| /* $Id$ */ |
| /* |
| * 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 <pjmedia/converter.h> |
| #include <pjmedia-videodev/videodev_imp.h> |
| #include <pj/assert.h> |
| #include <pj/log.h> |
| #include <pj/os.h> |
| |
| #if PJMEDIA_VIDEO_DEV_HAS_SDL |
| |
| #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 |
| # include <Foundation/NSAutoreleasePool.h> |
| #endif |
| |
| #include <SDL.h> |
| |
| #define THIS_FILE "sdl_dev.c" |
| #define DEFAULT_CLOCK_RATE 90000 |
| #define DEFAULT_WIDTH 640 |
| #define DEFAULT_HEIGHT 480 |
| #define DEFAULT_FPS 25 |
| |
| |
| 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, 0, 0xFF000000, 0xFF0000, 0xFF00, 0xFF} , |
| {PJMEDIA_FORMAT_RGB24, 0, 0xFF0000, 0xFF00, 0xFF, 0} , |
| {PJMEDIA_FORMAT_BGRA, 0, 0xFF00, 0xFF0000, 0xFF000000, 0xFF} , |
| #else |
| {PJMEDIA_FORMAT_RGBA, 0, 0xFF, 0xFF00, 0xFF0000, 0xFF000000} , |
| {PJMEDIA_FORMAT_RGB24, 0, 0xFF, 0xFF00, 0xFF0000, 0} , |
| {PJMEDIA_FORMAT_BGRA, 0, 0xFF0000, 0xFF00, 0xFF, 0xFF000000} , |
| #endif |
| |
| {PJMEDIA_FORMAT_DIB , 0, 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} , |
| }; |
| |
| /* sdl_ device info */ |
| struct sdl_dev_info |
| { |
| pjmedia_vid_dev_info info; |
| }; |
| |
| /* 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; |
| }; |
| |
| /* Video stream. */ |
| struct sdl_stream |
| { |
| pjmedia_vid_stream base; /**< Base stream */ |
| pjmedia_vid_param param; /**< Settings */ |
| pj_pool_t *pool; /**< Memory pool. */ |
| |
| pjmedia_vid_cb vid_cb; /**< Stream callback. */ |
| void *user_data; /**< Application data. */ |
| |
| pj_thread_t *sdl_thread; /**< SDL thread. */ |
| pj_bool_t is_quitting; |
| pj_bool_t is_running; |
| pj_bool_t render_exited; |
| pj_status_t status; |
| |
| SDL_Rect rect; /**< Display rectangle. */ |
| SDL_Surface *screen; /**< Display screen. */ |
| SDL_Surface *surf; /**< RGB surface. */ |
| SDL_Overlay *overlay; /**< YUV overlay. */ |
| |
| /* For frame conversion */ |
| pjmedia_converter *conv; |
| pjmedia_conversion_param conv_param; |
| pjmedia_frame conv_buf; |
| |
| pjmedia_video_apply_fmt_param vafp; |
| }; |
| |
| |
| /* 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 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_param *param); |
| static pj_status_t sdl_factory_create_stream(pjmedia_vid_dev_factory *f, |
| const pjmedia_vid_param *param, |
| const pjmedia_vid_cb *cb, |
| void *user_data, |
| pjmedia_vid_stream **p_vid_strm); |
| |
| static pj_status_t sdl_stream_get_param(pjmedia_vid_stream *strm, |
| pjmedia_vid_param *param); |
| static pj_status_t sdl_stream_get_cap(pjmedia_vid_stream *strm, |
| pjmedia_vid_dev_cap cap, |
| void *value); |
| static pj_status_t sdl_stream_set_cap(pjmedia_vid_stream *strm, |
| pjmedia_vid_dev_cap cap, |
| const void *value); |
| static pj_status_t sdl_stream_put_frame(pjmedia_vid_stream *strm, |
| const pjmedia_frame *frame); |
| static pj_status_t sdl_stream_start(pjmedia_vid_stream *strm); |
| static pj_status_t sdl_stream_stop(pjmedia_vid_stream *strm); |
| static pj_status_t sdl_stream_destroy(pjmedia_vid_stream *strm); |
| |
| /* 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 |
| }; |
| |
| static pjmedia_vid_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; |
| |
| sf->dev_count = 1; |
| 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'; |
| 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; |
| |
| ddi->info.fmt_cnt = PJ_ARRAY_SIZE(sdl_fmts); |
| ddi->info.fmt = (pjmedia_format*) |
