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Implemented OSX device listing

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This commit is contained in:
cnhenry 2015-08-20 06:39:47 -05:00
parent e91aaf6c73
commit c8a9ac21f3
5 changed files with 341 additions and 6 deletions
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4
Makefile
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@ -59,6 +59,10 @@ $(BUILD_DIR)/toxic: $(OBJ)
@echo " LD $(@:$(BUILD_DIR)/%=%)"
@$(CC) $(CFLAGS) -o $(BUILD_DIR)/toxic $(OBJ) $(LDFLAGS)
$(BUILD_DIR)/osx_video.o: $(SRC_DIR)/$(OSX_VIDEO)
@echo " CC $(@:$(BUILD_DIR)/)osx_video.o"
@$(CC) $(CFLAGS) -o $(BUILD_DIR)/osx_video.o -c $(SRC_DIR)/$(OSX_VIDEO)
$(BUILD_DIR)/%.o: $(SRC_DIR)/%.c
@if [ ! -e $(BUILD_DIR) ]; then \
mkdir -p $(BUILD_DIR) ;\

8
cfg/systems/Darwin.mk
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@ -8,3 +8,11 @@ LIBS := $(filter-out ncursesw, $(LIBS))
# OS X ships a usable, recent version of ncurses, but calls it ncurses not ncursesw.
LDFLAGS += -lncurses -lalut -ltoxav -ltoxcore -ltoxdns -lresolv -lconfig -ltoxencryptsave -g
CFLAGS += -I/usr/local/opt/freealut/include/AL -I/usr/local/opt/glib/include/glib-2.0 -g
OSX_LIBRARIES = -lobjc -lresolv
OSX_FRAMEWORKS = -framework Foundation -framework CoreFoundation -framework AVFoundation \
-framework QuartzCore
OSX_VIDEO = osx_video.m
LDFLAGS += $(OSX_LIBRARIES) $(OSX_FRAMEWORKS)
OBJ += osx_video.o

50
src/osx_video.h Normal file
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@ -0,0 +1,50 @@
/* osx_video.h
*
*
* Copyright (C) 2014 Toxic All Rights Reserved.
*
* This file is part of Toxic.
*
* Toxic 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 3 of the License, or
* (at your option) any later version.
*
* Toxic 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 Toxic. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef OSX_VIDEO_H
#define OSX_VIDEO_H
#include <netinet/in.h>
void bgrtoyuv420(uint8_t *plane_y, uint8_t *plane_u, uint8_t *plane_v, uint8_t *rgb, uint16_t width, uint16_t height);
#ifdef __OBJC__
#import <Foundation/Foundation.h>
#import <AVFoundation/AVFoundation.h>
@interface OSXVideo : NSObject <AVCaptureVideoDataOutputSampleBufferDelegate>
- (instancetype)initWithDeviceNames:(char **)device_names AmtDevices:(int *)size;
@end
#endif /* __OBJC__ */
int osx_video_init(char **device_names, int *size);
void osx_video_release();
/* Start device */
int osx_video_open_device(uint32_t device_idx, uint16_t *width, uint16_t *height);
/* Stop device */
void osx_video_close_device(uint32_t device_idx);
/* Read data from device */
void osx_video_read_device(uint8_t *y, uint8_t *u, uint8_t *v, uint16_t *width, uint16_t *height);
#endif /* OSX_VIDEO_H */

