diff options
Diffstat (limited to 'pjmedia/src/pjmedia-videodev/videodev.c')
| -rw-r--r-- | pjmedia/src/pjmedia-videodev/videodev.c | 757 |
1 files changed, 40 insertions, 717 deletions
diff --git a/pjmedia/src/pjmedia-videodev/videodev.c b/pjmedia/src/pjmedia-videodev/videodev.c index 8558588d..1d560975 100644 --- a/pjmedia/src/pjmedia-videodev/videodev.c +++ b/pjmedia/src/pjmedia-videodev/videodev.c @@ -18,10 +18,6 @@ */ #include <pjmedia-videodev/videodev_imp.h> #include <pj/assert.h> -#include <pj/errno.h> -#include <pj/log.h> -#include <pj/pool.h> -#include <pj/string.h> #if defined(PJMEDIA_HAS_VIDEO) && (PJMEDIA_HAS_VIDEO != 0) @@ -29,40 +25,6 @@ #define THIS_FILE "videodev.c" -#define DEFINE_CAP(name, info) {name, info} - -/* Capability names */ -static struct cap_info -{ - const char *name; - const char *info; -} cap_infos[] = -{ - DEFINE_CAP("format", "Video format"), - DEFINE_CAP("scale", "Input dimension"), - DEFINE_CAP("window", "Window handle"), - DEFINE_CAP("resize", "Renderer resize"), - DEFINE_CAP("position", "Renderer position"), - DEFINE_CAP("hide", "Renderer hide"), - DEFINE_CAP("preview", "Input preview"), - DEFINE_CAP("orientation", "Video orientation"), - DEFINE_CAP("switch", "Switch device"), - DEFINE_CAP("wndflags", "Window flags") -}; - - -/* - * 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_VIDEO_DEV_HAS_NULL_VIDEO @@ -109,262 +71,17 @@ pjmedia_vid_dev_factory* pjmedia_and_factory(pj_pool_factory *pf); #define MAX_DEVS PJMEDIA_VID_DEV_MAX_DEVS -/* driver structure */ -struct driver -{ - /* Creation function */ - pjmedia_vid_dev_factory_create_func_ptr create; - /* Factory instance */ - pjmedia_vid_dev_factory *f; - char name[32]; /* Driver name */ - unsigned dev_cnt; /* Number of devices */ - unsigned start_idx; /* Start index in global list */ - int cap_dev_idx; /* Default capture device. */ - int rend_dev_idx; /* Default render device */ -}; - -/* The video device subsystem */ -static struct vid_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. */ - -} vid_subsys; - -/* API: get capability name/info */ -PJ_DEF(const char*) pjmedia_vid_dev_cap_name(pjmedia_vid_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_vid_dev_param *param, - pjmedia_vid_dev_cap cap, - void **ptr, - unsigned *size) -{ -#define FIELD_INFO(name) *ptr = (void*)¶m->name; \ - *size = sizeof(param->name) - - switch (cap) { - case PJMEDIA_VID_DEV_CAP_FORMAT: - FIELD_INFO(fmt); - break; - case PJMEDIA_VID_DEV_CAP_INPUT_SCALE: - FIELD_INFO(disp_size); - break; - case PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW: - FIELD_INFO(window); - break; - case PJMEDIA_VID_DEV_CAP_OUTPUT_RESIZE: - FIELD_INFO(disp_size); - break; - case PJMEDIA_VID_DEV_CAP_OUTPUT_POSITION: - FIELD_INFO(window_pos); - break; - case PJMEDIA_VID_DEV_CAP_OUTPUT_HIDE: - FIELD_INFO(window_hide); - break; - case PJMEDIA_VID_DEV_CAP_INPUT_PREVIEW: - FIELD_INFO(native_preview); - break; - case PJMEDIA_VID_DEV_CAP_ORIENTATION: - FIELD_INFO(orient); - break; - /* The PJMEDIA_VID_DEV_CAP_SWITCH does not have an entry in the - * param (it doesn't make sense to open a stream and tell it - * to switch immediately). - */ - case PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW_FLAGS: - FIELD_INFO(window_flags); - break; - default: - return PJMEDIA_EVID_INVCAP; - } - -#undef FIELD_INFO - - return PJ_SUCCESS; -} - -/* API: set cap value to param */ -PJ_DEF(pj_status_t) -pjmedia_vid_dev_param_set_cap( pjmedia_vid_dev_param *param, - pjmedia_vid_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_vid_dev_param_get_cap( const pjmedia_vid_dev_param *param, - pjmedia_vid_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_EVID_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 = &vid_subsys.drv[drv_idx]; - pjmedia_vid_dev_factory *f; - unsigned i, dev_cnt; - pj_status_t status; - - if (!refresh) { - /* Create the factory */ - f = (*drv->create)(vid_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; - } - - /* Get number of devices */ - dev_cnt = f->op->get_dev_count(f); - if (dev_cnt + vid_subsys.dev_cnt > MAX_DEVS) { - PJ_LOG(4,(THIS_FILE, "%d device(s) cannot be registered because" - " there are too many devices", - vid_subsys.dev_cnt + dev_cnt - MAX_DEVS)); - dev_cnt = MAX_DEVS - vid_subsys.dev_cnt; - } - - /* enabling this will cause pjsua-lib initialization to fail when there - * is no video device installed in the system, even when pjsua has been - * run with --null-video - * - if (dev_cnt == 0) { - f->op->destroy(f); - return PJMEDIA_EVID_NODEV; - } - */ - - /* Fill in default devices */ - drv->rend_dev_idx = drv->cap_dev_idx = -1; - for (i=0; i<dev_cnt; ++i) { - pjmedia_vid_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->rend_dev_idx < 0 && (info.dir & PJMEDIA_DIR_RENDER)) { - /* Set default render device */ - drv->rend_dev_idx = i; - } - if (drv->cap_dev_idx < 0 && (info.dir & PJMEDIA_DIR_CAPTURE)) { - /* Set default capture device */ - drv->cap_dev_idx = i; - } - - if (drv->rend_dev_idx >= 0 && drv->cap_dev_idx >= 0) { - /* Done. */ - break; - } - } - - /* Register the factory */ - drv->f = f; - drv->f->sys.drv_idx = drv_idx; - drv->start_idx = vid_subsys.dev_cnt; - drv->dev_cnt = dev_cnt; - - /* Register devices to global list */ - for (i=0; i<dev_cnt; ++i) { - vid_subsys.dev_list[vid_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 = &vid_subsys.drv[drv_idx]; - - if (drv->f) { - drv->f->op->destroy(drv->f); - drv->f = NULL; - } - - drv->dev_cnt = 0; - drv->rend_dev_idx = drv->cap_dev_idx = -1; -} - /* API: Initialize the video device subsystem. */ PJ_DEF(pj_status_t) pjmedia_vid_dev_subsys_init(pj_pool_factory *pf) { unsigned i; pj_status_t status = PJ_SUCCESS; + pjmedia_vid_subsys *vid_subsys = pjmedia_get_vid_subsys(); /* Allow init() to be called multiple times as long as there is matching * number of shutdown(). */ - if (vid_subsys.init_count++ != 0) { + if (vid_subsys->init_count++ != 0) { return PJ_SUCCESS; } @@ -374,52 +91,52 @@ PJ_DEF(pj_status_t) pjmedia_vid_dev_subsys_init(pj_pool_factory *pf) &pjmedia_videodev_strerror); /* Init */ - vid_subsys.pf = pf; - vid_subsys.drv_cnt = 0; - vid_subsys.dev_cnt = 0; + vid_subsys->pf = pf; + vid_subsys->drv_cnt = 0; + vid_subsys->dev_cnt = 0; /* Register creation functions */ #if PJMEDIA_VIDEO_DEV_HAS_V4L2 - vid_subsys.drv[vid_subsys.drv_cnt++].create = &pjmedia_v4l2_factory; + vid_subsys->drv[vid_subsys->drv_cnt++].create = &pjmedia_v4l2_factory; #endif #if PJMEDIA_VIDEO_DEV_HAS_QT - vid_subsys.drv[vid_subsys.drv_cnt++].create = &pjmedia_qt_factory; + vid_subsys->drv[vid_subsys->drv_cnt++].create = &pjmedia_qt_factory; #endif #if PJMEDIA_VIDEO_DEV_HAS_OPENGL - vid_subsys.drv[vid_subsys.drv_cnt++].create = &pjmedia_opengl_factory; + vid_subsys->drv[vid_subsys->drv_cnt++].create = &pjmedia_opengl_factory; #endif #if PJMEDIA_VIDEO_DEV_HAS_IOS - vid_subsys.drv[vid_subsys.drv_cnt++].create = &pjmedia_ios_factory; + vid_subsys->drv[vid_subsys->drv_cnt++].create = &pjmedia_ios_factory; #endif #if PJMEDIA_VIDEO_DEV_HAS_DSHOW - vid_subsys.drv[vid_subsys.drv_cnt++].create = &pjmedia_dshow_factory; + vid_subsys->drv[vid_subsys->drv_cnt++].create = &pjmedia_dshow_factory; #endif #if PJMEDIA_VIDEO_DEV_HAS_FFMPEG - vid_subsys.drv[vid_subsys.drv_cnt++].create = &pjmedia_ffmpeg_factory; + vid_subsys->drv[vid_subsys->drv_cnt++].create = &pjmedia_ffmpeg_factory; #endif #if PJMEDIA_VIDEO_DEV_HAS_SDL - vid_subsys.drv[vid_subsys.drv_cnt++].create = &pjmedia_sdl_factory; + vid_subsys->drv[vid_subsys->drv_cnt++].create = &pjmedia_sdl_factory; #endif #if PJMEDIA_VIDEO_DEV_HAS_ANDROID - vid_subsys.drv[vid_subsys.drv_cnt++].create = &pjmedia_and_factory; + vid_subsys->drv[vid_subsys->drv_cnt++].create = &pjmedia_and_factory; #endif #if PJMEDIA_VIDEO_DEV_HAS_CBAR_SRC /* Better put colorbar at the last, so the default capturer will be * a real capturer, if any. */ - vid_subsys.drv[vid_subsys.drv_cnt++].create = &pjmedia_cbar_factory; + vid_subsys->drv[vid_subsys->drv_cnt++].create = &pjmedia_cbar_factory; #endif /* Initialize each factory and build the device ID list */ - for (i=0; i<vid_subsys.drv_cnt; ++i) { - status = init_driver(i, PJ_FALSE); + for (i=0; i<vid_subsys->drv_cnt; ++i) { + status = pjmedia_vid_driver_init(i, PJ_FALSE); if (status != PJ_SUCCESS) { - deinit_driver(i); + pjmedia_vid_driver_deinit(i); continue; } } - return vid_subsys.dev_cnt ? PJ_SUCCESS : status; + return vid_subsys->dev_cnt ? PJ_SUCCESS : status; } /* API: register a video device factory to the video device subsystem. */ @@ -429,12 +146,13 @@ pjmedia_vid_register_factory(pjmedia_vid_dev_factory_create_func_ptr adf, { pj_bool_t refresh = PJ_FALSE; pj_status_t status; + pjmedia_vid_subsys *vid_subsys = pjmedia_get_vid_subsys(); - if (vid_subsys.init_count == 0) + if (vid_subsys->init_count == 0) return PJMEDIA_EVID_INIT; - vid_subsys.drv[vid_subsys.drv_cnt].create = adf; - vid_subsys.drv[vid_subsys.drv_cnt].f = factory; + vid_subsys->drv[vid_subsys->drv_cnt].create = adf; + vid_subsys->drv[vid_subsys->drv_cnt].f = factory; if (factory) { /* Call factory->init() */ @@ -446,11 +164,11 @@ pjmedia_vid_register_factory(pjmedia_vid_dev_factory_create_func_ptr adf, refresh = PJ_TRUE; } - status = init_driver(vid_subsys.drv_cnt, refresh); + status = pjmedia_vid_driver_init(vid_subsys->drv_cnt, refresh); if (status == PJ_SUCCESS) { - vid_subsys.drv_cnt++; + vid_subsys->drv_cnt++; } else { - deinit_driver(vid_subsys.drv_cnt); + pjmedia_vid_driver_deinit(vid_subsys->drv_cnt); } return status; @@ -462,20 +180,21 @@ pjmedia_vid_unregister_factory(pjmedia_vid_dev_factory_create_func_ptr adf, pjmedia_vid_dev_factory *factory) { unsigned i, j; + pjmedia_vid_subsys *vid_subsys = pjmedia_get_vid_subsys(); - if (vid_subsys.init_count == 0) + if (vid_subsys->init_count == 0) return PJMEDIA_EVID_INIT; - for (i=0; i<vid_subsys.drv_cnt; ++i) { - struct driver *drv = &vid_subsys.drv[i]; + for (i=0; i<vid_subsys->drv_cnt; ++i) { + pjmedia_vid_driver *drv = &vid_subsys->drv[i]; if ((factory && drv->f==factory) || (adf && drv->create == adf)) { for (j = drv->start_idx; j < drv->start_idx + drv->dev_cnt; j++) { - vid_subsys.dev_list[j] = (pj_uint32_t)PJMEDIA_VID_INVALID_DEV; + vid_subsys->dev_list[j] = (pj_uint32_t)PJMEDIA_VID_INVALID_DEV; } - deinit_driver(i); + pjmedia_vid_driver_deinit(i); pj_bzero(drv, sizeof(*drv)); return PJ_SUCCESS; } @@ -487,429 +206,33 @@ pjmedia_vid_unregister_factory(pjmedia_vid_dev_factory_create_func_ptr adf, /* API: get the pool factory registered to the video device subsystem. */ PJ_DEF(pj_pool_factory*) pjmedia_vid_dev_subsys_get_pool_factory(void) { - return vid_subsys.pf; + pjmedia_vid_subsys *vid_subsys = pjmedia_get_vid_subsys(); + return vid_subsys->pf; } /* API: Shutdown the video device subsystem. */ PJ_DEF(pj_status_t) pjmedia_vid_dev_subsys_shutdown(void) { unsigned i; + pjmedia_vid_subsys *vid_subsys = pjmedia_get_vid_subsys(); /* Allow shutdown() to be called multiple times as long as there is * matching number of init(). */ - if (vid_subsys.init_count == 0) { + if (vid_subsys->init_count == 0) { return PJ_SUCCESS; } - --vid_subsys.init_count; + --vid_subsys->init_count; - if (vid_subsys.init_count == 0) { - for (i=0; i<vid_subsys.drv_cnt; ++i) { - deinit_driver(i); + if (vid_subsys->init_count == 0) { + for (i=0; i<vid_subsys->drv_cnt; ++i) { + pjmedia_vid_driver_deinit(i); } - vid_subsys.pf = NULL; - } - return PJ_SUCCESS; -} - -/* API: Refresh the list of video devices installed in the system. */ -PJ_DEF(pj_status_t) pjmedia_vid_dev_refresh(void) -{ - unsigned i; - - vid_subsys.dev_cnt = 0; - for (i=0; i<vid_subsys.drv_cnt; ++i) { - struct driver *drv = &vid_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 video devices installed in the system. */ -PJ_DEF(unsigned) pjmedia_vid_dev_count(void) -{ - return vid_subsys.dev_cnt; -} - -/* Internal: convert local index to global device index */ -static pj_status_t make_global_index(unsigned drv_idx, - pjmedia_vid_dev_index *id) -{ - if (*id < 0) { - return PJ_SUCCESS; - } - - /* Check that factory still exists */ - PJ_ASSERT_RETURN(vid_subsys.drv[drv_idx].f, PJ_EBUG); - - /* Check that device index is valid */ - PJ_ASSERT_RETURN(*id>=0 && *id<(int)vid_subsys.drv[drv_idx].dev_cnt, - PJ_EBUG); - - *id += vid_subsys.drv[drv_idx].start_idx; - return PJ_SUCCESS; -} - -/* Internal: lookup device id */ -static pj_status_t lookup_dev(pjmedia_vid_dev_index id, - pjmedia_vid_dev_factory **p_f, - unsigned *p_local_index) -{ - int f_id, index; - - if (id < 0) { - unsigned i; - - if (id <= PJMEDIA_VID_INVALID_DEV) - return PJMEDIA_EVID_INVDEV; - - for (i=0; i<vid_subsys.drv_cnt; ++i) { - struct driver *drv = &vid_subsys.drv[i]; - if (id==PJMEDIA_VID_DEFAULT_CAPTURE_DEV && - drv->cap_dev_idx >= 0) - { - id = drv->cap_dev_idx; - make_global_index(i, &id); - break; - } else if (id==PJMEDIA_VID_DEFAULT_RENDER_DEV && - drv->rend_dev_idx >= 0) - { - id = drv->rend_dev_idx; - make_global_index(i, &id); - break; - } - } - - if (id < 0) { - return PJMEDIA_EVID_NODEFDEV; - } - } - - f_id = GET_FID(vid_subsys.dev_list[id]); - index = GET_INDEX(vid_subsys.dev_list[id]); - - if (f_id < 0 || f_id >= (int)vid_subsys.drv_cnt) - return PJMEDIA_EVID_INVDEV; - - if (index < 0 || index >= (int)vid_subsys.drv[f_id].dev_cnt) - return PJMEDIA_EVID_INVDEV; - - *p_f = vid_subsys.drv[f_id].f; - *p_local_index = (unsigned)index; - - return PJ_SUCCESS; - -} - -/* API: lookup device id */ -PJ_DEF(pj_status_t) -pjmedia_vid_dev_get_local_index(pjmedia_vid_dev_index id, - pjmedia_vid_dev_factory **p_f, - unsigned *p_local_index) -{ - return lookup_dev(id, p_f, p_local_index); -} - -/* API: from factory and local index, get global index */ -PJ_DEF(pj_status_t) -pjmedia_vid_dev_get_global_index(const pjmedia_vid_dev_factory *f, - unsigned local_idx, - pjmedia_vid_dev_index *pid) -{ - PJ_ASSERT_RETURN(f->sys.drv_idx >= 0 && f->sys.drv_idx < MAX_DRIVERS, - PJ_EINVALIDOP); - *pid = local_idx; - return make_global_index(f->sys.drv_idx, pid); -} - -/* API: Get device information. */ -PJ_DEF(pj_status_t) pjmedia_vid_dev_get_info(pjmedia_vid_dev_index id, - pjmedia_vid_dev_info *info) -{ - pjmedia_vid_dev_factory *f; - unsigned index; - pj_status_t status; - - PJ_ASSERT_RETURN(info, PJ_EINVAL); - PJ_ASSERT_RETURN(vid_subsys.pf, PJMEDIA_EVID_INIT); - - if (id <= PJMEDIA_VID_INVALID_DEV) - return PJMEDIA_EVID_INVDEV; - - status = lookup_dev(id, &f, &index); - if (status != PJ_SUCCESS) - return status; - - status = f->op->get_dev_info(f, index, info); - - /* Make sure device ID is the real ID (not PJMEDIA_VID_DEFAULT_*_DEV) */ - info->id = index; - make_global_index(f->sys.drv_idx, &info->id); - - return status; -} - -/* API: find device */ -PJ_DEF(pj_status_t) pjmedia_vid_dev_lookup( const char *drv_name, - const char *dev_name, - pjmedia_vid_dev_index *id) -{ - pjmedia_vid_dev_factory *f = NULL; - unsigned drv_idx, dev_idx; - - PJ_ASSERT_RETURN(drv_name && dev_name && id, PJ_EINVAL); - PJ_ASSERT_RETURN(vid_subsys.pf, PJMEDIA_EVID_INIT); - - for (drv_idx=0; drv_idx<vid_subsys.drv_cnt; ++drv_idx) { - if (!pj_ansi_stricmp(drv_name, vid_subsys.drv[drv_idx].name)) - { - f = vid_subsys.drv[drv_idx].f; - break; - } - } - - if (!f) - return PJ_ENOTFOUND; - - for (dev_idx=0; dev_idx<vid_subsys.drv[drv_idx].dev_cnt; ++dev_idx) - { - pjmedia_vid_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==vid_subsys.drv[drv_idx].dev_cnt) - return PJ_ENOTFOUND; - - *id = dev_idx; - make_global_index(drv_idx, id); - - return PJ_SUCCESS; -} - -/* API: Initialize the video device parameters with default values for the - * specified device. - */ -PJ_DEF(pj_status_t) pjmedia_vid_dev_default_param(pj_pool_t *pool, - pjmedia_vid_dev_index id, - pjmedia_vid_dev_param *param) -{ - pjmedia_vid_dev_factory *f; - unsigned index; - pj_status_t status; - - PJ_ASSERT_RETURN(param, PJ_EINVAL); - PJ_ASSERT_RETURN(vid_subsys.pf, PJMEDIA_EVID_INIT); - - if (id <= PJMEDIA_VID_INVALID_DEV) - return PJMEDIA_EVID_INVDEV; - - status = lookup_dev(id, &f, &index); - if (status != PJ_SUCCESS) - return status; - - status = f->op->default_param(pool, f, index, param); - if (status != PJ_SUCCESS) - return status; - - /* Normalize device IDs */ - make_global_index(f->sys.drv_idx, ¶m->cap_id); - make_global_index(f->sys.drv_idx, ¶m->rend_id); - - return PJ_SUCCESS; -} - -/* API: Open video stream object using the specified parameters. */ -PJ_DEF(pj_status_t) pjmedia_vid_dev_stream_create( - pjmedia_vid_dev_param *prm, - const pjmedia_vid_dev_cb *cb, - void *user_data, - pjmedia_vid_dev_stream **p_vid_strm) -{ - pjmedia_vid_dev_factory *cap_f=NULL, *rend_f=NULL, *f=NULL; - pj_status_t status; - - PJ_ASSERT_RETURN(prm && prm->dir && p_vid_strm, PJ_EINVAL); - PJ_ASSERT_RETURN(vid_subsys.pf, PJMEDIA_EVID_INIT); - PJ_ASSERT_RETURN(prm->dir==PJMEDIA_DIR_CAPTURE || - prm->dir==PJMEDIA_DIR_RENDER || - prm->dir==PJMEDIA_DIR_CAPTURE_RENDER, - PJ_EINVAL); - - /* Normalize cap_id */ - if (prm->dir & PJMEDIA_DIR_CAPTURE) { - unsigned index; - - if (prm->cap_id < 0) - prm->cap_id = PJMEDIA_VID_DEFAULT_CAPTURE_DEV; - - status = lookup_dev(prm->cap_id, &cap_f, &index); - if (status != PJ_SUCCESS) - return status; - - prm->cap_id = index; - f = cap_f; + vid_subsys->pf = NULL; } - - /* Normalize rend_id */ - if (prm->dir & PJMEDIA_DIR_RENDER) { - unsigned index; - - if (prm->rend_id < 0) - prm->rend_id = PJMEDIA_VID_DEFAULT_RENDER_DEV; - - status = lookup_dev(prm->rend_id, &rend_f, &index); - if (status != PJ_SUCCESS) - return status; - - prm->rend_id = index; - f = rend_f; - } - - PJ_ASSERT_RETURN(f != NULL, PJ_EBUG); - - /* For now, cap_id and rend_id must belong to the same factory */ - PJ_ASSERT_RETURN((prm->dir != PJMEDIA_DIR_CAPTURE_RENDER) || - (cap_f == rend_f), - PJMEDIA_EVID_INVDEV); - - /* Create the stream */ - status = f->op->create_stream(f, prm, cb, - user_data, p_vid_strm); - if (status != PJ_SUCCESS) - return status; - - /* Assign factory id to the stream */ - (*p_vid_strm)->sys.drv_idx = f->sys.drv_idx; return PJ_SUCCESS; } -/* API: Get the running parameters for the specified video stream. */ -PJ_DEF(pj_status_t) pjmedia_vid_dev_stream_get_param( - pjmedia_vid_dev_stream *strm, - pjmedia_vid_dev_param *param) -{ - pj_status_t status; - - PJ_ASSERT_RETURN(strm && param, PJ_EINVAL); - PJ_ASSERT_RETURN(vid_subsys.pf, PJMEDIA_EVID_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->cap_id); - make_global_index(strm->sys.drv_idx, ¶m->rend_id); - - return PJ_SUCCESS; -} - -/* API: Get the value of a specific capability of the video stream. */ -PJ_DEF(pj_status_t) pjmedia_vid_dev_stream_get_cap( - pjmedia_vid_dev_stream *strm, - pjmedia_vid_dev_cap cap, - void *value) -{ - return strm->op->get_cap(strm, cap, value); -} - -/* API: Set the value of a specific capability of the video stream. */ -PJ_DEF(pj_status_t) pjmedia_vid_dev_stream_set_cap( - pjmedia_vid_dev_stream *strm, - pjmedia_vid_dev_cap cap, - const void *value) -{ - /* For fast switching, device global index needs to be converted to - * local index before forwarding the request to the device stream. - */ - if (cap == PJMEDIA_VID_DEV_CAP_SWITCH) { - pjmedia_vid_dev_factory *f; - unsigned local_idx; - pj_status_t status; - pjmedia_vid_dev_switch_param p = *(pjmedia_vid_dev_switch_param*)value; - - status = lookup_dev(p.target_id, &f, &local_idx); - if (status != PJ_SUCCESS) - return status; - - /* Make sure that current & target devices share the same factory */ - if (f->sys.drv_idx != strm->sys.drv_idx) - return PJMEDIA_EVID_INVDEV; - - p.target_id = local_idx; - return strm->op->set_cap(strm, cap, &p); - } - - return strm->op->set_cap(strm, cap, value); -} - -/* API: Start the stream. */ -PJ_DEF(pj_status_t) pjmedia_vid_dev_stream_start(pjmedia_vid_dev_stream *strm) -{ - pj_status_t status; - - if (pjmedia_vid_dev_stream_is_running(strm)) - return PJ_SUCCESS; - - status = strm->op->start(strm); - if (status == PJ_SUCCESS) - strm->sys.is_running = PJ_TRUE; - return status; -} - -/* API: has it been started? */ -PJ_DEF(pj_bool_t) -pjmedia_vid_dev_stream_is_running(pjmedia_vid_dev_stream *strm) -{ - return strm->sys.is_running; -} - -PJ_DEF(pj_status_t) pjmedia_vid_dev_stream_get_frame( - pjmedia_vid_dev_stream *strm, - pjmedia_frame *frame) -{ - pj_assert(strm->op->get_frame); - return strm->op->get_frame(strm, frame); -} - -PJ_DEF(pj_status_t) pjmedia_vid_dev_stream_put_frame( - pjmedia_vid_dev_stream *strm, - const pjmedia_frame *frame) -{ - pj_assert(strm->op->put_frame); - return strm->op->put_frame(strm, frame); -} - -/* API: Stop the stream. */ -PJ_DEF(pj_status_t) pjmedia_vid_dev_stream_stop(pjmedia_vid_dev_stream *strm) -{ - strm->sys.is_running = PJ_FALSE; - return strm->op->stop(strm); -} - -/* API: Destroy the stream. */ -PJ_DEF(pj_status_t) pjmedia_vid_dev_stream_destroy( - pjmedia_vid_dev_stream *strm) -{ - strm->sys.is_running = PJ_FALSE; - return strm->op->destroy(strm); -} - #endif /* PJMEDIA_HAS_VIDEO */ |