Fixed v4l2 capture crash, and refactored to prepare for new features

cfg/checks/audio.mk

@@ -0,0 +1,21 @@
+# Variables for audio call support
+AUDIO_LIBS = libtoxav openal
+AUDIO_CFLAGS = -DAUDIO
+ifneq (, $(findstring audio_device.o, $(OBJ)))
+    AUDIO_OBJ = audio_call.o
+else
+    AUDIO_OBJ = audio_call.o audio_device.o
+endif
+
+# Check if we can build audio support
+CHECK_AUDIO_LIBS = $(shell pkg-config --exists $(AUDIO_LIBS) || echo -n "error")
+ifneq ($(CHECK_AUDIO_LIBS), error)
+    LIBS += $(AUDIO_LIBS)
+    CFLAGS += $(AUDIO_CFLAGS)
+    OBJ += $(AUDIO_OBJ)
+else ifneq ($(MAKECMDGOALS), clean)
+    MISSING_AUDIO_LIBS = $(shell for lib in $(AUDIO_LIBS) ; do if ! pkg-config --exists $$lib ; then echo $$lib ; fi ; done)
+    $(warning WARNING -- Toxic will be compiled without audio support)
+    $(warning WARNING -- You need these libraries for audio support)
+    $(warning WARNING -- $(MISSING_AUDIO_LIBS))
+endif

cfg/checks/av.mk

@@ -1,43 +0,0 @@
-# Variables for audio call support
-AUDIO_LIBS = libtoxav openal
-AUDIO_CFLAGS = -DAUDIO
-ifneq (, $(findstring audio_device.o, $(OBJ)))
-    AUDIO_OBJ = audio_call.o
-else
-    AUDIO_OBJ = audio_call.o audio_device.o
-endif
-
-# Variables for video call support
-VIDEO_LIBS = libtoxav vpx x11
-VIDEO_CFLAGS = -DVIDEO
-ifneq (, $(findstring video_device.o, $(OBJ)))
-    VIDEO_OBJ = video_call.o
-else
-    VIDEO_OBJ = video_call.o video_device.o
-endif
-
-# Check if we can build audio support
-CHECK_AUDIO_LIBS = $(shell $(PKG_CONFIG) --exists $(AUDIO_LIBS) || echo -n "error")
-ifneq ($(CHECK_AUDIO_LIBS), error)
-    LIBS += $(AUDIO_LIBS)
-    CFLAGS += $(AUDIO_CFLAGS)
-    OBJ += $(AUDIO_OBJ)
-else ifneq ($(MAKECMDGOALS), clean)
-    MISSING_AUDIO_LIBS = $(shell for lib in $(AUDIO_LIBS) ; do if ! $(PKG_CONFIG) --exists $$lib ; then echo $$lib ; fi ; done)
-    $(warning WARNING -- Toxic will be compiled without audio support)
-    $(warning WARNING -- You need these libraries for audio support)
-    $(warning WARNING -- $(MISSING_AUDIO_LIBS))
-endif
-
-# Check if we can build video support
-CHECK_VIDEO_LIBS = $(shell pkg-config --exists $(VIDEO_LIBS) || echo -n "error")
-ifneq ($(CHECK_VIDEO_LIBS), error)
-    LIBS += $(VIDEO_LIBS)
-    CFLAGS += $(VIDEO_CFLAGS)
-    OBJ += $(VIDEO_OBJ)
-else ifneq ($(MAKECMDGOALS), clean)
-    MISSING_VIDEO_LIBS = $(shell for lib in $(VIDEO_LIBS) ; do if ! pkg-config --exists $$lib ; then echo $$lib ; fi ; done)
-    $(warning WARNING -- Toxic will be compiled without video support)
-    $(warning WARNING -- You will need these libraries for video support)
-    $(warning WARNING -- $(MISSING_VIDEO_LIBS))
-endif

