zoneminder/src/zm_mpeg.h

/*
 * ZoneMinder MPEG Interface, $Date$, $Revision$
 * Copyright (C) 2001-2008 Philip Coombes
 * 
 * This program 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 2
 * of the License, or (at your option) any later version.
 * 
 * This program 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.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/  

#ifndef ZM_MPEG_H
#define ZM_MPEG_H

#include "zm_ffmpeg.h"

#if HAVE_LIBAVCODEC

class VideoStream
{
protected:
	struct MimeData
	{
		const char *format;
		const char *mime_type;
	};

protected:
	static bool initialised;
	static struct MimeData mime_data[];

protected:
	char *codec_and_format;
	const char *filename;
	const char *format;
	const char *codec_name;
	enum _AVPIXELFORMAT pf;
	AVOutputFormat *of;
	AVFormatContext *ofc;
	AVStream *ost;
	AVCodec *codec;
	AVFrame *opicture;
	AVFrame *tmp_opicture;
	uint8_t *video_outbuf;
	int video_outbuf_size;
	double last_pts;
	
	pthread_t streaming_thread;
	bool do_streaming;
	uint8_t *buffer_copy;
	bool add_timestamp;
	unsigned int timestamp;
	pthread_mutex_t *buffer_copy_lock;
	int buffer_copy_size;
	int buffer_copy_used;
    AVPacket** packet_buffers;
    int packet_index;
    int SendPacket(AVPacket *packet);
    static void* StreamingThreadCallback(void *ctx);

protected:
	static void Initialise();

	void SetupFormat( );
	void SetupCodec( int colours, int subpixelorder, int width, int height, int bitrate, double frame_rate );
	void SetParameters();
	void ActuallyOpenStream();
	double ActuallyEncodeFrame( const uint8_t *buffer, int buffer_size, bool add_timestamp=false, unsigned int timestamp=0 );

public:
	VideoStream( const char *filename, const char *format, int bitrate, double frame_rate, int colours, int subpixelorder, int width, int height );
	~VideoStream();
	const char *MimeType() const;
	void OpenStream();
	double EncodeFrame( const uint8_t *buffer, int buffer_size, bool add_timestamp=false, unsigned int timestamp=0 );
};

#endif // HAVE_LIBAVCODEC

#endif // ZM_MPEG_H