avcodec/flac: Check bps in ff_flac_parse_streaminfo()

8 years ago · 020d53ebdb
parent 9859f54db3
commit 020d53ebdb
1 changed files with 5 additions and 0 deletions
--- a/libavcodec/flac.c
+++ b/libavcodec/flac.c
@ -222,6 +222,11 @@ void ff_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *s,
    s->channels = get_bits(&gb, 3) + 1;
    s->bps = get_bits(&gb, 5) + 1;

+    if (s->bps < 4) {
+        av_log(avctx, AV_LOG_ERROR, "invalid bps: %d\n", s->bps);
+        s->bps = 16;
+    }
+
    avctx->channels = s->channels;
    avctx->sample_rate = s->samplerate;
    avctx->bits_per_raw_sample = s->bps;