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20 lines
791 B
Markdown
20 lines
791 B
Markdown
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### Samples
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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.
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### Extract samples for stream 1
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```sh
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$ fq '.streams[1].samples[] | tobytes' file.avi > stream01.mp3
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```
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### Show stream summary
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```sh
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$ 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
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```
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### References
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- [AVI RIFF File Reference](https://learn.microsoft.com/en-us/windows/win32/directshow/avi-riff-file-reference)
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- [OpenDML AVI File Format Extensions](http://www.jmcgowan.com/odmlff2.pdf)
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