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3146 lines
98 KiB
3146 lines
98 KiB
/* |
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* FFplay : Simple Media Player based on the FFmpeg libraries |
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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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#define _XOPEN_SOURCE 600 |
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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 "libavutil/avstring.h" |
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#include "libavutil/colorspace.h" |
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#include "libavutil/pixdesc.h" |
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#include "libavutil/imgutils.h" |
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#include "libavutil/parseutils.h" |
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#include "libavutil/samplefmt.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 "libavcodec/audioconvert.h" |
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#include "libavcodec/opt.h" |
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#include "libavcodec/avfft.h" |
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#if CONFIG_AVFILTER |
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# include "libavfilter/avfilter.h" |
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# include "libavfilter/avfiltergraph.h" |
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#endif |
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#include "cmdutils.h" |
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#include <SDL.h> |
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#include <SDL_thread.h> |
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|
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#ifdef __MINGW32__ |
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#undef main /* We don't want SDL to override our main() */ |
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#endif |
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#include <unistd.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 DEBUG |
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//#define DEBUG_SYNC |
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#define MAX_QUEUE_SIZE (15 * 1024 * 1024) |
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#define MIN_AUDIOQ_SIZE (20 * 16 * 1024) |
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#define MIN_FRAMES 5 |
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|
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/* SDL audio buffer size, in samples. Should be small to have precise |
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A/V sync as SDL does not have hardware buffer fullness info. */ |
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#define SDL_AUDIO_BUFFER_SIZE 1024 |
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|
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/* no AV sync correction is done if below the AV sync threshold */ |
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#define AV_SYNC_THRESHOLD 0.01 |
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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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#define FRAME_SKIP_FACTOR 0.05 |
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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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/* 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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|
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/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */ |
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#define SAMPLE_ARRAY_SIZE (2*65536) |
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static int sws_flags = SWS_BICUBIC; |
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typedef struct PacketQueue { |
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AVPacketList *first_pkt, *last_pkt; |
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int nb_packets; |
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int size; |
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int abort_request; |
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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 2 |
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#define SUBPICTURE_QUEUE_SIZE 4 |
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typedef struct VideoPicture { |
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double pts; ///<presentation time stamp for this picture |
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double target_clock; ///<av_gettime() time at which this should be displayed ideally |
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int64_t pos; ///<byte position in file |
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SDL_Overlay *bmp; |
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int width, height; /* source height & width */ |
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int allocated; |
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enum PixelFormat pix_fmt; |
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#if CONFIG_AVFILTER |
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AVFilterBufferRef *picref; |
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#endif |
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} VideoPicture; |
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typedef struct SubPicture { |
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double pts; /* presentation time stamp for this picture */ |
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AVSubtitle sub; |
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} SubPicture; |
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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 VideoState { |
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SDL_Thread *parse_tid; |
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SDL_Thread *video_tid; |
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SDL_Thread *refresh_tid; |
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AVInputFormat *iformat; |
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int no_background; |
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int abort_request; |
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int paused; |
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int last_paused; |
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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 dtg_active_format; |
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int audio_stream; |
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int av_sync_type; |
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double external_clock; /* external clock base */ |
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int64_t external_clock_time; |
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double audio_clock; |
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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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/* samples output by the codec. we reserve more space for avsync |
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compensation */ |
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DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]; |
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DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]; |
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uint8_t *audio_buf; |
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unsigned int audio_buf_size; /* in bytes */ |
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int audio_buf_index; /* in bytes */ |
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AVPacket audio_pkt_temp; |
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AVPacket audio_pkt; |
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enum AVSampleFormat audio_src_fmt; |
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AVAudioConvert *reformat_ctx; |
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int show_audio; /* if true, display audio samples */ |
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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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SDL_Thread *subtitle_tid; |
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int subtitle_stream; |
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int subtitle_stream_changed; |
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AVStream *subtitle_st; |
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PacketQueue subtitleq; |
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SubPicture subpq[SUBPICTURE_QUEUE_SIZE]; |
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int subpq_size, subpq_rindex, subpq_windex; |
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SDL_mutex *subpq_mutex; |
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SDL_cond *subpq_cond; |
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double frame_timer; |
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double frame_last_pts; |
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double frame_last_delay; |
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double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame |
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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 video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used) |
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double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts |
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int64_t video_current_pos; ///<current displayed file pos |
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VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE]; |
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int pictq_size, pictq_rindex, pictq_windex; |
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SDL_mutex *pictq_mutex; |
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SDL_cond *pictq_cond; |
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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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// QETimer *video_timer; |
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char filename[1024]; |
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int width, height, xleft, ytop; |
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#if CONFIG_AVFILTER |
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AVFilterContext *out_video_filter; ///<the last filter in the video chain |
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#endif |
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float skip_frames; |
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float skip_frames_index; |
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int refresh; |
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} VideoState; |
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static void show_help(void); |
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static int audio_write_get_buf_size(VideoState *is); |
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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 screen_width = 0; |
