Merge remote-tracking branch 'qatar/master'

* qatar/master:
  binkvideo: simplify and remove invalid shifts
  pulse: compute frame_duration once and fix it
  lavf: simplify format_child_class_next()
  hwaccel: OS X Video Decoder Acceleration (VDA) support.
  doc: add support for an optional navigation bar in texi2html pages

Conflicts:
	configure
	libavcodec/Makefile
	libavcodec/allcodecs.c
	libavcodec/vda.c
	libavcodec/vda.h
	libavcodec/vda_h264.c
	libavcodec/vda_internal.h
	libavcodec/version.h
	libavformat/options.c
	libavutil/avutil.h
	libavutil/pixfmt.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 18 insertions, 19 deletions

diff --git a/libavformat/options.c b/libavformat/options.c
index 4afb8b52bc..3290f92a37 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -53,30 +53,29 @@ static const AVClass *format_child_class_next(const AVClass *prev)
     AVInputFormat  *ifmt = NULL;
     AVOutputFormat *ofmt = NULL;
 
-    while (prev && (ifmt = av_iformat_next(ifmt)))
-        if (ifmt->priv_class == prev){
-            prev = NULL;
-            break;
-        }
     if (!prev)
+#if !FF_API_OLD_AVIO
+        return &ffio_url_class;
+#else
+    prev = (void *)&ifmt; // Dummy pointer;
+#endif
+
+    while ((ifmt = av_iformat_next(ifmt)))
+        if (ifmt->priv_class == prev)
+            break;
+
+    if (!ifmt)
+        while ((ofmt = av_oformat_next(ofmt)))
+            if (ofmt->priv_class == prev)
+                break;
+    if (!ofmt)
         while (ifmt = av_iformat_next(ifmt))
             if (ifmt->priv_class)
                 return ifmt->priv_class;
 
-    while (prev && (ofmt = av_oformat_next(ofmt)))
-        if (ofmt->priv_class == prev){
-            prev = NULL;
-            break;
-        }
-    if (!prev)
-        while (ofmt = av_oformat_next(ofmt))
-            if (ofmt->priv_class)
-                return ofmt->priv_class;
-
-#if !FF_API_OLD_AVIO
-    if (prev != &ffio_url_class)
-        return &ffio_url_class;
-#endif
+    while (ofmt = av_oformat_next(ofmt))
+        if (ofmt->priv_class)
+            return ofmt->priv_class;
 
     return NULL;
 }