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/*********************************************************************************
* recordMyDesktop *
**********************************************************************************
* *
* Copyright (C) 2006 John Varouhakis *
* *
* *
* 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 *
* *
* *
* *
* For further information contact me at johnvarouhakis@gmail.com *
**********************************************************************************/
#include <recordmydesktop.h>
void InitEncoder(ProgData *pdata,EncData *enc_data_t){
int y1,y2;
(pdata)->enc_data=enc_data_t;
srand(time(NULL));
y1=rand();
y2=rand();
y2+=(y1==y2);
ogg_stream_init(&(enc_data_t)->m_ogg_ts,y1);
if(!pdata->args.nosound)
ogg_stream_init(&(enc_data_t)->m_ogg_vs,y2);
(enc_data_t)->fp=fopen((pdata)->args.filename,"w");
theora_info_init(&(enc_data_t)->m_th_inf);
(enc_data_t)->m_th_inf.frame_width=(pdata)->brwin.rgeom.width;
(enc_data_t)->m_th_inf.frame_height=(pdata)->brwin.rgeom.height;
(enc_data_t)->m_th_inf.width=(((enc_data_t)->m_th_inf.frame_width + 15) >>4)<<4;
(enc_data_t)->m_th_inf.height=(((enc_data_t)->m_th_inf.frame_height + 15) >>4)<<4;
(enc_data_t)->m_th_inf.offset_x=(((enc_data_t)->m_th_inf.width-(enc_data_t)->m_th_inf.frame_width)/2)&~1;
(enc_data_t)->m_th_inf.offset_y=(((enc_data_t)->m_th_inf.height-(enc_data_t)->m_th_inf.frame_height)/2)&~1;
(enc_data_t)->m_th_inf.fps_numerator=((pdata)->args.fps*100.0);
(enc_data_t)->m_th_inf.fps_denominator=100;
(enc_data_t)->m_th_inf.aspect_numerator=1;//(pdata)->brwin.rgeom.width;
(enc_data_t)->m_th_inf.aspect_denominator=1;//(pdata)->brwin.rgeom.height;
(enc_data_t)->m_th_inf.colorspace=OC_CS_UNSPECIFIED;
(enc_data_t)->m_th_inf.pixelformat=OC_PF_420;
(enc_data_t)->m_th_inf.target_bitrate=(pdata)->args.v_bitrate;
(enc_data_t)->m_th_inf.quality=(pdata)->args.v_quality;
(enc_data_t)->m_th_inf.dropframes_p=(pdata)->args.dropframes;
(enc_data_t)->m_th_inf.quick_p=1;
(enc_data_t)->m_th_inf.keyframe_auto_p=1;
(enc_data_t)->m_th_inf.keyframe_frequency=64;
(enc_data_t)->m_th_inf.keyframe_frequency_force=64;
(enc_data_t)->m_th_inf.keyframe_data_target_bitrate=(enc_data_t)->m_th_inf.quality*1.5;
(enc_data_t)->m_th_inf.keyframe_auto_threshold=80;
(enc_data_t)->m_th_inf.keyframe_mindistance=8;
(enc_data_t)->m_th_inf.noise_sensitivity=1;
(enc_data_t)->m_th_inf.sharpness=2;
theora_encode_init(&(enc_data_t)->m_th_st,&(enc_data_t)->m_th_inf);
if(!pdata->args.nosound){
int ret;
vorbis_info_init(&(enc_data_t)->m_vo_inf);
ret = vorbis_encode_init_vbr(&(enc_data_t)->m_vo_inf,pdata->args.channels,pdata->args.frequency,(float)pdata->args.s_quality*0.1);
if(ret){
fprintf(stderr,"Error while setting up vorbis stream quality!\n");
exit(2);
}
vorbis_comment_init(&(enc_data_t)->m_vo_cmmnt);
vorbis_analysis_init(&(enc_data_t)->m_vo_dsp,&(enc_data_t)->m_vo_inf);
vorbis_block_init(&(enc_data_t)->m_vo_dsp,&(enc_data_t)->m_vo_block);
}
theora_encode_header(&(enc_data_t)->m_th_st,&(enc_data_t)->m_ogg_pckt1);
ogg_stream_packetin(&(enc_data_t)->m_ogg_ts,&(enc_data_t)->m_ogg_pckt1);
