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3215 lines
117 KiB
3215 lines
117 KiB
/* |
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* Apple HTTP Live Streaming segmenter |
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* Copyright (c) 2012, Luca Barbato |
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* Copyright (c) 2017 Akamai Technologies, Inc. |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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#include "config.h" |
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#include "config_components.h" |
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#include <stdint.h> |
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#include <time.h> |
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#if HAVE_UNISTD_H |
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#include <unistd.h> |
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#endif |
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|
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#include "libavutil/avassert.h" |
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#include "libavutil/mathematics.h" |
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#include "libavutil/avstring.h" |
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#include "libavutil/bprint.h" |
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#include "libavutil/intreadwrite.h" |
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#include "libavutil/opt.h" |
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#include "libavutil/log.h" |
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#include "libavutil/random_seed.h" |
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#include "libavutil/time.h" |
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#include "libavutil/time_internal.h" |
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|
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#include "libavcodec/defs.h" |
|
|
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#include "avformat.h" |
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#include "avio_internal.h" |
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#include "avc.h" |
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#if CONFIG_HTTP_PROTOCOL |
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#include "http.h" |
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#endif |
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#include "hlsplaylist.h" |
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#include "internal.h" |
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#include "mux.h" |
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#include "os_support.h" |
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#include "url.h" |
|
|
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typedef enum { |
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HLS_START_SEQUENCE_AS_START_NUMBER = 0, |
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HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH = 1, |
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HLS_START_SEQUENCE_AS_FORMATTED_DATETIME = 2, // YYYYMMDDhhmmss |
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HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH = 3, |
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HLS_START_SEQUENCE_LAST, // unused |
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} StartSequenceSourceType; |
|
|
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typedef enum { |
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CODEC_ATTRIBUTE_WRITTEN = 0, |
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CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN, |
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} CodecAttributeStatus; |
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|
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#define KEYSIZE 16 |
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#define LINE_BUFFER_SIZE MAX_URL_SIZE |
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#define HLS_MICROSECOND_UNIT 1000000 |
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#define BUFSIZE (16 * 1024) |
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#define POSTFIX_PATTERN "_%d" |
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|
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typedef struct HLSSegment { |
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char filename[MAX_URL_SIZE]; |
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char sub_filename[MAX_URL_SIZE]; |
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double duration; /* in seconds */ |
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int discont; |
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int64_t pos; |
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int64_t size; |
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int64_t keyframe_pos; |
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int64_t keyframe_size; |
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unsigned var_stream_idx; |
|
|
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char key_uri[LINE_BUFFER_SIZE + 1]; |
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char iv_string[KEYSIZE*2 + 1]; |
|
|
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struct HLSSegment *next; |
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double discont_program_date_time; |
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} HLSSegment; |
|
|
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typedef enum HLSFlags { |
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// Generate a single media file and use byte ranges in the playlist. |
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HLS_SINGLE_FILE = (1 << 0), |
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HLS_DELETE_SEGMENTS = (1 << 1), |
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HLS_ROUND_DURATIONS = (1 << 2), |
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HLS_DISCONT_START = (1 << 3), |
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HLS_OMIT_ENDLIST = (1 << 4), |
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HLS_SPLIT_BY_TIME = (1 << 5), |
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HLS_APPEND_LIST = (1 << 6), |
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HLS_PROGRAM_DATE_TIME = (1 << 7), |
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HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d |
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HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t |
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HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s |
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HLS_TEMP_FILE = (1 << 11), |
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HLS_PERIODIC_REKEY = (1 << 12), |
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HLS_INDEPENDENT_SEGMENTS = (1 << 13), |
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HLS_I_FRAMES_ONLY = (1 << 14), |
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} HLSFlags; |
|
|
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typedef enum { |
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SEGMENT_TYPE_MPEGTS, |
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SEGMENT_TYPE_FMP4, |
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} SegmentType; |
|
|
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typedef struct VariantStream { |
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unsigned var_stream_idx; |
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unsigned number; |
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int64_t sequence; |
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const AVOutputFormat *oformat; |
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const AVOutputFormat *vtt_oformat; |
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AVIOContext *out; |
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AVIOContext *out_single_file; |
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int packets_written; |
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int init_range_length; |
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uint8_t *temp_buffer; |
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uint8_t *init_buffer; |
|
|
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AVFormatContext *avf; |
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AVFormatContext *vtt_avf; |
|
|
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int has_video; |
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int has_subtitle; |
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int new_start; |
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int start_pts_from_audio; |
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double dpp; // duration per packet |
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int64_t start_pts; |
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int64_t end_pts; |
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int64_t video_lastpos; |
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int64_t video_keyframe_pos; |
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int64_t video_keyframe_size; |
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double duration; // last segment duration computed so far, in seconds |
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int64_t start_pos; // last segment starting position |
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int64_t size; // last segment size |
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int nb_entries; |
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int discontinuity_set; |
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int discontinuity; |
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int reference_stream_index; |
|
|
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HLSSegment *segments; |
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HLSSegment *last_segment; |
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HLSSegment *old_segments; |
|
|
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char *basename_tmp; |
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char *basename; |
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char *vtt_basename; |
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char *vtt_m3u8_name; |
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char *m3u8_name; |
|
|
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double initial_prog_date_time; |
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char current_segment_final_filename_fmt[MAX_URL_SIZE]; // when renaming segments |
|
|
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char *fmp4_init_filename; |
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char *base_output_dirname; |
|
|
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int encrypt_started; |
|
|
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char key_file[LINE_BUFFER_SIZE + 1]; |
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char key_uri[LINE_BUFFER_SIZE + 1]; |
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char key_string[KEYSIZE*2 + 1]; |
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char iv_string[KEYSIZE*2 + 1]; |
|
|
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AVStream **streams; |
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char codec_attr[128]; |
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CodecAttributeStatus attr_status; |
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unsigned int nb_streams; |
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int m3u8_created; /* status of media play-list creation */ |
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int is_default; /* default status of audio group */ |
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const char *language; /* audio language name */ |
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const char *agroup; /* audio group name */ |
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const char *sgroup; /* subtitle group name */ |
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const char *ccgroup; /* closed caption group name */ |
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const char *varname; /* variant name */ |
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} VariantStream; |
|
|
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typedef struct ClosedCaptionsStream { |
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const char *ccgroup; /* closed caption group name */ |
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const char *instreamid; /* closed captions INSTREAM-ID */ |
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const char *language; /* closed captions language */ |
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} ClosedCaptionsStream; |
|
|
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typedef struct HLSContext { |
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const AVClass *class; // Class for private options. |
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int64_t start_sequence; |
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uint32_t start_sequence_source_type; // enum StartSequenceSourceType |
|
|
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int64_t time; // Set by a private option. |
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int64_t init_time; // Set by a private option. |
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int max_nb_segments; // Set by a private option. |
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int hls_delete_threshold; // Set by a private option. |
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uint32_t flags; // enum HLSFlags |
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uint32_t pl_type; // enum PlaylistType |
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char *segment_filename; |
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char *fmp4_init_filename; |
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int segment_type; |
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int resend_init_file; ///< resend init file into disk after refresh m3u8 |
|
|
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int use_localtime; ///< flag to expand filename with localtime |
