/modules/Codec/Avidemux-EditorPlugin/avidemux-2.4.4/avidemux/ADM_outputs/oplug_ogm/op_ogsaveprocess.cpp

//
// C++ Implementation: op_ogsaveprocess
//
// Description: 
//
//
// Author: mean <fixounet@free.fr>, (C) 2004
//
// Copyright: See COPYING file that comes with this distribution
//
//
//
// C++ Implementation: op_ogsavecopy
//
// Description: 
//
//
// Author: mean <fixounet@free.fr>, (C) 2004
//
// Copyright: See COPYING file that comes with this distribution
//
//
#define __STDC_LIMIT_MACROS

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <unistd.h>


#include <time.h>
#include <sys/time.h>

#include "config.h"
#include "fourcc.h"
#include "avi_vars.h"
#include "ADM_toolkit/toolkit.hxx"
#include "subchunk.h"
//#include "avilist.h"

#include "ADM_video/ADM_genvideo.hxx"

#include "ADM_filter/video_filters.h"
#include "ADM_encoder/ADM_vidEncode.hxx"


#include "ADM_audio/aviaudio.hxx"
#include "ADM_audiofilter/audioprocess.hxx"

#include "default.h"

#include "oplug_ogm/op_ogsave.h"

#define aprintf printf

//________________________________________________
uint8_t	ADM_ogmWriteProcess::initVideo(const char *name)
{		
uint32_t w,h,fps1000,fcc;
        _prestore=0;
        _prestoring=1;
	_incoming = getLastVideoFilter (frameStart,frameEnd-frameStart);
 	_togo=_incoming->getInfo()->nb_frames;
  	_encode = getVideoEncoder (_incoming->getInfo()->width,_incoming->getInfo()->height);
	if (!_encode)
    		return 0;
 	
	TwoPassLogFile=new char[strlen(name)+6];
  	strcpy(TwoPassLogFile,name);
  	strcat(TwoPassLogFile,".stat"); 	  
   
 	_encode->setLogFile(TwoPassLogFile,_togo);
	
  	if (!_encode->configure (_incoming))
    	{
      		delete 	_encode;
      		_encode = NULL;
                GUI_Error_HIG (QT_TR_NOOP("Filter init failed"), NULL);
      		return 0;
    	};
 	w= _incoming->getInfo ()->width;
	h=_incoming->getInfo ()->height;
	fps1000=_incoming->getInfo ()->fps1000;
	_fps1000=fps1000;
	fcc= fourCC::get((uint8_t *)_encode->getCodecName());
   	_videoBuffer=new uint8_t[w*h*3];
  	encoding_gui->setCodec(_encode->getDisplayName());
   
//-----------------------VBR--------------------------------------
	if (_encode->isDualPass ())
	{
		uint8_t *buffer;
		uint32_t len, flag;
		FILE *tmp;
		uint8_t reuse=0;
		int frameDelay = 0, r;

		aprintf("\n** Dual pass encoding**\n");

		if((tmp=fopen(TwoPassLogFile,"rt")))
		{
			fclose(tmp);
                        if(GUI_Question(QT_TR_NOOP("\n Reuse the existing log-file ?")))
			{
				reuse=1;
			}
		}
	
		if(!reuse)
 		{
      			aprintf("**Pass 1:%lu\n",_togo);
      			_encode->startPass1 ();
			encoding_gui->setCodec(_encode->getCodecName());
			encoding_gui->setPhasis(QT_TR_NOOP("Pass one"));
                        ADMBitstream bitstream(w*h*3);
                        bitstream.data=_videoBuffer;

			for (uint32_t cf = 0; cf < _togo; cf++)
			{	
				if (!encoding_gui->isAlive())
					return 0;

				for (;;)
				{
					bitstream.cleanup(cf); 

