From 6e9081f4d87b4ebcd3355ebd560307c59d2104c3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Tomas=20H=C3=A4rdin?= Date: Tue, 20 Dec 2011 09:57:07 +0100 Subject: [PATCH] mxfdec: Make sure x < index_table->nb_ptses Without this the demuxer will SIGSEGV on files with IndexEntryCount < IndexDuration --- libavformat/mxfdec.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 8a5c3c96ef..ea1129388e 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -1085,6 +1085,12 @@ static int mxf_compute_ptses_fake_index(MXFContext *mxf, MXFIndexTable *index_ta int offset = s->temporal_offset_entries[j] / index_delta; int index = x + offset; + if (x >= index_table->nb_ptses) { + av_log(mxf->fc, AV_LOG_ERROR, "x >= nb_ptses - IndexEntryCount %i < IndexDuration %"PRId64"?\n", + s->nb_index_entries, s->index_duration); + break; + } + index_table->fake_index[x].timestamp = x; index_table->fake_index[x].flags = !(s->flag_entries[j] & 0x30) ? AVINDEX_KEYFRAME : 0;