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static int screen_height = 0; |
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static int frame_width = 0; |
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static int frame_height = 0; |
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static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE; |
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static int audio_disable; |
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static int video_disable; |
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static int wanted_stream[AVMEDIA_TYPE_NB]={ |
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[AVMEDIA_TYPE_AUDIO]=-1, |
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[AVMEDIA_TYPE_VIDEO]=-1, |
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[AVMEDIA_TYPE_SUBTITLE]=-1, |
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}; |
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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 debug = 0; |
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static int debug_mv = 0; |
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static int step = 0; |
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static int thread_count = 1; |
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static int workaround_bugs = 1; |
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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 idct = FF_IDCT_AUTO; |
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static enum AVDiscard skip_frame= AVDISCARD_DEFAULT; |
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static enum AVDiscard skip_idct= AVDISCARD_DEFAULT; |
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static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT; |
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static int error_recognition = FF_ER_CAREFUL; |
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static int error_concealment = 3; |
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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 rdftspeed=20; |
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#if CONFIG_AVFILTER |
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static char *vfilters = NULL; |
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#endif |
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/* current context */ |
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static int is_full_screen; |
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static VideoState *cur_stream; |
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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_REFRESH_EVENT (SDL_USEREVENT + 1) |
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#define FF_QUIT_EVENT (SDL_USEREVENT + 2) |
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static SDL_Surface *screen; |
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static int packet_queue_put(PacketQueue *q, AVPacket *pkt); |
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/* packet queue handling */ |
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static void 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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q->cond = SDL_CreateCond(); |
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packet_queue_put(q, &flush_pkt); |
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} |
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static void packet_queue_flush(PacketQueue *q) |
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{ |
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AVPacketList *pkt, *pkt1; |
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SDL_LockMutex(q->mutex); |
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for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) { |
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pkt1 = pkt->next; |
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av_free_packet(&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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SDL_UnlockMutex(q->mutex); |
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} |
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static void packet_queue_end(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 int packet_queue_put(PacketQueue *q, AVPacket *pkt) |
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{ |
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AVPacketList *pkt1; |
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/* duplicate the packet */ |
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if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0) |
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return -1; |
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pkt1 = av_malloc(sizeof(AVPacketList)); |
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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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SDL_LockMutex(q->mutex); |
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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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/* XXX: should duplicate packet data in DV case */ |
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SDL_CondSignal(q->cond); |
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SDL_UnlockMutex(q->mutex); |
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return 0; |
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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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/* 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) |
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{ |
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AVPacketList *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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*pkt = pkt1->pkt; |
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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 inline void fill_rectangle(SDL_Surface *screen, |
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int x, int y, int w, int h, int color) |
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{ |
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SDL_Rect rect; |
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rect.x = x; |
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rect.y = y; |
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rect.w = w; |
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rect.h = h; |
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SDL_FillRect(screen, &rect, color); |
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} |
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#if 0 |
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/* draw only the border of a rectangle */ |
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void fill_border(VideoState *s, int x, int y, int w, int h, int color) |
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{ |
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int w1, w2, h1, h2; |
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|
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/* fill the background */ |
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w1 = x; |
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if (w1 < 0) |
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w1 = 0; |
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w2 = s->width - (x + w); |
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if (w2 < 0) |
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w2 = 0; |
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h1 = y; |
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if (h1 < 0) |
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h1 = 0; |
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h2 = s->height - (y + h); |
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if (h2 < 0) |
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h2 = 0; |
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fill_rectangle(screen, |
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s->xleft, s->ytop, |
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w1, s->height, |
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color); |
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fill_rectangle(screen, |
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s->xleft + s->width - w2, s->ytop, |
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w2, s->height, |
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color); |
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fill_rectangle(screen, |
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s->xleft + w1, s->ytop, |
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s->width - w1 - w2, h1, |
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color); |
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fill_rectangle(screen, |
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s->xleft + w1, s->ytop + s->height - h2, |
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s->width - w1 - w2, h2, |
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color); |
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} |
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#endif |
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#define ALPHA_BLEND(a, oldp, newp, s)\ |
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((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s)) |
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#define RGBA_IN(r, g, b, a, s)\ |
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{\ |
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unsigned int v = ((const uint32_t *)(s))[0];\ |
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a = (v >> 24) & 0xff;\ |
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r = (v >> 16) & 0xff;\ |
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g = (v >> 8) & 0xff;\ |
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b = v & 0xff;\ |
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} |
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#define YUVA_IN(y, u, v, a, s, pal)\ |
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{\ |
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unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\ |
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a = (val >> 24) & 0xff;\ |
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y = (val >> 16) & 0xff;\ |
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u = (val >> 8) & 0xff;\ |
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v = val & 0xff;\ |
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} |
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#define YUVA_OUT(d, y, u, v, a)\ |
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{\ |
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((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\ |
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} |
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#define BPP 1 |
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static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh) |
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{ |
