[Libav-user] Format requires hwaccel initialisation

[Philippe Noël]

>
> This isn't an error - it's a debug message noting that the decoder needs
> some system-specific initialisation to use the hardware, which is true (<
> http://git.videolan.org/?p=ffmpeg.git;a=blob;f=libavcodec/decode.c;h=03b9da25f9fd9932ae6b29d65dd76d67a105098c;hb=HEAD#l1482
> >).
> Whatever is going wrong must be somewhere after that.


Oh I see. I do get a decode status of 1, see below:

> nal_unit_type: 7(SPS), nal_ref_idc: 3
> Error found
> nal_unit_type: 8(PPS), nal_ref_idc: 3
> Error found
> nal_unit_type: 6(SEI), nal_ref_idc: 0
> Error found
> nal_unit_type: 6(SEI), nal_ref_idc: 0
> Error found
> nal_unit_type: 5(IDR), nal_ref_idc: 3
> Error found
> ct_type:0 pic_struct:0
> Decode status 1
> Error found
> bad src image pointers


But then I get a bad src image pointers. Do you think the decode is really
successful and it's a problem with the parameters?

Cheers,

Philippe


On Sun, Feb 9, 2020 at 11:44 AM Mark Thompson <sw at jkqxz.net> wrote:

> On 08/02/2020 22:51, Philippe Noël wrote:
> > Hello,
> >
> > I'm trying to do the vaapi/d3d11va/videotoolbox hardware accel for
> AV_CODEC_ID_H264. I'm following the libav example, but when I init it gives
> me "requires waccel initialisation" although I am creating the hw device w/
> av_hwdevice_ctx_create. What am I missing?
> >
> > Format videotoolbox_vld chosen by get_format().
> >
> > Error found
> >
> > Format videotoolbox_vld requires hwaccel initialisation.
>
> This isn't an error - it's a debug message noting that the decoder needs
> some system-specific initialisation to use the hardware, which is true (<
> http://git.videolan.org/?p=ffmpeg.git;a=blob;f=libavcodec/decode.c;h=03b9da25f9fd9932ae6b29d65dd76d67a105098c;hb=HEAD#l1482
> >).
>
> Whatever is going wrong must be somewhere after that.
>
> - Mark
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