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[media] s5p-mfc: limit the size of the CPB

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The CPB size is limited by the hardware. Add this limit to the s_fmt.

Signed-off-by: panpan liu <panpan1.liu@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
panpan liu 2014-07-15 22:51:33 -03:00 committed by Mauro Carvalho Chehab
parent b313bcc9a4
commit f8600689de
1 changed files with 6 additions and 3 deletions
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9
drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
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@ -436,6 +436,7 @@ static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
int ret = 0;
struct v4l2_pix_format_mplane *pix_mp;
struct s5p_mfc_buf_size *buf_size = dev->variant->buf_size;
mfc_debug_enter();
ret = vidioc_try_fmt(file, priv, f);
@ -459,11 +460,13 @@ static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
mfc_debug(2, "The codec number is: %d\n", ctx->codec_mode);
pix_mp->height = 0;
pix_mp->width = 0;
if (pix_mp->plane_fmt[0].sizeimage)
ctx->dec_src_buf_size = pix_mp->plane_fmt[0].sizeimage;
else
if (pix_mp->plane_fmt[0].sizeimage == 0)
pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size =
DEF_CPB_SIZE;
else if (pix_mp->plane_fmt[0].sizeimage > buf_size->cpb)
ctx->dec_src_buf_size = buf_size->cpb;
else
ctx->dec_src_buf_size = pix_mp->plane_fmt[0].sizeimage;
pix_mp->plane_fmt[0].bytesperline = 0;
ctx->state = MFCINST_INIT;
ret = 0;