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Viewing changes to daemon/libs/pjproject-2.1.0/pjmedia/src/pjmedia-audiodev/legacy_dev.c

  • Committer: Package Import Robot
  • Author(s): Jonathan Riddell
  • Date: 2015-01-07 14:51:16 UTC
  • mfrom: (4.3.5 sid)
  • Revision ID: package-import@ubuntu.com-20150107145116-yxnafinf4lrdvrmx
Tags: 1.4.1-0.1ubuntu1
* Merge with Debian, remaining changes:
 - Drop soprano, nepomuk build-dep
* Drop ubuntu patches, now upstream

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daemon/libs/pjproject-2.1.0/pjmedia/src/pjmedia-audiodev/legacy_dev.c
1
 
/* $Id: legacy_dev.c 3553 2011-05-05 06:14:19Z nanang $ */
2
 
/* 
3
 
 * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
4
 
 *
5
 
 * This program is free software; you can redistribute it and/or modify
6
 
 * it under the terms of the GNU General Public License as published by
7
 
 * the Free Software Foundation; either version 2 of the License, or
8
 
 * (at your option) any later version.
9
 
 *
10
 
 * This program is distributed in the hope that it will be useful,
11
 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12
 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13
 
 * GNU General Public License for more details.
14
 
 *
15
 
 * You should have received a copy of the GNU General Public License
16
 
 * along with this program; if not, write to the Free Software
17
 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
18
 
