mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-10 11:54:40 +00:00
451 lines
15 KiB
C
451 lines
15 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"
|
||
|
#include "mozilla/RefPtr.h"
|
||
|
#include "mozilla/UniquePtr.h"
|
||
|
#include "nsTArray.h"
|
||
|
|
||
|
namespace mozilla {
|
||
|
|
||
|
namespace layers {
|
||
|
class Image;
|
||
|
class ImageContainer;
|
||
|
} // namespace layers
|
||
|
|
||
|
class MediaByteBuffer;
|
||
|
class SharedTrackInfo;
|
||
|
|
||
|
// Container that holds media samples.
|
||
|
class MediaData {
|
||
|
public:
|
||
|
|
||
|
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MediaData)
|
||
|
|
||
|
enum Type {
|
||
|
AUDIO_DATA = 0,
|
||
|
VIDEO_DATA,
|
||
|
RAW_DATA
|
||
|
};
|
||
|
|
||
|
MediaData(Type aType,
|
||
|
int64_t aOffset,
|
||
|
int64_t aTimestamp,
|
||
|
int64_t aDuration,
|
||
|
uint32_t aFrames)
|
||
|
: mType(aType)
|
||
|
, mOffset(aOffset)
|
||
|
, mTime(aTimestamp)
|
||
|
, mTimecode(aTimestamp)
|
||
|
, mDuration(aDuration)
|
||
|
, mFrames(aFrames)
|
||
|
, mKeyframe(false)
|
||
|
, mDiscontinuity(false)
|
||
|
{}
|
||
|
|
||
|
// Type of contained data.
|
||
|
const Type mType;
|
||
|
|
||
|
// Approximate byte offset where this data was demuxed from its media.
|
||
|
int64_t mOffset;
|
||
|
|
||
|
// Start time of sample, in microseconds.
|
||
|
int64_t mTime;
|
||
|
|
||
|
// Codec specific internal time code. For Ogg based codecs this is the
|
||
|
// granulepos.
|
||
|
int64_t mTimecode;
|
||
|
|
||
|
// Duration of sample, in microseconds.
|
||
|
int64_t mDuration;
|
||
|
|
||
|
// Amount of frames for contained data.
|
||
|
const uint32_t mFrames;
|
||
|
|
||
|
bool mKeyframe;
|
||
|
|
||
|
// True if this is the first sample after a gap or discontinuity in
|
||
|
// the stream. This is true for the first sample in a stream after a seek.
|
||
|
bool mDiscontinuity;
|
||
|
|
||
|
int64_t GetEndTime() const { return mTime + mDuration; }
|
||
|
|
||
|
bool AdjustForStartTime(int64_t aStartTime)
|
||
|
{
|
||
|
mTime = mTime - aStartTime;
|
||
|
return mTime >= 0;
|
||
|
}
|
||
|
|
||
|
template <typename ReturnType>
|
||
|
const ReturnType* As() const
|
||
|
{
|
||
|
MOZ_ASSERT(this->mType == ReturnType::sType);
|
||
|
return static_cast<const ReturnType*>(this);
|
||
|
}
|
||
|
|
||
|
template <typename ReturnType>
|
||
|
ReturnType* As()
|
||
|
{
|
||
|
MOZ_ASSERT(this->mType == ReturnType::sType);
|
||
|
return static_cast<ReturnType*>(this);
|
||
|
}
|
||
|
|
||
|
protected:
|
||
|
MediaData(Type aType, uint32_t aFrames)
|
||
|
: mType(aType)
|
||
|
, mOffset(0)
|
||
|
, mTime(0)
|
||
|
, mTimecode(0)
|
||
|
, mDuration(0)
|
||
|
, mFrames(aFrames)
|
||
|
, mKeyframe(false)
|
||
|
, mDiscontinuity(false)
|
||
|
{}
|
||
|
|
||
|
virtual ~MediaData() {}
|
||
|
|
||
|
};
|
||
|
|
||
|
// Holds chunk a decoded audio frames.