cfg/checks/check_features.mk

@@ -9,7 +9,15 @@ endif
 # Check if we want build audio support
 AUDIO = $(shell if [ -z "$(DISABLE_AV)" ] || [ "$(DISABLE_AV)" = "0" ] ; then echo enabled ; else echo disabled ; fi)
 ifneq ($(AUDIO), disabled)
-    -include $(CHECKS_DIR)/av.mk
+    -include $(CHECKS_DIR)/audio.mk
+endif
+
+# Check if we want build video support
+VIDEO = $*shell if [ -z "$(DISABLE_AV)" ] || [ "$(DISABLE_AV)" = "0" ] ; then echo enabled ; else echo disabled ; fi)
+ifneq ($(AUDIO), disabled)
+ifneq ($(VIDEO), disabled)
+    -include $(CHECKS_DIR)/video.mk
+endif
 endif
 
 # Check if we want build sound notifications support

cfg/checks/video.mk

@@ -0,0 +1,21 @@
+# Variables for video call support
+VIDEO_LIBS = libtoxav vpx x11
+VIDEO_CFLAGS = -DVIDEO
+ifneq (, $(findstring video_device.o, $(OBJ)))
+    VIDEO_OBJ = video_call.o
+else
+    VIDEO_OBJ = video_call.o video_device.o
+endif
+
+# Check if we can build video support
+CHECK_VIDEO_LIBS = $(shell pkg-config --exists $(VIDEO_LIBS) || echo -n "error")
+ifneq ($(CHECK_VIDEO_LIBS), error)
+    LIBS += $(VIDEO_LIBS)
+    CFLAGS += $(VIDEO_CFLAGS)
+    OBJ += $(VIDEO_OBJ)
+else ifneq ($(MAKECMDGOALS), clean)
+    MISSING_VIDEO_LIBS = $(shell for lib in $(VIDEO_LIBS) ; do if ! pkg-config --exists $$lib ; then echo $$lib ; fi ; done)
+    $(warning WARNING -- Toxic will be compiled without video support)
+    $(warning WARNING -- You will need these libraries for video support)
+    $(warning WARNING -- $(MISSING_VIDEO_LIBS))
+endif

src/help.c

@@ -167,6 +167,15 @@ static void help_draw_global(ToxWindow *self)
     wprintw(win, "  /sdev <type> <id>          : Set active device\n");
 #endif /* AUDIO */
 
+#ifdef VIDEO
+    wattron(win, A_BOLD);
+    wprintw(win, "\n Video:\n");
+    wattroff(win, A_BOLD);
+
+    wprintw(win, "  /lsvdev <type>             : List video devices where type: in|out\n");
+    wprintw(win, "  /svdev <type> <id>         : Set active video device\n");
+#endif /* VIDEO */
+
     help_draw_bottom_menu(win);
 
     box(win, ACS_VLINE, ACS_HLINE);
@@ -203,6 +212,14 @@ static void help_draw_chat(ToxWindow *self)
     wprintw(win, "  /sense <n>                 : VAD sensitivity threshold\n");
 #endif /* AUDIO */
 
+#ifdef VIDEO
+    wattron(win, A_BOLD);
+    wprintw(win, "\n Video:\n");
+    wattroff(win, A_BOLD);
+    wprintw(win, "  /video                     : Send video capture\n");
+    wprintw(win, "  /endvideo                  : Close all video windows\n");
+#endif /* VIDEO */
+
     help_draw_bottom_menu(win);
 
     box(win, ACS_VLINE, ACS_HLINE);
@@ -282,7 +299,9 @@ void help_onKey(ToxWindow *self, wint_t key)
             break;
 
         case 'c':
-#ifdef AUDIO
+#ifdef VIDEO
+            help_init_window(self, 23, 80);
+#elif AUDIO
             help_init_window(self, 19, 80);
 #else
             help_init_window(self, 9, 80);
@@ -291,7 +310,9 @@ void help_onKey(ToxWindow *self, wint_t key)
             break;
 
