diff options
Diffstat (limited to 'pjmedia/src/pjmedia-audiodev/audiodev.c')
| -rw-r--r-- | pjmedia/src/pjmedia-audiodev/audiodev.c | 703 |
1 files changed, 42 insertions, 661 deletions
diff --git a/pjmedia/src/pjmedia-audiodev/audiodev.c b/pjmedia/src/pjmedia-audiodev/audiodev.c index f747373e..e28bf318 100644 --- a/pjmedia/src/pjmedia-audiodev/audiodev.c +++ b/pjmedia/src/pjmedia-audiodev/audiodev.c @@ -19,51 +19,9 @@ */ #include <pjmedia-audiodev/audiodev_imp.h> #include <pj/assert.h> -#include <pj/errno.h> -#include <pj/log.h> -#include <pj/pool.h> -#include <pj/string.h> #define THIS_FILE "audiodev.c" -#define DEFINE_CAP(name, info) {name, info} - -/* Capability names */ -static struct cap_info -{ - const char *name; - const char *info; -} cap_infos[] = -{ - DEFINE_CAP("ext-fmt", "Extended/non-PCM format"), - DEFINE_CAP("latency-in", "Input latency/buffer size setting"), - DEFINE_CAP("latency-out", "Output latency/buffer size setting"), - DEFINE_CAP("vol-in", "Input volume setting"), - DEFINE_CAP("vol-out", "Output volume setting"), - DEFINE_CAP("meter-in", "Input meter"), - DEFINE_CAP("meter-out", "Output meter"), - DEFINE_CAP("route-in", "Input routing"), - DEFINE_CAP("route-out", "Output routing"), - DEFINE_CAP("aec", "Accoustic echo cancellation"), - DEFINE_CAP("aec-tail", "Tail length setting for AEC"), - DEFINE_CAP("vad", "Voice activity detection"), - DEFINE_CAP("cng", "Comfort noise generation"), - DEFINE_CAP("plg", "Packet loss concealment") -}; - - -/* - * The device index seen by application and driver is different. - * - * At application level, device index is index to global list of device. - * At driver level, device index is index to device list on that particular - * factory only. - */ -#define MAKE_DEV_ID(f_id, index) (((f_id & 0xFFFF) << 16) | (index & 0xFFFF)) -#define GET_INDEX(dev_id) ((dev_id) & 0xFFFF) -#define GET_FID(dev_id) ((dev_id) >> 16) -#define DEFAULT_DEV_ID 0 - /* extern functions to create factories */ #if PJMEDIA_AUDIO_DEV_HAS_PORTAUDIO @@ -114,285 +72,18 @@ pjmedia_aud_dev_factory* pjmedia_symb_mda_factory(pj_pool_factory *pf); pjmedia_aud_dev_factory* pjmedia_null_audio_factory(pj_pool_factory *pf); #endif -#define MAX_DRIVERS 16 -#define MAX_DEVS 64 - - -/* driver structure */ -struct driver -{ - /* Creation function */ - pjmedia_aud_dev_factory_create_func_ptr create; - /* Factory instance */ - pjmedia_aud_dev_factory *f; - char name[32]; /* Driver name */ - unsigned dev_cnt; /* Number of devices */ - unsigned start_idx; /* Start index in global list */ - int rec_dev_idx;/* Default capture device. */ - int play_dev_idx;/* Default playback device */ - int dev_idx; /* Default device. */ -}; - -/* The audio subsystem */ -static struct aud_subsys -{ - unsigned init_count; /* How many times init() is called */ - pj_pool_factory *pf; /* The pool factory. */ - - unsigned drv_cnt; /* Number of drivers. */ - struct driver drv[MAX_DRIVERS]; /* Array of drivers. */ - - unsigned dev_cnt; /* Total number of devices. */ - pj_uint32_t dev_list[MAX_DEVS];/* Array of device IDs. */ - -} aud_subsys; - -/* API: get capability name/info */ -PJ_DEF(const char*) pjmedia_aud_dev_cap_name(pjmedia_aud_dev_cap