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1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ |
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3 /* This Source Code Form is subject to the terms of the Mozilla Public |
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4 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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6 |
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7 #if !defined(DirectShowDecoder_h_) |
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8 #define DirectShowDecoder_h_ |
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9 |
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10 #include "MediaDecoder.h" |
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11 |
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12 namespace mozilla { |
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13 |
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14 // Decoder that uses DirectShow to playback MP3 files only. |
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15 class DirectShowDecoder : public MediaDecoder |
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16 { |
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17 public: |
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18 |
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19 DirectShowDecoder(); |
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20 virtual ~DirectShowDecoder(); |
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21 |
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22 MediaDecoder* Clone() MOZ_OVERRIDE { |
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23 if (!IsEnabled()) { |
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24 return nullptr; |
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25 } |
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26 return new DirectShowDecoder(); |
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27 } |
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28 |
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29 MediaDecoderStateMachine* CreateStateMachine() MOZ_OVERRIDE; |
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30 |
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31 // Returns true if aType is a MIME type that we render with the |
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32 // DirectShow backend. If aCodecList is non null, |
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33 // it is filled with a (static const) null-terminated list of strings |
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34 // denoting the codecs we'll playback. Note that playback is strictly |
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35 // limited to MP3 only. |
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36 static bool GetSupportedCodecs(const nsACString& aType, |
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37 char const *const ** aCodecList); |
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38 |
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39 // Returns true if the DirectShow backend is preffed on. |
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40 static bool IsEnabled(); |
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41 }; |
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42 |
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43 } // namespace mozilla |
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44 |
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45 #endif |