 */
19
 
#include <pjmedia-audiodev/audiodev_imp.h>
20
 
#include <pjmedia/sound.h>
21
 
#include <pj/assert.h>
22
 
 
23
 
#if PJMEDIA_AUDIO_DEV_HAS_LEGACY_DEVICE
24
 
 
25
 
#define THIS_FILE                       "legacy_dev.c"
26
 
 
27
 
/* Legacy devices factory */
28
 
struct legacy_factory
29
 
{
30
 
    pjmedia_aud_dev_factory      base;
31
 
    pj_pool_t                   *pool;
32
 
    pj_pool_factory             *pf;
33
 
};
34
 
 
35
 
 
36
 
struct legacy_stream
37
 
{
38
 
    pjmedia_aud_stream   base;
39
 
 
40
 
    pj_pool_t           *pool;
41
 
    pjmedia_aud_param    param;
42
 
    pjmedia_snd_stream  *snd_strm;
43
 
    pjmedia_aud_play_cb  user_play_cb;
44
 
    pjmedia_aud_rec_cb   user_rec_cb;
45
 
    void                *user_user_data;
46
 
    unsigned             input_latency;
47
 
    unsigned             output_latency;
48
 
};
49
 
 
50
 
 
51
 
/* Prototypes */
52
 
static pj_status_t factory_init(pjmedia_aud_dev_factory *f);
53
 
static pj_status_t factory_destroy(pjmedia_aud_dev_factory *f);
54
 
static pj_status_t factory_refresh(pjmedia_aud_dev_factory *f);
55
 
static unsigned    factory_get_dev_count(pjmedia_aud_dev_factory *f);
56
 
static pj_status_t factory_get_dev_info(pjmedia_aud_dev_factory *f, 
57
 
                                        unsigned index,
58
 
                                        pjmedia_aud_dev_info *info);
59
 
static pj_status_t factory_default_param(pjmedia_aud_dev_factory *f,
60
 
                                         unsigned index,
61
 
                                         pjmedia_aud_param *param);
62
 
static pj_status_t factory_create_stream(pjmedia_aud_dev_factory *f,
63
 
                                         const pjmedia_aud_param *param,
64
 
                                         pjmedia_aud_rec_cb rec_cb,
65
 
                                         pjmedia_aud_play_cb play_cb,
66
 
                                         void *user_data,
67
 
                                         pjmedia_aud_stream **p_aud_strm);
68
 
 
69
 
static pj_status_t stream_get_param(pjmedia_aud_stream *strm,
70
 
                                    pjmedia_aud_param *param);
71
 
static pj_status_t stream_get_cap(pjmedia_aud_stream *strm,
72
 
                                  pjmedia_aud_dev_cap cap,
73
 
                                  void *value);
74
 
static pj_status_t stream_set_cap(pjmedia_aud_stream *strm,
75
 
                                  pjmedia_aud_dev_cap cap,
76
 
                                  const void *value);
77
 
static pj_status_t stream_start(pjmedia_aud_stream *strm);
78
 
static pj_status_t stream_stop(pjmedia_aud_stream *strm);
79
 
static pj_status_t stream_destroy(pjmedia_aud_stream *strm);
80
 
 
81
 
 
82
 
/* Operations */
83
 
static pjmedia_aud_dev_factory_op factory_op =
84
 
{
85
 
    &factory_init,
86
 
    &factory_destroy,
87
 
    &factory_get_dev_count,
88
 
    &factory_get_dev_info,
89
 
    &factory_default_param,
90
 
    &factory_create_stream,
91
 
    &factory_refresh
92
 
};
93
 
 
94
 
static pjmedia_aud_stream_op stream_op = 
95
 
{
96
 
    &stream_get_param,
97
 
    &stream_get_cap,
98
 
    &stream_set_cap,
99
 
    &stream_start,
100
 
    &stream_stop,
101
 
    &stream_destroy
102
 
};
103
 
 
104
 
 
105
 
/****************************************************************************
106
 
