[FFmpeg-user] hevc_vaapi mkv output fails with generic error

[Andreas Löer]

Hi Haihao,

The question is why this is not possible at all since it was possible
already on an older system.
I kinda don't understand where these warnings come from ... maybe the
amdgpu Kernel driver?

Anyway ... encoding with libx265 is possible but for my purpose far to
slow even with all cores.

Best regards,
Andreas


Am 11.07.2020 um 15:43 schrieb Xiang, Haihao:
> According to the your debug output below, the encoded stream is not muxable to
> some containers, maybe this the root cause of your issue.
>
> [hevc_vaapi @ 0x5239bc0] Driver does not support some wanted packed headers
> (wanted 0xd, found 0).
> [hevc_vaapi @ 0x5239bc0] Driver does not support packed sequence headers, but a
> global header is requested.
> [hevc_vaapi @ 0x5239bc0] No global header will be written: this may result in a
> stream which is not usable for some purposes (e.g. not muxable to some
> containers).
>
> Thanks
> Haihao
>
>> Hello everyone,
>>
>> I am currently unable to transcode H264 MKV to HEVC MKV on an AMD Ryzen
>> 3400G running openSuSE Leap 15.2.
>>
>> Using following command
>>
>> ffmpeg -loglevel debug -vaapi_device /dev/dri/renderD128 -hwaccel vaapi
>> -hwaccel_output_format vaapi -i sample.mkv -c:v hevc_vaapi -vf
>> 'hwdownload,format=nv12,hwupload' -rc_mode 3 -b:v 3M -profile:v 1 -tier
>> 1 -level 153 -c:a copy output.mkv
>>
>> I am getting follwing error message
>>
>> [AVHWFramesContext @ 0x52a3cc0] Created surface 0x22.
>> [AVHWFramesContext @ 0x52a3cc0] Direct mapping disabled: deriving image
>> does not work: 1 (operation failed).
>> [matroska @ 0x5235ec0] get_metadata_duration returned: 0
>> Could not write header for output file #0 (incorrect codec parameters
>> ?): Invalid data found when processing input
>> Error initializing output stream 0:0 --
>> [AVIOContext @ 0x5209740] Statistics: 0 seeks, 1 writeouts
>> [AVIOContext @ 0x5284400] Statistics: 197393 bytes read, 2 seeks
>>
>> FFmpeg static build by myself.
>>
>> Is there anyone who can help me understanding what is going on here and
>> how to get this working?
>> I am breaking my head for 3 days now trying to solve this issue.
>>
>> Full debug output here: https://pastebin.com/khp5g9F5
>> <
>> https://deref-web.de/mail/client/gxpESspRx9g/dereferrer/?redirectUrl=https%3A%2F%2Fpastebin.com%2Fkhp5g9F5
>>
>> Best regards,
>> Andreas
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