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int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename |
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int allowcache; |
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int64_t recording_time; |
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int64_t max_seg_size; // every segment file max size |
|
|
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char *baseurl; |
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char *vtt_format_options_str; |
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char *subtitle_filename; |
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AVDictionary *format_options; |
|
|
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int encrypt; |
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char *key; |
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char *key_url; |
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char *iv; |
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char *key_basename; |
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int encrypt_started; |
|
|
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char *key_info_file; |
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char key_file[LINE_BUFFER_SIZE + 1]; |
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char key_uri[LINE_BUFFER_SIZE + 1]; |
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char key_string[KEYSIZE*2 + 1]; |
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char iv_string[KEYSIZE*2 + 1]; |
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AVDictionary *vtt_format_options; |
|
|
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char *method; |
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char *user_agent; |
|
|
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VariantStream *var_streams; |
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unsigned int nb_varstreams; |
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ClosedCaptionsStream *cc_streams; |
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unsigned int nb_ccstreams; |
|
|
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int master_m3u8_created; /* status of master play-list creation */ |
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char *master_m3u8_url; /* URL of the master m3u8 file */ |
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int version; /* HLS version */ |
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char *var_stream_map; /* user specified variant stream map string */ |
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char *cc_stream_map; /* user specified closed caption streams map string */ |
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char *master_pl_name; |
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unsigned int master_publish_rate; |
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int http_persistent; |
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AVIOContext *m3u8_out; |
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AVIOContext *sub_m3u8_out; |
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AVIOContext *http_delete; |
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int64_t timeout; |
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int ignore_io_errors; |
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char *headers; |
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int has_default_key; /* has DEFAULT field of var_stream_map */ |
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int has_video_m3u8; /* has video stream m3u8 list */ |
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} HLSContext; |
|
|
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static int strftime_expand(const char *fmt, char **dest) |
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{ |
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int r = 1; |
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time_t now0; |
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struct tm *tm, tmpbuf; |
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char *buf; |
|
|
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buf = av_mallocz(MAX_URL_SIZE); |
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if (!buf) |
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return AVERROR(ENOMEM); |
|
|
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time(&now0); |
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tm = localtime_r(&now0, &tmpbuf); |
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r = strftime(buf, MAX_URL_SIZE, fmt, tm); |
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if (!r) { |
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av_free(buf); |
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return AVERROR(EINVAL); |
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} |
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*dest = buf; |
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|
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return r; |
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} |
|
|
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static int hlsenc_io_open(AVFormatContext *s, AVIOContext **pb, const char *filename, |
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AVDictionary **options) |
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{ |
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HLSContext *hls = s->priv_data; |
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int http_base_proto = filename ? ff_is_http_proto(filename) : 0; |
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int err = AVERROR_MUXER_NOT_FOUND; |
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if (!*pb || !http_base_proto || !hls->http_persistent) { |
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err = s->io_open(s, pb, filename, AVIO_FLAG_WRITE, options); |
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#if CONFIG_HTTP_PROTOCOL |
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} else { |
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URLContext *http_url_context = ffio_geturlcontext(*pb); |
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av_assert0(http_url_context); |
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err = ff_http_do_new_request(http_url_context, filename); |
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if (err < 0) |
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ff_format_io_close(s, pb); |
|
|
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#endif |
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} |
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return err; |
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} |
|
|
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static int hlsenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename) |
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{ |
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HLSContext *hls = s->priv_data; |
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int http_base_proto = filename ? ff_is_http_proto(filename) : 0; |
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int ret = 0; |
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if (!*pb) |
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return ret; |
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if (!http_base_proto || !hls->http_persistent || hls->key_info_file || hls->encrypt) { |
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ff_format_io_close(s, pb); |
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#if CONFIG_HTTP_PROTOCOL |
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} else { |
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URLContext *http_url_context = ffio_geturlcontext(*pb); |
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av_assert0(http_url_context); |
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avio_flush(*pb); |
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ret = ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE); |
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#endif |
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} |
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return ret; |
|
} |
|
|
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static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c) |
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{ |
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int http_base_proto = ff_is_http_proto(s->url); |
|
|
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if (c->method) { |
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av_dict_set(options, "method", c->method, 0); |
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} else if (http_base_proto) { |
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av_dict_set(options, "method", "PUT", 0); |
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} |
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if (c->user_agent) |
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av_dict_set(options, "user_agent", c->user_agent, 0); |
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if (c->http_persistent) |
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av_dict_set_int(options, "multiple_requests", 1, 0); |
|
if (c->timeout >= 0) |
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av_dict_set_int(options, "timeout", c->timeout, 0); |
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if (c->headers) |
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av_dict_set(options, "headers", c->headers, 0); |
|
} |
|
|
|
static void write_codec_attr(AVStream *st, VariantStream *vs) |
|
{ |
|
int codec_strlen = strlen(vs->codec_attr); |
|
char attr[32]; |
|
|
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if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) |
|
return; |
|
if (vs->attr_status == CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN) |
|
return; |
|
|
|
if (st->codecpar->codec_id == AV_CODEC_ID_H264) { |
|
uint8_t *data = st->codecpar->extradata; |
|
if (data) { |
|
const uint8_t *p; |
|
|
|
if (AV_RB32(data) == 0x01 && (data[4] & 0x1F) == 7) |
|
p = &data[5]; |
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else if (AV_RB24(data) == 0x01 && (data[3] & 0x1F) == 7) |
|
p = &data[4]; |
|
else if (data[0] == 0x01) /* avcC */ |
|
p = &data[1]; |
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else |
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goto fail; |
|
snprintf(attr, sizeof(attr), |
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"avc1.%02x%02x%02x", p[0], p[1], p[2]); |
|
} else { |
|
goto fail; |
|
} |
|
} else if (st->codecpar->codec_id == AV_CODEC_ID_HEVC) { |
|
uint8_t *data = st->codecpar->extradata; |
|
int profile = AV_PROFILE_UNKNOWN; |
|
int level = AV_LEVEL_UNKNOWN; |
|
|
|
if (st->codecpar->profile != AV_PROFILE_UNKNOWN) |
|
profile = st->codecpar->profile; |
|
if (st->codecpar->level != AV_LEVEL_UNKNOWN) |
|
level = st->codecpar->level; |
|
|
|
/* check the boundary of data which from current position is small than extradata_size */ |
|
while (data && (data - st->codecpar->extradata + 19) < st->codecpar->extradata_size) { |
|
/* get HEVC SPS NAL and seek to profile_tier_level */ |
|
if (!(data[0] | data[1] | data[2]) && data[3] == 1 && ((data[4] & 0x7E) == 0x42)) { |
|
uint8_t *rbsp_buf; |
|
int remain_size = 0; |
|
int rbsp_size = 0; |
|
/* skip start code + nalu header */ |
|
data += 6; |
|
/* process by reference General NAL unit syntax */ |
|
remain_size = st->codecpar->extradata_size - (data - st->codecpar->extradata); |
|
rbsp_buf = ff_nal_unit_extract_rbsp(data, remain_size, &rbsp_size, 0); |
|
if (!rbsp_buf) |
|
return; |
|
if (rbsp_size < 13) { |
|
av_freep(&rbsp_buf); |
|
break; |
|
} |
|
/* skip sps_video_parameter_set_id u(4), |
|
* sps_max_sub_layers_minus1 u(3), |
|
* and sps_temporal_id_nesting_flag u(1) */ |
|
profile = rbsp_buf[1] & 0x1f; |
|
/* skip 8 + 8 + 32 + 4 + 43 + 1 bit */ |
|
level = rbsp_buf[12]; |
|
av_freep(&rbsp_buf); |
|
break; |
|
} |
|
data++; |
|
} |
|
if (st->codecpar->codec_tag == MKTAG('h','v','c','1') && |
|
profile != AV_PROFILE_UNKNOWN && |
|
level != AV_LEVEL_UNKNOWN) { |
|
snprintf(attr, sizeof(attr), "%s.%d.4.L%d.B01", av_fourcc2str(st->codecpar->codec_tag), profile, level); |
|
} else |
|
goto fail; |
|
} else if (st->codecpar->codec_id == AV_CODEC_ID_MP2) { |
|
snprintf(attr, sizeof(attr), "mp4a.40.33"); |
|
} else if (st->codecpar->codec_id == AV_CODEC_ID_MP3) { |
|
snprintf(attr, sizeof(attr), "mp4a.40.34"); |
|
} else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) { |
|
if (st->codecpar->profile != AV_PROFILE_UNKNOWN) |
|
snprintf(attr, sizeof(attr), "mp4a.40.%d", st->codecpar->profile+1); |
|
else |
|
// This is for backward compatibility with the previous implementation. |
|
snprintf(attr, sizeof(attr), "mp4a.40.2"); |
|
} else if (st->codecpar->codec_id == AV_CODEC_ID_AC3) { |
|
snprintf(attr, sizeof(attr), "ac-3"); |
|
} else if (st->codecpar->codec_id == AV_CODEC_ID_EAC3) { |
|
snprintf(attr, sizeof(attr), "ec-3"); |
|
} else { |
|
goto fail; |
|
} |
|
// Don't write the same attribute multiple times |
|
if (!av_stristr(vs->codec_attr, attr)) { |
|
snprintf(vs->codec_attr + codec_strlen, |
|
sizeof(vs->codec_attr) - codec_strlen, |
|
"%s%s", codec_strlen ? "," : "", attr); |
|
} |
|
return; |
|
|
|
fail: |
|
vs->codec_attr[0] = '\0'; |
|
vs->attr_status = CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN; |
|
return; |
|
} |
|
|
|
static int replace_str_data_in_filename(char **s, const char *filename, char placeholder, const char *datastring) |
|
{ |
|
const char *p; |
|
char c; |
|
int addchar_count; |
|
int found_count = 0; |
|
AVBPrint buf; |
|
int ret; |
|
|
|
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED); |
|
|
|
p = filename; |
|
for (;;) { |
|
c = *p; |
|
if (c == '\0') |
|
break; |
|
if (c == '%' && *(p+1) == '%') // %% |
|
addchar_count = 2; |
|
else if (c == '%' && *(p+1) == placeholder) { |
|
av_bprintf(&buf, "%s", datastring); |
|
p += 2; |
|
addchar_count = 0; |
|
found_count ++; |
|
} else |
|
addchar_count = 1; |
|
|
|
if (addchar_count > 0) { |
|
av_bprint_append_data(&buf, p, addchar_count); |
|
p += addchar_count; |
|
} |
|
} |
|
if (!av_bprint_is_complete(&buf)) { |
|
av_bprint_finalize(&buf, NULL); |
|
return AVERROR(ENOMEM); |
|
} |
|
if ((ret = av_bprint_finalize(&buf, s)) < 0) |
|
return ret; |
|
return found_count; |
|
} |
|
|
|
static int replace_int_data_in_filename(char **s, const char *filename, char placeholder, int64_t number) |
