av1_frame_merge dump_extradata h264_metadata imx_dump_header mpeg2_metadata pgs_frame_merge truehd_core av1_frame_split dv_error_marker h264_mp4toannexb media100_to_mjpegb mpeg4_unpack_bframes prores_metadata vp9_metadata av1_metadata eac3_core h264_redundant_pps mjpeg2jpeg noise remove_...
首先判断如果是空帧,传给AVOutputFormat->write_packet一个空帧,同步给协议层实现的write_packet函数,并且调用avio_flush立即写入文件或avio_write_marker写入一个AVIO_DATA_MARKER_FLUSH_POINT节点。 其次如果是未经编码的帧,则直接将该帧传递给写入的函数;否则,正常的帧会都会经过浅拷贝,将AVFormatContext->AVFormatInt...
av1_frame_merge dump_extradata h264_metadata imx_dump_header mpeg2_metadata pgs_frame_merge truehd_core av1_frame_split dv_error_marker h264_mp4toannexb media100_to_mjpegb mpeg4_unpack_bframes prores_metadata vp9_metadata av1_metadata eac3_core h264_redundant_pps mjpeg2jpeg noise remove_...
AVFrame 结构体AVFrame用来存储解码后的(或原始)音频或视频数据,位于avcodec.h文件中。 AVFrame必须由av_frame_alloc()分配内存,同时必须由av_frame_free()释放。 AVFrame分配内存后能够被多次用来存储不同的数据(例如:decoder解码后的帧)。av_frame_unref释放任何持帧的引用,并结构体还原到未被使用的状态。参考...
1、RTMP(Real RTMP（real time messaging protocol）实时消息传输协议 RTMP 给予TCP协议 是一个协议族 包括RTMP基本协议及RTMPT/RTMPS/RTMPE等多种变种 RTMP 内部使用的格式为 FLV 我们
AVIO_DATA_MARKER_SYNC_POINT : AVIO_DATA_MARKER_BOUNDARY_POINT); switch (par->codec_type) { case AVMEDIA_TYPE_VIDEO: avio_w8(pb, FLV_TAG_TYPE_VIDEO); flags = ff_codec_get_tag(flv_video_codec_ids, par->codec_id); flags |= pkt->flags & AV_PKT_FLAG_KEY ? FLV_FRAME_KEY : FLV...
(UAVS3D_CHECK_INVALID_RANGE(seqh->frame_rate_code, 0, 15)) { av_log(avctx, AV_LOG_ERROR, "Invalid frame rate code: %d.\n", seqh->frame_rate_code); seqh->frame_rate_code = 3; // default 25 fps } else { avctx->framerate.num = ff_avs3_frame_rate_tab[seqh->...
invalid numeric argument '/Wtype-limits' check_cflags -Wundef test_cflags -Wundef test_cc -Wundef BEGIN ./ffconf.a0dj7Ew1/test.c 1 int x; END ./ffconf.a0dj7Ew1/test.c cl.exe -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DWIN32_LEAN_AND_MEAN -D_USE_MATH_DEF...
frame_number integer Set the frame number. delay integer qcomp float (encoding,video) Set video quantizer scale compression (VBR). It is used as a constant in the ratecontrol equation. Recommended range for default rc_eq: 0.0-1.0. qblur float (encoding,video) Set video quantizer scale blur...
Set key frame placement. The GOP size sets the maximum distance between key frames; if zero the output stream will be intra-only. The minimum distance is ignored unless it is the same as the GOP size, in which case key frames will always appear at a fixed interval. Not...