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[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: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Philipp Zabel 2014-07-11 06:36:28 -03:00 committed by Mauro Carvalho Chehab
parent de23b1db65
commit f38f79d5fd
1 changed files with 8 additions and 1 deletions
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9
drivers/media/platform/coda.c
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@ -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)",