[FFmpeg-trac] #8436(undetermined:new): ffmpeg sets opus audio to stereo in SDP even though it is mono
FFmpeg
trac at avcodec.org
Fri Jan 24 12:30:12 EET 2020
#8436: ffmpeg sets opus audio to stereo in SDP even though it is mono
-------------------------------------+-------------------------------------
Reporter: | Owner:
rudolfs.bundulis |
Type: defect | Status: new
Priority: minor | Component:
| undetermined
Version: unspecified | Resolution:
Keywords: opus rtsp | Blocked By:
sdp |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by rudolfs.bundulis):
Replying to [comment:5 cehoyos]:
> Did you see a05f5052fef3b3743fab7846da12861d8a8098ec?
> Is the comment wrong?
Thanks for the link, I looked at the commit and then at
https://tools.ietf.org/html/rfc7587 and yeah under paragraph 7 it has:
{{{
The media subtype ("opus") goes in SDP "a=rtpmap" as the encoding
name. The RTP clock rate in "a=rtpmap" MUST be 48000, and the
number of channels MUST be 2.
}}}
so the comment is correct, will close the issue.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8436#comment:6>
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