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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 *EncodeSoundBuffer(ProgData *pdata){
int sampread=pdata->periodsize;
pthread_mutex_t smut;
pthread_mutex_init(&smut,NULL);
pdata->v_encoding_clean=0;
while((pdata->running)){
float **vorbis_buffer;
int count=0,i,j;
SndBuffer *buff;
if(Paused){
pthread_mutex_t tmut;
pthread_mutex_init(&tmut,NULL);
pthread_cond_wait(&pdata->pause_cond,&tmut);
}
if(pdata->sound_buffer==NULL){
pdata->v_enc_thread_waiting=1;
pthread_cond_wait(&pdata->sound_data_read,&smut);
pdata->v_enc_thread_waiting=0;
}
if(pdata->sound_buffer==NULL || !pdata->running)
break;
pthread_mutex_lock(&pdata->sound_buffer_mutex);
buff=pdata->sound_buffer;
//advance the list
pdata->sound_buffer=pdata->sound_buffer->next;
pthread_mutex_unlock(&pdata->sound_buffer_mutex);
// pthread_mutex_lock(&pdata->libvorbis_mutex);
vorbis_buffer=vorbis_analysis_buffer(&pdata->enc_data->m_vo_dsp,sampread);
for(i=0;i<sampread;i++){
for(j=0;j<pdata->args.channels;j++){
vorbis_buffer[j][i]=((buff->data[count+1]<<8)|
(0x00ff&(int)buff->data[count]))/32768.f;
count+=2;
}
}
vorbis_analysis_wrote(&pdata->enc_data->m_vo_dsp,sampread);
pthread_mutex_lock(&pdata->libogg_mutex);
while(vorbis_analysis_blockout(&pdata->enc_data->m_vo_dsp,&pdata->enc_data->m_vo_block)==1){
vorbis_analysis(&pdata->enc_data->m_vo_block,NULL);
vorbis_bitrate_addblock(&pdata->enc_data->m_vo_block);
while(vorbis_bitrate_flushpacket(&pdata->enc_data->m_vo_dsp,&pdata->enc_data->m_ogg_pckt2)){
ogg_stream_packetin(&pdata->enc_data->m_ogg_vs,&pdata->enc_data->m_ogg_pckt2);
}
}
pthread_mutex_unlock(&pdata->libogg_mutex);
// pthread_mutex_unlock(&pdata->libvorbis_mutex);
pdata->avd-=pdata->periodtime;
free(buff->data);
free(buff);
}
pdata->v_encoding_clean=1;
pthread_cond_signal(&pdata->vorbis_lib_clean);
// SyncEncodeSoundBuffer(pdata,NULL);
pthread_exit(&errno);
}
void SyncEncodeSoundBuffer(ProgData *pdata,signed char *buff){
float **vorbis_buffer;
int count=0,i,j;
int sampread=(buff!=NULL)?pdata->periodsize:0;
// pthread_mutex_lock(&pdata->libvorbis_mutex);
vorbis_buffer=vorbis_analysis_buffer(&pdata->enc_data->m_vo_dsp,sampread);
for(i=0;i<sampread;i++){
for(j=0;j<pdata->args.channels;j++){
vorbis_buffer[j][i]=((buff[count+1]<<8)|
(0x00ff&(int)buff[count]))/32768.f;
count+=2;
}
}
vorbis_analysis_wrote(&pdata->enc_data->m_vo_dsp,sampread);
pthread_mutex_lock(&pdata->libogg_mutex);
while(vorbis_analysis_blockout(&pdata->enc_data->m_vo_dsp,&pdata->enc_data->m_vo_block)==1){
vorbis_analysis(&pdata->enc_data->m_vo_block,NULL);
vorbis_bitrate_addblock(&pdata->enc_data->m_vo_block);
while(vorbis_bitrate_flushpacket(&pdata->enc_data->m_vo_dsp,&pdata->enc_data->m_ogg_pckt2)){
ogg_stream_packetin(&pdata->enc_data->m_ogg_vs,&pdata->enc_data->m_ogg_pckt2);
}
}
pthread_mutex_unlock(&pdata->libogg_mutex);
if(!pdata->running)pdata->enc_data->m_ogg_vs.e_o_s=1;
// pthread_mutex_unlock(&pdata->libvorbis_mutex);
pdata->avd-=pdata->periodtime;
}
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