| // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "content/renderer/pepper/pepper_video_destination_host.h" |
| |
| #include "base/time/time.h" |
| #include "content/public/renderer/renderer_ppapi_host.h" |
| #include "content/renderer/pepper/ppb_image_data_impl.h" |
| #include "ppapi/c/pp_errors.h" |
| #include "ppapi/host/dispatch_host_message.h" |
| #include "ppapi/host/host_message_context.h" |
| #include "ppapi/host/ppapi_host.h" |
| #include "ppapi/proxy/ppapi_messages.h" |
| #include "ppapi/thunk/enter.h" |
| #include "ppapi/thunk/ppb_image_data_api.h" |
| |
| using ppapi::host::HostMessageContext; |
| using ppapi::host::ReplyMessageContext; |
| |
| namespace content { |
| |
| PepperVideoDestinationHost::PepperVideoDestinationHost(RendererPpapiHost* host, |
| PP_Instance instance, |
| PP_Resource resource) |
| : ResourceHost(host->GetPpapiHost(), instance, resource), |
| renderer_ppapi_host_(host), |
| weak_factory_(this) {} |
| |
| PepperVideoDestinationHost::~PepperVideoDestinationHost() {} |
| |
| int32_t PepperVideoDestinationHost::OnResourceMessageReceived( |
| const IPC::Message& msg, |
| HostMessageContext* context) { |
| PPAPI_BEGIN_MESSAGE_MAP(PepperVideoDestinationHost, msg) |
| PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_VideoDestination_Open, |
| OnHostMsgOpen) |
| PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_VideoDestination_PutFrame, |
| OnHostMsgPutFrame) |
| PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_VideoDestination_Close, |
| OnHostMsgClose) |
| PPAPI_END_MESSAGE_MAP() |
| return PP_ERROR_FAILED; |
| } |
| |
| int32_t PepperVideoDestinationHost::OnHostMsgOpen( |
| HostMessageContext* context, |
| const std::string& stream_url) { |
| GURL gurl(stream_url); |
| if (!gurl.is_valid()) |
| return PP_ERROR_BADARGUMENT; |
| |
| FrameWriterInterface* frame_writer = NULL; |
| if (!VideoDestinationHandler::Open( |
| NULL /* registry */, gurl.spec(), &frame_writer)) |
| return PP_ERROR_FAILED; |
| frame_writer_.reset(frame_writer); |
| |
| ReplyMessageContext reply_context = context->MakeReplyMessageContext(); |
| reply_context.params.set_result(PP_OK); |
| host()->SendReply(reply_context, PpapiPluginMsg_VideoDestination_OpenReply()); |
| return PP_OK_COMPLETIONPENDING; |
| } |
| |
| int32_t PepperVideoDestinationHost::OnHostMsgPutFrame( |
| HostMessageContext* context, |
| const ppapi::HostResource& image_data_resource, |
| PP_TimeTicks timestamp) { |
| ppapi::thunk::EnterResourceNoLock<ppapi::thunk::PPB_ImageData_API> enter( |
| image_data_resource.host_resource(), true); |
| if (enter.failed()) |
| return PP_ERROR_BADRESOURCE; |
| PPB_ImageData_Impl* image_data_impl = |
| static_cast<PPB_ImageData_Impl*>(enter.object()); |
| |
| if (!PPB_ImageData_Impl::IsImageDataFormatSupported( |
| image_data_impl->format())) |
| return PP_ERROR_BADARGUMENT; |
| |
| if (!frame_writer_.get()) |
| return PP_ERROR_FAILED; |
| |
| // Convert PP_TimeTicks (a double, in seconds) to a TimeDelta (int64, |
| // microseconds) and then to a video timestamp (int64, nanoseconds). All times |
| // are relative to the Unix Epoch so don't subtract it to get a delta. |
| base::TimeDelta time_delta = |
| base::Time::FromDoubleT(timestamp) - base::Time(); |
| int64_t timestamp_ns = |
| time_delta.InMicroseconds() * base::Time::kNanosecondsPerMicrosecond; |
| frame_writer_->PutFrame(image_data_impl, timestamp_ns); |
| |
| return PP_OK; |
| } |
| |
| int32_t PepperVideoDestinationHost::OnHostMsgClose( |
| HostMessageContext* context) { |
| frame_writer_.reset(NULL); |
| return PP_OK; |
| } |
| |
| } // namespace content |