					if (cf + frameDelay >= _togo)
					{
						if (_encode->getRequirements() & ADM_ENC_REQ_NULL_FLUSH)
							r = _encode->encode(UINT32_MAX, &bitstream);
						else
							r = 0;
					}
					else
						r = _encode->encode(cf + frameDelay, &bitstream);

					if (!r)
					{
						printf("Encoding of frame %lu failed!\n", cf);
						return 0;
					}

					if (bitstream.len == 0 && (_encode->getRequirements() & ADM_ENC_REQ_NULL_FLUSH))
					{
						printf("skipping frame: %u size: %i\n", cf + frameDelay, bitstream.len);
						frameDelay++;
					}
					else
						break;
				}

				encoding_gui->setFrame(cf,bitstream.len,bitstream.out_quantizer,_togo);
			}

		     	aprintf("**Pass 1:done\n");
    		}// End of reuse

      		if(!_encode->startPass2 ())
		{
      			printf("Pass2 ignition failed\n");
      			return 0;
		}
		encoding_gui->setPhasis(QT_TR_NOOP("Pass 2"));
	}   //-------------------------/VBR-----------------------------------
	else
	{
		encoding_gui->setPhasis(QT_TR_NOOP("Encoding"));
	}
  // init save avi

// now we build the new stream !
    	aprintf("**main pass:\n");


		stream_header header;
		int64_t dur64;
		uint32_t dur32;
		uint16_t dur16;
		
		memset(&header,0,sizeof(header));
		
		memcpy(&(header.streamtype),"video\0\0\0",8);
		MEMCPY(&(header.subtype),&fcc,4);
		
		//header.size=sizeof(header);
		dur32=sizeof(header);
		MEMCPY(&header.size,&dur32,4);
		MEMCPY(&(header.video.width),&w,4);
		MEMCPY(&(header.video.height),&h,4);
		// Timing ..
		double duration; // duration in 10us
		duration=fps1000;
		duration=1000./duration;
		duration*=1000*1000;
		duration*=10;
		
		dur64=(int64_t)duration;
		
		MEMCPY(&header.time_unit,&dur64,8);
		dur64=1;
		MEMCPY(&header.samples_per_unit,&dur64,8);
		
		dur32=0x10000;
		MEMCPY(&header.buffersize,&dur32,4);
		
		dur16=24;
		MEMCPY(&header.bits_per_sample,&dur16,2);
		
		
		//header.default_len=1;
		dur32=1;
		MEMCPY(&header.default_len,&dur32,4);
		
		return videoStream->writeHeaders(sizeof(header),(uint8_t *)&header); // +4 ?

}
//___________________________________________________
int	ADM_ogmWriteProcess::writeVideo(uint32_t frame)
{
	uint32_t len, flags;
	uint8_t ret;
	ADMBitstream bitstream(_incoming->getInfo()->width * _incoming->getInfo()->height * 3);

	bitstream.data = _videoBuffer;
	bitstream.cleanup(frame);

	if (frame >= _togo)
	{
		if (_encode->getRequirements() & ADM_ENC_REQ_NULL_FLUSH)
			ret = _encode->encode(UINT32_MAX, &bitstream);
	}
	else
		ret = _encode->encode(frame, &bitstream);

	if (!ret)
	{
		printf("OgmWrite: Error encoding frame %d\n",frame);
		return -1;
	}

	if (bitstream.len > 0)
	{
		encoding_gui->setFrame(frame >= _togo ? _togo - 1 : frame, bitstream.len, bitstream.out_quantizer, _togo);

		if (!videoStream->write(bitstream.len, _videoBuffer, bitstream.flags, bitstream.dtsFrame))
			return -1;
	}

	return bitstream.len;
}
//___________________________________________________
ADM_ogmWriteProcess::ADM_ogmWriteProcess( void)
{
	_incoming=NULL;
}
//___________________________________________________
ADM_ogmWriteProcess::~ADM_ogmWriteProcess()
{
	if(_incoming) delete _incoming;
	if(_encode) delete   _encode;

}
//EOF