src/content/common/media/media_param_traits.cc

   1 // Copyright (c) 2012 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 "content/common/media/media_param_traits.h"
   6
   7 #include "base/strings/stringprintf.h"
   8 #include "media/audio/audio_parameters.h"
   9 #include "media/base/limits.h"
  10 #include "media/video/capture/video_capture_types.h"
  11
  12 using media::AudioParameters;
  13 using media::ChannelLayout;
  14 using media::VideoCaptureFormat;
  15 using media::VideoPixelFormat;
  16
  17 namespace IPC {
  18
  19 void ParamTraits<AudioParameters>::Write(Message* m,
  20                                          const AudioParameters& p) {
  21   m->WriteInt(static_cast<int>(p.format()));
  22   m->WriteInt(static_cast<int>(p.channel_layout()));
  23   m->WriteInt(p.sample_rate());
  24   m->WriteInt(p.bits_per_sample());
  25   m->WriteInt(p.frames_per_buffer());
  26   m->WriteInt(p.channels());
  27   m->WriteInt(p.input_channels());
  28   m->WriteInt(p.effects());
  29 }
  30
  31 bool ParamTraits<AudioParameters>::Read(const Message* m,
  32                                         PickleIterator* iter,
  33                                         AudioParameters* r) {
  34   int format, channel_layout, sample_rate, bits_per_sample,
  35       frames_per_buffer, channels, input_channels, effects;
  36
  37   if (!m->ReadInt(iter, &format) ||
  38       !m->ReadInt(iter, &channel_layout) ||
  39       !m->ReadInt(iter, &sample_rate) ||
  40       !m->ReadInt(iter, &bits_per_sample) ||
  41       !m->ReadInt(iter, &frames_per_buffer) ||
  42       !m->ReadInt(iter, &channels) ||
  43       !m->ReadInt(iter, &input_channels) ||
  44       !m->ReadInt(iter, &effects))
  45     return false;
  46   AudioParameters params(static_cast<AudioParameters::Format>(format),
  47          static_cast<ChannelLayout>(channel_layout), channels,
  48          input_channels, sample_rate, bits_per_sample, frames_per_buffer,
  49          effects);
  50   *r = params;
  51   if (!r->IsValid())
  52     return false;
  53   return true;
  54 }
  55
  56 void ParamTraits<AudioParameters>::Log(const AudioParameters& p,
  57                                        std::string* l) {
  58   l->append(base::StringPrintf("<AudioParameters>"));
  59 }
  60
  61 void ParamTraits<VideoCaptureFormat>::Write(Message* m,
  62                                             const VideoCaptureFormat& p) {
  63   // Crash during Send rather than have a failure at the message handler.
  64   m->WriteInt(p.frame_size.width());
  65   m->WriteInt(p.frame_size.height());
  66   m->WriteInt(p.frame_rate);
  67   m->WriteInt(static_cast<int>(p.pixel_format));
  68 }
  69
  70 bool ParamTraits<VideoCaptureFormat>::Read(const Message* m,
  71                                            PickleIterator* iter,
  72                                            VideoCaptureFormat* r) {
  73   int frame_size_width, frame_size_height, pixel_format;
  74   if (!m->ReadInt(iter, &frame_size_width) ||
  75       !m->ReadInt(iter, &frame_size_height) ||
  76       !m->ReadInt(iter, &r->frame_rate) ||
  77       !m->ReadInt(iter, &pixel_format))
  78     return false;
  79
  80   r->frame_size.SetSize(frame_size_width, frame_size_height);
  81   r->pixel_format = static_cast<VideoPixelFormat>(pixel_format);
  82   if (!r->IsValid())
  83     return false;
  84   return true;
  85 }
  86
  87 void ParamTraits<VideoCaptureFormat>::Log(const VideoCaptureFormat& p,
  88                                           std::string* l) {
  89   l->append(base::StringPrintf("<VideoCaptureFormat>"));
  90 }
  91
  92 }