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Commit f38f79d5 authored by Philipp Zabel's avatar Philipp Zabel Committed by Mauro Carvalho Chehab
Browse files

[media] coda: add cyclic intra refresh control 



Allow userspace to enable cyclic intra refresh by setting the number of
intra macroblocks per frame to a non-zero value.

Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: default avatarKamil Debski <k.debski@samsung.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent de23b1db

drivers/media/platform/coda.c

+8 −1
Original line number Diff line number Diff line
@@ -167,6 +167,7 @@ struct coda_params { 
	u8			mpeg4_intra_qp;

	u8			mpeg4_inter_qp;

	u8			gop_size;

	int			intra_refresh;

	int			codec_mode;

	int			codec_mode_aux;

	enum v4l2_mpeg_video_multi_slice_mode slice_mode;
@@ -2379,7 +2380,8 @@ static int coda_start_encoding(struct coda_ctx *ctx) 
	coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_PARA);



	coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_BUF_SIZE);

	coda_write(dev, 0, CODA_CMD_ENC_SEQ_INTRA_REFRESH);

	coda_write(dev, ctx->params.intra_refresh,

		   CODA_CMD_ENC_SEQ_INTRA_REFRESH);



	coda_write(dev, bitstream_buf, CODA_CMD_ENC_SEQ_BB_START);

	coda_write(dev, bitstream_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE);
@@ -2678,6 +2680,9 @@ static int coda_s_ctrl(struct v4l2_ctrl *ctrl) 
		break;

	case V4L2_CID_MPEG_VIDEO_HEADER_MODE:

		break;

	case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:

		ctx->params.intra_refresh = ctrl->val;

		break;

	default:

		v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,

			"Invalid control, id=%d, val=%d\n",
@@ -2739,6 +2744,8 @@ static int coda_ctrls_setup(struct coda_ctx *ctx) 
		V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,

		(1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),

		V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);

	v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,

		V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0, 1920 * 1088 / 256, 1, 0);



	if (ctx->ctrls.error) {

		v4l2_err(&ctx->dev->v4l2_dev, "control initialization error (%d)",