/*********************************************************************************
*                             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);
    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)
            pthread_cond_wait(&pdata->sound_data_read,&smut);

        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);

        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);

        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)){
                pthread_mutex_lock(&pdata->libogg_mutex);
                ogg_stream_packetin(&pdata->enc_data->m_ogg_vs,&pdata->enc_data->m_ogg_pckt2);
                pthread_mutex_unlock(&pdata->libogg_mutex);
            }
        }
        pdata->avd-=pdata->periodtime;

        free(buff->data);
        free(buff);
    }

    vorbis_analysis_wrote(&pdata->enc_data->m_vo_dsp,0);
//     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_exit(&errno);
}

void SyncEncodeSoundBuffer(ProgData *pdata,signed char *buff){
    float **vorbis_buffer;
    int count=0,i,j;
    int sampread=pdata->periodsize;
    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);

    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)){
            pthread_mutex_lock(&pdata->libogg_mutex);
            ogg_stream_packetin(&pdata->enc_data->m_ogg_vs,&pdata->enc_data->m_ogg_pckt2);
            pthread_mutex_unlock(&pdata->libogg_mutex);
        }
    }
    pdata->avd-=pdata->periodtime;
}