diff mbox series

[v2,16/23] media: rkvdec: h264: Fix reference frame_num wrap for second field

Message ID 20220331193726.289559-17-nicolas.dufresne@collabora.com (mailing list archive)
State New, archived
Headers show
Series None | expand

Commit Message

Nicolas Dufresne March 31, 2022, 7:37 p.m. UTC 
From: Jonas Karlman <jonas@kwiboo.se>

When decoding the second field in a complementary field pair the second
field is sharing the same frame_num with the first field.

Currently the frame_num for the first field is wrapped when it matches the
field being decoded, this cause issues to decode the second field in a
complementary field pair.

Fix this by using inclusive comparison, less than or equal.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Ezequiel Garcia April 2, 2022, 11:33 a.m. UTC | #1 
Hi Nicolas,

On Thu, Mar 31, 2022 at 03:37:18PM -0400, Nicolas Dufresne wrote:
> From: Jonas Karlman <jonas@kwiboo.se>
> 
> When decoding the second field in a complementary field pair the second
> field is sharing the same frame_num with the first field.
> 
> Currently the frame_num for the first field is wrapped when it matches the
> field being decoded, this cause issues to decode the second field in a
> complementary field pair.
> 
> Fix this by using inclusive comparison, less than or equal.
> 
> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
> Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>

To complete the Signed-off-by chain, can you add your Signed-off-by: at
the bottom?

Thanks,
Ezequiel

> ---
>  drivers/staging/media/rkvdec/rkvdec-h264.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
> index a42cf19bcc6d..730f8ebf7f58 100644
> --- a/drivers/staging/media/rkvdec/rkvdec-h264.c
> +++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
> @@ -773,7 +773,7 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
>  			continue;
>  
>  		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM ||
> -		    dpb[i].frame_num < dec_params->frame_num) {
> +		    dpb[i].frame_num <= dec_params->frame_num) {
>  			p[i] = dpb[i].frame_num;
>  			continue;
>  		}
> -- 
> 2.34.1
>
diff mbox series

Patch

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index a42cf19bcc6d..730f8ebf7f58 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -773,7 +773,7 @@  static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 			continue;
 
 		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM ||
-		    dpb[i].frame_num < dec_params->frame_num) {
+		    dpb[i].frame_num <= dec_params->frame_num) {
 			p[i] = dpb[i].frame_num;
 			continue;
 		}