#8042: AMD screen record + h/w vaapi encode to mkv fails
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Reporter: soreau | Owner:
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: git-master | Resolution:
Keywords: vaapi | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by jamrial):
* keywords: radeonsi amd mkv => vaapi
Comment:
ff_isom_write_avcc() is returning an error, meaning the h264_vaapi encoder
is either sending invalid extradata, or none at all, during init().
Apparently, the latter is the most likely case, probably due to a
featureless driver.
The Matroska muxer checks the return value for errors and aborts, whereas
the mp4 one ignores it and keeps going, creating a non spec complaint file
that may or may not play depending on the presence of in-band headers, and
how strict the demuxer is.
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Ticket URL: <https://trac.ffmpeg.org/ticket/8042#comment:1>
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