|
||
|
class AudioData : public MediaData {
|
||
|
public:
|
||
|
|
||
|
AudioData(int64_t aOffset,
|
||
|
int64_t aTime,
|
||
|
int64_t aDuration,
|
||
|
uint32_t aFrames,
|
||
|
UniquePtr<AudioDataValue[]> aData,
|
||
|
uint32_t aChannels,
|
||
|
uint32_t aRate)
|
||
|
: MediaData(sType, aOffset, aTime, aDuration, aFrames)
|
||
|
, mChannels(aChannels)
|
||
|
, mRate(aRate)
|
||
|
, mAudioData(Move(aData)) {}
|
||
|
|
||
|
static const Type sType = AUDIO_DATA;
|
||
|
static const char* sTypeName;
|
||
|
|
||
|
// Creates a new AudioData identical to aOther, but with a different
|
||
|
// specified timestamp and duration. All data from aOther is copied
|
||
|
// into the new AudioData but the audio data which is transferred.
|
||
|
// After such call, the original aOther is unusable.
|
||
|
static already_AddRefed<AudioData>
|
||
|
TransferAndUpdateTimestampAndDuration(AudioData* aOther,
|
||
|
int64_t aTimestamp,
|
||
|
int64_t aDuration);
|
||
|
|
||
|
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const;
|
||
|
|
||
|
// If mAudioBuffer is null, creates it from mAudioData.
|
||
|
void EnsureAudioBuffer();
|
||
|
|
||
|
const uint32_t mChannels;
|
||
|
const uint32_t mRate;
|
||
|
// At least one of mAudioBuffer/mAudioData must be non-null.
|
||
|
// mChannels channels, each with mFrames frames
|
||
|
RefPtr<SharedBuffer> mAudioBuffer;
|
||
|
// mFrames frames, each with mChannels values
|
||
|
UniquePtr<AudioDataValue[]> mAudioData;
|
||
|
|
||
|
protected:
|
||
|
~AudioData() {}
|
||
|
};
|
||
|
|
||
|
namespace layers {
|
||
|
class TextureClient;
|
||
|
class PlanarYCbCrImage;
|
||
|
} // namespace layers
|
||
|
|
||
|
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;
|
||
|
|
||
|
static const Type sType = VIDEO_DATA;
|
||
|
static const char* sTypeName;
|
||
|
|
||
|
// 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 already_AddRefed<VideoData> Create(const 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 already_AddRefed<VideoData> Create(const 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 already_AddRefed<VideoData> Create(const 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 already_AddRefed<VideoData> Create(const VideoInfo& aInfo,
|
||
|
ImageContainer* aContainer,
|
||
|
int64_t aOffset,
|
||
|
int64_t aTime,
|
||
|
int64_t aDuration,
|
||
|
layers::TextureClient* aBuffer,
|
||
|
bool aKeyframe,
|
||
|
int64_t aTimecode,
|
||
|
const IntRect& aPicture);
|
||
|
|
||
|
static already_AddRefed<VideoData> CreateFromImage(const VideoInfo& aInfo,
|
||
|
ImageContainer* aContainer,
|
||
|
int64_t aOffset,
|
||
|
int64_t aTime,
|
||
|
int64_t aDuration,
|
||
|
const RefPtr<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 already_AddRefed<VideoData> ShallowCopyUpdateDuration(const VideoData* aOther,
|
||
|
int64_t aDuration);
|
||
|
|
||
|
// Creates a new VideoData identical to aOther, but with a different
|
||
|
// specified timestamp. All data from aOther is copied into the new
|
||
|
// VideoData, as ShallowCopyUpdateDuration() does.
|
||
|
static already_AddRefed<VideoData> ShallowCopyUpdateTimestamp(const VideoData* aOther,
|
||
|
int64_t aTimestamp);
|
||
|
|
||
|
// Creates a new VideoData identical to aOther, but with a different
|
||
|
// specified timestamp and duration. All data from aOther is copied
|
||
|
// into the new VideoData, as ShallowCopyUpdateDuration() does.