|
{ |
|
const char *p; |
|
char c; |
|
int nd, addchar_count; |
|
int found_count = 0; |
|
AVBPrint buf; |
|
int ret; |
|
|
|
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED); |
|
|
|
p = filename; |
|
for (;;) { |
|
c = *p; |
|
if (c == '\0') |
|
break; |
|
if (c == '%' && *(p+1) == '%') // %% |
|
addchar_count = 2; |
|
else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) { |
|
nd = 0; |
|
addchar_count = 1; |
|
while (av_isdigit(*(p + addchar_count))) { |
|
nd = nd * 10 + *(p + addchar_count) - '0'; |
|
addchar_count++; |
|
} |
|
|
|
if (*(p + addchar_count) == placeholder) { |
|
av_bprintf(&buf, "%0*"PRId64, (number < 0) ? nd : nd++, number); |
|
p += (addchar_count + 1); |
|
addchar_count = 0; |
|
found_count++; |
|
} |
|
|
|
} else |
|
addchar_count = 1; |
|
|
|
av_bprint_append_data(&buf, p, addchar_count); |
|
p += addchar_count; |
|
} |
|
if (!av_bprint_is_complete(&buf)) { |
|
av_bprint_finalize(&buf, NULL); |
|
return AVERROR(ENOMEM); |
|
} |
|
if ((ret = av_bprint_finalize(&buf, s)) < 0) |
|
return ret; |
|
return found_count; |
|
} |
|
|
|
static void write_styp(AVIOContext *pb) |
|
{ |
|
avio_wb32(pb, 24); |
|
ffio_wfourcc(pb, "styp"); |
|
ffio_wfourcc(pb, "msdh"); |
|
avio_wb32(pb, 0); /* minor */ |
|
ffio_wfourcc(pb, "msdh"); |
|
ffio_wfourcc(pb, "msix"); |
|
} |
|
|
|
static int flush_dynbuf(VariantStream *vs, int *range_length) |
|
{ |
|
AVFormatContext *ctx = vs->avf; |
|
|
|
if (!ctx->pb) { |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
// flush |
|
av_write_frame(ctx, NULL); |
|
|
|
// write out to file |
|
*range_length = avio_close_dyn_buf(ctx->pb, &vs->temp_buffer); |
|
ctx->pb = NULL; |
|
avio_write(vs->out, vs->temp_buffer, *range_length); |
|
avio_flush(vs->out); |
|
|
|
// re-open buffer |
|
return avio_open_dyn_buf(&ctx->pb); |
|
} |
|
|
|
static void reflush_dynbuf(VariantStream *vs, int *range_length) |
|
{ |
|
// re-open buffer |
|
avio_write(vs->out, vs->temp_buffer, *range_length); |
|
} |
|
|
|
#if HAVE_DOS_PATHS |
|
#define SEPARATOR '\\' |
|
#else |
|
#define SEPARATOR '/' |
|
#endif |
|
|
|
static int hls_delete_file(HLSContext *hls, AVFormatContext *avf, |
|
char *path, const char *proto) |
|
{ |
|
if (hls->method || (proto && !av_strcasecmp(proto, "http"))) { |
|
AVDictionary *opt = NULL; |
|
int ret; |
|
|
|
set_http_options(avf, &opt, hls); |
|
av_dict_set(&opt, "method", "DELETE", 0); |
|
|
|
ret = hlsenc_io_open(avf, &hls->http_delete, path, &opt); |
|
av_dict_free(&opt); |
|
if (ret < 0) |
|
return hls->ignore_io_errors ? 1 : ret; |
|
|
|
//Nothing to write |
|
hlsenc_io_close(avf, &hls->http_delete, path); |
|
} else if (unlink(path) < 0) { |
|
av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n", |
|
path, strerror(errno)); |
|
} |
|
return 0; |
|
} |
|
|
|
static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls, |
|
VariantStream *vs) |
|
{ |
|
|
|
HLSSegment *segment, *previous_segment = NULL; |
|
float playlist_duration = 0.0f; |
|
int ret = 0; |
|
int segment_cnt = 0; |
|
AVBPrint path; |
|
const char *dirname = NULL; |
|
char *dirname_r = NULL; |
|
char *dirname_repl = NULL; |
|
const char *vtt_dirname = NULL; |
|
char *vtt_dirname_r = NULL; |
|
const char *proto = NULL; |
|
|
|
av_bprint_init(&path, 0, AV_BPRINT_SIZE_UNLIMITED); |
|
|
|
segment = vs->segments; |
|
while (segment) { |
|
playlist_duration += segment->duration; |
|
segment = segment->next; |
|
} |
|
|
|
segment = vs->old_segments; |
|
segment_cnt = 0; |
|
while (segment) { |
|
playlist_duration -= segment->duration; |
|
previous_segment = segment; |
|
segment = previous_segment->next; |
|
segment_cnt++; |
|
if (playlist_duration <= -previous_segment->duration) { |
|
previous_segment->next = NULL; |
|
break; |
|
} |
|
if (segment_cnt >= hls->hls_delete_threshold) { |
|
previous_segment->next = NULL; |
|
break; |
|
} |
|
} |
|
|
|
if (segment && !hls->use_localtime_mkdir) { |
|
dirname_r = hls->segment_filename ? av_strdup(hls->segment_filename): av_strdup(vs->avf->url); |
|
dirname = av_dirname(dirname_r); |
|
} |
|
|
|
/* if %v is present in the file's directory |
|
* all segment belongs to the same variant, so do it only once before the loop*/ |
|
if (dirname && av_stristr(dirname, "%v")) { |
|
if (!vs->varname) { |
|
if (replace_int_data_in_filename(&dirname_repl, dirname, 'v', segment->var_stream_idx) < 1) { |
|
ret = AVERROR(EINVAL); |
|
goto fail; |
|
} |
|
} else { |
|
if (replace_str_data_in_filename(&dirname_repl, dirname, 'v', vs->varname) < 1) { |
|
ret = AVERROR(EINVAL); |
|
goto fail; |
|
} |
|
} |
|
|
|
dirname = dirname_repl; |
|
} |
|
|
|
while (segment) { |
|
av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n", |
|
segment->filename); |
|
if (!hls->use_localtime_mkdir) // segment->filename contains basename only |
|
av_bprintf(&path, "%s%c", dirname, SEPARATOR); |
|
av_bprintf(&path, "%s", segment->filename); |
|
|
|
if (!av_bprint_is_complete(&path)) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
|
|
proto = avio_find_protocol_name(s->url); |
|
if (ret = hls_delete_file(hls, s, path.str, proto)) |
|
goto fail; |
|
|
|
if ((segment->sub_filename[0] != '\0')) { |
|
vtt_dirname_r = av_strdup(vs->vtt_avf->url); |
|
vtt_dirname = av_dirname(vtt_dirname_r); |
|
|
|
av_bprint_clear(&path); |
|
av_bprintf(&path, "%s%c%s", vtt_dirname, SEPARATOR, |
|
segment->sub_filename); |
|
av_freep(&vtt_dirname_r); |
|
|
|
if (!av_bprint_is_complete(&path)) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
|
|
if (ret = hls_delete_file(hls, s, path.str, proto)) |
|
goto fail; |
|
} |
|
av_bprint_clear(&path); |
|
previous_segment = segment; |
|
segment = previous_segment->next; |
|
av_freep(&previous_segment); |
|
} |
|
|
|
fail: |
|
av_bprint_finalize(&path, NULL); |
|
av_freep(&dirname_r); |
|
av_freep(&dirname_repl); |
|
|
|
return ret; |
|
} |
|
|
|
static int do_encrypt(AVFormatContext *s, VariantStream *vs) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
int ret; |
|
int len; |
|
AVIOContext *pb; |
|
uint8_t key[KEYSIZE]; |
|
char * key_basename_source = (hls->master_m3u8_url) ? hls->master_m3u8_url : s->url; |
|
|
|
len = strlen(key_basename_source) + 4 + 1; |
|
hls->key_basename = av_mallocz(len); |
|
if (!hls->key_basename) |
|
return AVERROR(ENOMEM); |
|
|
|
av_strlcpy(hls->key_basename, key_basename_source, len); |
|
av_strlcat(hls->key_basename, ".key", len); |
|
|
|
if (hls->key_url) { |
|
av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file)); |
|
av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri)); |
|
} else { |
|
av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file)); |
|
av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri)); |
|
} |
|
|
|
if (!*hls->iv_string) { |
|
uint8_t iv[16] = { 0 }; |
|
char buf[33]; |
|
|
|
if (!hls->iv) { |
|
AV_WB64(iv + 8, vs->sequence); |
|
} else { |
|
memcpy(iv, hls->iv, sizeof(iv)); |
|
} |
|
ff_data_to_hex(buf, iv, sizeof(iv), 0); |
|
memcpy(hls->iv_string, buf, sizeof(hls->iv_string)); |
|
} |
|
|
|
if (!*hls->key_uri) { |
|
av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
if (!*hls->key_file) { |
|
av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
if (!*hls->key_string) { |
|
AVDictionary *options = NULL; |
|
if (!hls->key) { |
|
if ((ret = av_random_bytes(key, sizeof(key))) < 0) { |
|
av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n"); |
|
return ret; |
|
} |
|
} else { |
|
memcpy(key, hls->key, sizeof(key)); |
|
} |
|
|
|
ff_data_to_hex(hls->key_string, key, sizeof(key), 0); |
|
set_http_options(s, &options, hls); |
|
ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, &options); |
|
av_dict_free(&options); |
|
if (ret < 0) |
|
return ret; |
|
avio_seek(pb, 0, SEEK_CUR); |
|
avio_write(pb, key, KEYSIZE); |
|
avio_close(pb); |
|
} |
|
return 0; |
|
} |
|
|
|
|
|
static int hls_encryption_start(AVFormatContext *s, VariantStream *vs) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
int ret; |
|
AVIOContext *pb; |
|
uint8_t key[KEYSIZE]; |
|
AVDictionary *options = NULL; |
|
|
|
set_http_options(s, &options, hls); |
|
ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, &options); |
|
av_dict_free(&options); |
|
if (ret < 0) { |
|
av_log(hls, AV_LOG_ERROR, |
|
"error opening key info file %s\n", hls->key_info_file); |
|
return ret; |
|
} |
|
|
|
ff_get_line(pb, vs->key_uri, sizeof(vs->key_uri)); |
|
vs->key_uri[strcspn(vs->key_uri, "\r\n")] = '\0'; |
|
|
|
ff_get_line(pb, vs->key_file, sizeof(vs->key_file)); |
|
vs->key_file[strcspn(vs->key_file, "\r\n")] = '\0'; |
|
|
|
ff_get_line(pb, vs->iv_string, sizeof(vs->iv_string)); |
|
vs->iv_string[strcspn(vs->iv_string, "\r\n")] = '\0'; |
|
|
|
ff_format_io_close(s, &pb); |
|
|
|
if (!*vs->key_uri) { |
|
av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
if (!*vs->key_file) { |
|
av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
set_http_options(s, &options, hls); |
|
ret = s->io_open(s, &pb, vs->key_file, AVIO_FLAG_READ, &options); |
|
av_dict_free(&options); |
|
if (ret < 0) { |
|
av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", vs->key_file); |
|
return ret; |
|
} |
|
|
|
ret = avio_read(pb, key, sizeof(key)); |
|
ff_format_io_close(s, &pb); |
|
if (ret != sizeof(key)) { |
|
av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", vs->key_file); |
|
if (ret >= 0 || ret == AVERROR_EOF) |
|
ret = AVERROR(EINVAL); |
|
return ret; |
|
} |
|
ff_data_to_hex(vs->key_string, key, sizeof(key), 0); |
|
|
|
return 0; |
|
} |
|
|
|
static int hls_mux_init(AVFormatContext *s, VariantStream *vs) |
|
{ |
|
AVDictionary *options = NULL; |
|
HLSContext *hls = s->priv_data; |
|
AVFormatContext *oc; |
|
AVFormatContext *vtt_oc = NULL; |
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0); |
|
int remaining_options; |
|
int i, ret; |
|
|
|
ret = avformat_alloc_output_context2(&vs->avf, vs->oformat, NULL, NULL); |
|
if (ret < 0) |
|
return ret; |
|
oc = vs->avf; |
|
|
|
oc->url = av_strdup(""); |
|
if (!oc->url) |
|
return AVERROR(ENOMEM); |
|
|
|
oc->interrupt_callback = s->interrupt_callback; |
|
oc->max_delay = s->max_delay; |
|
oc->opaque = s->opaque; |
|
oc->io_open = s->io_open; |
|
#if FF_API_AVFORMAT_IO_CLOSE |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
oc->io_close = s->io_close; |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif |
|
oc->io_close2 = s->io_close2; |
|
oc->strict_std_compliance = s->strict_std_compliance; |
|
av_dict_copy(&oc->metadata, s->metadata, 0); |
|
|
|
if (vs->vtt_oformat) { |
|
ret = avformat_alloc_output_context2(&vs->vtt_avf, vs->vtt_oformat, NULL, NULL); |
|
if (ret < 0) |
|
return ret; |
|
vtt_oc = vs->vtt_avf; |
|
av_dict_copy(&vtt_oc->metadata, s->metadata, 0); |
|
} |
|
|
|
for (i = 0; i < vs->nb_streams; i++) { |
|
AVStream *st; |
|
AVFormatContext *loc; |
|
if (vs->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) |
|
loc = vtt_oc; |
|
else |
|
loc = oc; |
|
|
|
if (!(st = avformat_new_stream(loc, NULL))) |
|
return AVERROR(ENOMEM); |
|
avcodec_parameters_copy(st->codecpar, vs->streams[i]->codecpar); |
|
if (!oc->oformat->codec_tag || |
|
av_codec_get_id (oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_tag) == st->codecpar->codec_id || |
|
av_codec_get_tag(oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_id) <= 0) { |
|
st->codecpar->codec_tag = vs->streams[i]->codecpar->codec_tag; |
|
} else { |
|
st->codecpar->codec_tag = 0; |
|
} |
|
|
|
st->sample_aspect_ratio = vs->streams[i]->sample_aspect_ratio; |
|
st->time_base = vs->streams[i]->time_base; |
|
av_dict_copy(&st->metadata, vs->streams[i]->metadata, 0); |
|
st->id = vs->streams[i]->id; |
|
} |
|
|
|
vs->start_pos = 0; |
|
vs->new_start = 1; |
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4 && hls->max_seg_size > 0) { |
|
if (hls->http_persistent > 0) { |
|
//TODO: Support fragment fmp4 for http persistent in HLS muxer. |
|
av_log(s, AV_LOG_WARNING, "http persistent mode is currently unsupported for fragment mp4 in the HLS muxer.\n"); |
|
} |
|
if (hls->max_seg_size > 0) { |
|
av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n"); |
|
return AVERROR_PATCHWELCOME; |
|
} |
|
} |
|
|
|
if ((ret = avio_open_dyn_buf(&oc->pb)) < 0) |
|
return ret; |
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) { |
|
set_http_options(s, &options, hls); |
|
if (byterange_mode) { |
|
ret = hlsenc_io_open(s, &vs->out, vs->basename, &options); |
|
} else { |
|
ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options); |
|
} |
|
av_dict_free(&options); |
|
} |
|
if (ret < 0) { |
|
av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", vs->fmp4_init_filename); |
|
return ret; |
|
} |
|
|
|
av_dict_copy(&options, hls->format_options, 0); |
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) { |
|
av_dict_set(&options, "fflags", "-autobsf", 0); |
|
av_dict_set(&options, "movflags", "+frag_custom+dash+delay_moov", AV_DICT_APPEND); |
|
} else { |
|
/* We only require one PAT/PMT per segment. */ |
|
char period[21]; |
|
snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1); |
|
av_dict_set(&options, "sdt_period", period, AV_DICT_DONT_OVERWRITE); |
|
av_dict_set(&options, "pat_period", period, AV_DICT_DONT_OVERWRITE); |
|
} |
|
ret = avformat_init_output(oc, &options); |
|
remaining_options = av_dict_count(options); |
|
av_dict_free(&options); |
|
if (ret < 0) |
|
return ret; |
|
if (remaining_options) { |
|
av_log(s, AV_LOG_ERROR, "Some of the provided format options are not recognized\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
avio_flush(oc->pb); |
|
return 0; |
|
} |
|
|
|
static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename) |
|
{ |
|
while (segment) { |
|
if (!av_strcasecmp(segment->filename,filename)) |
|
return segment; |
|
segment = segment->next; |
|
} |
|
return (HLSSegment *) NULL; |
|
} |
|
|
|
static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls, |
|
VariantStream *vs, HLSSegment *en, |
|
double duration, int64_t pos, int64_t size) |
|
{ |
|
if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) && |
|
strlen(vs->current_segment_final_filename_fmt)) { |
|
char * new_url = av_strdup(vs->current_segment_final_filename_fmt); |
|
if (!new_url) { |
|
return AVERROR(ENOMEM); |
|
} |
|
ff_format_set_url(vs->avf, new_url); |
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) { |
|
char *filename = NULL; |
|
if (replace_int_data_in_filename(&filename, vs->avf->url, 's', pos + size) < 1) { |
|
av_log(hls, AV_LOG_ERROR, |
|
"Invalid second level segment filename template '%s', " |
|
"you can try to remove second_level_segment_size flag\n", |
|
vs->avf->url); |
|
av_freep(&filename); |
|
return AVERROR(EINVAL); |
|
} |
|
ff_format_set_url(vs->avf, filename); |
