Hi!
Dne petek, 24. maj 2019 ob 11:36:33 CEST je Paul Kocialkowski napisal(a):
> Introduce the V4L2_PIX_FMT_HEVC_SLICE pixel format, which currently
> describes an output buffer with enough appended slice data for
> producing one decoded frame with a stateless video decoder.
>
> This will need to be reworked (along with the controls and the core) to
> allow passing slice data individually, as it is the natural decoding
> unit in HEVC.
>
> We also need to figure out the description of the possible source data:
> * Compressed slice data only, with slice controls attached;
> * Slice data in Annex-B format (with raw slice header), without slice
> controls attached;
> * Slice data in Annex-B format (with raw slice header), with slice
> controls attached.
>
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>
> ---
> include/media/hevc-ctrls.h | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h
> index 9ea013c88afc..2de83d9f6d47 100644
> --- a/include/media/hevc-ctrls.h
> +++ b/include/media/hevc-ctrls.h
> @@ -11,6 +11,9 @@
> #ifndef _HEVC_CTRLS_H_
> #define _HEVC_CTRLS_H_
>
> +/* The pixel format isn't stable at the moment and will likely be renamed.
> */ +#define V4L2_PIX_FMT_HEVC_SLICE v4l2_fourcc('S', '2', '6', '5') /* HEVC
You should add include to cover v4l2_fourcc() macro.
Best regards,
Jernej
> parsed slices */ +
> #define V4L2_CID_MPEG_VIDEO_HEVC_SPS (V4L2_CID_MPEG_BASE +
1008)
> #define V4L2_CID_MPEG_VIDEO_HEVC_PPS (V4L2_CID_MPEG_BASE +
1009)
> #define V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS (V4L2_CID_MPEG_BASE +
1010)
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