用FFMPEG对YUV序列进行编辑的笔记

还是单独开一个吧 每次找挺烦的

播放YUV序列

ffmpeg -f rawvideo -pix_fmt yuv420p -s 3840x2160 -i "Wood.yuv" -vf "scale=1280x720" -c:v rawvideo -pix_fmt yuv420p -f sdl "Wood"

4K序列转720P

ffmpeg -f rawvideo -pix_fmt yuv420p -s 3840x2160 -i "G:\xiph_dataset\2020tcsvt\YUV_4K\Traffic Flow.yuv" -vf "scale=1280x720" -c:v rawvideo -pix_fmt yuv420p -f rawvideo "G:\xiph_dataset\2020tcsvt\4K\Traffic Flow.yuv"

按100帧分割视频

for %i in ("G:\xiph_dataset\2020tcsvt\4K\*.yuv") do ffmpeg  -pixel_format yuv420p -f rawvideo -s 1280x720 -i "%i" -vf format=yuv420p -f segment  -segment_frames 100,200 -reset_timestamps 1 -map 0 "G:\xiph_dataset\2020tcsvt\100frame\%~ni_%03d.yuv"

按30帧分割视频

for %i in ("G:\xiph_dataset\2020tcsvt\100frame\*.yuv") do ffmpeg  -pixel_format yuv420p -f rawvideo -s 1280x720 -i "%i" -vf format=yuv420p -f segment  -segment_frames 30,60,90,120,150,180,210,240,270,300,330,360,390,420,450,480,510,540,570,600,630,660,690,720,750,780 -reset_timestamps 1 -map 0 "G:\xiph_dataset\2020tcsvt\my420\%~ni_%03d.yuv"

计算txt行中特殊字符数量

findstr /R /C:"0$" "D:\dls\2022TMM\root\list\local_5_15_test.txt" | find /C /V ""
findstr /R /C:"1$" "D:\dls\2022TMM\root\list\local_5_15_test.txt" | find /C /V ""
findstr /R /C:"2$" "D:\dls\2022TMM\root\list\local_5_15_test.txt" | find /C /V ""