|
} |
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) { |
|
char *filename = NULL; |
|
if (replace_int_data_in_filename(&filename, vs->avf->url, |
|
't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) { |
|
av_log(hls, AV_LOG_ERROR, |
|
"Invalid second level segment filename template '%s', " |
|
"you can try to remove second_level_segment_duration flag\n", |
|
vs->avf->url); |
|
av_freep(&filename); |
|
return AVERROR(EINVAL); |
|
} |
|
ff_format_set_url(vs->avf, filename); |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
static int sls_flag_check_duration_size_index(HLSContext *hls) |
|
{ |
|
int ret = 0; |
|
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) { |
|
av_log(hls, AV_LOG_ERROR, |
|
"second_level_segment_duration hls_flag requires strftime to be true\n"); |
|
ret = AVERROR(EINVAL); |
|
} |
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) { |
|
av_log(hls, AV_LOG_ERROR, |
|
"second_level_segment_size hls_flag requires strfime to be true\n"); |
|
ret = AVERROR(EINVAL); |
|
} |
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) { |
|
av_log(hls, AV_LOG_ERROR, |
|
"second_level_segment_index hls_flag requires strftime to be true\n"); |
|
ret = AVERROR(EINVAL); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static int sls_flag_check_duration_size(HLSContext *hls, VariantStream *vs) |
|
{ |
|
const char *proto = avio_find_protocol_name(vs->basename); |
|
int segment_renaming_ok = proto && !strcmp(proto, "file"); |
|
int ret = 0; |
|
|
|
if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) { |
|
av_log(hls, AV_LOG_ERROR, |
|
"second_level_segment_duration hls_flag works only with file protocol segment names\n"); |
|
ret = AVERROR(EINVAL); |
|
} |
|
if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) { |
|
av_log(hls, AV_LOG_ERROR, |
|
"second_level_segment_size hls_flag works only with file protocol segment names\n"); |
|
ret = AVERROR(EINVAL); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) { |
|
if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) && |
|
strlen(vs->current_segment_final_filename_fmt)) { |
|
ff_rename(old_filename, vs->avf->url, hls); |
|
} |
|
} |
|
|
|
static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c, VariantStream *vs) |
|
{ |
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) { |
|
char *filename = NULL; |
|
if (replace_int_data_in_filename(&filename, |
|
oc->url, 'd', vs->sequence) < 1) { |
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', " |
|
"you can try to remove second_level_segment_index flag\n", |
|
oc->url); |
|
av_freep(&filename); |
|
return AVERROR(EINVAL); |
|
} |
|
ff_format_set_url(oc, filename); |
|
} |
|
if (c->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) { |
|
av_strlcpy(vs->current_segment_final_filename_fmt, oc->url, |
|
sizeof(vs->current_segment_final_filename_fmt)); |
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) { |
|
char *filename = NULL; |
|
if (replace_int_data_in_filename(&filename, oc->url, 's', 0) < 1) { |
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', " |
|
"you can try to remove second_level_segment_size flag\n", |
|
oc->url); |
|
av_freep(&filename); |
|
return AVERROR(EINVAL); |
|
} |
|
ff_format_set_url(oc, filename); |
|
} |
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) { |
|
char *filename = NULL; |
|
if (replace_int_data_in_filename(&filename, oc->url, 't', 0) < 1) { |
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', " |
|
"you can try to remove second_level_segment_duration flag\n", |
|
oc->url); |
|
av_freep(&filename); |
|
return AVERROR(EINVAL); |
|
} |
|
ff_format_set_url(oc, filename); |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
/* Create a new segment and append it to the segment list */ |
|
static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, |
|
VariantStream *vs, double duration, int64_t pos, |
|
int64_t size) |
|
{ |
|
HLSSegment *en = av_malloc(sizeof(*en)); |
|
const char *filename; |
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0); |
|
int ret; |
|
|
|
if (!en) |
|
return AVERROR(ENOMEM); |
|
|
|
en->var_stream_idx = vs->var_stream_idx; |
|
ret = sls_flags_filename_process(s, hls, vs, en, duration, pos, size); |
|
if (ret < 0) { |
|
av_freep(&en); |
|
return ret; |
|
} |
|
|
|
filename = av_basename(vs->avf->url); |
|
|
|
if (hls->use_localtime_mkdir) { |
|
filename = vs->avf->url; |
|
} |
|
if ((find_segment_by_filename(vs->segments, filename) || find_segment_by_filename(vs->old_segments, filename)) |
|
&& !byterange_mode) { |
|
av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename); |
|
} |
|
av_strlcpy(en->filename, filename, sizeof(en->filename)); |
|
|
|
if (vs->has_subtitle) |
|
av_strlcpy(en->sub_filename, av_basename(vs->vtt_avf->url), sizeof(en->sub_filename)); |
|
else |
|
en->sub_filename[0] = '\0'; |
|
|
|
en->duration = duration; |
|
en->pos = pos; |
|
en->size = size; |
|
en->keyframe_pos = vs->video_keyframe_pos; |
|
en->keyframe_size = vs->video_keyframe_size; |
|
en->next = NULL; |
|
en->discont = 0; |
|
en->discont_program_date_time = 0; |
|
|
|
if (vs->discontinuity) { |
|
en->discont = 1; |
|
vs->discontinuity = 0; |
|
} |
|
|
|
if (hls->key_info_file || hls->encrypt) { |
|
av_strlcpy(en->key_uri, vs->key_uri, sizeof(en->key_uri)); |
|
av_strlcpy(en->iv_string, vs->iv_string, sizeof(en->iv_string)); |
|
} |
|
|
|
if (!vs->segments) |
|
vs->segments = en; |
|
else |
|
vs->last_segment->next = en; |
|
|
|
vs->last_segment = en; |
|
|
|
// EVENT or VOD playlists imply sliding window cannot be used |
|
if (hls->pl_type != PLAYLIST_TYPE_NONE) |
|
hls->max_nb_segments = 0; |
|
|
|
if (hls->max_nb_segments && vs->nb_entries >= hls->max_nb_segments) { |
|
en = vs->segments; |
|
if (!en->next->discont_program_date_time && !en->discont_program_date_time) |
|
vs->initial_prog_date_time += en->duration; |
|
vs->segments = en->next; |
|
if (en && hls->flags & HLS_DELETE_SEGMENTS && |
|
!(hls->flags & HLS_SINGLE_FILE)) { |
|
en->next = vs->old_segments; |
|
vs->old_segments = en; |
|
if ((ret = hls_delete_old_segments(s, hls, vs)) < 0) |
|
return ret; |
|
} else |
|
av_freep(&en); |
|
} else |
|
vs->nb_entries++; |
|
|
|
if (hls->max_seg_size > 0) { |
|
return 0; |
|
} |
|
vs->sequence++; |
|
|
|
return 0; |
|
} |
|
|
|
static int parse_playlist(AVFormatContext *s, const char *url, VariantStream *vs) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
AVIOContext *in; |
|
int ret = 0, is_segment = 0; |
|
int64_t new_start_pos; |
|
char line[MAX_URL_SIZE]; |
|
const char *ptr; |
|
const char *end; |
|
double discont_program_date_time = 0; |
|
|
|
if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ, |
|
&s->interrupt_callback, NULL, |
|
s->protocol_whitelist, s->protocol_blacklist)) < 0) |
|
return ret; |
|
|
|
ff_get_chomp_line(in, line, sizeof(line)); |
|
if (strcmp(line, "#EXTM3U")) { |
|
ret = AVERROR_INVALIDDATA; |
|
goto fail; |
|
} |
|
|
|
vs->discontinuity = 0; |
|
while (!avio_feof(in)) { |
|
ff_get_chomp_line(in, line, sizeof(line)); |
|
if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) { |
|
int64_t tmp_sequence = strtoll(ptr, NULL, 10); |
|
if (tmp_sequence < vs->sequence) |
|
av_log(hls, AV_LOG_VERBOSE, |
|
"Found playlist sequence number was smaller """ |
|
"than specified start sequence number: %"PRId64" < %"PRId64", " |
|
"omitting\n", tmp_sequence, hls->start_sequence); |
|
else { |
|
av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence); |
|
vs->sequence = tmp_sequence; |
|
} |
|
} else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) { |
|
is_segment = 1; |
|
vs->discontinuity = 1; |
|
} else if (av_strstart(line, "#EXTINF:", &ptr)) { |
|
is_segment = 1; |
|
vs->duration = atof(ptr); |
|
} else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) { |
|
ptr = av_stristr(line, "URI=\""); |
|
if (ptr) { |
|
ptr += strlen("URI=\""); |
|
end = av_stristr(ptr, ","); |
|
if (end) { |
|
av_strlcpy(vs->key_uri, ptr, end - ptr); |
|
} else { |
|
av_strlcpy(vs->key_uri, ptr, sizeof(vs->key_uri)); |
|
} |
|
} |
|
|
|
ptr = av_stristr(line, "IV=0x"); |
|
if (ptr) { |
|
ptr += strlen("IV=0x"); |
|
end = av_stristr(ptr, ","); |
|
if (end) { |
|
av_strlcpy(vs->iv_string, ptr, end - ptr); |
|
} else { |
|
av_strlcpy(vs->iv_string, ptr, sizeof(vs->iv_string)); |
|
} |
|
} |
|
} else if (av_strstart(line, "#EXT-X-PROGRAM-DATE-TIME:", &ptr)) { |
|
struct tm program_date_time; |
|
int y,M,d,h,m,s; |
|
double ms; |
|
if (sscanf(ptr, "%d-%d-%dT%d:%d:%d.%lf", &y, &M, &d, &h, &m, &s, &ms) != 7) { |
|
ret = AVERROR_INVALIDDATA; |
|
goto fail; |
|
} |
|
|
|
program_date_time.tm_year = y - 1900; |
|
program_date_time.tm_mon = M - 1; |
|
program_date_time.tm_mday = d; |
|
program_date_time.tm_hour = h; |
|
program_date_time.tm_min = m; |
|
program_date_time.tm_sec = s; |
|
program_date_time.tm_isdst = -1; |
|
|
|
discont_program_date_time = mktime(&program_date_time); |
|
discont_program_date_time += (double)(ms / 1000); |
|
} else if (av_strstart(line, "#", NULL)) { |
|
continue; |
|
} else if (line[0]) { |
|
if (is_segment) { |
|
char *new_file = av_strdup(line); |
|
if (!new_file) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
ff_format_set_url(vs->avf, new_file); |
|
is_segment = 0; |
|
new_start_pos = avio_tell(vs->avf->pb); |
|
vs->size = new_start_pos - vs->start_pos; |
|
ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size); |
|
if (discont_program_date_time) { |
|
vs->last_segment->discont_program_date_time = discont_program_date_time; |
|
discont_program_date_time += vs->duration; |
|
} |
|
if (ret < 0) |
|
goto fail; |
|
vs->start_pos = new_start_pos; |
|
} |
|
} |
|
} |
|
|
|
fail: |
|
avio_close(in); |
|
return ret; |
|
} |
|
|
|
static void hls_free_segments(HLSSegment *p) |
|
{ |
|
HLSSegment *en; |
|
|
|
while (p) { |
|
en = p; |
|
p = p->next; |
|
av_freep(&en); |
|
} |
|
} |
|
|
|
static int hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc) |
|
{ |
|
size_t len = strlen(oc->url); |
|
char *final_filename = av_strdup(oc->url); |
|
int ret; |
|
|
|
if (!final_filename) |
|
return AVERROR(ENOMEM); |
|
final_filename[len-4] = '\0'; |
|
ret = ff_rename(oc->url, final_filename, s); |
|
oc->url[len-4] = '\0'; |
|
av_freep(&final_filename); |
|
return ret; |
|
} |
|
|
|
static const char* get_relative_url(const char *master_url, const char *media_url) |
|
{ |
|
const char *p = strrchr(master_url, '/'); |
|
size_t base_len = 0; |
|
|
|
if (!p) p = strrchr(master_url, '\\'); |
|
|
|
if (p) { |
|
base_len = p - master_url; |
|
if (av_strncasecmp(master_url, media_url, base_len)) { |
|
av_log(NULL, AV_LOG_WARNING, "Unable to find relative url\n"); |
|
return NULL; |
|
} |
|
} else { |
|
return media_url; |
|
} |
|
|
|
return media_url + base_len + 1; |
|
} |
|
|
|
static int64_t get_stream_bit_rate(AVStream *stream) |
|
{ |
|
const AVPacketSideData *sd = av_packet_side_data_get( |
|
stream->codecpar->coded_side_data, stream->codecpar->nb_coded_side_data, |
|
AV_PKT_DATA_CPB_PROPERTIES |
|
); |
|
|
|
if (stream->codecpar->bit_rate) |
|
return stream->codecpar->bit_rate; |
|
else if (sd) { |
|
AVCPBProperties *props = (AVCPBProperties*)sd->data; |
|
return props->max_bitrate; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int create_master_playlist(AVFormatContext *s, |
|
VariantStream * const input_vs) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
VariantStream *vs, *temp_vs; |
|
AVStream *vid_st, *aud_st; |
|
AVDictionary *options = NULL; |
|
unsigned int i, j; |
|
int ret, bandwidth; |
|
const char *m3u8_rel_name = NULL; |
|
const char *vtt_m3u8_rel_name = NULL; |
|
const char *ccgroup; |
|
const char *sgroup = NULL; |
|
ClosedCaptionsStream *ccs; |
|
const char *proto = avio_find_protocol_name(hls->master_m3u8_url); |
|
int is_file_proto = proto && !strcmp(proto, "file"); |
|
int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || hls->master_publish_rate); |
|
char temp_filename[MAX_URL_SIZE]; |
|
int nb_channels; |
|
|
|
input_vs->m3u8_created = 1; |
|
if (!hls->master_m3u8_created) { |
|
/* For the first time, wait until all the media playlists are created */ |
|
for (i = 0; i < hls->nb_varstreams; i++) |
|
if (!hls->var_streams[i].m3u8_created) |
|
return 0; |
|
} else { |
|
/* Keep publishing the master playlist at the configured rate */ |
|
if (&hls->var_streams[0] != input_vs || !hls->master_publish_rate || |
|
input_vs->number % hls->master_publish_rate) |
|
return 0; |
|
} |
|
|
|
set_http_options(s, &options, hls); |
|
snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", hls->master_m3u8_url); |
|
ret = hlsenc_io_open(s, &hls->m3u8_out, temp_filename, &options); |
|
av_dict_free(&options); |
|
if (ret < 0) { |
|
av_log(s, AV_LOG_ERROR, "Failed to open master play list file '%s'\n", |
|
temp_filename); |
|
goto fail; |
|
} |
|
|
|
ff_hls_write_playlist_version(hls->m3u8_out, hls->version); |
|
|
|
for (i = 0; i < hls->nb_ccstreams; i++) { |
|
ccs = &(hls->cc_streams[i]); |
|
avio_printf(hls->m3u8_out, "#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS"); |
|
avio_printf(hls->m3u8_out, ",GROUP-ID=\"%s\"", ccs->ccgroup); |
|
avio_printf(hls->m3u8_out, ",NAME=\"%s\"", ccs->instreamid); |
|
if (ccs->language) |
|
avio_printf(hls->m3u8_out, ",LANGUAGE=\"%s\"", ccs->language); |
|
avio_printf(hls->m3u8_out, ",INSTREAM-ID=\"%s\"\n", ccs->instreamid); |
|
} |
|
|
|
/* For audio only variant streams add #EXT-X-MEDIA tag with attributes*/ |
|
for (i = 0; i < hls->nb_varstreams; i++) { |
|
vs = &(hls->var_streams[i]); |
|
|
|
if (vs->has_video || vs->has_subtitle || !vs->agroup) |
|
continue; |
|
|
|
m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name); |
|
if (!m3u8_rel_name) { |
|
av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n"); |
|
goto fail; |
|
} |
|
nb_channels = 0; |
|
for (j = 0; j < vs->nb_streams; j++) |
|
if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) |
|
if (vs->streams[j]->codecpar->ch_layout.nb_channels > nb_channels) |
|
nb_channels = vs->streams[j]->codecpar->ch_layout.nb_channels; |
|
|
|
ff_hls_write_audio_rendition(hls->m3u8_out, vs->agroup, m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1, nb_channels); |
|
} |
|
|
|
/* For variant streams with video add #EXT-X-STREAM-INF tag with attributes*/ |
|
for (i = 0; i < hls->nb_varstreams; i++) { |
|
vs = &(hls->var_streams[i]); |
|
|
|
m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name); |
|
if (!m3u8_rel_name) { |
|
av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n"); |
|
goto fail; |
|
} |
|
|
|
vid_st = NULL; |
|
aud_st = NULL; |
|
for (j = 0; j < vs->nb_streams; j++) { |
|
if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) |
|
