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/******************************************************************************
* recordMyDesktop *
*******************************************************************************
* *
* Copyright (C) 2006,2007,2008 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 "config.h"
#include "rmd_encode_image_buffers.h"
#include "rmd_threads.h"
#include "rmd_types.h"
#include <errno.h>
void *rmdEncodeImageBuffers(ProgData *pdata)
{
unsigned int encode_frameno = 0, last_encode_frameno = 0;
rmdThreadsSetName("rmdEncodeImages");
pdata->th_encoding_clean = 0;
while (pdata->running) {
EncData *enc_data = pdata->enc_data;
unsigned int n_frames;
int r;
pthread_mutex_lock(&pdata->pause_mutex);
while (pdata->paused)
pthread_cond_wait(&pdata->pause_cond, &pdata->pause_mutex);
pthread_mutex_unlock(&pdata->pause_mutex);
pthread_mutex_lock(&pdata->img_buff_ready_mutex);
while (pdata->running && encode_frameno >= pdata->capture_frameno)
pthread_cond_wait(&pdata->image_buffer_ready, &pdata->img_buff_ready_mutex);
encode_frameno = pdata->capture_frameno;
pthread_mutex_unlock(&pdata->img_buff_ready_mutex);
pthread_mutex_lock(&pdata->yuv_mutex);
r = theora_encode_YUVin(&enc_data->m_th_st, &enc_data->yuv);
pthread_mutex_unlock(&pdata->yuv_mutex);
if (r) {
fprintf(stderr, "Encoder not ready!\n");
continue;
}
n_frames = encode_frameno - last_encode_frameno;
if (n_frames > 1)
theora_control( &enc_data->m_th_st,
TH_ENCCTL_SET_DUP_COUNT,
(void *)&(int){n_frames - 1},
sizeof(int));
while (theora_encode_packetout(&enc_data->m_th_st, 0, &enc_data->m_ogg_pckt1) > 0) {
pthread_mutex_lock(&pdata->libogg_mutex);
ogg_stream_packetin(&enc_data->m_ogg_ts, &enc_data->m_ogg_pckt1);
pthread_mutex_unlock(&pdata->libogg_mutex);
}
last_encode_frameno = encode_frameno;
}
//last packet
pthread_mutex_lock(&pdata->theora_lib_mutex);
pdata->th_encoding_clean = 1;
pthread_cond_signal(&pdata->theora_lib_clean);
pthread_mutex_unlock(&pdata->theora_lib_mutex);
pthread_exit(&errno);
}
//this function is meant to be called normally
//not through a thread of it's own
void rmdSyncEncodeImageBuffer(ProgData *pdata, unsigned int n_frames)
{
EncData *enc_data = pdata->enc_data;
if (theora_encode_YUVin(&enc_data->m_th_st, &enc_data->yuv)) {
fprintf(stderr, "Encoder not ready!\n");
return;
}
if (n_frames > 1)
theora_control( &enc_data->m_th_st,
TH_ENCCTL_SET_DUP_COUNT,
(void *)&(int){n_frames - 1},
sizeof(int));
while (theora_encode_packetout(&enc_data->m_th_st, 0, &enc_data->m_ogg_pckt1) > 0) {
pthread_mutex_lock(&pdata->libogg_mutex);
ogg_stream_packetin(&enc_data->m_ogg_ts, &enc_data->m_ogg_pckt1);
/* TODO: this is the only real difference from what's open-coded above,
* investigate why this is done this way and make the thread just call
* this function instead of duplicating it.
*/
if (!pdata->running)
enc_data->m_ogg_ts.e_o_s = 1;
pthread_mutex_unlock(&pdata->libogg_mutex);
}
pdata->avd += pdata->frametime_us * n_frames;
}
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