<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
Hello,
<br>
<br>
In my project I am using libavutil to calculate MD5 values of raw
undecoded audio data. My reference values can be also obtained
running the command
<br>
<br>
ffmpeg -i test.ogg -acodec copy -f md5 -
<br>
<br>
These reference values have never changed for my test audio files
throughout the history ffmpeg releases, and my own code using
libavutil (<a class="moz-txt-link-freetext"
href="https://github.com/MTG/essentia/blob/master/src/algorithms/io/audioloader.cpp#L204">https://github.com/MTG/essentia/blob/master/src/algorithms/io/audioloader.cpp#L204</a>)
produced the same values.
<br>
<br>
However I get incorrect values starting from ffmpeg version 2.2 for
<b class="moz-txt-star"><span class="moz-txt-tag">*</span>ogg<span
class="moz-txt-tag">*</span></b> files (for other audio formats
the values stay correct). I have tested using homebrew formulas for
ffmpeg and found that previous version of ffmpeg available in brew,
2.1.4, works fine. What was the change in 2.2 version that can
explain this issue for ogg files?
<br>
<br>
<br>
ffmpeg version 2.1.4 Copyright (c) 2000-2014 the FFmpeg developers
<br>
built on Apr 28 2016 18:33:02 with Apple LLVM version 7.0.2
(clang-700.1.81)
<br>
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.1.4
--enable-shared --enable-pthreads --enable-gpl --enable-version3
--enable-nonfree --enable-hardcoded-tables --enable-avresample
--enable-vda --cc=clang --host-cflags= --host-ldflags=
--enable-libx264 --enable-libfaac --enable-libmp3lame
--enable-libxvid
<br>
libavutil 52. 48.101 / 52. 48.101
<br>
libavcodec 55. 39.101 / 55. 39.101
<br>
libavformat 55. 19.104 / 55. 19.104
<br>
libavdevice 55. 5.100 / 55. 5.100
<br>
libavfilter 3. 90.100 / 3. 90.100
<br>
libavresample 1. 1. 0 / 1. 1. 0
<br>
libswscale 2. 5.101 / 2. 5.101
<br>
libswresample 0. 17.104 / 0. 17.104
<br>
libpostproc 52. 3.100 / 52. 3.100
<br>
<br>
<br>
ffmpeg version 2.2 Copyright (c) 2000-2014 the FFmpeg developers
<br>
built on Apr 29 2016 13:22:26 with Apple LLVM version 7.0.2
(clang-700.1.81)
<br>
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.2 --enable-shared
--enable-pthreads --enable-gpl --enable-version3 --enable-nonfree
--enable-hardcoded-tables --enable-avresample --enable-vda
--cc=clang --host-cflags= --host-ldflags= --enable-libx264
--enable-libfaac --enable-libmp3lame --enable-libxvid
<br>
libavutil 52. 66.100 / 52. 66.100
<br>
libavcodec 55. 52.102 / 55. 52.102
<br>
libavformat 55. 33.100 / 55. 33.100
<br>
libavdevice 55. 10.100 / 55. 10.100
<br>
libavfilter 4. 2.100 / 4. 2.100
<br>
libavresample 1. 2. 0 / 1. 2. 0
<br>
libswscale 2. 5.102 / 2. 5.102
<br>
libswresample 0. 18.100 / 0. 18.100
<br>
<br>
<br>
Cheers,
<br>
Dmitry
</body>
</html>