vid_st = vs->streams[j]; |
|
else if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) |
|
aud_st = vs->streams[j]; |
|
} |
|
|
|
if (!vid_st && !aud_st) { |
|
av_log(s, AV_LOG_WARNING, "Media stream not found\n"); |
|
continue; |
|
} |
|
|
|
/** |
|
* Traverse through the list of audio only rendition streams and find |
|
* the rendition which has highest bitrate in the same audio group |
|
*/ |
|
if (vs->agroup) { |
|
for (j = 0; j < hls->nb_varstreams; j++) { |
|
temp_vs = &(hls->var_streams[j]); |
|
if (!temp_vs->has_video && !temp_vs->has_subtitle && |
|
temp_vs->agroup && |
|
!av_strcasecmp(temp_vs->agroup, vs->agroup)) { |
|
if (!aud_st) |
|
aud_st = temp_vs->streams[0]; |
|
if (temp_vs->streams[0]->codecpar->bit_rate > |
|
aud_st->codecpar->bit_rate) |
|
aud_st = temp_vs->streams[0]; |
|
} |
|
} |
|
} |
|
|
|
bandwidth = 0; |
|
if (vid_st) |
|
bandwidth += get_stream_bit_rate(vid_st); |
|
if (aud_st) |
|
bandwidth += get_stream_bit_rate(aud_st); |
|
bandwidth += bandwidth / 10; |
|
|
|
ccgroup = NULL; |
|
if (vid_st && vs->ccgroup) { |
|
/* check if this group name is available in the cc map string */ |
|
for (j = 0; j < hls->nb_ccstreams; j++) { |
|
ccs = &(hls->cc_streams[j]); |
|
if (!av_strcasecmp(ccs->ccgroup, vs->ccgroup)) { |
|
ccgroup = vs->ccgroup; |
|
break; |
|
} |
|
} |
|
if (j == hls->nb_ccstreams) |
|
av_log(s, AV_LOG_WARNING, "mapping ccgroup %s not found\n", |
|
vs->ccgroup); |
|
} |
|
|
|
if (vid_st && vs->sgroup) { |
|
sgroup = vs->sgroup; |
|
vtt_m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->vtt_m3u8_name); |
|
if (!vtt_m3u8_rel_name) { |
|
av_log(s, AV_LOG_WARNING, "Unable to find relative subtitle URL\n"); |
|
break; |
|
} |
|
|
|
ff_hls_write_subtitle_rendition(hls->m3u8_out, sgroup, vtt_m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1); |
|
} |
|
|
|
if (!hls->has_default_key || !hls->has_video_m3u8) { |
|
ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name, |
|
aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup); |
|
} else { |
|
if (vid_st) { |
|
ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name, |
|
aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup); |
|
} |
|
} |
|
} |
|
fail: |
|
if (ret >=0) |
|
hls->master_m3u8_created = 1; |
|
hlsenc_io_close(s, &hls->m3u8_out, temp_filename); |
|
if (use_temp_file) |
|
ff_rename(temp_filename, hls->master_m3u8_url, s); |
|
|
|
return ret; |
|
} |
|
|
|
static int hls_window(AVFormatContext *s, int last, VariantStream *vs) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
HLSSegment *en; |
|
int target_duration = 0; |
|
int ret = 0; |
|
char temp_filename[MAX_URL_SIZE]; |
|
char temp_vtt_filename[MAX_URL_SIZE]; |
|
int64_t sequence = FFMAX(hls->start_sequence, vs->sequence - vs->nb_entries); |
|
const char *proto = avio_find_protocol_name(vs->m3u8_name); |
|
int is_file_proto = proto && !strcmp(proto, "file"); |
|
int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || !(hls->pl_type == PLAYLIST_TYPE_VOD)); |
|
static unsigned warned_non_file; |
|
char *key_uri = NULL; |
|
char *iv_string = NULL; |
|
AVDictionary *options = NULL; |
|
double prog_date_time = vs->initial_prog_date_time; |
|
double *prog_date_time_p = (hls->flags & HLS_PROGRAM_DATE_TIME) ? &prog_date_time : NULL; |
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0); |
|
|
|
hls->version = 2; |
|
if (!(hls->flags & HLS_ROUND_DURATIONS)) { |
|
hls->version = 3; |
|
} |
|
|
|
if (byterange_mode) { |
|
hls->version = 4; |
|
sequence = 0; |
|
} |
|
|
|
if (hls->flags & HLS_I_FRAMES_ONLY) { |
|
hls->version = 4; |
|
} |
|
|
|
if (hls->flags & HLS_INDEPENDENT_SEGMENTS) { |
|
hls->version = 6; |
|
} |
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) { |
|
hls->version = 7; |
|
} |
|
|
|
if (!is_file_proto && (hls->flags & HLS_TEMP_FILE) && !warned_non_file++) |
|
av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n"); |
|
|
|
set_http_options(s, &options, hls); |
|
snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", vs->m3u8_name); |
|
ret = hlsenc_io_open(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename, &options); |
|
av_dict_free(&options); |
|
if (ret < 0) { |
|
if (hls->ignore_io_errors) |
|
ret = 0; |
|
goto fail; |
|
} |
|
|
|
for (en = vs->segments; en; en = en->next) { |
|
if (target_duration <= en->duration) |
|
target_duration = lrint(en->duration); |
|
} |
|
|
|
vs->discontinuity_set = 0; |
|
ff_hls_write_playlist_header(byterange_mode ? hls->m3u8_out : vs->out, hls->version, hls->allowcache, |
|
target_duration, sequence, hls->pl_type, hls->flags & HLS_I_FRAMES_ONLY); |
|
|
|
if ((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && vs->discontinuity_set==0) { |
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-DISCONTINUITY\n"); |
|
vs->discontinuity_set = 1; |
|
} |
|
if (vs->has_video && (hls->flags & HLS_INDEPENDENT_SEGMENTS)) { |
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-INDEPENDENT-SEGMENTS\n"); |
|
} |
|
for (en = vs->segments; en; en = en->next) { |
|
if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) || |
|
av_strcasecmp(en->iv_string, iv_string))) { |
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri); |
|
if (*en->iv_string) |
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, ",IV=0x%s", en->iv_string); |
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "\n"); |
|
key_uri = en->key_uri; |
|
iv_string = en->iv_string; |
|
} |
|
|
|
if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == vs->segments)) { |
|
ff_hls_write_init_file(byterange_mode ? hls->m3u8_out : vs->out, (hls->flags & HLS_SINGLE_FILE) ? en->filename : vs->fmp4_init_filename, |
|
hls->flags & HLS_SINGLE_FILE, vs->init_range_length, 0); |
|
} |
|
|
|
ret = ff_hls_write_file_entry(byterange_mode ? hls->m3u8_out : vs->out, en->discont, byterange_mode, |
|
en->duration, hls->flags & HLS_ROUND_DURATIONS, |
|
en->size, en->pos, hls->baseurl, |
|
en->filename, |
|
en->discont_program_date_time ? &en->discont_program_date_time : prog_date_time_p, |
|
en->keyframe_size, en->keyframe_pos, hls->flags & HLS_I_FRAMES_ONLY); |
|
if (en->discont_program_date_time) |
|
en->discont_program_date_time -= en->duration; |
|
if (ret < 0) { |
|
av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n"); |
|
} |
|
} |
|
|
|
if (last && (hls->flags & HLS_OMIT_ENDLIST)==0) |
|
ff_hls_write_end_list(byterange_mode ? hls->m3u8_out : vs->out); |
|
|
|
if (vs->vtt_m3u8_name) { |
|
set_http_options(vs->vtt_avf, &options, hls); |
|
snprintf(temp_vtt_filename, sizeof(temp_vtt_filename), use_temp_file ? "%s.tmp" : "%s", vs->vtt_m3u8_name); |
|
ret = hlsenc_io_open(s, &hls->sub_m3u8_out, temp_vtt_filename, &options); |
|
av_dict_free(&options); |
|
if (ret < 0) { |
|
if (hls->ignore_io_errors) |
|
ret = 0; |
|
goto fail; |
|
} |
|
ff_hls_write_playlist_header(hls->sub_m3u8_out, hls->version, hls->allowcache, |
|
target_duration, sequence, PLAYLIST_TYPE_NONE, 0); |
|
for (en = vs->segments; en; en = en->next) { |
|
ret = ff_hls_write_file_entry(hls->sub_m3u8_out, 0, byterange_mode, |
|
en->duration, 0, en->size, en->pos, |
|
hls->baseurl, en->sub_filename, NULL, 0, 0, 0); |
|
if (ret < 0) { |
|
av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n"); |
|
} |
|
} |
|
|
|
if (last) |
|
ff_hls_write_end_list(hls->sub_m3u8_out); |
|
|
|
} |
|
|
|
fail: |
|
av_dict_free(&options); |
|
ret = hlsenc_io_close(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename); |
|
if (ret < 0) { |
|
return ret; |
|
} |
|
hlsenc_io_close(s, &hls->sub_m3u8_out, vs->vtt_m3u8_name); |
|
if (use_temp_file) { |
|
ff_rename(temp_filename, vs->m3u8_name, s); |
|
if (vs->vtt_m3u8_name) |
|
ff_rename(temp_vtt_filename, vs->vtt_m3u8_name, s); |
|
} |
|
if (ret >= 0 && hls->master_pl_name) |
|
if (create_master_playlist(s, vs) < 0) |
|
av_log(s, AV_LOG_WARNING, "Master playlist creation failed\n"); |
|
|
|
return ret; |
|
} |
|
|
|
static int hls_start(AVFormatContext *s, VariantStream *vs) |
|
{ |
|
HLSContext *c = s->priv_data; |
|
AVFormatContext *oc = vs->avf; |
|
AVFormatContext *vtt_oc = vs->vtt_avf; |
|
AVDictionary *options = NULL; |
|
const char *proto = NULL; |
|
int use_temp_file = 0; |
|
char iv_string[KEYSIZE*2 + 1]; |
|
int err = 0; |
|
|
|
if (c->flags & HLS_SINGLE_FILE) { |
|
char *new_name = av_strdup(vs->basename); |
|
if (!new_name) |
|
return AVERROR(ENOMEM); |
|
ff_format_set_url(oc, new_name); |
|
if (vs->vtt_basename) { |
|
new_name = av_strdup(vs->vtt_basename); |
|
if (!new_name) |
|
return AVERROR(ENOMEM); |
|
ff_format_set_url(vtt_oc, new_name); |
|
} |
|
} else if (c->max_seg_size > 0) { |
|
char *filename = NULL; |
|
if (replace_int_data_in_filename(&filename, |
|
vs->basename, 'd', vs->sequence) < 1) { |
|
av_freep(&filename); |
|
av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -strftime 1 with it\n", vs->basename); |
|
return AVERROR(EINVAL); |
|
} |
|
ff_format_set_url(oc, filename); |
|
} else { |
|
if (c->use_localtime) { |
|
int r; |
|
char *expanded = NULL; |
|
|
|
r = strftime_expand(vs->basename, &expanded); |
|
if (r < 0) { |
|
av_log(oc, AV_LOG_ERROR, "Could not get segment filename with strftime\n"); |
|
return r; |
|
} |
|
ff_format_set_url(oc, expanded); |
|
|
|
err = sls_flag_use_localtime_filename(oc, c, vs); |
|
if (err < 0) { |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
if (c->use_localtime_mkdir) { |
|
const char *dir; |
|
char *fn_copy = av_strdup(oc->url); |
|
if (!fn_copy) |
|
return AVERROR(ENOMEM); |
|
dir = av_dirname(fn_copy); |
|
if (ff_mkdir_p(dir) == -1 && errno != EEXIST) { |
|
av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir); |
|
av_freep(&fn_copy); |
|
return AVERROR(errno); |
|
} |
|
av_freep(&fn_copy); |
|
} |
|
} else { |
|
char *filename = NULL; |
|
if (replace_int_data_in_filename(&filename, |
|
vs->basename, 'd', vs->sequence) < 1) { |
|
av_freep(&filename); |
|
av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -strftime 1 with it\n", vs->basename); |
|
return AVERROR(EINVAL); |
|
} |
|
ff_format_set_url(oc, filename); |
|
} |
|
if (vs->vtt_basename) { |
|
char *filename = NULL; |
|
if (replace_int_data_in_filename(&filename, |
|
vs->vtt_basename, 'd', vs->sequence) < 1) { |
|
av_freep(&filename); |
|
av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", vs->vtt_basename); |
|
return AVERROR(EINVAL); |
|
} |
|
ff_format_set_url(vtt_oc, filename); |
|
} |
|
} |
|
|
|
proto = avio_find_protocol_name(oc->url); |
|
use_temp_file = proto && !strcmp(proto, "file") && (c->flags & HLS_TEMP_FILE); |
|
|
|
if (use_temp_file) { |
|
char *new_name = av_asprintf("%s.tmp", oc->url); |
|
if (!new_name) |
|
return AVERROR(ENOMEM); |
|
ff_format_set_url(oc, new_name); |
|
} |
|
|
|
if (c->key_info_file || c->encrypt) { |
|
if (c->segment_type == SEGMENT_TYPE_FMP4) { |
|
av_log(s, AV_LOG_ERROR, "Encrypted fmp4 not yet supported\n"); |
|
return AVERROR_PATCHWELCOME; |
|
} |
|
|
|
if (c->key_info_file && c->encrypt) { |
|
av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc," |
|
" ignoring -hls_enc\n"); |
|
} |
|
|
|
if (!vs->encrypt_started || (c->flags & HLS_PERIODIC_REKEY)) { |
|
if (c->key_info_file) { |
|
if ((err = hls_encryption_start(s, vs)) < 0) |
|
goto fail; |
|
} else { |
|
if (!c->encrypt_started) { |
|
if ((err = do_encrypt(s, vs)) < 0) |
|
goto fail; |
|
c->encrypt_started = 1; |
|
} |
|
av_strlcpy(vs->key_uri, c->key_uri, sizeof(vs->key_uri)); |
|
av_strlcpy(vs->key_string, c->key_string, sizeof(vs->key_string)); |
|
av_strlcpy(vs->iv_string, c->iv_string, sizeof(vs->iv_string)); |
|
} |
|
vs->encrypt_started = 1; |
|
} |
|
err = av_strlcpy(iv_string, vs->iv_string, sizeof(iv_string)); |
|
if (!err) { |
|
snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, vs->sequence); |
|
memset(vs->iv_string, 0, sizeof(vs->iv_string)); |
|
memcpy(vs->iv_string, iv_string, sizeof(iv_string)); |
|
} |
|
} |
|
if (c->segment_type != SEGMENT_TYPE_FMP4) { |
|
if (oc->oformat->priv_class && oc->priv_data) { |
|
av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0); |
|
} |
|
if (c->flags & HLS_SINGLE_FILE) { |
|
if (c->key_info_file || c->encrypt) { |
|
av_dict_set(&options, "encryption_key", vs->key_string, 0); |
|
av_dict_set(&options, "encryption_iv", vs->iv_string, 0); |
|
|
|
/* Write temp file with cryption content */ |
|
av_freep(&vs->basename_tmp); |
|
vs->basename_tmp = av_asprintf("crypto:%s.tmp", oc->url); |
|
|
|
/* append temp file content into single file */ |
|
av_freep(&vs->basename); |
|
vs->basename = av_asprintf("%s", oc->url); |
|
} else { |
|
vs->basename_tmp = vs->basename; |
|
} |
|
set_http_options(s, &options, c); |
|
if (!vs->out_single_file) |
|
if ((err = hlsenc_io_open(s, &vs->out_single_file, vs->basename, &options)) < 0) { |
|
if (c->ignore_io_errors) |
|
err = 0; |
|
goto fail; |
|
} |
|
|
|
if ((err = hlsenc_io_open(s, &vs->out, vs->basename_tmp, &options)) < 0) { |
|
if (c->ignore_io_errors) |
|
err = 0; |
|
goto fail; |
|
} |
|
|
|
} |
|
} |
|
if (vs->vtt_basename) { |
|
set_http_options(s, &options, c); |
|
if ((err = hlsenc_io_open(s, &vtt_oc->pb, vtt_oc->url, &options)) < 0) { |
|
if (c->ignore_io_errors) |
|
err = 0; |
|
goto fail; |
|
} |
|
} |
|
av_dict_free(&options); |
|
|
|
if (vs->vtt_basename) { |
|
err = avformat_write_header(vtt_oc,NULL); |
|
if (err < 0) |
|
return err; |
|
} |
|
|
|
return 0; |
|
fail: |
|
av_dict_free(&options); |
|
|
|
return err; |
|
} |
|
|
|
static const char * get_default_pattern_localtime_fmt(AVFormatContext *s) |
|
{ |
|
char b[21]; |
|
time_t t = time(NULL); |
|
struct tm *p, tmbuf; |
|
HLSContext *hls = s->priv_data; |
|
|
|
p = localtime_r(&t, &tmbuf); |
|
// no %s support when strftime returned error or left format string unchanged |
|
// also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error |
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) { |
|
return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s"; |
|
} |
|
return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts"; |
|
} |
|
|
|
static int append_postfix(char *name, int name_buf_len, int i) |
|
{ |
|
char *p; |
|
char extension[10] = {'\0'}; |
|
|
|
p = strrchr(name, '.'); |
|
if (p) { |
|
av_strlcpy(extension, p, sizeof(extension)); |
|
*p = '\0'; |
|
} |
|
|
|
snprintf(name + strlen(name), name_buf_len - strlen(name), POSTFIX_PATTERN, i); |
|
|
|
if (strlen(extension)) |
|
av_strlcat(name, extension, name_buf_len); |
|
|
|
return 0; |
|
} |
|
|
|
static int validate_name(int nb_vs, const char *fn) |
|
{ |
|
const char *filename, *subdir_name; |
|
char *fn_dup = NULL; |
|
int ret = 0; |
|
|
|
if (!fn) |
|
return AVERROR(EINVAL); |
|
|
|
fn_dup = av_strdup(fn); |
|
if (!fn_dup) |
|
return AVERROR(ENOMEM); |
|
filename = av_basename(fn); |
|
subdir_name = av_dirname(fn_dup); |
