[FFmpeg-user] vaapi: Impossible to convert between the formats

Carl Eugen Hoyos ceffmpeg at gmail.com
Sun Jun 17 20:24:26 EEST 2018

2018-06-13 13:26 GMT+02:00, André Hänsel <andre at webkr.de>:
>> > How should I go about debugging this further?
>> First step is to provide the command line you tested together
>> with the complete, uncut console output.
>> Carl Eugen
> See below for another console output, this time with loglevel "trace".
> I noticed this line:
> [mpeg4 @ 0x555f040fe2e0] Codec mpeg4 profile 0 not supported for hardware
> decode.
> So it seems it falls back silently to software decoding, so I need an
> hwupload filter?
> Here's the trace output:
> # ffmpeg -loglevel trace -hwaccel vaapi -vaapi_device /dev/dri/renderD128
> -hwaccel_output_format vaapi -i test.avi -c:v h264_vaapi out.mp4
> ffmpeg version 3.3.1-1~16.04.york0

I hoped that one of the vaapi developers would comment but in
any case, you should test current FFmpeg git head, many changes
(including to vaapi) have been made in the last year.

Carl Eugen

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