[Cast] Repair receiver playout time calculations and frame skip logic.

media/cast/transport/cast_transport_config.h

 // Copyright 2014 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_TRANSPORT_CAST_TRANSPORT_CONFIG_H_
 #define MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_CONFIG_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 12 matching lines @@
   kRtcpCompound,     // Compound RTCP mode is described by RFC 4585.
   kRtcpReducedSize,  // Reduced-size RTCP mode is described by RFC 5506.
 };
 
 enum VideoCodec { kFakeSoftwareVideo, kVp8, kH264, kVideoCodecLast = kH264 };
 
 enum AudioCodec {
   kFakeSoftwareAudio,
   kOpus,
   kPcm16,
-  kExternalAudio,
-  kAudioCodecLast = kExternalAudio
+  kAudioCodecLast = kPcm16
 };
 
+bool CanDropFramesForCodec(AudioCodec audio_codec);
+bool CanDropFramesForCodec(VideoCodec video_codec);
+
 struct RtpConfig {
   RtpConfig();
   ~RtpConfig();
   uint32 ssrc;
   int max_delay_ms;
   int payload_type;
   std::string aes_key;      // Binary string of size kAesKeySize.
   std::string aes_iv_mask;  // Binary string of size kAesBlockSize.
 };
 
@@ skipping 130 matching lines @@
          lhs.rtp_timestamp == rhs.rtp_timestamp &&
          lhs.send_packet_count == rhs.send_packet_count &&
          lhs.send_octet_count == rhs.send_octet_count;
 }
 
 }  // namespace transport
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_CONFIG_H_