Remove DemuxerStream::GetAVStream() once and for all.

media/base/video_decoder_config.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_BASE_VIDEO_DECODER_CONFIG_H_
 #define MEDIA_BASE_VIDEO_DECODER_CONFIG_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "media/base/media_export.h"
@@ skipping 24 matching lines @@
   // appropriate values before using.
   VideoDecoderConfig();
 
   // Constructs an initialized object. It is acceptable to pass in NULL for
   // |extra_data|, otherwise the memory is copied.
   VideoDecoderConfig(VideoCodec codec,
                      VideoFrame::Format format,
                      const gfx::Size& coded_size,
                      const gfx::Rect& visible_rect,
                      int frame_rate_numerator, int frame_rate_denominator,
+                     int aspect_ratio_numerator, int aspect_ratio_denominator,
                      const uint8* extra_data, size_t extra_data_size);
 
   ~VideoDecoderConfig();
 
   // Resets the internal state of this object.
   void Initialize(VideoCodec codec,
                   VideoFrame::Format format,
                   const gfx::Size& coded_size,
                   const gfx::Rect& visible_rect,
                   int frame_rate_numerator, int frame_rate_denominator,
+                  int aspect_ratio_numerator, int aspect_ratio_denominator,
                   const uint8* extra_data, size_t extra_data_size);
 
   // Returns true if this object has appropriate configuration values, false
   // otherwise.
   bool IsValidConfig() const;
 
   VideoCodec codec() const;
 
   // Video format used to determine YUV buffer sizes.
   VideoFrame::Format format() const;
 
   // Width and height of video frame immediately post-decode. Not all pixels
   // in this region are valid.
   gfx::Size coded_size() const;
 
   // Region of |coded_size_| that is visible.
   gfx::Rect visible_rect() const;
 
   // Frame rate in seconds expressed as a fraction.
-  // TODO(scherkus): fairly certain decoders don't require frame rates.
+  //
+  // This information is required to properly timestamp video frames for
+  // codecs that contain repeated frames, such as found in H.264's
+  // supplemental enhancement information.
   int frame_rate_numerator() const;
   int frame_rate_denominator() const;
 
+  // Aspect ratio of the decoded video frame expressed as a fraction.
+  //
+  // TODO(scherkus): think of a better way to avoid having video decoders
+  // handle tricky aspect ratio dimension calculations.
+  int aspect_ratio_numerator() const;
+  int aspect_ratio_denominator() const;
+
   // Optional byte data required to initialize video decoders, such as H.264
   // AAVC data.
   uint8* extra_data() const;
   size_t extra_data_size() const;
 
  private:
   VideoCodec codec_;
 
   VideoFrame::Format format_;
 
   gfx::Size coded_size_;
   gfx::Rect visible_rect_;
 
   int frame_rate_numerator_;
   int frame_rate_denominator_;
 
+  int aspect_ratio_numerator_;
+  int aspect_ratio_denominator_;
+
   scoped_array<uint8> extra_data_;
   size_t extra_data_size_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoDecoderConfig);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_VIDEO_DECODER_CONFIG_H_