From da2b3b3e115d2793b5475039ca4d7f364135fcf4 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Fri, 10 Jul 2015 10:37:52 -0300 Subject: [PATCH] [media] coda: implement VBV delay and buffer size controls The encoder allows to specify the VBV model reference decoder's initial delay and buffer size. Export the corresponding V4L2 controls. Signed-off-by: Philipp Zabel Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/coda/coda-bit.c | 5 ++++- drivers/media/platform/coda/coda-common.c | 14 ++++++++++++++ drivers/media/platform/coda/coda.h | 2 ++ 3 files changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c index bcb9911..b14affc 100644 --- a/drivers/media/platform/coda/coda-bit.c +++ b/drivers/media/platform/coda/coda-bit.c @@ -922,6 +922,9 @@ static int coda_start_encoding(struct coda_ctx *ctx) value = (ctx->params.bitrate & CODA_RATECONTROL_BITRATE_MASK) << CODA_RATECONTROL_BITRATE_OFFSET; value |= 1 & CODA_RATECONTROL_ENABLE_MASK; + value |= (ctx->params.vbv_delay & + CODA_RATECONTROL_INITIALDELAY_MASK) + << CODA_RATECONTROL_INITIALDELAY_OFFSET; if (dev->devtype->product == CODA_960) value |= BIT(31); /* disable autoskip */ } else { @@ -929,7 +932,7 @@ 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, ctx->params.vbv_size, CODA_CMD_ENC_SEQ_RC_BUF_SIZE); coda_write(dev, ctx->params.intra_refresh, CODA_CMD_ENC_SEQ_INTRA_REFRESH); diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c index 367b6ba..24737f1 100644 --- a/drivers/media/platform/coda/coda-common.c +++ b/drivers/media/platform/coda/coda-common.c @@ -1400,6 +1400,12 @@ static int coda_s_ctrl(struct v4l2_ctrl *ctrl) case V4L2_CID_JPEG_RESTART_INTERVAL: ctx->params.jpeg_restart_interval = ctrl->val; break; + case V4L2_CID_MPEG_VIDEO_VBV_DELAY: + ctx->params.vbv_delay = ctrl->val; + break; + case V4L2_CID_MPEG_VIDEO_VBV_SIZE: + ctx->params.vbv_size = min(ctrl->val * 8192, 0x7fffffff); + break; default: v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "Invalid control, id=%d, val=%d\n", @@ -1459,6 +1465,14 @@ static void coda_encode_ctrls(struct coda_ctx *ctx) v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0, 1920 * 1088 / 256, 1, 0); + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, + V4L2_CID_MPEG_VIDEO_VBV_DELAY, 0, 0x7fff, 1, 0); + /* + * The maximum VBV size value is 0x7fffffff bits, + * one bit less than 262144 KiB + */ + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, + V4L2_CID_MPEG_VIDEO_VBV_SIZE, 0, 262144, 1, 0); } static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx) diff --git a/drivers/media/platform/coda/coda.h b/drivers/media/platform/coda/coda.h index a3d70cc..26c9c4b 100644 --- a/drivers/media/platform/coda/coda.h +++ b/drivers/media/platform/coda/coda.h @@ -128,6 +128,8 @@ struct coda_params { enum v4l2_mpeg_video_multi_slice_mode slice_mode; u32 framerate; u16 bitrate; + u16 vbv_delay; + u32 vbv_size; u32 slice_max_bits; u32 slice_max_mb; }; -- 2.7.4