mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 06:35:42 +00:00
263 lines
8.5 KiB
C++
263 lines
8.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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/. */
|
|
#if !defined(MediaData_h)
|
|
#define MediaData_h
|
|
|
|
#include "nsSize.h"
|
|
#include "mozilla/gfx/Rect.h"
|
|
#include "nsRect.h"
|
|
#include "AudioSampleFormat.h"
|
|
#include "nsIMemoryReporter.h"
|
|
#include "SharedBuffer.h"
|
|
|
|
namespace mozilla {
|
|
|
|
namespace layers {
|
|
class Image;
|
|
class ImageContainer;
|
|
}
|
|
|
|
// Container that holds media samples.
|
|
class MediaData {
|
|
public:
|
|
|
|
enum Type {
|
|
AUDIO_SAMPLES = 0,
|
|
VIDEO_FRAME = 1
|
|
};
|
|
|
|
MediaData(Type aType,
|
|
int64_t aOffset,
|
|
int64_t aTimestamp,
|
|
int64_t aDuration)
|
|
: mType(aType)
|
|
, mOffset(aOffset)
|
|
, mTime(aTimestamp)
|
|
, mDuration(aDuration)
|
|
{}
|
|
|
|
virtual ~MediaData() {}
|
|
|
|
// Type of contained data.
|
|
const Type mType;
|
|
|
|
// Approximate byte offset where this data was demuxed from its media.
|
|
const int64_t mOffset;
|
|
|
|
// Start time of sample, in microseconds.
|
|
const int64_t mTime;
|
|
|
|
// Duration of sample, in microseconds.
|
|
const int64_t mDuration;
|
|
|
|
int64_t GetEndTime() const { return mTime + mDuration; }
|
|
|
|
};
|
|
|
|
// Holds chunk a decoded audio frames.
|
|
class AudioData : public MediaData {
|
|
public:
|
|
|
|
AudioData(int64_t aOffset,
|
|
int64_t aTime,
|
|
int64_t aDuration,
|
|
uint32_t aFrames,
|
|
AudioDataValue* aData,
|
|
uint32_t aChannels)
|
|
: MediaData(AUDIO_SAMPLES, aOffset, aTime, aDuration)
|
|
, mFrames(aFrames)
|
|
, mChannels(aChannels)
|
|
, mAudioData(aData)
|
|
{
|
|
MOZ_COUNT_CTOR(AudioData);
|
|
}
|
|
|
|
~AudioData()
|
|
{
|
|
MOZ_COUNT_DTOR(AudioData);
|
|
}
|
|
|
|
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
|
|
size_t size = aMallocSizeOf(this) + aMallocSizeOf(mAudioData);
|
|
if (mAudioBuffer) {
|
|
size += mAudioBuffer->SizeOfIncludingThis(aMallocSizeOf);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
// If mAudioBuffer is null, creates it from mAudioData.
|
|
void EnsureAudioBuffer();
|
|
|
|
const uint32_t mFrames;
|
|
const uint32_t mChannels;
|
|
// At least one of mAudioBuffer/mAudioData must be non-null.
|
|
// mChannels channels, each with mFrames frames
|
|
nsRefPtr<SharedBuffer> mAudioBuffer;
|
|
// mFrames frames, each with mChannels values
|
|
nsAutoArrayPtr<AudioDataValue> mAudioData;
|
|
};
|
|
|
|
namespace layers {
|
|
class GraphicBufferLocked;
|
|
class PlanarYCbCrImage;
|
|
}
|
|
|
|
class VideoInfo;
|
|
|
|
// Holds a decoded video frame, in YCbCr format. These are queued in the reader.
|
|
class VideoData : public MediaData {
|
|
public:
|
|
typedef gfx::IntRect IntRect;
|
|
typedef gfx::IntSize IntSize;
|
|
typedef layers::ImageContainer ImageContainer;
|
|
typedef layers::Image Image;
|
|
typedef layers::PlanarYCbCrImage PlanarYCbCrImage;
|
|
|
|
// YCbCr data obtained from decoding the video. The index's are:
|
|
// 0 = Y
|
|
// 1 = Cb
|
|
// 2 = Cr
|
|
struct YCbCrBuffer {
|
|
struct Plane {
|
|
uint8_t* mData;
|
|
uint32_t mWidth;
|
|
uint32_t mHeight;
|
|
uint32_t mStride;
|
|
uint32_t mOffset;
|
|
uint32_t mSkip;
|
|
};
|
|
|
|
Plane mPlanes[3];
|
|
};
|
|
|
|
// Constructs a VideoData object. If aImage is nullptr, creates a new Image
|
|
// holding a copy of the YCbCr data passed in aBuffer. If aImage is not
|
|
// nullptr, it's stored as the underlying video image and aBuffer is assumed
|
|
// to point to memory within aImage so no copy is made. aTimecode is a codec
|
|
// specific number representing the timestamp of the frame of video data.
