其中AVIOInterruptCB的结构体定义如下,包含callback函数指针和opaque: typedef struct AVIOInterruptCB { int (*callback)(void*); void *opaque; } AVIOInterruptCB; 在使用FFmpeg拉流直播时,做直播秒开调优,可以调节probesize和max_analyze_duration。其中
int error_recognition; AVIOInterruptCB interrupt_callback; int debug; #define FF_FDEBUG_TS 0x0001 int ts_id; int audio_preload; int max_chunk_duration; int max_chunk_size; int use_wallclock_as_timestamps; int avoid_negative_ts; int avio_flags; enum AVDurationEstimationMethod duration_esti...
* muxing: set by the user before avformat_write_header() * (mainly useful for AVFMT_NOFILE formats). The callback * should also be passed to avio_open2() if it's used to * open the file. */ AVIOInterruptCB interrupt_callback; /** * Flags to enable debugging. */ int debug; #...
* Custom interrupt callbacks for the I/O layer. * * decoding: set by the user before avformat_open_input(). * encoding: set by the user before avformat_write_header() * (mainly useful for AVFMT_NOFILE formats). The callback * should also be passed to avio_open2() if it's used ...
return ffio_open_whitelist(pb, url, flags, &s->interrupt_callback, options, s->protocol_whitelist, s->protocol_blacklist); } static void io_close_default(AVFormatContext *s, AVIOContext *pb) { avio_close(pb); } 1. 2. 3. 4. ...
AVIOInterruptCBinterrupt_callback; /** * Flags to enable debugging. */ intdebug; #define FF_FDEBUG_TS 0x0001 /** * Maximum buffering duration for interleaving. * * To ensure all the streams are interleaved correctly, * av_interleaved_write_frame() will wait until it has at least one ...
AVIOInterruptCB interrupt_callback; /** * Flags to enable debugging. */ int debug; #define FF_FDEBUG_TS 0x0001 /** * Transport stream id. * This will be moved into demuxer private options. Thus no API/ABI compatibility */ int ts_id; ...
* Custom interrupt callbacks for the I/O layer. * * demuxing: set by the user before avformat_open_input(). * muxing: set by the user before avformat_write_header() * (mainly useful for AVFMT_NOFILE formats). The callback * should also be passed to avio_open2() if it's used to...
1.描述 AVFormatContext描述了一个媒体文件或媒体流的构成和基本信息,位于avformat.h文件中。 2.结构体定义 typedefstructAVFormatContext{/** * A class for logging and @ref avoptions. Set by avformat_alloc_context(). * Exports (de)muxer private options if they exist. */constAVClass*av_class;/**...
*(mainlyusefulforAVFMT_NOFILEformats).Thecallback *shouldalsobepassedtoavio_open2()ifit'susedto *openthefile. */ AVIOInterruptCBinterrupt_callback; /** *Flagstoenabledebugging. */ intdebug; #defineFF_FDEBUG_TS0x0001 /** *Transportstreamid. ...