From 3d9c007b6116df30bfa179ae8e9fa54e4b9db2d0 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 10 Dec 2016 20:15:13 +0100 Subject: [PATCH] avformat/utils: Print verbose error message if stream count exceeds max_streams Reviewed-by: Andreas Cadhalpun Signed-off-by: Michael Niedermayer (cherry picked from commit f0bdd538712d8ed34120ab2b7bd1409fcc99fb45) Signed-off-by: Michael Niedermayer --- libavformat/utils.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/libavformat/utils.c b/libavformat/utils.c index f1198c0079..17bbdb44be 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -4087,8 +4087,11 @@ AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c) int i; AVStream **streams; - if (s->nb_streams >= FFMIN(s->max_streams, INT_MAX/sizeof(*streams))) + if (s->nb_streams >= FFMIN(s->max_streams, INT_MAX/sizeof(*streams))) { + if (s->max_streams < INT_MAX/sizeof(*streams)) + av_log(s, AV_LOG_ERROR, "Number of streams exceeds max_streams parameter (%d), see the documentation if you wish to increase it\n", s->max_streams); return NULL; + } streams = av_realloc_array(s->streams, s->nb_streams + 1, sizeof(*streams)); if (!streams) return NULL;