|
|
|
if (nb_vs > 1 && !av_stristr(filename, "%v") && !av_stristr(subdir_name, "%v")) { |
|
av_log(NULL, AV_LOG_ERROR, "More than 1 variant streams are present, %%v is expected " |
|
"either in the filename or in the sub-directory name of file %s\n", fn); |
|
ret = AVERROR(EINVAL); |
|
goto fail; |
|
} |
|
|
|
if (av_stristr(filename, "%v") && av_stristr(subdir_name, "%v")) { |
|
av_log(NULL, AV_LOG_ERROR, "%%v is expected either in the filename or " |
|
"in the sub-directory name of file %s, but only in one of them\n", fn); |
|
ret = AVERROR(EINVAL); |
|
goto fail; |
|
} |
|
|
|
fail: |
|
av_freep(&fn_dup); |
|
return ret; |
|
} |
|
|
|
static int format_name(const char *buf, char **s, int index, const char *varname) |
|
{ |
|
const char *proto, *dir; |
|
char *orig_buf_dup = NULL, *mod_buf_dup = NULL; |
|
int ret = 0; |
|
|
|
orig_buf_dup = av_strdup(buf); |
|
if (!orig_buf_dup) |
|
return AVERROR(ENOMEM); |
|
|
|
if (!av_stristr(buf, "%v")) { |
|
*s = orig_buf_dup; |
|
return 0; |
|
} |
|
|
|
if (!varname) { |
|
if (replace_int_data_in_filename(s, orig_buf_dup, 'v', index) < 1) { |
|
ret = AVERROR(EINVAL); |
|
goto fail; |
|
} |
|
} else { |
|
if (replace_str_data_in_filename(s, orig_buf_dup, 'v', varname) < 1) { |
|
ret = AVERROR(EINVAL); |
|
goto fail; |
|
} |
|
} |
|
|
|
proto = avio_find_protocol_name(orig_buf_dup); |
|
dir = av_dirname(orig_buf_dup); |
|
|
|
/* if %v is present in the file's directory, create sub-directory */ |
|
if (av_stristr(dir, "%v") && proto && !strcmp(proto, "file")) { |
|
mod_buf_dup = av_strdup(*s); |
|
dir = av_dirname(mod_buf_dup); |
|
if (ff_mkdir_p(dir) == -1 && errno != EEXIST) { |
|
ret = AVERROR(errno); |
|
goto fail; |
|
} |
|
} |
|
|
|
fail: |
|
av_freep(&orig_buf_dup); |
|
av_freep(&mod_buf_dup); |
|
return ret; |
|
} |
|
|
|
static int get_nth_codec_stream_index(AVFormatContext *s, |
|
enum AVMediaType codec_type, |
|
int64_t stream_id) |
|
{ |
|
unsigned int stream_index, cnt; |
|
if (stream_id < 0 || stream_id > s->nb_streams - 1) |
|
return -1; |
|
cnt = 0; |
|
for (stream_index = 0; stream_index < s->nb_streams; stream_index++) { |
|
if (s->streams[stream_index]->codecpar->codec_type != codec_type) |
|
continue; |
|
if (cnt == stream_id) |
|
return stream_index; |
|
cnt++; |
|
} |
|
return -1; |
|
} |
|
|
|
static int parse_variant_stream_mapstring(AVFormatContext *s) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
VariantStream *vs; |
|
int stream_index, i, j; |
|
enum AVMediaType codec_type; |
|
int nb_varstreams = 0, nb_streams; |
|
char *p, *q, *saveptr1, *saveptr2, *varstr, *keyval; |
|
const char *val; |
|
|
|
/** |
|
* Expected format for var_stream_map string is as below: |
|
* "a:0,v:0 a:1,v:1" |
|
* "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,default:0 v:0,agroup:a0 v:1,agroup:a1" |
|
* This string specifies how to group the audio, video and subtitle streams |
|
* into different variant streams. The variant stream groups are separated |
|
* by space. |
|
* |
|
* a:, v:, s: are keys to specify audio, video and subtitle streams |
|
* respectively. Allowed values are 0 to 9 digits (limited just based on |
|
* practical usage) |
|
* |
|
* agroup: is key to specify audio group. A string can be given as value. |
|
* sgroup: is key to specify subtitle group. A string can be given as value. |
|
*/ |
|
p = av_strdup(hls->var_stream_map); |
|
if (!p) |
|
return AVERROR(ENOMEM); |
|
|
|
q = p; |
|
while (av_strtok(q, " \t", &saveptr1)) { |
|
q = NULL; |
|
nb_varstreams++; |
|
} |
|
av_freep(&p); |
|
|
|
hls->var_streams = av_mallocz(sizeof(*hls->var_streams) * nb_varstreams); |
|
if (!hls->var_streams) |
|
return AVERROR(ENOMEM); |
|
hls->nb_varstreams = nb_varstreams; |
|
|
|
p = hls->var_stream_map; |
|
nb_varstreams = 0; |
|
while (varstr = av_strtok(p, " \t", &saveptr1)) { |
|
p = NULL; |
|
|
|
if (nb_varstreams < hls->nb_varstreams) { |
|
vs = &(hls->var_streams[nb_varstreams]); |
|
vs->var_stream_idx = nb_varstreams; |
|
vs->is_default = 0; |
|
nb_varstreams++; |
|
} else |
|
return AVERROR(EINVAL); |
|
|
|
q = varstr; |
|
while (1) { |
|
if (!av_strncasecmp(q, "a:", 2) || !av_strncasecmp(q, "v:", 2) || |
|
!av_strncasecmp(q, "s:", 2)) |
|
vs->nb_streams++; |
|
q = strchr(q, ','); |
|
if (!q) |
|
break; |
|
q++; |
|
} |
|
vs->streams = av_mallocz(sizeof(AVStream *) * vs->nb_streams); |
|
if (!vs->streams) |
|
return AVERROR(ENOMEM); |
|
|
|
nb_streams = 0; |
|
while (keyval = av_strtok(varstr, ",", &saveptr2)) { |
|
int64_t num; |
|
char *end; |
|
varstr = NULL; |
|
if (av_strstart(keyval, "language:", &val)) { |
|
vs->language = val; |
|
continue; |
|
} else if (av_strstart(keyval, "default:", &val)) { |
|
vs->is_default = (!av_strncasecmp(val, "YES", strlen("YES")) || |
|
(!av_strncasecmp(val, "1", strlen("1")))); |
|
hls->has_default_key = 1; |
|
continue; |
|
} else if (av_strstart(keyval, "name:", &val)) { |
|
vs->varname = val; |
|
continue; |
|
} else if (av_strstart(keyval, "agroup:", &val)) { |
|
vs->agroup = val; |
|
continue; |
|
} else if (av_strstart(keyval, "sgroup:", &val)) { |
|
vs->sgroup = val; |
|
continue; |
|
} else if (av_strstart(keyval, "ccgroup:", &val)) { |
|
vs->ccgroup = val; |
|
continue; |
|
} else if (av_strstart(keyval, "v:", &val)) { |
|
codec_type = AVMEDIA_TYPE_VIDEO; |
|
hls->has_video_m3u8 = 1; |
|
} else if (av_strstart(keyval, "a:", &val)) { |
|
codec_type = AVMEDIA_TYPE_AUDIO; |
|
} else if (av_strstart(keyval, "s:", &val)) { |
|
codec_type = AVMEDIA_TYPE_SUBTITLE; |
|
} else { |
|
av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
num = strtoll(val, &end, 10); |
|
if (!av_isdigit(*val) || *end != '\0') { |
|
av_log(s, AV_LOG_ERROR, "Invalid stream number: '%s'\n", val); |
|
return AVERROR(EINVAL); |
|
} |
|
stream_index = get_nth_codec_stream_index(s, codec_type, num); |
|
|
|
if (stream_index >= 0 && nb_streams < vs->nb_streams) { |
|
for (i = 0; nb_streams > 0 && i < nb_streams; i++) { |
|
if (vs->streams[i] == s->streams[stream_index]) { |
|
av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once inside " |
|
"variant definition #%d\n", nb_varstreams - 1); |
|
return AVERROR(EINVAL); |
|
} |
|
} |
|
for (j = 0; nb_varstreams > 1 && j < nb_varstreams - 1; j++) { |
|
for (i = 0; i < hls->var_streams[j].nb_streams; i++) { |
|
if (hls->var_streams[j].streams[i] == s->streams[stream_index]) { |
|
av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once " |
|
"in two different variant definitions #%d and #%d\n", |
|
j, nb_varstreams - 1); |
|
return AVERROR(EINVAL); |
|
} |
|
} |
|
} |
|
vs->streams[nb_streams++] = s->streams[stream_index]; |
|
} else { |
|
av_log(s, AV_LOG_ERROR, "Unable to map stream at %s\n", keyval); |
|
return AVERROR(EINVAL); |
|
} |
|
} |
|
} |
|
av_log(s, AV_LOG_DEBUG, "Number of variant streams %d\n", |
|
hls->nb_varstreams); |
|
|
|
return 0; |
|
} |
|
|
|
static int parse_cc_stream_mapstring(AVFormatContext *s) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
int nb_ccstreams = 0; |
|
char *p, *q, *ccstr, *keyval; |
|
char *saveptr1 = NULL, *saveptr2 = NULL; |
|
const char *val; |
|
ClosedCaptionsStream *ccs; |
|
|
|
p = av_strdup(hls->cc_stream_map); |
|
if(!p) |
|
return AVERROR(ENOMEM); |
|
|
|
q = p; |
|
while (av_strtok(q, " \t", &saveptr1)) { |
|
q = NULL; |
|
nb_ccstreams++; |
|
} |
|
av_freep(&p); |
|
|
|
hls->cc_streams = av_mallocz(sizeof(*hls->cc_streams) * nb_ccstreams); |
|
if (!hls->cc_streams) |
|
return AVERROR(ENOMEM); |
|
hls->nb_ccstreams = nb_ccstreams; |
|
|
|
p = hls->cc_stream_map; |
|
nb_ccstreams = 0; |
|
while (ccstr = av_strtok(p, " \t", &saveptr1)) { |
|
p = NULL; |
|
|
|
if (nb_ccstreams < hls->nb_ccstreams) |
|
ccs = &(hls->cc_streams[nb_ccstreams++]); |
|
else |
|
return AVERROR(EINVAL); |
|
|
|
while (keyval = av_strtok(ccstr, ",", &saveptr2)) { |
|
ccstr = NULL; |
|
|
|
if (av_strstart(keyval, "ccgroup:", &val)) { |
|
ccs->ccgroup = val; |
|
} else if (av_strstart(keyval, "instreamid:", &val)) { |
|
ccs->instreamid = val; |
|
} else if (av_strstart(keyval, "language:", &val)) { |
|
ccs->language = val; |
|
} else { |
|
av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval); |
|
return AVERROR(EINVAL); |
|
} |
|
} |
|
|
|
if (!ccs->ccgroup || !ccs->instreamid) { |
|
av_log(s, AV_LOG_ERROR, "Insufficient parameters in cc stream map string\n"); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
if (av_strstart(ccs->instreamid, "CC", &val)) { |
|
if (atoi(val) < 1 || atoi(val) > 4) { |
|
av_log(s, AV_LOG_ERROR, "Invalid instream ID CC index %d in %s, range 1-4\n", |
|
atoi(val), ccs->instreamid); |
|
return AVERROR(EINVAL); |
|
} |
|
} else if (av_strstart(ccs->instreamid, "SERVICE", &val)) { |
|
if (atoi(val) < 1 || atoi(val) > 63) { |
|
av_log(s, AV_LOG_ERROR, "Invalid instream ID SERVICE index %d in %s, range 1-63 \n", |
|
atoi(val), ccs->instreamid); |
|
return AVERROR(EINVAL); |
|
} |
|
} else { |
|
av_log(s, AV_LOG_ERROR, "Invalid instream ID %s, supported are CCn or SERVICEn\n", |
|
ccs->instreamid); |
|
return AVERROR(EINVAL); |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int update_variant_stream_info(AVFormatContext *s) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
unsigned int i; |
|
int ret = 0; |
|
|
|
if (hls->cc_stream_map) { |
|
ret = parse_cc_stream_mapstring(s); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
if (hls->var_stream_map) { |
|
return parse_variant_stream_mapstring(s); |
|
} else { |
|
//By default, a single variant stream with all the codec streams is created |
|
hls->var_streams = av_mallocz(sizeof(*hls->var_streams)); |
|
if (!hls->var_streams) |
|
return AVERROR(ENOMEM); |
|
hls->nb_varstreams = 1; |
|
|
|
hls->var_streams[0].var_stream_idx = 0; |
|
hls->var_streams[0].nb_streams = s->nb_streams; |
|
hls->var_streams[0].streams = av_mallocz(sizeof(AVStream *) * |
|
hls->var_streams[0].nb_streams); |
|
if (!hls->var_streams[0].streams) |
|
return AVERROR(ENOMEM); |
|
|
|
//by default, the first available ccgroup is mapped to the variant stream |
|
if (hls->nb_ccstreams) |
|
hls->var_streams[0].ccgroup = hls->cc_streams[0].ccgroup; |
|
|
|
for (i = 0; i < s->nb_streams; i++) |
|
hls->var_streams[0].streams[i] = s->streams[i]; |
|
} |
|
return 0; |
|
} |
|
|
|
static int update_master_pl_info(AVFormatContext *s) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
const char *dir; |
|
char *fn1= NULL, *fn2 = NULL; |
|
int ret = 0; |
|
|
|
fn1 = av_strdup(s->url); |
|
if (!fn1) |
|
return AVERROR(ENOMEM); |
|
dir = av_dirname(fn1); |
|
|
|
/** |
|
* if output file's directory has %v, variants are created in sub-directories |
|
* then master is created at the sub-directories level |
|
*/ |
|
if (dir && av_stristr(av_basename(dir), "%v")) { |
|
fn2 = av_strdup(dir); |
|
if (!fn2) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
dir = av_dirname(fn2); |
|
} |
|
|
|
if (dir && strcmp(dir, ".")) |
|
hls->master_m3u8_url = av_append_path_component(dir, hls->master_pl_name); |
|
else |
|
hls->master_m3u8_url = av_strdup(hls->master_pl_name); |
|
|
|
if (!hls->master_m3u8_url) { |
|
ret = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
|
|
fail: |
|
av_freep(&fn1); |
|
av_freep(&fn2); |
|
|
|
return ret; |
|
} |
|
|
|
static int hls_write_header(AVFormatContext *s) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
int ret, i, j; |
|
VariantStream *vs = NULL; |
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) { |
|
int subtitle_streams = 0; |
|
vs = &hls->var_streams[i]; |
|
|
|
ret = avformat_write_header(vs->avf, NULL); |
|
if (ret < 0) |
|
return ret; |
|
//av_assert0(s->nb_streams == hls->avf->nb_streams); |
|
for (j = 0; j < vs->nb_streams; j++) { |
|
AVStream *inner_st; |
|
AVStream *outer_st = vs->streams[j]; |
|
|
|
if (hls->max_seg_size > 0) { |
|
if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && |
|
(outer_st->codecpar->bit_rate > hls->max_seg_size)) { |
|
av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, " |
|
"(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.", |
|
outer_st->codecpar->bit_rate, hls->max_seg_size); |
|
} |
|
} |
|
|
|
if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE) |
|
inner_st = vs->avf->streams[j - subtitle_streams]; |
|
else if (vs->vtt_avf) { |
|
inner_st = vs->vtt_avf->streams[0]; |
|
subtitle_streams++; |
|
} else { |
|
/* We have a subtitle stream, when the user does not want one */ |
|
inner_st = NULL; |
|
continue; |
|
} |
|
avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den); |
|
if (outer_st->codecpar->codec_id == AV_CODEC_ID_HEVC && |
|
outer_st->codecpar->codec_tag != MKTAG('h','v','c','1')) { |
|
av_log(s, AV_LOG_WARNING, "Stream HEVC is not hvc1, you should use tag:v hvc1 to set it.\n"); |
|
} |
|
write_codec_attr(outer_st, vs); |
|
|
|
} |
|
/* Update the Codec Attr string for the mapped audio groups */ |
|
if (vs->has_video && vs->agroup) { |
|
for (j = 0; j < hls->nb_varstreams; j++) { |
|
VariantStream *vs_agroup = &(hls->var_streams[j]); |
|
if (!vs_agroup->has_video && !vs_agroup->has_subtitle && |
|
vs_agroup->agroup && |
|
!av_strcasecmp(vs_agroup->agroup, vs->agroup)) { |
|
write_codec_attr(vs_agroup->streams[0], vs); |
|
} |
|
} |
|
} |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static int hls_init_file_resend(AVFormatContext *s, VariantStream *vs) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
AVDictionary *options = NULL; |
|
int ret = 0; |
|
|
|
set_http_options(s, &options, hls); |
|
ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options); |
|
av_dict_free(&options); |
|
if (ret < 0) |
|
return ret; |
|
avio_write(vs->out, vs->init_buffer, vs->init_range_length); |
|
hlsenc_io_close(s, &vs->out, hls->fmp4_init_filename); |
|
|
|
return ret; |
|
} |
|
|
|
static int64_t append_single_file(AVFormatContext *s, VariantStream *vs) |
|
{ |
|
int ret = 0; |
|
int64_t read_byte = 0; |
|
int64_t total_size = 0; |
|
char *filename = NULL; |
|
char buf[BUFSIZE]; |
|
AVFormatContext *oc = vs->avf; |
|
|
|
hlsenc_io_close(s, &vs->out, vs->basename_tmp); |
|
filename = av_asprintf("%s.tmp", oc->url); |
|
ret = s->io_open(s, &vs->out, filename, AVIO_FLAG_READ, NULL); |
|
if (ret < 0) { |
|
av_free(filename); |
|
return ret; |
|
} |
|
|
|
do { |
|
read_byte = avio_read(vs->out, buf, BUFSIZE); |
|
if (read_byte > 0) { |
|
avio_write(vs->out_single_file, buf, read_byte); |
|
total_size += read_byte; |
|
ret = total_size; |
|
} |
|
} while (read_byte > 0); |
|
|
|
hlsenc_io_close(s, &vs->out, filename); |
|
av_free(filename); |
|
|
|
return ret; |
|
} |
|
static int hls_write_packet(AVFormatContext *s, AVPacket *pkt) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
AVFormatContext *oc = NULL; |
|
AVStream *st = s->streams[pkt->stream_index]; |
