lavf/wavenc: check for a single stream.

Fix trac ticket #3110.
11 years ago · eeb975f5cd
parent e56d1a1203
commit eeb975f5cd
1 changed files with 5 additions and 0 deletions
--- a/libavformat/wavenc.c
+++ b/libavformat/wavenc.c
@ -116,6 +116,11 @@ static int wav_write_header(AVFormatContext *s)
    AVIOContext *pb = s->pb;
    int64_t fmt;

+    if (s->nb_streams != 1) {
+        av_log(s, AV_LOG_ERROR, "WAVE files have exactly one stream\n");
+        return AVERROR(EINVAL);
+    }
+
    if (wav->rf64 == RF64_ALWAYS) {
        ffio_wfourcc(pb, "RF64");
        avio_wl32(pb, -1); /* RF64 chunk size: use size in ds64 */