AIFF decoding bug (zero length output file)

[auphonic]

ffmpeg cannot read some AIFF input files:

• decoded output files have always size zero
• although ffmpeg/ffprobe shows the correct length of the input file
• in other programs (e.g. audacity) these files are decoded correctly

Tested with ffmpeg 1.1.3 and 1.2 on Ubuntu 12.04 and 12.10 - more details below.

Use the following testfile, to reproduce the problem:
​https://auphonic.com/media/share/testfile.aiff

How to reproduce:

ffmpeg -v 9 -loglevel 99 -i testfile.aiff output.wav

Output of ffmpeg:

ffmpeg -v 9 -loglevel 99 -i testfile.aiff output.wav
ffmpeg version 1.2 Copyright (c) 2000-2013 the FFmpeg developers
  built on Mar 30 2013 10:49:20 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1)
  configuration: --enable-gpl --enable-version3 --enable-nonfree --disable-ffplay --disable-ffserver --disable-avdevice --enable-bzlib --enable-libopencore-amrnb --enable-libfreetype --enable-libopencore-amrwb --enable-libfaac --enable-libgsm --enable-libmp3lame --enable-libschroedinger --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libopus
  libavutil      52. 18.100 / 52. 18.100
  libavcodec     54. 92.100 / 54. 92.100
  libavformat    54. 63.104 / 54. 63.104
  libavfilter     3. 42.103 /  3. 42.103
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
Splitting the commandline.
[...]
Opening an input file: testfile.aiff.
[aiff @ 0x9aa53e0] Format aiff probed with size=2048 and score=100
[aiff @ 0x9aa53e0] id3v2 ver:3 flags:00 len:35
[aiff @ 0x9aa53e0] File position before avformat_find_stream_info() is 0
[aiff @ 0x9aa53e0] File position after avformat_find_stream_info() is 0
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, aiff, from 'testfile.aiff':
  Metadata:
    encoded_by      : Audio Hijack Pro v2.10.6
  Duration: 00:00:15.37, start: 0.000000, bitrate: 1411 kb/s
    Stream #0:0, 0, 1/44100: Audio: pcm_s16be, 44100 Hz, stereo, s16, 1411 kb/s
Successfully opened the file.
Parsing a group of options: output file output.wav.
Successfully parsed a group of options.
Opening an output file: output.wav.
Successfully opened the file.
[abuffer @ 0x9a94260] Setting entry with key 'time_base' to value '1/44100'
[abuffer @ 0x9a94260] Setting entry with key 'sample_rate' to value '44100'
[abuffer @ 0x9a94260] Setting entry with key 'sample_fmt' to value 's16'
[abuffer @ 0x9a94260] Setting entry with key 'channel_layout' to value '0x3'
[graph 0 input from stream 0:0 @ 0x9a946a0] tb:1/44100 samplefmt:s16 samplerate:44100 chlayout:0x3
[aformat @ 0x9a942c0] Setting entry with key 'sample_fmts' to value 's16'
Output #0, wav, to 'output.wav':
  Metadata:
    ITCH            : Audio Hijack Pro v2.10.6
    ISFT            : Lavf54.63.104
    Stream #0:0, 0, 1/44100: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (pcm_s16be -> pcm_s16le)
Press [q] to stop, [?] for help
[output stream 0:0 @ 0x9a94700] EOF on sink link output stream 0:0:default.
No more output streams to write to, finishing.
size=       0kB time=00:00:00.00 bitrate=N/A
video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead inf%
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)
Statistics: 32768 bytes read, 2 seeks

Please contact me if you need more information!

[Carl Eugen Hoyos]

Regression since 8ac3868
Patch sent: ​http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/161797

[Carl Eugen Hoyos]

Should be fixed, thank you for the report!