[gstreamer-bugs] [Bug 636245] New: [riff] For ADPCM codecs the average bitrate should be calculated instead of trusting the format header

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=636245
  GStreamer | gst-plugins-base | git

           Summary: [riff] For ADPCM codecs the average bitrate should be
                    calculated instead of trusting the format header
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: julien at moutte.net
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


Some ADPCM encoding tools like Oxelon generate WAV files with wrong format
header declaring an invalid bitrate.

As wavparse uses the average bitrate to calculate timestamps and duration the
decoder can be confused by receiving timestamps completely out of sync with the
decoded samples.

ADPCM is a CBR audio codec so we can calculate the average bitrate  instead of
trusting the format header.

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