cap, - const char **p_desc) -{ - const char *desc; - unsigned i; - - if (p_desc==NULL) p_desc = &desc; - - for (i=0; i<PJ_ARRAY_SIZE(cap_infos); ++i) { - if ((1 << i)==cap) - break; - } - - if (i==PJ_ARRAY_SIZE(cap_infos)) { - *p_desc = "??"; - return "??"; - } - - *p_desc = cap_infos[i].info; - return cap_infos[i].name; -} - -static pj_status_t get_cap_pointer(const pjmedia_aud_param *param, - pjmedia_aud_dev_cap cap, - void **ptr, - unsigned *size) -{ -#define FIELD_INFO(name) *ptr = (void*)¶m->name; \ - *size = sizeof(param->name) - - switch (cap) { - case PJMEDIA_AUD_DEV_CAP_EXT_FORMAT: - FIELD_INFO(ext_fmt); - break; - case PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY: - FIELD_INFO(input_latency_ms); - break; - case PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY: - FIELD_INFO(output_latency_ms); - break; - case PJMEDIA_AUD_DEV_CAP_INPUT_VOLUME_SETTING: - FIELD_INFO(input_vol); - break; - case PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING: - FIELD_INFO(output_vol); - break; - case PJMEDIA_AUD_DEV_CAP_INPUT_ROUTE: - FIELD_INFO(input_route); - break; - case PJMEDIA_AUD_DEV_CAP_OUTPUT_ROUTE: - FIELD_INFO(output_route); - break; - case PJMEDIA_AUD_DEV_CAP_EC: - FIELD_INFO(ec_enabled); - break; - case PJMEDIA_AUD_DEV_CAP_EC_TAIL: - FIELD_INFO(ec_tail_ms); - break; - /* vad is no longer in "fmt" in 2.0. - case PJMEDIA_AUD_DEV_CAP_VAD: - FIELD_INFO(ext_fmt.vad); - break; - */ - case PJMEDIA_AUD_DEV_CAP_CNG: - FIELD_INFO(cng_enabled); - break; - case PJMEDIA_AUD_DEV_CAP_PLC: - FIELD_INFO(plc_enabled); - break; - default: - return PJMEDIA_EAUD_INVCAP; - } - -#undef FIELD_INFO - - return PJ_SUCCESS; -} - -/* API: set cap value to param */ -PJ_DEF(pj_status_t) pjmedia_aud_param_set_cap( pjmedia_aud_param *param, - pjmedia_aud_dev_cap cap, - const void *pval) -{ - void *cap_ptr; - unsigned cap_size; - pj_status_t status; - - status = get_cap_pointer(param, cap, &cap_ptr, &cap_size); - if (status != PJ_SUCCESS) - return status; - - pj_memcpy(cap_ptr, pval, cap_size); - param->flags |= cap; - - return PJ_SUCCESS; -} - -/* API: get cap value from param */ -PJ_DEF(pj_status_t) pjmedia_aud_param_get_cap( const pjmedia_aud_param *param, - pjmedia_aud_dev_cap cap, - void *pval) -{ - void *cap_ptr; - unsigned cap_size; - pj_status_t status; - - status = get_cap_pointer(param, cap, &cap_ptr, &cap_size); - if (status != PJ_SUCCESS) - return status; - - if ((param->flags & cap) == 0) { - pj_bzero(cap_ptr, cap_size); - return PJMEDIA_EAUD_INVCAP; - } - - pj_memcpy(pval, cap_ptr, cap_size); - return PJ_SUCCESS; -} - -/* Internal: init driver */ -static pj_status_t init_driver(unsigned drv_idx, pj_bool_t refresh) -{ - struct driver *drv = &aud_subsys.drv[drv_idx]; - pjmedia_aud_dev_factory *f; - unsigned i, dev_cnt; - pj_status_t status; - - if (!refresh && drv->create) { - /* Create the factory */ - f = (*drv->create)(aud_subsys.pf); - if (!f) - return PJ_EUNKNOWN; - - /* Call factory->init() */ - status = f->op->init(f); - if (status != PJ_SUCCESS) { - f->op->destroy(f); - return status; - } - } else { - f = drv->f; - } - - if (!f) - return PJ_EUNKNOWN; - - /* Get number of