 * Factory operations
107
 
 */
108
 
 
109
 
/*
110
 
 * Init legacy audio driver.
111
 
 */
112
 
pjmedia_aud_dev_factory* pjmedia_legacy_factory(pj_pool_factory *pf)
113
 
{
114
 
    struct legacy_factory *f;
115
 
    pj_pool_t *pool;
116
 
 
117
 
    pool = pj_pool_create(pf, "legacy-snd", 512, 512, NULL);
118
 
    f = PJ_POOL_ZALLOC_T(pool, struct legacy_factory);
119
 
    f->pf = pf;
120
 
    f->pool = pool;
121
 
    f->base.op = &factory_op;
122
 
 
123
 
    return &f->base;
124
 
}
125
 
 
126
 
 
127
 
/* API: init factory */
128
 
static pj_status_t factory_init(pjmedia_aud_dev_factory *f)
129
 
{
130
 
    struct legacy_factory *wf = (struct legacy_factory*)f;
131
 
 
132
 
    return pjmedia_snd_init(wf->pf);
133
 
}
134
 
 
135
 
/* API: destroy factory */
136
 
static pj_status_t factory_destroy(pjmedia_aud_dev_factory *f)
137
 
{
138
 
    struct legacy_factory *wf = (struct legacy_factory*)f;
139
 
    pj_status_t status;
140
 
 
141
 
    status = pjmedia_snd_deinit();
142
 
 
143
 
    if (status == PJ_SUCCESS) {
144
 
        pj_pool_t *pool = wf->pool;
145
 
        wf->pool = NULL;
146
 
        pj_pool_release(pool);
147
 
    }
148
 
 
149
 
    return status;
150
 
}
151
 
 
152
 
/* API: refresh the list of devices */
153
 
static pj_status_t factory_refresh(pjmedia_aud_dev_factory *f)
154
 
{
155
 
    PJ_UNUSED_ARG(f);
156
 
    return PJ_ENOTSUP;
157
 
}
158
 
 
159
 
/* API: get number of devices */
160
 
static unsigned factory_get_dev_count(pjmedia_aud_dev_factory *f)
161
 
{
162
 
    PJ_UNUSED_ARG(f);
163
 
    return pjmedia_snd_get_dev_count();
164
 
}
165
 
 
166
 
/* API: get device info */
167
 
static pj_status_t factory_get_dev_info(pjmedia_aud_dev_factory *f, 
168
 
                                        unsigned index,
169
 
                                        pjmedia_aud_dev_info *info)
170
 
{
171
 
    const pjmedia_snd_dev_info *si = 
172
 
        pjmedia_snd_get_dev_info(index);;
173
 
 
174
 
    PJ_UNUSED_ARG(f);
175
 
 
176
 
    if (si == NULL)
177
 
        return PJMEDIA_EAUD_INVDEV;
178
 
 
179
 
    pj_bzero(info, sizeof(*info));
180
 
    pj_ansi_strncpy(info->name, si->name, sizeof(info->name));
181
 
    info->name[sizeof(info->name)-1] = '\0';
182
 
    info->input_count = si->input_count;
183
 
    info->output_count = si->output_count;
184
 
    info->default_samples_per_sec = si->default_samples_per_sec;
185
 
    pj_ansi_strcpy(info->driver, "legacy");
186
 
    info->caps = PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY | 
187
 
                 PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY;
188
 
 
189
 
    return PJ_SUCCESS;
190
 
}
191
 
 
192
 
/* API: create default device parameter */
193
 
static pj_status_t factory_default_param(pjmedia_aud_dev_factory *f,
194
 
                                         unsigned index,
195
 
                                         pjmedia_aud_param *param)
196
 
{
197
 
    pjmedia_aud_dev_info di;
198
 
    pj_status_t status;
199
 
 
200
 
    status = factory_get_dev_info(f, index, &di);
201
 
    if (status != PJ_SUCCESS)
202
 
        return status;
203
 
 
204
 
    pj_bzero(param, sizeof(*param));
205
 
    if (di.input_count && di.output_count) {
206
 
        param->dir = PJMEDIA_DIR_CAPTURE_PLAYBACK;
207
 
        param->rec_id = index;
208
 
        param->play_id = index;
209
 
    } else if (di.input_count) {
210
 
        param->dir = PJMEDIA_DIR_CAPTURE;
211
 
        param->rec_id = index;
212
 
        param->play_id = PJMEDIA_AUD_INVALID_DEV;
213
 
    } else if (di.output_count) {
214
 
        param->dir = PJMEDIA_DIR_PLAYBACK;
215
 
        param->play_id = index;
216
 
        param->rec_id = PJMEDIA_AUD_INVALID_DEV;
217
 
    } else {
218
 
        return PJMEDIA_EAUD_INVDEV;
219
 
    }
220
 
 
221
 
    param->clock_rate = di.default_samples_per_sec;
222
 
    param->channel_count = 1;
223
 
    param->samples_per_frame = di.default_samples_per_sec * 20 / 1000;
224
 
    param->bits_per_sample = 16;
225
 
    param->flags = di.caps;
226
 
    param->input_latency_ms = PJMEDIA_SND_DEFAULT_REC_LATENCY;
227
 
    param->output_latency_ms = PJMEDIA_SND_DEFAULT_PLAY_LATENCY;
228
 
 
229
 
    return PJ_SUCCESS;
230
 
}
231
 
 
232
 
/* Callback from legacy sound device */
233
 
static pj_status_t snd_play_cb(/* in */   void *user_data,
234
 
                               /* in */   pj_uint32_t timestamp,
235
 
                               /* out */  void *output,
236
 
                               /* out */  unsigned size)
