From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4DA87C46477 for ; Fri, 14 Jun 2019 14:39:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 300642173C for ; Fri, 14 Jun 2019 14:39:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728798AbfFNOjj (ORCPT ); Fri, 14 Jun 2019 10:39:39 -0400 Received: from relay10.mail.gandi.net ([217.70.178.230]:52293 "EHLO relay10.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728625AbfFNOje (ORCPT ); Fri, 14 Jun 2019 10:39:34 -0400 Received: from localhost.localdomain (aaubervilliers-681-1-81-150.w90-88.abo.wanadoo.fr [90.88.23.150]) (Authenticated sender: paul.kocialkowski@bootlin.com) by relay10.mail.gandi.net (Postfix) with ESMTPSA id 2C5A0240014; Fri, 14 Jun 2019 14:39:29 +0000 (UTC) From: Paul Kocialkowski To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@googlegroups.com Cc: Mauro Carvalho Chehab , Maxime Ripard , Paul Kocialkowski , Greg Kroah-Hartman , Chen-Yu Tsai , Thomas Petazzoni , Hans Verkuil , Ezequiel Garcia , Tomasz Figa , Alexandre Courbot , Nicolas Dufresne , Boris Brezillon , Jernej Skrabec , Jonas Karlman Subject: [PATCH v6 4/5] media: pixfmt: Document the HEVC slice pixel format Date: Fri, 14 Jun 2019 16:38:36 +0200 Message-Id: <20190614143837.15605-5-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190614143837.15605-1-paul.kocialkowski@bootlin.com> References: <20190614143837.15605-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Document the current state of the HEVC slice pixel format. The format will need to evolve in the future, which is why it is not part of the public API. Signed-off-by: Paul Kocialkowski --- .../media/uapi/v4l/pixfmt-compressed.rst | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/Documentation/media/uapi/v4l/pixfmt-compressed.rst b/Documentation/media/uapi/v4l/pixfmt-compressed.rst index 4b701fc7653e..fbe1b42c20f1 100644 --- a/Documentation/media/uapi/v4l/pixfmt-compressed.rst +++ b/Documentation/media/uapi/v4l/pixfmt-compressed.rst @@ -143,6 +143,27 @@ Compressed Formats - ``V4L2_PIX_FMT_HEVC`` - 'HEVC' - HEVC/H.265 video elementary stream. + * .. _V4L2-PIX-FMT-HEVC-SLICE: + + - ``V4L2_PIX_FMT_HEVC_SLICE`` + - 'S265' + - HEVC parsed slice data, as extracted from the HEVC bitstream. + This format is adapted for stateless video decoders that implement a + HEVC pipeline (using the :ref:`mem2mem` and :ref:`media-request-api`). + Metadata associated with the frame to decode is required to be passed + through the following controls : + * ``V4L2_CID_MPEG_VIDEO_HEVC_SPS`` + * ``V4L2_CID_MPEG_VIDEO_HEVC_PPS`` + * ``V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS`` + See the :ref:`associated Codec Control IDs `. + Buffers associated with this pixel format must contain the appropriate + number of macroblocks to decode a full corresponding frame. + + .. note:: + + This format is not yet part of the public kernel API and it + is expected to change. + * .. _V4L2-PIX-FMT-FWHT: - ``V4L2_PIX_FMT_FWHT`` -- 2.21.0