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Commit f8600689 authored by panpan liu's avatar panpan liu Committed by Mauro Carvalho Chehab
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[media] s5p-mfc: limit the size of the CPB 



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

Signed-off-by: default avatarpanpan liu <panpan1.liu@samsung.com>
Signed-off-by: default avatarKamil Debski <k.debski@samsung.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent b313bcc9

drivers/media/platform/s5p-mfc/s5p_mfc_dec.c

+6 −3
Original line number Diff line number Diff line
@@ -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;