av_frame_get_channels(af->frame); |
|
is->audio_src.freq = af->frame->sample_rate; |
|
is->audio_src.fmt = af->frame->format; |
|
} |
|
|
|
if (is->swr_ctx) { |
|
const uint8_t **in = (const uint8_t **)af->frame->extended_data; |
|
uint8_t **out = &is->audio_buf1; |
|
int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate + 256; |
|
int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0); |
|
int len2; |
|
if (out_size < 0) { |
|
av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n"); |
|
return -1; |
|
} |
|
if (wanted_nb_samples != af->frame->nb_samples) { |
|
if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - af->frame->nb_samples) * is->audio_tgt.freq / af->frame->sample_rate, |
|
wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate) < 0) { |
|
av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n"); |
|
return -1; |
|
} |
|
} |
|
av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size); |
|
if (!is->audio_buf1) |
|
return AVERROR(ENOMEM); |
|
len2 = swr_convert(is->swr_ctx, out, out_count, in, af->frame->nb_samples); |
|
if (len2 < 0) { |
|
av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n"); |
|
return -1; |
|
} |
|
if (len2 == out_count) { |
|
av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n"); |
|
if (swr_init(is->swr_ctx) < 0) |
|
swr_free(&is->swr_ctx); |
|
} |
|
is->audio_buf = is->audio_buf1; |
|
resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt); |
|
} else { |
|
is->audio_buf = af->frame->data[0]; |
|
resampled_data_size = data_size; |
|
} |
|
|
|
audio_clock0 = is->audio_clock; |
|
/* update the audio clock with the pts */ |
|
if (!isnan(af->pts)) |
|
is->audio_clock = af->pts + (double) af->frame->nb_samples / af->frame->sample_rate; |
|
else |
|
is->audio_clock = NAN; |
|
is->audio_clock_serial = af->serial; |
|
#ifdef DEBUG |
|
{ |
|
static double last_clock; |
|
printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n", |
|
is->audio_clock - last_clock, |
|
is->audio_clock, audio_clock0); |
|
last_clock = is->audio_clock; |
|
} |
|
#endif |
|
return resampled_data_size; |
|
} |
|
|
|
/* prepare a new audio buffer */ |
|
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len) |
|
{ |
|
VideoState *is = opaque; |
|
int audio_size, len1; |
|
|
|
audio_callback_time = av_gettime_relative(); |
|
|
|
while (len > 0) { |
|
if (is->audio_buf_index >= is->audio_buf_size) { |
|
audio_size = audio_decode_frame(is); |
|
if (audio_size < 0) { |
|
/* if error, just output silence */ |
|
is->audio_buf = NULL; |
|
is->audio_buf_size = SDL_AUDIO_MIN_BUFFER_SIZE / is->audio_tgt.frame_size * is->audio_tgt.frame_size; |
|
} else { |
|
if (is->show_mode != SHOW_MODE_VIDEO) |
|
update_sample_display(is, (int16_t *)is->audio_buf, audio_size); |
|
is->audio_buf_size = audio_size; |
|
} |
|
is->audio_buf_index = 0; |
|
} |
|
len1 = is->audio_buf_size - is->audio_buf_index; |
|
if (len1 > len) |
|
len1 = len; |
|
if (!is->muted && is->audio_buf && is->audio_volume == SDL_MIX_MAXVOLUME) |
|
memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1); |
|
else { |
|
memset(stream, 0, len1); |
|
if (!is->muted && is->audio_buf) |
|
SDL_MixAudio(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1, is->audio_volume); |
|
} |
|
len -= len1; |
|
stream += len1; |
|
is->audio_buf_index += len1; |
|
} |
|
is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index; |
|
/* Let's assume the audio driver that is used by SDL has two periods. */ |
|
if (!isnan(is->audio_clock)) { |
|
set_clock_at(&is->audclk, is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / is->audio_tgt.bytes_per_sec, is->audio_clock_serial, audio_callback_time / 1000000.0); |
|
sync_clock_to_slave(&is->extclk, &is->audclk); |
|
} |
|
} |
|
|
|
static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params) |
|
{ |
|
SDL_AudioSpec wanted_spec, spec; |
|
const char *env; |
|
static const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6}; |
|
static const int next_sample_rates[] = {0, 44100, 48000, 96000, 192000}; |
|
int next_sample_rate_idx = FF_ARRAY_ELEMS(next_sample_rates) - 1; |
|
|
|
env = SDL_getenv("SDL_AUDIO_CHANNELS"); |
|
if (env) { |
|
wanted_nb_channels = atoi(env); |
|
wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels); |
|
} |
|
if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) { |
|
wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels); |
|
wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX; |
|
} |
|
wanted_nb_channels = av_get_channel_layout_nb_channels(wanted_channel_layout); |
|
wanted_spec.channels = wanted_nb_channels; |
|
wanted_spec.freq = wanted_sample_rate; |
|
if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) { |
|
av_log(NULL, AV_LOG_ERROR, "Invalid sample rate or channel count!\n"); |
|
return -1; |
|
} |
|
while (next_sample_rate_idx && next_sample_rates[next_sample_rate_idx] >= wanted_spec.freq) |
|
next_sample_rate_idx--; |
|
wanted_spec.format = AUDIO_S16SYS; |
|
wanted_spec.silence = 0; |
|
wanted_spec.samples = FFMAX(SDL_AUDIO_MIN_BUFFER_SIZE, 2 << av_log2(wanted_spec.freq / SDL_AUDIO_MAX_CALLBACKS_PER_SEC)); |
|
wanted_spec.callback = sdl_audio_callback; |
|
wanted_spec.userdata = opaque; |
|
while (SDL_OpenAudio(&wanted_spec, &spec) < 0) { |
|
av_log(NULL, AV_LOG_WARNING, "SDL_OpenAudio (%d channels, %d Hz): %s\n", |
|
wanted_spec.channels, wanted_spec.freq, SDL_GetError()); |
|
wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)]; |
|
if (!wanted_spec.channels) { |
|
wanted_spec.freq = next_sample_rates[next_sample_rate_idx--]; |
|
wanted_spec.channels = wanted_nb_channels; |
|
if (!wanted_spec.freq) { |
|
av_log(NULL, AV_LOG_ERROR, |
|
"No more combinations to try, audio open failed\n"); |
|
return -1; |
|
} |
|
} |
|
wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels); |
