[FFmpeg-devel] [PATCH] ffmpeg: remove superfluous custom cuvid hwaccel

[James Almer]

On 3/3/2020 5:14 PM, Timo Rothenpieler wrote:
> On 03.03.2020 18:00, James Almer wrote:
>> It's apparently not working, and is a duplicate of the properly
>> implemented
>> nvdec libavcodec hwaccel.
>>
>> Signed-off-by: James Almer <jamrial at gmail.com>
>> ---
>> When i try decoding a sample using -hwaccel cuvid I get
>>
>> [h264 @ 000001ab70730020]
>> decoder->cvdl->cuvidCreateDecoder(&decoder->decoder, params) failed ->
>> CUDA_ERROR_INVALID_VALUE: invalid argument
>> [h264 @ 000001ab70730020] Failed setup for format cuda: hwaccel
>> initialisation returned error
>>
>> That same sample works just fine if i instead use -hwaccel nvdec. And
>> seeing this
>> hwaccel is merely a ffmpeg.c specific implementation using
>> AVHWFramesContext, much
>> like the libavcodec hwaccel, i figured it was best to just remove it
>> and map cuvid
>> to nvdec in order to not break existing cli scripts.
>>
>> The same can probably be done with the VideoToolbox one, but not the
>> QSV as there's
>> no such hwaccel in libavcodec (One should probably be written).
> 
> It should be working fine still, but there's really no reason to keep it.

I get that error on my GTX 1660 on Win10, recent driver and ffnvcodec
headers. Is it working for you?

Will apply, thanks.