From: Mike Melanson <mike@multimedia.cx>
Date: Sat, 31 Jan 2004 17:30:28 +0000 (+0000)
Subject: handle 0-length buffers
X-Git-Tag: v0.5~15472
X-Git-Url: https://git.libav.org/?p=libav.git;a=commitdiff_plain;h=c89c1d2542401b40c6ede6ed3ff4f323c3a85de8

handle 0-length buffers

Originally committed as revision 2731 to svn://svn.ffmpeg.org/ffmpeg/trunk
---

diff --git a/libavcodec/dpcm.c b/libavcodec/dpcm.c
index ef4ccf8860..b59a9cd6b8 100644
--- a/libavcodec/dpcm.c
+++ b/libavcodec/dpcm.c
@@ -125,6 +125,9 @@ static int dpcm_decode_frame(AVCodecContext *avctx,
     unsigned char byte;
     short diff;
 
+    if (!buf_size)
+        return 0;
+
     switch(avctx->codec->id) {
 
     case CODEC_ID_ROQ_DPCM: