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.za...@pengutronix.de>
---
drivers/media/platform/coda.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 839aa36..2e94d95 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -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;
@@ -2381,7 +2382,8 @@ 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);
@@ -2680,6 +2682,9 @@ 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",
@@ -2741,6 +2746,8 @@ 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)",
--
2.0.0
--
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