From f38f79d5fd21ab7585c9bff21afeaa6eb9285ff2 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Fri, 11 Jul 2014 06:36:28 -0300 Subject: [PATCH] [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 Signed-off-by: Kamil Debski Signed-off-by: Mauro Carvalho Chehab --- 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 e675cd717bd3..43349d94c93e 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; @@ -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)", -- 2.39.5