[FFmpeg-devel] why ffmpeg not work

[Dennis Mungai]

On Wed, 8 Apr 2020 at 11:41, 陈军 <cooker.chen at v.photos> wrote:

> Hi :
>     when i use this command
>     ffmpeg -hwaccel cuda -hwaccel_output_format cuda -extra_hw_frames 2
> -threads 2 -i 333_111017.JPG -pix_fmt yuv420p -f hevc 1.h265 -y
>    but  i get this error:
>    Impossible to convert between the formats supported by the filter
> 'Parsed_null_0' and the filter 'auto_scaler_0'
>    Error reinitializing filters!
>    Failed to inject frame into filter network: Function not implemented
>    Error while processing the decoded data for stream #0:0
>    How can i get correct result;
>    Thanks
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This should do:

ffmpeg -hwaccel cuda -hwaccel_output_format cuda -extra_hw_frames 3
-threads 1 -i 333_111017.JPG  -f hevc 1.h265 -y

Test and report back.