diff options
Diffstat (limited to 'pjmedia/src/pjmedia-videodev/qt_dev.m')
| -rw-r--r-- | pjmedia/src/pjmedia-videodev/qt_dev.m | 636 |
1 files changed, 636 insertions, 0 deletions
diff --git a/pjmedia/src/pjmedia-videodev/qt_dev.m b/pjmedia/src/pjmedia-videodev/qt_dev.m new file mode 100644 index 00000000..80546a5c --- /dev/null +++ b/pjmedia/src/pjmedia-videodev/qt_dev.m @@ -0,0 +1,636 @@ +/* $Id$ */ +/* + * Copyright (C) 2008-2011 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-videodev/videodev_imp.h> +#include <pj/assert.h> +#include <pj/log.h> +#include <pj/os.h> + +#if PJMEDIA_VIDEO_DEV_HAS_QT + +#include <Foundation/NSAutoreleasePool.h> +#include <QTKit/QTKit.h> + +#define THIS_FILE "qt_dev.c" +#define DEFAULT_CLOCK_RATE 9000 +#define DEFAULT_WIDTH 640 +#define DEFAULT_HEIGHT 480 +#define DEFAULT_FPS 15 + +#define kCVPixelFormatType_422YpCbCr8_yuvs 'yuvs' + +typedef struct qt_fmt_info +{ + pjmedia_format_id pjmedia_format; + unsigned qt_format; +} qt_fmt_info; + +static qt_fmt_info qt_fmts[] = +{ + {PJMEDIA_FORMAT_YUY2, kCVPixelFormatType_422YpCbCr8_yuvs}, + {PJMEDIA_FORMAT_UYVY, kCVPixelFormatType_422YpCbCr8}, +}; + +/* qt device info */ +struct qt_dev_info +{ + pjmedia_vid_dev_info info; + char dev_id[192]; +}; + +/* qt factory */ +struct qt_factory +{ + pjmedia_vid_dev_factory base; + pj_pool_t *pool; + pj_pool_t *dev_pool; + pj_pool_factory *pf; + + unsigned dev_count; + struct qt_dev_info *dev_info; +}; + +@interface VOutDelegate: NSObject +{ +@public + struct qt_stream *stream; +} +@end + +/* Video stream. */ +struct qt_stream +{ + pjmedia_vid_dev_stream base; /**< Base stream */ + pjmedia_vid_dev_param param; /**< Settings */ + pj_pool_t *pool; /**< Memory pool. */ + + pj_timestamp cap_frame_ts; /**< Captured frame tstamp */ + unsigned cap_ts_inc; /**< Increment */ + + pjmedia_vid_dev_cb vid_cb; /**< Stream callback. */ + void *user_data; /**< Application data. */ + + pj_bool_t cap_thread_exited; + pj_bool_t cap_thread_initialized; + pj_thread_desc cap_thread_desc; + pj_thread_t *cap_thread; + + NSAutoreleasePool *apool; + QTCaptureSession *cap_session; + QTCaptureDeviceInput *dev_input; + QTCaptureDecompressedVideoOutput *video_output; + VOutDelegate *vout_delegate; +}; + + +/* Prototypes */ +static pj_status_t qt_factory_init(pjmedia_vid_dev_factory *f); +static pj_status_t qt_factory_destroy(pjmedia_vid_dev_factory *f); +static pj_status_t qt_factory_refresh(pjmedia_vid_dev_factory *f); +static unsigned qt_factory_get_dev_count(pjmedia_vid_dev_factory *f); +static pj_status_t qt_factory_get_dev_info(pjmedia_vid_dev_factory *f, + unsigned index, + pjmedia_vid_dev_info *info); +static pj_status_t qt_factory_default_param(pj_pool_t *pool, + pjmedia_vid_dev_factory *f, + unsigned index, + pjmedia_vid_dev_param *param); +static pj_status_t qt_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 qt_stream_get_param(pjmedia_vid_dev_stream *strm, + pjmedia_vid_dev_param *param); +static pj_status_t qt_stream_get_cap(pjmedia_vid_dev_stream *strm, + pjmedia_vid_dev_cap cap, + void *value); +static pj_status_t qt_stream_set_cap(pjmedia_vid_dev_stream *strm, + pjmedia_vid_dev_cap cap, + const void *value); +static