call xvid_init() only once, and move duplicated code into one place

Original commit message from CVS:
call xvid_init() only once, and move duplicated code into one place

1 files changed, 32 insertions, 0 deletions

diff --git a/ext/xvid/gstxvid.c b/ext/xvid/gstxvid.c
index fb7d06f4..8496a9d4 100644
--- a/ext/xvid/gstxvid.c
+++ b/ext/xvid/gstxvid.c
@@ -26,6 +26,38 @@
 #include "gstxviddec.h"
 #include "gstxvidenc.h"
 
+gboolean
+gst_xvid_init (void)
+{
+  XVID_INIT_PARAM xinit;
+  gint ret;
+  static gboolean is_init = FALSE;
+
+  /* only init once */
+  if (is_init == TRUE) {
+    return TRUE;
+  }
+
+  /* set up xvid initially (function pointers, CPU flags) */
+  memset(&xinit, 0, sizeof(XVID_INIT_PARAM));
+  xinit.cpu_flags = 0;
+  if ((ret = xvid_init(NULL, 0, &xinit, NULL)) != XVID_ERR_OK) {
+    g_warning("Failed to initialize XviD: %s (%d)",
+	      gst_xvid_error(ret), ret);
+    return FALSE;
+  }
+  
+  if (xinit.api_version != API_VERSION) {
+    g_warning("Xvid API version mismatch! %d.%d (that's us) != %d.%d (lib)",
+              (API_VERSION >> 8) & 0xff, API_VERSION & 0xff,
+              (xinit.api_version >> 8) & 0xff, xinit.api_version & 0xff);
+    return FALSE;
+  }
+
+  is_init = TRUE;
+  return TRUE;
+}
+
 gchar *
 gst_xvid_error (int errorcode)
 {