From a3923482f2a2b7895b1f6ef691765f035526fc78 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Tomas=20H=C3=A4rdin?= Date: Thu, 26 Jan 2012 13:21:31 +0100 Subject: [PATCH] mxfdec: Make sure x < index_table->nb_ptses Avoids a SIGSEGV on files with IndexEntryCount < IndexDuration. Signed-off-by: Diego Biurrun --- libavformat/mxfdec.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 96b662f431..d7f3c5ea44 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -1113,6 +1113,13 @@ 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;