encoder.hpp

/*
 *  Copyright (C) 2014 Hugh Bailey <obs.jim@gmail.com>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
 *  USA
 */

#pragma once

#include "../dshowcapture.hpp"
#include "output-filter.hpp"
#include "capture-filter.hpp"

#include <string>
#include <vector>
#include <deque>
#include <mutex>
using namespace std;

struct EncodedData {
	vector<unsigned char> data;

	inline EncodedData() = default;

	inline EncodedData(unsigned char *data_, size_t size)
	{
		data.resize(size);
		memcpy(data.data(), data_, size);
	}
};

namespace DShow {

struct HVideoEncoder {
	ComPtr<IGraphBuilder> graph;
	ComPtr<ICaptureGraphBuilder2> builder;
	ComPtr<IMediaControl> control;

	ComPtr<IBaseFilter> encoder;
	ComPtr<IBaseFilter> device;
	ComPtr<OutputFilter> output;
	ComPtr<CaptureFilter> capture;

	VideoEncoderConfig config;

	mutex packetMutex;
	deque<EncodedData> packets;
	EncodedData curPacket;

	deque<long long> ptsVals;

	bool initialized = false;
	bool active = false;

	HVideoEncoder();
	~HVideoEncoder();

	bool SetupCrossbar();

	void Receive(IMediaSample *s);

	bool ConnectFilters();

	bool SetupEncoder(IBaseFilter *filter);

	bool SetConfig(VideoEncoderConfig &config);

	bool Encode(unsigned char *frame[DSHOW_MAX_PLANES],
		    size_t linesize[DSHOW_MAX_PLANES], long long timestampStart,
		    long long timestampEnd, EncoderPacket &packet,
		    bool &new_packet);
};

};