Merge pull request #275 from trav90/ffvpx-resync

Resync ffvpx code with 3.4.2-release from upstream

1 files changed, 10 insertions, 1 deletions

diff --git a/media/ffvpx/libavcodec/flac.c b/media/ffvpx/libavcodec/flac.c
index f5154b914..5ffbf9319 100644
--- a/media/ffvpx/libavcodec/flac.c
+++ b/media/ffvpx/libavcodec/flac.c
@@ -201,7 +201,7 @@ void ff_flac_set_channel_layout(AVCodecContext *avctx)
         avctx->channel_layout = 0;
 }
 
-void ff_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *s,
+int ff_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *s,
                               const uint8_t *buffer)
 {
     GetBitContext gb;
@@ -213,6 +213,7 @@ void ff_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *s,
         av_log(avctx, AV_LOG_WARNING, "invalid max blocksize: %d\n",
                s->max_blocksize);
         s->max_blocksize = 16;
+        return AVERROR_INVALIDDATA;
     }
 
     skip_bits(&gb, 24); /* skip min frame size */
@@ -222,6 +223,12 @@ 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;
+        return AVERROR_INVALIDDATA;
+    }
+
     avctx->channels = s->channels;
     avctx->sample_rate = s->samplerate;
     avctx->bits_per_raw_sample = s->bps;
@@ -234,4 +241,6 @@ void ff_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *s,
 
     skip_bits_long(&gb, 64); /* md5 sum */
     skip_bits_long(&gb, 64); /* md5 sum */
+
+    return 0;
 }