Allow to set a fixed quantization parameter offset between luma and
chroma in the h.264 encoder.
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
---
drivers/media/platform/coda/coda-bit.c | 4 +++-
drivers/media/platform/coda/coda-common.c | 5 +++++
drivers/media/platform/coda/coda.h | 1 +
3 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c
index 5e5accc3ae62..5ec70ab9f1b2 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -1012,7 +1012,9 @@ static int coda_start_encoding(struct coda_ctx *ctx)
CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK) <<
CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET) |
(!!ctx->params.h264_constrained_intra_pred_flag <<
- CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_OFFSET);
+ CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_OFFSET) |
+ (ctx->params.h264_chroma_qp_index_offset &
+ CODA_264PARAM_CHROMAQPOFFSET_MASK);
coda_write(dev, value, CODA_CMD_ENC_SEQ_264_PARA);
break;
case V4L2_PIX_FMT_JPEG:
diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index f6c9273805bb..390d1ce6ab32 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -1842,6 +1842,9 @@ static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
case V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION:
ctx->params.h264_constrained_intra_pred_flag = ctrl->val;
break;
+ case V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET:
+ ctx->params.h264_chroma_qp_index_offset = ctrl->val;
+ break;
case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
/* TODO: switch between baseline and constrained baseline */
if (ctx->inst_type == CODA_INST_ENCODER)
@@ -1931,6 +1934,8 @@ static void coda_encode_ctrls(struct coda_ctx *ctx)
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION, 0, 1, 1,
0);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET, -12, 12, 1, 0);
v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_H264_PROFILE,
V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE, 0x0,
diff --git a/drivers/media/platform/coda/coda.h b/drivers/media/platform/coda/coda.h
index f3d0cff4ef3a..31c80bda2c0b 100644
--- a/drivers/media/platform/coda/coda.h
+++ b/drivers/media/platform/coda/coda.h
@@ -119,6 +119,7 @@ struct coda_params {
s8 h264_slice_alpha_c0_offset_div2;
s8 h264_slice_beta_offset_div2;
bool h264_constrained_intra_pred_flag;
+ s8 h264_chroma_qp_index_offset;
u8 h264_profile_idc;
u8 h264_level_idc;
u8 mpeg4_intra_qp;
--
2.20.1
