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(parent: 1c3ec30) | patch
media: v4l: add I / P frame min max QP definitions
authorFish Lin <linfish@google.com>
Fri, 29 Mar 2019 03:20:46 +0000 (23:20 -0400)
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>
Mon, 22 Apr 2019 14:25:36 +0000 (10:25 -0400)
commit87effaae9e90474546d441b9123bca824e670a0b
treea31c6bc888cab7395bb61e8288db27a2d8f2d1a4tree | snapshot
parent1c3ec30bb23023d738b538e64ac3028902d53692commit | diff
media: v4l: add I / P frame min max QP definitions

Add following V4L2 QP parameters for H.264:
* V4L2_CID_MPEG_VIDEO_H264_I_FRAME_MIN_QP
* V4L2_CID_MPEG_VIDEO_H264_I_FRAME_MAX_QP
* V4L2_CID_MPEG_VIDEO_H264_P_FRAME_MIN_QP
* V4L2_CID_MPEG_VIDEO_H264_P_FRAME_MAX_QP

These controls will limit QP range for intra and inter frame,
provide more manual control to improve video encode quality.

Signed-off-by: Fish Lin <linfish@google.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Documentation/media/uapi/v4l/ext-ctrls-codec.rst diff | blob | history
drivers/media/v4l2-core/v4l2-ctrls.c diff | blob | history
include/uapi/linux/v4l2-controls.h diff | blob | history
Domain: System / Kernel;