#9260: avcodec_open2 fails for raw video (AV_CODEC_ID_RAWVIDEO) in 32-bit ffmpeg
DLL
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Reporter: Thomas | Owner: (none)
Type: defect | Status: closed
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution: invalid
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by mkver):
* status: new => closed
* resolution: => invalid
Comment:
There is no "the 32-bit DLL of ffmpeg v4.3.1"; FFmpeg does not distribute
official binaries.
I think I know what your problem is: Since
dcc39ee10e82833ce24aa57926c00ffeb1948198, AV_CODEC_ID_MPEG4 == 12,
AV_CODEC_ID_RAWVIDEO == 13; before said commit, AV_CODEC_ID_MPEG4 == 13
and AV_CODEC_ID_RAWVIDEO == 14. It seems to me that your code uses the new
codec IDs (i.e. you use avcodec_find_encoder(13)), but links against an
old version of libavcodec that is somewhere in your (32-bit) PATH. And
therefore you get the MPEG-4 encoder.
PS: Anyway, avcodec_open2() does not return a codec; it expects the codec
to be either already set (when the AVCodec has already been set in
avcodec_alloc_context()) or it expects it to be given to avcodec_open2().
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9260#comment:2>
FFmpeg <https://ffmpeg.org>
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