X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fdcstr.c;h=71dce08bf736aaa513fc56338fb4fbd87be4577f;hb=0814610ee35614e417d6942784f7b299f2414a9b;hp=6035dd43344cec78e209877ea41daa873b5dbd2f;hpb=c2631dfd0a0a12050cc1765fd41702c5e93abee5;p=ffmpeg

diff --git a/libavformat/dcstr.c b/libavformat/dcstr.c
index 6035dd43344..71dce08bf73 100644
--- a/libavformat/dcstr.c
+++ b/libavformat/dcstr.c
@@ -22,7 +22,7 @@
 #include "avformat.h"
 #include "internal.h"
 
-static int dcstr_probe(AVProbeData *p)
+static int dcstr_probe(const AVProbeData *p)
 {
     if (p->buf_size < 224 || memcmp(p->buf + 213, "Sega Stream", 11))
         return 0;
@@ -43,6 +43,8 @@ static int dcstr_read_header(AVFormatContext *s)
     st->codecpar->codec_type  = AVMEDIA_TYPE_AUDIO;
     st->codecpar->channels    = avio_rl32(s->pb);
     st->codecpar->sample_rate = avio_rl32(s->pb);
+    if (st->codecpar->sample_rate <= 0)
+        return AVERROR_INVALIDDATA;
     codec                  = avio_rl32(s->pb);
     align                  = avio_rl32(s->pb);
     avio_skip(s->pb, 4);
@@ -76,7 +78,7 @@ static int dcstr_read_packet(AVFormatContext *s, AVPacket *pkt)
     return av_get_packet(s->pb, pkt, par->block_align);
 }
 
-AVInputFormat ff_dcstr_demuxer = {
+const AVInputFormat ff_dcstr_demuxer = {
     .name           = "dcstr",
     .long_name      = NULL_IF_CONFIG_SMALL("Sega DC STR"),
     .read_probe     = dcstr_probe,