|
} |
|
if (spec.format != AUDIO_S16SYS) { |
|
av_log(NULL, AV_LOG_ERROR, |
|
"SDL advised audio format %d is not supported!\n", spec.format); |
|
return -1; |
|
} |
|
if (spec.channels != wanted_spec.channels) { |
|
wanted_channel_layout = av_get_default_channel_layout(spec.channels); |
|
if (!wanted_channel_layout) { |
|
av_log(NULL, AV_LOG_ERROR, |
|
"SDL advised channel count %d is not supported!\n", spec.channels); |
|
return -1; |
|
} |
|
} |
|
|
|
audio_hw_params->fmt = AV_SAMPLE_FMT_S16; |
|
audio_hw_params->freq = spec.freq; |
|
audio_hw_params->channel_layout = wanted_channel_layout; |
|
audio_hw_params->channels = spec.channels; |
|
audio_hw_params->frame_size = av_samples_get_buffer_size(NULL, audio_hw_params->channels, 1, audio_hw_params->fmt, 1); |
|
audio_hw_params->bytes_per_sec = av_samples_get_buffer_size(NULL, audio_hw_params->channels, audio_hw_params->freq, audio_hw_params->fmt, 1); |
|
if (audio_hw_params->bytes_per_sec <= 0 || audio_hw_params->frame_size <= 0) { |
|
av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size failed\n"); |
|
return -1; |
|
} |
|
return spec.size; |
|
} |
|
|
|
/* open a given stream. Return 0 if OK */ |
|
static int stream_component_open(VideoState *is, int stream_index) |
|
{ |
|
AVFormatContext *ic = is->ic; |
|
AVCodecContext *avctx; |
|
AVCodec *codec; |
|
const char *forced_codec_name = NULL; |
|
AVDictionary *opts = NULL; |
|
AVDictionaryEntry *t = NULL; |
|
int sample_rate, nb_channels; |
|
int64_t channel_layout; |
|
int ret = 0; |
|
int stream_lowres = lowres; |
|
|
|
if (stream_index < 0 || stream_index >= ic->nb_streams) |
|
return -1; |
|
|
|
avctx = avcodec_alloc_context3(NULL); |
|
if (!avctx) |
|
return AVERROR(ENOMEM); |
|
|
|
ret = avcodec_parameters_to_context(avctx, ic->streams[stream_index]->codecpar); |
|
if (ret < 0) |
|
goto fail; |
|
av_codec_set_pkt_timebase(avctx, ic->streams[stream_index]->time_base); |
|
|
|
codec = avcodec_find_decoder(avctx->codec_id); |
|
|
|
switch(avctx->codec_type){ |
|
case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; forced_codec_name = audio_codec_name; break; |
|
case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break; |
|
case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; forced_codec_name = video_codec_name; break; |
|
} |
|
if (forced_codec_name) |
|
codec = avcodec_find_decoder_by_name(forced_codec_name); |
|
if (!codec) { |
|
if (forced_codec_name) av_log(NULL, AV_LOG_WARNING, |
|
"No codec could be found with name '%s'\n", forced_codec_name); |
|
else av_log(NULL, AV_LOG_WARNING, |
|
"No codec could be found with id %d\n", avctx->codec_id); |
|
ret = AVERROR(EINVAL); |
|
goto fail; |
|
} |
|
|
|
avctx->codec_id = codec->id; |
|
if(stream_lowres > av_codec_get_max_lowres(codec)){ |
|
av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n", |
|
av_codec_get_max_lowres(codec)); |
|
stream_lowres = av_codec_get_max_lowres(codec); |
|
} |
|
av_codec_set_lowres(avctx, stream_lowres); |
|
|
|
#if FF_API_EMU_EDGE |
|
if(stream_lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE; |
|
#endif |
|
if (fast) |
|
avctx->flags2 |= AV_CODEC_FLAG2_FAST; |
|
#if FF_API_EMU_EDGE |
|
if(codec->capabilities & AV_CODEC_CAP_DR1) |
|
avctx->flags |= CODEC_FLAG_EMU_EDGE; |
|
#endif |
|
|
|
opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec); |
|
if (!av_dict_get(opts, "threads", NULL, 0)) |
|
av_dict_set(&opts, "threads", "auto", 0); |
|
if (stream_lowres) |
|
av_dict_set_int(&opts, "lowres", stream_lowres, 0); |
|
if (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO) |
|
av_dict_set(&opts, "refcounted_frames", "1", 0); |
|
if ((ret = avcodec_open2(avctx, codec, &opts)) < 0) { |
|
goto fail; |
|
} |
|
if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { |
|
av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); |
|
ret = AVERROR_OPTION_NOT_FOUND; |
|
goto fail; |
|
} |
|
|
|
is->eof = 0; |
|
ic->streams[stream_index]->discard = AVDISCARD_DEFAULT; |
|
switch (avctx->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
#if CONFIG_AVFILTER |
|
{ |
|
AVFilterLink *link; |
|
|
|
is->audio_filter_src.freq = avctx->sample_rate; |
|
is->audio_filter_src.channels = avctx->channels; |
|
is->audio_filter_src.channel_layout = get_valid_channel_layout(avctx->channel_layout, avctx->channels); |
|
is->audio_filter_src.fmt = avctx->sample_fmt; |
|
if ((ret = configure_audio_filters(is, afilters, 0)) < 0) |
|
goto fail; |
|
link = is->out_audio_filter->inputs[0]; |
|
sample_rate = link->sample_rate; |
|
nb_channels = avfilter_link_get_channels(link); |
|
channel_layout = link->channel_layout; |
|
} |
|
#else |
|
sample_rate = avctx->sample_rate; |
|
nb_channels = avctx->channels; |
|
channel_layout = avctx->channel_layout; |
|
#endif |
|
|
|
/* prepare audio output */ |
|
if ((ret = audio_open(is, channel_layout, nb_channels, sample_rate, &is->audio_tgt)) < 0) |
|
goto fail; |
|
is->audio_hw_buf_size = ret; |
|
is->audio_src = is->audio_tgt; |
|
is->audio_buf_size = 0; |
|
is->audio_buf_index = 0; |
|
|
|
/* init averaging filter */ |
|
is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB); |
|
is->audio_diff_avg_count = 0; |
|
/* since we do not have a precise anough audio FIFO fullness, |
|
we correct audio sync only if larger than this threshold */ |
|
is->audio_diff_threshold = (double)(is->audio_hw_buf_size) / is->audio_tgt.bytes_per_sec; |
|
|
|
is->audio_stream = stream_index; |
|
is->audio_st = ic->streams[stream_index]; |
|
|
|
decoder_init(&is->auddec, avctx, &is->audioq, is->continue_read_thread); |
|
if ((is->ic->iformat->flags & (AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK)) && !is->ic->iformat->read_seek) { |
|
is->auddec.start_pts = is->audio_st->start_time; |
|
