ppapi/cpp/media_stream_audio_track.cc

   1 // Copyright 2014 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 "ppapi/cpp/media_stream_audio_track.h"
   6
   7 #include "ppapi/c/pp_errors.h"
   8 #include "ppapi/c/ppb_media_stream_audio_track.h"
   9 #include "ppapi/cpp/audio_buffer.h"
  10 #include "ppapi/cpp/completion_callback.h"
  11 #include "ppapi/cpp/module_impl.h"
  12 #include "ppapi/cpp/var.h"
  13
  14 namespace pp {
  15
  16 namespace {
  17
  18 template <> const char* interface_name<PPB_MediaStreamAudioTrack_0_1>() {
  19   return PPB_MEDIASTREAMAUDIOTRACK_INTERFACE_0_1;
  20 }
  21
  22 }  // namespace
  23
  24 MediaStreamAudioTrack::MediaStreamAudioTrack() {
  25 }
  26
  27 MediaStreamAudioTrack::MediaStreamAudioTrack(
  28     const MediaStreamAudioTrack& other) : Resource(other) {
  29 }
  30
  31 MediaStreamAudioTrack::MediaStreamAudioTrack(const Resource& resource)
  32     : Resource(resource) {
  33   PP_DCHECK(IsMediaStreamAudioTrack(resource));
  34 }
  35
  36 MediaStreamAudioTrack::MediaStreamAudioTrack(PassRef, PP_Resource resource)
  37     : Resource(PASS_REF, resource) {
  38 }
  39
  40 MediaStreamAudioTrack::~MediaStreamAudioTrack() {
  41 }
  42
  43 int32_t MediaStreamAudioTrack::Configure(
  44     const int32_t attributes[],
  45     const CompletionCallback& callback) {
  46   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  47     return get_interface<PPB_MediaStreamAudioTrack_0_1>()->Configure(
  48         pp_resource(), attributes, callback.pp_completion_callback());
  49   }
  50   return callback.MayForce(PP_ERROR_NOINTERFACE);
  51 }
  52
  53 int32_t MediaStreamAudioTrack::GetAttrib(PP_MediaStreamAudioTrack_Attrib attrib,
  54                                          int32_t* value) {
  55   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  56     return get_interface<PPB_MediaStreamAudioTrack_0_1>()->GetAttrib(
  57         pp_resource(), attrib, value);
  58   }
  59   return PP_ERROR_NOINTERFACE;
  60 }
  61
  62 std::string MediaStreamAudioTrack::GetId() const {
  63   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  64     pp::Var id(PASS_REF, get_interface<PPB_MediaStreamAudioTrack_0_1>()->GetId(
  65         pp_resource()));
  66     if (id.is_string())
  67       return id.AsString();
  68   }
  69   return std::string();
  70 }
  71
  72 bool MediaStreamAudioTrack::HasEnded() const {
  73   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  74     return PP_ToBool(get_interface<PPB_MediaStreamAudioTrack_0_1>()->HasEnded(
  75         pp_resource()));
  76   }
  77   return true;
  78 }
  79
  80 int32_t MediaStreamAudioTrack::GetBuffer(
  81     const CompletionCallbackWithOutput<AudioBuffer>& callback) {
  82   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  83     return get_interface<PPB_MediaStreamAudioTrack_0_1>()->GetBuffer(
  84         pp_resource(), callback.output(), callback.pp_completion_callback());
  85   }
  86   return callback.MayForce(PP_ERROR_NOINTERFACE);
  87 }
  88
  89 int32_t MediaStreamAudioTrack::RecycleBuffer(const AudioBuffer& buffer) {
  90   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  91     return get_interface<PPB_MediaStreamAudioTrack_0_1>()->RecycleBuffer(
  92         pp_resource(), buffer.pp_resource());
  93   }
  94   return PP_ERROR_NOINTERFACE;
  95 }
  96
  97 void MediaStreamAudioTrack::Close() {
  98   if (has_interface<PPB_MediaStreamAudioTrack_0_1>())
  99     get_interface<PPB_MediaStreamAudioTrack_0_1>()->Close(pp_resource());
 100 }
 101
 102 // static
 103 bool MediaStreamAudioTrack::IsMediaStreamAudioTrack(const Resource& resource) {
 104   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
 105     return PP_ToBool(get_interface<PPB_MediaStreamAudioTrack_0_1>()->
 106         IsMediaStreamAudioTrack(resource.pp_resource()));
 107   }
 108   return false;
 109 }
 110
 111 }  // namespace pp