[FFmpeg-trac] #8446(undetermined:reopened): Audio Copy Changes Format

FFmpeg trac at avcodec.org
Fri Dec 27 16:43:17 EET 2019

#8446: Audio Copy Changes Format
             Reporter:  chris319     |                    Owner:
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by Cigaes):

 Replying to [comment:3 chris319]:
 > Are you talking about the original or the copy?

 “Input” in my quote should have answered that question.

 > MediaInfo reports that the audio on the original is pcm_s16be.

 Then you need to file a bug for this software. According to FFmpeg, which
 is more reliable, the original is AAC.

 > As I explained in the ticket, one would think that a literal copy would
 keep the original format.

 This is what is happening.

 > Using -c:a pcm_s16be causes the script to fail.

 Probably because this codec is not supported in MP4. Read the error

Ticket URL: <https://trac.ffmpeg.org/ticket/8446#comment:4>
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