is->auddec.start_pts_tb = is->audio_st->time_base; |
|
} |
|
if ((ret = decoder_start(&is->auddec, audio_thread, is)) < 0) |
|
goto out; |
|
SDL_PauseAudio(0); |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
is->video_stream = stream_index; |
|
is->video_st = ic->streams[stream_index]; |
|
|
|
is->viddec_width = avctx->width; |
|
is->viddec_height = avctx->height; |
|
|
|
decoder_init(&is->viddec, avctx, &is->videoq, is->continue_read_thread); |
|
if ((ret = decoder_start(&is->viddec, video_thread, is)) < 0) |
|
goto out; |
|
is->queue_attachments_req = 1; |
|
break; |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
is->subtitle_stream = stream_index; |
|
is->subtitle_st = ic->streams[stream_index]; |
|
|
|
decoder_init(&is->subdec, avctx, &is->subtitleq, is->continue_read_thread); |
|
if ((ret = decoder_start(&is->subdec, subtitle_thread, is)) < 0) |
|
goto out; |
|
break; |
|
default: |
|
break; |
|
} |
|
goto out; |
|
|
|
fail: |
|
avcodec_free_context(&avctx); |
|
out: |
|
av_dict_free(&opts); |
|
|
|
return ret; |
|
} |
|
|
|
static int decode_interrupt_cb(void *ctx) |
|
{ |
|
VideoState *is = ctx; |
|
return is->abort_request; |
|
} |
|
|
|
static int stream_has_enough_packets(AVStream *st, int stream_id, PacketQueue *queue) { |
|
return stream_id < 0 || |
|
queue->abort_request || |
|
(st->disposition & AV_DISPOSITION_ATTACHED_PIC) || |
|
queue->nb_packets > MIN_FRAMES && (!queue->duration || av_q2d(st->time_base) * queue->duration > 1.0); |
|
} |
|
|
|
static int is_realtime(AVFormatContext *s) |
|
{ |
|
if( !strcmp(s->iformat->name, "rtp") |
|
|| !strcmp(s->iformat->name, "rtsp") |
|
|| !strcmp(s->iformat->name, "sdp") |
|
) |
|
return 1; |
|
|
|
if(s->pb && ( !strncmp(s->filename, "rtp:", 4) |
|
|| !strncmp(s->filename, "udp:", 4) |
|
) |
|
) |
|
return 1; |
|
return 0; |
|
} |
|
|
|
/* this thread gets the stream from the disk or the network */ |
|
static int read_thread(void *arg) |
|
{ |
|
VideoState *is = arg; |
|
AVFormatContext *ic = NULL; |
|
int err, i, ret; |
|
int st_index[AVMEDIA_TYPE_NB]; |
|
AVPacket pkt1, *pkt = &pkt1; |
|
int64_t stream_start_time; |
|
int pkt_in_play_range = 0; |
|
AVDictionaryEntry *t; |
|
AVDictionary **opts; |
|
int orig_nb_streams; |
|
SDL_mutex *wait_mutex = SDL_CreateMutex(); |
|
int scan_all_pmts_set = 0; |
|
int64_t pkt_ts; |
|
|
|
if (!wait_mutex) { |
|
av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
|
|
memset(st_index, -1, sizeof(st_index)); |
|
is->last_video_stream = is->video_stream = -1; |
|
is->last_audio_stream = is->audio_stream = -1; |
|
is->last_subtitle_stream = is->subtitle_stream = -1; |
|
is->eof = 0; |
|
|
|
ic = avformat_alloc_context(); |
|
if (!ic) { |
|
av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n"); |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
ic->interrupt_callback.callback = decode_interrupt_cb; |
|
ic->interrupt_callback.opaque = is; |
|
if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) { |
|
av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE); |
|
scan_all_pmts_set = 1; |
|
} |
|
err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts); |
|
if (err < 0) { |
|
print_error(is->filename, err); |
|
ret = -1; |
|
goto fail; |
|
} |
|
if (scan_all_pmts_set) |
|
av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE); |
|
|
|
if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { |
|
av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); |
|
ret = AVERROR_OPTION_NOT_FOUND; |
|
goto fail; |
|
} |
|
is->ic = ic; |
|
|
|
if (genpts) |
|
ic->flags |= AVFMT_FLAG_GENPTS; |
|
|
|
av_format_inject_global_side_data(ic); |
|
|
|
opts = setup_find_stream_info_opts(ic, codec_opts); |
|
orig_nb_streams = ic->nb_streams; |
|
|
|
err = avformat_find_stream_info(ic, opts); |
|
|
|
for (i = 0; i < orig_nb_streams; i++) |
|
av_dict_free(&opts[i]); |
|
av_freep(&opts); |
|
|
|
if (err < 0) { |
|
av_log(NULL, AV_LOG_WARNING, |
|
"%s: could not find codec parameters\n", is->filename); |
|
ret = -1; |
|
goto fail; |
|
} |
|
|
|
if (ic->pb) |
|
ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use avio_feof() to test for the end |
|
|
|
if (seek_by_bytes < 0) |
|
seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp("ogg", ic->iformat->name); |
|
|
|
is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0; |
|
|
|
if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0))) |
|
window_title = av_asprintf("%s - %s", t->value, input_filename); |
|
|
|
/* if seeking requested, we execute it */ |
|
if (start_time != AV_NOPTS_VALUE) { |
|
int64_t timestamp; |
|
|
|
timestamp = start_time; |
|
/* add the stream start time */ |
|
if (ic->start_time != AV_NOPTS_VALUE) |
|
timestamp += ic->start_time; |
|
ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0); |
|
if (ret < 0) { |
|
av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n", |
|
is->filename, (double)timestamp / AV_TIME_BASE); |
|
} |
|
} |
|
|
|
is->realtime = is_realtime(ic); |
|
|
|
if (show_status) |
|
av_dump_format(ic, 0, is->filename, 0); |
|
|
|
for (i = 0; i < ic->nb_streams; i++) { |
|
AVStream *st = ic->streams[i]; |
|
enum AVMediaType type = st->codecpar->codec_type; |
|
st->discard = AVDISCARD_ALL; |
|
if (type >= 0 && wanted_stream_spec[type] && st_index[type] == -1) |
|
if (avformat_match_stream_specifier(ic, st, wanted_stream_spec[type]) > 0) |
|
st_index[type] = i; |
|
} |
|
for (i = 0; i < AVMEDIA_TYPE_NB; i++) { |
|
if (wanted_stream_spec[i] && st_index[i] == -1) { |
|
av_log(NULL, AV_LOG_ERROR, "Stream specifier %s does not match any %s stream\n", wanted_stream_spec[i], av_get_media_type_string(i)); |
|
st_index[i] = INT_MAX; |
|
} |
|
} |
|
|
|
if (!video_disable) |
|
st_index[AVMEDIA_TYPE_VIDEO] = |
|
av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO, |
|
