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| author | Zdenek Kabelac <kabi@informatics.muni.cz> | 2001-10-23 19:03:33 +0000 |
|---|---|---|
| committer | Zdenek Kabelac <kabi@informatics.muni.cz> | 2001-10-23 19:03:33 +0000 |
| commit | c152c98327ae10cefa2bb33514a1c447f1f2a9ee (patch) | |
| tree | 21c4e6e2177d53c4fae7d318000c8a5ac527cf18 /libavcodec/mpegaudiodec.c | |
| parent | 525782f33ff4be92bb27967c021fc244c92bdebc (diff) | |
| download | ffmpeg-c152c98327ae10cefa2bb33514a1c447f1f2a9ee.tar.gz | |
* simple fix to avoid memcpy with len < 0
Originally committed as revision 180 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/mpegaudiodec.c')
| -rw-r--r-- | libavcodec/mpegaudiodec.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libavcodec/mpegaudiodec.c b/libavcodec/mpegaudiodec.c index ca610d65ef..80a145b82f 100644 --- a/libavcodec/mpegaudiodec.c +++ b/libavcodec/mpegaudiodec.c @@ -2268,11 +2268,13 @@ static int decode_frame(AVCodecContext * avctx, len = HEADER_SIZE - len; if (len > buf_size) len = buf_size; + else if (len > 0) { memcpy(s->inbuf_ptr, buf_ptr, len); buf_ptr += len; - s->inbuf_ptr += len; buf_size -= len; - if ((s->inbuf_ptr - s->inbuf) == HEADER_SIZE) { + s->inbuf_ptr += len; + } + if ((s->inbuf_ptr - s->inbuf) >= HEADER_SIZE) { got_header: header = (s->inbuf[0] << 24) | (s->inbuf[1] << 16) | (s->inbuf[2] << 8) | s->inbuf[3]; |