Add config change support to FFmpegVideoDecoder

media/base/video_frame.h

Index: media/base/video_frame.h
diff --git a/media/base/video_frame.h b/media/base/video_frame.h
index 55d4cd566ac0e702e59330e383f051a1043d6310..e15f4a1ebd5e2e66348a6cc890413ad7cc2bef5e 100644
--- a/media/base/video_frame.h
+++ b/media/base/video_frame.h
@@ -46,6 +46,15 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
       base::TimeDelta timestamp,
       base::TimeDelta duration);
 
+  static scoped_refptr<VideoFrame> CreateFrame(
+      Format format,
+      size_t width,
+      size_t height,
+      size_t natural_width,

[Ami GONE FROM CHROMIUM, 2012/07/13 00:59:05]

You need serious commentary about how the "natural_" prefix modifies the meaning
of the parameter.

+      size_t natural_height,
+      base::TimeDelta timestamp,
+      base::TimeDelta duration);
+
   // Call prior to CreateFrame to ensure validity of frame configuration. Called
   // automatically by VideoDecoderConfig::IsValidConfig().
   // TODO(scherkus): VideoDecoderConfig shouldn't call this method
@@ -61,6 +70,8 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
       uint32 texture_target,
       size_t width,
       size_t height,
+      size_t natural_width,
+      size_t natural_height,
       base::TimeDelta timestamp,
       base::TimeDelta duration,
       const base::Closure& no_longer_needed);
@@ -79,6 +90,10 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
 
   size_t height() const { return height_; }
 
+  size_t natural_width() const { return natural_width_; }
+
+  size_t natural_height() const { return natural_height_; }
+
   int stride(size_t plane) const;
 
   // Returns the number of bytes per row and number of rows for a given plane.
@@ -126,6 +141,8 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
   VideoFrame(Format format,
              size_t video_width,
              size_t video_height,
+             size_t natural_width,
+             size_t natural_height,
              base::TimeDelta timestamp,
              base::TimeDelta duration);
   virtual ~VideoFrame();
@@ -144,6 +161,10 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
   size_t width_;
   size_t height_;
 
+  // Aspect corrected width and height.
+  size_t natural_width_;
+  size_t natural_height_;
+
   // Array of strides for each plane, typically greater or equal to the width
   // of the surface divided by the horizontal sampling period.  Note that
   // strides can be negative.