linux-kernel - [PATCH v2 0/4] Add V4L2_PIX_FMT_MT21C format for MT8173 codec driver

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Date:   Fri, 9 Sep 2016 23:48:03 +0800
From:   Tiffany Lin <tiffany.lin@...iatek.com>
To:     Hans Verkuil <hans.verkuil@...co.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@....samsung.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Daniel Kurtz <djkurtz@...omium.org>,
        Pawel Osciak <posciak@...omium.org>
CC:     Eddie Huang <eddie.huang@...iatek.com>,
        Yingjoe Chen <yingjoe.chen@...iatek.com>,
        <linux-kernel@...r.kernel.org>, <linux-media@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <Tiffany.lin@...iatek.com>,
        Tiffany Lin <tiffany.lin@...iatek.com>
Subject: [PATCH v2 0/4] Add V4L2_PIX_FMT_MT21C format for MT8173 codec driver 

This patch series add Mediatek compressed block format V4L2_PIX_FMT_MT21C,
the decoder driver will decoded bitstream to V4L2_PIX_FMT_MT21C format.

User space applications could use MT8173 MDP driver to convert V4L2_PIX_FMT_MT21C
to V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M and V4L2_PIX_FMT_YVU420.
MDP driver[1] is stand alone driver.

Usage:
MT21C -> MT8173 MDP -> NV12M/YUV420M/YVU420 NV12M/NV21M/YUV420M/YVU420M -> mt8173 Encoder -> H264/VP8
H264/VP8/VP9 -> mtk8173 Decoder -> MT21C

When encode with MT21 source, the pipeline will be:
MT21C -> MDP driver-> NV12M/NV21M/YUV420M/YVU420M -> Encoder -> H264/VP8

When playback, the pipeline will be:
H264/VP8/VP9 -> Decoder driver -> MT21C -> MDP Driver -> DRM

[1]https://patchwork.kernel.org/patch/9305329/

---
v2: add more information for MT21C in docs-rst
---


Tiffany Lin (4):
  v4l: add Mediatek compressed video block format
  docs-rst: Add compressed video formats used on MT8173 codec driver
  vcodec: mediatek: Add V4L2_PIX_FMT_MT21C support for v4l2 decoder
  arm64: dts: mediatek: Add Video Decoder for MT8173

 Documentation/media/uapi/v4l/pixfmt-reserved.rst   |   10 +++++
 arch/arm64/boot/dts/mediatek/mt8173.dtsi           |   44 ++++++++++++++++++++
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c |    7 +++-
 drivers/media/v4l2-core/v4l2-ioctl.c               |    1 +
 include/uapi/linux/videodev2.h                     |    1 +
 5 files changed, 62 insertions(+), 1 deletion(-)

-- 
1.7.9.5