media/renderers/decrypting_renderer_factory.h

   1 // Copyright 2019 The Chromium Authors
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MEDIA_RENDERERS_DECRYPTING_RENDERER_FACTORY_H_
   6 #define MEDIA_RENDERERS_DECRYPTING_RENDERER_FACTORY_H_
   7
   8 #include "base/functional/callback.h"
   9 #include "base/memory/raw_ptr.h"
  10 #include "base/task/sequenced_task_runner.h"
  11 #include "media/base/media_export.h"
  12 #include "media/base/renderer_factory.h"
  13
  14 namespace media {
  15
  16 class MediaLog;
  17
  18 // Simple RendererFactory wrapper class. It wraps any Renderer created by the
  19 // underlying factory, and returns it as a DecryptingRenderer.
  20 //
  21 // See DecryptingRenderer for more information.
  22 //
  23 // The caller must guarantee that the returned DecryptingRenderer will never
  24 // be initialized with a |media_resource| of type MediaResource::Type::URL.
  25 class MEDIA_EXPORT DecryptingRendererFactory final : public RendererFactory {
  26  public:
  27   DecryptingRendererFactory(
  28       MediaLog* media_log,
  29       std::unique_ptr<media::RendererFactory> renderer_factory);
  30
  31   DecryptingRendererFactory(const DecryptingRendererFactory&) = delete;
  32   DecryptingRendererFactory& operator=(const DecryptingRendererFactory&) =
  33       delete;
  34
  35   ~DecryptingRendererFactory() final;
  36
  37   // RendererFactory implementation.
  38   std::unique_ptr<Renderer> CreateRenderer(
  39       const scoped_refptr<base::SequencedTaskRunner>& media_task_runner,
  40       const scoped_refptr<base::TaskRunner>& worker_task_runner,
  41       AudioRendererSink* audio_renderer_sink,
  42       VideoRendererSink* video_renderer_sink,
  43       RequestOverlayInfoCB request_overlay_info_cb,
  44       const gfx::ColorSpace& target_color_space) final;
  45
  46  private:
  47   raw_ptr<MediaLog> media_log_;
  48
  49   std::unique_ptr<media::RendererFactory> renderer_factory_;
  50 };
  51
  52 }  // namespace media
  53
  54 #endif  // MEDIA_RENDERERS_DECRYPTING_RENDERER_FACTORY_H_