         case 'g':
-#ifdef AUDIO
+#ifdef VIDEO
+            help_init_window(self, 28, 80);
+#elif AUDIO
             help_init_window(self, 24, 80);
 #else
             help_init_window(self, 20, 80);

src/video_call.c

@@ -80,11 +80,11 @@ void write_video_device_callback(uint32_t friend_number, uint16_t width, uint16_
                                            int32_t ystride, int32_t ustride, int32_t vstride,
                                            void *user_data)
 {
-    CallControl* cc = (CallControl*)user_data;
+    Call* this_call = &CallContrl.calls[friend_number];
-    Call* this_call = &cc->calls[friend_number];
 
-    if(write_video_out(width, height, y, u, v, ystride, ustride, vstride, user_data) == vde_DeviceNotActive)
+    if(write_video_out(width, height, y, u, v, ystride, ustride, vstride, user_data) == vde_DeviceNotActive) {
-        callback_recv_video_starting(cc->av, friend_number, cc);
+        callback_recv_video_starting(CallContrl.av, friend_number, &CallContrl);
+    }
 }
 
 int start_video_transmission(ToxWindow *self, ToxAV *av, Call *call)
@@ -155,7 +155,7 @@ void callback_recv_video_starting(void* av, uint32_t friend_number, void *arg)
     Call* this_call = &cc->calls[friend_number];
 
     open_primary_video_device(vdt_output, &this_call->out_idx);
-    CallContrl.video_call = true;
+    cc->video_call = true;
 }
 
 void callback_video_starting(void* av, uint32_t friend_number, void *arg)
@@ -167,16 +167,18 @@ void callback_video_starting(void* av, uint32_t friend_number, void *arg)
     int i;
     for (i = 0; i < MAX_WINDOWS_NUM; ++i) {
         if (windows[i].is_call && windows[i].num == friend_number) {
+            cc->video_call = true;
             if(0 != start_video_transmission(&windows[i], av, this_call)) {
                 line_info_add(&windows[i], NULL, NULL, NULL, SYS_MSG, 0, 0, "Error starting transmission!");
+                cc->video_call = false;
                 return;
             }
 
             line_info_add(&windows[i], NULL, NULL, NULL, SYS_MSG, 0, 0, "Video capture starting.");
-            cc->video_call = true;
         }
     }
 }
+
 void callback_video_ending(void* av, uint32_t friend_number, void *arg)
 {
     CallControl *cc = (CallControl*)arg;
@@ -191,8 +193,11 @@ void callback_video_ending(void* av, uint32_t friend_number, void *arg)
         }
     }
 
+    for (i = 0; i < MAX_CALLS; ++i)
+        stop_video_transmission(&CallContrl.calls[i], i);
+
     cc->video_call = false;
-    terminate_video();
+
 }
 /*
  * End of Callbacks

src/video_device.c

@@ -113,6 +113,54 @@ static int xioctl(int fh, unsigned long request, void *arg)
     return r;
 }
 
