切割音频

ffmpeg -i zhaoliying.mp3 -vn -acodec copy -ss 00:00:00 -t 00:00:10 zhaoliying_10s.mp3

切割视频

ffmpeg -i target_video.mp4 -vcodec copy -acodec copy -ss 00:00:00 -t 00:00:05 target_video_5s.mp4

加logo

用ffmpeg给视频批量加水印

提取音频

ffmpeg -i target_video_0829_1.mp4 -f mp3 -vn target_video_0829_1.mp3

改fps

ffmpeg -i "target_video_0829_1.mp4" -r 29.97 -b:v 10M "target_video_0829_1_fps2997.mp4"

拼接视频

ffmpeg -i input1.mp4 -i input2.mp4 -filter_complex hstack output.mp4

图片转视频

ffmpeg -f image2 -i %d.png -vcodec libx264 -r 29.97 -b:v 10M tt.mp4

旋转视频

ffmpeg -i input.mp4 -vf "transpose=1" output.mp4

拼接音频

sox 1.mp3 2.mp3 out.mp3

image.png

所以要调整一下sample-rate和channels
ffmpeg -i 1.mp3 -ac 1 -ar 16000 out1.mp3

改音频为16K

ffmpeg -i 01.mp3 -acodec pcm_s16le -ac 1 -ar 16000 1.wav

改视频size

ffmpeg -i ziyi_C049_bg_4K.mp4 -vf scale=1920:1080 ziyi_C049_bg_1080p.mp4 -hide_banner

切割画面

ffmpeg -i input -vf crop=480:480:186:0 output

https://ask.csdn.net/questions/227737