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The Tor Browser
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MediaEnginePrefs.h (2931B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      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 MediaEnginePrefs_h
      8 #define MediaEnginePrefs_h
      9 
     10 #include <stdint.h>
     11 #include <string.h>
     12 
     13 #include "mozilla/dom/MediaStreamTrackBinding.h"
     14 
     15 namespace mozilla {
     16 
     17 /**
     18 * Video source and friends.
     19 */
     20 class MediaEnginePrefs {
     21 public:
     22  static constexpr int DEFAULT_VIDEO_FPS = 30;
     23  static constexpr int DEFAULT_43_VIDEO_WIDTH = 640;
     24  static constexpr int DEFAULT_43_VIDEO_HEIGHT = 480;
     25  static constexpr int DEFAULT_169_VIDEO_WIDTH = 1280;
     26  static constexpr int DEFAULT_169_VIDEO_HEIGHT = 720;
     27 
     28  MediaEnginePrefs()
     29      : mWidth(0),
     30        mHeight(0),
     31        mResizeModeEnabled(false),
     32        mResizeMode(dom::VideoResizeModeEnum::None),
     33        mFPS(0),
     34        mFreq(0),
     35        mUsePlatformProcessing(false),
     36        mAecOn(false),
     37        mUseAecMobile(false),
     38        mAgcOn(false),
     39        mHPFOn(false),
     40        mNoiseOn(false),
     41        mTransientOn(false),
     42        mAgc2Forced(false),
     43        mExpectDrift(-1),  // auto
     44        mAgc(0),
     45        mNoise(0),
     46        mChannels(0) {}
     47 
     48  int32_t mWidth;
     49  int32_t mHeight;
     50  bool mResizeModeEnabled;
     51  dom::VideoResizeModeEnum mResizeMode;
     52  int32_t mFPS;
     53  int32_t mFreq;  // for test tones (fake:true)
     54  bool mUsePlatformProcessing;
     55  bool mAecOn;
     56  bool mUseAecMobile;
     57  bool mAgcOn;
     58  bool mHPFOn;
     59  bool mNoiseOn;
     60  bool mTransientOn;
     61  bool mAgc2Forced;
     62  int32_t mExpectDrift;
     63  int32_t mAgc;
     64  int32_t mNoise;
     65  int32_t mChannels;
     66 
     67  bool operator==(const MediaEnginePrefs& aRhs) {
     68    return memcmp(this, &aRhs, sizeof(MediaEnginePrefs)) == 0;
     69  };
     70 
     71  // mWidth and/or mHeight may be zero (=adaptive default), so use functions.
     72 
     73  int32_t GetWidth(bool aHD = false) const {
     74    return mWidth ? mWidth
     75                  : (mHeight ? (mHeight * GetDefWidth(aHD)) / GetDefHeight(aHD)
     76                             : GetDefWidth(aHD));
     77  }
     78 
     79  int32_t GetHeight(bool aHD = false) const {
     80    return mHeight ? mHeight
     81                   : (mWidth ? (mWidth * GetDefHeight(aHD)) / GetDefWidth(aHD)
     82                             : GetDefHeight(aHD));
     83  }
     84 
     85 private:
     86  static int32_t GetDefWidth(bool aHD = false) {
     87    // It'd be nice if we could use the ternary operator here, but we can't
     88    // because of bug 1002729.
     89    if (aHD) {
     90      return DEFAULT_169_VIDEO_WIDTH;
     91    }
     92 
     93    return DEFAULT_43_VIDEO_WIDTH;
     94  }
     95 
     96  static int32_t GetDefHeight(bool aHD = false) {
     97    // It'd be nice if we could use the ternary operator here, but we can't
     98    // because of bug 1002729.
     99    if (aHD) {
    100      return DEFAULT_169_VIDEO_HEIGHT;
    101    }
    102 
    103    return DEFAULT_43_VIDEO_HEIGHT;
    104  }
    105 };
    106 
    107 }  // namespace mozilla
    108 
    109 #endif  // MediaEnginePrefs_h