| pj_pool_calloc(sf->pool, ddi->info.fmt_cnt, |
| sizeof(pjmedia_format)); |
| for (i = 0; i < ddi->info.fmt_cnt; i++) { |
| pjmedia_format *fmt = &ddi->info.fmt[i]; |
| pjmedia_format_init_video(fmt, sdl_fmts[i].fmt_id, |
| DEFAULT_WIDTH, DEFAULT_HEIGHT, |
| DEFAULT_FPS, 1); |
| } |
| |
| PJ_LOG(4, (THIS_FILE, "SDL initialized")); |
| |
| 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; |
| |
| sf->pool = NULL; |
| pj_pool_release(pool); |
| |
| 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_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)); |
| if (di->info.dir & PJMEDIA_DIR_CAPTURE_RENDER) { |
| param->dir = PJMEDIA_DIR_CAPTURE_RENDER; |
| param->cap_id = index; |
| param->rend_id = index; |
| } else if (di->info.dir & PJMEDIA_DIR_CAPTURE) { |
| param->dir = PJMEDIA_DIR_CAPTURE; |
| param->cap_id = index; |
| param->rend_id = PJMEDIA_VID_INVALID_DEV; |
| } else if (di->info.dir & PJMEDIA_DIR_RENDER) { |
| param->dir = PJMEDIA_DIR_RENDER; |
| param->rend_id = index; |
| param->cap_id = PJMEDIA_VID_INVALID_DEV; |
| } else { |
| return PJMEDIA_EVID_INVDEV; |
| } |
| |
| /* Set the device capabilities here */ |
| param->flags = PJMEDIA_VID_DEV_CAP_FORMAT; |
| param->fmt.type = PJMEDIA_TYPE_VIDEO; |
| param->clock_rate = DEFAULT_CLOCK_RATE; |
| param->frame_rate.num = DEFAULT_FPS; |
| param->frame_rate.denum = 1; |
| pjmedia_format_init_video(¶m->fmt, sdl_fmts[0].fmt_id, |
| DEFAULT_WIDTH, DEFAULT_HEIGHT, |
| DEFAULT_FPS, 1); |
| |
| 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 int create_sdl_thread(void * data) |
| { |
| struct sdl_stream *strm = (struct sdl_stream*)data; |
| sdl_fmt_info *sdl_info = get_sdl_format_info(strm->param.fmt.id); |
| const pjmedia_video_format_info *vfi; |
| pjmedia_video_format_detail *vfd; |
| |
| #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 |
| NSAutoreleasePool *apool = [[NSAutoreleasePool alloc] init]; |
| #endif |
| |
| vfi = pjmedia_get_video_format_info(pjmedia_video_format_mgr_instance(), |
| strm->param.fmt.id); |
| if (!vfi || !sdl_info) { |
| strm->status = PJMEDIA_EVID_BADFORMAT; |
| goto on_return; |
| } |
| |
| strm->vafp.size = strm->param.fmt.det.vid.size; |
| strm->vafp.buffer = NULL; |
| if (vfi->apply_fmt(vfi, &strm->vafp) != PJ_SUCCESS) { |
| strm->status = PJMEDIA_EVID_BADFORMAT; |
| goto on_return; |
| } |
| |
| /* Initialize the SDL library */ |
| if (SDL_Init(SDL_INIT_VIDEO)) { |
| PJ_LOG(4, (THIS_FILE, "Cannot initialize SDL")); |
| strm->status = PJMEDIA_EVID_INIT; |
| goto on_return; |
| } |
| |
| vfd = pjmedia_format_get_video_format_detail(&strm->param.fmt, PJ_TRUE); |
| strm->rect.x = strm->rect.y = 0; |
| strm->rect.w = (Uint16)vfd->size.w; |
| strm->rect.h = (Uint16)vfd->size.h; |
| |
| /* Initialize the display, requesting a software surface */ |
| strm->screen = SDL_SetVideoMode(strm->rect.w, strm->rect.h, |
| 0, SDL_RESIZABLE | SDL_SWSURFACE); |
| if (strm->screen == NULL) { |
| strm->status = PJMEDIA_EVID_SYSERR; |
| goto on_return; |
| } |
| SDL_WM_SetCaption("pjmedia-SDL video", NULL); |
| |
| 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) { |
| strm->status = PJMEDIA_EVID_SYSERR; |
| goto on_return; |
| } |
| } 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) { |
| strm->status = PJMEDIA_EVID_SYSERR; |
| goto on_return; |
| } |
| } |
| |
| while(!strm->is_quitting) { |
| SDL_Event sevent; |
| pjmedia_vid_event pevent; |
| |
| while (SDL_WaitEvent(&sevent)) { |
| pj_bzero(&pevent, sizeof(pevent)); |
| |
| switch(sevent.type) { |
| case SDL_USEREVENT: |
