[FFmpeg-devel] [PATCH v2 1/2] lavu/hwcontext_qsv: add support for AV_PIX_FMT_VUYX on Linux
Philip Langdale
philipl at overt.org
Tue Sep 6 19:01:34 EEST 2022
On Tue, 6 Sep 2022 12:53:37 +0800
"Xiang, Haihao" <haihao.xiang-at-intel.com at ffmpeg.org> wrote:
> From: Haihao Xiang <haihao.xiang at intel.com>
>
> AV_PIX_FMT_VUYX is used for 8bit 4:4:4 content in FFmpeg VAAPI, so
> AV_PIX_FMT_VUYX should be used for 8bit 4:4:4 content in FFmpeg QSV
> too because QSV is based on VAAPI on Linux. However the SDK only
> declares support for AYUV and does nothing with the alpha, so this
> commit fudged a mapping between AV_PIX_FMT_VUYX and MFX_FOURCC_AYUV.
> ---
> libavutil/hwcontext_qsv.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
> index 510f422562..9fa0dfa1c0 100644
> --- a/libavutil/hwcontext_qsv.c
> +++ b/libavutil/hwcontext_qsv.c
> @@ -119,6 +119,10 @@ static const struct {
> MFX_FOURCC_YUY2 },
> { AV_PIX_FMT_Y210,
> MFX_FOURCC_Y210 },
> + // VUYX is used for VAAPI child device,
> + // the SDK only delares support for AYUV
> + { AV_PIX_FMT_VUYX,
> + MFX_FOURCC_AYUV },
> #endif
> };
>
> @@ -1502,6 +1506,14 @@ static int map_frame_to_surface(const AVFrame
> *frame, mfxFrameSurface1 *surface) surface->Data.U16 = (mfxU16
> *)frame->data[0] + 1; surface->Data.V16 = (mfxU16 *)frame->data[0] +
> 3; break;
> + case AV_PIX_FMT_VUYX:
> + surface->Data.V = frame->data[0];
> + surface->Data.U = frame->data[0] + 1;
> + surface->Data.Y = frame->data[0] + 2;
> + // Only set Data.A to a valid address, the SDK doesn't
> + // use the value from the frame.
> + surface->Data.A = frame->data[0] + 3;
> + break;
> #endif
> default:
> return MFX_ERR_UNSUPPORTED;
Patch series LGTM.
--phil
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