+static void yuv420tobgr(uint16_t width, uint16_t height, const uint8_t *y, 
+                 const uint8_t *u, const uint8_t *v, unsigned int ystride, 
+                 unsigned int ustride, unsigned int vstride, uint8_t *out)
+{
+    unsigned long int i, j;
+    for (i = 0; i < height; ++i) {
+        for (j = 0; j < width; ++j) {
+            uint8_t *point = out + 4 * ((i * width) + j);
+            int t_y = y[((i * ystride) + j)];
+            int t_u = u[(((i / 2) * ustride) + (j / 2))];
+            int t_v = v[(((i / 2) * vstride) + (j / 2))];
+            t_y = t_y < 16 ? 16 : t_y;
+
+            int r = (298 * (t_y - 16) + 409 * (t_v - 128) + 128) >> 8;
+            int g = (298 * (t_y - 16) - 100 * (t_u - 128) - 208 * (t_v - 128) + 128) >> 8;
+            int b = (298 * (t_y - 16) + 516 * (t_u - 128) + 128) >> 8;
+
+            point[2] = r>255? 255 : r<0 ? 0 : r;
+            point[1] = g>255? 255 : g<0 ? 0 : g;
+            point[0] = b>255? 255 : b<0 ? 0 : b;
+            point[3] = ~0;
+        }
+    }
+}
+
+static void yuv422to420(uint8_t *plane_y, uint8_t *plane_u, uint8_t *plane_v, 
+                 uint8_t *input, uint16_t width, uint16_t height)
+{
+    uint8_t *end = input + width * height * 2;
+    while(input != end) {
+        uint8_t *line_end = input + width * 2;
+        while(input != line_end) {
+            *plane_y++ = *input++;
+            *plane_u++ = *input++;
+            *plane_y++ = *input++;
+            *plane_v++ = *input++;
+        }
+
+        line_end = input + width * 2;
+        while(input != line_end) {
+            *plane_y++ = *input++;
+            input++;//u
+            *plane_y++ = *input++;
+            input++;//v
+        }
+    }
+}
+
 /* Meet devices */
 #ifdef VIDEO
 VideoDeviceError init_video_devices(ToxAV* av_)
@@ -124,7 +172,6 @@ VideoDeviceError init_video_devices()
 
     #ifdef __linux__
     for(; size[vdt_input] <= MAX_DEVICES; ++size[vdt_input]) {
-        //size[vdt_input] = i;
         int fd;
         char device_address[] = "/dev/videoXX";
         snprintf(device_address + 10, sizeof(char) * strlen(device_address) - 10, "%i", size[vdt_input]);
@@ -199,6 +246,7 @@ VideoDeviceError register_video_device_callback(int32_t friend_number, uint32_t
 VideoDeviceError set_primary_video_device(VideoDeviceType type, int32_t selection)
 {
     if (size[type] <= selection || selection < 0) return vde_InvalidSelection;
+   
     primary_video_device[type] = selection;
     
     return vde_None;
@@ -247,6 +295,8 @@ VideoDeviceError open_video_device(VideoDeviceType type, int32_t selection, uint
     }
     
     if (type == vdt_input) {
+        video_thread_paused = true;
+
 #ifdef __linux__
         char device_address[] = "/dev/videoXX";
         snprintf(device_address + 10 , sizeof(device_address) - 10, "%i", selection);
@@ -259,7 +309,7 @@ VideoDeviceError open_video_device(VideoDeviceType type, int32_t selection, uint
         /* Obtain video device capabilities */
         struct v4l2_capability cap;
         if (-1 == xioctl(device->fd, VIDIOC_QUERYCAP, &cap)) {
-            return vde_UnsupportedMode;
+            return vde_FailedStart;
         }
 
         /* Setup video format */
@@ -269,30 +319,29 @@ VideoDeviceError open_video_device(VideoDeviceType type, int32_t selection, uint
         fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
         fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
         if(-1 == xioctl(device->fd, VIDIOC_G_FMT, &fmt)) {
-            return vde_UnsupportedMode;
+            return vde_FailedStart;
         }
 
         device->video_width = fmt.fmt.pix.width;
         device->video_height = fmt.fmt.pix.height;
 
+
+
         /* Request buffers */
         struct v4l2_requestbuffers req;
         memset(&(req), 0, sizeof(req));
-
         req.count = 4;
         req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
         req.memory = V4L2_MEMORY_MMAP;
-
         if (-1 == xioctl(device->fd, VIDIOC_REQBUFS, &req)) {
-            assert(0);
+            return vde_FailedStart;
-            return vde_UnsupportedMode;
         }
 
         if(req.count < 2) {
-            return vde_UnsupportedMode;
+            return vde_FailedStart;
         }
 
