Any plans for Freeformat VBR in LAME? |
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Any plans for Freeformat VBR in LAME? |
 Oct 22 2012, 19:26
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#1
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Group: Members Posts: 151 Joined: 22-July 12 Member No.: 101637  |
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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Oct 22 2012, 19:34
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#2
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 Group: Developer Posts: 2980 Joined: 2-December 07 Member No.: 49183 |
Freeformat is always CBR.
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Oct 22 2012, 19:45
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#3
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 Winamp Developer Group: Developer Posts: 662 Joined: 17-July 05 From: Ashburn, VA Member No.: 23375 |
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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Oct 22 2012, 20:57
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#4
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Group: Members Posts: 18 Joined: 23-September 09 Member No.: 73405 |
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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Oct 22 2012, 22:51
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#5
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Winamp Developer Group: Developer Posts: 662 Joined: 17-July 05 From: Ashburn, VA Member No.: 23375 |
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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Oct 24 2012, 04:29
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#6
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 Group: Members Posts: 349 Joined: 31-March 06 From: Houston, Texas Member No.: 29046 |
Newer codecs (AAC, Vorbis) are more robust in every way, they've got a better quality-to-filesize ratio. The only reason people still use MP3 is because it's compatible with everything and will play everywhere.
When you go to free-format, you've broken that compatibility, and there's no reason anymore to stay locked in to MP3. Might as well go to better codecs if you're going to break that compatibility. So there's very little incentive for anyone to improve upon freeformat encoding. Besides, I've got some FLACs that weigh in at under 640 kb/s. -------------------- http://www.last.fm/user/sls/
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Lo-Fi Version | Time is now: 21st May 2013 - 08:55 |
