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Date: Sat, 25 May 2019 14:51:34 +0200 From: Jernej Škrabec <jernej.skrabec@...l.net> To: Paul Kocialkowski <paul.kocialkowski@...tlin.com> Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org, linux-arm-kernel@...ts.infradead.org, linux-sunxi@...glegroups.com, Mauro Carvalho Chehab <mchehab@...nel.org>, Maxime Ripard <maxime.ripard@...tlin.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Chen-Yu Tsai <wens@...e.org>, Hans Verkuil <hverkuil@...all.nl>, Ezequiel Garcia <ezequiel@...labora.com>, Tomasz Figa <tfiga@...omium.org>, Alexandre Courbot <acourbot@...omium.org>, Nicolas Dufresne <nicolas@...fresne.ca>, Boris Brezillon <boris.brezillon@...labora.com>, Thomas Petazzoni <thomas.petazzoni@...tlin.com> Subject: Re: [PATCH v5 2/4] media: pixfmt: Add HEVC slice pixel format 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@...tlin.com> > --- > 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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