[FFmpeg-trac] #7881(avcodec:new): HEVC encoder crashes including OS on high performance environment
FFmpeg
trac at avcodec.org
Sun May 5 19:19:43 EEST 2019
#7881: HEVC encoder crashes including OS on high performance environment
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Reporter: Nobody2112 | Owner:
Type: defect | Status: new
Priority: normal | Component: avcodec
Version: unspecified | Resolution:
Keywords: libx265 crash | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Nobody2112):
Thanks for the fast response.
As reported in the initial ticket. The problem is independent of the
source video file and also the ffmpeg.exe. In my application I use API
calls for my application not the exe with parameters.
I have created a API call based test using generated YUV frames and no
thread functionality from my site, which has no decoding functionality
included an show the same result.
The I tried if the problem also occurs using the “EXE” with parameters.
And it exists also with the exe, but only on very fast systems.
ffmpeg -f lavfi -i testsrc2=duration=300:rate=25:size=pal -pix_fmt yuv420p
-c:v libx265 -preset medium -x265-params lossless=1 "w:\testh265.mkv" -b:v
1M >>w:\log.txt 2>&1
If I use fullHD (hd1080) it not occurs.
I’m not able to build FFMpeg by myself. I downloaded the last build from
Zeranoe (today), for the attached tests. The included x265 part is the
same I used for my test before.
Due to the fact, that the complete OS crashes when the error occurs, I was
not able to get a full console log. I add what I have.
To the response (Cigaes), I should talk to the OS vendor if it crashes.
As reported there is a reproducible access valuation of ffmpeg, writing in
memory areas not allocated by ffmpeg or it’s processes. Why is the
following crash a problem of the OS vendor?
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Ticket URL: <https://trac.ffmpeg.org/ticket/7881#comment:4>
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