H264 entropy mode can be selected via V4L2 API but is eventually not
applied. Configure encoder with selected mode, CALVC (def) or CABAC.
Note that hw/firmware also expects a CABAC model configuration which
currently doesn't have existing V4L2 API control. For now, use model_0
which seems always supported and so the default one.
Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
---
drivers/media/platform/qcom/venus/venc.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
index 6f123a3..d5d824e 100644
--- a/drivers/media/platform/qcom/venus/venc.c
+++ b/drivers/media/platform/qcom/venus/venc.c
@@ -641,6 +641,7 @@ static int venc_set_properties(struct venus_inst *inst)
if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264) {
struct hfi_h264_vui_timing_info info;
+ struct hfi_h264_entropy_control entropy;
ptype = HFI_PROPERTY_PARAM_VENC_H264_VUI_TIMING_INFO;
info.enable = 1;
@@ -650,6 +651,16 @@ static int venc_set_properties(struct venus_inst *inst)
ret = hfi_session_set_property(inst, ptype, &info);
if (ret)
return ret;
+
+ ptype = HFI_PROPERTY_PARAM_VENC_H264_ENTROPY_CONTROL;
+ entropy.entropy_mode = venc_v4l2_to_hfi(
+ V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE,
+ ctr->h264_entropy_mode);
+ entropy.cabac_model = HFI_H264_CABAC_MODEL_0;
+
+ ret = hfi_session_set_property(inst, ptype, &entropy);
+ if (ret)
+ return ret;
}
ptype = HFI_PROPERTY_CONFIG_VENC_IDR_PERIOD;
--
2.7.4