|
|
// Returns nsnull if an error occurs. This may indicate that memory couldn't
|
|
// be allocated to create the VideoData object, or it may indicate some
|
|
// problem with the input data (e.g. negative stride).
|
|
static VideoData* Create(VideoInfo& aInfo,
|
|
ImageContainer* aContainer,
|
|
Image* aImage,
|
|
int64_t aOffset,
|
|
int64_t aTime,
|
|
int64_t aDuration,
|
|
const YCbCrBuffer &aBuffer,
|
|
bool aKeyframe,
|
|
int64_t aTimecode,
|
|
const IntRect& aPicture);
|
|
|
|
// Variant that always makes a copy of aBuffer
|
|
static VideoData* Create(VideoInfo& aInfo,
|
|
ImageContainer* aContainer,
|
|
int64_t aOffset,
|
|
int64_t aTime,
|
|
int64_t aDuration,
|
|
const YCbCrBuffer &aBuffer,
|
|
bool aKeyframe,
|
|
int64_t aTimecode,
|
|
const IntRect& aPicture);
|
|
|
|
// Variant to create a VideoData instance given an existing aImage
|
|
static VideoData* Create(VideoInfo& aInfo,
|
|
Image* aImage,
|
|
int64_t aOffset,
|
|
int64_t aTime,
|
|
int64_t aDuration,
|
|
const YCbCrBuffer &aBuffer,
|
|
bool aKeyframe,
|
|
int64_t aTimecode,
|
|
const IntRect& aPicture);
|
|
|
|
static VideoData* Create(VideoInfo& aInfo,
|
|
ImageContainer* aContainer,
|
|
int64_t aOffset,
|
|
int64_t aTime,
|
|
int64_t aDuration,
|
|
layers::GraphicBufferLocked* aBuffer,
|
|
bool aKeyframe,
|
|
int64_t aTimecode,
|
|
const IntRect& aPicture);
|
|
|
|
static VideoData* CreateFromImage(VideoInfo& aInfo,
|
|
ImageContainer* aContainer,
|
|
int64_t aOffset,
|
|
int64_t aTime,
|
|
int64_t aDuration,
|
|
const nsRefPtr<Image>& aImage,
|
|
bool aKeyframe,
|
|
int64_t aTimecode,
|
|
const IntRect& aPicture);
|
|
|
|
// Creates a new VideoData identical to aOther, but with a different
|
|
// specified duration. All data from aOther is copied into the new
|
|
// VideoData. The new VideoData's mImage field holds a reference to
|
|
// aOther's mImage, i.e. the Image is not copied. This function is useful
|
|
// in reader backends that can't determine the duration of a VideoData
|
|
// until the next frame is decoded, i.e. it's a way to change the const
|
|
// duration field on a VideoData.
|
|
static VideoData* ShallowCopyUpdateDuration(VideoData* aOther,
|
|
int64_t aDuration);
|
|
|
|
// Initialize PlanarYCbCrImage. Only When aCopyData is true,
|
|
// video data is copied to PlanarYCbCrImage.
|
|
static void SetVideoDataToImage(PlanarYCbCrImage* aVideoImage,
|
|
VideoInfo& aInfo,
|
|
const YCbCrBuffer &aBuffer,
|
|
const IntRect& aPicture,
|
|
bool aCopyData);
|
|
|
|
// Constructs a duplicate VideoData object. This intrinsically tells the
|
|
// player that it does not need to update the displayed frame when this
|
|
// frame is played; this frame is identical to the previous.
|
|
static VideoData* CreateDuplicate(int64_t aOffset,
|
|
int64_t aTime,
|
|
int64_t aDuration,
|
|
int64_t aTimecode)
|
|
{
|
|
return new VideoData(aOffset, aTime, aDuration, aTimecode);
|
|
}
|
|
|
|
~VideoData();
|
|
|
|
// Dimensions at which to display the video frame. The picture region
|
|
// will be scaled to this size. This is should be the picture region's
|
|
// dimensions scaled with respect to its aspect ratio.
|
|
const IntSize mDisplay;
|
|
|
|
// Codec specific internal time code. For Ogg based codecs this is the
|
|
// granulepos.
|
|
const int64_t mTimecode;
|
|
|
|
// This frame's image.
|
|
nsRefPtr<Image> mImage;
|
|
|
|
// When true, denotes that this frame is identical to the frame that
|
|
// came before; it's a duplicate. mBuffer will be empty.
|
|
const bool mDuplicate;
|
|
const bool mKeyframe;
|
|
|
|
public:
|
|
VideoData(int64_t aOffset,
|
|
int64_t aTime,
|
|
int64_t aDuration,
|
|
int64_t aTimecode);
|
|
|
|
VideoData(int64_t aOffset,
|
|
int64_t aTime,
|
|
int64_t aDuration,
|
|
bool aKeyframe,
|
|
int64_t aTimecode,
|
|
IntSize aDisplay);
|
|
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // MediaData_h
|