Refactoring: Use enum for RtpPayloadType.

media/cast/cast_config.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 MEDIA_CAST_CAST_CONFIG_H_
 #define MEDIA_CAST_CAST_CONFIG_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 26 matching lines @@
   kDefaultMaxFrameRate = 30,
 
   // End-to-end latency in milliseconds.
   //
   // DO NOT USE THIS (400 ms is proven as ideal for general-purpose use).
   //
   // TODO(miu): Change to 400, and confirm nothing has broken in later change.
   // http://crbug.com/530839
   kDefaultRtpMaxDelayMs = 100,
 
-  // RTP payload types that identify an RTP stream as audio or video.
-  kDefaultRtpAudioPayloadType = 127,
-  kDefaultRtpVideoPayloadType = 96,
-
   // Suggested minimum and maximum video bitrates for general-purpose use (up to
   // 1080p, 30 FPS).
   kDefaultMinVideoKbps = 300,
   kDefaultMaxVideoKbps = 5000,
 };
 
 // TODO(miu): Merge AudioSenderConfig and VideoSenderConfig and make their
 // naming/documentation consistent with FrameReceiverConfig.
 // http://crbug.com/530839
 struct AudioSenderConfig {
@@ skipping 13 matching lines @@
   // transmit/retransmit, receive, decode, and render; given its run-time
   // environment (sender/receiver hardware performance, network conditions,
   // etc.).
   base::TimeDelta min_playout_delay;
   base::TimeDelta max_playout_delay;
 
   // Starting playout delay when streaming animated content.
   base::TimeDelta animated_playout_delay;
 
   // RTP payload type enum: Specifies the type/encoding of frame data.
-  int rtp_payload_type;
+  RtpPayloadType rtp_payload_type;
 
   bool use_external_encoder;
   int frequency;
   int channels;
   int bitrate;  // Set to <= 0 for "auto variable bitrate" (libopus knows best).
   Codec codec;
 
   // The AES crypto key and initialization vector.  Each of these strings
   // contains the data in binary form, of size kAesKeySize.  If they are empty
   // strings, crypto is not being used.
@@ skipping 18 matching lines @@
   // transmit/retransmit, receive, decode, and render; given its run-time
   // environment (sender/receiver hardware performance, network conditions,
   // etc.).
   base::TimeDelta min_playout_delay;
   base::TimeDelta max_playout_delay;
 
   // Starting playout delay when streaming animated content.
   base::TimeDelta animated_playout_delay;
 
   // RTP payload type enum: Specifies the type/encoding of frame data.
-  int rtp_payload_type;
+  RtpPayloadType rtp_payload_type;
 
   bool use_external_encoder;
 
   float congestion_control_back_off;
   int max_bitrate;
   int min_bitrate;
   int start_bitrate;
   int max_qp;
   int min_qp;
 
@@ skipping 42 matching lines @@
 
   // The total amount of time between a frame's capture/recording on the sender
   // and its playback on the receiver (i.e., shown to a user).  This is fixed as
   // a value large enough to give the system sufficient time to encode,
   // transmit/retransmit, receive, decode, and render; given its run-time
   // environment (sender/receiver hardware performance, network conditions,
   // etc.).
   int rtp_max_delay_ms;  // TODO(miu): Change to TimeDelta target_playout_delay.
 
   // RTP payload type enum: Specifies the type/encoding of frame data.
-  int rtp_payload_type;
+  RtpPayloadType rtp_payload_type;
 
   // RTP timebase: The number of RTP units advanced per one second.  For audio,
   // this is the sampling rate.  For video, by convention, this is 90 kHz.
   int rtp_timebase;
 
   // Number of channels.  For audio, this is normally 2.  For video, this must
   // be 1 as Cast does not have support for stereoscopic video.
   int channels;
 
   // The target frame rate.  For audio, this is normally 100 (i.e., frames have
@@ skipping 22 matching lines @@
 typedef base::Callback<void(std::unique_ptr<base::SharedMemory>)>
     ReceiveVideoEncodeMemoryCallback;
 typedef base::Callback<void(size_t size,
                             const ReceiveVideoEncodeMemoryCallback&)>
     CreateVideoEncodeMemoryCallback;
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_CAST_CONFIG_H_