Merge "msm: vidc: Limit the session QP for HEVC encoder" (d62ced20) · Commits · e / devices / android_kernel_sony_msm8994

drivers/media/platform/msm/vidc/msm_venc.c

+29 −0

Original line number	Diff line number	Diff line
		@@ -3239,6 +3239,8 @@ int msm_venc_s_fmt(struct msm_vidc_inst inst, struct v4l2_format f)

		if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
		struct hal_frame_size frame_sz = {0};
		struct hal_quantization_range qp_range;
		void *pdata = NULL;

		rc = msm_comm_try_state(inst, MSM_VIDC_OPEN_DONE);
		if (rc) {
		@@ -3257,6 +3259,33 @@ int msm_venc_s_fmt(struct msm_vidc_inst inst, struct v4l2_format f)
		"Failed to set OUTPUT framesize\n");
		goto exit;
		}

		if (inst->fmts[CAPTURE_PORT]->fourcc == V4L2_PIX_FMT_HEVC) {

		/*
		* Currently Venus HW has a limitation on minimum
		* value of QP for HEVC encoder. Hence restricting
		* the QP in the range of 2 - 51. This workaround
		* will be removed once FW able to handle the full
		* QP range.
		*/

		qp_range.layer_id = 0;
		qp_range.max_qp = 51;
		qp_range.min_qp = 2;

		pdata = &qp_range;

		rc = call_hfi_op(hdev, session_set_property,
		(void *)inst->session,
		HAL_PARAM_VENC_SESSION_QP_RANGE, pdata);
		if (rc) {
		dprintk(VIDC_ERR,
		"Failed to set QP range\n");
		goto exit;
		}
		}

		} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
		struct hal_buffer_requirements *bufreq = NULL;
		int extra_idx = 0;