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path: root/gst-libs/ext/libav/libavcodec/libmp3lame.c
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Diffstat (limited to 'gst-libs/ext/libav/libavcodec/libmp3lame.c')
-rw-r--r--gst-libs/ext/libav/libavcodec/libmp3lame.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/gst-libs/ext/libav/libavcodec/libmp3lame.c b/gst-libs/ext/libav/libavcodec/libmp3lame.c
index ee76ff8..2fc080f 100644
--- a/gst-libs/ext/libav/libavcodec/libmp3lame.c
+++ b/gst-libs/ext/libav/libavcodec/libmp3lame.c
@@ -175,6 +175,7 @@ static int mp3lame_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
MPADecodeHeader hdr;
int len, ret, ch;
int lame_result;
+ uint32_t h;
if (frame) {
switch (avctx->sample_fmt) {
@@ -230,7 +231,12 @@ static int mp3lame_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
determine the frame size. */
if (s->buffer_index < 4)
return 0;
- if (avpriv_mpegaudio_decode_header(&hdr, AV_RB32(s->buffer))) {
+ h = AV_RB32(s->buffer);
+ if (ff_mpa_check_header(h) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid mp3 header at start of buffer\n");
+ return AVERROR_BUG;
+ }
+ if (avpriv_mpegaudio_decode_header(&hdr, h)) {
av_log(avctx, AV_LOG_ERROR, "free format output not supported\n");
return -1;
}