|
int64_t end_pts = 0; |
|
int is_ref_pkt = 1; |
|
int ret = 0, can_split = 1, i, j; |
|
int stream_index = 0; |
|
int subtitle_streams = 0; |
|
int range_length = 0; |
|
const char *proto = NULL; |
|
int use_temp_file = 0; |
|
VariantStream *vs = NULL; |
|
char *old_filename = NULL; |
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) { |
|
vs = &hls->var_streams[i]; |
|
for (j = 0; j < vs->nb_streams; j++) { |
|
if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) { |
|
subtitle_streams++; |
|
} |
|
if (vs->streams[j] == st) { |
|
if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) { |
|
oc = vs->vtt_avf; |
|
stream_index = 0; |
|
} else { |
|
oc = vs->avf; |
|
stream_index = j - subtitle_streams; |
|
} |
|
break; |
|
} |
|
} |
|
|
|
if (oc) |
|
break; |
|
} |
|
|
|
if (!oc) { |
|
av_log(s, AV_LOG_ERROR, "Unable to find mapping variant stream\n"); |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
end_pts = hls->recording_time * vs->number; |
|
|
|
if (vs->sequence - vs->nb_entries > hls->start_sequence && hls->init_time > 0) { |
|
/* reset end_pts, hls->recording_time at end of the init hls list */ |
|
int64_t init_list_dur = hls->init_time * vs->nb_entries; |
|
int64_t after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries) * hls->time; |
|
hls->recording_time = hls->time; |
|
end_pts = init_list_dur + after_init_list_dur ; |
|
} |
|
|
|
if (vs->start_pts == AV_NOPTS_VALUE) { |
|
vs->start_pts = pkt->pts; |
|
if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) |
|
vs->start_pts_from_audio = 1; |
|
} |
|
if (vs->start_pts_from_audio && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && vs->start_pts > pkt->pts) { |
|
vs->start_pts = pkt->pts; |
|
vs->start_pts_from_audio = 0; |
|
} |
|
|
|
if (vs->has_video) { |
|
can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && |
|
((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME)); |
|
is_ref_pkt = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->stream_index == vs->reference_stream_index); |
|
} |
|
if (pkt->pts == AV_NOPTS_VALUE) |
|
is_ref_pkt = can_split = 0; |
|
|
|
if (is_ref_pkt) { |
|
if (vs->end_pts == AV_NOPTS_VALUE) |
|
vs->end_pts = pkt->pts; |
|
if (vs->new_start) { |
|
vs->new_start = 0; |
|
vs->duration = (double)(pkt->pts - vs->end_pts) |
|
* st->time_base.num / st->time_base.den; |
|
vs->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den; |
|
} else { |
|
if (pkt->duration) { |
|
vs->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den; |
|
} else { |
|
av_log(s, AV_LOG_WARNING, "Stream %d packet with pts %" PRId64 " has duration 0. The segment duration may not be precise.\n", |
|
pkt->stream_index, pkt->pts); |
|
vs->duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den; |
|
} |
|
} |
|
} |
|
|
|
can_split = can_split && (pkt->pts - vs->end_pts > 0); |
|
if (vs->packets_written && can_split && av_compare_ts(pkt->pts - vs->start_pts, st->time_base, |
|
end_pts, AV_TIME_BASE_Q) >= 0) { |
|
int64_t new_start_pos; |
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0); |
|
|
|
av_write_frame(oc, NULL); /* Flush any buffered data */ |
|
new_start_pos = avio_tell(oc->pb); |
|
vs->size = new_start_pos - vs->start_pos; |
|
avio_flush(oc->pb); |
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) { |
|
if (!vs->init_range_length) { |
|
range_length = avio_close_dyn_buf(oc->pb, &vs->init_buffer); |
|
if (range_length <= 0) |
|
return AVERROR(EINVAL); |
|
avio_write(vs->out, vs->init_buffer, range_length); |
|
if (!hls->resend_init_file) |
|
av_freep(&vs->init_buffer); |
|
vs->init_range_length = range_length; |
|
avio_open_dyn_buf(&oc->pb); |
|
vs->packets_written = 0; |
|
vs->start_pos = range_length; |
|
if (!byterange_mode) { |
|
hlsenc_io_close(s, &vs->out, vs->base_output_dirname); |
|
} |
|
} |
|
} |
|
if (!byterange_mode) { |
|
if (vs->vtt_avf) { |
|
hlsenc_io_close(s, &vs->vtt_avf->pb, vs->vtt_avf->url); |
|
} |
|
} |
|
|
|
if (hls->flags & HLS_SINGLE_FILE) { |
|
ret = flush_dynbuf(vs, &range_length); |
|
av_freep(&vs->temp_buffer); |
|
if (ret < 0) { |
|
return ret; |
|
} |
|
vs->size = range_length; |
|
if (hls->key_info_file || hls->encrypt) |
|
vs->size = append_single_file(s, vs); |
|
} else { |
|
if (oc->url[0]) { |
|
proto = avio_find_protocol_name(oc->url); |
|
use_temp_file = proto && !strcmp(proto, "file") |
|
&& (hls->flags & HLS_TEMP_FILE); |
|
} |
|
|
|
if ((hls->max_seg_size > 0 && (vs->size + vs->start_pos >= hls->max_seg_size)) || !byterange_mode) { |
|
AVDictionary *options = NULL; |
|
char *filename = NULL; |
|
if (hls->key_info_file || hls->encrypt) { |
|
av_dict_set(&options, "encryption_key", vs->key_string, 0); |
|
av_dict_set(&options, "encryption_iv", vs->iv_string, 0); |
|
filename = av_asprintf("crypto:%s", oc->url); |
|
} else { |
|
filename = av_asprintf("%s", oc->url); |
|
} |
|
if (!filename) { |
|
av_dict_free(&options); |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
// look to rename the asset name |
|
if (use_temp_file) |
|
av_dict_set(&options, "mpegts_flags", "resend_headers", 0); |
|
|
|
set_http_options(s, &options, hls); |
|
|
|
ret = hlsenc_io_open(s, &vs->out, filename, &options); |
|
if (ret < 0) { |
|
av_log(s, hls->ignore_io_errors ? AV_LOG_WARNING : AV_LOG_ERROR, |
|
"Failed to open file '%s'\n", filename); |
|
av_freep(&filename); |
|
av_dict_free(&options); |
|
return hls->ignore_io_errors ? 0 : ret; |
|
} |
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) { |
|
write_styp(vs->out); |
|
} |
|
ret = flush_dynbuf(vs, &range_length); |
|
if (ret < 0) { |
|
av_freep(&filename); |
|
av_dict_free(&options); |
|
return ret; |
|
} |
|
ret = hlsenc_io_close(s, &vs->out, filename); |
|
if (ret < 0) { |
|
av_log(s, AV_LOG_WARNING, "upload segment failed," |
|
" will retry with a new http session.\n"); |
|
ff_format_io_close(s, &vs->out); |
|
ret = hlsenc_io_open(s, &vs->out, filename, &options); |
|
reflush_dynbuf(vs, &range_length); |
|
ret = hlsenc_io_close(s, &vs->out, filename); |
|
} |
|
av_dict_free(&options); |
|
av_freep(&vs->temp_buffer); |
|
av_freep(&filename); |
|
} |
|
|
|
if (use_temp_file) |
|
hls_rename_temp_file(s, oc); |
|
} |
|
|
|
old_filename = av_strdup(oc->url); |
|
if (!old_filename) { |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
if (vs->start_pos || hls->segment_type != SEGMENT_TYPE_FMP4) { |
|
double cur_duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den; |
|
ret = hls_append_segment(s, hls, vs, cur_duration, vs->start_pos, vs->size); |
|
vs->end_pts = pkt->pts; |
|
vs->duration = 0; |
|
if (ret < 0) { |
|
av_freep(&old_filename); |
|
return ret; |
|
} |
|
} |
|
|
|
// if we're building a VOD playlist, skip writing the manifest multiple times, and just wait until the end |
|
if (hls->pl_type != PLAYLIST_TYPE_VOD) { |
|
if ((ret = hls_window(s, 0, vs)) < 0) { |
|
av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n"); |
|
ff_format_io_close(s, &vs->out); |
|
if ((ret = hls_window(s, 0, vs)) < 0) { |
|
av_freep(&old_filename); |
|
return ret; |
|
} |
|
} |
|
} |
|
|
|
if (hls->resend_init_file && hls->segment_type == SEGMENT_TYPE_FMP4) { |
|
ret = hls_init_file_resend(s, vs); |
|
if (ret < 0) { |
|
av_freep(&old_filename); |
|
return ret; |
|
} |
|
} |
|
|
|
if (hls->flags & HLS_SINGLE_FILE) { |
|
vs->start_pos += vs->size; |
|
if (hls->key_info_file || hls->encrypt) |
|
ret = hls_start(s, vs); |
|
if (hls->segment_type == SEGMENT_TYPE_MPEGTS && oc->oformat->priv_class && oc->priv_data) { |
|
av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0); |
|
} |
|
} else if (hls->max_seg_size > 0) { |
|
if (vs->size + vs->start_pos >= hls->max_seg_size) { |
|
vs->sequence++; |
|
sls_flag_file_rename(hls, vs, old_filename); |
|
ret = hls_start(s, vs); |
|
vs->start_pos = 0; |
|
/* When split segment by byte, the duration is short than hls_time, |
|
* so it is not enough one segment duration as hls_time, */ |
|
} else { |
|
vs->start_pos = new_start_pos; |
|
} |
|
} else { |
|
vs->start_pos = new_start_pos; |
|
sls_flag_file_rename(hls, vs, old_filename); |
|
ret = hls_start(s, vs); |
|
} |
|
vs->number++; |
|
av_freep(&old_filename); |
|
|
|
if (ret < 0) { |
|
return ret; |
|
} |
|
} |
|
|
|
vs->packets_written++; |
|
if (oc->pb) { |
|
ret = ff_write_chained(oc, stream_index, pkt, s, 0); |
|
vs->video_keyframe_size += pkt->size; |
|
if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->flags & AV_PKT_FLAG_KEY)) { |
|
vs->video_keyframe_size = avio_tell(oc->pb); |
|
} else { |
|
vs->video_keyframe_pos = avio_tell(vs->out); |
|
} |
|
if (hls->ignore_io_errors) |
|
ret = 0; |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static void hls_deinit(AVFormatContext *s) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
int i = 0; |
|
VariantStream *vs = NULL; |
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) { |
|
vs = &hls->var_streams[i]; |
|
|
|
av_freep(&vs->basename); |
|
av_freep(&vs->base_output_dirname); |
|
av_freep(&vs->fmp4_init_filename); |
|
av_freep(&vs->vtt_basename); |
|
av_freep(&vs->vtt_m3u8_name); |
|
|
|
avformat_free_context(vs->vtt_avf); |
|
avformat_free_context(vs->avf); |
|
if (hls->resend_init_file) |
|
av_freep(&vs->init_buffer); |
|
hls_free_segments(vs->segments); |
|
hls_free_segments(vs->old_segments); |
|
av_freep(&vs->m3u8_name); |
|
av_freep(&vs->streams); |
|
} |
|
|
|
ff_format_io_close(s, &hls->m3u8_out); |
|
ff_format_io_close(s, &hls->sub_m3u8_out); |
|
ff_format_io_close(s, &hls->http_delete); |
|
av_freep(&hls->key_basename); |
|
av_freep(&hls->var_streams); |
|
av_freep(&hls->cc_streams); |
|
av_freep(&hls->master_m3u8_url); |
|
} |
|
|
|
static int hls_write_trailer(struct AVFormatContext *s) |
|
{ |
|
HLSContext *hls = s->priv_data; |
|
AVFormatContext *oc = NULL; |
|
AVFormatContext *vtt_oc = NULL; |
|
char *old_filename = NULL; |
|
const char *proto = NULL; |
|
int use_temp_file = 0; |
|
int i; |
|
int ret = 0; |
|
VariantStream *vs = NULL; |
|
AVDictionary *options = NULL; |
|
int range_length, byterange_mode; |
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) { |
|
char *filename = NULL; |
|
vs = &hls->var_streams[i]; |
|
oc = vs->avf; |
|
vtt_oc = vs->vtt_avf; |
|
old_filename = av_strdup(oc->url); |
|
use_temp_file = 0; |
|
|
|
if (!old_filename) { |
|
return AVERROR(ENOMEM); |
|
} |
|
if (hls->key_info_file || hls->encrypt) { |
|
av_dict_set(&options, "encryption_key", vs->key_string, 0); |
|
av_dict_set(&options, "encryption_iv", vs->iv_string, 0); |
|
filename = av_asprintf("crypto:%s", oc->url); |
|
} else { |
|
filename = av_asprintf("%s", oc->url); |
|
} |
|
if (!filename) { |
|
av_freep(&old_filename); |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) { |
|
int range_length = 0; |
|
if (!vs->init_range_length) { |
|
uint8_t *buffer = NULL; |
|
av_write_frame(oc, NULL); /* Flush any buffered data */ |
|
|
|
range_length = avio_close_dyn_buf(oc->pb, &buffer); |
|
avio_write(vs->out, buffer, range_length); |
|
av_freep(&buffer); |
|
vs->init_range_length = range_length; |
|
avio_open_dyn_buf(&oc->pb); |
|
vs->packets_written = 0; |
|
vs->start_pos = range_length; |
|
byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0); |
|
if (!byterange_mode) { |
|
ff_format_io_close(s, &vs->out); |
|
hlsenc_io_close(s, &vs->out, vs->base_output_dirname); |
|
} |
|
} |
|
} |
|
if (!(hls->flags & HLS_SINGLE_FILE)) { |
|
set_http_options(s, &options, hls); |
|
ret = hlsenc_io_open(s, &vs->out, filename, &options); |
|
if (ret < 0) { |
|
av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url); |
|
goto failed; |
|
} |
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) |
|
write_styp(vs->out); |
|
} |
|
ret = flush_dynbuf(vs, &range_length); |
|
if (ret < 0) |
|
goto failed; |
|
|
|
vs->size = range_length; |
|
ret = hlsenc_io_close(s, &vs->out, filename); |
|
if (ret < 0) { |
|
av_log(s, AV_LOG_WARNING, "upload segment failed, will retry with a new http session.\n"); |
|
ff_format_io_close(s, &vs->out); |
|
ret = hlsenc_io_open(s, &vs->out, filename, &options); |
|
if (ret < 0) { |
|
av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url); |
|
goto failed; |
|
} |
|
reflush_dynbuf(vs, &range_length); |
|
ret = hlsenc_io_close(s, &vs->out, filename); |
|
if (ret < 0) |
|
av_log(s, AV_LOG_WARNING, "Failed to upload file '%s' at the end.\n", oc->url); |
|
} |
|
if (hls->flags & HLS_SINGLE_FILE) { |
|
if (hls->key_info_file || hls->encrypt) { |
|
vs->size = append_single_file(s, vs); |
|
} |
|
hlsenc_io_close(s, &vs->out_single_file, vs->basename); |
|
} |
|
failed: |
|
av_freep(&vs->temp_buffer); |
|
av_dict_free(&options); |
|
av_freep(&filename); |
|
av_write_trailer(oc); |
|
if (oc->url[0]) { |
|
proto = avio_find_protocol_name(oc->url); |
|
use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE); |
|
} |
|
|
|
// rename that segment from .tmp to the real one |
|
if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) { |
|
hls_rename_temp_file(s, oc); |
|
av_freep(&old_filename); |
|
old_filename = av_strdup(oc->url); |
|
|
|
if (!old_filename) { |
|
return AVERROR(ENOMEM); |
|
} |
|
} |
|
|
|
/* after av_write_trailer, then duration + 1 duration per packet */ |
|
hls_append_segment(s, hls, vs, vs->duration + vs->dpp, vs->start_pos, vs->size); |
|
|
|
sls_flag_file_rename(hls, vs, old_filename); |
|
|
|
if (vtt_oc) { |
|
if (vtt_oc->pb) |
|
av_write_trailer(vtt_oc); |
|
vs->size = avio_tell(vs->vtt_avf->pb) - vs->start_pos; |
|
ff_format_io_close(s, &vtt_oc->pb); |
|
} |
|
ret = hls_window(s, 1, vs); |
|
if (ret < 0) { |
|
av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n"); |
|
ff_format_io_close(s, &vs->out); |
|
hls_window(s, 1, vs); |
|
} |
|
ffio_free_dyn_buf(&oc->pb); |
|
|
|
av_free(old_filename); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static int hls_init(AVFormatContext *s) |
|
{ |
|
int ret = 0; |
|
int i = 0; |
|
int j = 0; |
|
HLSContext *hls = s->priv_data; |
|
const char *pattern; |
|
VariantStream *vs = NULL; |
|
const char *vtt_pattern = hls->flags & HLS_SINGLE_FILE ? ".vtt" : "%d.vtt"; |
|
char *p = NULL; |
|
int http_base_proto = ff_is_http_proto(s->url); |
|
int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1; |
|
double initial_program_date_time = av_gettime() / 1000000.0; |
|
|
|
if (hls->use_localtime) { |
|
pattern = get_default_pattern_localtime_fmt(s); |
|
} else { |
|
pattern = hls->segment_type == SEGMENT_TYPE_FMP4 ? "%d.m4s" : "%d.ts"; |
|
if (hls->flags & HLS_SINGLE_FILE) |
|
pattern += 2; |
|
} |
|
|
|
hls->has_default_key = 0; |
|
hls->has_video_m3u8 = 0; |
|
ret = update_variant_stream_info(s); |
|
if (ret < 0) { |
|
av_log(s, AV_LOG_ERROR, "Variant stream info update failed with status %x\n", |
|
ret); |
