Avoid creating tiny (possibly only 64 bytes large) audio packets resulting in
authorReimar Döffinger <Reimar.Doeffinger@gmx.de>
Sun, 14 Mar 2010 13:38:00 +0000 (13:38 +0000)
committerReimar Döffinger <Reimar.Doeffinger@gmx.de>
Sun, 14 Mar 2010 13:38:00 +0000 (13:38 +0000)
huge processing and memory usage overhead for avi files with raw PCM audio.

Originally committed as revision 22521 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/avidec.c

index d56dcd2..cba34f8 100644 (file)
@@ -749,7 +749,8 @@ resync:
         if(ast->sample_size <= 1) // minorityreport.AVI block_align=1024 sample_size=1 IMA-ADPCM
             size= INT_MAX;
         else if(ast->sample_size < 32)
-            size= 64*ast->sample_size;
+            // arbitrary multiplier to avoid tiny packets for raw PCM data
+            size= 1024*ast->sample_size;
         else
             size= ast->sample_size;