[FFmpeg-trac] #9445(avcodec:new): QDM2 wrong samplerate

[FFmpeg]

#9445: QDM2 wrong samplerate
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             Reporter:  cgbug       |                    Owner:  (none)
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  qdm2        |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by Carl Eugen Hoyos):

 Should be tested against an original !QuickTime installation
 {{{
 diff --git a/libavcodec/qdm2.c b/libavcodec/qdm2.c
 index 51ca1fb516..8f0c888f59 100644
 --- a/libavcodec/qdm2.c
 +++ b/libavcodec/qdm2.c
 @@ -1613,7 +1613,7 @@ static av_cold int qdm2_decode_init(AVCodecContext
 *avctx)
  {
      static AVOnce init_static_once = AV_ONCE_INIT;
      QDM2Context *s = avctx->priv_data;
 -    int tmp_val, tmp, size;
 +    int tmp_val, tmp, size, sample_rate;
      GetByteContext gb;

      /* extradata parsing
 @@ -1695,7 +1695,9 @@ static av_cold int qdm2_decode_init(AVCodecContext
 *avctx)
      av_channel_layout_uninit(&avctx->ch_layout);
      av_channel_layout_default(&avctx->ch_layout, s->channels);

 -    avctx->sample_rate = bytestream2_get_be32(&gb);
 +    sample_rate = bytestream2_get_be32(&gb);
 +    if (avctx->sample_rate <= 0)
 +        avctx->sample_rate = sample_rate;
      avctx->bit_rate = bytestream2_get_be32(&gb);
      s->group_size = bytestream2_get_be32(&gb);
      s->fft_size = bytestream2_get_be32(&gb);
 }}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/9445#comment:3>
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