[FFmpeg-cvslog] mpc7: return error if packet is too small.

[Justin Ruggles]

ffmpeg | branch: release/0.7 | Justin Ruggles <justin.ruggles at gmail.com> | Wed Sep 14 11:16:42 2011 -0400| [490617b6ffa13f8e49a196a752f927d5ebad6e2b] | committer: Michael Niedermayer

mpc7: return error if packet is too small.
(cherry picked from commit 8290d1f38b438f1b070de67645c8b4a42014c7ac)

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=490617b6ffa13f8e49a196a752f927d5ebad6e2b
---

 libavcodec/mpc7.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/libavcodec/mpc7.c b/libavcodec/mpc7.c
index 515bbf6..6477edc 100644
--- a/libavcodec/mpc7.c
+++ b/libavcodec/mpc7.c
@@ -203,6 +203,7 @@ static int mpc7_decode_frame(AVCodecContext * avctx,
     memset(bands, 0, sizeof(bands));
     if(buf_size <= 4){
         av_log(avctx, AV_LOG_ERROR, "Too small buffer passed (%i bytes)\n", buf_size);
+        return AVERROR(EINVAL);
     }
 
     out_size = (buf[1] ? c->lastframelen : MPC_FRAME_SIZE) * 4;