[FFmpeg-trac] #10079(avcodec:new): libavcodec crash when decoding RTSP stream with VideoToolbox

[FFmpeg]

#10079: libavcodec crash when decoding RTSP stream with VideoToolbox
-------------------------------------+-------------------------------------
             Reporter:  Alessandro   |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:  avcodec      |                  Version:  git-
             Keywords:  crash        |  master
  videotoolbox rtsp ios              |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 When using FFmpeg libavcodec to decode an RTSP stream on iOS, the library
 crashes when invoking `videotoolbox_decoder_callback`: the `VTcontext`
 pointer is null!

 How to reproduce:
 Reproduced this behavior on all the latest stable versions as well as
 master (commit
 [https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/14c60935280d81d333ba9e19f0ebd39f16d8c778
 14c6093528]).
 Using RTSP test stream from `rtsp://rtsp.stream/pattern`.

 It seems this commit
 [https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/768d4c2e2ad17fb275f8e6f9e1ecdab0c16e979e
 768d4c2e2a] introduced the issue.
 The decoding works fine, when using versions before this commit.

 I'll try to submit a patch to ffmpeg-devel mailing list.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10079>
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