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fq/format/riff/avi.md
Mattias Wadman 0cf46e1196 wav,avi,avc_au: Add avi decoder and refactor wav decoder 
avi and wav now share  common riff decode code
avc_au decoder can now handle annexb format
2022-11-19 13:11:27 +01:00

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Samples

AVI has many redundant ways to index samples so currently .streams[].samples will only include samples the most "modern" way used in the file. That is in order of stream super index, movi ix index then idx1 index.

Extract samples for stream 1

$ fq '.streams[1].samples[] | tobytes' file.avi > stream01.mp3

Show stream summary

$ fq -o decode_samples=false '[.chunks[0] | grep_by(.id=="LIST" and .type=="strl") | grep_by(.id=="strh") as {$type} | grep_by(.id=="strf") as {$format_tag, $compression} | {$type,$format_tag,$compression}]' *.avi

References