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Any plans for Freeformat VBR in LAME?
BFG
post Oct 22 2012, 19:26
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This is purely for curiosity's sake...off the top of my head I can't imagine any practical application for such a format.
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benski
post Oct 22 2012, 19:45
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In theory, it could be VBR if it's packed inside another container format such as MP4, AVI, MKA, etc. However, such a scheme would be non-standard and would require modifications to existing decoders to play properly
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MostlyHarmless
post Oct 22 2012, 20:57
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QUOTE (benski @ Oct 22 2012, 21:45) *
In theory, it could be VBR if it's packed inside another container format such as MP4, AVI, MKA, etc. However, such a scheme would be non-standard and would require modifications to existing decoders to play properly


Isn't it mp3 stream in mp4 container a standard? I thought so...
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benski
post Oct 22 2012, 22:51
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QUOTE (MostlyHarmless @ Oct 22 2012, 15:57) *
QUOTE (benski @ Oct 22 2012, 21:45) *
In theory, it could be VBR if it's packed inside another container format such as MP4, AVI, MKA, etc. However, such a scheme would be non-standard and would require modifications to existing decoders to play properly


Isn't it mp3 stream in mp4 container a standard? I thought so...


It is. But for such a scheme to work, decoders would have to rely on the size stored for each "sample" (packet) in the MP4 mdat, rather than trying to parse it from the MP3 header. I'm not aware of any MP3 decoder APIs that are capable of this, although it would be trivial to add.
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Posts in this topic
- BFG   Any plans for Freeformat VBR in LAME?   Oct 22 2012, 19:26
- - lvqcl   Freeformat is always CBR.   Oct 22 2012, 19:34
- - benski   In theory, it could be VBR if it's packed insi...   Oct 22 2012, 19:45
|- - MostlyHarmless   QUOTE (benski @ Oct 22 2012, 21:45) In th...   Oct 22 2012, 20:57
|- - benski   QUOTE (MostlyHarmless @ Oct 22 2012, 15:5...   Oct 22 2012, 22:51
- - slks   Newer codecs (AAC, Vorbis) are more robust in ever...   Oct 24 2012, 04:29

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