devices */ - dev_cnt = f->op->get_dev_count(f); - if (dev_cnt + aud_subsys.dev_cnt > MAX_DEVS) { - PJ_LOG(4,(THIS_FILE, "%d device(s) cannot be registered because" - " there are too many devices", - aud_subsys.dev_cnt + dev_cnt - MAX_DEVS)); - dev_cnt = MAX_DEVS - aud_subsys.dev_cnt; - } - - /* enabling this will cause pjsua-lib initialization to fail when there - * is no sound device installed in the system, even when pjsua has been - * run with --null-audio - * - if (dev_cnt == 0) { - f->op->destroy(f); - return PJMEDIA_EAUD_NODEV; - } - */ - - /* Fill in default devices */ - drv->play_dev_idx = drv->rec_dev_idx = - drv->dev_idx = PJMEDIA_AUD_INVALID_DEV; - for (i=0; i<dev_cnt; ++i) { - pjmedia_aud_dev_info info; - - status = f->op->get_dev_info(f, i, &info); - if (status != PJ_SUCCESS) { - f->op->destroy(f); - return status; - } - - if (drv->name[0]=='\0') { - /* Set driver name */ - pj_ansi_strncpy(drv->name, info.driver, sizeof(drv->name)); - drv->name[sizeof(drv->name)-1] = '\0'; - } - - if (drv->play_dev_idx < 0 && info.output_count) { - /* Set default playback device */ - drv->play_dev_idx = i; - } - if (drv->rec_dev_idx < 0 && info.input_count) { - /* Set default capture device */ - drv->rec_dev_idx = i; - } - if (drv->dev_idx < 0 && info.input_count && - info.output_count) - { - /* Set default capture and playback device */ - drv->dev_idx = i; - } - - if (drv->play_dev_idx >= 0 && drv->rec_dev_idx >= 0 && - drv->dev_idx >= 0) - { - /* Done. */ - break; - } - } - - /* Register the factory */ - drv->f = f; - drv->f->sys.drv_idx = drv_idx; - drv->start_idx = aud_subsys.dev_cnt; - drv->dev_cnt = dev_cnt; - - /* Register devices to global list */ - for (i=0; i<dev_cnt; ++i) { - aud_subsys.dev_list[aud_subsys.dev_cnt++] = MAKE_DEV_ID(drv_idx, i); - } - - return PJ_SUCCESS; -} - -/* Internal: deinit driver */ -static void deinit_driver(unsigned drv_idx) -{ - struct driver *drv = &aud_subsys.drv[drv_idx]; - - if (drv->f) { - drv->f->op->destroy(drv->f); - drv->f = NULL; - } - - pj_bzero(drv, sizeof(*drv)); - drv->play_dev_idx = drv->rec_dev_idx = - drv->dev_idx = PJMEDIA_AUD_INVALID_DEV; -} /* API: Initialize the audio subsystem. */ PJ_DEF(pj_status_t) pjmedia_aud_subsys_init(pj_pool_factory *pf) { unsigned i; pj_status_t status; + pjmedia_aud_subsys *aud_subsys = pjmedia_get_aud_subsys(); /* Allow init() to be called multiple times as long as there is matching * number of shutdown(). */ - if (aud_subsys.init_count++ != 0) { + if (aud_subsys->init_count++ != 0) { return PJ_SUCCESS; } @@ -403,58 +94,58 @@ PJ_DEF(pj_status_t) pjmedia_aud_subsys_init(pj_pool_factory *pf) pj_assert(status == PJ_SUCCESS); /* Init */ - aud_subsys.pf = pf; - aud_subsys.drv_cnt = 0; - aud_subsys.dev_cnt = 0; + aud_subsys->pf = pf; + aud_subsys->drv_cnt = 0; + aud_subsys->dev_cnt = 0; /* Register creation functions */ #if PJMEDIA_AUDIO_DEV_HAS_OPENSL - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_opensl_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_opensl_factory; #endif #if PJMEDIA_AUDIO_DEV_HAS_ANDROID_JNI - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_android_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_android_factory; #endif #if PJMEDIA_AUDIO_DEV_HAS_BB10 - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_bb10_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_bb10_factory; #endif #if PJMEDIA_AUDIO_DEV_HAS_ALSA - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_alsa_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_alsa_factory; #endif #if PJMEDIA_AUDIO_DEV_HAS_COREAUDIO - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_coreaudio_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_coreaudio_factory; #endif #if PJMEDIA_AUDIO_DEV_HAS_PORTAUDIO - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_pa_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_pa_factory; #endif #if PJMEDIA_AUDIO_DEV_HAS_WMME - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_wmme_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_wmme_factory; #endif #if PJMEDIA_AUDIO_DEV_HAS_BDIMAD - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_bdimad_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_bdimad_factory; #endif #if PJMEDIA_AUDIO_DEV_HAS_SYMB_VAS - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_symb_vas_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_symb_vas_factory; #endif #if PJMEDIA_AUDIO_DEV_HAS_SYMB_APS - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_aps_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_aps_factory; #endif #if PJMEDIA_AUDIO_DEV_HAS_SYMB_MDA - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_symb_mda_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_symb_mda_factory; #endif #if PJMEDIA_AUDIO_DEV_HAS_NULL_AUDIO - aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_null_audio_factory; + aud_subsys->drv[aud_subsys->drv_cnt++].create = &pjmedia_null_audio_factory; #endif /* Initialize each factory and build the device ID list */ - for (i=0; i<aud_subsys.drv_cnt; ++i) { - status = init_driver(i, PJ_FALSE); + for (i=0; i<aud_subsys->drv_cnt; ++i) { + status = pjmedia_aud_driver_init(i, PJ_FALSE); if (status != PJ_SUCCESS) { - deinit_driver(i); + pjmedia_aud_driver_deinit(i); continue; } } - return aud_subsys.dev_cnt ? PJ_SUCCESS : status; + return aud_subsys->dev_cnt ? PJ_SUCCESS : status; } /* API: register an audio device factory to the audio subsystem. */ @@ -462,16 +153,17 @@ PJ_DEF(pj_status_t) pjmedia_aud_register_factory(pjmedia_aud_dev_factory_create_func_ptr adf) { pj_status_t status; + pjmedia_aud_subsys *aud_subsys = pjmedia_get_aud_subsys(); - if (aud_subsys.init_count == 0) + if (aud_subsys->init_count == 0) return PJMEDIA_EAUD_INIT; - aud_subsys.drv[aud_subsys.drv_cnt].create = adf; - status = init_driver(aud_subsys.drv_cnt, PJ_FALSE); + aud_subsys->drv[aud_subsys->drv_cnt].create = adf; + status = pjmedia_aud_driver_init(aud_subsys->drv_cnt, PJ_FALSE); if (status == PJ_SUCCESS) { - aud_subsys.drv_cnt++; + aud_subsys->drv_cnt++; } else { - deinit_driver(aud_subsys.drv_cnt); + pjmedia_aud_driver_deinit(aud_subsys->drv_cnt); } return status; @@ -482,20 +174,21 @@ PJ_DEF(pj_status_t) pjmedia_aud_unregister_factory(pjmedia_aud_dev_factory_create_func_ptr adf) { unsigned i, j; + pjmedia_aud_subsys *aud_subsys = pjmedia_get_aud_subsys(); - if (aud_subsys.init_count == 0) + if (aud_subsys->init_count == 0) return PJMEDIA_EAUD_INIT; - for (i=0; i<aud_subsys.drv_cnt; ++i) { - struct driver *drv = &aud_subsys.drv[i]; + for (i=0; i<aud_subsys->drv_cnt; ++i) { + pjmedia_aud_driver *drv = &aud_subsys->drv[i]; if (drv->create == adf) { for (j = drv->start_idx; j < drv->start_idx + drv->dev_cnt; j++) { - aud_subsys.dev_list[j] = (pj_uint32_t)PJMEDIA_AUD_INVALID_DEV; + aud_subsys->dev_list[j] = (pj_uint32_t)PJMEDIA_AUD_INVALID_DEV; } - deinit_driver(i); + pjmedia_aud_driver_deinit(i); return PJ_SUCCESS; } } @@ -506,342 +199,30 @@ pjmedia_aud_unregister_factory(pjmedia_aud_dev_factory_create_func_ptr adf) /* API: get the pool factory registered to the audio subsystem. */ PJ_DEF(pj_pool_factory*) pjmedia_aud_subsys_get_pool_factory(void) { - return aud_subsys.pf; + pjmedia_aud_subsys *aud_subsys = pjmedia_get_aud_subsys(); + return aud_subsys->pf; } /* API: Shutdown the audio subsystem. */ PJ_DEF(pj_status_t) pjmedia_aud_subsys_shutdown(void) { unsigned i; + pjmedia_aud_subsys *aud_subsys = pjmedia_get_aud_subsys(); /* Allow shutdown() to be called multiple times as long as there is matching * number of init(). */ - if (aud_subsys.init_count == 0) { - return PJ_SUCCESS; - } - --aud_subsys.init_count; - - if (aud_subsys.init_count == 0) { - for (i=0; i<aud_subsys.drv_cnt; ++i) { - deinit_driver(i); - } - - aud_subsys.pf = NULL; - } - return PJ_SUCCESS; -} - -/* API: Refresh the list of sound devices installed in the system. */ -PJ_DEF(pj_status_t) pjmedia_aud_dev_refresh(void) -{ - unsigned i; - - aud_subsys.dev_cnt = 0; - for (i=0; i<aud_subsys.drv_cnt; ++i) { - struct driver *drv = &aud_subsys.drv[i]; - - if (drv->f && drv->f->op->refresh) { - pj_status_t status = drv->f->op->refresh(drv->f); - if (status != PJ_SUCCESS) { - PJ_PERROR(4, (THIS_FILE, status, "Unable to refresh device " - "list for %s", drv->name)); - } - } - init_driver(i, PJ_TRUE); - } - return PJ_SUCCESS; -} - -/* API: Get the number of sound devices installed in the system. */ -PJ_DEF(unsigned) pjmedia_aud_dev_count(void) -{ - return aud_subsys.dev_cnt; -} - -/* Internal: convert local index to global device index */ -static pj_status_t make_global_index(unsigned drv_idx, - pjmedia_aud_dev_index *id) -{ - if (*id < 0) { + if (aud_subsys->init_count == 0) { return PJ_SUCCESS; } + --aud_subsys->init_count; - /* Check that factory still exists */ - PJ_ASSERT_RETURN(aud_subsys.drv[drv_idx].f, PJ_EBUG); - - /* Check that device index is valid */ - PJ_ASSERT_RETURN(*id>=0 && *id<(int)aud_subsys.drv[drv_idx].dev_cnt, - PJ_EBUG); - - *id += aud_subsys.drv[drv_idx].start_idx; - return PJ_SUCCESS; -} - -/* Internal: lookup device id */ -static pj_status_t lookup_dev(pjmedia_aud_dev_index id, - pjmedia_aud_dev_factory **p_f, - unsigned *p_local_index) -{ - int f_id, index; - - if (id < 0) { - unsigned i; - - if (id == PJMEDIA_AUD_INVALID_DEV) - return PJMEDIA_EAUD_INVDEV; - - for (i=0; i<aud_subsys.drv_cnt; ++i) { - struct driver *drv = &aud_subsys.drv[i]; - if (drv->dev_idx >= 0) { - id = drv->dev_idx; - make_global_index(i, &id); - break; - } else if (id==PJMEDIA_AUD_DEFAULT_CAPTURE_DEV && - drv->rec_dev_idx >= 0) - { - id = drv->rec_dev_idx; - make_global_index(i, &id); - break; - } else if (id==PJMEDIA_AUD_DEFAULT_PLAYBACK_DEV && - drv->play_dev_idx >= 0) - { - id = drv->play_dev_idx; - make_global_index(i, &id); - break; - } - } - - if (id < 0) { - return PJMEDIA_EAUD_NODEFDEV; + if (aud_subsys->init_count == 0) { + for (i=0; i<aud_subsys->drv_cnt; ++i) { + pjmedia_aud_driver_deinit(i); } - } - - f_id = GET_FID(aud_subsys.dev_list[id]); - index = GET_INDEX(aud_subsys.dev_list[id]); - - if (f_id < 0 || f_id >= (int)aud_subsys.drv_cnt) - return PJMEDIA_EAUD_INVDEV; - - if (index < 0 || index >= (int)aud_subsys.drv[f_id].dev_cnt) - return PJMEDIA_EAUD_INVDEV; - - *p_f = aud_subsys.drv[f_id].f; - *p_local_index = (unsigned)index; - - return PJ_SUCCESS; - -} - -/* API: Get device information. */ -PJ_DEF(pj_status_t) pjmedia_aud_dev_get_info(pjmedia_aud_dev_index id, - pjmedia_aud_dev_info *info) -{ - pjmedia_aud_dev_factory *f; - unsigned index; - pj_status_t status; - - PJ_ASSERT_RETURN(info && id!=PJMEDIA_AUD_INVALID_DEV, PJ_EINVAL); - PJ_ASSERT_RETURN(aud_subsys.pf, PJMEDIA_EAUD_INIT); - - status = lookup_dev(id, &f, &index); - if (status != PJ_SUCCESS) - return status; - - return f->op->get_dev_info(f, index, info); -} - -/* API: find device */ -PJ_DEF(pj_status_t) pjmedia_aud_dev_lookup( const char *drv_name, - const char *dev_name, - pjmedia_aud_dev_index *id) -{ - pjmedia_aud_dev_factory *f = NULL; - unsigned drv_idx, dev_idx; - - PJ_ASSERT_RETURN(drv_name && dev_name && id, PJ_EINVAL); - PJ_ASSERT_RETURN(aud_subsys.pf, PJMEDIA_EAUD_INIT); - - for (drv_idx=0; drv_idx<aud_subsys.drv_cnt; ++drv_idx) { - if (!pj_ansi_stricmp(drv_name, aud_subsys.drv[drv_idx].name)) { - f = aud_subsys.drv[drv_idx].f; - break; - } - } - - if (!f) - return PJ_ENOTFOUND; - - for (dev_idx=0; dev_idx<aud_subsys.drv[drv_idx].dev_cnt; ++dev_idx) { - pjmedia_aud_dev_info info; - pj_status_t status; - - status = f->op->get_dev_info(f, dev_idx, &info); - if (status != PJ_SUCCESS) - return status; - - if (!pj_ansi_stricmp(dev_name, info.name)) - break; - } - - if (dev_idx==aud_subsys.drv[drv_idx].dev_cnt) - return PJ_ENOTFOUND; - - *id = dev_idx; - make_global_index(drv_idx, id); - - return PJ_SUCCESS; -} - -/* API: Initialize the audio device parameters with default values for the - * specified device. - */ -PJ_DEF(pj_status_t) pjmedia_aud_dev_default_param(pjmedia_aud_dev_index id, - pjmedia_aud_param *param) -{ - pjmedia_aud_dev_factory *f; - unsigned index; - pj_status_t status; - - PJ_ASSERT_RETURN(param && id!=PJMEDIA_AUD_INVALID_DEV, PJ_EINVAL); - PJ_ASSERT_RETURN(aud_subsys.pf, PJMEDIA_EAUD_INIT); - - status = lookup_dev(id, &f, &index); - if (status != PJ_SUCCESS) - return status; - - status = f->op->default_param(f, index, param); - if (status != PJ_SUCCESS) - return status; - - /* Normalize device IDs */ - make_global_index(f->sys.drv_idx, ¶m->rec_id); - make_global_index(f->sys.drv_idx, ¶m->play_id); - - return PJ_SUCCESS; -} - -/* API: Open audio stream object using the specified parameters. */ -PJ_DEF(pj_status_t) pjmedia_aud_stream_create(const pjmedia_aud_param *prm, - pjmedia_aud_rec_cb rec_cb, - pjmedia_aud_play_cb