127 lines
2.5 KiB
C++
127 lines
2.5 KiB
C++
/*
|
|
This file is part of Telegram Desktop,
|
|
the official desktop application for the Telegram messaging service.
|
|
|
|
For license and copyright information please follow this link:
|
|
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
|
|
*/
|
|
#pragma once
|
|
|
|
#include "ffmpeg/ffmpeg_utility.h"
|
|
|
|
#include <QImage>
|
|
#include <QSize>
|
|
#include <QByteArray>
|
|
|
|
namespace Lottie {
|
|
|
|
struct FrameRequest;
|
|
|
|
class EncodedStorage {
|
|
public:
|
|
void allocate(int width, int height);
|
|
|
|
int width() const;
|
|
int height() const;
|
|
|
|
char *data();
|
|
const char *data() const;
|
|
int size() const;
|
|
|
|
uint8_t *yData();
|
|
const uint8_t *yData() const;
|
|
int yBytesPerLine() const;
|
|
uint8_t *uData();
|
|
const uint8_t *uData() const;
|
|
int uBytesPerLine() const;
|
|
uint8_t *vData();
|
|
const uint8_t *vData() const;
|
|
int vBytesPerLine() const;
|
|
uint8_t *aData();
|
|
const uint8_t *aData() const;
|
|
int aBytesPerLine() const;
|
|
|
|
private:
|
|
void reallocate();
|
|
|
|
int _width = 0;
|
|
int _height = 0;
|
|
QByteArray _data;
|
|
|
|
};
|
|
|
|
class Cache {
|
|
public:
|
|
enum class Encoder : qint8 {
|
|
YUV420A4_LZ4,
|
|
};
|
|
|
|
Cache(
|
|
const QByteArray &data,
|
|
const FrameRequest &request,
|
|
FnMut<void(QByteArray &&cached)> put);
|
|
|
|
void init(
|
|
QSize original,
|
|
int frameRate,
|
|
int framesCount,
|
|
const FrameRequest &request);
|
|
[[nodiscard]] int frameRate() const;
|
|
[[nodiscard]] int framesReady() const;
|
|
[[nodiscard]] int framesCount() const;
|
|
[[nodiscard]] QSize originalSize() const;
|
|
[[nodiscard]] QImage takeFirstFrame();
|
|
|
|
[[nodiscard]] bool renderFrame(
|
|
QImage &to,
|
|
const FrameRequest &request,
|
|
int index);
|
|
void appendFrame(
|
|
const QImage &frame,
|
|
const FrameRequest &request,
|
|
int index);
|
|
|
|
~Cache();
|
|
|
|
private:
|
|
struct ReadResult {
|
|
bool ok = false;
|
|
bool xored = false;
|
|
};
|
|
struct EncodeFields {
|
|
std::vector<QByteArray> compressedFrames;
|
|
QByteArray compressBuffer;
|
|
QByteArray xorCompressBuffer;
|
|
QImage cache;
|
|
FFmpeg::SwscalePointer context;
|
|
int totalSize = 0;
|
|
};
|
|
int headerSize() const;
|
|
void prepareBuffers();
|
|
void finalizeEncoding();
|
|
|
|
void writeHeader();
|
|
void updateFramesReadyCount();
|
|
[[nodiscard]] bool readHeader(const FrameRequest &request);
|
|
[[nodiscard]] ReadResult readCompressedFrame();
|
|
|
|
QByteArray _data;
|
|
EncodeFields _encode;
|
|
QSize _size;
|
|
QSize _original;
|
|
EncodedStorage _uncompressed;
|
|
EncodedStorage _previous;
|
|
FFmpeg::SwscalePointer _decodeContext;
|
|
QImage _firstFrame;
|
|
int _frameRate = 0;
|
|
int _framesCount = 0;
|
|
int _framesReady = 0;
|
|
int _offset = 0;
|
|
int _offsetFrameIndex = 0;
|
|
Encoder _encoder = Encoder::YUV420A4_LZ4;
|
|
FnMut<void(QByteArray &&cached)> _put;
|
|
|
|
};
|
|
|
|
} // namespace Lottie
|