* muxing : unused * demuxing: set by user */ unsigned int max_index_size; /** * Maximum amount of memory in bytes to use for buffering frames * obtained from realtime capture devices. */ unsigned int max_picture_buffer; unsigned int nb_chapters; AVChapter **chapters; /** * Flags t...
set "md=%temp%\%~n0!ran!_temp" rem 输出文件夹(如果为空则输出到该脚本所在目录) set save= rem 输出帧率 set fps=60 rem encoder可选编码: x264;x265 set encoder=x264 rem 改变输出分辨率(补帧速度太慢可以改小输出分辨率,不填写就是输出原视频的分辨率。) ...
* muxing : unused * demuxing: set by user */ unsigned int max_index_size; /** * Maximum amount of memory in bytes to use for buffering frames * obtained from realtime capture devices. */ unsigned int max_picture_buffer; unsigned int nb_chapters; AVChapter **chapters; /** * Flags t...
貌似ffmpeg里video_sync_method一直设为-1。AVFMT_VARIABLE_FPS应该是变帧率的意思。这种情况下,vdelta<=0.6,表示位于当前帧之前,也舍弃该帧,nb_frames = 0;vdelta>0.6表示位于当前帧之后,直接把该帧的时间戳作为输出的时间出来输出该帧;0.6<vdelta<=0.6时,不做任何处理,nb_frames 根据默认值为1。 l 情况三...
-vframes number set the number of video frames to output 设置视频文件的帧数 -r rate set frame rate (Hz value, fraction or abbreviation)设置帧率 -fpsmax rate set max frame rate (Hz value, fraction or abbreviation)设置最 大帧率 -s size set frame size (WxH or abbreviation) 设...
fps=time_scale/num_units_in_tick; 二、PPS帧 PPS的全称是Picture Paramater Set,中文叫做图像参数集。PPS保存着视频帧的编码参数,包括熵编码模式、切片分割类型、初始量化参数、色度量化参数等等。PPS的详细格式在H.264标准协议中(文档的7.3.2.2部分)规定,内部各字段的取值情况如下图所示。
-r rate set frame rate (Hz value, fraction or abbreviation) -fpsmax rate set max frame rate (Hz value, fraction or abbreviation) -s size set frame size (WxH or abbreviation) -aspect aspect set aspect ratio (4:3, 16:9 or 1.3333, 1.7777) ...
* - muxing: May be set by the caller before avformat_write_header(). */ AVRational avg_frame_rate; 1. 2. 3. 4. 5. 6. 7. 8. 5 . 帧率 FPS 计算 :调用 av_q2d(frame_rate) 方法 , 或者直接将 AVRational 结构体中的分子分母相除 , 两种方式都可以获得帧率 ( FPS ) 值 ; ...
+ av_log(NULL,AV_LOG_FATAL,"video interlace set disable,flags1=%d flags2=%d\n",flags1,flags2); + } + */ + + + /*if(fps != UNKNOW_VALUES) + { + ost->enc_ctx->framerate = (AVRational){fps,1}; + ost->enc_ctx->time_base = (AVRational) { 1, fps }; ...