patched ffmpeg nov 2

source/patched-ffmpeg-mt/libavfilter/avfilter.c

Index: source/patched-ffmpeg-mt/libavfilter/avfilter.c
===================================================================
--- source/patched-ffmpeg-mt/libavfilter/avfilter.c	(revision 65184)
+++ source/patched-ffmpeg-mt/libavfilter/avfilter.c	(working copy)
@@ -23,6 +23,7 @@
 
 #include "libavcodec/audioconvert.c"
 #include "libavutil/pixdesc.h"
+#include "libavutil/rational.h"
 #include "libavcore/imgutils.h"
 #include "avfilter.h"
 #include "internal.h"
@@ -156,6 +157,7 @@
 {
     int (*config_link)(AVFilterLink *);
     unsigned i;
+    int ret;
 
     for (i = 0; i < filter->input_count; i ++) {
         AVFilterLink *link = filter->inputs[i];
@@ -171,17 +173,21 @@
         case AVLINK_UNINIT:
             link->init_state = AVLINK_STARTINIT;
 
-            if (avfilter_config_links(link->src))
-                return -1;
+            if ((ret = avfilter_config_links(link->src)) < 0)
+                return ret;
 
             if (!(config_link = link->srcpad->config_props))
                 config_link  = avfilter_default_config_output_link;
-            if (config_link(link))
-                return -1;
+            if ((ret = config_link(link)) < 0)
+                return ret;
 
+            if (link->time_base.num == 0 && link->time_base.den == 0)
+                link->time_base = link->src && link->src->input_count ?
+                    link->src->inputs[0]->time_base : AV_TIME_BASE_Q;
+
             if ((config_link = link->dstpad->config_props))
-                if (config_link(link))
-                    return -1;
+                if ((ret = config_link(link)) < 0)
+                    return ret;
 
             link->init_state = AVLINK_INIT;
         }