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Commit 595d428a authored by Tapas Kumar Kundu's avatar Tapas Kumar Kundu
Browse files

msm: vidc: Introducing CBR_VFR upto 480p@30fps 



Introducing CBR_VFR (CBR = constant bitrate, VFR = variable framerate
) upto 480p@30fps due to tighter bitrate convergence.

Change-Id: I9477761f7f0936a319dc66413a28cddb619ba0cb
Signed-off-by: default avatarTapas Kumar Kundu <tkundu@codeaurora.org>
parent 9ad222c2

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

+4 −2
Original line number Diff line number Diff line
@@ -925,8 +925,10 @@ int msm_vidc_set_internal_config(struct msm_vidc_inst *inst) 
	if ((rc_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR ||

		 rc_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR_VFR) &&

		(codec != V4L2_PIX_FMT_VP8)) {

		if (rc_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR &&

		    mbps < CBR_MB_LIMIT)

		if ((rc_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR &&

		    mbps < CBR_MB_LIMIT) ||

		   (rc_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR_VFR &&

		    mbps < CBR_VFR_MB_LIMIT))

			hrd_buf_size.vbv_hdr_buf_size = 500;

		else

			hrd_buf_size.vbv_hdr_buf_size = 1000;

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

+3 −1
Original line number Diff line number Diff line
@@ -1224,7 +1224,9 @@ int msm_vidc_decide_work_route(struct msm_vidc_inst *inst) 
		if (slice_mode ==

			V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES ||

			(rc_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR &&

			mbps < CBR_MB_LIMIT)) {

			mbps < CBR_MB_LIMIT) ||

			(rc_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR_VFR &&

			mbps < CBR_VFR_MB_LIMIT)) {

			pdata.video_work_route = 1;

			dprintk(VIDC_DBG, "Configured work route = 1");

		}

drivers/media/platform/msm/vidc/msm_vidc_common.h

+2 −1
Original line number Diff line number Diff line
@@ -24,7 +24,8 @@ 
#define DEFAULT_FRAME_QUALITY 80

#define FRAME_QUALITY_STEP 1

#define HEIC_GRID_DIMENSION 512

#define CBR_MB_LIMIT                           (1280*720/256*30)

#define CBR_MB_LIMIT                           (((1280+15)/16)*((720+15)/16)*30)

#define CBR_VFR_MB_LIMIT                       (((640+15)/16)*((480+15)/16)*30)



struct vb2_buf_entry {

	struct list_head list;