Add VideoCodec::PreferDecodeLate

webrtc/modules/video_coding/codec_database.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 18 matching lines @@
                     bool require_key_frame);
 
   rtc::scoped_ptr<VideoCodec> settings;
   int number_of_cores;
   bool require_key_frame;
 };
 
 struct VCMExtDecoderMapItem {
  public:
   VCMExtDecoderMapItem(VideoDecoder* external_decoder_instance,
-                       uint8_t payload_type,
-                       bool internal_render_timing);
+                       uint8_t payload_type);
 
   uint8_t payload_type;
   VideoDecoder* external_decoder_instance;
-  bool internal_render_timing;
 };
 
 class VCMCodecDataBase {
  public:
   VCMCodecDataBase(VideoEncoderRateObserver* encoder_rate_observer,
                    VCMEncodedFrameCallback* encoded_frame_callback);
   ~VCMCodecDataBase();
 
   // Sender Side
   // Returns the default settings for the codec with type |codec_type|.
@@ skipping 28 matching lines @@
   bool DeregisterExternalEncoder(uint8_t payload_type, bool* was_send_codec);
 
   VCMGenericEncoder* GetEncoder();
 
   bool SetPeriodicKeyFrames(bool enable);
 
   // Deregisters an external decoder object specified by |payload_type|.
   bool DeregisterExternalDecoder(uint8_t payload_type);
 
   // Registers an external decoder object to the payload type |payload_type|.
-  // |internal_render_timing| is set to true if the |external_decoder| has
-  // built in rendering which is able to obey the render timestamps of the
-  // encoded frames.
   void RegisterExternalDecoder(VideoDecoder* external_decoder,
-                               uint8_t payload_type,
-                               bool internal_render_timing);
+                               uint8_t payload_type);
 
   bool DecoderRegistered() const;
 
   bool RegisterReceiveCodec(const VideoCodec* receive_codec,
                             int number_of_cores,
                             bool require_key_frame);
 
   bool DeregisterReceiveCodec(uint8_t payload_type);
 
   // Get current receive side codec. Relevant for internal codecs only.
   bool ReceiveCodec(VideoCodec* current_receive_codec) const;
 
   // Get current receive side codec type. Relevant for internal codecs only.
   VideoCodecType ReceiveCodec() const;
 
   // Returns a decoder specified by |payload_type|. The decoded frame callback
   // of the encoder is set to |decoded_frame_callback|. If no such decoder
   // already exists an instance will be created and initialized.
   // NULL is returned if no encoder with the specified payload type was found
   // and the function failed to create one.
   VCMGenericDecoder* GetDecoder(
       const VCMEncodedFrame& frame,
       VCMDecodedFrameCallback* decoded_frame_callback);
 
   // Deletes the memory of the decoder instance |decoder|. Used to delete
   // deep copies returned by CreateDecoderCopy().
   void ReleaseDecoder(VCMGenericDecoder* decoder) const;
 
-  // Returns true if the currently active decoder supports render scheduling,
-  // that is, it is able to render frames according to the render timestamp of
-  // the encoded frames.
-  bool SupportsRenderScheduling() const;
+  // Returns true if the currently active decoder prefer to decode frames late.
+  // That means that frames must be decoded near the render times stamp.
+  bool PrefersLateDecoding() const;
 
   bool MatchesCurrentResolution(int width, int height) const;
 
  private:
   typedef std::map<uint8_t, VCMDecoderMapItem*> DecoderMap;
   typedef std::map<uint8_t, VCMExtDecoderMapItem*> ExternalDecoderMap;
 
   VCMGenericDecoder* CreateAndInitDecoder(const VCMEncodedFrame& frame,
                                           VideoCodec* new_codec) const;
 
@@ skipping 24 matching lines @@
   VCMEncodedFrameCallback* const encoded_frame_callback_;
   rtc::scoped_ptr<VCMGenericEncoder> ptr_encoder_;
   VCMGenericDecoder* ptr_decoder_;
   DecoderMap dec_map_;
   ExternalDecoderMap dec_external_map_;
 };  // VCMCodecDataBase
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_CODEC_DATABASE_H_