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int wrap, wrap3, width2, skip2; |
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int y, u, v, a, u1, v1, a1, w, h; |
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uint8_t *lum, *cb, *cr; |
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const uint8_t *p; |
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const uint32_t *pal; |
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int dstx, dsty, dstw, dsth; |
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dstw = av_clip(rect->w, 0, imgw); |
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dsth = av_clip(rect->h, 0, imgh); |
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dstx = av_clip(rect->x, 0, imgw - dstw); |
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dsty = av_clip(rect->y, 0, imgh - dsth); |
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lum = dst->data[0] + dsty * dst->linesize[0]; |
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cb = dst->data[1] + (dsty >> 1) * dst->linesize[1]; |
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cr = dst->data[2] + (dsty >> 1) * dst->linesize[2]; |
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|
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width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1); |
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skip2 = dstx >> 1; |
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wrap = dst->linesize[0]; |
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wrap3 = rect->pict.linesize[0]; |
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p = rect->pict.data[0]; |
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pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */ |
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|
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if (dsty & 1) { |
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lum += dstx; |
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cb += skip2; |
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cr += skip2; |
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|
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if (dstx & 1) { |
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YUVA_IN(y, u, v, a, p, pal); |
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lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
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cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
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cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
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cb++; |
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cr++; |
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lum++; |
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p += BPP; |
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} |
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for(w = dstw - (dstx & 1); w >= 2; w -= 2) { |
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YUVA_IN(y, u, v, a, p, pal); |
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u1 = u; |
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v1 = v; |
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a1 = a; |
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lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
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|
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YUVA_IN(y, u, v, a, p + BPP, pal); |
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u1 += u; |
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v1 += v; |
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a1 += a; |
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lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
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cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
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cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
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cb++; |
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cr++; |
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p += 2 * BPP; |
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lum += 2; |
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} |
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if (w) { |
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YUVA_IN(y, u, v, a, p, pal); |
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lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
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cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
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cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
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p++; |
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lum++; |
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} |
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p += wrap3 - dstw * BPP; |
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lum += wrap - dstw - dstx; |
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cb += dst->linesize[1] - width2 - skip2; |
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cr += dst->linesize[2] - width2 - skip2; |
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} |
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for(h = dsth - (dsty & 1); h >= 2; h -= 2) { |
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lum += dstx; |
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cb += skip2; |
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cr += skip2; |
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|
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if (dstx & 1) { |
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YUVA_IN(y, u, v, a, p, pal); |
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u1 = u; |
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v1 = v; |
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a1 = a; |
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lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
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p += wrap3; |
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lum += wrap; |
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YUVA_IN(y, u, v, a, p, pal); |
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u1 += u; |
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v1 += v; |
|
a1 += a; |
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
|
cb++; |
|
cr++; |
|
p += -wrap3 + BPP; |
|
lum += -wrap + 1; |
|
} |
|
for(w = dstw - (dstx & 1); w >= 2; w -= 2) { |
|
YUVA_IN(y, u, v, a, p, pal); |
|
u1 = u; |
|
v1 = v; |
|
a1 = a; |
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
|
|
|
YUVA_IN(y, u, v, a, p + BPP, pal); |
|
u1 += u; |
|
v1 += v; |
|
a1 += a; |
|
lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
|
p += wrap3; |
|
lum += wrap; |
|
|
|
YUVA_IN(y, u, v, a, p, pal); |
|
u1 += u; |
|
v1 += v; |
|
a1 += a; |
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
|
|
|
YUVA_IN(y, u, v, a, p + BPP, pal); |
|
u1 += u; |
|
v1 += v; |
|
a1 += a; |
|
lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
|
|
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2); |
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2); |
|
|
|
cb++; |
|
cr++; |
|
p += -wrap3 + 2 * BPP; |
|
lum += -wrap + 2; |
|
} |
|
if (w) { |
|
YUVA_IN(y, u, v, a, p, pal); |
|
u1 = u; |
|
v1 = v; |
|
a1 = a; |
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
|
p += wrap3; |
|
lum += wrap; |
|
YUVA_IN(y, u, v, a, p, pal); |
|
u1 += u; |
|
v1 += v; |
|
a1 += a; |
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
|
cb++; |
|
cr++; |
|
p += -wrap3 + BPP; |
|
lum += -wrap + 1; |
|
} |
|
p += wrap3 + (wrap3 - dstw * BPP); |
|
lum += wrap + (wrap - dstw - dstx); |
|
cb += dst->linesize[1] - width2 - skip2; |
|
cr += dst->linesize[2] - width2 - skip2; |
|
} |
|
/* handle odd height */ |
|
if (h) { |
|
lum += dstx; |
|
cb += skip2; |
|
cr += skip2; |
|
|
|
if (dstx & 1) { |
|
YUVA_IN(y, u, v, a, p, pal); |
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
|
cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
|
cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
|
cb++; |
|
cr++; |
|
lum++; |
|
p += BPP; |
|
} |
|
for(w = dstw - (dstx & 1); w >= 2; w -= 2) { |
|
YUVA_IN(y, u, v, a, p, pal); |
|
u1 = u; |
|
v1 = v; |
|
a1 = a; |
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
|
|
|
YUVA_IN(y, u, v, a, p + BPP, pal); |
|
u1 += u; |
|
v1 += v; |
|
a1 += a; |
|
lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1); |
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1); |
|
cb++; |
|
cr++; |
|
p += 2 * BPP; |
|
lum += 2; |
|
} |
|
if (w) { |
|
YUVA_IN(y, u, v, a, p, pal); |
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
|
cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
|
cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
|
} |
|
} |
|
} |
|
|
|
static void free_subpicture(SubPicture *sp) |
|
{ |
|
avsubtitle_free(&sp->sub); |
|
} |
|
|
|
static void video_image_display(VideoState *is) |
|
{ |
|
VideoPicture *vp; |
|
SubPicture *sp; |
|
AVPicture pict; |
|
float aspect_ratio; |
|
int width, height, x, y; |
|
SDL_Rect rect; |
|
int i; |
|
|
|
vp = &is->pictq[is->pictq_rindex]; |
|
if (vp->bmp) { |
|
#if CONFIG_AVFILTER |
|
if (vp->picref->video->pixel_aspect.num == 0) |
|
aspect_ratio = 0; |
|
else |
|
aspect_ratio = av_q2d(vp->picref->video->pixel_aspect); |
|
#else |
|
|
|
/* XXX: use variable in the frame */ |
|
if (is->video_st->sample_aspect_ratio.num) |
|
aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio); |
|
else if (is->video_st->codec->sample_aspect_ratio.num) |
|
aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio); |
|
else |
|
aspect_ratio = 0; |
|
#endif |
|
if (aspect_ratio <= 0.0) |
|
aspect_ratio = 1.0; |
|
aspect_ratio *= (float)vp->width / (float)vp->height; |
|
|
|
if (is->subtitle_st) |
|
{ |
|
if (is->subpq_size > 0) |
|
{ |
|
sp = &is->subpq[is->subpq_rindex]; |
|
|
|
if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) |
|
{ |
|
SDL_LockYUVOverlay (vp->bmp); |
|
|
|
pict.data[0] = vp->bmp->pixels[0]; |
|
pict.data[1] = vp->bmp->pixels[2]; |
|
pict.data[2] = vp->bmp->pixels[1]; |
|
|
|
pict.linesize[0] = vp->bmp->pitches[0]; |
|
pict.linesize[1] = vp->bmp->pitches[2]; |
|
pict.linesize[2] = vp->bmp->pitches[1]; |
|
|
|
for (i = 0; i < sp->sub.num_rects; i++) |
|
blend_subrect(&pict, sp->sub.rects[i], |
|
vp->bmp->w, vp->bmp->h); |
|
|
|
SDL_UnlockYUVOverlay (vp->bmp); |
|
} |
|
} |
|
} |
|
|
|
|
|
/* XXX: we suppose the screen has a 1.0 pixel ratio */ |
|
height = is->height; |
|
width = ((int)rint(height * aspect_ratio)) & ~1; |
|
if (width > is->width) { |
|
width = is->width; |
|
height = ((int)rint(width / aspect_ratio)) & ~1; |
|
} |
|
x = (is->width - width) / 2; |
|
y = (is->height - height) / 2; |
|
if (!is->no_background) { |
|
/* fill the background */ |
|
// fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00)); |
|
} else { |
|
is->no_background = 0; |
|
} |
|
rect.x = is->xleft + x; |
|
rect.y = is->ytop + y; |
|
rect.w = width; |
|
rect.h = height; |
|
SDL_DisplayYUVOverlay(vp->bmp, &rect); |
|
} else { |
|
#if 0 |
|
fill_rectangle(screen, |
|
is->xleft, is->ytop, is->width, is->height, |
|
QERGB(0x00, 0x00, 0x00)); |
|
#endif |
|
} |
|
} |
|
