/* $Id$ */ /* * Copyright (C) 2008-2010 Teluu Inc. (http://www.teluu.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #include #include #if defined(PJMEDIA_VIDEO_DEV_HAS_SDL) && PJMEDIA_VIDEO_DEV_HAS_SDL != 0 #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 # include "TargetConditionals.h" # include # define SDL_USE_ONE_THREAD_PER_DISPLAY 1 #elif defined(PJ_WIN32) && PJ_WIN32 != 0 # define SDL_USE_ONE_THREAD_PER_DISPLAY 1 #else # define SDL_USE_ONE_THREAD_PER_DISPLAY 0 #endif #include #include #if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL # include "SDL_opengl.h" # define OPENGL_DEV_IDX 1 #endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ #define THIS_FILE "sdl_dev.c" #define DEFAULT_CLOCK_RATE 90000 #define DEFAULT_WIDTH 640 #define DEFAULT_HEIGHT 480 #define DEFAULT_FPS 25 #if !(SDL_VERSION_ATLEAST(1,3,0)) # define SDL_PIXELFORMAT_RGBA8888 0 # define SDL_PIXELFORMAT_RGB24 0 # define SDL_PIXELFORMAT_BGRA8888 0 # define SDL_PIXELFORMAT_ABGR8888 0 # define SDL_PIXELFORMAT_BGR24 0 # define SDL_PIXELFORMAT_ARGB8888 0 # define SDL_PIXELFORMAT_RGB24 0 #endif /* !(SDL_VERSION_ATLEAST(1,3,0)) */ typedef struct sdl_fmt_info { pjmedia_format_id fmt_id; Uint32 sdl_format; Uint32 Rmask; Uint32 Gmask; Uint32 Bmask; Uint32 Amask; } sdl_fmt_info; static sdl_fmt_info sdl_fmts[] = { #if PJ_IS_BIG_ENDIAN {PJMEDIA_FORMAT_RGBA, (Uint32)SDL_PIXELFORMAT_RGBA8888, 0xFF000000, 0xFF0000, 0xFF00, 0xFF} , {PJMEDIA_FORMAT_RGB24, (Uint32)SDL_PIXELFORMAT_RGB24, 0xFF0000, 0xFF00, 0xFF, 0} , {PJMEDIA_FORMAT_BGRA, (Uint32)SDL_PIXELFORMAT_BGRA8888, 0xFF00, 0xFF0000, 0xFF000000, 0xFF} , #else /* PJ_IS_BIG_ENDIAN */ {PJMEDIA_FORMAT_RGBA, (Uint32)SDL_PIXELFORMAT_ABGR8888, 0xFF, 0xFF00, 0xFF0000, 0xFF000000} , {PJMEDIA_FORMAT_RGB24, (Uint32)SDL_PIXELFORMAT_BGR24, 0xFF, 0xFF00, 0xFF0000, 0} , {PJMEDIA_FORMAT_BGRA, (Uint32)SDL_PIXELFORMAT_ARGB8888, 0xFF0000, 0xFF00, 0xFF, 0xFF000000} , #endif /* PJ_IS_BIG_ENDIAN */ {PJMEDIA_FORMAT_DIB , (Uint32)SDL_PIXELFORMAT_RGB24, 0xFF0000, 0xFF00, 0xFF, 0} , {PJMEDIA_FORMAT_YUY2, SDL_YUY2_OVERLAY, 0, 0, 0, 0} , {PJMEDIA_FORMAT_UYVY, SDL_UYVY_OVERLAY, 0, 0, 0, 0} , {PJMEDIA_FORMAT_YVYU, SDL_YVYU_OVERLAY, 0, 0, 0, 0} , {PJMEDIA_FORMAT_I420, SDL_IYUV_OVERLAY, 0, 0, 0, 0} , {PJMEDIA_FORMAT_YV12, SDL_YV12_OVERLAY, 0, 0, 0, 0} , {PJMEDIA_FORMAT_I420JPEG, SDL_IYUV_OVERLAY, 0, 0, 0, 0} , {PJMEDIA_FORMAT_I422JPEG, SDL_YV12_OVERLAY, 0, 0, 0, 0} , }; #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 @interface SDLDelegate: NSObject { @public struct sdl_stream *strm; struct sdl_factory *sf; pjmedia_event_type ev_type; pj_status_t status; } - (void)sdl_init; - (void)sdl_quit; - (void)detect_fmt_change; - (void)sdl_create; - (void)sdl_destroy; - (void)handle_event; - (void)put_frame; @end #endif /* PJ_DARWINOS */ /* sdl_ device info */ struct sdl_dev_info { pjmedia_vid_dev_info info; }; /* Linked list of streams */ struct stream_list { PJ_DECL_LIST_MEMBER(struct stream_list); struct sdl_stream *stream; }; /* sdl_ factory */ struct sdl_factory { pjmedia_vid_dev_factory base; pj_pool_t *pool; pj_pool_factory *pf; unsigned dev_count; struct sdl_dev_info *dev_info; pj_thread_t *sdl_thread; /**< SDL thread. */ pj_status_t status; pj_sem_t *sem; pj_mutex_t *mutex; struct stream_list streams; pj_bool_t is_quitting; }; /* Video stream. */ struct sdl_stream { pjmedia_vid_dev_stream base; /**< Base stream */ pjmedia_vid_dev_param param; /**< Settings */ pj_pool_t *pool; /**< Memory pool. */ pjmedia_vid_dev_cb vid_cb; /**< Stream callback. */ void *user_data; /**< Application data. */ pj_thread_t *sdl_thread; /**< SDL thread. */ pj_bool_t is_initialized; pj_bool_t is_quitting; pj_bool_t is_destroyed; pj_bool_t is_running; pj_bool_t render_exited; pj_status_t status; pjmedia_format *new_fmt; pjmedia_rect_size *new_disp_size; pj_timestamp last_ts; pjmedia_frame frame; pj_size_t frame_buf_size; struct stream_list list_entry; struct sdl_factory *sf; #if SDL_VERSION_ATLEAST(1,3,0) SDL_Window *window; /**< Display window. */ SDL_Renderer *renderer; /**< Display renderer. */ SDL_Texture *scr_tex; /**< Screen texture. */ int pitch; /**< Pitch value. */ #endif /* SDL_VERSION_ATLEAST(1,3,0) */ SDL_Rect rect; /**< Frame rectangle. */ SDL_Rect dstrect; /**< Display rectangle. */ SDL_Surface *screen; /**< Display screen. */ SDL_Surface *surf; /**< RGB surface. */ SDL_Overlay *overlay; /**< YUV overlay. */ #if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL # if SDL_VERSION_ATLEAST(1,3,0) SDL_GLContext *gl_context; # endif /* SDL_VERSION_ATLEAST(1,3,0) */ GLuint texture; #endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ pjmedia_video_apply_fmt_param vafp; }; struct sdl_dev_t { struct sdl_factory *sf; struct sdl_stream *strm; }; /* Prototypes */ static pj_status_t sdl_factory_init(pjmedia_vid_dev_factory *f); static pj_status_t sdl_factory_destroy(pjmedia_vid_dev_factory *f); static pj_status_t sdl_factory_refresh(pjmedia_vid_dev_factory *f); static unsigned sdl_factory_get_dev_count(pjmedia_vid_dev_factory *f); static pj_status_t sdl_factory_get_dev_info(pjmedia_vid_dev_factory *f, unsigned index, pjmedia_vid_dev_info *info); static pj_status_t sdl_factory_default_param(pj_pool_t *pool, pjmedia_vid_dev_factory *f, unsigned index, pjmedia_vid_dev_param *param); static pj_status_t sdl_factory_create_stream( pjmedia_vid_dev_factory *f, pjmedia_vid_dev_param *param, const pjmedia_vid_dev_cb *cb, void *user_data, pjmedia_vid_dev_stream **p_vid_strm); static pj_status_t sdl_stream_get_param(pjmedia_vid_dev_stream *strm, pjmedia_vid_dev_param *param); static pj_status_t sdl_stream_get_cap(pjmedia_vid_dev_stream *strm, pjmedia_vid_dev_cap cap, void *value); static pj_status_t sdl_stream_set_cap(pjmedia_vid_dev_stream *strm, pjmedia_vid_dev_cap cap, const void *value); static pj_status_t sdl_stream_put_frame(pjmedia_vid_dev_stream *strm, const pjmedia_frame *frame); static pj_status_t sdl_stream_start(pjmedia_vid_dev_stream *strm); static pj_status_t sdl_stream_stop(pjmedia_vid_dev_stream *strm); static pj_status_t sdl_stream_destroy(pjmedia_vid_dev_stream *strm); static int sdl_thread(void * data); /* Operations */ static pjmedia_vid_dev_factory_op factory_op = { &sdl_factory_init, &sdl_factory_destroy, &sdl_factory_get_dev_count, &sdl_factory_get_dev_info, &sdl_factory_default_param, &sdl_factory_create_stream, &sdl_factory_refresh }; static pjmedia_vid_dev_stream_op stream_op = { &sdl_stream_get_param, &sdl_stream_get_cap, &sdl_stream_set_cap, &sdl_stream_start, NULL, &sdl_stream_put_frame, &sdl_stream_stop, &sdl_stream_destroy }; /**************************************************************************** * Factory operations */ /* * Init sdl_ video driver. */ pjmedia_vid_dev_factory* pjmedia_sdl_factory(pj_pool_factory *pf) { struct sdl_factory *f; pj_pool_t *pool; pool = pj_pool_create(pf, "sdl video", 1000, 1000, NULL); f = PJ_POOL_ZALLOC_T(pool, struct sdl_factory); f->pf = pf; f->pool = pool; f->base.op = &factory_op; return &f->base; } /* API: init factory */ static pj_status_t sdl_factory_init(pjmedia_vid_dev_factory *f) { struct sdl_factory *sf = (struct sdl_factory*)f; struct sdl_dev_info *ddi; unsigned i, j; struct sdl_dev_t sdl_dev; pj_status_t status; SDL_version version; pj_list_init(&sf->streams); status = pj_mutex_create_recursive(sf->pool, "sdl_factory", &sf->mutex); if (status != PJ_SUCCESS) return status; status = pj_sem_create(sf->pool, NULL, 0, 1, &sf->sem); if (status != PJ_SUCCESS) return status; sf->status = PJ_EUNKNOWN; sdl_dev.sf = sf; sdl_dev.strm = NULL; status = pj_thread_create(sf->pool, "sdl_thread", sdl_thread, &sdl_dev, 0, 0, &sf->sdl_thread); if (status != PJ_SUCCESS) { return PJMEDIA_EVID_INIT; } while (sf->status == PJ_EUNKNOWN) pj_thread_sleep(10); if (sf->status != PJ_SUCCESS) return sf->status; sf->dev_count = 1; #if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL sf->dev_count++; #endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ sf->dev_info = (struct sdl_dev_info*) pj_pool_calloc(sf->pool, sf->dev_count, sizeof(struct sdl_dev_info)); ddi = &sf->dev_info[0]; pj_bzero(ddi, sizeof(*ddi)); strncpy(ddi->info.name, "SDL renderer", sizeof(ddi->info.name)); ddi->info.name[sizeof(ddi->info.name)-1] = '\0'; ddi->info.fmt_cnt = PJ_ARRAY_SIZE(sdl_fmts); #if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL ddi = &sf->dev_info[OPENGL_DEV_IDX]; pj_bzero(ddi, sizeof(*ddi)); strncpy(ddi->info.name, "SDL openGL renderer", sizeof(ddi->info.name)); ddi->info.name[sizeof(ddi->info.name)-1] = '\0'; ddi->info.fmt_cnt = 1; #endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ for (i = 0; i < sf->dev_count; i++) { ddi = &sf->dev_info[i]; strncpy(ddi->info.driver, "SDL", sizeof(ddi->info.driver)); ddi->info.driver[sizeof(ddi->info.driver)-1] = '\0'; ddi->info.dir = PJMEDIA_DIR_RENDER; ddi->info.has_callback = PJ_FALSE; ddi->info.caps = PJMEDIA_VID_DEV_CAP_FORMAT | PJMEDIA_VID_DEV_CAP_OUTPUT_RESIZE; #if SDL_VERSION_ATLEAST(1,3,0) ddi->info.caps |= PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW; #endif /* SDL_VERSION_ATLEAST(1,3,0) */ for (j = 0; j < ddi->info.fmt_cnt; j++) { pjmedia_format *fmt = &ddi->info.fmt[j]; pjmedia_format_init_video(fmt, sdl_fmts[j].fmt_id, DEFAULT_WIDTH, DEFAULT_HEIGHT, DEFAULT_FPS, 1); } } SDL_VERSION(&version); PJ_LOG(4, (THIS_FILE, "SDL %d.