:: 切片 水印
ffmpeg.exe -y -i E:\test\test.mp4 -vf "movie=logo.png[awm];[in][awm] overlay=25:0 [out]" -hls_time 5 -hls_list_size 0 E:\test\test\vod.m3u8

:: 切片 水印 272x480
ffmpeg.exe -y -i E:\test\test.mp4 -vf "movie=logo.png[awm];[in][awm] overlay=25:0 [out]" -s 272x480 -hls_time 5 -hls_list_size 0 E:\test\test\vod.m3u8

:: 截图 272x480
ffmpeg.exe -i E:\test\test.mp4 -y -f image2 -t 0.001 -s 272x480 E:\test\test\vod.jpg

:: h264 水印 1280x720
ffmpeg.exe -y -i D:\ffmpeg\dj1.mp4 -c:v libx264 -vf "movie=logo.png[awm];[in][awm] overlay=0:0 [out]" -s 1280x720 D:\ffmpeg\mp4\dj1.mp4

:: 修改元数据
qt-faststart.exe D:\ffmpeg\mp4\dj1.mp4 D:\ffmpeg\mp4\dj_1.mp4