#9165: "Lossless encoding not supported" error occurs using NVIDIA Video Codec
SDK
10.0
-------------------------------------+-------------------------------------
Reporter: bombur33 | Owner:
Type: defect | Status: open
Priority: normal | Component:
| undetermined
Version: git-master | Resolution:
Keywords: lossless | Blocked By:
nvenc h264 |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by Balling):
* status: new => open
Comment:
Replying to [comment:1 bombur33]:
> I should mention, the problem occurs when using the new p1-p7 presets
added in SDK 10 on GPUs that don't support lossless. I've run the same
test successfully on a newer NVIDIA GPU that supports lossless.
Well, obviously. So the patch is just to add < PRESET_P1 and maybe the
same about ctx->tuning_info in #ifdef NVENC_HAVE_NEW_PARAMETERS.
But yeah, that is because ret will be < 0!
To oromit: I tested it on 2080 Ti it works great there because lossless is
supported and we just do not return. So I checked with his command... It
is not lossless... While -tune:v lossless will be lossless...
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Ticket URL: <https://trac.ffmpeg.org/ticket/9165#comment:2>
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