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avfvideosrc: Allow specifying crop coordinates during screen capture
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3153>
This commit is contained in:
Piotr Brzeziński
GStreamer Marge Bot
parent
f5451f7ff2
commit
1e70525bc9
1 changed files with 83 additions and 6 deletions
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@ -194,6 +194,10 @@ gst_avf_video_source_device_type_get_type (void)
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BOOL captureScreen;
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BOOL captureScreenCursor;
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BOOL captureScreenMouseClicks;
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guint cropX;
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guint cropY;
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guint cropWidth;
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guint cropHeight;
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BOOL useVideoMeta;
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GstGLContextHelper *ctxh;
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@ -214,6 +218,10 @@ gst_avf_video_source_device_type_get_type (void)
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@property BOOL captureScreen;
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@property BOOL captureScreenCursor;
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@property BOOL captureScreenMouseClicks;
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@property guint cropX;
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@property guint cropY;
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@property guint cropWidth;
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@property guint cropHeight;
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- (BOOL)openScreenInput;
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- (BOOL)openDeviceInput;
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@ -294,7 +302,7 @@ static AVCaptureVideoOrientation GstAVFVideoSourceOrientation2AVCaptureVideoOrie
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@implementation GstAVFVideoSrcImpl
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@synthesize deviceIndex, deviceName, position, orientation, deviceType, doStats,
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fps, captureScreen, captureScreenCursor, captureScreenMouseClicks;
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fps, captureScreen, captureScreenCursor, captureScreenMouseClicks, cropX, cropY, cropWidth, cropHeight;
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- (id)init
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{
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@ -393,6 +401,7 @@ static AVCaptureVideoOrientation GstAVFVideoSourceOrientation2AVCaptureVideoOrie
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return NO;
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#else
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CGDirectDisplayID displayId;
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int screenHeight, screenWidth;
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GST_DEBUG_OBJECT (element, "Opening screen input");
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@ -403,7 +412,6 @@ static AVCaptureVideoOrientation GstAVFVideoSourceOrientation2AVCaptureVideoOrie
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AVCaptureScreenInput *screenInput =
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[[AVCaptureScreenInput alloc] initWithDisplayID:displayId];
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@try {
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[screenInput setValue:[NSNumber numberWithBool:captureScreenCursor]
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forKey:@"capturesCursor"];
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@ -415,6 +423,24 @@ static AVCaptureVideoOrientation GstAVFVideoSourceOrientation2AVCaptureVideoOrie
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}
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GST_WARNING ("Capturing cursor is only supported in OS X >= 10.8");
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}
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screenHeight = CGDisplayPixelsHigh (displayId);
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screenWidth = CGDisplayPixelsWide (displayId);
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if (cropX + cropWidth > screenWidth || cropY + cropHeight > screenHeight) {
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GST_WARNING ("Capture region outside of screen bounds, ignoring");
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} else {
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/* If width/height is not specified, assume max possible values */
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int rectWidth = cropWidth ? cropWidth : (screenWidth - cropX);
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int rectHeight = cropHeight ? cropHeight : (screenHeight - cropY);
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/* cropRect (0,0) is bottom left, which feels counterintuitive.
