[FFmpeg-user] some mp3 files can not be decoded by recent FFmpeg
Kirill Gavrilov
gavr.mail at gmail.com
Sat Aug 10 09:31:56 CEST 2013
Hi all!
After migration to FFmpeg 2.0 I have observed that several old mp3 files (9
from 100) can not be played anymore with the same error - no 'data' tag
found:
./ffmpeg -i anb3.mp3
ffmpeg version N-55410-gd4db7c3 Copyright (c) 2000-2013 the FFmpeg
developers
built on Aug 10 2013 10:58:01 with gcc 4.2.1 (GCC) (Apple Inc. build
5666) (dot 3)
configuration: --enable-swscale --enable-shared --disable-static
--enable-memalign-hack --enable-avfilter --enable-hardcoded-tables
--enable-pthreads --disable-libopenjpeg --enable-runtime-cpudetect
--enable-vda --disable-debug --enable-version3
libavutil 52. 41.100 / 52. 41.100
libavcodec 55. 24.100 / 55. 24.100
libavformat 55. 13.102 / 55. 13.102
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 82.100 / 3. 82.100
libswscale 2. 4.100 / 2. 4.100
libswresample 0. 17.103 / 0. 17.103
[wav @ 0x10180e820] Format wav probed with size=2048 and score=99
[wav @ 0x10180e820] id3v2 ver:2 flags:00 len:85
[wav @ 0x10180e820] no 'data' tag found
[AVIOContext @ 0x101111260] Statistics: 32768 bytes read, 0 seeks
anb3.mp3: Invalid data found when processing input
There no such issues with older release 0.10.2:
[wav @ 0x10100e820] max_analyze_duration 5000000 reached at 5015510
Input #0, wav, from 'anb3.mp3':
Duration: 00:03:11.82, bitrate: 12 kb/s
Stream #0:0: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo, s16,
128 kb/s
I may suppose that these files were encoded with broken encoder but it is
weird that only recent FFmpeg can not play them now...
Could somebody tell me is it regression or new "feature"?
I have prepared 300 KB cut from one sample:
http://sview.cifro-city.ru/trash/anb3.mp3
-----------------------------------------------
Kirill Gavrilov,
Software designer.
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