257
src/osx_video.m Normal file
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@ -0,0 +1,257 @@
/* osx_video.m
*
*
* Copyright (C) 2014 Toxic All Rights Reserved.
*
* This file is part of Toxic.
*
* Toxic 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 3 of the License, or
* (at your option) any later version.
*
* Toxic 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 Toxic. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef __OBJC__
#include "osx_video.h"
#import <Foundation/Foundation.h>
#import <AVFoundation/AVFoundation.h>
#include "line_info.h"
#include "settings.h"
#include <errno.h>
#include <stdbool.h>
#include <string.h>
#include <pthread.h>
#include <unistd.h>
#include <stdlib.h>
#include <assert.h>
/*
* Helper video format functions
*/
static uint8_t rgb_to_y(int r, int g, int b)
{
int y = ((9798 * r + 19235 * g + 3736 * b) >> 15);
return y>255? 255 : y<0 ? 0 : y;
}
static uint8_t rgb_to_u(int r, int g, int b)
{
int u = ((-5538 * r + -10846 * g + 16351 * b) >> 15) + 128;
return u>255? 255 : u<0 ? 0 : u;
}
static uint8_t rgb_to_v(int r, int g, int b)
{
int v = ((16351 * r + -13697 * g + -2664 * b) >> 15) + 128;
return v>255? 255 : v<0 ? 0 : v;
}
void bgrtoyuv420(uint8_t *plane_y, uint8_t *plane_u, uint8_t *plane_v, uint8_t *rgb, uint16_t width, uint16_t height)
{
uint16_t x, y;
uint8_t *p;
uint8_t r, g, b;
for(y = 0; y != height; y += 2) {
p = rgb;
for(x = 0; x != width; x++) {
b = *rgb++;
g = *rgb++;
r = *rgb++;
*plane_y++ = rgb_to_y(r, g, b);
}
for(x = 0; x != width / 2; x++) {
b = *rgb++;
g = *rgb++;
r = *rgb++;
*plane_y++ = rgb_to_y(r, g, b);
b = *rgb++;
g = *rgb++;
r = *rgb++;
*plane_y++ = rgb_to_y(r, g, b);
b = ((int)b + (int)*(rgb - 6) + (int)*p + (int)*(p + 3) + 2) / 4; p++;
g = ((int)g + (int)*(rgb - 5) + (int)*p + (int)*(p + 3) + 2) / 4; p++;
r = ((int)r + (int)*(rgb - 4) + (int)*p + (int)*(p + 3) + 2) / 4; p++;
*plane_u++ = rgb_to_u(r, g, b);
*plane_v++ = rgb_to_v(r, g, b);
p += 3;
}
}
}
/*
* End of helper video format functions
*/
/*
* Implementation for OSXVideo
*/
@implementation OSXVideo {
dispatch_queue_t _processingQueue;
AVCaptureSession *_session;
AVCaptureVideoDataOutput *_linkerVideo;
CVImageBufferRef _currentFrame;
pthread_mutex_t _frameLock;
}
- (instancetype)initWithDeviceNames: (char **)device_names AmtDevices: (int *)size {
_session = [[AVCaptureSession alloc] init];
NSArray *devices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo];
int i = 0;
for (AVCaptureDevice *device in devices) {
char *video_input_name;
NSString *localizedName = [device localizedName];
video_input_name = (char*)malloc(strlen([localizedName cStringUsingEncoding:NSUTF8StringEncoding]) + 1);
strcpy(video_input_name, (char*)[localizedName cStringUsingEncoding:NSUTF8StringEncoding]);
device_names[i] = video_input_name;
++i;
}
if ( i <= 0 )
return nil;
*size = i;
return self;
}
- (void)release {
[_session release];
[super release];
}
- (int)openVideoDeviceIndex: (uint32_t)device_idx Width: (uint16_t *)width Height: (uint16_t *)height {
pthread_mutex_init(&_frameLock, NULL);
_processingQueue = dispatch_queue_create("Toxic processing queue", DISPATCH_QUEUE_SERIAL);
NSArray *devices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo];
int i = 0;
for (AVCaptureDevice *device in devices) {
if ( i == device_idx ) {
NSError *error = NULL;
AVCaptureInput *input = [[AVCaptureDeviceInput alloc] initWithDevice:device error:&error];
if ( error != NULL )
return -1;
/* Obtain device resolution */
/*AVCaptureInputPort *port = [input.ports objectAtIndex:0];
CMFormatDescriptionRef format_description = port.formatDescription;
if ( format_description ) {
CMVideoDimensions dimensions = CMVideoFormatDescriptionGetDimensions(format_description);
*width = dimensions.width;
*height = dimensions.height;
} else {
*width = 0;
*height = 0;
}*/
[_session beginConfiguration];
[_session addInput:input];
//session.sessionPreset = AVCaptureSessionPreset640x480;
[_session commitConfiguration];
[input release];
break;
} else {
++i;
}
}
_linkerVideo = [[AVCaptureVideoDataOutput alloc] init];
[_linkerVideo setSampleBufferDelegate:self queue:_processingQueue];
// TODO possibly get a better pixel format
[_linkerVideo setVideoSettings:@{(id)kCVPixelBufferPixelFormatTypeKey: @(kCVPixelFormatType_32BGRA)}];
[_session addOutput:_linkerVideo];
[_session startRunning];
return 0;
}
- (void)closeVideoDeviceIndex: (uint32_t)device_idx {
[_session stopRunning];
[_linkerVideo release];
}
- (void)getVideoFrameY: (uint8_t *)y U: (uint8_t *)u V: (uint8_t *)v Width: (uint16_t *)width Height: (uint16_t *)height {
/*CVImageBufferRef currentFrame = NULL;
CFRetain(currentFrame);
CFTypeID imageType = CFGetTypeID(currentFrame);
if (imageType == CVPixelBufferGetTypeID()) {
// TODO maybe handle other formats
bgrxtoyuv420(y, u, v, CVPixelBufferGetBaseAddress(currentFrame), width, height);
} else if (imageType == CVOpenGLBufferGetTypeID()) {
// OpenGL pbuffer
} else if (imageType == CVOpenGLTextureGetTypeID()) {
// OpenGL Texture (Do we need to handle these?)
}
CVPixelBufferRelease(currentFrame);*/
}
@end
/*
* End of implementation for OSXVideo
*/
/*
* C-interface for OSXVideo
*/
static OSXVideo* _OSXVideo = nil;
int osx_video_init(char **device_names, int *size)
{
_OSXVideo = [[OSXVideo alloc] initWithDeviceNames: device_names AmtDevices: size];
if ( _OSXVideo == nil )
return -1;
return 0;
}
void osx_video_release()
{
[_OSXVideo release];
}
int osx_video_open_device(uint32_t device_idx, uint16_t *width, uint16_t *height)
{
return [_OSXVideo openVideoDeviceIndex: device_idx Width: width Height: height];
}
void osx_video_close_device(uint32_t device_idx)
{
[_OSXVideo closeVideoDeviceIndex: device_idx];
}
void osx_video_read_device(uint8_t *y, uint8_t *u, uint8_t *v, uint16_t *width, uint16_t *height)
{
[_OSXVideo getVideoFrameY: y U: u V: v Width: width Height: height];
}
/*
* End of C-interface for OSXVideo
*/
#endif /* __OBJC__ */

