AIFF QDesign2 - decodes incorretly

[ami_stuff]

QDesign2, mono, 16bit, 11127 Hz

decodec incorrectly, plays fine with QT player

C:\>ffmpeg -i C:\QDesign2.aif out.wav
ffmpeg version git-N-29815-gde545d2, Copyright (c) 2000-2011 the FFmpeg develope
rs
  built on May 11 2011 14:36:19 with gcc 4.5.3
  configuration: --enable-gpl --enable-version3 --enable-memalign-hack --enable-
runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libo
pencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --
enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger
 --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enabl
e-libx264 --enable-libxavs --enable-libxvid --enable-zlib --pkg-config=pkg-confi
g
  libavutil    51.  2. 1 / 51.  2. 1
  libavcodec   53.  5. 0 / 53.  5. 0
  libavformat  53.  0. 3 / 53.  0. 3
  libavdevice  53.  0. 0 / 53.  0. 0
  libavfilter   2.  5. 0 /  2.  5. 0
  libswscale    0. 14. 0 /  0. 14. 0
Input #0, aiff, from 'C:\QDesign2.aif':
  Duration: 00:00:00.00, start: 0.000000, bitrate: 24792 kb/s
    Stream #0.0: Audio: qdm2, 11127 Hz, 1 channels, s16, 24 kb/s
Output #0, wav, to 'out.wav':
  Metadata:
    encoder         : Lavf53.0.3
    Stream #0.0: Audio: pcm_s16le, 11127 Hz, 1 channels, s16, 178 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
Press [q] to stop encoding
Multiple frames in a packet from stream 0
Error while decoding stream #0.0
bad superblock type
Error while decoding stream #0.0es
Error while decoding stream #0.0es
Error while decoding stream #0.0es
Error while decoding stream #0.0
    Last message repeated 39 times
size=     112kB time=5.15 bitrate= 178.1kbits/s
video:0kB audio:112kB global headers:0kB muxing overhead 0.038365%

[Carl Eugen Hoyos]

Not a regression, afaict.

[ami_stuff]

more samples

maybe the problem have something to do with:

aiffdec.c:

    if (version != AIFF_C_VERSION1 || codec->codec_id == CODEC_ID_PCM_S16BE) {
        codec->codec_id = aiff_codec_get_id(codec->bits_per_coded_sample);
        codec->bits_per_coded_sample = av_get_bits_per_sample(codec->codec_id);
        aiff->block_duration = 1;
    } else {
        switch (codec->codec_id) {
        case CODEC_ID_PCM_F32BE:
        case CODEC_ID_PCM_F64BE:
        case CODEC_ID_PCM_S16LE:
        case CODEC_ID_PCM_ALAW:
        case CODEC_ID_PCM_MULAW:
            aiff->block_duration = 1;
            break;
        case CODEC_ID_ADPCM_IMA_QT:
            codec->block_align = 34*codec->channels;
            break;
        case CODEC_ID_MACE3:
            codec->block_align = 2*codec->channels;
            break;
        case CODEC_ID_MACE6:
            codec->block_align = 1*codec->channels;
            break;
        case CODEC_ID_GSM:
            codec->block_align = 33;
            break;
        case CODEC_ID_QCELP:
            codec->block_align = 35;
            break;
        default:
            aiff->block_duration = 1;
            break;
        }
        if (codec->block_align > 0)
            aiff->block_duration = av_get_audio_frame_duration(codec,
                                                               codec->block_align);

?