|
|
static inline int compute_mod(int a, int b) |
|
{ |
|
a = a % b; |
|
if (a >= 0) |
|
return a; |
|
else |
|
return 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; |
|
int16_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_st->codec->channels; |
|
nb_display_channels = channels; |
|
if (!s->paused) { |
|
int data_used= s->show_audio==1 ? s->width : (2*nb_freq); |
|
n = 2 * channels; |
|
delay = audio_write_get_buf_size(s); |
|
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() - audio_callback_time; |
|
delay -= (time_diff * s->audio_st->codec->sample_rate) / 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_audio==1){ |
|
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_audio==1){ |
|
fill_rectangle(screen, |
|
s->xleft, s->ytop, s->width, s->height, |
|
bgcolor); |
|
|
|
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); |
|
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); |
|
} |
|
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(4*nb_freq*sizeof(*s->rdft_data)); |
|
} |
|
{ |
|
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 its more than fast enough |
|
for(y=0; y<s->height; y++){ |
|
double w= 1/sqrt(nb_freq); |
|
int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1])); |
|
int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0] |
|
+ data[1][2*y+1]*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); |
|
} |
|
} |
|
SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height); |
|
s->xpos++; |
|
if(s->xpos >= s->width) |
|
s->xpos= s->xleft; |
|
} |
|
} |
|
|
|
static int video_open(VideoState *is){ |
|
int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL; |
|
int w,h; |
|
|
|
if(is_full_screen) flags |= SDL_FULLSCREEN; |
|
else flags |= SDL_RESIZABLE; |
|
|
|
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; |
|
#if CONFIG_AVFILTER |
|
}else if (is->out_video_filter && is->out_video_filter->inputs[0]){ |
|
w = is->out_video_filter->inputs[0]->w; |
|
h = is->out_video_filter->inputs[0]->h; |
|
#else |
|
}else if (is->video_st && is->video_st->codec->width){ |
|
w = is->video_st->codec->width; |
|
h = is->video_st->codec->height; |
|
#endif |
|
} else { |
|
w = 640; |
|
h = 480; |
|
} |
|
if(screen && is->width == screen->w && screen->w == w |
|
&& is->height== screen->h && screen->h == h) |
|
return 0; |
|
|
|
#ifndef __APPLE__ |
|
screen = SDL_SetVideoMode(w, h, 0, flags); |
|
#else |
|
/* setting bits_per_pixel = 0 or 32 causes blank video on OS X */ |
|
screen = SDL_SetVideoMode(w, h, 24, flags); |
|
#endif |
|
if (!screen) { |
|
fprintf(stderr, "SDL: could not set video mode - exiting\n"); |
|
return -1; |
|
} |
|
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(cur_stream); |
|
if (is->audio_st && is->show_audio) |
|
video_audio_display(is); |
|
else if (is->video_st) |
|
video_image_display(is); |
|
} |
|
|
|
static int refresh_thread(void *opaque) |
|
{ |
|
VideoState *is= opaque; |
|
while(!is->abort_request){ |
|
SDL_Event event; |
|
event.type = FF_REFRESH_EVENT; |
|
event.user.data1 = opaque; |
|
if(!is->refresh){ |
|
is->refresh=1; |
|
SDL_PushEvent(&event); |
|
} |
|
usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly |
|
} |
|
return 0; |
|
} |
|
|
|
/* get the current audio clock value */ |
|
static double get_audio_clock(VideoState *is) |
|
{ |
|
double pts; |
|
int hw_buf_size, bytes_per_sec; |
|
pts = is->audio_clock; |
|
hw_buf_size = audio_write_get_buf_size(is); |
|
bytes_per_sec = 0; |
|
if (is->audio_st) { |
|
bytes_per_sec = is->audio_st->codec->sample_rate * |
|
2 * is->audio_st->codec->channels; |
|
} |
|
if (bytes_per_sec) |
|
pts -= (double)hw_buf_size / bytes_per_sec; |
|
return pts; |
|
} |
|
|
|
/* get the current video clock value */ |
|
static double get_video_clock(VideoState *is) |
|
{ |
|
if (is->paused) { |
|
return is->video_current_pts; |
|
} else { |
|
return is->video_current_pts_drift + av_gettime() / 1000000.0; |
|
} |
|
} |
|
|
|
/* get the current external clock value */ |
|
static double get_external_clock(VideoState *is) |
|
{ |
|
int64_t ti; |
|
ti = av_gettime(); |
|
return is->external_clock + ((ti - is->external_clock_time) * 1e-6); |
|
} |
|
|
|
/* get the current master clock value */ |
|
static double get_master_clock(VideoState *is) |
|
{ |
|
double val; |
|
|
|
if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) { |
|
if (is->video_st) |
|
val = get_video_clock(is); |
|
else |
|
val = get_audio_clock(is); |
|
} else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) { |
|
if (is->audio_st) |
|
val = get_audio_clock(is); |
|
else |
|
val = get_video_clock(is); |
|
} else { |
|
val = get_external_clock(is); |
|
} |
|
return val; |
|
} |
|
|
|
/* 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; |
|
} |
|
} |
|
|
|
/* pause or resume the video */ |
|
static void stream_pause(VideoState *is) |
|
{ |
|
if (is->paused) { |
|
is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts; |
|
if(is->read_pause_return != AVERROR(ENOSYS)){ |
|
is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0; |
|
} |
|
is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0; |
|
} |
|
is->paused = !is->paused; |
|
} |
|
|
|
static double compute_target_time(double frame_current_pts, VideoState *is) |
|
{ |
|
double delay, sync_threshold, diff; |
|
|
|
/* compute nominal delay */ |
|
delay = frame_current_pts - is->frame_last_pts; |
|
if (delay <= 0 || delay >= 10.0) { |
|
/* if incorrect delay, use previous one */ |
|
delay = is->frame_last_delay; |
|
} else { |
|
is->frame_last_delay = delay; |
|
} |
|
is->frame_last_pts = frame_current_pts; |
|
|
|
/* update delay to follow master synchronisation source */ |
|
if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || |
|
is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) { |
|
/* if video is slave, we try to correct big delays by |
|
duplicating or deleting a frame */ |
|
diff = get_video_clock(is) - 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, delay); |
|
if (fabs(diff) < AV_NOSYNC_THRESHOLD) { |
|
if (diff <= -sync_threshold) |
|
delay = 0; |
|
else if (diff >= sync_threshold) |
|
delay = 2 * delay; |
|
} |
|
} |
|
is->frame_timer += delay; |
|
#if defined(DEBUG_SYNC) |
|
printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n", |
|
delay, actual_delay, frame_current_pts, -diff); |
|
#endif |
|
|
|
return is->frame_timer; |
|
} |
|
|
|
/* called to display each frame */ |
|
static void video_refresh_timer(void *opaque) |
|
{ |
|
VideoState *is = opaque; |
|
VideoPicture *vp; |
|
|
|
SubPicture *sp, *sp2; |
|
|
|
if (is->video_st) { |
|
retry: |
|
if (is->pictq_size == 0) { |
|
//nothing to do, no picture to display in the que |
|
} else { |
|
double time= av_gettime()/1000000.0; |
|
double next_target; |
|
/* dequeue the picture */ |
|
vp = &is->pictq[is->pictq_rindex]; |
|
|
|
if(time < vp->target_clock) |
|
return; |
|
/* update current video pts */ |
|
is->video_current_pts = vp->pts; |
|
is->video_current_pts_drift = is->video_current_pts - time; |
|
is->video_current_pos = vp->pos; |
|
if(is->pictq_size > 1){ |
|
VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE]; |
|
assert(nextvp->target_clock >= vp->target_clock); |
|
next_target= nextvp->target_clock; |
|
}else{ |
|
next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly |
|
} |
|
if(framedrop && time > next_target){ |
|
is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR; |
|
if(is->pictq_size > 1 || time > next_target + 0.5){ |
|
/* update queue size and signal for next picture */ |
|
if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE) |
|
is->pictq_rindex = 0; |
|
|
|
SDL_LockMutex(is->pictq_mutex); |
|
is->pictq_size--; |
|
SDL_CondSignal(is->pictq_cond); |
|
SDL_UnlockMutex(is->pictq_mutex); |
|
goto retry; |
|
} |
|
} |
|
|
|
if(is->subtitle_st) { |
|
if (is->subtitle_stream_changed) { |
|
SDL_LockMutex(is->subpq_mutex); |
|
|
|
while (is->subpq_size) { |
|
free_subpicture(&is->subpq[is->subpq_rindex]); |
|
|
|
/* update queue size and signal for next picture */ |
|
if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) |
|
is->subpq_rindex = 0; |
|
|
|
is->subpq_size--; |
|
} |
|
is->subtitle_stream_changed = 0; |
|
|
|
SDL_CondSignal(is->subpq_cond); |
|
SDL_UnlockMutex(is->subpq_mutex); |
|
} else { |
|
if (is->subpq_size > 0) { |
|
sp = &is->subpq[is->subpq_rindex]; |
|
|
|
if (is->subpq_size > 1) |
|
sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE]; |
|
else |
|
sp2 = NULL; |
|
|
|
if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) |
|
|| (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) |
|
{ |
|
free_subpicture(sp); |
|
|
|
/* update queue size and signal for next picture */ |
|
if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) |
|
is->subpq_rindex = 0; |
|
|
|
SDL_LockMutex(is->subpq_mutex); |
|
is->subpq_size--; |
|
SDL_CondSignal(is->subpq_cond); |
|
SDL_UnlockMutex(is->subpq_mutex); |
|
} |
|
} |
|
} |
|
} |
|
|
|
/* display picture */ |
|
if (!display_disable) |
|
video_display(is); |
|
|
|
/* update queue size and signal for next picture */ |
|
if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE) |
|
is->pictq_rindex = 0; |
|
|
|
SDL_LockMutex(is->pictq_mutex); |
|
is->pictq_size--; |
|
SDL_CondSignal(is->pictq_cond); |
|
SDL_UnlockMutex(is->pictq_mutex); |
|
} |
|
} else if (is->audio_st) { |
|
/* draw the next audio frame */ |
|
|
|
/* if only audio stream, then display the audio bars (better |
|
than nothing, just to test the implementation */ |
|
|
|
/* display picture */ |
|
if (!display_disable) |
|
video_display(is); |
|
} |
|
if (show_status) { |
|
static int64_t last_time; |
|
int64_t cur_time; |
|
int aqsize, vqsize, sqsize; |
|
double av_diff; |
|
|
|
cur_time = av_gettime(); |
|
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_audio_clock(is) - get_video_clock(is); |
|
printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r", |
|
get_master_clock(is), |
|
av_diff, |
|
FFMAX(is->skip_frames-1, 0), |
|
aqsize / 1024, |
|
vqsize / 1024, |
|
sqsize, |
|
is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0, |
|
is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0); |
|
fflush(stdout); |
|
last_time = cur_time; |
|
} |
|
} |
|
} |
|
|
|
static void stream_close(VideoState *is) |
|
{ |
|
VideoPicture *vp; |
|
int i; |
|
/* XXX: use a special url_shutdown call to abort parse cleanly */ |
|
is->abort_request = 1; |
|
SDL_WaitThread(is->parse_tid, NULL); |
|
SDL_WaitThread(is->refresh_tid, NULL); |
|
|
|
/* free all pictures */ |
|
for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) { |
|
vp = &is->pictq[i]; |
|
#if CONFIG_AVFILTER |
|
if (vp->picref) { |
|
avfilter_unref_buffer(vp->picref); |
|
vp->picref = NULL; |
|
} |
|
#endif |
|
if (vp->bmp) { |
|
SDL_FreeYUVOverlay(vp->bmp); |
|
vp->bmp = NULL; |
|
} |
|
} |
|
SDL_DestroyMutex(is->pictq_mutex); |
|
SDL_DestroyCond(is->pictq_cond); |
|
SDL_DestroyMutex(is->subpq_mutex); |
|
SDL_DestroyCond(is->subpq_cond); |
|
#if !CONFIG_AVFILTER |
|
if (is->img_convert_ctx) |
|
sws_freeContext(is->img_convert_ctx); |
|
#endif |
|
av_free(is); |
|
} |
|
|
|
static void do_exit(void) |
|
{ |
|
if (cur_stream) { |
|
stream_close(cur_stream); |
|
cur_stream = NULL; |
|
} |
|
uninit_opts(); |
|
#if CONFIG_AVFILTER |
|
avfilter_uninit(); |
|
#endif |
|
if (show_status) |
|
printf("\n"); |
|
SDL_Quit(); |
|
av_log(NULL, AV_LOG_QUIET, ""); |
|
exit(0); |
|
} |
|
|
|
/* allocate a picture (needs to do that in main thread to avoid |
|
potential locking problems */ |
|
static void alloc_picture(void *opaque) |
|
{ |
|
VideoState *is = opaque; |
