michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:set ts=2 sw=2 sts=2 et cindent: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #if !defined(DirectShowDecoder_h_)
michael@0: #define DirectShowDecoder_h_
michael@0: 
michael@0: #include "MediaDecoder.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: // Decoder that uses DirectShow to playback MP3 files only.
michael@0: class DirectShowDecoder : public MediaDecoder
michael@0: {
michael@0: public:
michael@0: 
michael@0:   DirectShowDecoder();
michael@0:   virtual ~DirectShowDecoder();
michael@0: 
michael@0:   MediaDecoder* Clone() MOZ_OVERRIDE {
michael@0:     if (!IsEnabled()) {
michael@0:       return nullptr;
michael@0:     }
michael@0:     return new DirectShowDecoder();
michael@0:   }
michael@0: 
michael@0:   MediaDecoderStateMachine* CreateStateMachine() MOZ_OVERRIDE;
michael@0: 
michael@0:   // Returns true if aType is a MIME type that we render with the
michael@0:   // DirectShow backend. If aCodecList is non null,
michael@0:   // it is filled with a (static const) null-terminated list of strings
michael@0:   // denoting the codecs we'll playback. Note that playback is strictly
michael@0:   // limited to MP3 only.
michael@0:   static bool GetSupportedCodecs(const nsACString& aType,
michael@0:                                  char const *const ** aCodecList);
michael@0: 
michael@0:   // Returns true if the DirectShow backend is preffed on.
michael@0:   static bool IsEnabled();
michael@0: };
michael@0: 
michael@0: } // namespace mozilla
michael@0: 
michael@0: #endif