play_cb, - void *user_data, - pjmedia_aud_stream **p_aud_strm) -{ - pjmedia_aud_dev_factory *rec_f=NULL, *play_f=NULL, *f=NULL; - pjmedia_aud_param param; - pj_status_t status; - - PJ_ASSERT_RETURN(prm && prm->dir && p_aud_strm, PJ_EINVAL); - PJ_ASSERT_RETURN(aud_subsys.pf, PJMEDIA_EAUD_INIT); - PJ_ASSERT_RETURN(prm->dir==PJMEDIA_DIR_CAPTURE || - prm->dir==PJMEDIA_DIR_PLAYBACK || - prm->dir==PJMEDIA_DIR_CAPTURE_PLAYBACK, - PJ_EINVAL); - - /* Must make copy of param because we're changing device ID */ - pj_memcpy(¶m, prm, sizeof(param)); - /* Normalize rec_id */ - if (param.dir & PJMEDIA_DIR_CAPTURE) { - unsigned index; - - if (param.rec_id < 0) - param.rec_id = PJMEDIA_AUD_DEFAULT_CAPTURE_DEV; - - status = lookup_dev(param.rec_id, &rec_f, &index); - if (status != PJ_SUCCESS) - return status; - - param.rec_id = index; - f = rec_f; + aud_subsys->pf = NULL; } - - /* Normalize play_id */ - if (param.dir & PJMEDIA_DIR_PLAYBACK) { - unsigned index; - - if (param.play_id < 0) - param.play_id = PJMEDIA_AUD_DEFAULT_PLAYBACK_DEV; - - status = lookup_dev(param.play_id, &play_f, &index); - if (status != PJ_SUCCESS) - return status; - - param.play_id = index; - f = play_f; - } - - PJ_ASSERT_RETURN(f != NULL, PJ_EBUG); - - /* For now, rec_id and play_id must belong to the same factory */ - PJ_ASSERT_RETURN((param.dir != PJMEDIA_DIR_CAPTURE_PLAYBACK) || - (rec_f == play_f), - PJMEDIA_EAUD_INVDEV); - - /* Create the stream */ - status = f->op->create_stream(f, ¶m, rec_cb, play_cb, - user_data, p_aud_strm); - if (status != PJ_SUCCESS) - return status; - - /* Assign factory id to the stream */ - (*p_aud_strm)->sys.drv_idx = f->sys.drv_idx; return PJ_SUCCESS; } - -/* API: Get the running parameters for the specified audio stream. */ -PJ_DEF(pj_status_t) pjmedia_aud_stream_get_param(pjmedia_aud_stream *strm, - pjmedia_aud_param *param) -{ - pj_status_t status; - - PJ_ASSERT_RETURN(strm && param, PJ_EINVAL); - PJ_ASSERT_RETURN(aud_subsys.pf, PJMEDIA_EAUD_INIT); - - status = strm->op->get_param(strm, param); - if (status != PJ_SUCCESS) - return status; - - /* Normalize device id's */ - make_global_index(strm->sys.drv_idx, ¶m->rec_id); - make_global_index(strm->sys.drv_idx, ¶m->play_id); - - return PJ_SUCCESS; -} - -/* API: Get the value of a specific capability of the audio stream. */ -PJ_DEF(pj_status_t) pjmedia_aud_stream_get_cap(pjmedia_aud_stream *strm, - pjmedia_aud_dev_cap cap, - void *value) -{ - return strm->op->get_cap(strm, cap, value); -} - -/* API: Set the value of a specific capability of the audio stream. */ -PJ_DEF(pj_status_t) pjmedia_aud_stream_set_cap(pjmedia_aud_stream *strm, - pjmedia_aud_dev_cap cap, - const void *value) -{ - return strm->op->set_cap(strm, cap, value); -} - -/* API: Start the stream. */ -PJ_DEF(pj_status_t) pjmedia_aud_stream_start(pjmedia_aud_stream *strm) -{ - return strm->op->start(strm); -} - -/* API: Stop the stream. */ -PJ_DEF(pj_status_t) pjmedia_aud_stream_stop(pjmedia_aud_stream *strm) -{ - return strm->op->stop(strm); -} - -/* API: Destroy the stream. */ -PJ_DEF(pj_status_t) pjmedia_aud_stream_destroy(pjmedia_aud_stream *strm) -{ - return strm->op->destroy(strm); -} - - |