[FFmpeg-cvslog] r22521 - trunk/libavformat/avidec.c

[reimar]

Author: reimar
Date: Sun Mar 14 14:38:00 2010
New Revision: 22521

Log:
Avoid creating tiny (possibly only 64 bytes large) audio packets resulting in
huge processing and memory usage overhead for avi files with raw PCM audio.

Modified:
   trunk/libavformat/avidec.c

Modified: trunk/libavformat/avidec.c
==============================================================================
--- trunk/libavformat/avidec.c	Sun Mar 14 02:52:31 2010	(r22520)
+++ trunk/libavformat/avidec.c	Sun Mar 14 14:38:00 2010	(r22521)
@@ -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;