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 "content/common/media/video_capture_messages.h"
   9 #include "ipc/ipc_message_utils.h"
  10 #include "media/audio/audio_parameters.h"
  11 #include "media/base/limits.h"
  12 #include "ui/gfx/ipc/gfx_param_traits.h"
  13
  14 using media::AudioParameters;
  15 using media::ChannelLayout;
  16 using media::VideoCaptureFormat;
  17
  18 namespace IPC {
  19
  20 void ParamTraits<AudioParameters>::Write(Message* m,
  21                                          const AudioParameters& p) {
  22   m->WriteInt(static_cast<int>(p.format()));
  23   m->WriteInt(static_cast<int>(p.channel_layout()));
  24   m->WriteInt(p.sample_rate());
  25   m->WriteInt(p.bits_per_sample());
  26   m->WriteInt(p.frames_per_buffer());
  27   m->WriteInt(p.channels());
  28   m->WriteInt(p.effects());
  29 }
  30
  31 bool ParamTraits<AudioParameters>::Read(const Message* m,
  32                                         base::PickleIterator* iter,
  33                                         AudioParameters* r) {
  34   int format, channel_layout, sample_rate, bits_per_sample,
  35       frames_per_buffer, channels, effects;
  36
  37   if (!iter->ReadInt(&format) ||
  38       !iter->ReadInt(&channel_layout) ||
  39       !iter->ReadInt(&sample_rate) ||
  40       !iter->ReadInt(&bits_per_sample) ||
  41       !iter->ReadInt(&frames_per_buffer) ||
  42       !iter->ReadInt(&channels) ||
  43       !iter->ReadInt(&effects)) {
  44     return false;
  45   }
  46
  47   AudioParameters params(static_cast<AudioParameters::Format>(format),
  48          static_cast<ChannelLayout>(channel_layout), channels,
  49          sample_rate, bits_per_sample, frames_per_buffer, effects);
  50   *r = params;
  51   return r->IsValid();
  52 }
  53
  54 void ParamTraits<AudioParameters>::Log(const AudioParameters& p,
  55                                        std::string* l) {
  56   l->append(base::StringPrintf("<AudioParameters>"));
  57 }
  58
  59 void ParamTraits<VideoCaptureFormat>::Write(Message* m,
  60                                             const VideoCaptureFormat& p) {
  61   WriteParam(m, p.frame_size);
  62   WriteParam(m, p.frame_rate);
  63   WriteParam(m, p.pixel_format);
  64   WriteParam(m, p.pixel_storage);
  65 }
  66
  67 bool ParamTraits<VideoCaptureFormat>::Read(const Message* m,
  68                                            base::PickleIterator* iter,
  69                                            VideoCaptureFormat* r) {
  70   if (!ReadParam(m, iter, &r->frame_size) ||
  71       !ReadParam(m, iter, &r->frame_rate) ||
  72       !ReadParam(m, iter, &r->pixel_format) ||
  73       !ReadParam(m, iter, &r->pixel_storage)) {
  74     return false;
  75   }
  76   return r->IsValid();
  77 }
  78
  79 void ParamTraits<VideoCaptureFormat>::Log(const VideoCaptureFormat& p,
  80                                           std::string* l) {
  81   l->append(
  82       base::StringPrintf("<VideoCaptureFormat> %s", p.ToString().c_str()));
  83 }
  84
  85 }