The Tor Browser / file comparison
comparison: content/media/webrtc/MediaTrackConstraints.h
content/media/webrtc/MediaTrackConstraints.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:ca008b30b6b6 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 // This file should not be included by other includes, as it contains code | |
| 6 | |
| 7 #ifndef MEDIATRACKCONSTRAINTS_H_ | |
| 8 #define MEDIATRACKCONSTRAINTS_H_ | |
| 9 | |
| 10 #include "mozilla/dom/MediaStreamTrackBinding.h" | |
| 11 | |
| 12 namespace mozilla { | |
| 13 | |
| 14 // Normalized internal version of MediaTrackConstraints to simplify downstream | |
| 15 // processing. This implementation-only helper is included as needed by both | |
| 16 // MediaManager (for gUM camera selection) and MediaEngine (for applyConstraints). | |
| 17 | |
| 18 template<typename T> | |
| 19 class MediaTrackConstraintsN : public dom::MediaTrackConstraints | |
| 20 { | |
| 21 public: | |
| 22 typedef T Kind; | |
| 23 dom::Sequence<Kind> mRequireN; | |
| 24 bool mUnsupportedRequirement; | |
| 25 MediaTrackConstraintSet mRequired; | |
| 26 dom::Sequence<MediaTrackConstraintSet> mNonrequired; | |
| 27 | |
| 28 MediaTrackConstraintsN(const dom::MediaTrackConstraints &aOther, | |
| 29 const dom::EnumEntry* aStrings) | |
| 30 : dom::MediaTrackConstraints(aOther) | |
| 31 , mUnsupportedRequirement(false) | |
| 32 , mStrings(aStrings) | |
| 33 { | |
| 34 if (mRequire.WasPassed()) { | |
| 35 auto& array = mRequire.Value(); | |
| 36 for (uint32_t i = 0; i < array.Length(); i++) { | |
| 37 auto value = ToEnum(array[i]); | |
| 38 if (value != Kind::Other) { | |
| 39 mRequireN.AppendElement(value); | |
| 40 } else { | |
| 41 mUnsupportedRequirement = true; | |
| 42 } | |
| 43 } | |
| 44 } | |
| 45 } | |
| 46 protected: | |
| 47 MediaTrackConstraintSet& Triage(const Kind kind) { | |
| 48 if (mRequireN.IndexOf(kind) != mRequireN.NoIndex) { | |
| 49 return mRequired; | |
| 50 } else { | |
| 51 mNonrequired.AppendElement(MediaTrackConstraintSet()); | |
| 52 return mNonrequired[mNonrequired.Length()-1]; | |
| 53 } | |
| 54 } | |
| 55 private: | |
| 56 Kind ToEnum(const nsAString& aSrc) { | |
| 57 for (size_t i = 0; mStrings[i].value; i++) { | |
| 58 if (aSrc.EqualsASCII(mStrings[i].value)) { | |
| 59 return Kind(i); | |
| 60 } | |
| 61 } | |
| 62 return Kind::Other; | |
| 63 } | |
| 64 const dom::EnumEntry* mStrings; | |
| 65 }; | |
| 66 | |
| 67 struct AudioTrackConstraintsN : | |
| 68 public MediaTrackConstraintsN<dom::SupportedAudioConstraints> | |
| 69 { | |
| 70 AudioTrackConstraintsN(const dom::MediaTrackConstraints &aOther) | |
| 71 : MediaTrackConstraintsN<dom::SupportedAudioConstraints>(aOther, // B2G ICS compiler bug | |
| 72 dom::SupportedAudioConstraintsValues::strings) {} | |
| 73 }; | |
| 74 | |
| 75 struct VideoTrackConstraintsN : | |
| 76 public MediaTrackConstraintsN<dom::SupportedVideoConstraints> | |
| 77 { | |
| 78 VideoTrackConstraintsN(const dom::MediaTrackConstraints &aOther) | |
| 79 : MediaTrackConstraintsN<dom::SupportedVideoConstraints>(aOther, | |
| 80 dom::SupportedVideoConstraintsValues::strings) { | |
| 81 if (mFacingMode.WasPassed()) { | |
| 82 Triage(Kind::FacingMode).mFacingMode.Construct(mFacingMode.Value()); | |
| 83 } | |
| 84 // Reminder: add handling for new constraints both here & SatisfyConstraintSet | |
| 85 Triage(Kind::Width).mWidth = mWidth; | |
| 86 Triage(Kind::Height).mHeight = mHeight; | |
| 87 Triage(Kind::FrameRate).mFrameRate = mFrameRate; | |
| 88 } | |
| 89 }; | |
| 90 | |
| 91 } | |
| 92 | |
| 93 #endif /* MEDIATRACKCONSTRAINTS_H_ */ |
