content/renderer/media/rtc_video_decoder_factory.cc

   1 // Copyright 2013 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/renderer/media/rtc_video_decoder_factory.h"
   6
   7 #include "base/location.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "content/renderer/media/renderer_gpu_video_accelerator_factories.h"
  10 #include "content/renderer/media/rtc_video_decoder.h"
  11
  12 namespace content {
  13
  14 RTCVideoDecoderFactory::RTCVideoDecoderFactory(
  15     const scoped_refptr<RendererGpuVideoAcceleratorFactories>& gpu_factories)
  16     : gpu_factories_(gpu_factories) {
  17   DVLOG(2) << "RTCVideoDecoderFactory";
  18 }
  19
  20 RTCVideoDecoderFactory::~RTCVideoDecoderFactory() {
  21   DVLOG(2) << "~RTCVideoDecoderFactory";
  22 }
  23
  24 webrtc::VideoDecoder* RTCVideoDecoderFactory::CreateVideoDecoder(
  25     webrtc::VideoCodecType type) {
  26   DVLOG(2) << "CreateVideoDecoder";
  27   // GpuVideoAcceleratorFactories is not thread safe. It cannot be shared
  28   // by different decoders. This method runs on Chrome_libJingle_WorkerThread
  29   // and the child thread is blocked while this runs. We cannot create new gpu
  30   // factories here. Clone one instead.
  31   scoped_ptr<RTCVideoDecoder> decoder =
  32       RTCVideoDecoder::Create(type, gpu_factories_->Clone());
  33   return decoder.release();
  34 }
  35
  36 void RTCVideoDecoderFactory::DestroyVideoDecoder(
  37     webrtc::VideoDecoder* decoder) {
  38   DVLOG(2) << "DestroyVideoDecoder";
  39   gpu_factories_->GetTaskRunner()->DeleteSoon(FROM_HERE, decoder);
  40 }
  41
  42 }  // namespace content