|
VideoPicture *vp; |
|
|
|
vp = &is->pictq[is->pictq_windex]; |
|
|
|
if (vp->bmp) |
|
SDL_FreeYUVOverlay(vp->bmp); |
|
|
|
#if CONFIG_AVFILTER |
|
if (vp->picref) |
|
avfilter_unref_buffer(vp->picref); |
|
vp->picref = NULL; |
|
|
|
vp->width = is->out_video_filter->inputs[0]->w; |
|
vp->height = is->out_video_filter->inputs[0]->h; |
|
vp->pix_fmt = is->out_video_filter->inputs[0]->format; |
|
#else |
|
vp->width = is->video_st->codec->width; |
|
vp->height = is->video_st->codec->height; |
|
vp->pix_fmt = is->video_st->codec->pix_fmt; |
|
#endif |
|
|
|
vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height, |
|
SDL_YV12_OVERLAY, |
|
screen); |
|
if (!vp->bmp || vp->bmp->pitches[0] < vp->width) { |
|
/* SDL allocates a buffer smaller than requested if the video |
|
* overlay hardware is unable to support the requested size. */ |
|
fprintf(stderr, "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(); |
|
} |
|
|
|
SDL_LockMutex(is->pictq_mutex); |
|
vp->allocated = 1; |
|
SDL_CondSignal(is->pictq_cond); |
|
SDL_UnlockMutex(is->pictq_mutex); |
|
} |
|
|
|
/** |
|
* |
|
* @param pts the dts of the pkt / pts of the frame and guessed if not known |
|
*/ |
|
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos) |
|
{ |
|
VideoPicture *vp; |
|
int dst_pix_fmt; |
|
#if CONFIG_AVFILTER |
|
AVPicture pict_src; |
|
#endif |
|
/* wait until we have space to put a new picture */ |
|
SDL_LockMutex(is->pictq_mutex); |
|
|
|
if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh) |
|
is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR)); |
|
|
|
while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && |
|
!is->videoq.abort_request) { |
|
SDL_CondWait(is->pictq_cond, is->pictq_mutex); |
|
} |
|
SDL_UnlockMutex(is->pictq_mutex); |
|
|
|
if (is->videoq.abort_request) |
|
return -1; |
|
|
|
vp = &is->pictq[is->pictq_windex]; |
|
|
|
/* alloc or resize hardware picture buffer */ |
|
if (!vp->bmp || |
|
#if CONFIG_AVFILTER |
|
vp->width != is->out_video_filter->inputs[0]->w || |
|
vp->height != is->out_video_filter->inputs[0]->h) { |
|
#else |
|
vp->width != is->video_st->codec->width || |
|
vp->height != is->video_st->codec->height) { |
|
#endif |
|
SDL_Event event; |
|
|
|
vp->allocated = 0; |
|
|
|
/* 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); |
|
} |
|
SDL_UnlockMutex(is->pictq_mutex); |
|
|
|
if (is->videoq.abort_request) |
|
return -1; |
|
} |
|
|
|
/* if the frame is not skipped, then display it */ |
|
if (vp->bmp) { |
|
AVPicture pict; |
|
#if CONFIG_AVFILTER |
|
if(vp->picref) |
|
avfilter_unref_buffer(vp->picref); |
|
vp->picref = src_frame->opaque; |
|
#endif |
|
|
|
/* get a pointer on the bitmap */ |
|
SDL_LockYUVOverlay (vp->bmp); |
|
|
|
dst_pix_fmt = PIX_FMT_YUV420P; |
|
memset(&pict,0,sizeof(AVPicture)); |
|
pict.data[0] = vp->bmp->pixels[0]; |
|
pict.data[1] = vp->bmp->pixels[2]; |
|
pict.data[2] = vp->bmp->pixels[1]; |
|
|
|
pict.linesize[0] = vp->bmp->pitches[0]; |
|
pict.linesize[1] = vp->bmp->pitches[2]; |
|
pict.linesize[2] = vp->bmp->pitches[1]; |
|
|
|
#if CONFIG_AVFILTER |
|
pict_src.data[0] = src_frame->data[0]; |
|
pict_src.data[1] = src_frame->data[1]; |
|
pict_src.data[2] = src_frame->data[2]; |
|
|
|
pict_src.linesize[0] = src_frame->linesize[0]; |
|
pict_src.linesize[1] = src_frame->linesize[1]; |
|
pict_src.linesize[2] = src_frame->linesize[2]; |
|
|
|
//FIXME use direct rendering |
|
av_picture_copy(&pict, &pict_src, |
|
vp->pix_fmt, vp->width, vp->height); |
|
#else |
|
sws_flags = av_get_int(sws_opts, "sws_flags", NULL); |
|
is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx, |
|
vp->width, vp->height, vp->pix_fmt, vp->width, vp->height, |
|
dst_pix_fmt, sws_flags, NULL, NULL, NULL); |
|
if (is->img_convert_ctx == NULL) { |
|
fprintf(stderr, "Cannot initialize the conversion context\n"); |
|
exit(1); |
|
} |
|
sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize, |
|
0, vp->height, pict.data, pict.linesize); |
|
#endif |
|
/* update the bitmap content */ |
|
SDL_UnlockYUVOverlay(vp->bmp); |
|
|
|
vp->pts = pts; |
|
vp->pos = pos; |
|
|
|
/* now we can update the picture count */ |
|
if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE) |
|
is->pictq_windex = 0; |
|
SDL_LockMutex(is->pictq_mutex); |
|
vp->target_clock= compute_target_time(vp->pts, is); |
|
|
|
is->pictq_size++; |
|
SDL_UnlockMutex(is->pictq_mutex); |
|
} |
|
return 0; |
|
} |
|
|
|
/** |
|
* compute the exact PTS for the picture if it is omitted in the stream |
|
* @param pts1 the dts of the pkt / pts of the frame |
|
*/ |
|
static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos) |
|
{ |
|
double frame_delay, pts; |
|
|
|
pts = pts1; |
|
|
|
if (pts != 0) { |
|
/* update video clock with pts, if present */ |
|
is->video_clock = pts; |
|
} else { |
|
pts = is->video_clock; |
|
} |
|
/* update video clock for next frame */ |
|
frame_delay = av_q2d(is->video_st->codec->time_base); |
|
/* for MPEG2, the frame can be repeated, so we update the |
|
clock accordingly */ |
|
frame_delay += src_frame->repeat_pict * (frame_delay * 0.5); |
|
is->video_clock += frame_delay; |
|
|
|
#if defined(DEBUG_SYNC) && 0 |
|
printf("frame_type=%c clock=%0.3f pts=%0.3f\n", |
|
av_get_pict_type_char(src_frame->pict_type), pts, pts1); |
|
#endif |
|
return queue_picture(is, src_frame, pts, pos); |
|
} |
|
|
|
static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt) |
|
{ |
|
int len1, got_picture, i; |
|
|
|
if (packet_queue_get(&is->videoq, pkt, 1) < 0) |
|
return -1; |
|
|
|
if (pkt->data == flush_pkt.data) { |
|
avcodec_flush_buffers(is->video_st->codec); |
|
|
|
SDL_LockMutex(is->pictq_mutex); |
|
//Make sure there are no long delay timers (ideally we should just flush the que but thats harder) |
|
for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) { |
|
is->pictq[i].target_clock= 0; |
|
} |
|
while (is->pictq_size && !is->videoq.abort_request) { |
|
SDL_CondWait(is->pictq_cond, is->pictq_mutex); |
|
} |
|
is->video_current_pos = -1; |
|
SDL_UnlockMutex(is->pictq_mutex); |
|
|
|
is->frame_last_pts = AV_NOPTS_VALUE; |
|
is->frame_last_delay = 0; |
|
is->frame_timer = (double)av_gettime() / 1000000.0; |
|
is->skip_frames = 1; |
|
is->skip_frames_index = 0; |
|
return 0; |
|
} |
|
|
|
len1 = avcodec_decode_video2(is->video_st->codec, |
|
frame, &got_picture, |
|
pkt); |
|
|
|
if (got_picture) { |
|
if (decoder_reorder_pts == -1) { |
|
*pts = frame->best_effort_timestamp; |
|
} else if (decoder_reorder_pts) { |
|
*pts = frame->pkt_pts; |
|
} else { |
|
*pts = frame->pkt_dts; |
|
} |
|
|
|
if (*pts == AV_NOPTS_VALUE) { |
|
*pts = 0; |
|
} |
|
|
|
is->skip_frames_index += 1; |
|
if(is->skip_frames_index >= is->skip_frames){ |
|
is->skip_frames_index -= FFMAX(is->skip_frames, 1.0); |
|
return 1; |
|
} |
|
|
|
} |
|
return 0; |
|
} |
|
|
|
#if CONFIG_AVFILTER |
|
typedef struct { |
|
VideoState *is; |
|
AVFrame *frame; |
|
int use_dr1; |
|
} FilterPriv; |
|
|
|
static int input_get_buffer(AVCodecContext *codec, AVFrame *pic) |
|
{ |
|
AVFilterContext *ctx = codec->opaque; |
|
AVFilterBufferRef *ref; |
|
int perms = AV_PERM_WRITE; |
|
int i, w, h, stride[4]; |
|
unsigned edge; |
|
|
|
if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES) |
|
perms |= AV_PERM_NEG_LINESIZES; |
|
|
|
if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) { |
|
if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ; |
|
if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE; |
|
if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2; |
|
} |
|
if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE; |
|
|
|
w = codec->width; |
|
h = codec->height; |
|
avcodec_align_dimensions2(codec, &w, &h, stride); |
|
edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width(); |
|
w += edge << 1; |
|
h += edge << 1; |
|
|
|
if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h))) |
|
return -1; |
|
|
|
ref->video->w = codec->width; |
|
ref->video->h = codec->height; |
|
for(i = 0; i < 4; i ++) { |
|
unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0; |
|
unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0; |
|
|
|
if (ref->data[i]) { |
|
ref->data[i] += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift); |
|
} |
|
pic->data[i] = ref->data[i]; |
|
pic->linesize[i] = ref->linesize[i]; |
|
} |
|
pic->opaque = ref; |
|
pic->age = INT_MAX; |
|
pic->type = FF_BUFFER_TYPE_USER; |
|
pic->reordered_opaque = codec->reordered_opaque; |
|
if(codec->pkt) pic->pkt_pts = codec->pkt->pts; |
|
else pic->pkt_pts = AV_NOPTS_VALUE; |
|
return 0; |
|
} |
|
|
|
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic) |
|
{ |
|
memset(pic->data, 0, sizeof(pic->data)); |
|
avfilter_unref_buffer(pic->opaque); |
|
} |
|
|
|
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic) |
|
{ |
|
AVFilterBufferRef *ref = pic->opaque; |
|
|
|
if (pic->data[0] == NULL) { |
|
pic->buffer_hints |= FF_BUFFER_HINTS_READABLE; |
|
return codec->get_buffer(codec, pic); |
|
} |
|
|
|
if ((codec->width != ref->video->w) || (codec->height != ref->video->h) || |
|
(codec->pix_fmt != ref->format)) { |
|
av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n"); |
|
return -1; |
|
} |
|
|
|
pic->reordered_opaque = codec->reordered_opaque; |
|
if(codec->pkt) pic->pkt_pts = codec->pkt->pts; |
|
else pic->pkt_pts = AV_NOPTS_VALUE; |
|
return 0; |
|
} |
|
|
|
static int input_init(AVFilterContext *ctx, const char *args, void *opaque) |
|
{ |
|
FilterPriv *priv = ctx->priv; |
|
AVCodecContext *codec; |
|
if(!opaque) return -1; |
|
|
|
priv->is = opaque; |
|
codec = priv->is->video_st->codec; |
|
codec->opaque = ctx; |
|
if(codec->codec->capabilities & CODEC_CAP_DR1) { |
|
priv->use_dr1 = 1; |
|
codec->get_buffer = input_get_buffer; |
|
codec->release_buffer = input_release_buffer; |
|
codec->reget_buffer = input_reget_buffer; |
|
codec->thread_safe_callbacks = 1; |
|
} |
|
|
|
priv->frame = avcodec_alloc_frame(); |
|
|
|
return 0; |
|
} |
|
|
|
static void input_uninit(AVFilterContext *ctx) |
|
{ |
|
FilterPriv *priv = ctx->priv; |
|
av_free(priv->frame); |
|
} |
|
|
|
static int input_request_frame(AVFilterLink *link) |
|
{ |
|
FilterPriv *priv = link->src->priv; |
|
AVFilterBufferRef *picref; |
|
int64_t pts = 0; |
|
AVPacket pkt; |
|
int ret; |
|
|
|
while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt))) |
|
av_free_packet(&pkt); |
|
if (ret < 0) |
|
return -1; |
|
|
|
if(priv->use_dr1) { |
|
picref = avfilter_ref_buffer(priv->frame->opaque, ~0); |
|
} else { |
|
picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h); |
|
av_image_copy(picref->data, picref->linesize, |
|
priv->frame->data, priv->frame->linesize, |
|
picref->format, link->w, link->h); |
|
} |
|
av_free_packet(&pkt); |
|
|
|
picref->pts = pts; |
|
picref->pos = pkt.pos; |
|
picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio; |
|
avfilter_start_frame(link, picref); |
|
avfilter_draw_slice(link, 0, link->h, 1); |
|
avfilter_end_frame(link); |
|
|
|
return 0; |
|
} |
|
|
|
static int input_query_formats(AVFilterContext *ctx) |
|
{ |
|
FilterPriv *priv = ctx->priv; |
|
enum PixelFormat pix_fmts[] = { |
|
priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE |
|
}; |
|
|
|
avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts)); |
|
return 0; |
|
} |
|
|
|
static int input_config_props(AVFilterLink *link) |
|
{ |
|
FilterPriv *priv = link->src->priv; |
|
AVCodecContext *c = priv->is->video_st->codec; |
|
|
|
link->w = c->width; |
|
link->h = c->height; |
|
link->time_base = priv->is->video_st->time_base; |
|
|
|
return 0; |
|
} |
|
|
|
static AVFilter input_filter = |