|
||
|
static already_AddRefed<VideoData>
|
||
|
ShallowCopyUpdateTimestampAndDuration(const VideoData* aOther, int64_t aTimestamp,
|
||
|
int64_t aDuration);
|
||
|
|
||
|
// Initialize PlanarYCbCrImage. Only When aCopyData is true,
|
||
|
// video data is copied to PlanarYCbCrImage.
|
||
|
static bool SetVideoDataToImage(PlanarYCbCrImage* aVideoImage,
|
||
|
const VideoInfo& aInfo,
|
||
|
const YCbCrBuffer &aBuffer,
|
||
|
const IntRect& aPicture,
|
||
|
bool aCopyData);
|
||
|
|
||
|
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const;
|
||
|
|
||
|
// 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;
|
||
|
|
||
|
// This frame's image.
|
||
|
RefPtr<Image> mImage;
|
||
|
|
||
|
int32_t mFrameID;
|
||
|
|
||
|
bool mSentToCompositor;
|
||
|
|
||
|
// True if this video frame is reported as dropped
|
||
|
// for missing the compositor deadline. (bug 1299018)
|
||
|
bool mIsDropped = false;
|
||
|
|
||
|
VideoData(int64_t aOffset,
|
||
|
int64_t aTime,
|
||
|
int64_t aDuration,
|
||
|
bool aKeyframe,
|
||
|
int64_t aTimecode,
|
||
|
IntSize aDisplay,
|
||
|
uint32_t aFrameID);
|
||
|
|
||
|
protected:
|
||
|
~VideoData();
|
||
|
};
|
||
|
|
||
|
class CryptoTrack
|
||
|
{
|
||
|
public:
|
||
|
CryptoTrack() : mValid(false) {}
|
||
|
bool mValid;
|
||
|
int32_t mMode;
|
||
|
int32_t mIVSize;
|
||
|
nsTArray<uint8_t> mKeyId;
|
||
|
};
|
||
|
|
||
|
class CryptoSample : public CryptoTrack
|
||
|
{
|
||
|
public:
|
||
|
nsTArray<uint16_t> mPlainSizes;
|
||
|
nsTArray<uint32_t> mEncryptedSizes;
|
||
|
nsTArray<uint8_t> mIV;
|
||
|
nsTArray<nsCString> mSessionIds;
|
||
|
};
|
||
|
|
||
|
|
||
|
// MediaRawData is a MediaData container used to store demuxed, still compressed
|
||
|
// samples.
|
||
|
// Use MediaRawData::CreateWriter() to obtain a MediaRawDataWriter object that
|
||
|
// provides methods to modify and manipulate the data.
|
||
|
// Memory allocations are fallibles. Methods return a boolean indicating if
|
||
|
// memory allocations were successful. Return values should always be checked.
|
||
|
// MediaRawData::mData will be nullptr if no memory has been allocated or if
|
||
|
// an error occurred during construction.
|
||
|
// Existing data is only ever modified if new memory allocation has succeeded
|
||
|
// and preserved if not.
|
||
|
//
|
||
|
// The memory referenced by mData will always be 32 bytes aligned and the
|
||
|
// underlying buffer will always have a size such that 32 bytes blocks can be
|
||
|
// used to read the content, regardless of the mSize value. Buffer is zeroed
|
||
|
// on creation.
|
||
|
//
|
||
|
// Typical usage: create new MediaRawData; create the associated
|
||
|
// MediaRawDataWriter, call SetSize() to allocate memory, write to mData,
|
||
|
// up to mSize bytes.
|
||
|
|
||
|
class MediaRawData;
|
||
|
|
||
|
class MediaRawDataWriter
|
||
|
{
|
||
|
public:
|
||
|
// Pointer to data or null if not-yet allocated
|
||
|
uint8_t* Data();
|
||
|
// Writeable size of buffer.
