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Viewing changes to daemon/libs/pjproject-2.0.1/pjmedia/src/pjmedia/resample_port.c

  • Committer: Package Import Robot
  • Author(s): Mark Purcell
  • Date: 2014-01-28 18:23:36 UTC
  • mfrom: (1.1.11)
  • mto: This revision was merged to the branch mainline in revision 24.
  • Revision ID: package-import@ubuntu.com-20140128182336-3xenud1kbnwmf3mz
http://bugs.debian.org/735846
http://bugs.debian.org/727164
http://bugs.debian.org/718178
http://bugs.debian.org/736583
http://bugs.debian.org/722040
http://bugs.debian.org/736746
* New upstream release 
  - Fixes "New Upstream Release" (Closes: #735846)
  - Fixes "Ringtone does not stop" (Closes: #727164)
  - Fixes "[sflphone-kde] crash on startup" (Closes: #718178)
  - Fixes "sflphone GUI crashes when call is hung up" (Closes: #736583)
* Build-Depends: ensure GnuTLS 2.6
  - libucommon-dev (>= 6.0.7-1.1), libccrtp-dev (>= 2.0.6-3)
  - Fixes "FTBFS Build-Depends libgnutls{26,28}-dev" (Closes: #722040)
* Fix "boost 1.49 is going away" unversioned Build-Depends: (Closes: #736746)
* Add Build-Depends: libsndfile-dev, nepomuk-core-dev

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daemon/libs/pjproject-2.0.1/pjmedia/src/pjmedia/resample_port.c
1
 
/* $Id: resample_port.c 3664 2011-07-19 03:42:28Z nanang $ */
2
 
/*
3
 
 * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
4
 
 * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
5
 
 *
6
 
 * This program is free software; you can redistribute it and/or modify
7
 
 * it under the terms of the GNU General Public License as published by
8
 
 * the Free Software Foundation; either version 2 of the License, or
9
 
 * (at your option) any later version.
10
 
 *
11
 
 * This program is distributed in the hope that it will be useful,
12
 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14
 
 * GNU General Public License for more details.
15
 
 *
16
 
 * You should have received a copy of the GNU General Public License
17
 
 * along with this program; if not, write to the Free Software
18
 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19
 