|
{ |
|
.name = "ffplay_input", |
|
|
|
.priv_size = sizeof(FilterPriv), |
|
|
|
.init = input_init, |
|
.uninit = input_uninit, |
|
|
|
.query_formats = input_query_formats, |
|
|
|
.inputs = (AVFilterPad[]) {{ .name = NULL }}, |
|
.outputs = (AVFilterPad[]) {{ .name = "default", |
|
.type = AVMEDIA_TYPE_VIDEO, |
|
.request_frame = input_request_frame, |
|
.config_props = input_config_props, }, |
|
{ .name = NULL }}, |
|
}; |
|
|
|
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters) |
|
{ |
|
char sws_flags_str[128]; |
|
int ret; |
|
FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P }; |
|
AVFilterContext *filt_src = NULL, *filt_out = NULL; |
|
snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags); |
|
graph->scale_sws_opts = av_strdup(sws_flags_str); |
|
|
|
if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src", |
|
NULL, is, graph)) < 0) |
|
goto the_end; |
|
if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out", |
|
NULL, &ffsink_ctx, graph)) < 0) |
|
goto the_end; |
|
|
|
if(vfilters) { |
|
AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut)); |
|
AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut)); |
|
|
|
outputs->name = av_strdup("in"); |
|
outputs->filter_ctx = filt_src; |
|
outputs->pad_idx = 0; |
|
outputs->next = NULL; |
|
|
|
inputs->name = av_strdup("out"); |
|
inputs->filter_ctx = filt_out; |
|
inputs->pad_idx = 0; |
|
inputs->next = NULL; |
|
|
|
if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0) |
|
goto the_end; |
|
av_freep(&vfilters); |
|
} else { |
|
if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0) |
|
goto the_end; |
|
} |
|
|
|
if ((ret = avfilter_graph_config(graph, NULL)) < 0) |
|
goto the_end; |
|
|
|
is->out_video_filter = filt_out; |
|
the_end: |
|
return ret; |
|
} |
|
|
|
#endif /* CONFIG_AVFILTER */ |
|
|
|
static int video_thread(void *arg) |
|
{ |
|
VideoState *is = arg; |
|
AVFrame *frame= avcodec_alloc_frame(); |
|
int64_t pts_int; |
|
double pts; |
|
int ret; |
|
|
|
#if CONFIG_AVFILTER |
|
AVFilterGraph *graph = avfilter_graph_alloc(); |
|
AVFilterContext *filt_out = NULL; |
|
int64_t pos; |
|
|
|
if ((ret = configure_video_filters(graph, is, vfilters)) < 0) |
|
goto the_end; |
|
filt_out = is->out_video_filter; |
|
#endif |
|
|
|
for(;;) { |
|
#if !CONFIG_AVFILTER |
|
AVPacket pkt; |
|
#else |
|
AVFilterBufferRef *picref; |
|
AVRational tb; |
|
#endif |
|
while (is->paused && !is->videoq.abort_request) |
|
SDL_Delay(10); |
|
#if CONFIG_AVFILTER |
|
ret = get_filtered_video_frame(filt_out, frame, &picref, &tb); |
|
if (picref) { |
|
pts_int = picref->pts; |
|
pos = picref->pos; |
|
frame->opaque = picref; |
|
} |
|
|
|
if (av_cmp_q(tb, is->video_st->time_base)) { |
|
av_unused int64_t pts1 = pts_int; |
|
pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base); |
|
av_dlog(NULL, "video_thread(): " |
|
"tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n", |
|
tb.num, tb.den, pts1, |
|
is->video_st->time_base.num, is->video_st->time_base.den, pts_int); |
|
} |
|
#else |
|
ret = get_video_frame(is, frame, &pts_int, &pkt); |
|
#endif |
|
|
|
if (ret < 0) goto the_end; |
|
|
|
if (!ret) |
|
continue; |
|
|
|
pts = pts_int*av_q2d(is->video_st->time_base); |
|
|
|
#if CONFIG_AVFILTER |
|
ret = output_picture2(is, frame, pts, pos); |
|
#else |
|
ret = output_picture2(is, frame, pts, pkt.pos); |
|
av_free_packet(&pkt); |
|
#endif |
|
if (ret < 0) |
|
goto the_end; |
|
|
|
if (step) |
|
if (cur_stream) |
|
stream_pause(cur_stream); |
|
} |
|
the_end: |
|
#if CONFIG_AVFILTER |
|
avfilter_graph_free(&graph); |
|
#endif |
|
av_free(frame); |
|
return 0; |
|
} |
|
|
|
static int subtitle_thread(void *arg) |
|
{ |
|
VideoState *is = arg; |
|
SubPicture *sp; |
|
AVPacket pkt1, *pkt = &pkt1; |
|
int len1, got_subtitle; |
|
double pts; |
|
int i, j; |
|
int r, g, b, y, u, v, a; |
|
|
|
for(;;) { |
|
while (is->paused && !is->subtitleq.abort_request) { |
|
SDL_Delay(10); |
|
} |
|
if (packet_queue_get(&is->subtitleq, pkt, 1) < 0) |
|
break; |
|
|
|
if(pkt->data == flush_pkt.data){ |
|
avcodec_flush_buffers(is->subtitle_st->codec); |
|
continue; |
|
} |
|
SDL_LockMutex(is->subpq_mutex); |
|
while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE && |
|
!is->subtitleq.abort_request) { |
|
SDL_CondWait(is->subpq_cond, is->subpq_mutex); |
|
} |
|
SDL_UnlockMutex(is->subpq_mutex); |
|
|
|
if (is->subtitleq.abort_request) |
|
goto the_end; |
|
|
|
sp = &is->subpq[is->subpq_windex]; |
|
|
|
/* NOTE: ipts is the PTS of the _first_ picture beginning in |
|
this packet, if any */ |
|
pts = 0; |
|
if (pkt->pts != AV_NOPTS_VALUE) |
|
pts = av_q2d(is->subtitle_st->time_base)*pkt->pts; |
|
|
|
len1 = avcodec_decode_subtitle2(is->subtitle_st->codec, |
|
&sp->sub, &got_subtitle, |
|
pkt); |
|
// if (len1 < 0) |
|
// break; |
|
if (got_subtitle && sp->sub.format == 0) { |
|
sp->pts = pts; |
|
|
|
for (i = 0; i < sp->sub.num_rects; i++) |
|
{ |
|
for (j = 0; j < sp->sub.rects[i]->nb_colors; j++) |
|
{ |
|
RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j); |
|
y = RGB_TO_Y_CCIR(r, g, b); |
|
u = RGB_TO_U_CCIR(r, g, b, 0); |
|
v = RGB_TO_V_CCIR(r, g, b, 0); |
|
YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a); |
|
} |
|
} |
|
|
|
/* now we can update the picture count */ |
|
if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE) |
|
is->subpq_windex = 0; |
|
SDL_LockMutex(is->subpq_mutex); |
|
is->subpq_size++; |
|
SDL_UnlockMutex(is->subpq_mutex); |
|
} |
|
av_free_packet(pkt); |
|
// if (step) |
|
// if (cur_stream) |
|
// stream_pause(cur_stream); |
|
} |
|
the_end: |
|
return 0; |
|
} |
|
|
|
/* copy samples for viewing in editor window */ |
|
static void update_sample_display(VideoState *is, short *samples, int samples_size) |
|
{ |
|
int size, len, channels; |
|
|
|
channels = is->audio_st->codec->channels; |
|
|
|
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 new audio buffer size (samples can be added or deleted |
|
to get better sync if video or external master clock) */ |
|
static int synchronize_audio(VideoState *is, short *samples, |
|
int samples_size1, double pts) |
|
{ |
|
int n, samples_size; |
|
double ref_clock; |
|
|
|
n = 2 * is->audio_st->codec->channels; |
|
samples_size = samples_size1; |
|
|
|
/* if not master, then we try to remove or add samples to correct the clock */ |
|
if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) || |
|
is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) { |
|
double diff, avg_diff; |
|
int wanted_size, min_size, max_size, nb_samples; |
|
|
|
ref_clock = get_master_clock(is); |
|
diff = get_audio_clock(is) - ref_clock; |
|
|
|
if (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_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n); |
|
nb_samples = samples_size / n; |
|
|
|
min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n; |
|
max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n; |
|
if (wanted_size < min_size) |
|
wanted_size = min_size; |
|
else if (wanted_size > max_size) |
|
wanted_size = max_size; |
|
|
|
/* add or remove samples to correction the synchro */ |
|
if (wanted_size < samples_size) { |
|
/* remove samples */ |
|
samples_size = wanted_size; |
|
} else if (wanted_size > samples_size) { |
|
uint8_t *samples_end, *q; |
|
int nb; |
|
|
|
/* add samples */ |
|
nb = (samples_size - wanted_size); |
|
samples_end = (uint8_t *)samples + samples_size - n; |
|
q = samples_end + n; |
|
while (nb > 0) { |
|
memcpy(q, samples_end, n); |
|
q += n; |
|
nb -= n; |
|
} |
|
samples_size = wanted_size; |
|
} |
|
} |
|
#if 0 |
|
printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n", |
|
diff, avg_diff, samples_size - samples_size1, |
|
is->audio_clock, is->video_clock, is->audio_diff_threshold); |
|
#endif |
|
} |
|
} 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 samples_size; |
|
} |
|
|
|
/* decode one audio frame and returns its uncompressed size */ |
|
static int audio_decode_frame(VideoState *is, double *pts_ptr) |
|
{ |
|
AVPacket *pkt_temp = &is->audio_pkt_temp; |
|
AVPacket *pkt = &is->audio_pkt; |
|
AVCodecContext *dec= is->audio_st->codec; |
|
int n, len1, data_size; |
|
double pts; |
|
|
|
for(;;) { |
|
/* NOTE: the audio packet can contain several frames */ |
|
while (pkt_temp->size > 0) { |
|
data_size = sizeof(is->audio_buf1); |
|
len1 = avcodec_decode_audio3(dec, |
|
(int16_t *)is->audio_buf1, &data_size, |
|
pkt_temp); |
|
if (len1 < 0) { |
|
/* if error, we skip the frame */ |
|
pkt_temp->size = 0; |
|
break; |
|
} |
|
|
|
pkt_temp->data += len1; |
|
pkt_temp->size -= len1; |
|
if (data_size <= 0) |
|
continue; |
|
|
|
if (dec->sample_fmt != is->audio_src_fmt) { |
|
if (is->reformat_ctx) |
|
av_audio_convert_free(is->reformat_ctx); |
|
is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1, |
|
dec->sample_fmt, 1, NULL, 0); |
|
if (!is->reformat_ctx) { |
|
fprintf(stderr, "Cannot convert %s sample format to %s sample format\n", |
|
av_get_sample_fmt_name(dec->sample_fmt), |
|
av_get_sample_fmt_name(AV_SAMPLE_FMT_S16)); |
|
break; |
|
} |
|
is->audio_src_fmt= dec->sample_fmt; |
|
} |
|
|
|
if (is->reformat_ctx) { |
|
const void *ibuf[6]= {is->audio_buf1}; |
|
void *obuf[6]= {is->audio_buf2}; |
|
int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8}; |
|
int ostride[6]= {2}; |
|
int len= data_size/istride[0]; |
|
if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) { |
|
printf("av_audio_convert() failed\n"); |
|
break; |
|
} |
|
is->audio_buf= is->audio_buf2; |
|
/* FIXME: existing code assume that data_size equals framesize*channels*2 |
|
remove this legacy cruft */ |
|
data_size= len*2; |
|
}else{ |
|
is->audio_buf= is->audio_buf1; |
|
} |
|
|
|
/* if no pts, then compute it */ |
|
pts = is->audio_clock; |
|
*pts_ptr = pts; |
|
n = 2 * dec->channels; |
|
is->audio_clock += (double)data_size / |
|
(double)(n * dec->sample_rate); |
|
#if defined(DEBUG_SYNC) |
|
{ |
|
static double last_clock; |
|
printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n", |
|
is->audio_clock - last_clock, |
|
is->audio_clock, pts); |
|
last_clock = is->audio_clock; |
|
} |
|
#endif |
|
return data_size; |
|
} |
|
|
|
/* free the current packet */ |
|
if (pkt->data) |
|
av_free_packet(pkt); |
|
|
|
if (is->paused || is->audioq.abort_request) { |
|
return -1; |
|
} |
|
|
|
/* read next packet */ |
|
if (packet_queue_get(&is->audioq, pkt, 1) < 0) |
|
return -1; |
|
if(pkt->data == flush_pkt.data){ |
|
avcodec_flush_buffers(dec); |
|
continue; |
|
} |
|
|
|
pkt_temp->data = pkt->data; |
|
pkt_temp->size = pkt->size; |
|
|
|
/* if update the audio clock with the pts */ |
|
if (pkt->pts != AV_NOPTS_VALUE) { |
|
is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts; |
|
} |
|
} |
|
} |
|
|
|
/* get the current audio output buffer size, in samples. With SDL, we |
|
cannot have a precise information */ |
|
static int audio_write_get_buf_size(VideoState *is) |
|
{ |
|
return is->audio_buf_size - is->audio_buf_index; |
|
} |
|
|
|
|
|
/* prepare a new audio buffer */ |
|
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len) |
|
{ |
|
VideoState *is = opaque; |
|
int audio_size, len1; |
|
double pts; |
|
|
|
audio_callback_time = av_gettime(); |
|
|
|
while (len > 0) { |
|
if (is->audio_buf_index >= is->audio_buf_size) { |
|
audio_size = audio_decode_frame(is, &pts); |
|
if (audio_size < 0) { |
|
/* if error, just output silence */ |
|
is->audio_buf = is->audio_buf1; |
|
is->audio_buf_size = 1024; |
|
memset(is->audio_buf, 0, is->audio_buf_size); |
|
} else { |
|
if (is->show_audio) |
|
update_sample_display(is, (int16_t *)is->audio_buf, audio_size); |