%d initialized", version.major, version.minor)); return PJ_SUCCESS; } /* API: destroy factory */ static pj_status_t sdl_factory_destroy(pjmedia_vid_dev_factory *f) { struct sdl_factory *sf = (struct sdl_factory*)f; pj_pool_t *pool = sf->pool; pj_assert(pj_list_empty(&sf->streams)); sf->is_quitting = PJ_TRUE; if (sf->sdl_thread) { pj_sem_post(sf->sem); pj_thread_join(sf->sdl_thread); } if (sf->mutex) { pj_mutex_destroy(sf->mutex); sf->mutex = NULL; } if (sf->sem) { pj_sem_destroy(sf->sem); sf->sem = NULL; } sf->pool = NULL; pj_pool_release(pool); return PJ_SUCCESS; } /* API: refresh the list of devices */ static pj_status_t sdl_factory_refresh(pjmedia_vid_dev_factory *f) { PJ_UNUSED_ARG(f); return PJ_SUCCESS; } /* API: get number of devices */ static unsigned sdl_factory_get_dev_count(pjmedia_vid_dev_factory *f) { struct sdl_factory *sf = (struct sdl_factory*)f; return sf->dev_count; } /* API: get device info */ static pj_status_t sdl_factory_get_dev_info(pjmedia_vid_dev_factory *f, unsigned index, pjmedia_vid_dev_info *info) { struct sdl_factory *sf = (struct sdl_factory*)f; PJ_ASSERT_RETURN(index < sf->dev_count, PJMEDIA_EVID_INVDEV); pj_memcpy(info, &sf->dev_info[index].info, sizeof(*info)); return PJ_SUCCESS; } /* API: create default device parameter */ static pj_status_t sdl_factory_default_param(pj_pool_t *pool, pjmedia_vid_dev_factory *f, unsigned index, pjmedia_vid_dev_param *param) { struct sdl_factory *sf = (struct sdl_factory*)f; struct sdl_dev_info *di = &sf->dev_info[index]; PJ_ASSERT_RETURN(index < sf->dev_count, PJMEDIA_EVID_INVDEV); PJ_UNUSED_ARG(pool); pj_bzero(param, sizeof(*param)); param->dir = PJMEDIA_DIR_RENDER; param->rend_id = index; param->cap_id = PJMEDIA_VID_INVALID_DEV; /* Set the device capabilities here */ param->flags = PJMEDIA_VID_DEV_CAP_FORMAT; param->fmt.type = PJMEDIA_TYPE_VIDEO; param->clock_rate = DEFAULT_CLOCK_RATE; pj_memcpy(¶m->fmt, &di->info.fmt[0], sizeof(param->fmt)); return PJ_SUCCESS; } static sdl_fmt_info* get_sdl_format_info(pjmedia_format_id id) { unsigned i; for (i = 0; i < sizeof(sdl_fmts)/sizeof(sdl_fmts[0]); i++) { if (sdl_fmts[i].fmt_id == id) return &sdl_fmts[i]; } return NULL; } static void sdl_destroy(struct sdl_stream *strm, pj_bool_t destroy_win) { PJ_UNUSED_ARG(destroy_win); if (strm->surf) { SDL_FreeSurface(strm->surf); strm->surf = NULL; } if (strm->overlay) { SDL_FreeYUVOverlay(strm->overlay); strm->overlay = NULL; } #if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL if (strm->texture) { glDeleteTextures(1, &strm->texture); strm->texture = 0; } #endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ #if SDL_VERSION_ATLEAST(1,3,0) # if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL if (strm->gl_context) { SDL_GL_DeleteContext(strm->gl_context); strm->gl_context = NULL; } # endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ if (strm->scr_tex) { SDL_DestroyTexture(strm->scr_tex); strm->scr_tex = NULL; } if (strm->renderer) { SDL_DestroyRenderer(strm->renderer); strm->renderer = NULL; } # if !defined(TARGET_OS_IPHONE) || TARGET_OS_IPHONE == 0 if (destroy_win) { if (strm->window && !(strm->param.flags & PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW)) { SDL_DestroyWindow(strm->window); } strm->window = NULL; } # endif /* TARGET_OS_IPHONE */ #endif /* SDL_VERSION_ATLEAST(1,3,0) */ } static pj_status_t sdl_create_view(struct sdl_stream *strm, pjmedia_format *fmt) { sdl_fmt_info *sdl_info = get_sdl_format_info(fmt->id); const pjmedia_video_format_info *vfi; pjmedia_video_format_detail *vfd; vfi = pjmedia_get_video_format_info(pjmedia_video_format_mgr_instance(), fmt->id); if (!vfi || !sdl_info) return PJMEDIA_EVID_BADFORMAT; strm->vafp.size = fmt->det.vid.size; strm->vafp.buffer = NULL; if (vfi->apply_fmt(vfi, &strm->vafp) != PJ_SUCCESS) return PJMEDIA_EVID_BADFORMAT; vfd = pjmedia_format_get_video_format_detail(fmt, PJ_TRUE); strm->rect.x = strm->rect.y = 0; strm->rect.w = (Uint16)vfd->size.w; strm->rect.h = (Uint16)vfd->size.h; if (strm->param.disp_size.w == 0) strm->param.disp_size.w = strm->rect.w; if (strm->param.disp_size.h == 0) strm->param.disp_size.h = strm->rect.h; strm->dstrect.x = strm->dstrect.y = 0; strm->dstrect.w = (Uint16)strm->param.disp_size.w; strm->dstrect.h = (Uint16)strm->param.disp_size.h; sdl_destroy(strm, PJ_FALSE); #if SDL_VERSION_ATLEAST(1,3,0) if (!strm->window) { Uint32 flags = SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE; # if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL if (strm->param.rend_id == OPENGL_DEV_IDX) flags |= SDL_WINDOW_OPENGL; # endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ if (strm->param.flags & PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW) { /* Use the window supplied by the application. */ strm->window = SDL_CreateWindowFrom(strm->param.window.info.window); } else { /* Create the window where we will draw. */ strm->window = SDL_CreateWindow("pjmedia-SDL video", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, strm->param.disp_size.w, strm->param.disp_size.h, flags); } if (!strm->window) return PJMEDIA_EVID_SYSERR; } SDL_SetWindowSize(strm->window, strm->param.disp_size.w, strm->param.disp_size.h); /** * We must call SDL_CreateRenderer in order for draw calls to * affect this window. */ strm->renderer = SDL_CreateRenderer(strm->window, -1, 0); if (!strm->renderer) return PJMEDIA_EVID_SYSERR; # if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL if (strm->param.rend_id == OPENGL_DEV_IDX) { strm->gl_context = SDL_GL_CreateContext(strm->window); if (!strm->gl_context) return PJMEDIA_EVID_SYSERR; SDL_GL_MakeCurrent(strm->window, strm->gl_context); } # endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ strm->screen = SDL_GetWindowSurface(strm->window); #else /* SDL_VERSION_ATLEAST(1,3,0) */ /* Initialize the display */ strm->screen = SDL_SetVideoMode(strm->param.disp_size.w, strm->param.disp_size.h, 0, ( # if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL strm->param.rend_id == OPENGL_DEV_IDX? SDL_OPENGL | SDL_RESIZABLE: # endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ SDL_RESIZABLE | SDL_SWSURFACE)); if (strm->screen == NULL) return PJMEDIA_EVID_SYSERR; SDL_WM_SetCaption("pjmedia-SDL video", NULL); #endif /* SDL_VERSION_ATLEAST(1,3,0) */ #if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL if (strm->param.rend_id == OPENGL_DEV_IDX) { /* Init some OpenGL settings */ glDisable(GL_DEPTH_TEST); glDisable(GL_CULL_FACE); glEnable(GL_TEXTURE_2D); /* Init the viewport */ glViewport(0, 0, strm->param.disp_size.w, strm->param.disp_size.h); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glOrtho(0.0, (GLdouble)strm->param.disp_size.w, (GLdouble)strm->param.disp_size.h, 0.0, 0.0, 1.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); /* Create a texture */ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); glGenTextures(1, &strm->texture); if (!strm->texture) return PJMEDIA_EVID_SYSERR; } else #endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ #if SDL_VERSION_ATLEAST(1,3,0) { strm->scr_tex = SDL_CreateTexture(strm->renderer, sdl_info->sdl_format, SDL_TEXTUREACCESS_STREAMING, strm->rect.w, strm->rect.h); if (strm->scr_tex == NULL) return PJMEDIA_EVID_SYSERR; strm->pitch = strm->rect.w * SDL_BYTESPERPIXEL(sdl_info->sdl_format); } #else /* SDL_VERSION_ATLEAST(1,3,0) */ if (vfi->color_model == PJMEDIA_COLOR_MODEL_RGB) { strm->surf = SDL_CreateRGBSurface(SDL_SWSURFACE, strm->rect.w, strm->rect.h, vfi->bpp, sdl_info->Rmask, sdl_info->Gmask, sdl_info->Bmask, sdl_info->Amask); if (strm->surf == NULL) return PJMEDIA_EVID_SYSERR; } else if (vfi->color_model == PJMEDIA_COLOR_MODEL_YUV) { strm->overlay = SDL_CreateYUVOverlay(strm->rect.w, strm->rect.h, sdl_info->sdl_format, strm->screen); if (strm->overlay == NULL) return PJMEDIA_EVID_SYSERR; } #endif /* SDL_VERSION_ATLEAST(1,3,0) */ if (strm->vafp.framebytes > strm->frame_buf_size) { strm->frame_buf_size = strm->vafp.framebytes; strm->frame.buf = pj_pool_alloc(strm->pool, strm->vafp.framebytes); } return PJ_SUCCESS; } static pj_status_t sdl_create(struct sdl_stream *strm) { strm->is_initialized = PJ_TRUE; #if !(SDL_VERSION_ATLEAST(1,3,0)) if (SDL_Init(SDL_INIT_VIDEO)) { strm->status = PJMEDIA_EVID_INIT; return strm->status; } #endif /* !(SDL_VERSION_ATLEAST(1,3,0)) */ #if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL if (strm->param.rend_id == OPENGL_DEV_IDX) { SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1); } #endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ strm->status = sdl_create_view(strm, &strm->param.fmt); return strm->status; } static void detect_fmt_change(struct sdl_stream *strm) { strm->status = PJ_SUCCESS; if (strm->new_fmt || strm->new_disp_size) { if (strm->new_disp_size) pj_memcpy(&strm->param.disp_size, strm->new_disp_size, sizeof(strm->param.disp_size)); /* Re-initialize SDL */ strm->status = sdl_create_view(strm, (strm->new_fmt? strm->new_fmt : &strm->param.fmt)); if (strm->status == PJ_SUCCESS) { if (strm->new_fmt) pjmedia_format_copy(&strm->param.fmt, strm->new_fmt); } strm->new_fmt = NULL; strm->new_disp_size = NULL; } } static pj_status_t put_frame(struct sdl_stream *stream, const pjmedia_frame *frame) { if (!stream->is_running) return PJ_SUCCESS; if (stream->surf) { if (SDL_MUSTLOCK(stream->surf)) { if (SDL_LockSurface(stream->surf) < 0) { PJ_LOG(3, (THIS_FILE, "Unable to lock SDL surface")); return PJMEDIA_EVID_NOTREADY; } } pj_memcpy(stream->surf->pixels, frame->buf, stream->vafp.framebytes); if (SDL_MUSTLOCK(stream->surf)) { SDL_UnlockSurface(stream->surf); } #if SDL_VERSION_ATLEAST(1,3,0) SDL_UpdateWindowSurface(stream->window); #else /* SDL_VERSION_ATLEAST(1,3,0) */ SDL_BlitSurface(stream->surf, NULL, stream->screen, &stream->dstrect); #endif /* SDL_VERSION_ATLEAST(1,3,0) */ } else if (stream->overlay) { int i, sz, offset; if (SDL_LockYUVOverlay(stream->overlay) < 0) { PJ_LOG(3, (THIS_FILE, "Unable to lock SDL overlay")); return PJMEDIA_EVID_NOTREADY; } for (i = 0, offset = 0; i < stream->overlay->planes; i++) { sz = stream->vafp.plane_bytes[i]; pj_memcpy(stream->overlay->pixels[i], (char *)frame->buf + offset, sz); offset += sz; } SDL_UnlockYUVOverlay(stream->overlay); SDL_DisplayYUVOverlay(stream->overlay, &stream->dstrect); } #if SDL_VERSION_ATLEAST(1,3,0) else if (stream->scr_tex) { SDL_UpdateTexture(stream->scr_tex, NULL, frame->buf, stream->pitch); SDL_RenderClear(stream->renderer); SDL_RenderCopy(stream->renderer, stream->scr_tex, NULL, NULL); SDL_RenderPresent(stream->renderer); } #endif /* SDL_VERSION_ATLEAST(1,3,0) */ #if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL else if (stream->param.rend_id == OPENGL_DEV_IDX && stream->texture) { glBindTexture(GL_TEXTURE_2D, stream->texture); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, stream->rect.w, stream->rect.h, 0, GL_RGBA, GL_UNSIGNED_BYTE, frame->buf); glBegin(GL_TRIANGLE_STRIP); glTexCoord2f(0, 0); glVertex2i(0, 0); glTexCoord2f(1, 0); glVertex2i(stream->param.disp_size.w, 0); glTexCoord2f(0, 1); glVertex2i(0, stream->param.disp_size.h); glTexCoord2f(1, 1); glVertex2i(stream->param.disp_size.w, stream->param.disp_size.h); glEnd(); # if SDL_VERSION_ATLEAST(1,3,0) SDL_GL_SwapWindow(stream->window); # else /* SDL_VERSION_ATLEAST(1,3,0) */ SDL_GL_SwapBuffers(); # endif /* SDL_VERSION_ATLEAST(1,3,0) */ } #endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ return PJ_SUCCESS; } static struct sdl_stream* find_stream(struct sdl_factory *sf, Uint32 windowID, pjmedia_event *pevent) { struct stream_list *it, *itBegin; struct sdl_stream *strm = NULL; itBegin = &sf->streams; for (it = itBegin->next; it != itBegin; it = it->next) { #if SDL_VERSION_ATLEAST(1,3,0) if (SDL_GetWindowID(it->stream->window) == windowID) #else /* SDL_VERSION_ATLEAST(1,3,0) */ PJ_UNUSED_ARG(windowID); #endif /* SDL_VERSION_ATLEAST(1,3,0) */ { strm = it->stream; break; } } if (strm) pjmedia_event_init(pevent, PJMEDIA_EVENT_NONE, &strm->last_ts, &strm->base.epub); return strm; } static int poll_event(struct sdl_factory *sf, pjmedia_event *pevent, struct sdl_stream **strm) { int retval; SDL_Event sevent; retval = SDL_PollEvent(&sevent); if (retval) { #if !(SDL_VERSION_ATLEAST(1,3,0)) *strm = find_stream(sf, 0, pevent); pj_assert(strm); #endif /* !(SDL_VERSION_ATLEAST(1,3,0)) */ switch(sevent.type) { case SDL_MOUSEBUTTONDOWN: #if SDL_VERSION_ATLEAST(1,3,0) *strm = find_stream(sf, sevent.button.windowID, pevent); #endif /* SDL_VERSION_ATLEAST(1,3,0) */ pevent->type = PJMEDIA_EVENT_MOUSE_BTN_DOWN; break; #if SDL_VERSION_ATLEAST(1,3,0) case SDL_WINDOWEVENT: *strm = find_stream(sf, sevent.window.windowID, pevent); switch (sevent.window.event) { case SDL_WINDOWEVENT_RESIZED: pevent->type = PJMEDIA_EVENT_WND_RESIZED; pevent->data.wnd_resized.new_size.w = sevent.window.data1; pevent->data.wnd_resized.new_size.h = sevent.window.data2; break; case SDL_WINDOWEVENT_CLOSE: pevent->type = PJMEDIA_EVENT_WND_CLOSING; break; } break; #else /* SDL_VERSION_ATLEAST(1,3,0) */ case SDL_VIDEORESIZE: pevent->type = PJMEDIA_EVENT_WND_RESIZED; pevent->data.wnd_resized.new_size.w = sevent.resize.w; pevent->data.wnd_resized.new_size.h = sevent.resize.h; break; case SDL_QUIT: pevent->type = PJMEDIA_EVENT_WND_CLOSING; break; #endif /* SDL_VERSION_ATLEAST(1,3,0) */ } } return retval; } static struct sdl_stream* handle_event(struct sdl_factory *sf, struct sdl_stream *rcv_strm, pjmedia_event_type *ev_type) { struct sdl_stream *strm = NULL; pjmedia_event pevent; *ev_type = PJMEDIA_EVENT_NONE; while (poll_event(sf, &pevent, &strm)) { *ev_type = pevent.type; if (pevent.type != PJMEDIA_EVENT_NONE && strm && (!rcv_strm || rcv_strm == strm)) { pjmedia_event_publish(&strm->base.epub, &pevent); switch (pevent.type) { case PJMEDIA_EVENT_WND_RESIZED: strm->new_disp_size = &pevent.data.wnd_resized.new_size; strm->status = PJ_SUCCESS; detect_fmt_change(strm); if (strm->status != PJ_SUCCESS) return strm; break; case PJMEDIA_EVENT_WND_CLOSING: if (pevent.data.wnd_closing.cancel) { /* Cancel the closing operation */ break; } /* Proceed to cleanup SDL. App must still call * pjmedia_dev_stream_destroy() when getting WND_CLOSED * event */ strm->is_quitting = PJ_TRUE; sdl_stream_stop(&strm->base); return strm; default: /* Just to prevent gcc warning about unused enums */ break; } } } return strm; } static int sdl_thread(void * data) { struct sdl_dev_t *sdl_dev = (struct sdl_dev_t *)data; struct sdl_factory *sf = sdl_dev->sf; struct sdl_stream *strm = sdl_dev->strm; #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 NSAutoreleasePool *apool = [[NSAutoreleasePool alloc] init]; SDLDelegate *delegate = [[SDLDelegate alloc] init]; #endif /* PJ_DARWINOS */ #if SDL_VERSION_ATLEAST(1,3,0) # if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 [delegate performSelectorOnMainThread:@selector(sdl_init) withObject:nil waitUntilDone:YES]; if (delegate->status != PJ_SUCCESS) goto on_error; # else /* PJ_DARWINOS */ /* Initialize the SDL library */ if (SDL_Init(SDL_INIT_VIDEO)) { sf->status = PJMEDIA_EVID_INIT; goto on_error; } # endif /* PJ_DARWINOS */ #endif /* SDL_VERSION_ATLEAST(1,3,0) */ sf->status = PJ_SUCCESS; while (!sf->is_quitting) { struct stream_list *it, *itBegin; pjmedia_event_type ev_type; struct sdl_stream *ev_stream; pj_mutex_lock(sf->mutex); if (!strm && pj_list_empty(&sf->streams)) { /* Wait until there is any stream. */ pj_mutex_unlock(sf->mutex); pj_sem_wait(sf->sem); pj_mutex_lock(sf->mutex); } itBegin = &sf->streams; for (it = itBegin->next; it != itBegin; it = it->next) { if ((strm && it->stream != strm) || it->stream->is_quitting) continue; if (!it->stream->is_initialized) { #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 delegate->strm = it->stream; [delegate performSelectorOnMainThread:@selector(sdl_create) withObject:nil waitUntilDone:YES]; #else /* PJ_DARWINOS */ sdl_create(it->stream); #endif /* PJ_DARWINOS */ } #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 delegate->strm = it->stream; [delegate performSelectorOnMainThread:@selector(detect_fmt_change) withObject:nil waitUntilDone:YES]; [delegate performSelectorOnMainThread:@selector(put_frame) withObject:nil waitUntilDone:YES]; #else /* PJ_DARWINOS */ detect_fmt_change(it->stream); put_frame(it->stream, &it->stream->frame); #endif /* PJ_DARWINOS */ } #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 delegate->sf = sf; delegate->strm = strm; [delegate performSelectorOnMainThread:@selector(handle_event) withObject:nil waitUntilDone:YES]; ev_stream = delegate->strm; ev_type = delegate->ev_type; #else /* PJ_DARWINOS */ ev_stream = handle_event(sf, strm, &ev_type); #endif /* PJ_DARWINOS */ itBegin = &sf->streams; for (it = itBegin->next; it != itBegin; it = it->next) { if ((strm && it->stream != strm) || !it->stream->is_quitting || it->stream->is_destroyed) continue; #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 delegate->strm = it->stream; [delegate performSelectorOnMainThread:@selector(sdl_destroy) withObject:nil waitUntilDone:YES]; # if !(SDL_VERSION_ATLEAST(1,3,0)) [delegate performSelectorOnMainThread:@selector(sdl_quit) withObject:nil waitUntilDone:YES]; # endif /* !(SDL_VERSION_ATLEAST(1,3,0)) */ #else /* PJ_DARWINOS */ sdl_destroy(it->stream, PJ_TRUE); # if !(SDL_VERSION_ATLEAST(1,3,0)) SDL_Quit(); # endif /* !(SDL_VERSION_ATLEAST(1,3,0)) */ #endif /* PJ_DARWINOS */ it->stream->screen = NULL; it->stream->is_destroyed = PJ_TRUE; if (ev_type == PJMEDIA_EVENT_WND_CLOSING && it->stream == ev_stream) { pjmedia_event p_event; pjmedia_event_init(&p_event, PJMEDIA_EVENT_WND_CLOSED, &it->stream->last_ts, &it->stream->base.epub); pjmedia_event_publish(&it->stream->base.epub, &p_event); /* * Note: don't access the stream after this point, it * might have been destroyed */ } if (strm) { pj_mutex_unlock(sf->mutex); return 0; } } pj_mutex_unlock(sf->mutex); } on_error: #if SDL_VERSION_ATLEAST(1,3,0) # if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 [delegate performSelectorOnMainThread:@selector(sdl_quit) withObject:nil waitUntilDone:YES]; [delegate release]; [apool release]; # else /* PJ_DARWINOS */ SDL_Quit(); # endif /* PJ_DARWINOS */ #endif /* SDL_VERSION_ATLEAST(1,3,0) */ return 0; } /* API: Put frame from stream */ static pj_status_t sdl_stream_put_frame(pjmedia_vid_dev_stream *strm, const pjmedia_frame *frame) { struct sdl_stream *stream = (struct sdl_stream*)strm; stream->last_ts.u64 = frame->timestamp.u64; if (!stream->is_running) { stream->render_exited = PJ_TRUE; return PJ_SUCCESS; } if (frame->size==0 || frame->buf==NULL || frame->size < stream->vafp.framebytes) return PJ_SUCCESS; pj_memcpy(stream->frame.buf, frame->buf, stream->vafp.framebytes); return PJ_SUCCESS; } /* API: create stream */ static pj_status_t sdl_factory_create_stream( pjmedia_vid_dev_factory *f, pjmedia_vid_dev_param *param, const pjmedia_vid_dev_cb *cb, void *user_data, pjmedia_vid_dev_stream **p_vid_strm) { struct sdl_factory *sf = (struct sdl_factory*)f; pj_pool_t *pool; struct sdl_stream *strm; pj_status_t status; PJ_ASSERT_RETURN(param->dir == PJMEDIA_DIR_RENDER, PJ_EINVAL); #if !SDL_VERSION_ATLEAST(1,3,0) /* Prior to 1.3, SDL does not support multiple renderers. */ pj_mutex_lock(sf->mutex); if (!pj_list_empty(&sf->streams) { pj_mutex_unlock(sf->mutex); return PJMEDIA_EVID_NOTREADY; } pj_mutex_unlock(sf->mutex); #endif /* Create and Initialize stream descriptor */ pool = pj_pool_create(sf->pf, "sdl-dev", 1000, 1000, NULL); PJ_ASSERT_RETURN(pool != NULL, PJ_ENOMEM); strm = PJ_POOL_ZALLOC_T(pool, struct sdl_stream); pj_memcpy(&strm->param, param, sizeof(*param)); strm->pool = pool; strm->sf = sf; pj_memcpy(&strm->vid_cb, cb, sizeof(*cb)); strm->user_data = user_data; pjmedia_event_publisher_init(&strm->base.epub, PJMEDIA_SIG_VID_DEV_SDL); pj_list_init(&strm->list_entry); strm->list_entry.stream = strm; /* Create render stream here */ if (param->dir & PJMEDIA_DIR_RENDER) { struct sdl_dev_t sdl_dev; strm->status = PJ_SUCCESS; sdl_dev.sf = strm->sf; sdl_dev.strm = strm; pj_mutex_lock(strm->sf->mutex); #if !SDL_USE_ONE_THREAD_PER_DISPLAY if (pj_list_empty(&strm->sf->streams)) pj_sem_post(strm->sf->sem); #endif /* !SDL_USE_ONE_THREAD_PER_DISPLAY */ pj_list_insert_after(&strm->sf->streams, &strm->list_entry); pj_mutex_unlock(strm->sf->mutex); #if SDL_USE_ONE_THREAD_PER_DISPLAY status = pj_thread_create(pool, "sdl_thread", sdl_thread, &sdl_dev, 0, 0, &strm->sdl_thread); if (status != PJ_SUCCESS) { goto on_error; } #endif /* SDL_USE_ONE_THREAD_PER_DISPLAY */ while(strm->status == PJ_SUCCESS && !strm->surf && !strm->overlay #if SDL_VERSION_ATLEAST(1,3,0) && !strm->scr_tex #endif /* SDL_VERSION_ATLEAST(1,3,0) */ #if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL && !strm->texture #endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ ) { pj_thread_sleep(10); } if ((status = strm->status) != PJ_SUCCESS) { goto on_error; } } /* Apply the remaining settings */ if (param->flags & PJMEDIA_VID_DEV_CAP_OUTPUT_POSITION) { sdl_stream_set_cap(&strm->base, PJMEDIA_VID_DEV_CAP_OUTPUT_POSITION, ¶m->window_pos); } if (param->flags & PJMEDIA_VID_DEV_CAP_OUTPUT_HIDE) { sdl_stream_set_cap(&strm->base, PJMEDIA_VID_DEV_CAP_OUTPUT_HIDE, ¶m->window_hide); } /* Done */ strm->base.op = &stream_op; *p_vid_strm = &strm->base; return PJ_SUCCESS; on_error: sdl_stream_destroy(&strm->base); return status; } /* API: Get stream info. */ static pj_status_t sdl_stream_get_param(pjmedia_vid_dev_stream *s, pjmedia_vid_dev_param *pi) { struct sdl_stream *strm = (struct sdl_stream*)s; PJ_ASSERT_RETURN(strm && pi, PJ_EINVAL); pj_memcpy(pi, &strm->param, sizeof(*pi)); if (sdl_stream_get_cap(s, PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW, &pi->window) == PJ_SUCCESS) { pi->flags |= PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW; } if (sdl_stream_get_cap(s, PJMEDIA_VID_DEV_CAP_OUTPUT_POSITION, &pi->window_pos) == PJ_SUCCESS) { pi->flags |= PJMEDIA_VID_DEV_CAP_OUTPUT_POSITION; } if (sdl_stream_get_cap(s, PJMEDIA_VID_DEV_CAP_OUTPUT_RESIZE, &pi->disp_size) == PJ_SUCCESS) { pi->flags |= PJMEDIA_VID_DEV_CAP_OUTPUT_RESIZE; } if (sdl_stream_get_cap(s, PJMEDIA_VID_DEV_CAP_OUTPUT_HIDE, &pi->window_hide) == PJ_SUCCESS) { pi->flags |= PJMEDIA_VID_DEV_CAP_OUTPUT_HIDE; } return PJ_SUCCESS; } /* API: get capability */ static pj_status_t sdl_stream_get_cap(pjmedia_vid_dev_stream *s, pjmedia_vid_dev_cap cap, void *pval) { struct sdl_stream *strm = (struct sdl_stream*)s; PJ_UNUSED_ARG(strm); PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); #if SDL_VERSION_ATLEAST(1,3,0) if (cap == PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW) { SDL_SysWMinfo info; SDL_VERSION(&info.version); if (SDL_GetWindowWMInfo(strm->window, &info)) { pjmedia_vid_dev_hwnd *wnd = (pjmedia_vid_dev_hwnd *)pval; if (info.subsystem == SDL_SYSWM_WINDOWS) { #if defined(SDL_VIDEO_DRIVER_WINDOWS) wnd->type = PJMEDIA_VID_DEV_HWND_TYPE_WINDOWS; wnd->info.win.hwnd = (void *)info.info.win.window; #endif } else if (info.subsystem == SDL_SYSWM_X11) { #if defined(SDL_VIDEO_DRIVER_X11) wnd->info.x11.window = (void *)info.info.x11.window; wnd->info.x11.display = (void *)info.info.x11.display; #endif } else if (info.subsystem == SDL_SYSWM_COCOA) { #if defined(SDL_VIDEO_DRIVER_COCOA) wnd->info.cocoa.window = (void *)info.info.cocoa.window; #endif } else if (info.subsystem == SDL_SYSWM_UIKIT) { #if defined(SDL_VIDEO_DRIVER_UIKIT) wnd->info.ios.window = (void *)info.info.uikit.window; #endif } return PJ_SUCCESS; } else return PJMEDIA_EVID_INVCAP; } else if (cap == PJMEDIA_VID_DEV_CAP_OUTPUT_POSITION) { SDL_GetWindowPosition(strm->window, &((pjmedia_coord *)pval)->x, &((pjmedia_coord *)pval)->y); return PJ_SUCCESS; } else if (cap == PJMEDIA_VID_DEV_CAP_OUTPUT_RESIZE) { SDL_GetWindowSize(strm->window, (int *)&((pjmedia_rect_size *)pval)->w, (int *)&((pjmedia_rect_size *)pval)->h); return PJ_SUCCESS; } else if (cap == PJMEDIA_VID_DEV_CAP_OUTPUT_HIDE) { Uint32 flag = SDL_GetWindowFlags(strm->window); *((pj_bool_t *)pval) = (flag | SDL_WINDOW_HIDDEN)? PJ_TRUE: PJ_FALSE; return PJ_SUCCESS; } #else /* SDL_VERSION_ATLEAST(1,3,0) */ PJ_UNUSED_ARG(cap); #endif /* SDL_VERSION_ATLEAST(1,3,0) */ return PJMEDIA_EVID_INVCAP; } /* API: set capability */ static pj_status_t sdl_stream_set_cap(pjmedia_vid_dev_stream *s, pjmedia_vid_dev_cap cap, const void *pval) { struct sdl_stream *strm = (struct sdl_stream*)s; PJ_UNUSED_ARG(strm); PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); #if SDL_VERSION_ATLEAST(1,3,0) if (cap == PJMEDIA_VID_DEV_CAP_OUTPUT_POSITION) { SDL_SetWindowPosition(strm->window, ((pjmedia_coord *)pval)->x, ((pjmedia_coord *)pval)->y); return PJ_SUCCESS; } else if (cap == PJMEDIA_VID_DEV_CAP_OUTPUT_HIDE) { if (*(pj_bool_t *)pval) SDL_HideWindow(strm->window); else SDL_ShowWindow(strm->window); return PJ_SUCCESS; } else #endif /* SDL_VERSION_ATLEAST(1,3,0) */ if (cap == PJMEDIA_VID_DEV_CAP_FORMAT) { strm->new_fmt = (pjmedia_format *)pval; while (strm->new_fmt) pj_thread_sleep(10); if (strm->status != PJ_SUCCESS) { pj_status_t status = strm->status; /** * Failed to change the output format. Try to revert * to its original format. */ strm->new_fmt = &strm->param.fmt; while (strm->new_fmt) pj_thread_sleep(10); if (strm->status != PJ_SUCCESS) { /** * This means that we failed to revert to our * original state! */ status = PJMEDIA_EVID_ERR; } strm->status = status; } return strm->status; } else if (cap == PJMEDIA_VID_DEV_CAP_OUTPUT_RESIZE) { strm->new_disp_size = (pjmedia_rect_size *)pval; while (strm->new_disp_size) pj_thread_sleep(10); return strm->status; } return PJMEDIA_EVID_INVCAP; } /* API: Start stream. */ static pj_status_t sdl_stream_start(pjmedia_vid_dev_stream *strm) { struct sdl_stream *stream = (struct sdl_stream*)strm; PJ_LOG(4, (THIS_FILE, "Starting sdl video stream")); stream->is_running = PJ_TRUE; stream->render_exited = PJ_FALSE; return PJ_SUCCESS; } /* API: Stop stream. */ static pj_status_t sdl_stream_stop(pjmedia_vid_dev_stream *strm) { struct sdl_stream *stream = (struct sdl_stream*)strm; unsigned i; PJ_LOG(4, (THIS_FILE, "Stopping sdl video stream")); /* Wait for renderer put_frame() to finish */ stream->is_running = PJ_FALSE; for (i=0; !stream->render_exited && i<50; ++i) pj_thread_sleep(10); return PJ_SUCCESS; } /* API: Destroy stream. */ static pj_status_t sdl_stream_destroy(pjmedia_vid_dev_stream *strm) { struct sdl_stream *stream = (struct sdl_stream*)strm; PJ_ASSERT_RETURN(stream != NULL, PJ_EINVAL); sdl_stream_stop(strm); if (!stream->is_quitting) { stream->is_quitting = PJ_TRUE; if (stream->sdl_thread) pj_thread_join(stream->sdl_thread); while (!stream->is_destroyed) { pj_thread_sleep(10); } } pj_mutex_lock(stream->sf->mutex); if (!pj_list_empty(&stream->list_entry)) pj_list_erase(&stream->list_entry); pj_mutex_unlock(stream->sf->mutex); pj_pool_release(stream->pool); return PJ_SUCCESS; } #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 @implementation SDLDelegate - (void)sdl_init { if (SDL_Init(SDL_INIT_VIDEO)) { PJ_LOG(4, (THIS_FILE, "Cannot initialize SDL")); status = PJMEDIA_EVID_INIT; } status = PJ_SUCCESS; } - (void)sdl_quit { SDL_Quit(); } - (void)detect_fmt_change { detect_fmt_change(strm); } - (void)sdl_create { sdl_create(strm); } - (void)sdl_destroy { sdl_destroy(strm, PJ_TRUE); } - (void)handle_event { strm = handle_event(sf, strm, &ev_type); } - (void)put_frame { put_frame(strm, &strm->frame); } @end #endif /* PJ_DARWINOS */ #ifdef _MSC_VER # pragma comment( lib, "sdl.lib") # if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL # pragma comment(lib, "OpenGL32.lib") # endif /* PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL */ #endif /* _MSC_VER */ #endif /* PJMEDIA_VIDEO_DEV_HAS_SDL */