media/cast/cast_config.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "media/cast/cast_config.h"
   6
   7 namespace media {
   8 namespace cast {
   9
  10 // TODO(miu): Revisit code factoring of these structs.  There are a number of
  11 // common elements between them all, so it might be reasonable to only have one
  12 // or two structs; or, at least a common base class.
  13
  14 // TODO(miu): Make sure all POD members are initialized by ctors.  Policy
  15 // decision: Reasonable defaults or use invalid placeholder values to expose
  16 // unset members?
  17
  18 // TODO(miu): Provide IsValidConfig() functions?
  19
  20 // TODO(miu): Throughout the code, there is a lot of copy-and-paste of the same
  21 // calculations based on these config values.  So, why don't we add methods to
  22 // these classes to centralize the logic?
  23
  24 VideoSenderConfig::VideoSenderConfig()
  25     : ssrc(0),
  26       incoming_feedback_ssrc(0),
  27       rtcp_interval(kDefaultRtcpIntervalMs),
  28       rtcp_mode(kRtcpReducedSize),
  29       target_playout_delay(
  30           base::TimeDelta::FromMilliseconds(kDefaultRtpMaxDelayMs)),
  31       rtp_payload_type(0),
  32       use_external_encoder(false),
  33       width(0),
  34       height(0),
  35       congestion_control_back_off(kDefaultCongestionControlBackOff),
  36       max_bitrate(5000000),
  37       min_bitrate(1000000),
  38       start_bitrate(5000000),
  39       max_qp(kDefaultMaxQp),
  40       min_qp(kDefaultMinQp),
  41       max_frame_rate(kDefaultMaxFrameRate),
  42       max_number_of_video_buffers_used(kDefaultNumberOfVideoBuffers),
  43       codec(CODEC_VIDEO_VP8),
  44       number_of_encode_threads(1) {}
  45
  46 VideoSenderConfig::~VideoSenderConfig() {}
  47
  48 AudioSenderConfig::AudioSenderConfig()
  49     : ssrc(0),
  50       incoming_feedback_ssrc(0),
  51       rtcp_interval(kDefaultRtcpIntervalMs),
  52       rtcp_mode(kRtcpReducedSize),
  53       target_playout_delay(
  54           base::TimeDelta::FromMilliseconds(kDefaultRtpMaxDelayMs)),
  55       rtp_payload_type(0),
  56       use_external_encoder(false),
  57       frequency(0),
  58       channels(0),
  59       bitrate(0),
  60       codec(CODEC_AUDIO_OPUS) {}
  61
  62 AudioSenderConfig::~AudioSenderConfig() {}
  63
  64 FrameReceiverConfig::FrameReceiverConfig()
  65     : feedback_ssrc(0),
  66       incoming_ssrc(0),
  67       rtcp_interval(kDefaultRtcpIntervalMs),
  68       rtcp_mode(kRtcpReducedSize),
  69       rtp_max_delay_ms(kDefaultRtpMaxDelayMs),
  70       rtp_payload_type(0),
  71       frequency(0),
  72       channels(0),
  73       max_frame_rate(0),
  74       codec(CODEC_UNKNOWN) {}
  75
  76 FrameReceiverConfig::~FrameReceiverConfig() {}
  77
  78 }  // namespace cast
  79 }  // namespace media