[gegl] ff-load: Fix build against ffmpeg 0.8/53+

[Jon Nordby <jonnor src gnome org>]

commit 1dfb44caf66913d90d70e840695f55018538351c
Author: David Evans <devans macports org>
Date:   Sun Oct 2 20:09:27 2011 +0200

    ff-load: Fix build against ffmpeg 0.8/53+
    
    Fixes: BGO#652957 - ff-load: Needs to be updated to new ffmpeg/avutils API

 operations/external/ff-load.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/operations/external/ff-load.c b/operations/external/ff-load.c
index 37c6aa4..b5c735b 100644
--- a/operations/external/ff-load.c
+++ b/operations/external/ff-load.c
@@ -69,7 +69,11 @@ print_error (const char *filename, int err)
 {
   switch (err)
     {
+#if LIBAVFORMAT_VERSION_MAJOR >= 53
+    case AVERROR(EINVAL):
+#else
     case AVERROR_NUMEXPECTED:
+#endif
       g_warning ("%s: Incorrect image filename syntax.\n"
                  "Use '%%d' to specify the image number:\n"
                  "  for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
@@ -77,10 +81,14 @@ print_error (const char *filename, int err)
                  filename);
       break;
     case AVERROR_INVALIDDATA:
+#if LIBAVFORMAT_VERSION_MAJOR >= 53
+      g_warning ("%s: Error while parsing header or unknown format\n", filename);
+#else
       g_warning ("%s: Error while parsing header\n", filename);
       break;
     case AVERROR_NOFMT:
       g_warning ("%s: Unknown format\n", filename);
+#endif
       break;
     default:
       g_warning ("%s: Error while opening file\n", filename);
@@ -278,7 +286,11 @@ prepare (GeglOperation *operation)
       for (i = 0; i< p->ic->nb_streams; i++)
         {
           AVCodecContext *c = p->ic->streams[i]->codec;
+#if LIBAVFORMAT_VERSION_MAJOR >= 53
+          if (c->codec_type == AVMEDIA_TYPE_VIDEO)
+#else
           if (c->codec_type == CODEC_TYPE_VIDEO)
+#endif
             {
               p->video_st = p->ic->streams[i];
               p->video_stream = i;