Lavf VS LibFLAC |
Lavf VS LibFLAC |
 Nov 15 2012, 20:50
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#1
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Group: Members Posts: 4 Joined: 15-November 12 Member No.: 104547  |
Okay i converted .m4a file to .flac using FFMPEG like...
ffmpeg -i filename.m4a filename.flac Using spectro analizer to see the file I noticed the one converted with ffmpeg has compression type of "Lavf54.36.100" while all the others on my computer downloaded from different sources have "LibFLAC 1.2.1". I checked this with at least 20 different flac files from different albums and sources. So my question is what is this "Lavf54.36.100" when all other I checked have "LibFLAC 1.2.1"? Screenshots here! |
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Nov 15 2012, 20:54
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#2
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 Group: Members Posts: 4131 Joined: 2-September 02 Member No.: 3264 |
Lavf is part of ffmpeg, so that tag means you've encoded the file with ffmpeg.
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Nov 16 2012, 00:48
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#3
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Group: Members Posts: 4 Joined: 15-November 12 Member No.: 104547 |
QUOTE (saratoga @ Nov 15 2012, 20:54)  Lavf is part of ffmpeg, so that tag means you've encoded the file with ffmpeg. IC! So it's kinda like a "signature" of the software trough which the file was created and not the encoder version itself or something like that... Thanks! |
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Nov 16 2012, 00:54
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#4
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Group: Members Posts: 4131 Joined: 2-September 02 Member No.: 3264 |
QUOTE (fehers @ Nov 15 2012, 19:48) QUOTE (saratoga @ Nov 15 2012, 20:54) Lavf is part of ffmpeg, so that tag means you've encoded the file with ffmpeg. IC! So it's kinda like a "signature" of the software trough which the file was created and not the encoder version itself or something like that... No, its the version and name of the encoder used. |
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Nov 16 2012, 01:29
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#5
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Group: Members Posts: 4 Joined: 15-November 12 Member No.: 104547 |
QUOTE (saratoga @ Nov 16 2012, 00:54) No, its the version and name of the encoder used. Then I don't get it! You say "that tag means you've encoded the file with ffmpeg". Yes, with ffmpeg but I'm assuming ffmpeg is using the "FLAC sources" to do that and not just any codec... The file with the info "Lavf54.36.100" I'm talking about has a .flac extension... This post has been edited by fehers: Nov 16 2012, 01:49 |
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Nov 16 2012, 03:41
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#6
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 Group: Members Posts: 96 Joined: 17-September 06 Member No.: 35303 |
QUOTE (fehers @ Nov 15 2012, 19:29) The file with the info "Lavf54.36.100" I'm talking about has a .flac extension... The term "FLAC" is commonly used both for the file format (a lossless audio codec) and the compression program itself. An easy way to think about it is to compare it to ZIP files. Whether they're made with WinZip, WinRAR, InfoZip, 7-Zip, etc, they all create the same file format. Both libFLAC and ffmpeg (and FLACCL and &c.) create files that follow the FLAC specification. This means (A) the files are lossless compressions of the source file and (B) they can be decoded by any decompressor that adheres to the standard. |
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fehers Lavf VS LibFLAC Nov 15 2012, 20:50
Kohlrabi QUOTE (fehers @ Nov 15 2012, 21:50) Okay ... Nov 15 2012, 22:43
fehers QUOTE (Kohlrabi @ Nov 15 2012, 22:43) I h... Nov 16 2012, 01:12 saratoga I don't know why you would assume that. Ffmpeg... Nov 16 2012, 02:51 |
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Lo-Fi Version | Time is now: 20th May 2013 - 17:34 |