st_index[AVMEDIA_TYPE_VIDEO], -1, NULL, 0); |
|
if (!audio_disable) |
|
st_index[AVMEDIA_TYPE_AUDIO] = |
|
av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, |
|
st_index[AVMEDIA_TYPE_AUDIO], |
|
st_index[AVMEDIA_TYPE_VIDEO], |
|
NULL, 0); |
|
if (!video_disable && !subtitle_disable) |
|
st_index[AVMEDIA_TYPE_SUBTITLE] = |
|
av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE, |
|
st_index[AVMEDIA_TYPE_SUBTITLE], |
|
(st_index[AVMEDIA_TYPE_AUDIO] >= 0 ? |
|
st_index[AVMEDIA_TYPE_AUDIO] : |
|
st_index[AVMEDIA_TYPE_VIDEO]), |
|
NULL, 0); |
|
|
|
is->show_mode = show_mode; |
|
if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { |
|
AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]]; |
|
AVCodecParameters *codecpar = st->codecpar; |
|
AVRational sar = av_guess_sample_aspect_ratio(ic, st, NULL); |
|
if (codecpar->width) |
|
set_default_window_size(codecpar->width, codecpar->height, sar); |
|
} |
|
|
|
/* open the streams */ |
|
if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) { |
|
stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]); |
|
} |
|
|
|
ret = -1; |
|
if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { |
|
ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]); |
|
} |
|
if (is->show_mode == SHOW_MODE_NONE) |
|
is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT; |
|
|
|
if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) { |
|
stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]); |
|
} |
|
|
|
if (is->video_stream < 0 && is->audio_stream < 0) { |
|
av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n", |
|
is->filename); |
|
ret = -1; |
|
goto fail; |
|
} |
|
|
|
if (infinite_buffer < 0 && is->realtime) |
|
infinite_buffer = 1; |
|
|
|
for (;;) { |
|
if (is->abort_request) |
|
break; |
|
if (is->paused != is->last_paused) { |
|
is->last_paused = is->paused; |
|
if (is->paused) |
|
is->read_pause_return = av_read_pause(ic); |
|
else |
|
av_read_play(ic); |
|
} |
|
#if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL |
|
if (is->paused && |
|
(!strcmp(ic->iformat->name, "rtsp") || |
|
(ic->pb && !strncmp(input_filename, "mmsh:", 5)))) { |
|
/* wait 10 ms to avoid trying to get another packet */ |
|
/* XXX: horrible */ |
|
SDL_Delay(10); |
|
continue; |
|
} |
|
#endif |
|
if (is->seek_req) { |
|
int64_t seek_target = is->seek_pos; |
|
int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN; |
|
int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX; |
|
// FIXME the +-2 is due to rounding being not done in the correct direction in generation |
|
// of the seek_pos/seek_rel variables |
|
|
|
ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags); |
|
if (ret < 0) { |
|
av_log(NULL, AV_LOG_ERROR, |
|
"%s: error while seeking\n", is->ic->filename); |
|
} else { |
|
if (is->audio_stream >= 0) { |
|
packet_queue_flush(&is->audioq); |
|
packet_queue_put(&is->audioq, &flush_pkt); |
|
} |
|
if (is->subtitle_stream >= 0) { |
|
packet_queue_flush(&is->subtitleq); |
|
packet_queue_put(&is->subtitleq, &flush_pkt); |
|
} |
|
if (is->video_stream >= 0) { |
|
packet_queue_flush(&is->videoq); |
|
packet_queue_put(&is->videoq, &flush_pkt); |
|
} |
|
if (is->seek_flags & AVSEEK_FLAG_BYTE) { |
|
set_clock(&is->extclk, NAN, 0); |
|
} else { |
|
set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0); |
|
} |
|
} |
|
is->seek_req = 0; |
|
is->queue_attachments_req = 1; |
|
is->eof = 0; |
|
if (is->paused) |
|
step_to_next_frame(is); |
|
} |
|
if (is->queue_attachments_req) { |
|
if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) { |
|
AVPacket copy; |
|
if ((ret = av_copy_packet(©, &is->video_st->attached_pic)) < 0) |
|
goto fail; |
|
packet_queue_put(&is->videoq, ©); |
|
packet_queue_put_nullpacket(&is->videoq, is->video_stream); |
|
} |
|
is->queue_attachments_req = 0; |
|
} |
|
|
|
/* if the queue are full, no need to read more */ |
|
if (infinite_buffer<1 && |
|
(is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE |
|
|| (stream_has_enough_packets(is->audio_st, is->audio_stream, &is->audioq) && |
|
stream_has_enough_packets(is->video_st, is->video_stream, &is->videoq) && |
|
stream_has_enough_packets(is->subtitle_st, is->subtitle_stream, &is->subtitleq)))) { |
|
/* wait 10 ms */ |
|
SDL_LockMutex(wait_mutex); |
|
SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); |
|
SDL_UnlockMutex(wait_mutex); |
|
continue; |
|
} |
|
if (!is->paused && |
|
(!is->audio_st || (is->auddec.finished == is->audioq.serial && frame_queue_nb_remaining(&is->sampq) == 0)) && |
|
(!is->video_st || (is->viddec.finished == is->videoq.serial && frame_queue_nb_remaining(&is->pictq) == 0))) { |
|
if (loop != 1 && (!loop || --loop)) { |
|
stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0); |
|
} else if (autoexit) { |
|
ret = AVERROR_EOF; |
|
goto fail; |
|
} |
|
} |
|
ret = av_read_frame(ic, pkt); |
|
if (ret < 0) { |
|
if ((ret == AVERROR_EOF || avio_feof(ic->pb)) && !is->eof) { |
|
if (is->video_stream >= 0) |
|
packet_queue_put_nullpacket(&is->videoq, is->video_stream); |
|
if (is->audio_stream >= 0) |
|
packet_queue_put_nullpacket(&is->audioq, is->audio_stream); |
|
if (is->subtitle_stream >= 0) |
|
packet_queue_put_nullpacket(&is->subtitleq, is->subtitle_stream); |
|
is->eof = 1; |
|
} |
|
if (ic->pb && ic->pb->error) |
|
break; |
|
SDL_LockMutex(wait_mutex); |
|
SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); |
|
SDL_UnlockMutex(wait_mutex); |
|
continue; |
|
} else { |
|
is->eof = 0; |
|
} |
|
/* check if packet is in play range specified by user, then queue, otherwise discard */ |
|
stream_start_time = ic->streams[pkt->stream_index]->start_time; |
|
pkt_ts = pkt->pts == AV_NOPTS_VALUE ? pkt->dts : pkt->pts; |
|
pkt_in_play_range = duration == AV_NOPTS_VALUE || |
|
(pkt_ts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) * |
