increase buffer size of LAME MP3 encoder

The previous size lead to A/V sync issues
Patch by Andreas Öman %andreas AA olebyn PP nu%
Original thread:
Date: Jul 21, 2007 9:53 AM
Subject: [FFmpeg-devel] [PATCH] lame buffer shortage

Originally committed as revision 9786 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/libmp3lame.c

@@ -28,7 +28,7 @@
 #include "mpegaudio.h"
 #include <lame/lame.h>
 
-#define BUFFER_SIZE (2*MPA_FRAME_SIZE)
+#define BUFFER_SIZE (7200 + MPA_FRAME_SIZE + MPA_FRAME_SIZE/4)
 typedef struct Mp3AudioContext {
     lame_global_flags *gfp;
     int stereo;