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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
The mediastreamer library aims at providing modular media processing and I/O
for linphone, but also for any telephony application.
Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <config.h>
#ifdef HAVE_SPEEX
#include "msspeexenc.h"
#include "ms.h"
extern MSCodecInfo speex_info;
static MSSpeexEncClass * ms_speex_enc_class=NULL;
MSFilter * ms_speex_enc_new()
{
MSSpeexEnc *obj=g_new(MSSpeexEnc,1);
if (ms_speex_enc_class==NULL){
ms_speex_enc_class=g_new(MSSpeexEncClass,1);
ms_speex_enc_class_init(ms_speex_enc_class);
}
MS_FILTER(obj)->klass=MS_FILTER_CLASS(ms_speex_enc_class);
ms_speex_enc_init(MS_SPEEX_ENC(obj));
return MS_FILTER(obj);
}
void ms_speex_enc_init(MSSpeexEnc *obj)
{
ms_filter_init(MS_FILTER(obj));
MS_FILTER(obj)->infifos=obj->inf;
MS_FILTER(obj)->outqueues=obj->outq;
obj->inf[0]=NULL;
obj->outq[0]=NULL;
obj->frequency=8000;
obj->bitrate=30000;
obj->initialized=0;
}
void ms_speex_enc_init_core(MSSpeexEnc *obj,const SpeexMode *mode, gint bitrate)
{
int proc_type, proc_speed;
gchar *proc_vendor;
int tmp;
int frame_size;
obj->speex_state=speex_encoder_init(mode);
speex_bits_init(&obj->bits);
if (bitrate>0) {
bitrate++;
speex_encoder_ctl(obj->speex_state, SPEEX_SET_BITRATE, &bitrate);
g_message("Setting speex output bitrate less or equal than %i",bitrate-1);
}
proc_speed=ms_proc_get_speed();
proc_vendor=ms_proc_get_param("vendor_id");
if (proc_speed<0 || proc_vendor==NULL){
g_warning("Can't guess processor features: setting speex encoder to its lowest complexity.");
tmp=1;
speex_encoder_ctl(obj->speex_state,SPEEX_SET_COMPLEXITY,&tmp);
}else if ((proc_speed!=-1) && (proc_speed<200)){
g_warning("A cpu speed less than 200 Mhz is not enough: let's reduce the complexity of the speex codec.");
tmp=1;
speex_encoder_ctl(obj->speex_state,SPEEX_SET_COMPLEXITY,&tmp);
}else if (proc_vendor!=NULL) {
if (strncmp(proc_vendor,"GenuineIntel",strlen("GenuineIntel"))==0){
proc_type=ms_proc_get_type();
if (proc_type==5){
g_warning("A pentium I is not enough fast for speex codec in normal mode: let's reduce its complexity.");
tmp=1;
speex_encoder_ctl(obj->speex_state,SPEEX_SET_COMPLEXITY,&tmp);
}
}
g_free(proc_vendor);
}
/* guess the used input frame size */
speex_mode_query(mode, SPEEX_MODE_FRAME_SIZE, &frame_size);
MS_FILTER(obj)->r_mingran=frame_size*2;
ms_trace("ms_speex_init: using frame size of %i.",MS_FILTER(obj)->r_mingran);
obj->initialized=1;
}
/* must be called before the encoder is running*/
int ms_speex_enc_set_property(MSSpeexEnc *obj,int property,int *value)
{
if (obj->initialized){
/* we are called when speex is running !! forbid that! */
ms_warning("ms_speex_enc_set_property: cannot call this function when running!");
return -1;
}
switch(property){
case MS_FILTER_PROPERTY_FREQ:
obj->frequency=value[0];
break;
case MS_FILTER_PROPERTY_BITRATE: /* to specify max bitrate */
obj->bitrate=value[0];
break;
}
return 0;
}
void ms_speex_enc_setup(MSSpeexEnc *obj)
{
const SpeexMode *mode;
int quality;
g_message("Speex encoder setup: freq=%i",obj->frequency);
if ( obj->frequency< 16000) mode=&speex_nb_mode;
else mode=&speex_wb_mode;
ms_speex_enc_init_core(obj,mode,obj->bitrate);
}
void ms_speex_enc_unsetup(MSSpeexEnc *obj)
{
ms_speex_enc_uninit_core(obj);
}
void ms_speex_enc_class_init(MSSpeexEncClass *klass)
{
gint frame_size=0;
ms_filter_class_init(MS_FILTER_CLASS(klass));
/* we take the larger (wb) frame size */
speex_mode_query(&speex_wb_mode, SPEEX_MODE_FRAME_SIZE, &frame_size);
MS_FILTER_CLASS(klass)->process=(MSFilterProcessFunc)ms_speex_enc_process;
MS_FILTER_CLASS(klass)->destroy=(MSFilterDestroyFunc)ms_speex_enc_destroy;
MS_FILTER_CLASS(klass)->setup=(MSFilterSetupFunc)ms_speex_enc_setup;
MS_FILTER_CLASS(klass)->unsetup=(MSFilterSetupFunc)ms_speex_enc_unsetup;
MS_FILTER_CLASS(klass)->set_property=(MSFilterPropertyFunc)ms_speex_enc_set_property;
ms_filter_class_set_name(MS_FILTER_CLASS(klass),"SpeexEncoder");
MS_FILTER_CLASS(klass)->info=(MSFilterInfo*)&speex_info;
MS_FILTER_CLASS(klass)->max_finputs=1;
MS_FILTER_CLASS(klass)->max_qoutputs=1;
MS_FILTER_CLASS(klass)->r_maxgran=frame_size*2;
ms_trace("ms_speex_enc_class_init: r_maxgran is %i.",MS_FILTER_CLASS(klass)->r_maxgran);
}
void ms_speex_enc_uninit_core(MSSpeexEnc *obj)
{
if (obj->initialized){
speex_encoder_destroy(obj->speex_state);
obj->initialized=0;
}
}
void ms_speex_enc_destroy(MSSpeexEnc *obj)
{
ms_speex_enc_uninit_core(obj);
g_free(obj);
}
void ms_speex_enc_process(MSSpeexEnc *obj)
{
MSFifo *inf=obj->inf[0];
MSQueue *outq=obj->outq[0];
gint16 *input;
gint gran=MS_FILTER(obj)->r_mingran;
gint i;
MSMessage *m;
g_return_if_fail(inf!=NULL);
g_return_if_fail(outq!=NULL);
ms_fifo_get_read_ptr(inf,gran,(void**)&input);
g_return_if_fail(input!=NULL);
/* encode */
speex_bits_reset(&obj->bits);
speex_encode_int(obj->speex_state,(short*)input,&obj->bits);
m=ms_message_new(speex_bits_nbytes(&obj->bits));
m->size=speex_bits_write(&obj->bits,m->data,m->size);
ms_queue_put(outq,m);
}
#endif /* HAVE_SPEEX */
|