-        device->buffers = calloc(req.count, sizeof(*device->buffers));
+        device->buffers = calloc(req.count, sizeof(struct VideoBuffer));
 
         for(i = 0; i < req.count; ++i) {
             struct v4l2_buffer buf;
@@ -300,11 +349,10 @@ VideoDeviceError open_video_device(VideoDeviceType type, int32_t selection, uint
 
             buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
             buf.memory = V4L2_MEMORY_MMAP;
-            buf.index = device->n_buffers;
+            buf.index = i;
-            device->n_buffers = i;
 
             if (-1 == xioctl(device->fd, VIDIOC_QUERYBUF, &buf)) {
-                return vde_UnsupportedMode;
+                return vde_FailedStart;
             }
 
             device->buffers[i].length = buf.length;
@@ -315,14 +363,16 @@ VideoDeviceError open_video_device(VideoDeviceType type, int32_t selection, uint
                           device->fd, buf.m.offset);
 
             if(MAP_FAILED == device->buffers[i].start) {
-                return vde_UnsupportedMode;
+                return vde_FailedStart;
             }
         }
+        device->n_buffers = i;
 
         enum v4l2_buf_type type;
 
         for (i = 0; i < device->n_buffers; ++i) {
             struct v4l2_buffer buf;
+            memset(&(buf), 0, sizeof(buf));
 
             buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
             buf.memory = V4L2_MEMORY_MMAP;
@@ -353,7 +403,7 @@ VideoDeviceError open_video_device(VideoDeviceType type, int32_t selection, uint
         if ((device->x_window = XCreateSimpleWindow(device->x_display, RootWindow(device->x_display, screen), 
                                                     0, 0, device->video_width, device->video_height, 0, 
                                                     BlackPixel(device->x_display, screen), 
-                                                    WhitePixel(device->x_display, screen))) == NULL) {
+                                                    BlackPixel(device->x_display, screen))) == NULL) {
             return vde_FailedStart;
         }
 
@@ -383,7 +433,7 @@ VideoDeviceError open_video_device(VideoDeviceType type, int32_t selection, uint
         if ((device->x_window = XCreateSimpleWindow(device->x_display, RootWindow(device->x_display, screen), 
                                                     0, 0, 100, 100, 0, 
                                                     BlackPixel(device->x_display, screen), 
-                                                    WhitePixel(device->x_display, screen))) == NULL) {
+                                                    BlackPixel(device->x_display, screen))) == NULL) {
             return vde_FailedStart;
         }
 
@@ -419,6 +469,20 @@ __inline VideoDeviceError write_video_out(uint16_t width, uint16_t height,
 
     pthread_mutex_lock(device->mutex);
 
+    int screen = DefaultScreen(device->x_display);
+
+    /* Recreate missing window */
+    if(!device->x_window) {
+        device->x_window = XCreateSimpleWindow(device->x_display, RootWindow(device->x_display, screen), 
+                                                    0, 0, device->video_width, device->video_height, 0, 
+                                                    BlackPixel(device->x_display, screen), 
+                                                    BlackPixel(device->x_display, screen));
+        XMapWindow(device->x_display, device->x_window);
+        XClearWindow(device->x_display, device->x_window);
+        XMapRaised(device->x_display, device->x_window);
+        XFlush(device->x_display);
+    }
+
     /* Resize X11 window to correct size */
     if(device->video_width != width || device->video_height != height) {
         device->video_width = width;
@@ -427,13 +491,11 @@ __inline VideoDeviceError write_video_out(uint16_t width, uint16_t height,
         vpx_img_free(&device->input);
         vpx_img_alloc(&device->input, VPX_IMG_FMT_I420, width, height, 1);
     }
-    int screen = DefaultScreen(device->x_display);
 
