[FFmpeg-trac] #5057(undetermined:new): master broke AVCodecContext compatibility with LibAV project

FFmpeg trac at avcodec.org
Fri Dec 4 13:55:33 CET 2015


#5057: master broke AVCodecContext compatibility with LibAV project
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             Reporter:  jyavenard    |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by jyavenard):

 Replying to [comment:18 Cigaes]:
 > Applications are not allowed to allocate {{{AVCodecContext}}}
 themselves. They have to use the library functions:
 {{{avcodec_alloc_context3()}}} for example. The size of
 {{{AVCodecContext}}} can (and ''does'') change due to new fields added to
 the end without notice; if you allocate it using some kind of
 {{{malloc(sizeof(AVCodecContext))}}} code, it will be too small for later
 versions of the library.

 we do not, we use avcodec_alloc_context3.

 Should have said AVPacket

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Ticket URL: <https://trac.ffmpeg.org/ticket/5057#comment:19>
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