src/ppapi/proxy/media_stream_track_resource_base.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/proxy/media_stream_track_resource_base.h"
   6
   7 #include "base/logging.h"
   8 #include "ppapi/proxy/ppapi_messages.h"
   9
  10 namespace ppapi {
  11 namespace proxy {
  12
  13 MediaStreamTrackResourceBase::MediaStreamTrackResourceBase(
  14     Connection connection,
  15     PP_Instance instance,
  16     int pending_renderer_id,
  17     const std::string& id)
  18     : PluginResource(connection, instance),
  19       buffer_manager_(this),
  20       id_(id),
  21       has_ended_(false) {
  22   AttachToPendingHost(RENDERER, pending_renderer_id);
  23 }
  24
  25 MediaStreamTrackResourceBase::MediaStreamTrackResourceBase(
  26     Connection connection,
  27     PP_Instance instance)
  28     : PluginResource(connection, instance),
  29       buffer_manager_(this),
  30       has_ended_(false) {
  31 }
  32
  33 MediaStreamTrackResourceBase::~MediaStreamTrackResourceBase() {
  34 }
  35
  36 void MediaStreamTrackResourceBase::SendEnqueueBufferMessageToHost(
  37     int32_t index) {
  38   DCHECK_GE(index, 0);
  39   DCHECK_LT(index, buffer_manager()->number_of_buffers());
  40   Post(RENDERER, PpapiHostMsg_MediaStreamTrack_EnqueueBuffer(index));
  41 }
  42
  43 void MediaStreamTrackResourceBase::OnReplyReceived(
  44     const ResourceMessageReplyParams& params,
  45     const IPC::Message& msg) {
  46   IPC_BEGIN_MESSAGE_MAP(MediaStreamTrackResourceBase, msg)
  47     PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL(
  48         PpapiPluginMsg_MediaStreamTrack_InitBuffers, OnPluginMsgInitBuffers)
  49     PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL(
  50         PpapiPluginMsg_MediaStreamTrack_EnqueueBuffer, OnPluginMsgEnqueueBuffer)
  51     PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL(
  52         PpapiPluginMsg_MediaStreamTrack_EnqueueBuffers,
  53         OnPluginMsgEnqueueBuffers)
  54     PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL_UNHANDLED(
  55         PluginResource::OnReplyReceived(params, msg))
  56   IPC_END_MESSAGE_MAP()
  57 }
  58
  59 void MediaStreamTrackResourceBase::CloseInternal() {
  60   if (!has_ended_) {
  61     Post(RENDERER, PpapiHostMsg_MediaStreamTrack_Close());
  62     has_ended_ = true;
  63   }
  64 }
  65
  66 void MediaStreamTrackResourceBase::OnPluginMsgInitBuffers(
  67     const ResourceMessageReplyParams& params,
  68     int32_t number_of_buffers,
  69     int32_t buffer_size,
  70     bool readonly) {
  71   base::SharedMemoryHandle shm_handle = base::SharedMemory::NULLHandle();
  72   params.TakeSharedMemoryHandleAtIndex(0, &shm_handle);
  73   buffer_manager_.SetBuffers(number_of_buffers, buffer_size,
  74       scoped_ptr<base::SharedMemory>(new base::SharedMemory(shm_handle,
  75                                                             readonly)),
  76       false);
  77 }
  78
  79 void MediaStreamTrackResourceBase::OnPluginMsgEnqueueBuffer(
  80     const ResourceMessageReplyParams& params,
  81     int32_t index) {
  82   buffer_manager_.EnqueueBuffer(index);
  83 }
  84
  85 void MediaStreamTrackResourceBase::OnPluginMsgEnqueueBuffers(
  86     const ResourceMessageReplyParams& params,
  87     const std::vector<int32_t>& indices) {
  88   for (size_t i = 0; i < indices.size(); ++i)
  89     buffer_manager_.EnqueueBuffer(indices[i]);
  90 }
  91
  92 }  // namespace proxy
  93 }  // namespace ppapi