The Tor Browser / file comparison
comparison: content/media/DecoderTraits.h
content/media/DecoderTraits.h
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:696fb9b7d9e4 |
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| 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/. */ | |
| 6 | |
| 7 #ifndef DecoderTraits_h_ | |
| 8 #define DecoderTraits_h_ | |
| 9 | |
| 10 #include "nsCOMPtr.h" | |
| 11 | |
| 12 class nsAString; | |
| 13 class nsACString; | |
| 14 | |
| 15 namespace mozilla { | |
| 16 | |
| 17 class AbstractMediaDecoder; | |
| 18 class MediaDecoder; | |
| 19 class MediaDecoderOwner; | |
| 20 class MediaDecoderReader; | |
| 21 | |
| 22 enum CanPlayStatus { | |
| 23 CANPLAY_NO, | |
| 24 CANPLAY_MAYBE, | |
| 25 CANPLAY_YES | |
| 26 }; | |
| 27 | |
| 28 class DecoderTraits { | |
| 29 public: | |
| 30 // Returns the CanPlayStatus indicating if we can handle this | |
| 31 // MIME type. The MIME type should not include the codecs parameter. | |
| 32 // That parameter should be passed in aCodecs, and will only be | |
| 33 // used if whether a given MIME type being handled depends on the | |
| 34 // codec that will be used. If the codecs parameter has not been | |
| 35 // specified, pass false in aHaveRequestedCodecs. | |
| 36 static CanPlayStatus CanHandleMediaType(const char* aMIMEType, | |
| 37 bool aHaveRequestedCodecs, | |
| 38 const nsAString& aRequestedCodecs); | |
| 39 | |
| 40 // Returns true if we should handle this MIME type when it appears | |
| 41 // as an <object> or as a toplevel page. If, in practice, our support | |
| 42 // for the type is more limited than appears in the wild, we should return | |
| 43 // false here even if CanHandleMediaType would return true. | |
| 44 static bool ShouldHandleMediaType(const char* aMIMEType); | |
| 45 | |
| 46 // Create a decoder for the given aType. Returns null if we | |
| 47 // were unable to create the decoder. | |
| 48 static already_AddRefed<MediaDecoder> CreateDecoder(const nsACString& aType, | |
| 49 MediaDecoderOwner* aOwner); | |
| 50 | |
| 51 // Create a reader for thew given MIME type aType. Returns null | |
| 52 // if we were unable to create the reader. | |
| 53 static MediaDecoderReader* CreateReader(const nsACString& aType, | |
| 54 AbstractMediaDecoder* aDecoder); | |
| 55 | |
| 56 // Returns true if MIME type aType is supported in video documents, | |
| 57 // or false otherwise. Not all platforms support all MIME types, and | |
| 58 // vice versa. | |
| 59 static bool IsSupportedInVideoDocument(const nsACString& aType); | |
| 60 | |
| 61 // Returns true if we should not start decoder until we receive | |
| 62 // OnConnected signal. (currently RTSP only) | |
| 63 static bool DecoderWaitsForOnConnected(const nsACString& aType); | |
| 64 }; | |
| 65 | |
| 66 } | |
| 67 | |
| 68 #endif | |
| 69 |
