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_frame.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(uint32_t samples_per_frame,
  44                                          uint32_t frame_buffer_size) {
  45   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  46     return get_interface<PPB_MediaStreamAudioTrack_0_1>()->Configure(
  47         pp_resource(), samples_per_frame, frame_buffer_size);
  48   }
  49   return PP_ERROR_NOINTERFACE;
  50 }
  51
  52 std::string MediaStreamAudioTrack::GetId() const {
  53   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  54     pp::Var id(PASS_REF, get_interface<PPB_MediaStreamAudioTrack_0_1>()->GetId(
  55         pp_resource()));
  56     if (id.is_string())
  57       return id.AsString();
  58   }
  59   return std::string();
  60 }
  61
  62 bool MediaStreamAudioTrack::HasEnded() const {
  63   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  64     return PP_ToBool(get_interface<PPB_MediaStreamAudioTrack_0_1>()->HasEnded(
  65         pp_resource()));
  66   }
  67   return true;
  68 }
  69
  70 int32_t MediaStreamAudioTrack::GetFrame(
  71     const CompletionCallbackWithOutput<AudioFrame>& cc) {
  72   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  73     return get_interface<PPB_MediaStreamAudioTrack_0_1>()->GetFrame(
  74         pp_resource(), cc.output(), cc.pp_completion_callback());
  75   }
  76   return cc.MayForce(PP_ERROR_NOINTERFACE);
  77 }
  78
  79 int32_t MediaStreamAudioTrack::RecycleFrame(const AudioFrame& frame) {
  80   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  81     return get_interface<PPB_MediaStreamAudioTrack_0_1>()->RecycleFrame(
  82         pp_resource(), frame.pp_resource());
  83   }
  84   return PP_ERROR_NOINTERFACE;
  85 }
  86
  87 void MediaStreamAudioTrack::Close() {
  88   if (has_interface<PPB_MediaStreamAudioTrack_0_1>())
  89     get_interface<PPB_MediaStreamAudioTrack_0_1>()->Close(pp_resource());
  90 }
  91
  92 // static
  93 bool MediaStreamAudioTrack::IsMediaStreamAudioTrack(const Resource& resource) {
  94   if (has_interface<PPB_MediaStreamAudioTrack_0_1>()) {
  95     return PP_ToBool(get_interface<PPB_MediaStreamAudioTrack_0_1>()->
  96         IsMediaStreamAudioTrack(resource.pp_resource()));
  97   }
  98   return false;
  99 }
 100
 101 }  // namespace pp