From 18507b48825da45055f7ba1f933aa64cf90de253 Mon Sep 17 00:00:00 2001 From: James Almer Date: Fri, 29 Nov 2019 23:13:36 -0300 Subject: [PATCH] avformat/avc: fix sps buffer offset when calling ff_avc_decode_sps() Skip the avcC specific size bytes and the NAL header bits. Signed-off-by: James Almer --- libavformat/avc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/avc.c b/libavformat/avc.c index a3516a2fb7..2fb16872c4 100644 --- a/libavformat/avc.c +++ b/libavformat/avc.c @@ -197,7 +197,7 @@ int ff_isom_write_avcc(AVIOContext *pb, const uint8_t *data, int len) avio_write(pb, pps, pps_size); if (sps[3] != 66 && sps[3] != 77 && sps[3] != 88) { - H264SequenceParameterSet *seq = ff_avc_decode_sps(sps, sps_size); + H264SequenceParameterSet *seq = ff_avc_decode_sps(sps + 3, sps_size - 3); if (!seq) goto fail; avio_w8(pb, 0xfc | seq->chroma_format_idc); /* 6 bits reserved (111111) + chroma_format_idc */