pj_status_t qt_stream_start(pjmedia_vid_dev_stream *strm); +static pj_status_t qt_stream_stop(pjmedia_vid_dev_stream *strm); +static pj_status_t qt_stream_destroy(pjmedia_vid_dev_stream *strm); + +/* Operations */ +static pjmedia_vid_dev_factory_op factory_op = +{ + &qt_factory_init, + &qt_factory_destroy, + &qt_factory_get_dev_count, + &qt_factory_get_dev_info, + &qt_factory_default_param, + &qt_factory_create_stream, + &qt_factory_refresh +}; + +static pjmedia_vid_dev_stream_op stream_op = +{ + &qt_stream_get_param, + &qt_stream_get_cap, + &qt_stream_set_cap, + &qt_stream_start, + NULL, + NULL, + &qt_stream_stop, + &qt_stream_destroy +}; + + +/**************************************************************************** + * Factory operations + */ +/* + * Init qt_ video driver. + */ +pjmedia_vid_dev_factory* pjmedia_qt_factory(pj_pool_factory *pf) +{ + struct qt_factory *f; + pj_pool_t *pool; + + pool = pj_pool_create(pf, "qt video", 4000, 4000, NULL); + f = PJ_POOL_ZALLOC_T(pool, struct qt_factory); + f->pf = pf; + f->pool = pool; + f->base.op = &factory_op; + + return &f->base; +} + + +/* API: init factory */ +static pj_status_t qt_factory_init(pjmedia_vid_dev_factory *f) +{ + return qt_factory_refresh(f); +} + +/* API: destroy factory */ +static pj_status_t qt_factory_destroy(pjmedia_vid_dev_factory *f) +{ + struct qt_factory *qf = (struct qt_factory*)f; + pj_pool_t *pool = qf->pool; + + if (qf->dev_pool) + pj_pool_release(qf->dev_pool); + qf->pool = NULL; + if (pool) + pj_pool_release(pool); + + return PJ_SUCCESS; +} + +/* API: refresh the list of devices */ +static pj_status_t qt_factory_refresh(pjmedia_vid_dev_factory *f) +{ + struct qt_factory *qf = (struct qt_factory*)f; + struct qt_dev_info *qdi; + unsigned i, dev_count = 0; + NSAutoreleasePool *apool = [[NSAutoreleasePool alloc]init]; + NSArray *dev_array; + + if (qf->dev_pool) { + pj_pool_release(qf->dev_pool); + qf->dev_pool = NULL; + } + + dev_array = [QTCaptureDevice inputDevices]; + for (i = 0; i < [dev_array count]; i++) { + QTCaptureDevice *dev = [dev_array objectAtIndex:i]; + if ([dev hasMediaType:QTMediaTypeVideo] || + [dev hasMediaType:QTMediaTypeMuxed]) + { + dev_count++; + } + } + + /* Initialize input and output devices here */ + qf->dev_count = 0; + qf->dev_pool = pj_pool_create(qf->pf, "qt video", 500, 500, NULL); + + qf->dev_info = (struct qt_dev_info*) + pj_pool_calloc(qf->dev_pool, dev_count, + sizeof(struct qt_dev_info)); + for (i = 0; i < [dev_array count]; i++) { + QTCaptureDevice *dev = [dev_array objectAtIndex:i]; + if ([dev hasMediaType:QTMediaTypeVideo] || + [dev hasMediaType:QTMediaTypeMuxed]) + { + unsigned k; + + qdi = &qf->dev_info[qf->dev_count++]; + pj_bzero(qdi, sizeof(*qdi)); + [[dev localizedDisplayName] getCString:qdi->info.name + maxLength:sizeof(qdi->info.name) + encoding: + [NSString defaultCStringEncoding]]; + [[dev uniqueID] getCString:qdi->dev_id + maxLength:sizeof(qdi->dev_id) + encoding:[NSString defaultCStringEncoding]]; + strcpy(qdi->info.driver, "QT"); + qdi->info.dir = PJMEDIA_DIR_CAPTURE; + qdi->info.has_callback = PJ_TRUE; + + qdi->info.fmt_cnt = 0; + qdi->info.caps = PJMEDIA_VID_DEV_CAP_FORMAT; + for (k = 0; k < [[dev formatDescriptions] count]; k++) { + unsigned l; + QTFormatDescription *desc = [[dev formatDescriptions] + objectAtIndex:k]; + for (l = 0; l < PJ_ARRAY_SIZE(qt_fmts); l++) { + if ([desc formatType] == qt_fmts[l].qt_format) { + pjmedia_format *fmt = + &qdi->info.fmt[qdi->info.fmt_cnt++]; + pjmedia_format_init_video(fmt, + qt_fmts[l].pjmedia_format, + DEFAULT_WIDTH, + DEFAULT_HEIGHT, + DEFAULT_FPS, 1); + break; + } + } + } + + PJ_LOG(4, (THIS_FILE, " dev_id %d: %s", i, qdi->info.name)); + } + } + + [apool release]; + + PJ_LOG(4, (THIS_FILE, "qt video has %d devices", + qf->dev_count)); + + return PJ_SUCCESS; +} + +/* API: get number of devices */ +static unsigned qt_factory_get_dev_count(pjmedia_vid_dev_factory *f) +{ + struct qt_factory *qf = (struct qt_factory*)f; + return qf->dev_count; +} + +/* API: get device info */ +static pj_status_t qt_factory_get_dev_info(pjmedia_vid_dev_factory *f, + unsigned index, + pjmedia_vid_dev_info *info) +{ + struct qt_factory *qf = (struct qt_factory*)f; + + PJ_ASSERT_RETURN(index < qf->dev_count, PJMEDIA_EVID_INVDEV); + + pj_memcpy(info, &qf->dev_info[index].info, sizeof(*info)); + + return PJ_SUCCESS; +} + +/* API: create default device parameter */ +static pj_status_t qt_factory_default_param(pj_pool_t *pool, + pjmedia_vid_dev_factory *f, + unsigned index, + pjmedia_vid_dev_param *param) +{ + struct qt_factory *qf = (struct qt_factory*)f; + struct qt_dev_info *di = &qf->dev_info[index]; + + PJ_ASSERT_RETURN(index < qf->dev_count, PJMEDIA_EVID_INVDEV); + + PJ_UNUSED_ARG(pool); + + pj_bzero(param, sizeof(*param)); + param->dir = PJMEDIA_DIR_CAPTURE; + param->cap_id = index; + param->rend_id = PJMEDIA_VID_INVALID_DEV; + param->flags = PJMEDIA_VID_DEV_CAP_FORMAT; + param->clock_rate = DEFAULT_CLOCK_RATE; + pj_memcpy(¶m->fmt, &di->info.fmt[0], sizeof(param->fmt)); + + return PJ_SUCCESS; +} + +@implementation VOutDelegate +- (void)captureOutput:(QTCaptureOutput *)captureOutput + didOutputVideoFrame:(CVImageBufferRef)videoFrame + withSampleBuffer:(QTSampleBuffer *)sampleBuffer + fromConnection:(QTCaptureConnection *)connection +{ + unsigned size = [sampleBuffer lengthForAllSamples]; + pjmedia_frame frame; + + if (stream->cap_thread_initialized == 0 || !pj_thread_is_registered()) + { + pj_thread_register("qt_cap", stream->cap_thread_desc, + &stream->cap_thread); + stream->cap_thread_initialized = 1; + PJ_LOG(5,(THIS_FILE, "Capture thread started")); + } + + if (!videoFrame) + return; + + frame.type = PJMEDIA_TYPE_VIDEO; + frame.buf = [sampleBuffer bytesForAllSamples]; + frame.size = size; + frame.bit_info = 0; + frame.timestamp.u64 = stream->cap_frame_ts.u64; + + if (stream->vid_cb.capture_cb) + (*stream->vid_cb.capture_cb)(&stream->base, stream->user_data, + &frame); + + stream->cap_frame_ts.u64 += stream->cap_ts_inc; +} +@end + +static qt_fmt_info* get_qt_format_info(pjmedia_format_id id) +{ + unsigned i; + + for (i = 0; i < PJ_ARRAY_SIZE(qt_fmts); i++) { + if (qt_fmts[i].pjmedia_format == id) + return &qt_fmts[i]; + } + + return NULL; +} + +/* API: create stream */ +static pj_status_t qt_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 qt_factory *qf = (struct qt_factory*)f; + pj_pool_t *pool; + struct qt_stream *strm; + const pjmedia_video_format_info *vfi; + pj_status_t status = PJ_SUCCESS; + BOOL success = NO; + NSError *error; + + PJ_ASSERT_RETURN(f && param && p_vid_strm, PJ_EINVAL); + PJ_ASSERT_RETURN(param->fmt.type == PJMEDIA_TYPE_VIDEO && + param->fmt.detail_type == PJMEDIA_FORMAT_DETAIL_VIDEO && + param->dir == PJMEDIA_DIR_CAPTURE, + PJ_EINVAL); + + vfi = pjmedia_get_video_format_info(NULL, param->fmt.id); + if (!vfi) + return PJMEDIA_EVID_BADFORMAT; + + /* Create and Initialize stream descriptor */ + pool = pj_pool_create(qf->pf, "qt-dev", 4000, 4000, NULL); + PJ_ASSERT_RETURN(pool != NULL, PJ_ENOMEM); + + strm = PJ_POOL_ZALLOC_T(pool, struct qt_stream); + pj_memcpy(&strm->param, param, sizeof(*param)); + strm->pool = pool; + pj_memcpy(&strm->vid_cb, cb, sizeof(*cb)); + strm->user_data = user_data; + strm->apool = [[NSAutoreleasePool alloc]init]; + pjmedia_event_publisher_init(&strm->base.epub, PJMEDIA_SIG_VID_DEV_COLORBAR); + + /* Create capture stream here */ + if (param->dir & PJMEDIA_DIR_CAPTURE) { + const pjmedia_video_format_detail *vfd; + qt_fmt_info *qfi = get_qt_format_info(param->fmt.id); + + if (!qfi) { + status = PJMEDIA_EVID_BADFORMAT; + goto on_error; + } + + strm->cap_session = [[QTCaptureSession alloc] init]; + if (!strm->cap_session) { + status = PJ_ENOMEM; + goto on_error; + } + + /* Open video device */ + QTCaptureDevice *videoDevice = + [QTCaptureDevice deviceWithUniqueID: + [NSString stringWithCString: + qf->dev_info[param->cap_id].dev_id + encoding: + [NSString defaultCStringEncoding]]]; + if (!videoDevice || ![videoDevice open:&error]) { + status = PJMEDIA_EVID_SYSERR; + goto on_error; + } + + /* Add the video device to the session as a device input */ + strm->dev_input = [[QTCaptureDeviceInput alloc] + initWithDevice:videoDevice]; + success = [strm->cap_session addInput:strm->dev_input error:&error]; + if (!success) { + status = PJMEDIA_EVID_SYSERR; + goto on_error; + } + + strm->video_output = [[QTCaptureDecompressedVideoOutput alloc] init]; + success = [strm->cap_session addOutput:strm->video_output + error:&error]; + if (!success) { + status = PJMEDIA_EVID_SYSERR; + goto on_error; + } + + vfd = pjmedia_format_get_video_format_detail(&strm->param.fmt, + PJ_TRUE); + [strm->video_output setPixelBufferAttributes: + [NSDictionary dictionaryWithObjectsAndKeys: + [NSNumber numberWithInt: + qfi->qt_format], + kCVPixelBufferPixelFormatTypeKey, + [NSNumber numberWithInt: + vfd->size.w], + kCVPixelBufferWidthKey, + [NSNumber numberWithInt: + vfd->size.h], + kCVPixelBufferHeightKey, nil]]; + + pj_assert(vfd->fps.num); + strm->cap_ts_inc = PJMEDIA_SPF2(strm->param.clock_rate, &vfd->fps, 1); + + if ([strm->video_output + respondsToSelector:@selector(setMinimumVideoFrameInterval)]) + { + [strm->video_output setMinimumVideoFrameInterval: + (1.0f * vfd->fps.denum / + (double)vfd->fps.num)]; + } + + strm->vout_delegate = [[VOutDelegate alloc]init]; + strm->vout_delegate->stream = strm; + [strm->video_output setDelegate:strm->vout_delegate]; + } + + /* Apply the remaining settings */ + /* + if (param->flags & PJMEDIA_VID_DEV_CAP_INPUT_SCALE) { + qt_stream_set_cap(&strm->base, + PJMEDIA_VID_DEV_CAP_INPUT_SCALE, + ¶m->fmt); + } + */ + /* Done */ + strm->base.op = &stream_op; + *p_vid_strm = &strm->base; + + return PJ_SUCCESS; + +on_error: + qt_stream_destroy((pjmedia_vid_dev_stream *)strm); + + return status; +} + +/* API: Get stream info. */ +static pj_status_t qt_stream_get_param(pjmedia_vid_dev_stream *s, + pjmedia_vid_dev_param *pi) +{ + struct qt_stream *strm = (struct qt_stream*)s; + + PJ_ASSERT_RETURN(strm && pi, PJ_EINVAL); + + pj_memcpy(pi, &strm->param, sizeof(*pi)); + +/* if (qt_stream_get_cap(s, PJMEDIA_VID_DEV_CAP_INPUT_SCALE, + &pi->fmt.info_size) == PJ_SUCCESS) + { + pi->flags |= PJMEDIA_VID_DEV_CAP_INPUT_SCALE; + } +*/ + return PJ_SUCCESS; +} + +/* API: get capability */ +static pj_status_t qt_stream_get_cap(pjmedia_vid_dev_stream *s, + pjmedia_vid_dev_cap cap, + void *pval) +{ + struct qt_stream *strm = (struct qt_stream*)s; + + PJ_UNUSED_ARG(strm); + + PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); + + if (cap==PJMEDIA_VID_DEV_CAP_INPUT_SCALE) + { + return PJMEDIA_EVID_INVCAP; +// return PJ_SUCCESS; + } else { + return PJMEDIA_EVID_INVCAP; + } +} + +/* API: set capability */ +static pj_status_t qt_stream_set_cap(pjmedia_vid_dev_stream *s, + pjmedia_vid_dev_cap cap, + const void *pval) +{ + struct qt_stream *strm = (struct qt_stream*)s; + + PJ_UNUSED_ARG(strm); + + PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); + + if (cap==PJMEDIA_VID_DEV_CAP_INPUT_SCALE) + { + return PJ_SUCCESS; + } + + return PJMEDIA_EVID_INVCAP; +} + +/* API: Start stream. */ +static pj_status_t qt_stream_start(pjmedia_vid_dev_stream *strm) +{ + struct qt_stream *stream = (struct qt_stream*)strm; + + PJ_UNUSED_ARG(stream); + + PJ_LOG(4, (THIS_FILE, "Starting qt video stream")); + + if (stream->cap_session) { + [stream->cap_session startRunning]; + + if (![stream->cap_session isRunning]) + return PJ_EUNKNOWN; + + CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, false); + } + + return PJ_SUCCESS; +} + +/* API: Stop stream. */ +static pj_status_t qt_stream_stop(pjmedia_vid_dev_stream *strm) +{ + struct qt_stream *stream = (struct qt_stream*)strm; + + PJ_UNUSED_ARG(stream); + + PJ_LOG(4, (THIS_FILE, "Stopping qt video stream")); + + if (stream->cap_session && [stream->cap_session isRunning]) + [stream->cap_session stopRunning]; + + return PJ_SUCCESS; +} + + +/* API: Destroy stream. */ +static pj_status_t qt_stream_destroy(pjmedia_vid_dev_stream *strm) +{ + struct qt_stream *stream = (struct qt_stream*)strm; + + PJ_ASSERT_RETURN(stream != NULL, PJ_EINVAL); + + qt_stream_stop(strm); + + if (stream->dev_input && [[stream->dev_input device] isOpen]) + [[stream->dev_input device] close]; + + if (stream->cap_session) { + [stream->cap_session release]; + stream->cap_session = NULL; + } + if (stream->dev_input) { + [stream->dev_input release]; + stream->dev_input = NULL; + } + if (stream->vout_delegate) { + [stream->vout_delegate release]; + stream->vout_delegate = NULL; + } + if (stream->video_output) { + [stream->video_output release]; + stream->video_output = NULL; + } + +// [stream->apool release]; + pj_pool_release(stream->pool); + + return PJ_SUCCESS; +} + +#endif /* PJMEDIA_VIDEO_DEV_HAS_QT */ |