     /* Display video image */
     ystride = abs(ystride);
     ustride = abs(ustride);
     vstride = abs(vstride);
-    line_info_add(CallContrl.window, NULL, NULL, NULL, SYS_MSG, 0, 0, "ystride: %i ustride: %i vstride: %i", ystride, ustride, vstride);
 
     uint8_t *img_data = malloc(width * height * 4);
     yuv420tobgr(width, height, y, u, v, ystride, ustride, vstride, img_data);
@@ -571,17 +633,16 @@ VideoDeviceError close_video_device(VideoDeviceType type, uint32_t device_idx)
     if ( !device->ref_count ) {
         
         if (type == vdt_input) {
-
             enum v4l2_buf_type buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
             if(-1 == xioctl(device->fd, VIDIOC_STREAMOFF, &buf_type)) {}
 
             int i;
             for(i = 0; i < device->n_buffers; ++i) {
-                if (-1 == munmap(device->buffers[i].start, device->buffers[i].length)) {}
+                if (-1 == munmap(device->buffers[i].start, device->buffers[i].length)) {
+                }
             }
             close(device->fd);
-            
+            //vpx_img_free(&device->input);
-            vpx_img_free(&device->input);
             XDestroyWindow(device->x_display, device->x_window);
             XFlush(device->x_display);
             XCloseDisplay(device->x_display);
@@ -604,54 +665,6 @@ VideoDeviceError close_video_device(VideoDeviceType type, uint32_t device_idx)
     return rc;
 }
 
-void yuv420tobgr(uint16_t width, uint16_t height, const uint8_t *y, 
-                 const uint8_t *u, const uint8_t *v, unsigned int ystride, 
-                 unsigned int ustride, unsigned int vstride, uint8_t *out)
-{
-    unsigned long int i, j;
-    for (i = 0; i < height; ++i) {
-        for (j = 0; j < width; ++j) {
-            uint8_t *point = out + 4 * ((i * width) + j);
-            int t_y = y[((i * ystride) + j)];
-            int t_u = u[(((i / 2) * ustride) + (j / 2))];
-            int t_v = v[(((i / 2) * vstride) + (j / 2))];
-            t_y = t_y < 16 ? 16 : t_y;
-
-            int r = (298 * (t_y - 16) + 409 * (t_v - 128) + 128) >> 8;
-            int g = (298 * (t_y - 16) - 100 * (t_u - 128) - 208 * (t_v - 128) + 128) >> 8;
-            int b = (298 * (t_y - 16) + 516 * (t_u - 128) + 128) >> 8;
-
-            point[2] = r>255? 255 : r<0 ? 0 : r;
-            point[1] = g>255? 255 : g<0 ? 0 : g;
-            point[0] = b>255? 255 : b<0 ? 0 : b;
-            point[3] = ~0;
-        }
-    }
-}
-
-void yuv422to420(uint8_t *plane_y, uint8_t *plane_u, uint8_t *plane_v, 
-                 uint8_t *input, uint16_t width, uint16_t height)
-{
-    uint8_t *end = input + width * height * 2;
-    while(input != end) {
-        uint8_t *line_end = input + width * 2;
-        while(input != line_end) {
-            *plane_y++ = *input++;
-            *plane_u++ = *input++;
-            *plane_y++ = *input++;
-            *plane_v++ = *input++;
-        }
-
-        line_end = input + width * 2;
-        while(input != line_end) {
-            *plane_y++ = *input++;
-            input++;//u
-            *plane_y++ = *input++;
-            input++;//v
-        }
-    }
-}
-
 void print_video_devices(ToxWindow* self, VideoDeviceType type)
 {
     int i;

src/windows.h

@@ -153,7 +153,9 @@ struct ToxWindow {
     int ringing_sound;
 
 #ifdef VIDEO
+
     int video_device_selection[2]; /* -1 if not set, if set uses these selections instead of primary video device */
+    
 #endif /* VIDEO */
 
 #endif /* AUDIO */