ffmpeg source update for sep 09

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

 /*
  * Filter layer - format negotiation
  * copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
@@ skipping 89 matching lines @@
 
     (*avff)->formats = fmts;
     (*avff)->formats[(*avff)->format_count++] = fmt;
     return 0;
 }
 
 AVFilterFormats *avfilter_all_formats(enum AVMediaType type)
 {
     AVFilterFormats *ret = NULL;
     int fmt;
-    int num_formats = type == AVMEDIA_TYPE_VIDEO ? PIX_FMT_NB : 0;
+    int num_formats = type == AVMEDIA_TYPE_VIDEO ? PIX_FMT_NB    :
+                      type == AVMEDIA_TYPE_AUDIO ? SAMPLE_FMT_NB : 0;
 
     for (fmt = 0; fmt < num_formats; fmt++)
         if ((type != AVMEDIA_TYPE_VIDEO) ||
             (type == AVMEDIA_TYPE_VIDEO && !(av_pix_fmt_descriptors[fmt].flags & PIX_FMT_HWACCEL)))
             avfilter_add_format(&ret, fmt);
 
     return ret;
 }
 
 void avfilter_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
@@ skipping 38 matching lines @@
 {
     int idx = find_ref_index(oldref);
 
     if(idx >= 0) {
         (*oldref)->refs[idx] = newref;
         *newref = *oldref;
         *oldref = NULL;
     }
 }