28
src/video_device.c
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@ -36,7 +36,9 @@
#include <sys/mman.h>
#include <fcntl.h>
#include <linux/videodev2.h>
#endif /* __linux__ */
#else /* __OSX__ */
#import "osx_video.h"
#endif
#include "line_info.h"
#include "settings.h"
@ -60,16 +62,17 @@ struct VideoBuffer {
};
typedef struct VideoDevice {
int fd; /* File descriptor of video device selected/opened */
VideoDataHandleCallback cb; /* Use this to handle data from input device usually */
void* cb_data; /* Data to be passed to callback */
int32_t friend_number; /* ToxAV friend number */
#ifdef __linux__
int fd; /* File descriptor of video device selected/opened */
struct v4l2_format fmt;
struct VideoBuffer *buffers;
uint32_t n_buffers;
#else /* __OSX__ */
#endif
uint32_t ref_count;
@ -205,8 +208,10 @@ VideoDeviceError init_video_devices()
close(fd);
}
}
#else /* __OSX__ */
/* TODO: Add OSX implementation for listing input video devices */
if( osx_video_init(video_devices_names[vdt_input], &size[vdt_input]) != 0 )
return vde_InternalError;
#endif
@ -243,14 +248,23 @@ VideoDeviceError terminate_video_devices()
if ( pthread_mutex_destroy(&video_mutex) != 0 )
return (VideoDeviceError) vde_InternalError;
#ifdef __OSX__
void osx_video_release();
#endif /* __OSX__ */
return (VideoDeviceError) vde_None;
}
VideoDeviceError register_video_device_callback(int32_t friend_number, uint32_t device_idx,
VideoDataHandleCallback callback, void* data)
{
#ifdef __linux__
if ( size[vdt_input] <= device_idx || !video_devices_running[vdt_input][device_idx] || !video_devices_running[vdt_input][device_idx]->fd )
return vde_InvalidSelection;
#else /* __OSX__ */
if ( size[vdt_input] <= device_idx || !video_devices_running[vdt_input][device_idx] )
return vde_InvalidSelection;
#endif
lock;
video_devices_running[vdt_input][device_idx]->cb = callback;
@ -435,8 +449,7 @@ VideoDeviceError open_video_device(VideoDeviceType type, int32_t selection, uint
}
#else /* __OSX__ */
/*TODO: Add OSX implementation of opening video devices */
osx_video_open_device(*device_idx, device->video_width, device->video_height);
#endif
/* Create X11 window associated to device */
@ -707,14 +720,17 @@ VideoDeviceError close_video_device(VideoDeviceType type, uint32_t device_idx)
if ( -1 == munmap(device->buffers[i].start, device->buffers[i].length) ) {
}
}
close(device->fd);
#else /* __OSX__ */
osx_video_close_device(device_idx);
#endif
close(device->fd);
XDestroyWindow(device->x_display, device->x_window);
XFlush(device->x_display);
XCloseDisplay(device->x_display);
pthread_mutex_destroy(device->mutex);
#ifdef __linux__
free(device->buffers);
#else /* __OSX__ */