237
 
{
238
 
    struct legacy_stream *strm = (struct legacy_stream*)user_data;
239
 
    pjmedia_frame frame;
240
 
    pj_status_t status;
241
 
 
242
 
    frame.type = PJMEDIA_FRAME_TYPE_AUDIO;
243
 
    frame.buf = output;
244
 
    frame.size = size;
245
 
    frame.timestamp.u64 = timestamp;
246
 
 
247
 
    status = strm->user_play_cb(strm->user_user_data, &frame);
248
 
    if (status != PJ_SUCCESS)
249
 
        return status;
250
 
 
251
 
    if (frame.type != PJMEDIA_FRAME_TYPE_AUDIO) {
252
 
        pj_bzero(output, size);
253
 
    }
254
 
 
255
 
    return PJ_SUCCESS;
256
 
}
257
 
 
258
 
/* Callback from legacy sound device */
259
 
static pj_status_t snd_rec_cb( /* in */   void *user_data,
260
 
                               /* in */   pj_uint32_t timestamp,
261
 
                               /* in */   void *input,
262
 
                               /* in*/    unsigned size)
263
 
{
264
 
    struct legacy_stream *strm = (struct legacy_stream*)user_data;
265
 
    pjmedia_frame frame;
266
 
    
267
 
    frame.type = PJMEDIA_FRAME_TYPE_AUDIO;
268
 
    frame.buf = input;
269
 
    frame.size = size;
270
 
    frame.timestamp.u64 = timestamp;
271
 
 
272
 
    return strm->user_rec_cb(strm->user_user_data, &frame);
273
 
}
274
 
 
275
 
/* API: create stream */
276
 
static pj_status_t factory_create_stream(pjmedia_aud_dev_factory *f,
277
 
                                         const pjmedia_aud_param *param,
278
 
                                         pjmedia_aud_rec_cb rec_cb,
279
 
                                         pjmedia_aud_play_cb play_cb,
280
 
                                         void *user_data,
281
 
                                         pjmedia_aud_stream **p_aud_strm)
282
 
{
283
 
    struct legacy_factory *wf = (struct legacy_factory*)f;
284
 
    pj_pool_t *pool;
285
 
    struct legacy_stream *strm;
286
 
    pj_status_t status;
287
 
 
288
 
    /* Initialize our stream data */
289
 
    pool = pj_pool_create(wf->pf, "legacy-snd", 512, 512, NULL);
290
 
    strm = PJ_POOL_ZALLOC_T(pool, struct legacy_stream);
291
 
    strm->pool = pool;
292
 
    strm->user_rec_cb = rec_cb;
293
 
    strm->user_play_cb = play_cb;
294
 
    strm->user_user_data = user_data;
295
 
    pj_memcpy(&strm->param, param, sizeof(*param));
296
 
 
297
 
    /* Set the latency if wanted */
298
 
    if (param->dir==PJMEDIA_DIR_CAPTURE_PLAYBACK &&
299
 
        param->flags & (PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY |
300
 
                        PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY))
301
 
    {
302
 
        PJ_ASSERT_RETURN(param->input_latency_ms &&
303
 
                         param->output_latency_ms,
304
 
                         PJMEDIA_EAUD_BADLATENCY);
305
 
 
306
 
        strm->input_latency = param->input_latency_ms;
307
 
        strm->output_latency = param->output_latency_ms;
308
 
 
309
 
        status = pjmedia_snd_set_latency(param->input_latency_ms,
310
 
                                         param->output_latency_ms);
311
 
        if (status != PJ_SUCCESS) {
312
 
            pj_pool_release(pool);
313
 
            return status;
314
 
        }
315
 
    }
316
 
 
317
 
    /* Open the stream */
318
 
    if (param->dir == PJMEDIA_DIR_CAPTURE) {
319
 
        status = pjmedia_snd_open_rec(param->rec_id,
320
 
                                      param->clock_rate,
321
 
                                      param->channel_count,
322
 
                                      param->samples_per_frame,
323
 
                                      param->bits_per_sample,
324
 
                                      &snd_rec_cb,
325
 
                                      strm,
326
 
                                      &strm->snd_strm);
327
 
    } else if (param->dir == PJMEDIA_DIR_PLAYBACK) {
328
 
        status = pjmedia_snd_open_player(param->play_id,
329
 
                                         param->clock_rate,
330
 
                                         param->channel_count,
331
 
                                         param->samples_per_frame,
332
 
                                         param->bits_per_sample,
333
 
                                         &snd_play_cb,
334
 
                                         strm,
335
 
                                         &strm->snd_strm);
336
 
 
337
 
    } else if (param->dir == PJMEDIA_DIR_CAPTURE_PLAYBACK) {
338
 
        status = pjmedia_snd_open(param->rec_id,
339
 
                                  param->play_id,