|
||
|
size_t Size();
|
||
|
// Writeable reference to MediaRawData::mCryptoInternal
|
||
|
CryptoSample& mCrypto;
|
||
|
|
||
|
// Data manipulation methods. mData and mSize may be updated accordingly.
|
||
|
|
||
|
// Set size of buffer, allocating memory as required.
|
||
|
// If size is increased, new buffer area is filled with 0.
|
||
|
bool SetSize(size_t aSize);
|
||
|
// Add aData at the beginning of buffer.
|
||
|
bool Prepend(const uint8_t* aData, size_t aSize);
|
||
|
// Replace current content with aData.
|
||
|
bool Replace(const uint8_t* aData, size_t aSize);
|
||
|
// Clear the memory buffer. Will set target mData and mSize to 0.
|
||
|
void Clear();
|
||
|
|
||
|
private:
|
||
|
friend class MediaRawData;
|
||
|
explicit MediaRawDataWriter(MediaRawData* aMediaRawData);
|
||
|
bool EnsureSize(size_t aSize);
|
||
|
MediaRawData* mTarget;
|
||
|
};
|
||
|
|
||
|
class MediaRawData : public MediaData {
|
||
|
public:
|
||
|
MediaRawData();
|
||
|
MediaRawData(const uint8_t* aData, size_t mSize);
|
||
|
|
||
|
// Pointer to data or null if not-yet allocated
|
||
|
const uint8_t* Data() const { return mData; }
|
||
|
// Size of buffer.
|
||
|
size_t Size() const { return mSize; }
|
||
|
size_t ComputedSizeOfIncludingThis() const
|
||
|
{
|
||
|
return sizeof(*this) + mCapacity;
|
||
|
}
|
||
|
|
||
|
const CryptoSample& mCrypto;
|
||
|
RefPtr<MediaByteBuffer> mExtraData;
|
||
|
|
||
|
RefPtr<SharedTrackInfo> mTrackInfo;
|
||
|
|
||
|
// Return a deep copy or nullptr if out of memory.
|
||
|
virtual already_AddRefed<MediaRawData> Clone() const;
|
||
|
// Create a MediaRawDataWriter for this MediaRawData. The caller must
|
||
|
// delete the writer once done. The writer is not thread-safe.
|
||
|
virtual MediaRawDataWriter* CreateWriter();
|
||
|
virtual size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const;
|
||
|
|
||
|
protected:
|
||
|
~MediaRawData();
|
||
|
|
||
|
private:
|
||
|
friend class MediaRawDataWriter;
|
||
|
// Ensure that the backend buffer can hold aSize data. Will update mData.
|
||
|
// Will enforce that the start of allocated data is always 32 bytes
|
||
|
// aligned and that it has sufficient end padding to allow for 32 bytes block
|
||
|
// read as required by some data decoders.
|
||
|
// Returns false if memory couldn't be allocated.
|
||
|
bool EnsureCapacity(size_t aSize);
|
||
|
uint8_t* mData;
|
||
|
size_t mSize;
|
||
|
UniquePtr<uint8_t[]> mBuffer;
|
||
|
uint32_t mCapacity;
|
||
|
CryptoSample mCryptoInternal;
|
||
|
MediaRawData(const MediaRawData&); // Not implemented
|
||
|
};
|
||
|
|
||
|
// MediaByteBuffer is a ref counted infallible TArray.
|
||
|
class MediaByteBuffer : public nsTArray<uint8_t> {
|
||
|
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MediaByteBuffer);
|
||
|
MediaByteBuffer() = default;
|
||
|
explicit MediaByteBuffer(size_t aCapacity) : nsTArray<uint8_t>(aCapacity) {}
|
||
|
|
||
|
private:
|
||
|
~MediaByteBuffer() {}
|
||
|
};
|
||
|
|
||
|
} // namespace mozilla
|
||
|
|
||
|
#endif // MediaData_h
|