http://blog.csdn.net/lius1984/article/details/4367150
Organize common ffmpeg commands so that you find them easily.
1. avi to FLV
Ffmpeg-i video_origine.avi-acodec libmp3lame-ab 56k-ar 44100-b 200k-r 15-s 320x240-f flv video_finale.flv
2.AVI turn DivX encoded MPEG4 avi
Ffmpeg-i video_origine.avi-s 320x240-vcodec MSMPEG4 Video_finale.avi
3. Save the audio in AVI to MP3 file
Ffmpeg-i source_video.avi-vn-ar 44100-acodec libmp3lame-ac 2-ab 192k-f mp3 Sound.mp3
4. Convert to 3GP
Ffmpeg-y-I test.mpeg-bitexact-vcodec h263-b 128-r 15-s 176x144
-acodec aac-ac 2-ar 22500-ab 24-f 3gp test.3gp
Or
Ffmpeg-y-I test.wmv-ac 1-acodec libamr_nb-ar 8000-ab 12200-s 176x144-b 128-r
5. Convert to MP4
Ffmpeg-i source_video.avi-b 300k-s 320x240-vcodec xvid-ab 32k-ar 24000-acodec AAC Final_video.mp4
6. Dump M4V from 3GP (direct copy does not re-encode)
Ffmpeg.exe-i Test.3gp-vcodec copy-f M4V test.m4v
Or
Ffmpeg.exe-i test.3gp-f m4v test.m4v (recode)
7. transcoding Convert. F4V to. asf
Ffmpeg.exe-i tf2_trailer2.f4v-vcodec copy-acodec copy-f asf 1.asf
8. Completely lossless Intermediate video format
Ffmpeg-i T_needss_e309_excl_hd.mov-vcodec Huffyuv-acodec Pcm_s16le 2.avi
FFmpeg conversion involves more options, can refer to ffmpeg options in detail
Note:
TS Multiplexing Video:
Ffmpeg-i Test.ts-vcodec copy-f M4V test.264