diff options
Diffstat (limited to 'libavcodec/libmp3lame.c')
-rw-r--r-- | libavcodec/libmp3lame.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libavcodec/libmp3lame.c b/libavcodec/libmp3lame.c index eebc65c44d..dee1909609 100644 --- a/libavcodec/libmp3lame.c +++ b/libavcodec/libmp3lame.c @@ -182,6 +182,7 @@ 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) { @@ -237,7 +238,12 @@ 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; } |