340
 
                                  param->clock_rate,
341
 
                                  param->channel_count,
342
 
                                  param->samples_per_frame,
343
 
                                  param->bits_per_sample,
344
 
                                  &snd_rec_cb,
345
 
                                  &snd_play_cb,
346
 
                                  strm,
347
 
                                  &strm->snd_strm);
348
 
    } else {
349
 
        pj_assert(!"Invalid direction!");
350
 
        return PJ_EINVAL;
351
 
    }
352
 
 
353
 
    if (status != PJ_SUCCESS) {
354
 
        pj_pool_release(pool);
355
 
        return status;
356
 
    }
357
 
 
358
 
    *p_aud_strm = &strm->base;
359
 
    return PJ_SUCCESS;
360
 
}
361
 
 
362
 
/* API: Get stream info. */
363
 
static pj_status_t stream_get_param(pjmedia_aud_stream *s,
364
 
                                    pjmedia_aud_param *pi)
365
 
{
366
 
    struct legacy_stream *strm = (struct legacy_stream*)s;
367
 
    PJ_ASSERT_RETURN(strm && pi, PJ_EINVAL);
368
 
 
369
 
    pj_memcpy(pi, &strm->param, sizeof(*pi));
370
 
 
371
 
    if (strm->input_latency) {
372
 
        pi->flags |= PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY;
373
 
        pi->input_latency_ms = strm->input_latency;
374
 
    } else {
375
 
        pi->flags &= ~PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY;
376
 
    }
377
 
 
378
 
    if (strm->output_latency) {
379
 
        pi->flags |= PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY;
380
 
        pi->output_latency_ms = strm->output_latency;
381
 
    } else {
382
 
        pi->flags &= ~PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY;
383
 
    }
384
 
 
385
 
    return PJ_SUCCESS;
386
 
}
387
 
 
388
 
/* API: get capability */
389
 
static pj_status_t stream_get_cap(pjmedia_aud_stream *s,
390
 
                                  pjmedia_aud_dev_cap cap,
391
 
                                  void *pval)
392
 
{
393
 
    struct legacy_stream *strm = (struct legacy_stream*)s;
394
 
 
395
 
    PJ_ASSERT_RETURN(strm && pval, PJ_EINVAL);
396
 
 
397
 
    if (cap==PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY && 
398
 
        (strm->param.dir & PJMEDIA_DIR_CAPTURE)) 
399
 
    {
400
 
        /* Recording latency */
401
 
        if (strm->input_latency) {
402
 
            *(unsigned*)pval = strm->input_latency;
403
 
            return PJ_SUCCESS;
404
 
        } else {
405
 
            return PJMEDIA_EAUD_INVCAP;
406
 
        }
407
 
 
408
 
    } else if (cap==PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY  && 
409
 
               (strm->param.dir & PJMEDIA_DIR_PLAYBACK))
410
 
    {
411
 
        /* Playback latency */
412
 
        if (strm->output_latency) {
413
 
            *(unsigned*)pval = strm->output_latency;
414
 
            return PJ_SUCCESS;
415
 
        } else {
416
 
            return PJMEDIA_EAUD_INVCAP;
417
 
        }
418
 
    } else {
419
 
        return PJMEDIA_EAUD_INVCAP;
420
 
    }
421
 
}
422
 
 
423
 
/* API: set capability */
424
 
static pj_status_t stream_set_cap(pjmedia_aud_stream *s,
425
 
                                  pjmedia_aud_dev_cap cap,
426
 
                                  const void *pval)
427
 
{
428
 
    PJ_UNUSED_ARG(s);
429
 
    PJ_UNUSED_ARG(cap);
430
 
    PJ_UNUSED_ARG(pval);
431
 
    return PJMEDIA_EAUD_INVCAP;
432
 
}
433
 
 
434
 
/* API: Start stream. */
435
 
static pj_status_t stream_start(pjmedia_aud_stream *s)
436
 
{
437
 
    struct legacy_stream *strm = (struct legacy_stream*)s;
438
 
    return pjmedia_snd_stream_start(strm->snd_strm);
439
 
}
440
 
 
441
 
/* API: Stop stream. */
442
 
static pj_status_t stream_stop(pjmedia_aud_stream *s)
443
 
{
444
 
    struct legacy_stream *strm = (struct legacy_stream*)s;
445
 
    return pjmedia_snd_stream_stop(strm->snd_strm);
446
 
}
447
 
 
448
 
 
449
 
/* API: Destroy stream. */
450
 
static pj_status_t stream_destroy(pjmedia_aud_stream *s)
451
 
{
452
 
    struct legacy_stream *strm = (struct legacy_stream*)s;
453
 
    pj_status_t status;
454
 
 
455
 
    status = pjmedia_snd_stream_close(strm->snd_strm);
456
 
 
457
 
    if (status == PJ_SUCCESS) {
458
 
        pj_pool_t *pool = strm->pool;
459
 
 
460
 
        strm->pool = NULL;
461
 
        pj_pool_release(pool);
462
 
    }
463
 
 
464
 
    return status;
465
 
}
466
 
 
467
 
#endif  /* PJMEDIA_AUDIO_DEV_HAS_LEGACY_DEVICE */
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