[FFmpeg-devel] [PATCH 4/4] lavc/vvc/refs: Use dpb_max_num_reorder_pics to control output

From: Jun Zhao <mypopy@gmail.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Jun Zhao <barryjzhao@tencent.com>,
	elinyhuang <elinyhuang@tencent.com>,
	Jun Zhao <mypopydev@gmail.com>
Subject: [FFmpeg-devel] [PATCH 4/4] lavc/vvc/refs: Use dpb_max_num_reorder_pics to control output
Date: Fri, 19 Apr 2024 21:47:11 +0800
Message-ID: <20240419134711.3824735-4-mypopy@gmail.com> (raw)
In-Reply-To: <20240419134711.3824735-1-mypopy@gmail.com>

From: Jun Zhao <mypopydev@gmail.com>

Use dpb_max_num_reorder_pics to control output instead of
dpb_max_dec_pic_buffering, when dpb_max_dec_pic_buffering
is much larger than dpb_max_num_reorder_pics, it may cause
dpb overflow error.

Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
Signed-off-by: elinyhuang <elinyhuang@tencent.com>
---
 libavcodec/vvc/refs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/vvc/refs.c b/libavcodec/vvc/refs.c
index a5ee7338d6..6694bc4c51 100644
--- a/libavcodec/vvc/refs.c
+++ b/libavcodec/vvc/refs.c
@@ -226,7 +226,7 @@ int ff_vvc_output_frame(VVCContext *s, VVCFrameContext *fc, AVFrame *out, const
 
         /* wait for more frames before output */
         if (!flush && s->seq_output == s->seq_decode && sps &&
-            nb_output <= sps->r->sps_dpb_params.dpb_max_dec_pic_buffering_minus1[sps->r->sps_max_sublayers_minus1] + 1)
+            nb_output <= sps->r->sps_dpb_params.dpb_max_num_reorder_pics[sps->r->sps_max_sublayers_minus1])
             return 0;
 
         if (nb_output) {
-- 
2.25.1

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