|
av_q2d(ic->streams[pkt->stream_index]->time_base) - |
|
(double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000 |
|
<= ((double)duration / 1000000); |
|
if (pkt->stream_index == is->audio_stream && pkt_in_play_range) { |
|
packet_queue_put(&is->audioq, pkt); |
|
} else if (pkt->stream_index == is->video_stream && pkt_in_play_range |
|
&& !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) { |
|
packet_queue_put(&is->videoq, pkt); |
|
} else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) { |
|
packet_queue_put(&is->subtitleq, pkt); |
|
} else { |
|
av_packet_unref(pkt); |
|
} |
|
} |
|
|
|
ret = 0; |
|
fail: |
|
if (ic && !is->ic) |
|
avformat_close_input(&ic); |
|
|
|
if (ret != 0) { |
|
SDL_Event event; |
|
|
|
event.type = FF_QUIT_EVENT; |
|
event.user.data1 = is; |
|
SDL_PushEvent(&event); |
|
} |
|
SDL_DestroyMutex(wait_mutex); |
|
return 0; |
|
} |
|
|
|
static VideoState *stream_open(const char *filename, AVInputFormat *iformat) |
|
{ |
|
VideoState *is; |
|
|
|
is = av_mallocz(sizeof(VideoState)); |
|
if (!is) |
|
return NULL; |
|
is->filename = av_strdup(filename); |
|
if (!is->filename) |
|
goto fail; |
|
is->iformat = iformat; |
|
is->ytop = 0; |
|
is->xleft = 0; |
|
|
|
/* start video display */ |
|
if (frame_queue_init(&is->pictq, &is->videoq, VIDEO_PICTURE_QUEUE_SIZE, 1) < 0) |
|
goto fail; |
|
if (frame_queue_init(&is->subpq, &is->subtitleq, SUBPICTURE_QUEUE_SIZE, 0) < 0) |
|
goto fail; |
|
if (frame_queue_init(&is->sampq, &is->audioq, SAMPLE_QUEUE_SIZE, 1) < 0) |
|
goto fail; |
|
|
|
if (packet_queue_init(&is->videoq) < 0 || |
|
packet_queue_init(&is->audioq) < 0 || |
|
packet_queue_init(&is->subtitleq) < 0) |
|
goto fail; |
|
|
|
if (!(is->continue_read_thread = SDL_CreateCond())) { |
|
av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); |
|
goto fail; |
|
} |
|
|
|
init_clock(&is->vidclk, &is->videoq.serial); |
|
init_clock(&is->audclk, &is->audioq.serial); |
|
init_clock(&is->extclk, &is->extclk.serial); |
|
is->audio_clock_serial = -1; |
|
is->audio_volume = SDL_MIX_MAXVOLUME; |
|
is->muted = 0; |
|
is->av_sync_type = av_sync_type; |
|
is->read_tid = SDL_CreateThread(read_thread, is); |
|
if (!is->read_tid) { |
|
av_log(NULL, AV_LOG_FATAL, "SDL_CreateThread(): %s\n", SDL_GetError()); |
|
fail: |
|
stream_close(is); |
|
return NULL; |
|
} |
|
return is; |
|
} |
|
|
|
static void stream_cycle_channel(VideoState *is, int codec_type) |
|
{ |
|
AVFormatContext *ic = is->ic; |
|
int start_index, stream_index; |
|
int old_index; |
|
AVStream *st; |
|
AVProgram *p = NULL; |
|
int nb_streams = is->ic->nb_streams; |
|
|
|
if (codec_type == AVMEDIA_TYPE_VIDEO) { |
|
start_index = is->last_video_stream; |
|
old_index = is->video_stream; |
|
} else if (codec_type == AVMEDIA_TYPE_AUDIO) { |
|
start_index = is->last_audio_stream; |
|
old_index = is->audio_stream; |
|
} else { |
|
start_index = is->last_subtitle_stream; |
|
old_index = is->subtitle_stream; |
|
} |
|
stream_index = start_index; |
|
|
|
if (codec_type != AVMEDIA_TYPE_VIDEO && is->video_stream != -1) { |
|
p = av_find_program_from_stream(ic, NULL, is->video_stream); |
|
if (p) { |
|
nb_streams = p->nb_stream_indexes; |
|
for (start_index = 0; start_index < nb_streams; start_index++) |
|
if (p->stream_index[start_index] == stream_index) |
|
break; |
|
if (start_index == nb_streams) |
|
start_index = -1; |
|
stream_index = start_index; |
|
} |
|
} |
|
|
|
for (;;) { |
|
if (++stream_index >= nb_streams) |
|
{ |
|
if (codec_type == AVMEDIA_TYPE_SUBTITLE) |
|
{ |
|
stream_index = -1; |
|
is->last_subtitle_stream = -1; |
|
goto the_end; |
|
} |
|
if (start_index == -1) |
|
return; |
|
stream_index = 0; |
|
} |
|
if (stream_index == start_index) |
|
return; |
|
st = is->ic->streams[p ? p->stream_index[stream_index] : stream_index]; |
|
if (st->codecpar->codec_type == codec_type) { |
|
/* check that parameters are OK */ |
|
switch (codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
if (st->codecpar->sample_rate != 0 && |
|
st->codecpar->channels != 0) |
|
goto the_end; |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
goto the_end; |
|
default: |
|
break; |
|
} |
|
} |
|
} |
|
the_end: |
|
if (p && stream_index != -1) |
|
stream_index = p->stream_index[stream_index]; |
|
av_log(NULL, AV_LOG_INFO, "Switch %s stream from #%d to #%d\n", |
|
av_get_media_type_string(codec_type), |
|
old_index, |
|
stream_index); |
|
|
|
stream_component_close(is, old_index); |
|
stream_component_open(is, stream_index); |
|
} |
|
|
|
|
|
static void toggle_full_screen(VideoState *is) |
|
{ |
|
#if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14) |
|
/* OS X needs to reallocate the SDL overlays */ |
|
int i; |
|
for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) |
|
is->pictq.queue[i].reallocate = 1; |
|
#endif |
|
is_full_screen = !is_full_screen; |
|
video_open(is, 1, NULL); |
|
} |
|
|
|
static void toggle_audio_display(VideoState *is) |
|
{ |
|
int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); |
|
int next = is->show_mode; |
|
do { |
|
next = (next + 1) % SHOW_MODE_NB; |
|
} while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st)); |
|
if (is->show_mode != next) { |
|
fill_rectangle(screen, |
|
is->xleft, is->ytop, is->width, is->height, |
|
bgcolor, 1); |
|
is->force_refresh = 1; |
|
is->show_mode = next; |
|
} |
|
} |
|
|
|
static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) { |
|
double remaining_time = 0.0; |
|
SDL_PumpEvents(); |
|
while (!SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) { |
|
if (!cursor_hidden && av_gettime_relative() - cursor_last_shown > CURSOR_HIDE_DELAY) { |
|
SDL_ShowCursor(0); |
|
cursor_hidden = 1; |
|
} |
|
if (remaining_time > 0.0) |
|
av_usleep((int64_t)(remaining_time * 1000000.0)); |