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* Make cropY relative to the top edge instead */
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CGRect cropRect = CGRectMake (cropX, screenHeight - cropY - rectHeight,
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rectWidth, rectHeight);
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[screenInput setCropRect:cropRect];
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}
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screenInput.capturesMouseClicks = captureScreenMouseClicks;
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input = screenInput;
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return YES;
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@ -771,7 +797,14 @@ checked:
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if (captureScreen) {
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#if !HAVE_IOS
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CGRect rect = CGDisplayBounds ([self getDisplayIdFromDeviceIndex]);
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CGRect rect;
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AVCaptureScreenInput *screenInput = (AVCaptureScreenInput *)input;
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if (CGRectIsEmpty (screenInput.cropRect)) {
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rect = CGDisplayBounds ([self getDisplayIdFromDeviceIndex]);
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} else {
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rect = screenInput.cropRect;
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}
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float scale = [self getScaleFactorFromDeviceIndex];
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for (NSNumber *pixel_format in pixel_formats) {
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GstVideoFormat gst_format = [self getGstVideoFormat:pixel_format];
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@ -1244,6 +1277,10 @@ enum
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PROP_CAPTURE_SCREEN,
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PROP_CAPTURE_SCREEN_CURSOR,
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PROP_CAPTURE_SCREEN_MOUSE_CLICKS,
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PROP_CAPTURE_SCREEN_CROP_X,
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PROP_CAPTURE_SCREEN_CROP_Y,
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PROP_CAPTURE_SCREEN_CROP_WIDTH,
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PROP_CAPTURE_SCREEN_CROP_HEIGHT,
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#endif
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};
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@ -1353,6 +1390,22 @@ gst_avf_video_src_class_init (GstAVFVideoSrcClass * klass)
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g_param_spec_boolean ("capture-screen-mouse-clicks", "Enable mouse clicks capture",
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"Enable mouse clicks capture while capturing screen", FALSE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CAPTURE_SCREEN_CROP_X,
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g_param_spec_uint ("screen-crop-x", "Screen capture crop X",
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"Horizontal coordinate of top left corner of the screen capture area",
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0, G_MAXUINT, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CAPTURE_SCREEN_CROP_Y,
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g_param_spec_uint ("screen-crop-y", "Screen capture crop Y",
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"Vertical coordinate of top left corner of the screen capture area",
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0, G_MAXUINT, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CAPTURE_SCREEN_CROP_WIDTH,
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g_param_spec_uint ("screen-crop-width", "Screen capture crop width",
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"Width of the screen capture area (0 = maximum)",
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0, G_MAXUINT, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CAPTURE_SCREEN_CROP_HEIGHT,
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g_param_spec_uint ("screen-crop-height", "Screen capture crop height",
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"Height of the screen capture area (0 = maximum)",
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0, G_MAXUINT, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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#endif
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GST_DEBUG_CATEGORY_INIT (gst_avf_video_src_debug, "avfvideosrc",
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@ -1394,6 +1447,18 @@ gst_avf_video_src_get_property (GObject * object, guint prop_id, GValue * value,
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case PROP_CAPTURE_SCREEN_MOUSE_CLICKS:
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g_value_set_boolean (value, impl.captureScreenMouseClicks);
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break;
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case PROP_CAPTURE_SCREEN_CROP_X:
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g_value_set_uint (value, impl.cropX);
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break;
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case PROP_CAPTURE_SCREEN_CROP_Y:
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g_value_set_uint (value, impl.cropY);
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break;
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case PROP_CAPTURE_SCREEN_CROP_WIDTH:
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g_value_set_uint (value, impl.cropWidth);
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break;
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case PROP_CAPTURE_SCREEN_CROP_HEIGHT:
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g_value_set_uint (value, impl.cropHeight);
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break;
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#endif
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case PROP_DEVICE_INDEX:
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g_value_set_int (value, impl.deviceIndex);
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@ -1402,13 +1467,13 @@ gst_avf_video_src_get_property (GObject * object, guint prop_id, GValue * value,
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g_value_set_string (value, impl.deviceName);
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break;
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case PROP_POSITION:
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g_value_set_enum(value, impl.position);
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g_value_set_enum (value, impl.position);
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break;
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case PROP_ORIENTATION:
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g_value_set_enum(value, impl.orientation);
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g_value_set_enum (value, impl.orientation);
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break;
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case PROP_DEVICE_TYPE:
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g_value_set_enum(value, impl.deviceType);
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g_value_set_enum (value, impl.deviceType);
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break;
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case PROP_DO_STATS:
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g_value_set_boolean (value, impl.doStats);
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@ -1441,6 +1506,18 @@ gst_avf_video_src_set_property (GObject * object, guint prop_id,
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case PROP_CAPTURE_SCREEN_MOUSE_CLICKS:
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impl.captureScreenMouseClicks = g_value_get_boolean (value);
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break;
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case PROP_CAPTURE_SCREEN_CROP_X:
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impl.cropX = g_value_get_uint (value);
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break;
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case PROP_CAPTURE_SCREEN_CROP_Y:
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impl.cropY = g_value_get_uint (value);
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break;
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case PROP_CAPTURE_SCREEN_CROP_WIDTH:
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impl.cropWidth = g_value_get_uint (value);
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break;
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case PROP_CAPTURE_SCREEN_CROP_HEIGHT:
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impl.cropHeight = g_value_get_uint (value);
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break;
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#endif
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case PROP_DEVICE_INDEX:
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impl.deviceIndex = g_value_get_int (value);
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