Re: [FFmpeg-devel] Encoding with QSV at an API level.

[Paul Knopf]

That was it! Thanks very much!

On Wed, Oct 21, 2015 at 4:38 PM, Hendrik Leppkes 
wrote:

> On Wed, Oct 21, 2015 at 9:42 PM, Paul Knopf 
> wrote:
> > I just realized that I was also getting an error on the stdout.
> >
> > [h264_qsv @ 00c7e6d8e680] Specified pixel format yuv420p is
> > invalid or not supported
> >
>
> Which probably means you also get an error return from one of the
> initialization functions which you didn't check.
> In any case, QSV encoding wants NV12 video, not YUV420P.
>
> - Hendrik
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>



-- 
Thanks!

~Paul
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Re: [FFmpeg-devel] Encoding with QSV at an API level.

[Paul Knopf]

I just realized that I was also getting an error on the stdout.

[h264_qsv @ 00c7e6d8e680] Specified pixel format yuv420p is
invalid or not supported


On Wed, Oct 21, 2015 at 3:13 PM, Paul Knopf 
wrote:

> Hey guys,
>
> Is there an example somewhere, using the "h264_qsv" encoder at an API
> level?
>
> Let's say I have an application that encodes and muxes a file to mp4,
> using libx264. Is it possible to just switch encoders? Will other things
> have to change, like pixel formats?
>
> I switched the encoders just like this.
>
> // old (libx264)
> //AVCodec* codec = avcodec_find_encoder(AV_CODEC_ID_H264);
> // new (Intel Quick Sync)
> AVCodec* codec = avcodec_find_encoder_by_name("h264_qsv");
>
>
> However, when calling avcodec_encode_video2,I get an access violation.
>
> Am I doing this wrong?
>
> I posted by question on StackOverflow as well for better visibility.
>
> http://stackoverflow.com/questions/33267213/ffmpeg-encoding-with-intel-quick-sync-throwing-access-violation-reading-locati
>
> --
> Thanks!
>
> ~Paul
>



-- 
Thanks!

~Paul
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Re: [FFmpeg-devel] Encoding with QSV at an API level.

[Hendrik Leppkes]

On Wed, Oct 21, 2015 at 9:42 PM, Paul Knopf  wrote:
> I just realized that I was also getting an error on the stdout.
>
> [h264_qsv @ 00c7e6d8e680] Specified pixel format yuv420p is
> invalid or not supported
>

Which probably means you also get an error return from one of the
initialization functions which you didn't check.
In any case, QSV encoding wants NV12 video, not YUV420P.

- Hendrik
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