|
remaining_time = REFRESH_RATE; |
|
if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh)) |
|
video_refresh(is, &remaining_time); |
|
SDL_PumpEvents(); |
|
} |
|
} |
|
|
|
static void seek_chapter(VideoState *is, int incr) |
|
{ |
|
int64_t pos = get_master_clock(is) * AV_TIME_BASE; |
|
int i; |
|
|
|
if (!is->ic->nb_chapters) |
|
return; |
|
|
|
/* find the current chapter */ |
|
for (i = 0; i < is->ic->nb_chapters; i++) { |
|
AVChapter *ch = is->ic->chapters[i]; |
|
if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) { |
|
i--; |
|
break; |
|
} |
|
} |
|
|
|
i += incr; |
|
i = FFMAX(i, 0); |
|
if (i >= is->ic->nb_chapters) |
|
return; |
|
|
|
av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i); |
|
stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base, |
|
AV_TIME_BASE_Q), 0, 0); |
|
} |
|
|
|
/* handle an event sent by the GUI */ |
|
static void event_loop(VideoState *cur_stream) |
|
{ |
|
SDL_Event event; |
|
double incr, pos, frac; |
|
|
|
for (;;) { |
|
double x; |
|
refresh_loop_wait_event(cur_stream, &event); |
|
switch (event.type) { |
|
case SDL_KEYDOWN: |
|
if (exit_on_keydown) { |
|
do_exit(cur_stream); |
|
break; |
|
} |
|
switch (event.key.keysym.sym) { |
|
case SDLK_ESCAPE: |
|
case SDLK_q: |
|
do_exit(cur_stream); |
|
break; |
|
case SDLK_f: |
|
toggle_full_screen(cur_stream); |
|
cur_stream->force_refresh = 1; |
|
break; |
|
case SDLK_p: |
|
case SDLK_SPACE: |
|
toggle_pause(cur_stream); |
|
break; |
|
case SDLK_m: |
|
toggle_mute(cur_stream); |
|
break; |
|
case SDLK_KP_MULTIPLY: |
|
case SDLK_0: |
|
update_volume(cur_stream, 1, SDL_VOLUME_STEP); |
|
break; |
|
case SDLK_KP_DIVIDE: |
|
case SDLK_9: |
|
update_volume(cur_stream, -1, SDL_VOLUME_STEP); |
|
break; |
|
case SDLK_s: // S: Step to next frame |
|
step_to_next_frame(cur_stream); |
|
break; |
|
case SDLK_a: |
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); |
|
break; |
|
case SDLK_v: |
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); |
|
break; |
|
case SDLK_c: |
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); |
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); |
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); |
|
break; |
|
case SDLK_t: |
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); |
|
break; |
|
case SDLK_w: |
|
#if CONFIG_AVFILTER |
|
if (cur_stream->show_mode == SHOW_MODE_VIDEO && cur_stream->vfilter_idx < nb_vfilters - 1) { |
|
if (++cur_stream->vfilter_idx >= nb_vfilters) |
|
cur_stream->vfilter_idx = 0; |
|
} else { |
|
cur_stream->vfilter_idx = 0; |
|
toggle_audio_display(cur_stream); |
|
} |
|
#else |
|
toggle_audio_display(cur_stream); |
|
#endif |
|
break; |
|
case SDLK_PAGEUP: |
|
if (cur_stream->ic->nb_chapters <= 1) { |
|
incr = 600.0; |
|
goto do_seek; |
|
} |
|
seek_chapter(cur_stream, 1); |
|
break; |
|
case SDLK_PAGEDOWN: |
|
if (cur_stream->ic->nb_chapters <= 1) { |
|
incr = -600.0; |
|
goto do_seek; |
|
} |
|
seek_chapter(cur_stream, -1); |
|
break; |
|
case SDLK_LEFT: |
|
incr = -10.0; |
|
goto do_seek; |
|
case SDLK_RIGHT: |
|
incr = 10.0; |
|
goto do_seek; |
|
case SDLK_UP: |
|
incr = 60.0; |
|
goto do_seek; |
|
case SDLK_DOWN: |
|
incr = -60.0; |
|
do_seek: |
|
if (seek_by_bytes) { |
|
pos = -1; |
|
if (pos < 0 && cur_stream->video_stream >= 0) |
|
pos = frame_queue_last_pos(&cur_stream->pictq); |
|
if (pos < 0 && cur_stream->audio_stream >= 0) |
|
pos = frame_queue_last_pos(&cur_stream->sampq); |
|
if (pos < 0) |
|
pos = avio_tell(cur_stream->ic->pb); |
|
if (cur_stream->ic->bit_rate) |
|
incr *= cur_stream->ic->bit_rate / 8.0; |
|
else |
|
incr *= 180000.0; |
|
pos += incr; |
|
stream_seek(cur_stream, pos, incr, 1); |
|
} else { |
|
pos = get_master_clock(cur_stream); |
|
if (isnan(pos)) |
|
pos = (double)cur_stream->seek_pos / AV_TIME_BASE; |
|
pos += incr; |
|
if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE) |
|
pos = cur_stream->ic->start_time / (double)AV_TIME_BASE; |
|
stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0); |
|
} |
|
break; |
|
default: |
|
break; |
|
} |
|
break; |
|
case SDL_VIDEOEXPOSE: |
|
cur_stream->force_refresh = 1; |
|
break; |
|
case SDL_MOUSEBUTTONDOWN: |
|
if (exit_on_mousedown) { |
|
do_exit(cur_stream); |
|
break; |
|
} |
|
if (event.button.button == SDL_BUTTON_LEFT) { |
|
static int64_t last_mouse_left_click = 0; |
|
if (av_gettime_relative() - last_mouse_left_click <= 500000) { |
|
toggle_full_screen(cur_stream); |
|
cur_stream->force_refresh = 1; |
|
last_mouse_left_click = 0; |
|
} else { |
|
last_mouse_left_click = av_gettime_relative(); |
|
} |
|
} |
|
case SDL_MOUSEMOTION: |
|
if (cursor_hidden) { |
|
SDL_ShowCursor(1); |
|
cursor_hidden = 0; |
|
} |
|
cursor_last_shown = av_gettime_relative(); |
|
if (event.type == SDL_MOUSEBUTTONDOWN) { |
|
if (event.button.button != SDL_BUTTON_RIGHT) |
|
break; |
|
x = event.button.x; |
|
} else { |
|
if (!(event.motion.state & SDL_BUTTON_RMASK)) |
|
break; |
|
x = event.motion.x; |
|
} |
|
if (seek_by_bytes || cur_stream->ic->duration <= 0) { |
|
uint64_t size = avio_size(cur_stream->ic->pb); |
|
stream_seek(cur_stream, size*x/cur_stream->width, 0, 1); |
|
} else { |
|
int64_t ts; |
|
int ns, hh, mm, ss; |
|
int tns, thh, tmm, tss; |
|
tns = cur_stream->ic->duration / 1000000LL; |
|
thh = tns / 3600; |
|
tmm = (tns % 3600) / 60; |
|
tss = (tns % 60); |
|
frac = x / cur_stream->width; |
|
ns = frac * tns; |
|
hh = ns / 3600; |
|
mm = (ns % 3600) / 60; |
|
ss = (ns % 60); |
|
av_log(NULL, AV_LOG_INFO, |
|
"Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100, |
|
hh, mm, ss, thh, tmm, tss); |
|
ts = frac * cur_stream->ic->duration; |
|
if (cur_stream->ic->start_time != AV_NOPTS_VALUE) |
|
ts += cur_stream->ic->start_time; |
|
stream_seek(cur_stream, ts, 0, 0); |
|
} |
|
break; |
|
