[FFmpeg-trac] #3803(undetermined:new): Incorrect bitrate in RIFF header when wrapping dts in WAV

[FFmpeg]

#3803: Incorrect bitrate in RIFF header when wrapping dts in WAV
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             Reporter:  ptalarbvorm  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Summary of the bug:

 When adding a WAV header to a dts stream, FFmpeg writes the value read
 from the dts "target bitrate" field, which almost-always is not the actual
 bitrate of the stream. DTS in a WAV container is accepted by VirtualDub's
 AVI muxer, and so far I have to hex-edit the WAVved DTS files created
 through FFmpeg.

 How to reproduce:

 1) Create a dts file from an Audio CD track;

 dcaenc -i CD_Track_01.wav -o track_01.dts -b 441

 2) Mux with FFmpeg;

 ffmpeg -i track_01.dts -acodec copy track_01.WAV

 The RIFF header will report "448kbps", instead of *441kbps*, which is the
 correct value.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3803>
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