Data type conversion between extensions API and Cast API

chrome/renderer/media/cast_send_transport.h

 // Copyright 2013 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 CHROME_RENDERER_MEDIA_CAST_SEND_TRANSPORT_H_
 #define CHROME_RENDERER_MEDIA_CAST_SEND_TRANSPORT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 20 matching lines @@
 struct CastRtpPayloadParams {
   // RTP specific field that identifies the content type.
   int payload_type;
 
   // RTP specific field to identify a stream.
   int ssrc;
 
   // Update frequency of payload sample.
   int clock_rate;
 
-  // Uncompressed bitrate.
-  int bitrate;
+  // Maximum bitrate.
+  int max_bitrate;
+
+  // Minimum bitrate.
+  int min_bitrate;
 
   // Number of audio channels.
   int channels;
 
   // Width and height of the video content.
   int width;
   int height;
 
   // Name of the codec used.
   std::string codec_name;
 
   // List of codec specific parameters.
   std::vector<CastCodecSpecificParams> codec_specific_params;
 
   CastRtpPayloadParams();
   ~CastRtpPayloadParams();
 };
 
 // Defines the capabilities of the transport.
 struct CastRtpCaps {
   // Defines a list of supported payloads.
   std::vector<CastRtpPayloadParams> payloads;
 
   // Names of supported RTCP features.
   std::vector<std::string> rtcp_features;
 
   // Names of supported FEC (Forward Error Correction) mechanisms.
-  std::vector<std::string> fec_mechanism;
+  std::vector<std::string> fec_mechanisms;
 
   CastRtpCaps();
   ~CastRtpCaps();
 };
 
 typedef CastRtpCaps CastRtpParams;

[justinlin, 2013/11/01 16:08:21]

q: so CastRtpCaps == CastRtpParams?

[Alpha Left Google, 2013/11/01 22:27:47]

Yes they are the same thing.

 
 // This class takes input from audio and/or video WebMediaStreamTracks
 // and then send the encoded streams to the underlying transport,
 // e.g. a UDP transport. It also allows configuration of the encoded
 // stream.
 class CastSendTransport {
  public:
   explicit CastSendTransport(CastUdpTransport* udp_transport);
   ~CastSendTransport();
 
   // Return capabilities currently spported by this transport.

[justinlin, 2013/11/01 16:08:21]

typo here

   CastRtpCaps GetCaps();
 
   // Return parameters set to this transport.
   CastRtpParams GetParams();
 
   // Return the best parameters given the capabilities of remote peer.
   CastRtpParams CreateParams(const CastRtpCaps& remote_caps);
 
   // Begin encoding of media stream and then submit the encoded streams
   // to underlying transport.
   void Start(const CastRtpParams& params);
 
   // Stop encoding.
   void Stop();
 
  private:
   const scoped_refptr<CastSession> cast_session_;
 
   DISALLOW_COPY_AND_ASSIGN(CastSendTransport);
 };
 
 #endif  // CHROME_RENDERER_MEDIA_CAST_SEND_TRANSPORT_H_