mirror of https://github.com/procxx/kepka.git
108 lines
3.1 KiB
C++
108 lines
3.1 KiB
C++
//
|
|
// This file is part of Kepka,
|
|
// an unofficial desktop version of Telegram messaging app,
|
|
// see https://github.com/procxx/kepka
|
|
//
|
|
// Kepka is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// It is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// In addition, as a special exception, the copyright holders give permission
|
|
// to link the code of portions of this program with the OpenSSL library.
|
|
//
|
|
// Full license: https://github.com/procxx/kepka/blob/master/LICENSE
|
|
// Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
|
|
// Copyright (c) 2017- Kepka Contributors, https://github.com/procxx
|
|
//
|
|
#pragma once
|
|
|
|
#include "media/media_audio.h"
|
|
#include "media/media_audio_loader.h"
|
|
|
|
extern "C" {
|
|
#include <libavcodec/avcodec.h>
|
|
#include <libavformat/avformat.h>
|
|
#include <libavutil/opt.h>
|
|
#include <libswresample/swresample.h>
|
|
} // extern "C"
|
|
|
|
#include <AL/al.h>
|
|
|
|
class AbstractFFMpegLoader : public AudioPlayerLoader {
|
|
public:
|
|
AbstractFFMpegLoader(const FileLocation &file, const QByteArray &data, base::byte_vector &&bytes)
|
|
: AudioPlayerLoader(file, data, std::move(bytes)) {}
|
|
|
|
bool open(qint64 &position) override;
|
|
|
|
qint64 samplesCount() override {
|
|
return _samplesCount;
|
|
}
|
|
|
|
qint32 samplesFrequency() override {
|
|
return _samplesFrequency;
|
|
}
|
|
|
|
~AbstractFFMpegLoader();
|
|
|
|
protected:
|
|
qint32 _samplesFrequency = Media::Player::kDefaultFrequency;
|
|
qint64 _samplesCount = 0;
|
|
|
|
uchar *ioBuffer = nullptr;
|
|
AVIOContext *ioContext = nullptr;
|
|
AVFormatContext *fmtContext = nullptr;
|
|
AVCodec *codec = nullptr;
|
|
qint32 streamId = 0;
|
|
|
|
bool _opened = false;
|
|
|
|
private:
|
|
static int _read_data(void *opaque, uint8_t *buf, int buf_size);
|
|
static int64_t _seek_data(void *opaque, int64_t offset, int whence);
|
|
static int _read_bytes(void *opaque, uint8_t *buf, int buf_size);
|
|
static int64_t _seek_bytes(void *opaque, int64_t offset, int whence);
|
|
static int _read_file(void *opaque, uint8_t *buf, int buf_size);
|
|
static int64_t _seek_file(void *opaque, int64_t offset, int whence);
|
|
};
|
|
|
|
class FFMpegLoader : public AbstractFFMpegLoader {
|
|
public:
|
|
FFMpegLoader(const FileLocation &file, const QByteArray &data, base::byte_vector &&bytes);
|
|
|
|
bool open(qint64 &position) override;
|
|
|
|
qint32 format() override {
|
|
return fmt;
|
|
}
|
|
|
|
ReadResult readMore(QByteArray &result, qint64 &samplesAdded) override;
|
|
|
|
~FFMpegLoader();
|
|
|
|
protected:
|
|
qint32 sampleSize = 2 * sizeof(quint16);
|
|
|
|
private:
|
|
ReadResult readFromReadyFrame(QByteArray &result, qint64 &samplesAdded);
|
|
|
|
qint32 fmt = AL_FORMAT_STEREO16;
|
|
qint32 srcRate = Media::Player::kDefaultFrequency;
|
|
qint32 dstRate = Media::Player::kDefaultFrequency;
|
|
qint32 maxResampleSamples = 1024;
|
|
uint8_t **dstSamplesData = nullptr;
|
|
|
|
AVCodecContext *codecContext = nullptr;
|
|
AVPacket avpkt;
|
|
AVSampleFormat inputFormat;
|
|
AVFrame *frame = nullptr;
|
|
|
|
SwrContext *swrContext = nullptr;
|
|
};
|