Thread (19 messages) 19 messages, 4 authors, 2022-06-29

Re: [PATCH v2 5/7] media: hantro: postproc: Properly calculate chroma offset

From: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Date: 2022-06-29 19:14:58
Also in: linux-media, linux-rockchip, linux-staging, lkml

Hi Jernej,

On Thu, Jun 16, 2022 at 10:25:11PM +0200, Jernej Skrabec wrote:
Currently chroma offset calculation assumes only 1 byte per luma, with
no consideration for stride.

Take necessary information from destination pixel format which makes
calculation completely universal.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>

Thanks,
Ezequiel
quoted hunk ↗ jump to hunk
---
 drivers/staging/media/hantro/hantro_postproc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/media/hantro/hantro_postproc.c b/drivers/staging/media/hantro/hantro_postproc.c
index 8933b4af73ed..a0928c508434 100644
--- a/drivers/staging/media/hantro/hantro_postproc.c
+++ b/drivers/staging/media/hantro/hantro_postproc.c
@@ -113,12 +113,14 @@ static void hantro_postproc_g2_enable(struct hantro_ctx *ctx)
 {
 	struct hantro_dev *vpu = ctx->dev;
 	struct vb2_v4l2_buffer *dst_buf;
-	size_t chroma_offset = ctx->dst_fmt.width * ctx->dst_fmt.height;
 	int down_scale = down_scale_factor(ctx);
+	size_t chroma_offset;
 	dma_addr_t dst_dma;
 
 	dst_buf = hantro_get_dst_buf(ctx);
 	dst_dma = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
+	chroma_offset = ctx->dst_fmt.plane_fmt[0].bytesperline *
+			ctx->dst_fmt.height;
 
 	if (down_scale) {
 		hantro_reg_write(vpu, &g2_down_scale_e, 1);
-- 
2.36.1
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