|
return ret; |
|
} |
|
|
|
if (!hls->method && http_base_proto) { |
|
av_log(hls, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n"); |
|
} |
|
|
|
ret = validate_name(hls->nb_varstreams, s->url); |
|
if (ret < 0) |
|
return ret; |
|
|
|
if (hls->segment_filename) { |
|
ret = validate_name(hls->nb_varstreams, hls->segment_filename); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) { |
|
ret = validate_name(hls->nb_varstreams, hls->fmp4_init_filename); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
if (hls->subtitle_filename) { |
|
ret = validate_name(hls->nb_varstreams, hls->subtitle_filename); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
if (hls->master_pl_name) { |
|
ret = update_master_pl_info(s); |
|
if (ret < 0) { |
|
av_log(s, AV_LOG_ERROR, "Master stream info update failed with status %x\n", |
|
ret); |
|
return ret; |
|
} |
|
} |
|
|
|
if ((hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) || |
|
(hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH) || |
|
(hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME)) { |
|
time_t t = time(NULL); |
|
if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH) { |
|
hls->start_sequence = av_gettime(); |
|
} else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) { |
|
hls->start_sequence = (int64_t)t; |
|
} else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME) { |
|
char b[15]; |
|
struct tm *p, tmbuf; |
|
if (!(p = localtime_r(&t, &tmbuf))) |
|
return AVERROR(errno); |
|
if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p)) |
|
return AVERROR(ENOMEM); |
|
hls->start_sequence = strtoll(b, NULL, 10); |
|
} |
|
av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence); |
|
} |
|
|
|
hls->recording_time = hls->init_time && hls->max_nb_segments > 0 ? hls->init_time : hls->time; |
|
|
|
if (hls->flags & HLS_SPLIT_BY_TIME && hls->flags & HLS_INDEPENDENT_SEGMENTS) { |
|
// Independent segments cannot be guaranteed when splitting by time |
|
hls->flags &= ~HLS_INDEPENDENT_SEGMENTS; |
|
av_log(s, AV_LOG_WARNING, |
|
"'split_by_time' and 'independent_segments' cannot be " |
|
"enabled together. Disabling 'independent_segments' flag\n"); |
|
} |
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) { |
|
vs = &hls->var_streams[i]; |
|
|
|
ret = format_name(s->url, &vs->m3u8_name, i, vs->varname); |
|
if (ret < 0) |
|
return ret; |
|
|
|
vs->sequence = hls->start_sequence; |
|
vs->start_pts = AV_NOPTS_VALUE; |
|
vs->end_pts = AV_NOPTS_VALUE; |
|
vs->current_segment_final_filename_fmt[0] = '\0'; |
|
vs->initial_prog_date_time = initial_program_date_time; |
|
|
|
for (j = 0; j < vs->nb_streams; j++) { |
|
vs->has_video += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO; |
|
/* Get one video stream to reference for split segments |
|
* so use the first video stream index. */ |
|
if ((vs->has_video == 1) && (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) { |
|
vs->reference_stream_index = vs->streams[j]->index; |
|
} |
|
vs->has_subtitle += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE; |
|
} |
|
|
|
if (vs->has_video > 1) |
|
av_log(s, AV_LOG_WARNING, "More than a single video stream present, expect issues decoding it.\n"); |
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) { |
|
vs->oformat = av_guess_format("mp4", NULL, NULL); |
|
} else { |
|
vs->oformat = av_guess_format("mpegts", NULL, NULL); |
|
} |
|
if (!vs->oformat) |
|
return AVERROR_MUXER_NOT_FOUND; |
|
|
|
if (hls->segment_filename) { |
|
ret = format_name(hls->segment_filename, &vs->basename, i, vs->varname); |
|
if (ret < 0) |
|
return ret; |
|
} else { |
|
p = strrchr(vs->m3u8_name, '.'); |
|
if (p) |
|
*p = '\0'; |
|
|
|
vs->basename = av_asprintf("%s%s", vs->m3u8_name, pattern); |
|
if (!vs->basename) |
|
return AVERROR(ENOMEM); |
|
|
|
if (p) |
|
*p = '.'; |
|
} |
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) { |
|
if (hls->nb_varstreams > 1) |
|
fmp4_init_filename_len += strlen(POSTFIX_PATTERN); |
|
if (hls->flags & HLS_SINGLE_FILE) { |
|
vs->fmp4_init_filename = av_strdup(vs->basename); |
|
if (!vs->fmp4_init_filename) |
|
return AVERROR(ENOMEM); |
|
} else { |
|
vs->fmp4_init_filename = av_malloc(fmp4_init_filename_len); |
|
if (!vs->fmp4_init_filename) |
|
return AVERROR(ENOMEM); |
|
av_strlcpy(vs->fmp4_init_filename, hls->fmp4_init_filename, |
|
fmp4_init_filename_len); |
|
if (hls->nb_varstreams > 1) { |
|
if (av_stristr(vs->fmp4_init_filename, "%v")) { |
|
av_freep(&vs->fmp4_init_filename); |
|
ret = format_name(hls->fmp4_init_filename, |
|
&vs->fmp4_init_filename, i, vs->varname); |
|
} else { |
|
ret = append_postfix(vs->fmp4_init_filename, fmp4_init_filename_len, i); |
|
} |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
if (hls->use_localtime) { |
|
int r; |
|
char *expanded = NULL; |
|
|
|
r = strftime_expand(vs->fmp4_init_filename, &expanded); |
|
if (r < 0) { |
|
av_log(s, AV_LOG_ERROR, "Could not get segment filename with strftime\n"); |
|
return r; |
|
} |
|
av_free(vs->fmp4_init_filename); |
|
vs->fmp4_init_filename = expanded; |
|
} |
|
|
|
p = strrchr(vs->m3u8_name, '/'); |
|
if (p) { |
|
char tmp = *(++p); |
|
*p = '\0'; |
|
vs->base_output_dirname = av_asprintf("%s%s", vs->m3u8_name, |
|
vs->fmp4_init_filename); |
|
*p = tmp; |
|
} else { |
|
vs->base_output_dirname = av_strdup(vs->fmp4_init_filename); |
|
} |
|
if (!vs->base_output_dirname) |
|
return AVERROR(ENOMEM); |
|
} |
|
} |
|
|
|
ret = hls->use_localtime ? sls_flag_check_duration_size(hls, vs) : sls_flag_check_duration_size_index(hls); |
|
if (ret < 0) |
|
return ret; |
|
|
|
if (vs->has_subtitle) { |
|
vs->vtt_oformat = av_guess_format("webvtt", NULL, NULL); |
|
if (!vs->vtt_oformat) |
|
return AVERROR_MUXER_NOT_FOUND; |
|
|
|
p = strrchr(vs->m3u8_name, '.'); |
|
if (p) |
|
*p = '\0'; |
|
|
|
vs->vtt_basename = av_asprintf("%s%s", vs->m3u8_name, vtt_pattern); |
|
if (!vs->vtt_basename) |
|
return AVERROR(ENOMEM); |
|
|
|
if (hls->subtitle_filename) { |
|
ret = format_name(hls->subtitle_filename, &vs->vtt_m3u8_name, i, vs->varname); |
|
if (ret < 0) |
|
return ret; |
|
} else { |
|
vs->vtt_m3u8_name = av_asprintf("%s_vtt.m3u8", vs->m3u8_name); |
|
if (!vs->vtt_m3u8_name) |
|
return AVERROR(ENOMEM); |
|
} |
|
if (p) |
|
*p = '.'; |
|
} |
|
|
|
if ((ret = hls_mux_init(s, vs)) < 0) |
|
return ret; |
|
|
|
if (hls->flags & HLS_APPEND_LIST) { |
|
parse_playlist(s, vs->m3u8_name, vs); |
|
vs->discontinuity = 1; |
|
if (hls->init_time > 0) { |
|
av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time," |
|
" hls_init_time value will have no effect\n"); |
|
hls->init_time = 0; |
|
hls->recording_time = hls->time; |
|
} |
|
} |
|
|
|
if ((ret = hls_start(s, vs)) < 0) |
|
return ret; |
|
vs->number++; |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
#define OFFSET(x) offsetof(HLSContext, x) |
|
#define E AV_OPT_FLAG_ENCODING_PARAM |
|
static const AVOption options[] = { |
|
{"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E}, |
|
{"hls_time", "set segment length", OFFSET(time), AV_OPT_TYPE_DURATION, {.i64 = 2000000}, 0, INT64_MAX, E}, |
|
{"hls_init_time", "set segment length at init list", OFFSET(init_time), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX, E}, |
|
{"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E}, |
|
{"hls_delete_threshold", "set number of unreferenced segments to keep before deleting", OFFSET(hls_delete_threshold), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, E}, |
|
{"hls_vtt_options","set hls vtt list of options for the container format used for hls", OFFSET(vtt_format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E}, |
|
{"hls_allow_cache", "explicitly set whether the client MAY (1) or MUST NOT (0) cache media segments", OFFSET(allowcache), AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX, E}, |
|
{"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E}, |
|
{"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E}, |
|
{"hls_segment_options","set segments files format options of hls", OFFSET(format_options), AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, E}, |
|
{"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E}, |
|
{"hls_key_info_file", "file with key URI and key file path", OFFSET(key_info_file), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E}, |
|
{"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E}, |
|
{"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E}, |
|
{"hls_enc_key_url", "url to access the key to decrypt the segments", OFFSET(key_url), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E}, |
|
{"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E}, |
|
{"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E}, |
|
{"hls_segment_type", "set hls segment files type", OFFSET(segment_type), AV_OPT_TYPE_INT, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, SEGMENT_TYPE_FMP4, E, .unit = "segment_type"}, |
|
{"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, .unit = "segment_type"}, |
|
{"fmp4", "make segment file to fragment mp4 files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_FMP4 }, 0, UINT_MAX, E, .unit = "segment_type"}, |
|
{"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E}, |
|
{"hls_fmp4_init_resend", "resend fragment mp4 init file after refresh m3u8 every time", OFFSET(resend_init_file), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E }, |
|
{"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"single_file", "generate a single media file indexed with byte ranges", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SINGLE_FILE }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"temp_file", "write segment and playlist to temporary file and rename when complete", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_TEMP_FILE }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"delete_segments", "delete segment files that are no longer part of the playlist", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DELETE_SEGMENTS }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"split_by_time", "split the hls segment by time which user set by hls_time", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SPLIT_BY_TIME }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"append_list", "append the new segments into old hls segment list", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_APPEND_LIST }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"second_level_segment_index", "include segment index in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_INDEX }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"second_level_segment_duration", "include segment duration in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_DURATION }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"second_level_segment_size", "include segment size in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_SIZE }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"independent_segments", "add EXT-X-INDEPENDENT-SEGMENTS, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_INDEPENDENT_SEGMENTS }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"iframes_only", "add EXT-X-I-FRAMES-ONLY, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_I_FRAMES_ONLY }, 0, UINT_MAX, E, .unit = "flags"}, |
|
{"strftime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E }, |
|
{"strftime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E }, |
|
{"hls_playlist_type", "set the HLS playlist type", OFFSET(pl_type), AV_OPT_TYPE_INT, {.i64 = PLAYLIST_TYPE_NONE }, 0, PLAYLIST_TYPE_NB-1, E, .unit = "pl_type" }, |
|
{"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, .unit = "pl_type" }, |
|
{"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, .unit = "pl_type" }, |
|
{"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E}, |
|
{"hls_start_number_source", "set source of first number in sequence", OFFSET(start_sequence_source_type), AV_OPT_TYPE_INT, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, 0, HLS_START_SEQUENCE_LAST-1, E, .unit = "start_sequence_source_type" }, |
|
{"generic", "start_number value (default)", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, INT_MIN, INT_MAX, E, .unit = "start_sequence_source_type" }, |
|
{"epoch", "seconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, .unit = "start_sequence_source_type" }, |
|
{"epoch_us", "microseconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, .unit = "start_sequence_source_type" }, |
|
{"datetime", "current datetime as YYYYMMDDhhmmss", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_FORMATTED_DATETIME }, INT_MIN, INT_MAX, E, .unit = "start_sequence_source_type" }, |
|
{"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E}, |
|
{"var_stream_map", "Variant stream map string", OFFSET(var_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E}, |
|
{"cc_stream_map", "Closed captions stream map string", OFFSET(cc_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E}, |
|
{"master_pl_name", "Create HLS master playlist with this name", OFFSET(master_pl_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E}, |
|
{"master_pl_publish_rate", "Publish master play list every after this many segment intervals", OFFSET(master_publish_rate), AV_OPT_TYPE_INT, {.i64 = 0}, 0, UINT_MAX, E}, |
|
{"http_persistent", "Use persistent HTTP connections", OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E }, |
|
{"timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E }, |
|
{"ignore_io_errors", "Ignore IO errors for stable long-duration runs with network output", OFFSET(ignore_io_errors), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E }, |
|
{"headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E }, |
|
{ NULL }, |
|
}; |
|
|
|
static const AVClass hls_class = { |
|
.class_name = "hls muxer", |
|
.item_name = av_default_item_name, |
|
.option = options, |
|
.version = LIBAVUTIL_VERSION_INT, |
|
}; |
|
|
|
|
|
const FFOutputFormat ff_hls_muxer = { |
|
.p.name = "hls", |
|
.p.long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"), |
|
.p.extensions = "m3u8", |
|
.p.audio_codec = AV_CODEC_ID_AAC, |
|
.p.video_codec = AV_CODEC_ID_H264, |
|
.p.subtitle_codec = AV_CODEC_ID_WEBVTT, |
|
#if FF_API_ALLOW_FLUSH |
|
.p.flags = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_NODIMENSIONS, |
|
#else |
|
.p.flags = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_NODIMENSIONS, |
|
#endif |
|
.p.priv_class = &hls_class, |
|
.flags_internal = FF_FMT_ALLOW_FLUSH, |
|
.priv_data_size = sizeof(HLSContext), |
|
.init = hls_init, |
|
.write_header = hls_write_header, |
|
.write_packet = hls_write_packet, |
|
.write_trailer = hls_write_trailer, |
|
.deinit = hls_deinit, |
|
};
|
|
|