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/******************************************************************************
* recordMyDesktop *
*******************************************************************************
* *
* Copyright (C) 2006,2007 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>
int IncrementalNaming(char **name){
struct stat buff;
char *base_name__;
int i=0;
base_name__=malloc(strlen(*name)+1);
strcpy(base_name__,*name);
//this will go on an endless loop if you have 65536?
//files with the same name
//or it will crash and die.anyone interested in trying ?
while (stat(*name,&buff)==0){
//create new name
char *tname=malloc(strlen(*name)+10);
char numbuf[8];
strcpy(tname,base_name__);
strcat(tname,".");
i++;
I16TOA((i),numbuf)
strcat(tname,numbuf);
//save new name
free(*name);
*name=malloc(strlen(tname)+1);
strcpy(*name,tname);
free(tname);
}
free(base_name__);
return 0;
}
void InitEncoder(ProgData *pdata,EncData *enc_data_t,int buffer_ready){
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);
if(!pdata->args.overwrite)
IncrementalNaming(&(pdata)->args.filename);
enc_data_t->fp=fopen((pdata)->args.filename,"w");
if(enc_data_t->fp==NULL){
fprintf(stderr,"Cannot open file %s for writting!\n",
(pdata)->args.filename);
exit(13);
}
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);
}
}
if(!buffer_ready){
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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