[FFmpeg-trac] #7547(undetermined:new): When relaying RTMP streams ffmpeg quits with av_interleaved_write_frame message

[FFmpeg]

#7547: When relaying RTMP streams ffmpeg quits with av_interleaved_write_frame
message
-------------------------------------+-------------------------------------
             Reporter:  regstuff     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  regression   |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by ruddell):

 I have this problem on Ubuntu 16.04.5 with v4.1, but not locally on Mac
 with v4.1.  It works with v3.4.5 on Ubuntu as described above.

 I attached a file that shows the issue with the following command (about 4
 seconds in):

 `ffmpeg -re -i issue7547.mp4 -vcodec copy -acodec copy -bsf:a
 aac_adtstoasc -f flv 'rtmp://a.rtmp.youtube.com/live2/stream-key-here'`


 The first commit where streaming hangs, `git bisect` shows the following:

 {{{
 commit 858db4b01fa2b55ee55056c033054ca54ac9b0fd
 Author: Daniel Kucera <daniel.kucera at gmail.com>
 Date:   Tue Oct 17 10:29:30 2017 +0200

     libavformat: not treat 0 as EOF

     transfer_func variable passed to retry_transfer_wrapper
     are h->prot->url_read and h->prot->url_write functions.
     These need to return EOF or other error properly.
     In case of returning >= 0, url_read/url_write is retried
     until error is returned.

     Signed-off-by: Daniel Kucera <daniel.kucera at gmail.com>

 :040000 040000 03f37e2b4749f5f1d21a9a528c0a10eef8ff2cf1
 6c2edb3a01134a03e79534f6cbb048abb59121d2 M      libavformat

 }}}

 The first commit where the error message is correctly displayed, `git
 bisect` shows the following:

 {{{
 commit ed647ab79f9a54d8d3a8e345f6a1643b60b849f4
 Author: Timo Rothenpieler <timo at rothenpieler.org>
 Date:   Thu Jul 26 00:37:35 2018 +0200

     avformat/librtmp: fix returning EOF from Read/Write

     Ticket #7052

 :040000 040000 964b972c7b3df952e7b634e4a76cdefaa8da3622
 200f7038acf21315bee42874f69ae41d6c31315d M      libavformat
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/7547#comment:5>
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