|
audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size, |
|
pts); |
|
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; |
|
memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1); |
|
len -= len1; |
|
stream += len1; |
|
is->audio_buf_index += len1; |
|
} |
|
} |
|
|
|
/* 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; |
|
SDL_AudioSpec wanted_spec, spec; |
|
|
|
if (stream_index < 0 || stream_index >= ic->nb_streams) |
|
return -1; |
|
avctx = ic->streams[stream_index]->codec; |
|
|
|
/* prepare audio output */ |
|
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { |
|
if (avctx->channels > 0) { |
|
avctx->request_channels = FFMIN(2, avctx->channels); |
|
} else { |
|
avctx->request_channels = 2; |
|
} |
|
} |
|
|
|
codec = avcodec_find_decoder(avctx->codec_id); |
|
avctx->debug_mv = debug_mv; |
|
avctx->debug = debug; |
|
avctx->workaround_bugs = workaround_bugs; |
|
avctx->lowres = lowres; |
|
if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE; |
|
avctx->idct_algo= idct; |
|
if(fast) avctx->flags2 |= CODEC_FLAG2_FAST; |
|
avctx->skip_frame= skip_frame; |
|
avctx->skip_idct= skip_idct; |
|
avctx->skip_loop_filter= skip_loop_filter; |
|
avctx->error_recognition= error_recognition; |
|
avctx->error_concealment= error_concealment; |
|
avctx->thread_count= thread_count; |
|
|
|
set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec); |
|
|
|
if (!codec || |
|
avcodec_open(avctx, codec) < 0) |
|
return -1; |
|
|
|
/* prepare audio output */ |
|
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { |
|
wanted_spec.freq = avctx->sample_rate; |
|
wanted_spec.format = AUDIO_S16SYS; |
|
wanted_spec.channels = avctx->channels; |
|
wanted_spec.silence = 0; |
|
wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE; |
|
wanted_spec.callback = sdl_audio_callback; |
|
wanted_spec.userdata = is; |
|
if (SDL_OpenAudio(&wanted_spec, &spec) < 0) { |
|
fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError()); |
|
return -1; |
|
} |
|
is->audio_hw_buf_size = spec.size; |
|
is->audio_src_fmt= AV_SAMPLE_FMT_S16; |
|
} |
|
|
|
ic->streams[stream_index]->discard = AVDISCARD_DEFAULT; |
|
switch(avctx->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
is->audio_stream = stream_index; |
|
is->audio_st = ic->streams[stream_index]; |
|
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 = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate; |
|
|
|
memset(&is->audio_pkt, 0, sizeof(is->audio_pkt)); |
|
packet_queue_init(&is->audioq); |
|
SDL_PauseAudio(0); |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
is->video_stream = stream_index; |
|
is->video_st = ic->streams[stream_index]; |
|
|
|
// is->video_current_pts_time = av_gettime(); |
|
|
|
packet_queue_init(&is->videoq); |
|
is->video_tid = SDL_CreateThread(video_thread, is); |
|
break; |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
is->subtitle_stream = stream_index; |
|
is->subtitle_st = ic->streams[stream_index]; |
|
packet_queue_init(&is->subtitleq); |
|
|
|
is->subtitle_tid = SDL_CreateThread(subtitle_thread, is); |
|
break; |
|
default: |
|
break; |
|
} |
|
return 0; |
|
} |
|
|
|
static void stream_component_close(VideoState *is, int stream_index) |
|
{ |
|
AVFormatContext *ic = is->ic; |
|
AVCodecContext *avctx; |
|
|
|
if (stream_index < 0 || stream_index >= ic->nb_streams) |
|
return; |
|
avctx = ic->streams[stream_index]->codec; |
|
|
|
switch(avctx->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
packet_queue_abort(&is->audioq); |
|
|
|
SDL_CloseAudio(); |
|
|
|
packet_queue_end(&is->audioq); |
|
if (is->reformat_ctx) |
|
av_audio_convert_free(is->reformat_ctx); |
|
is->reformat_ctx = NULL; |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
packet_queue_abort(&is->videoq); |
|
|
|
/* note: we also signal this mutex to make sure we deblock the |
|
video thread in all cases */ |
|
SDL_LockMutex(is->pictq_mutex); |
|
SDL_CondSignal(is->pictq_cond); |
|
SDL_UnlockMutex(is->pictq_mutex); |
|
|
|
SDL_WaitThread(is->video_tid, NULL); |
|
|
|
packet_queue_end(&is->videoq); |
|
break; |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
packet_queue_abort(&is->subtitleq); |
|
|
|
/* note: we also signal this mutex to make sure we deblock the |
|
video thread in all cases */ |
|
SDL_LockMutex(is->subpq_mutex); |
|
is->subtitle_stream_changed = 1; |
|
|
|
SDL_CondSignal(is->subpq_cond); |
|
SDL_UnlockMutex(is->subpq_mutex); |
|
|
|
SDL_WaitThread(is->subtitle_tid, NULL); |
|
|
|
packet_queue_end(&is->subtitleq); |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
ic->streams[stream_index]->discard = AVDISCARD_ALL; |
|
avcodec_close(avctx); |
|
switch(avctx->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; |
|
} |
|
} |
|
|
|
/* since we have only one decoding thread, we can use a global |
|
variable instead of a thread local variable */ |
|
static VideoState *global_video_state; |
|
|
|
static int decode_interrupt_cb(void) |
|
{ |
|
return (global_video_state && global_video_state->abort_request); |
|
} |
|
|
|
/* this thread gets the stream from the disk or the network */ |
|
static int decode_thread(void *arg) |
|
{ |
|
VideoState *is = arg; |
|
AVFormatContext *ic; |
|
int err, i, ret; |
|
int st_index[AVMEDIA_TYPE_NB]; |
|
AVPacket pkt1, *pkt = &pkt1; |
|
AVFormatParameters params, *ap = ¶ms; |
|
int eof=0; |
|
int pkt_in_play_range = 0; |
|
|
|
ic = avformat_alloc_context(); |
|
|
|
memset(st_index, -1, sizeof(st_index)); |
|
is->video_stream = -1; |
|
is->audio_stream = -1; |
|
is->subtitle_stream = -1; |
|
|
|
global_video_state = is; |
|
url_set_interrupt_cb(decode_interrupt_cb); |
|
|
|
memset(ap, 0, sizeof(*ap)); |
|
|
|
ap->prealloced_context = 1; |
|
ap->width = frame_width; |
|
ap->height= frame_height; |
|
ap->time_base= (AVRational){1, 25}; |
|
ap->pix_fmt = frame_pix_fmt; |
|
|
|
set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL); |
|
|
|
err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap); |
|
if (err < 0) { |
|
print_error(is->filename, err); |
|
ret = -1; |
|
goto fail; |
|
} |
|
is->ic = ic; |
|
|
|
if(genpts) |
|
ic->flags |= AVFMT_FLAG_GENPTS; |
|
|
|
err = av_find_stream_info(ic); |
|
if (err < 0) { |
|
fprintf(stderr, "%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 url_feof() to test for the end |
|
|
|
if(seek_by_bytes<0) |
|
seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT); |
|
|
|
/* 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) { |
|
fprintf(stderr, "%s: could not seek to position %0.3f\n", |
|
is->filename, (double)timestamp / AV_TIME_BASE); |
|
} |
|
} |
|
|
|
for (i = 0; i < ic->nb_streams; i++) |
|
ic->streams[i]->discard = AVDISCARD_ALL; |
|
if (!video_disable) |
|
st_index[AVMEDIA_TYPE_VIDEO] = |
|
av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO, |
|
wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0); |
|
if (!audio_disable) |
|
st_index[AVMEDIA_TYPE_AUDIO] = |
|
av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, |
|
wanted_stream[AVMEDIA_TYPE_AUDIO], |
|
st_index[AVMEDIA_TYPE_VIDEO], |
|
NULL, 0); |
|
if (!video_disable) |
|
st_index[AVMEDIA_TYPE_SUBTITLE] = |
|
av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE, |
|
wanted_stream[AVMEDIA_TYPE_SUBTITLE], |
|
(st_index[AVMEDIA_TYPE_AUDIO] >= 0 ? |
|
st_index[AVMEDIA_TYPE_AUDIO] : |
|
st_index[AVMEDIA_TYPE_VIDEO]), |
|
NULL, 0); |
|
if (show_status) { |
|
av_dump_format(ic, 0, is->filename, 0); |
|
} |
|
|
|
/* 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]); |
|
} |
|
is->refresh_tid = SDL_CreateThread(refresh_thread, is); |
|
if(ret<0) { |
|
if (!display_disable) |
|
is->show_audio = 2; |
|
} |
|
|
|
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) { |
|
fprintf(stderr, "%s: could not open codecs\n", is->filename); |
|
ret = -1; |
|
goto fail; |
|
} |
|
|
|
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 |
|
if (is->paused && !strcmp(ic->iformat->name, "rtsp")) { |
|
/* 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) { |
|
fprintf(stderr, "%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); |
|
} |
|
} |
|
is->seek_req = 0; |
|
eof= 0; |
|
} |
|
|
|
/* if the queue are full, no need to read more */ |
|
if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE |
|
|| ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0) |
|
&& (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0) |
|
&& (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) { |
|
/* wait 10 ms */ |
|
SDL_Delay(10); |
|
continue; |
|
} |
|
if(eof) { |
|
if(is->video_stream >= 0){ |
|
av_init_packet(pkt); |
|
pkt->data=NULL; |
|
pkt->size=0; |
|
pkt->stream_index= is->video_stream; |
|
packet_queue_put(&is->videoq, pkt); |
|
} |
|
SDL_Delay(10); |
|
if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){ |
|
if(loop!=1 && (!loop || --loop)){ |
|
stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0); |
|
}else if(autoexit){ |
|
ret=AVERROR_EOF; |
|
goto fail; |
|
} |
|
} |
|
continue; |
|
} |
|
ret = av_read_frame(ic, pkt); |
|
if (ret < 0) { |
|
if (ret == AVERROR_EOF || url_feof(ic->pb)) |
|
eof=1; |
|
if (url_ferror(ic->pb)) |
|
break; |
|
SDL_Delay(100); /* wait for user event */ |
|
continue; |
|
} |
|
/* check if packet is in play range specified by user, then queue, otherwise discard */ |
|
pkt_in_play_range = duration == AV_NOPTS_VALUE || |
|
(pkt->pts - ic->streams[pkt->stream_index]->start_time) * |
|
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) { |
|
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_free_packet(pkt); |
|
} |
|
} |
|
/* wait until the end */ |
|
while (!is->abort_request) { |
|
SDL_Delay(100); |
|
} |
|
|
|
ret = 0; |
|
fail: |
|
/* disable interrupting */ |
|
global_video_state = 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); |
|
if (is->ic) { |
|
av_close_input_file(is->ic); |
|
is->ic = NULL; /* safety */ |
|
} |
|
url_set_interrupt_cb(NULL); |
|
|
|
if (ret != 0) { |
|
SDL_Event event; |
|
|
|
event.type = FF_QUIT_EVENT; |
|
event.user.data1 = is; |
|
SDL_PushEvent(&event); |
|
} |
|
return 0; |
|
} |
|
|
|
static VideoState *stream_open(const char *filename, AVInputFormat *iformat) |
|
{ |
|
VideoState *is; |
|
|
|
is = av_mallocz(sizeof(VideoState)); |
|
if (!is) |
|
return NULL; |
|
av_strlcpy(is->filename, filename, sizeof(is->filename)); |
|
is->iformat = iformat; |
|
is->ytop = 0; |
|
is->xleft = 0; |
|
|
|
/* start video display */ |
|
is->pictq_mutex = SDL_CreateMutex(); |
|
is->pictq_cond = SDL_CreateCond(); |
|
|
|
is->subpq_mutex = SDL_CreateMutex(); |
|
is->subpq_cond = SDL_CreateCond(); |
|
|
|
is->av_sync_type = av_sync_type; |
|
is->parse_tid = SDL_CreateThread(decode_thread, is); |
|
if (!is->parse_tid) { |
|
av_free(is); |
|
return NULL; |
|
} |
|
return is; |
|
} |
|
|
|
static void stream_cycle_channel(VideoState *is, int codec_type) |
|
{ |
|
AVFormatContext *ic = is->ic; |
|
int start_index, stream_index; |
|
AVStream *st; |
|
|
|
if (codec_type == AVMEDIA_TYPE_VIDEO) |
|
start_index = is->video_stream; |
|
else if (codec_type == AVMEDIA_TYPE_AUDIO) |
|
start_index = is->audio_stream; |
|
else |
|
start_index = is->subtitle_stream; |
|
if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0)) |
|
return; |
|
stream_index = start_index; |
|
for(;;) { |
|
if (++stream_index >= is->ic->nb_streams) |
|
{ |
|
if (codec_type == AVMEDIA_TYPE_SUBTITLE) |
|
{ |
|
stream_index = -1; |
|
goto the_end; |
|
} else |
|
stream_index = 0; |
|
} |
|
if (stream_index == start_index) |
|
return; |
|
st = ic->streams[stream_index]; |
|
if (st->codec->codec_type == codec_type) { |
|