 */
20
 
#include <pjmedia/resample.h>
21
 
#include <pjmedia/errno.h>
22
 
#include <pj/assert.h>
23
 
#include <pj/pool.h>
24
 
#include <pj/string.h>
25
 
 
26
 
 
27
 
#define BYTES_PER_SAMPLE        2
28
 
#define SIGNATURE               PJMEDIA_SIG_PORT_RESAMPLE
29
 
 
30
 
 
31
 
struct resample_port
32
 
{
33
 
    pjmedia_port         base;
34
 
    pjmedia_port        *dn_port;
35
 
    unsigned             options;
36
 
    pjmedia_resample    *resample_get;
37
 
    pjmedia_resample    *resample_put;
38
 
    pj_int16_t          *get_buf;
39
 
    pj_int16_t          *put_buf;
40
 
};
41
 
 
42
 
 
43
 
 
44
 
static pj_status_t resample_put_frame(pjmedia_port *this_port,
45
 
                                      pjmedia_frame *frame);
46
 
static pj_status_t resample_get_frame(pjmedia_port *this_port,
47
 
                                      pjmedia_frame *frame);
48
 
static pj_status_t resample_destroy(pjmedia_port *this_port);
49
 
 
50
 
 
51
 
 
52
 
PJ_DEF(pj_status_t) pjmedia_resample_port_create( pj_pool_t *pool,
53
 
                                                  pjmedia_port *dn_port,
54
 
                                                  unsigned clock_rate,
55
 
                                                  unsigned opt,
56
 
                                                  pjmedia_port **p_port  )
57
 
{
58
 
    const pj_str_t name = pj_str("resample");
59
 
    struct resample_port *rport;
60
 
    pjmedia_audio_format_detail *d_afd, *r_afd;
61
 
    pj_status_t status;
62
 
 
63
 
    /* Validate arguments. */
64
 
    PJ_ASSERT_RETURN(pool && dn_port && clock_rate && p_port, PJ_EINVAL);
65
 
 
66
 
    /* Only supports 16bit samples per frame */
67
 
    PJ_ASSERT_RETURN(PJMEDIA_PIA_BITS(&dn_port->info) == 16, PJMEDIA_ENCBITS);
68
 
 
69
 
    d_afd = pjmedia_format_get_audio_format_detail(&dn_port->info.fmt, 1);
70
 
 
71
 
    /* Create and initialize port. */
72
 
    rport = PJ_POOL_ZALLOC_T(pool, struct resample_port);
73
 
    PJ_ASSERT_RETURN(rport != NULL, PJ_ENOMEM);
74
 
 
75
 
    pjmedia_port_info_init(&rport->base.info, &name, SIGNATURE, clock_rate,
76
 
                           d_afd->channel_count, BYTES_PER_SAMPLE * 8,
77
 
                           clock_rate * d_afd->frame_time_usec / 1000000);
78
 
 
79
 
    rport->dn_port = dn_port;
80
 
    rport->options = opt;
81
 
 
82
 
    r_afd = pjmedia_format_get_audio_format_detail(&rport->base.info.fmt, 1);
83
 
 
84
 
    /* Create buffers.
85
 
     * We need separate buffer for get_frame() and put_frame() since
86
 
     * both functions may run simultaneously.
87
 
     */
88
 
    rport->get_buf = (pj_int16_t*)
89
 
                     pj_pool_alloc(pool, PJMEDIA_PIA_AVG_FSZ(&dn_port->info));
90
 
    PJ_ASSERT_RETURN(rport->get_buf != NULL, PJ_ENOMEM);
91
 
 
92
 
    rport->put_buf = (pj_int16_t*)
93
 
                     pj_pool_alloc(pool, PJMEDIA_PIA_AVG_FSZ(&dn_port->info));
94
 
    PJ_ASSERT_RETURN(rport->put_buf != NULL, PJ_ENOMEM);
95
 
 
96
 
 
97
 
    /* Create "get_frame" resample */
98
 
    status = pjmedia_resample_create(pool,
99
 
                                     (opt&PJMEDIA_RESAMPLE_USE_LINEAR)==0,
100
 
                                     (opt&PJMEDIA_RESAMPLE_USE_SMALL_FILTER)==0,
101
 
                                     d_afd->channel_count,
102
 
                                     d_afd->clock_rate,
103
 
                                     r_afd->clock_rate,
104
 
                                     PJMEDIA_PIA_SPF(&dn_port->info),
105
 
                                     &rport->resample_get);
106
 
    if (status != PJ_SUCCESS)
107
 
        return status;
108
 
 
109
 
    /* Create "put_frame" resample */
110
 
    status = pjmedia_resample_create(pool,
111
 
                                     (opt&PJMEDIA_RESAMPLE_USE_LINEAR)==0,
112
 
                                     (opt&PJMEDIA_RESAMPLE_USE_SMALL_FILTER)==0,
113
 
                                     d_afd->channel_count,
114
 
                                     r_afd->clock_rate,
115
 
                                     d_afd->clock_rate,
116
 
                                     PJMEDIA_PIA_SPF(&rport->base.info),