case SDL_VIDEORESIZE: |
|
screen = SDL_SetVideoMode(FFMIN(16383, event.resize.w), event.resize.h, 0, |
|
SDL_HWSURFACE|(is_full_screen?SDL_FULLSCREEN:SDL_RESIZABLE)|SDL_ASYNCBLIT|SDL_HWACCEL); |
|
if (!screen) { |
|
av_log(NULL, AV_LOG_FATAL, "Failed to set video mode\n"); |
|
do_exit(cur_stream); |
|
} |
|
screen_width = cur_stream->width = screen->w; |
|
screen_height = cur_stream->height = screen->h; |
|
cur_stream->force_refresh = 1; |
|
break; |
|
case SDL_QUIT: |
|
case FF_QUIT_EVENT: |
|
do_exit(cur_stream); |
|
break; |
|
case FF_ALLOC_EVENT: |
|
alloc_picture(event.user.data1); |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
} |
|
|
|
static int opt_frame_size(void *optctx, const char *opt, const char *arg) |
|
{ |
|
av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n"); |
|
return opt_default(NULL, "video_size", arg); |
|
} |
|
|
|
static int opt_width(void *optctx, const char *opt, const char *arg) |
|
{ |
|
screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); |
|
return 0; |
|
} |
|
|
|
static int opt_height(void *optctx, const char *opt, const char *arg) |
|
{ |
|
screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); |
|
return 0; |
|
} |
|
|
|
static int opt_format(void *optctx, const char *opt, const char *arg) |
|
{ |
|
file_iformat = av_find_input_format(arg); |
|
if (!file_iformat) { |
|
av_log(NULL, AV_LOG_FATAL, "Unknown input format: %s\n", arg); |
|
return AVERROR(EINVAL); |
|
} |
|
return 0; |
|
} |
|
|
|
static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg) |
|
{ |
|
av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n"); |
|
return opt_default(NULL, "pixel_format", arg); |
|
} |
|
|
|
static int opt_sync(void *optctx, const char *opt, const char *arg) |
|
{ |
|
if (!strcmp(arg, "audio")) |
|
av_sync_type = AV_SYNC_AUDIO_MASTER; |
|
else if (!strcmp(arg, "video")) |
|
av_sync_type = AV_SYNC_VIDEO_MASTER; |
|
else if (!strcmp(arg, "ext")) |
|
av_sync_type = AV_SYNC_EXTERNAL_CLOCK; |
|
else { |
|
av_log(NULL, AV_LOG_ERROR, "Unknown value for %s: %s\n", opt, arg); |
|
exit(1); |
|
} |
|
return 0; |
|
} |
|
|
|
static int opt_seek(void *optctx, const char *opt, const char *arg) |
|
{ |
|
start_time = parse_time_or_die(opt, arg, 1); |
|
return 0; |
|
} |
|
|
|
static int opt_duration(void *optctx, const char *opt, const char *arg) |
|
{ |
|
duration = parse_time_or_die(opt, arg, 1); |
|
return 0; |
|
} |
|
|
|
static int opt_show_mode(void *optctx, const char *opt, const char *arg) |
|
{ |
|
show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO : |
|
!strcmp(arg, "waves") ? SHOW_MODE_WAVES : |
|
!strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT : |
|
parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1); |
|
return 0; |
|
} |
|
|
|
static void opt_input_file(void *optctx, const char *filename) |
|
{ |
|
if (input_filename) { |
|
av_log(NULL, AV_LOG_FATAL, |
|
"Argument '%s' provided as input filename, but '%s' was already specified.\n", |
|
filename, input_filename); |
|
exit(1); |
|
} |
|
if (!strcmp(filename, "-")) |
|
filename = "pipe:"; |
|
input_filename = filename; |
|
} |
|
|
|
static int opt_codec(void *optctx, const char *opt, const char *arg) |
|
{ |
|
const char *spec = strchr(opt, ':'); |
|
if (!spec) { |
|
av_log(NULL, AV_LOG_ERROR, |
|
"No media specifier was specified in '%s' in option '%s'\n", |
|
arg, opt); |
|
return AVERROR(EINVAL); |
|
} |
|
spec++; |
|
switch (spec[0]) { |
|
case 'a' : audio_codec_name = arg; break; |
|
case 's' : subtitle_codec_name = arg; break; |
|
case 'v' : video_codec_name = arg; break; |
|
default: |
|
av_log(NULL, AV_LOG_ERROR, |
|
"Invalid media specifier '%s' in option '%s'\n", spec, opt); |
|
return AVERROR(EINVAL); |
|
} |
|
return 0; |
|
} |
|
|
|
static int dummy; |
|
|
|
static const OptionDef options[] = { |
|
#include "cmdutils_common_opts.h" |
|
{ "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" }, |
|
{ "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" }, |
|
{ "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" }, |
|
{ "fs", OPT_BOOL, { &is_full_screen }, "force full screen" }, |
|
{ "an", OPT_BOOL, { &audio_disable }, "disable audio" }, |
|
{ "vn", OPT_BOOL, { &video_disable }, "disable video" }, |
|
{ "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" }, |
|
{ "ast", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_specifier" }, |
|
{ "vst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_specifier" }, |
|
{ "sst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_specifier" }, |
|
{ "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" }, |
|
{ "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" }, |
|
{ "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" }, |
|
{ "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" }, |
|
{ "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" }, |
|
{ "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" }, |
|
{ "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" }, |
|
{ "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" }, |
|
{ "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" }, |
|
{ "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""}, |
|
{ "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" }, |
|
{ "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" }, |
|
{ "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" }, |
|
{ "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" }, |
|
{ "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" }, |
|
{ "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" }, |
|
{ "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" }, |
|
{ "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" }, |
|
{ "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" }, |
|
