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       receiver_ssrc(0),
  27       max_playout_delay(
  28           base::TimeDelta::FromMilliseconds(kDefaultRtpMaxDelayMs)),
  29       rtp_payload_type(0),
  30       use_external_encoder(false),
  31       congestion_control_back_off(kDefaultCongestionControlBackOff),
  32       max_bitrate(5000000),
  33       min_bitrate(1000000),
  34       start_bitrate(5000000),
  35       max_qp(kDefaultMaxQp),
  36       min_qp(kDefaultMinQp),
  37       max_frame_rate(kDefaultMaxFrameRate),
  38       max_number_of_video_buffers_used(kDefaultNumberOfVideoBuffers),
  39       codec(CODEC_VIDEO_VP8),
  40       number_of_encode_threads(1) {}
  41
  42 VideoSenderConfig::~VideoSenderConfig() {}
  43
  44 AudioSenderConfig::AudioSenderConfig()
  45     : ssrc(0),
  46       receiver_ssrc(0),
  47       max_playout_delay(
  48           base::TimeDelta::FromMilliseconds(kDefaultRtpMaxDelayMs)),
  49       rtp_payload_type(0),
  50       use_external_encoder(false),
  51       frequency(0),
  52       channels(0),
  53       bitrate(0),
  54       codec(CODEC_AUDIO_OPUS) {}
  55
  56 AudioSenderConfig::~AudioSenderConfig() {}
  57
  58 FrameReceiverConfig::FrameReceiverConfig()
  59     : receiver_ssrc(0),
  60       sender_ssrc(0),
  61       rtp_max_delay_ms(kDefaultRtpMaxDelayMs),
  62       rtp_payload_type(0),
  63       rtp_timebase(0),
  64       channels(0),
  65       target_frame_rate(0),
  66       codec(CODEC_UNKNOWN) {}
  67
  68 FrameReceiverConfig::~FrameReceiverConfig() {}
  69
  70 }  // namespace cast
  71 }  // namespace media