summaryrefslogtreecommitdiff
path: root/src/rmd_encode_image_buffer.c
blob: 57ac5ce1a5562c36510c2c4ddb067e68da27c08c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
/******************************************************************************
*                            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_buffer.h"

#include "rmd_threads.h"
#include "rmd_types.h"

#include <errno.h>


void *rmdEncodeImageBuffer(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);
			pdata->avd += pdata->frametime;
			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) {
	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 (theora_encode_packetout(&enc_data->m_th_st, !pdata->running, &enc_data->m_ogg_pckt1) == 1) {
		pthread_mutex_lock(&pdata->libogg_mutex);
		ogg_stream_packetin(&enc_data->m_ogg_ts, &enc_data->m_ogg_pckt1);

		if (!pdata->running)
			enc_data->m_ogg_ts.e_o_s = 1;

		pdata->avd += pdata->frametime;
		pthread_mutex_unlock(&pdata->libogg_mutex);
	}
}
© All Rights Reserved