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Mercurial (fddffdeab170)

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#if !defined(WMFPlatformDecoderModule_h_)
#define WMFPlatformDecoderModule_h_

#include "PlatformDecoderModule.h"

namespace mozilla {

class WMFDecoderModule : public PlatformDecoderModule {
public:
  WMFDecoderModule();
  virtual ~WMFDecoderModule();

  // Initializes the module, loads required dynamic libraries, etc.
  nsresult Startup() override;

  already_AddRefed<MediaDataDecoder>
  CreateVideoDecoder(const VideoInfo& aConfig,
                     layers::LayersBackend aLayersBackend,
                     layers::ImageContainer* aImageContainer,
                     FlushableTaskQueue* aVideoTaskQueue,
                     MediaDataDecoderCallback* aCallback) override;

  already_AddRefed<MediaDataDecoder>
  CreateAudioDecoder(const AudioInfo& aConfig,
                     FlushableTaskQueue* aAudioTaskQueue,
                     MediaDataDecoderCallback* aCallback) override;

  bool SupportsMimeType(const nsACString& aMimeType) override;

  ConversionRequired
  DecoderNeedsConversion(const TrackInfo& aConfig) const override;

  // Called on main thread.
  static void Init();

  // Called from any thread, must call init first
  static int GetNumDecoderThreads();
  static bool LowLatencyMFTEnabled();

  // Accessors that report whether we have the required MFTs available
  // on the system to play various codecs. Windows Vista doesn't have the
  // H.264/AAC decoders if the "Platform Update Supplement for Windows Vista"
  // is not installed, and Window N and KN variants also require a "Media
  // Feature Pack" to be installed. Windows XP doesn't have WMF.
  static bool HasAAC();
  static bool HasH264();

private:
  bool mWMFInitialized;
};

} // namespace mozilla

#endif