/usr/include/thunderbird/VideoSegment.h is in thunderbird-dev 1:24.4.0+build1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef MOZILLA_VIDEOSEGMENT_H_
#define MOZILLA_VIDEOSEGMENT_H_
#include "MediaSegment.h"
#include "nsCOMPtr.h"
#include "gfxPoint.h"
#include "nsAutoPtr.h"
#include "ImageContainer.h"
namespace mozilla {
namespace layers {
class Image;
}
class VideoFrame {
public:
typedef mozilla::layers::Image Image;
VideoFrame(already_AddRefed<Image> aImage, const gfxIntSize& aIntrinsicSize);
VideoFrame();
~VideoFrame();
bool operator==(const VideoFrame& aFrame) const
{
return mIntrinsicSize == aFrame.mIntrinsicSize &&
mForceBlack == aFrame.mForceBlack &&
((mForceBlack && aFrame.mForceBlack) || mImage == aFrame.mImage);
}
bool operator!=(const VideoFrame& aFrame) const
{
return !operator==(aFrame);
}
Image* GetImage() const { return mImage; }
void SetForceBlack(bool aForceBlack) { mForceBlack = true; }
bool GetForceBlack() const { return mForceBlack; }
const gfxIntSize& GetIntrinsicSize() const { return mIntrinsicSize; }
void SetNull();
void TakeFrom(VideoFrame* aFrame);
protected:
// mImage can be null to indicate "no video" (aka "empty frame"). It can
// still have an intrinsic size in this case.
nsRefPtr<Image> mImage;
// The desired size to render the video frame at.
gfxIntSize mIntrinsicSize;
bool mForceBlack;
};
struct VideoChunk {
VideoChunk();
~VideoChunk();
void SliceTo(TrackTicks aStart, TrackTicks aEnd)
{
NS_ASSERTION(aStart >= 0 && aStart < aEnd && aEnd <= mDuration,
"Slice out of bounds");
mDuration = aEnd - aStart;
}
TrackTicks GetDuration() const { return mDuration; }
bool CanCombineWithFollowing(const VideoChunk& aOther) const
{
return aOther.mFrame == mFrame;
}
bool IsNull() const { return !mFrame.GetImage(); }
void SetNull(TrackTicks aDuration)
{
mDuration = aDuration;
mFrame.SetNull();
}
void SetForceBlack(bool aForceBlack) { mFrame.SetForceBlack(aForceBlack); }
TrackTicks mDuration;
VideoFrame mFrame;
};
class VideoSegment : public MediaSegmentBase<VideoSegment, VideoChunk> {
public:
typedef mozilla::layers::Image Image;
VideoSegment();
~VideoSegment();
void AppendFrame(already_AddRefed<Image> aImage, TrackTicks aDuration,
const gfxIntSize& aIntrinsicSize);
const VideoFrame* GetFrameAt(TrackTicks aOffset, TrackTicks* aStart = nullptr)
{
VideoChunk* c = FindChunkContaining(aOffset, aStart);
if (!c) {
return nullptr;
}
return &c->mFrame;
}
const VideoFrame* GetLastFrame(TrackTicks* aStart = nullptr)
{
VideoChunk* c = GetLastChunk();
if (!c) {
return nullptr;
}
if (aStart) {
*aStart = mDuration - c->mDuration;
}
return &c->mFrame;
}
// Segment-generic methods not in MediaSegmentBase
static Type StaticType() { return VIDEO; }
};
}
#endif /* MOZILLA_VIDEOSEGMENT_H_ */
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