#if CONFIG_AVFILTER |
|
{ "vf", OPT_EXPERT | HAS_ARG, { .func_arg = opt_add_vfilter }, "set video filters", "filter_graph" }, |
|
{ "af", OPT_STRING | HAS_ARG, { &afilters }, "set audio filters", "filter_graph" }, |
|
#endif |
|
{ "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" }, |
|
{ "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" }, |
|
{ "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" }, |
|
{ "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"}, |
|
{ "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" }, |
|
{ "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &audio_codec_name }, "force audio decoder", "decoder_name" }, |
|
{ "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" }, |
|
{ "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &video_codec_name }, "force video decoder", "decoder_name" }, |
|
{ "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" }, |
|
{ NULL, }, |
|
}; |
|
|
|
static void show_usage(void) |
|
{ |
|
av_log(NULL, AV_LOG_INFO, "Simple media player\n"); |
|
av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name); |
|
av_log(NULL, AV_LOG_INFO, "\n"); |
|
} |
|
|
|
void show_help_default(const char *opt, const char *arg) |
|
{ |
|
av_log_set_callback(log_callback_help); |
|
show_usage(); |
|
show_help_options(options, "Main options:", 0, OPT_EXPERT, 0); |
|
show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0); |
|
printf("\n"); |
|
show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM); |
|
show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM); |
|
#if !CONFIG_AVFILTER |
|
show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM); |
|
#else |
|
show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM); |
|
#endif |
|
printf("\nWhile playing:\n" |
|
"q, ESC quit\n" |
|
"f toggle full screen\n" |
|
"p, SPC pause\n" |
|
"m toggle mute\n" |
|
"9, 0 decrease and increase volume respectively\n" |
|
"/, * decrease and increase volume respectively\n" |
|
"a cycle audio channel in the current program\n" |
|
"v cycle video channel\n" |
|
"t cycle subtitle channel in the current program\n" |
|
"c cycle program\n" |
|
"w cycle video filters or show modes\n" |
|
"s activate frame-step mode\n" |
|
"left/right seek backward/forward 10 seconds\n" |
|
"down/up seek backward/forward 1 minute\n" |
|
"page down/page up seek backward/forward 10 minutes\n" |
|
"right mouse click seek to percentage in file corresponding to fraction of width\n" |
|
"left double-click toggle full screen\n" |
|
); |
|
} |
|
|
|
static int lockmgr(void **mtx, enum AVLockOp op) |
|
{ |
|
switch(op) { |
|
case AV_LOCK_CREATE: |
|
*mtx = SDL_CreateMutex(); |
|
if(!*mtx) { |
|
av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); |
|
return 1; |
|
} |
|
return 0; |
|
case AV_LOCK_OBTAIN: |
|
return !!SDL_LockMutex(*mtx); |
|
case AV_LOCK_RELEASE: |
|
return !!SDL_UnlockMutex(*mtx); |
|
case AV_LOCK_DESTROY: |
|
SDL_DestroyMutex(*mtx); |
|
return 0; |
|
} |
|
return 1; |
|
} |
|
|
|
/* Called from the main */ |
|
int main(int argc, char **argv) |
|
{ |
|
int flags; |
|
VideoState *is; |
|
char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy"; |
|
char alsa_bufsize[] = "SDL_AUDIO_ALSA_SET_BUFFER_SIZE=1"; |
|
|
|
av_log_set_flags(AV_LOG_SKIP_REPEATED); |
|
parse_loglevel(argc, argv, options); |
|
|
|
/* register all codecs, demux and protocols */ |
|
#if CONFIG_AVDEVICE |
|
avdevice_register_all(); |
|
#endif |
|
#if CONFIG_AVFILTER |
|
avfilter_register_all(); |
|
#endif |
|
av_register_all(); |
|
avformat_network_init(); |
|
|
|
init_opts(); |
|
|
|
signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */ |
|
signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */ |
|
|
|
show_banner(argc, argv, options); |
|
|
|
parse_options(NULL, argc, argv, options, opt_input_file); |
|
|
|
if (!input_filename) { |
|
show_usage(); |
|
av_log(NULL, AV_LOG_FATAL, "An input file must be specified\n"); |
|
av_log(NULL, AV_LOG_FATAL, |
|
"Use -h to get full help or, even better, run 'man %s'\n", program_name); |
|
exit(1); |
|
} |
|
|
|
if (display_disable) { |
|
video_disable = 1; |
|
} |
|
flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER; |
|
if (audio_disable) |
|
flags &= ~SDL_INIT_AUDIO; |
|
else { |
|
/* Try to work around an occasional ALSA buffer underflow issue when the |
|
* period size is NPOT due to ALSA resampling by forcing the buffer size. */ |
|
if (!SDL_getenv("SDL_AUDIO_ALSA_SET_BUFFER_SIZE")) |
|
SDL_putenv(alsa_bufsize); |
|
} |
|
if (display_disable) |
|
SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */ |
|
#if !defined(_WIN32) && !defined(__APPLE__) |
|
flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */ |
|
#endif |
|
if (SDL_Init (flags)) { |
|
av_log(NULL, AV_LOG_FATAL, "Could not initialize SDL - %s\n", SDL_GetError()); |
|
av_log(NULL, AV_LOG_FATAL, "(Did you set the DISPLAY variable?)\n"); |
|
exit(1); |
|
} |
|
|
|
if (!display_disable) { |
|
const SDL_VideoInfo *vi = SDL_GetVideoInfo(); |
|
fs_screen_width = vi->current_w; |
|
fs_screen_height = vi->current_h; |
|
} |
|
|
|
SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE); |
|
SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE); |
|
SDL_EventState(SDL_USEREVENT, SDL_IGNORE); |
|
|
|
SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL); |
|
|
|
if (av_lockmgr_register(lockmgr)) { |
|
av_log(NULL, AV_LOG_FATAL, "Could not initialize lock manager!\n"); |
|
do_exit(NULL); |
|
} |
|
|
|
av_init_packet(&flush_pkt); |
|
flush_pkt.data = (uint8_t *)&flush_pkt; |
|
|
|
is = stream_open(input_filename, file_iformat); |
|
if (!is) { |
|
av_log(NULL, AV_LOG_FATAL, "Failed to initialize VideoState!\n"); |
|
do_exit(NULL); |
|
} |
|
|
|
event_loop(is); |
|
|
|
/* never returns */ |
|
|
|
return 0; |
|
}
|
|
|