want to convert a avi file to flv? extract the sound from a flv file and save it as mp3? see below:
1. Getting info from a video file
ffmpeg -i video.avi
2. Turn a sequence of images into video
ffmpeg -f image2 -i image%d.jpg video.mpg
3. Turn a video into a sequence of images
ffmpeg -i video.mpg image%d.jpg
4. Encode video for Ipod/IPhone
ffmpeg -i source_video_file.avi -acodec aac -ab 128kb -vcodec mpeg4 -b 1200kb -mbd 2 -flags +4mv -trell 1 -aic 2 -cmp 2 -subcmp 2 -s 320×180 -title X output_file.mp4
5. Encode video for PSP
ffmpeg -i source_video_file.avi -b 300 -s 320×240 -vcodec xvid -ab 32 -ar 24000 -acodec aac output_file.mp4ORffmpeg -i “OriginalFile.avi” -f psp -r 29.97 -b 768k -ar 24000 -ab 64k -s 320×240 “OutputFile.mp4”
6. Extract audio from a video file and save it as mp3 format
ffmpeg -i source_video_file.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 output_file.mp3
7. Convert a wave file to mp3
ffmpeg -i original_audio_file.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 output_file.mp3
8. Convert a avi video to mpeg
ffmpeg -i original_movie.avi output_file.mpg
9. Convert a mpeg video to avi
ffmpeg -i original_movie.mpg output_file.avi
10. Convert a avi video to uncompressed animated gif
ffmpeg -i original_movie.avi output_file.gif
11. Add audio to an existing video-only file (mix audio and video)
ffmpeg -i son.wav -i original_movie.avi output_file.mpg
12. Convert a avi video to flv (flash video)
ffmpeg -i original_movie.avi -ab 56 -ar 44100 -b 200 -r 15 -s 320×240 -f flv output_file.flv
13. Convert a flv video to mpeg
ffmpeg -i myFile.flv -ab 56 -ar 22050 -b 500 -s 320×240 myFile.mpg
14. Convert a avi video to dv
ffmpeg -i original_movie.avi -s ntsc -r ntsc -aspect 4:3 -ar 48000 -ac 2 output_file.dvORffmpeg -i original_movie.avi -target ntsc-dv output_file.dv
15. Convert a avi video to mpeg specifically for DVD creation
ffmpeg -i source_video.avi -target ntsc-dvd -ps 2000000000 -aspect 16:9 finale_video.mpeg
16. Compress a avi video to Divx
ffmpeg -i original_movie.avi -s 320×240 -vcodec msmpeg4v2 output_file.avi
17. Convert a Ogg Theora video to mpeg specifically for DVD creation
ffmpeg -i original_movie.ogm -s 720×576 -vcodec mpeg2video -acodec mp3 output_file.mpg
18. Convert a avi video to mpeg2 for SVCD creation
ffmpeg -i original_movie.avi -target ntsc-svcd output_file.mpg
19. Convert a avi video to mpeg2 for VCD creation
ffmpeg -i original_movie.avi -target ntsc-vcd output_file.mpg