Hi Tiffany, On 09/07/2016 08:56 AM, Tiffany Lin wrote: > 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/ > > 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 | 6 +++ > 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, 58 insertions(+), 1 deletion(-) > So basically the video decoder is useless without support for this format and without the MDP driver, right? I'm wondering if I should hold off on merging the decoder driver until these two are in. What is the timeline for v6 of the MDP driver? If a v6 is posted early next week, then I have time to review and (assuming it is OK) I can make a pull request for both this driver and the MDP driver. If it takes longer, then there is a good chance that it will slip to 4.10. I will have very little time in the period September 20 - October 14. Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