| goto on_return; |
| case SDL_MOUSEBUTTONDOWN: |
| pevent.event_type = PJMEDIA_EVENT_MOUSEBUTTONDOWN; |
| if (strm->vid_cb.on_event_cb) |
| if ((*strm->vid_cb.on_event_cb)(&strm->base, |
| strm->user_data, |
| &pevent) != PJ_SUCCESS) |
| { |
| /* Application wants us to ignore this event */ |
| break; |
| } |
| if (strm->is_running) |
| pjmedia_vid_stream_stop(&strm->base); |
| else |
| pjmedia_vid_stream_start(&strm->base); |
| break; |
| case SDL_VIDEORESIZE: |
| pevent.event_type = PJMEDIA_EVENT_WINDOW_RESIZE; |
| if (strm->vid_cb.on_event_cb) |
| if ((*strm->vid_cb.on_event_cb)(&strm->base, |
| strm->user_data, |
| &pevent) != PJ_SUCCESS) |
| { |
| /* Application wants us to ignore this event */ |
| break; |
| } |
| /* TODO: move this to OUTPUT_RESIZE cap |
| strm->screen = SDL_SetVideoMode(sevent.resize.w, |
| sevent.resize.h, |
| 0, SDL_RESIZABLE | |
| SDL_SWSURFACE); |
| */ |
| break; |
| case SDL_QUIT: |
| pevent.event_type = PJMEDIA_EVENT_WINDOW_CLOSE; |
| /** |
| * To process PJMEDIA_EVENT_WINDOW_CLOSE event, |
| * application should do this in the on_event_cb callback: |
| * 1. stop further calls to #pjmedia_vid_stream_put_frame() |
| * 2. return PJ_SUCCESS |
| * Upon returning from the callback, SDL will destroy its |
| * own stream. |
| * |
| * Returning non-PJ_SUCCESS will cause SDL to ignore |
| * the event |
| */ |
| if (strm->vid_cb.on_event_cb) { |
| strm->is_quitting = PJ_TRUE; |
| if ((*strm->vid_cb.on_event_cb)(&strm->base, |
| strm->user_data, |
| &pevent) != PJ_SUCCESS) |
| { |
| /* Application wants us to ignore this event */ |
| strm->is_quitting = PJ_FALSE; |
| break; |
| } |
| |
| /* Destroy the stream */ |
| sdl_stream_destroy(&strm->base); |
| goto on_return; |
| } |
| |
| /** |
| * Default event-handler when there is no user-specified |
| * callback: close the renderer window. We cannot destroy |
| * the stream here since there is no callback to notify |
| * the application. |
| */ |
| sdl_stream_stop(&strm->base); |
| SDL_Quit(); |
| strm->screen = NULL; |
| goto on_return; |
| default: |
| break; |
| } |
| } |
| |
| } |
| |
| on_return: |
| #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 |
| [apool release]; |
| #endif |
| |
| return strm->status; |
| } |
| |
| /* API: create stream */ |
| static pj_status_t sdl_factory_create_stream(pjmedia_vid_dev_factory *f, |
| const pjmedia_vid_param *param, |
| const pjmedia_vid_cb *cb, |
| void *user_data, |
| pjmedia_vid_stream **p_vid_strm) |
| { |
| struct sdl_factory *sf = (struct sdl_factory*)f; |
| pj_pool_t *pool; |
| struct sdl_stream *strm; |
| pj_status_t status; |
| |
| /* 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; |
| pj_memcpy(&strm->vid_cb, cb, sizeof(*cb)); |
| strm->user_data = user_data; |
| |
| /* Create capture stream here */ |
| if (param->dir & PJMEDIA_DIR_CAPTURE) { |
| } |
| |
| /* Create render stream here */ |
| if (param->dir & PJMEDIA_DIR_RENDER) { |
| strm->status = PJ_SUCCESS; |
| status = pj_thread_create(pool, "sdl_thread", create_sdl_thread, |
| strm, 0, 0, &strm->sdl_thread); |
| if (status != PJ_SUCCESS) { |
| goto on_error; |
| } |
| while (strm->status == PJ_SUCCESS && !strm->surf && !strm->overlay) |
| pj_thread_sleep(10); |
| if ((status = strm->status) != PJ_SUCCESS) { |
| goto on_error; |
| } |
| |
| pjmedia_format_copy(&strm->conv_param.src, ¶m->fmt); |
| pjmedia_format_copy(&strm->conv_param.dst, ¶m->fmt); |
| |
| status = pjmedia_converter_create(NULL, pool, &strm->conv_param, |
| &strm->conv); |
| } |
| |
| /* Apply the remaining settings */ |