/* check that parameters are OK */ |
|
switch(codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
if (st->codec->sample_rate != 0 && |
|
st->codec->channels != 0) |
|
goto the_end; |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
goto the_end; |
|
default: |
|
break; |
|
} |
|
} |
|
} |
|
the_end: |
|
stream_component_close(is, start_index); |
|
stream_component_open(is, stream_index); |
|
} |
|
|
|
|
|
static void toggle_full_screen(void) |
|
{ |
|
is_full_screen = !is_full_screen; |
|
if (!fs_screen_width) { |
|
/* use default SDL method */ |
|
// SDL_WM_ToggleFullScreen(screen); |
|
} |
|
video_open(cur_stream); |
|
} |
|
|
|
static void toggle_pause(void) |
|
{ |
|
if (cur_stream) |
|
stream_pause(cur_stream); |
|
step = 0; |
|
} |
|
|
|
static void step_to_next_frame(void) |
|
{ |
|
if (cur_stream) { |
|
/* if the stream is paused unpause it, then step */ |
|
if (cur_stream->paused) |
|
stream_pause(cur_stream); |
|
} |
|
step = 1; |
|
} |
|
|
|
static void toggle_audio_display(void) |
|
{ |
|
if (cur_stream) { |
|
int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); |
|
cur_stream->show_audio = (cur_stream->show_audio + 1) % 3; |
|
fill_rectangle(screen, |
|
cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height, |
|
bgcolor); |
|
SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height); |
|
} |
|
} |
|
|
|
/* handle an event sent by the GUI */ |
|
static void event_loop(void) |
|
{ |
|
SDL_Event event; |
|
double incr, pos, frac; |
|
|
|
for(;;) { |
|
double x; |
|
SDL_WaitEvent(&event); |
|
switch(event.type) { |
|
case SDL_KEYDOWN: |
|
if (exit_on_keydown) { |
|
do_exit(); |
|
break; |
|
} |
|
switch(event.key.keysym.sym) { |
|
case SDLK_ESCAPE: |
|
case SDLK_q: |
|
do_exit(); |
|
break; |
|
case SDLK_f: |
|
toggle_full_screen(); |
|
break; |
|
case SDLK_p: |
|
case SDLK_SPACE: |
|
toggle_pause(); |
|
break; |
|
case SDLK_s: //S: Step to next frame |
|
step_to_next_frame(); |
|
break; |
|
case SDLK_a: |
|
if (cur_stream) |
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); |
|
break; |
|
case SDLK_v: |
|
if (cur_stream) |
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); |
|
break; |
|
case SDLK_t: |
|
if (cur_stream) |
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); |
|
break; |
|
case SDLK_w: |
|
toggle_audio_display(); |
|
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 (cur_stream) { |
|
if (seek_by_bytes) { |
|
if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){ |
|
pos= cur_stream->video_current_pos; |
|
}else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){ |
|
pos= cur_stream->audio_pkt.pos; |
|
}else |
|
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); |
|
pos += incr; |
|
stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0); |
|
} |
|
} |
|
break; |
|
default: |
|
break; |
|
} |
|
break; |
|
case SDL_MOUSEBUTTONDOWN: |
|
if (exit_on_mousedown) { |
|
do_exit(); |
|
break; |
|
} |
|
case SDL_MOUSEMOTION: |
|
if(event.type ==SDL_MOUSEBUTTONDOWN){ |
|
x= event.button.x; |
|
}else{ |
|
if(event.motion.state != SDL_PRESSED) |
|
break; |
|
x= event.motion.x; |
|
} |
|
if (cur_stream) { |
|
if(seek_by_bytes || cur_stream->ic->duration<=0){ |
|
uint64_t size= url_fsize(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); |
|
fprintf(stderr, "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: |
|
if (cur_stream) { |
|
screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0, |
|
SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL); |
|
screen_width = cur_stream->width = event.resize.w; |
|
screen_height= cur_stream->height= event.resize.h; |
|
} |
|
break; |
|
case SDL_QUIT: |
|
case FF_QUIT_EVENT: |
|
do_exit(); |
|
break; |
|
case FF_ALLOC_EVENT: |
|
video_open(event.user.data1); |
|
alloc_picture(event.user.data1); |
|
break; |
|
case FF_REFRESH_EVENT: |
|
video_refresh_timer(event.user.data1); |
|
cur_stream->refresh=0; |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
} |
|
|
|
static void opt_frame_size(const char *arg) |
|
{ |
|
if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) { |
|
fprintf(stderr, "Incorrect frame size\n"); |
|
exit(1); |
|
} |
|
if ((frame_width % 2) != 0 || (frame_height % 2) != 0) { |
|
fprintf(stderr, "Frame size must be a multiple of 2\n"); |
|
exit(1); |
|
} |
|
} |
|
|
|
static int opt_width(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(const char *opt, const char *arg) |
|
{ |
|
screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); |
|
return 0; |
|
} |
|
|
|
static void opt_format(const char *arg) |
|
{ |
|
file_iformat = av_find_input_format(arg); |
|
if (!file_iformat) { |
|
fprintf(stderr, "Unknown input format: %s\n", arg); |
|
exit(1); |
|
} |
|
} |
|
|
|
static void opt_frame_pix_fmt(const char *arg) |
|
{ |
|
frame_pix_fmt = av_get_pix_fmt(arg); |
|
} |
|
|
|
static int opt_sync(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 { |
|
fprintf(stderr, "Unknown value for %s: %s\n", opt, arg); |
|
exit(1); |
|
} |
|
return 0; |
|
} |
|
|
|
static int opt_seek(const char *opt, const char *arg) |
|
{ |
|
start_time = parse_time_or_die(opt, arg, 1); |
|
return 0; |
|
} |
|
|
|
static int opt_duration(const char *opt, const char *arg) |
|
{ |
|
duration = parse_time_or_die(opt, arg, 1); |
|
return 0; |
|
} |
|
|
|
static int opt_debug(const char *opt, const char *arg) |
|
{ |
|
av_log_set_level(99); |
|
debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX); |
|
return 0; |
|
} |
|
|
|
static int opt_vismv(const char *opt, const char *arg) |
|
{ |
|
debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX); |
|
return 0; |
|
} |
|
|
|
static int opt_thread_count(const char *opt, const char *arg) |
|
{ |
|
thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX); |
|
#if !HAVE_THREADS |
|
fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n"); |
|
#endif |
|
return 0; |
|
} |
|
|
|
static const OptionDef options[] = { |
|
#include "cmdutils_common_opts.h" |
|
{ "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" }, |
|
{ "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" }, |
|
{ "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" }, |
|
{ "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" }, |
|
{ "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" }, |
|
{ "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" }, |
|
{ "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" }, |
|
{ "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" }, |
|
{ "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" }, |
|
{ "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" }, |
|
{ "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" }, |
|
{ "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" }, |
|
{ "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" }, |
|
{ "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" }, |
|
{ "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" }, |
|
{ "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" }, |
|
{ "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" }, |
|
{ "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" }, |
|
{ "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" }, |
|
{ "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" }, |
|
{ "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" }, |
|
{ "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""}, |
|
{ "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" }, |
|
{ "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" }, |
|
{ "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" }, |
|
{ "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" }, |
|
{ "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" }, |
|
{ "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" }, |
|
{ "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" }, |
|
{ "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" }, |
|
{ "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" }, |
|
{ "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" }, |
|
{ "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" }, |
|
{ "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" }, |
|
{ "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" }, |
|
{ "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" }, |
|
{ "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" }, |
|
#if CONFIG_AVFILTER |
|
{ "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" }, |
|
#endif |
|
{ "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" }, |
|
{ "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" }, |
|
{ NULL, }, |
|
}; |
|
|
|
static void show_usage(void) |
|
{ |
|
printf("Simple media player\n"); |
|
printf("usage: ffplay [options] input_file\n"); |
|
printf("\n"); |
|
} |
|
|
|
static void show_help(void) |
|
{ |
|
av_log_set_callback(log_callback_help); |
|
show_usage(); |
|
show_help_options(options, "Main options:\n", |
|
OPT_EXPERT, 0); |
|
show_help_options(options, "\nAdvanced options:\n", |
|
OPT_EXPERT, OPT_EXPERT); |
|
printf("\n"); |
|
av_opt_show2(avcodec_opts[0], NULL, |
|
AV_OPT_FLAG_DECODING_PARAM, 0); |
|
printf("\n"); |
|
av_opt_show2(avformat_opts, NULL, |
|
AV_OPT_FLAG_DECODING_PARAM, 0); |
|
#if !CONFIG_AVFILTER |
|
printf("\n"); |
|
av_opt_show2(sws_opts, NULL, |
|
AV_OPT_FLAG_ENCODING_PARAM, 0); |
|
#endif |
|
printf("\nWhile playing:\n" |
|
"q, ESC quit\n" |
|
"f toggle full screen\n" |
|
"p, SPC pause\n" |
|
"a cycle audio channel\n" |
|
"v cycle video channel\n" |
|
"t cycle subtitle channel\n" |
|
"w show audio waves\n" |
|
"s activate frame-step mode\n" |
|
"left/right seek backward/forward 10 seconds\n" |
|
"down/up seek backward/forward 1 minute\n" |
|
"mouse click seek to percentage in file corresponding to fraction of width\n" |
|
); |
|
} |
|
|
|
static void opt_input_file(const char *filename) |
|
{ |
|
if (input_filename) { |
|
fprintf(stderr, "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; |
|
} |
|
|
|
/* Called from the main */ |
|
int main(int argc, char **argv) |
|
{ |
|
int flags; |
|
|
|
av_log_set_flags(AV_LOG_SKIP_REPEATED); |
|
|
|
/* register all codecs, demux and protocols */ |
|
avcodec_register_all(); |
|
#if CONFIG_AVDEVICE |
|
avdevice_register_all(); |
|
#endif |
|
#if CONFIG_AVFILTER |
|
avfilter_register_all(); |
|
#endif |
|
av_register_all(); |
|
|
|
init_opts(); |
|
|
|
show_banner(); |
|
|
|
parse_options(argc, argv, options, opt_input_file); |
|
|
|
if (!input_filename) { |
|
show_usage(); |
|
fprintf(stderr, "An input file must be specified\n"); |
|
fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n"); |
|
exit(1); |
|
} |
|
|
|
if (display_disable) { |
|
video_disable = 1; |
|
} |
|
flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER; |
|
#if !defined(__MINGW32__) && !defined(__APPLE__) |
|
flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */ |
|
#endif |
|
if (SDL_Init (flags)) { |
|
fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError()); |
|
exit(1); |
|
} |
|
|
|
if (!display_disable) { |
|
#if HAVE_SDL_VIDEO_SIZE |
|
const SDL_VideoInfo *vi = SDL_GetVideoInfo(); |
|
fs_screen_width = vi->current_w; |
|
fs_screen_height = vi->current_h; |
|
#endif |
|
} |
|
|
|
SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE); |
|
SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE); |
|
SDL_EventState(SDL_USEREVENT, SDL_IGNORE); |
|
|
|
av_init_packet(&flush_pkt); |
|
flush_pkt.data= "FLUSH"; |
|
|
|
cur_stream = stream_open(input_filename, file_iformat); |
|
|
|
event_loop(); |
|
|
|
/* never returns */ |
|
|
|
return 0; |
|
}
|
|
|