From: llyyr <llyyr.public@gmail.com>
To: ffmpeg-devel@ffmpeg.org
Cc: llyyr <llyyr.public@gmail.com>
Subject: [FFmpeg-devel] [PATCH v2 1/2] hevc_ps: fix cpb_cnt_minus1 initialization
Date: Sun, 10 Sep 2023 20:55:22 +0530
Message-ID: <20230910152522.27429-2-llyyr.public@gmail.com> (raw)
Fixes: fc429d785e9e24c5520ce716d4bc3b5547e581eb
cpb_cnt used to be initialized to 1 before
fc429d785e9e24c5520ce716d4bc3b5547e581eb so cpb_cnt_minus1 should be
initialized to 0.
Also add +1 to the decode_sublayer_hrd call to account for the change to
the offset
---
libavcodec/hevc_ps.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c
index bdd623507d..ac3fe55b07 100644
--- a/libavcodec/hevc_ps.c
+++ b/libavcodec/hevc_ps.c
@@ -406,8 +406,6 @@ static int decode_hrd(GetBitContext *gb, int common_inf_present,
for (int i = 0; i < max_sublayers; i++) {
hdr->flags.fixed_pic_rate_general_flag = get_bits1(gb);
- hdr->cpb_cnt_minus1[i] = 1;
-
if (!hdr->flags.fixed_pic_rate_general_flag)
hdr->flags.fixed_pic_rate_within_cvs_flag = get_bits1(gb);
@@ -426,11 +424,11 @@ static int decode_hrd(GetBitContext *gb, int common_inf_present,
}
if (hdr->flags.nal_hrd_parameters_present_flag)
- decode_sublayer_hrd(gb, hdr->cpb_cnt_minus1[i], &hdr->nal_params[i],
+ decode_sublayer_hrd(gb, hdr->cpb_cnt_minus1[i]+1, &hdr->nal_params[i],
hdr->flags.sub_pic_hrd_params_present_flag);
if (hdr->flags.vcl_hrd_parameters_present_flag)
- decode_sublayer_hrd(gb, hdr->cpb_cnt_minus1[i], &hdr->vcl_params[i],
+ decode_sublayer_hrd(gb, hdr->cpb_cnt_minus1[i]+1, &hdr->vcl_params[i],
hdr->flags.sub_pic_hrd_params_present_flag);
}
--
2.42.0
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next reply other threads:[~2023-09-10 15:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-10 15:25 llyyr [this message]
2023-09-10 15:25 ` [FFmpeg-devel] [PATCH v2 2/2] hevc_ps: fix fixed_rate check llyyr
2023-09-10 15:32 ` Lynne
2023-09-10 19:06 ` Derek Buitenhuis
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