| if (param->flags & PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW) { |
| sdl_stream_set_cap(&strm->base, |
| PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW, |
| ¶m->window); |
| } |
| |
| /* 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_stream *s, |
| pjmedia_vid_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->fmt.info_size) == PJ_SUCCESS) |
| { |
| pi->flags |= PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW; |
| } |
| */ |
| return PJ_SUCCESS; |
| } |
| |
| /* API: get capability */ |
| static pj_status_t sdl_stream_get_cap(pjmedia_vid_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 (cap==PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW) |
| { |
| return PJ_SUCCESS; |
| } else { |
| return PJMEDIA_EVID_INVCAP; |
| } |
| } |
| |
| /* API: set capability */ |
| static pj_status_t sdl_stream_set_cap(pjmedia_vid_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 (cap==PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW) |
| { |
| return PJ_SUCCESS; |
| } |
| |
| return PJMEDIA_EVID_INVCAP; |
| } |
| |
| /* API: Put frame from stream */ |
| static pj_status_t sdl_stream_put_frame(pjmedia_vid_stream *strm, |
| const pjmedia_frame *frame) |
| { |
| struct sdl_stream *stream = (struct sdl_stream*)strm; |
| pj_status_t status = PJ_SUCCESS; |
| #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 |
| NSAutoreleasePool *apool = [[NSAutoreleasePool alloc] init]; |
| #endif |
| |
| if (!stream->is_running) { |
| stream->render_exited = PJ_TRUE; |
| goto on_return; |
| } |
| |
| if (stream->surf) { |
| if (SDL_MUSTLOCK(stream->surf)) { |
| if (SDL_LockSurface(stream->surf) < 0) { |
| PJ_LOG(3, (THIS_FILE, "Unable to lock SDL surface")); |
| status = PJMEDIA_EVID_NOTREADY; |
| goto on_return; |
| } |
| } |
| |
| pj_memcpy(stream->surf->pixels, frame->buf, frame->size); |
| |
| if (SDL_MUSTLOCK(stream->surf)) { |
| SDL_UnlockSurface(stream->surf); |
| } |
| SDL_BlitSurface(stream->surf, NULL, stream->screen, NULL); |
| SDL_UpdateRect(stream->screen, 0, 0, 0, 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")); |
| status = PJMEDIA_EVID_NOTREADY; |
| goto on_return; |
| } |
| |
| 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->rect); |
| } |
| |
| on_return: |
| #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0 |
| [apool release]; |
| #endif |
| |
| return status; |
| } |
| |
| /* API: Start stream. */ |
| static pj_status_t sdl_stream_start(pjmedia_vid_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_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<100; ++i) |
| pj_thread_sleep(10); |
| |
| return PJ_SUCCESS; |
| } |
| |
| |
| /* API: Destroy stream. */ |
| static pj_status_t sdl_stream_destroy(pjmedia_vid_stream *strm) |
| { |
| struct sdl_stream *stream = (struct sdl_stream*)strm; |
| SDL_Event sevent; |
| |
| PJ_ASSERT_RETURN(stream != NULL, PJ_EINVAL); |
| |
| if (!stream->is_quitting) { |
| sevent.type = SDL_USEREVENT; |
| SDL_PushEvent(&sevent); |
| pj_thread_join(stream->sdl_thread); |
| } |
| |
| sdl_stream_stop(strm); |
| |
| if (stream->surf) { |
| SDL_FreeSurface(stream->surf); |
| stream->surf = NULL; |
| } |
| |
| if (stream->overlay) { |
| SDL_FreeYUVOverlay(stream->overlay); |
| stream->overlay = NULL; |
| } |
| |
| SDL_Quit(); |
| stream->screen = NULL; |
| |
| pj_pool_release(stream->pool); |
| |
| return PJ_SUCCESS; |
| } |
| |
| #ifdef _MSC_VER |
| # pragma comment( lib, "sdl.lib") |
| #endif |
| |
| #endif /* PJMEDIA_VIDEO_DEV_HAS_SDL */ |