Codec
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Codec is short for coder/decoder. For portability to almost all decoders, we recommend using vcodec=mp1v (MPEG 1 video), acodec=mpga (MPEG 1 layer 1 audio), and mux=mpeg1 (MPEG 1 multiplexing).
The minimal command to transcode from a capture card to a portable MPEG file is thus: vlc v4l:// :v4l-norm=1: '--sout=#transcode{vcodec=mp1v,vb=2030,audio-sync,acodec=mpga,ab=192,channels=2}:duplicate{dst=std{access=file,mux=mpeg1,url="out_file.mpg"}}'
These MPEG files have been verified to work with:
- Windows Media Player 10
- Apple QuickTime Player 7
- XINE 1.0
- ffplay
- xanim 2.80 (no audio)
Video Codecs
- (vcodec=mp1v) MPEG-1 (recommended for portability)
- (vcodec=mp2v) MPEG-2
- (vcodec=mp4v) MPEG-4
- Sorenson Video
- Windows Media Video
- Digital Video
- (vcodec=MJPG) MJPEG
- (vcodec=H263) H263
- (vcodec=h264) H264
- (vcodec=theo) Theora
- Indeo Video
- Real Media Video
- Cinepak
- On2 VP
- Flash Video
- Creative YUV
- Huffman YUV
Audio Codecs
- (acodec=mpga) MPEG audio (recommended for portability)
- (acodec=mp3) MP3 audio
- (acodec=mp4a) MP4 audio
- (acodec=a52 or ac3) Dolby Digital (AC3 or A52)
- DTS
- (acodec=vorb) Vorbis
- (acodec=spx) Speex
- AAC (Advanced Audio Coding)
- Windows Media Audio
- DV Audio
- (acodec=flac or fl32) FLAC
- LPCM
- ADPCM
- AMR
- QuickTime Audio
- Real Audio
- MACE
- MusePack
