[FFmpeg-trac] #9351(undetermined:open): bug in several windows builds when reencoding h.264 to h.265 with GPU
FFmpeg
trac at avcodec.org
Tue Aug 3 23:23:17 EEST 2021
#9351: bug in several windows builds when reencoding h.264 to h.265 with GPU
-------------------------------------+-------------------------------------
Reporter: John Dury | Owner: Timo R.
Type: defect | Status: open
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution:
Keywords: ffmpeg gpu | Blocked By:
buffer |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Timo R.):
There is unfortunately no way to automatically increase the number of
allocated hw frames when somewhere down the chain something needs a higher
buffer.
That information is simply not available anywhere for the decoder.
I have no idea why the driver fails with that specific error though, and I
don't think this is fixable in ffmpeg, but rather is some kind of weird
behaviour of the nvidia driver.
If in doubt, throw a scale_cuda=passthrough=0 filter into the chain to
take pressure of the decoder surface pool, at the expensive of more VRAM
usage.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9351#comment:29>
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