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From: koushd@gmail.com
To: ffmpeg-devel@ffmpeg.org
Date: Wed, 26 Mar 2025 13:50:57 -0700
Message-Id: <20250326205057.73627-1-koushd@gmail.com>
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Subject: [FFmpeg-devel] [PATCH] libavformat/sdp: VPS is not a mandatory HEVC
codec parameter.
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Cc: Koushik Dutta <koushd@gmail.com>
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From: Koushik Dutta <koushd@gmail.com>
Many IP cameras do not place VPS in the SDP, and only send it
in the stream. The RTSP SDP only contains SPS/PPS.
Signed-off-by: Koushik Dutta <koushd@gmail.com>
---
libavformat/sdp.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/libavformat/sdp.c b/libavformat/sdp.c
index 28490d77f3..64fe9d61ac 100644
--- a/libavformat/sdp.c
+++ b/libavformat/sdp.c
@@ -301,7 +301,9 @@ static int extradata2psets_hevc(AVFormatContext *fmt, const AVCodecParameters *p
pos += len;
}
}
- if (!ps_pos[0] || !ps_pos[1] || !ps_pos[2])
+
+ // VPS is not mandatory
+ if (!ps_pos[1] || !ps_pos[2])
goto err;
psets = av_mallocz(MAX_PSET_SIZE);
@@ -314,6 +316,8 @@ static int extradata2psets_hevc(AVFormatContext *fmt, const AVCodecParameters *p
for (i = 0; i < 3; i++) {
pos = ps_pos[i];
+ if (!pos)
+ continue;
if (i > 0)
av_strlcat(psets, "; ", MAX_PSET_SIZE);
--
2.39.5 (Apple Git-154)
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