if(ogg_stream_pageout(&(enc_data_t)->m_ogg_ts,&(enc_data_t)->m_ogg_pg)!=1){
fprintf(stderr,"Internal Ogg library error.\n");
exit(2);
}
fwrite((enc_data_t)->m_ogg_pg.header,1,(enc_data_t)->m_ogg_pg.header_len,(enc_data_t)->fp);
fwrite((enc_data_t)->m_ogg_pg.body,1,(enc_data_t)->m_ogg_pg.body_len,(enc_data_t)->fp);
theora_comment_init(&(enc_data_t)->m_th_cmmnt);
theora_comment_add_tag(&(enc_data_t)->m_th_cmmnt,"recordMyDesktop",VERSION);
theora_encode_comment(&(enc_data_t)->m_th_cmmnt,&(enc_data_t)->m_ogg_pckt1);
ogg_stream_packetin(&(enc_data_t)->m_ogg_ts,&(enc_data_t)->m_ogg_pckt1);
theora_encode_tables(&(enc_data_t)->m_th_st,&(enc_data_t)->m_ogg_pckt1);
ogg_stream_packetin(&(enc_data_t)->m_ogg_ts,&(enc_data_t)->m_ogg_pckt1);
if(!pdata->args.nosound){
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&(enc_data_t)->m_vo_dsp,&(enc_data_t)->m_vo_cmmnt,&header,&header_comm,&header_code);
ogg_stream_packetin(&(enc_data_t)->m_ogg_vs,&header);
if(ogg_stream_pageout(&(enc_data_t)->m_ogg_vs,&(enc_data_t)->m_ogg_pg)!=1){
fprintf(stderr,"Internal Ogg library error.\n");
exit(2);
}
fwrite((enc_data_t)->m_ogg_pg.header,1,(enc_data_t)->m_ogg_pg.header_len,(enc_data_t)->fp);
fwrite((enc_data_t)->m_ogg_pg.body,1,(enc_data_t)->m_ogg_pg.body_len,(enc_data_t)->fp);
ogg_stream_packetin(&(enc_data_t)->m_ogg_vs,&header_comm);
ogg_stream_packetin(&(enc_data_t)->m_ogg_vs,&header_code);
}
while(1){
int result = ogg_stream_flush(&(enc_data_t)->m_ogg_ts,&(enc_data_t)->m_ogg_pg);
if(result<0){
fprintf(stderr,"Internal Ogg library error.\n");
exit(2);
}
if(result==0)break;
fwrite((enc_data_t)->m_ogg_pg.header,1,(enc_data_t)->m_ogg_pg.header_len,(enc_data_t)->fp);
fwrite((enc_data_t)->m_ogg_pg.body,1,(enc_data_t)->m_ogg_pg.body_len,(enc_data_t)->fp);
}
if(!pdata->args.nosound){
while(1){
int result=ogg_stream_flush(&(enc_data_t)->m_ogg_vs,&(enc_data_t)->m_ogg_pg);
if(result<0){
fprintf(stderr,"Internal Ogg library error.\n");
exit(2);
}
if(result==0)break;
fwrite((enc_data_t)->m_ogg_pg.header,1,(enc_data_t)->m_ogg_pg.header_len,(enc_data_t)->fp);
fwrite((enc_data_t)->m_ogg_pg.body,1,(enc_data_t)->m_ogg_pg.body_len,(enc_data_t)->fp);
}
}
(enc_data_t)->yuv.y=(unsigned char *)malloc((enc_data_t)->m_th_inf.height*(enc_data_t)->m_th_inf.width);
(enc_data_t)->yuv.u=(unsigned char *)malloc((enc_data_t)->m_th_inf.height*(enc_data_t)->m_th_inf.width/4);
(enc_data_t)->yuv.v=(unsigned char *)malloc((enc_data_t)->m_th_inf.height*(enc_data_t)->m_th_inf.width/4);
(enc_data_t)->yuv.y_width=(enc_data_t)->m_th_inf.width;
(enc_data_t)->yuv.y_height=(enc_data_t)->m_th_inf.height;
(enc_data_t)->yuv.y_stride=(enc_data_t)->m_th_inf.width;
(enc_data_t)->yuv.uv_width=(enc_data_t)->m_th_inf.width/2;
(enc_data_t)->yuv.uv_height=(enc_data_t)->m_th_inf.height/2;
(enc_data_t)->yuv.uv_stride=(enc_data_t)->m_th_inf.width/2;
(enc_data_t)->x_offset=(enc_data_t)->m_th_inf.offset_x;
(enc_data_t)->y_offset=(enc_data_t)->m_th_inf.offset_y;
theora_info_clear(&(enc_data_t)->m_th_inf);
}
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