117
 
                                     &rport->resample_put);
118
 
 
119
 
    /* Media port interface */
120
 
    rport->base.get_frame = &resample_get_frame;
121
 
    rport->base.put_frame = &resample_put_frame;
122
 
    rport->base.on_destroy = &resample_destroy;
123
 
 
124
 
 
125
 
    /* Done */
126
 
    *p_port = &rport->base;
127
 
 
128
 
    return PJ_SUCCESS;
129
 
}
130
 
 
131
 
 
132
 
 
133
 
static pj_status_t resample_put_frame(pjmedia_port *this_port,
134
 
                                      pjmedia_frame *frame)
135
 
{
136
 
    struct resample_port *rport = (struct resample_port*) this_port;
137
 
    pjmedia_frame downstream_frame;
138
 
 
139
 
    /* Return if we don't have downstream port. */
140
 
    if (rport->dn_port == NULL) {
141
 
        return PJ_SUCCESS;
142
 
    }
143
 
 
144
 
    if (frame->type == PJMEDIA_FRAME_TYPE_AUDIO) {
145
 
        pjmedia_resample_run( rport->resample_put,
146
 
                              (const pj_int16_t*) frame->buf,
147
 
                              rport->put_buf);
148
 
 
149
 
        downstream_frame.buf = rport->put_buf;
150
 
        downstream_frame.size = PJMEDIA_PIA_AVG_FSZ(&rport->dn_port->info);
151
 
    } else {
152
 
        downstream_frame.buf = frame->buf;
153
 
        downstream_frame.size = frame->size;
154
 
    }
155
 
 
156
 
    downstream_frame.type = frame->type;
157
 
    downstream_frame.timestamp.u64 = frame->timestamp.u64;
158
 
 
159
 
    return pjmedia_port_put_frame( rport->dn_port, &downstream_frame );
160
 
}
161
 
 
162
 
 
163
 
 
164
 
static pj_status_t resample_get_frame(pjmedia_port *this_port,
165
 
                                      pjmedia_frame *frame)
166
 
{
167
 
    struct resample_port *rport = (struct resample_port*) this_port;
168
 
    pjmedia_frame tmp_frame;
169
 
    pj_status_t status;
170
 
 
171
 
    /* Return silence if we don't have downstream port */
172
 
    if (rport->dn_port == NULL) {
173
 
        pj_bzero(frame->buf, frame->size);
174
 
        return PJ_SUCCESS;
175
 
    }
176
 
 
177
 
    tmp_frame.buf = rport->get_buf;
178
 
    tmp_frame.size = PJMEDIA_PIA_AVG_FSZ(&rport->dn_port->info);
179
 
    tmp_frame.timestamp.u64 = frame->timestamp.u64;
180
 
    tmp_frame.type = PJMEDIA_FRAME_TYPE_AUDIO;
181
 
 
182
 
    status = pjmedia_port_get_frame( rport->dn_port, &tmp_frame);
183
 
    if (status != PJ_SUCCESS)
184
 
        return status;
185
 
 
186
 
    if (tmp_frame.type != PJMEDIA_FRAME_TYPE_AUDIO) {
187
 
        frame->type = tmp_frame.type;
188
 
        frame->timestamp = tmp_frame.timestamp;
189
 
        /* Copy whatever returned as long as the buffer size is enough */
190
 
        frame->size = tmp_frame.size < PJMEDIA_PIA_AVG_FSZ(&rport->base.info) ?
191
 
                      tmp_frame.size : PJMEDIA_PIA_AVG_FSZ(&rport->base.info);
192
 
        if (tmp_frame.size) {
193
 
            pjmedia_copy_samples((pj_int16_t*)frame->buf,
194
 
                                 (const pj_int16_t*)tmp_frame.buf,
195
 
                                 frame->size >> 1);
196
 
        }
197
 
        return PJ_SUCCESS;
198
 
    }
199
 
 
200
 
    pjmedia_resample_run( rport->resample_get,
201
 
                          (const pj_int16_t*) tmp_frame.buf,
202
 
                          (pj_int16_t*) frame->buf);
203
 
 
204
 
    frame->size = PJMEDIA_PIA_AVG_FSZ(&rport->base.info);
205
 
    frame->type = PJMEDIA_FRAME_TYPE_AUDIO;
206
 
 
207
 
    return PJ_SUCCESS;
208
 
}
209
 
 
210
 
 
211
 
static pj_status_t resample_destroy(pjmedia_port *this_port)
212
 
{
213
 
    struct resample_port *rport = (struct resample_port*) this_port;
214
 
 
215
 
    if ((rport->options & PJMEDIA_RESAMPLE_DONT_DESTROY_DN)==0) {
216
 
        pjmedia_port_destroy(rport->dn_port);
217
 
        rport->dn_port = NULL;
218
 
    }
219
 
 
220
 
    if (rport->resample_get) {
221
 
        pjmedia_resample_destroy(rport->resample_get);
222
 
        rport->resample_get = NULL;
223
 
    }
224
 
 
225
 
    if (rport->resample_put) {
226
 
        pjmedia_resample_destroy(rport->resample_put);
227
 
        rport->resample_put = NULL;
228
 
    }
229
 
 
230
 
    return PJ_SUCCESS;
231
 
}