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authorFish Lin <linfish@google.com>2019-03-29 06:20:46 +0300
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-04-22 17:25:36 +0300
commit87effaae9e90474546d441b9123bca824e670a0b (patch)
treea31c6bc888cab7395bb61e8288db27a2d8f2d1a4 /include/uapi/linux/v4l2-controls.h
parent1c3ec30bb23023d738b538e64ac3028902d53692 (diff)
downloadlinux-87effaae9e90474546d441b9123bca824e670a0b.tar.xz
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>
Diffstat (limited to 'include/uapi/linux/v4l2-controls.h')
-rw-r--r--include/uapi/linux/v4l2-controls.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 78816ec88751..37807f23231e 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -539,6 +539,10 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type {
#define V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER_QP (V4L2_CID_MPEG_BASE+382)
#define V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION (V4L2_CID_MPEG_BASE+383)
#define V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET (V4L2_CID_MPEG_BASE+384)
+#define V4L2_CID_MPEG_VIDEO_H264_I_FRAME_MIN_QP (V4L2_CID_MPEG_BASE+385)
+#define V4L2_CID_MPEG_VIDEO_H264_I_FRAME_MAX_QP (V4L2_CID_MPEG_BASE+386)
+#define V4L2_CID_MPEG_VIDEO_H264_P_FRAME_MIN_QP (V4L2_CID_MPEG_BASE+387)
+#define V4L2_CID_MPEG_VIDEO_H264_P_FRAME_MAX_QP (V4L2_CID_MPEG_BASE+388)
#define V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP (V4L2_CID_MPEG_BASE+400)
#define V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP (V4L2_CID_MPEG_BASE+401)
#define V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP (V4L2_CID_MPEG_BASE+402)