The Tor Browser: content/media/directshow/DirectShowDecoder.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim:set ts=2 sw=2 sts=2 et cindent: */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #if !defined(DirectShowDecoder_h_)

     8 #define DirectShowDecoder_h_

    10 #include "MediaDecoder.h"

    12 namespace mozilla {

    14 // Decoder that uses DirectShow to playback MP3 files only.

    15 class DirectShowDecoder : public MediaDecoder

    16 {

    17 public:

    19   DirectShowDecoder();

    20   virtual ~DirectShowDecoder();

    22   MediaDecoder* Clone() MOZ_OVERRIDE {

    23     if (!IsEnabled()) {

    24       return nullptr;

    25     }

    26     return new DirectShowDecoder();

    27   }

    29   MediaDecoderStateMachine* CreateStateMachine() MOZ_OVERRIDE;

    31   // Returns true if aType is a MIME type that we render with the

    32   // DirectShow backend. If aCodecList is non null,

    33   // it is filled with a (static const) null-terminated list of strings

    34   // denoting the codecs we'll playback. Note that playback is strictly

    35   // limited to MP3 only.

    36   static bool GetSupportedCodecs(const nsACString& aType,

    37                                  char const *const ** aCodecList);

    39   // Returns true if the DirectShow backend is preffed on.

    40   static bool IsEnabled();

    41 };

    43 } // namespace mozilla

    45 #endif

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