Ejemplo n.º 1
0
static void chroma_key_render(void *data, gs_effect_t *effect)
{
	struct chroma_key_filter_data *filter = data;
	obs_source_t *target = obs_filter_get_target(filter->context);
	uint32_t width = obs_source_get_base_width(target);
	uint32_t height = obs_source_get_base_height(target);
	struct vec2 pixel_size;

	obs_source_process_filter_begin(filter->context, GS_RGBA,
			OBS_ALLOW_DIRECT_RENDERING);

	vec2_set(&pixel_size, 1.0f / (float)width, 1.0f / (float)height);

	gs_effect_set_vec4(filter->color_param, &filter->color);
	gs_effect_set_float(filter->contrast_param, filter->contrast);
	gs_effect_set_float(filter->brightness_param, filter->brightness);
	gs_effect_set_float(filter->gamma_param, filter->gamma);
	gs_effect_set_vec2(filter->chroma_param, &filter->chroma);
	gs_effect_set_vec4(filter->key_rgb_param, &filter->key_rgb);
	gs_effect_set_vec2(filter->pixel_size_param, &pixel_size);
	gs_effect_set_float(filter->similarity_param, filter->similarity);
	gs_effect_set_float(filter->smoothness_param, filter->smoothness);
	gs_effect_set_float(filter->spill_param, filter->spill);

	obs_source_process_filter_end(filter->context, filter->effect, 0, 0);

	UNUSED_PARAMETER(effect);
}
Ejemplo n.º 2
0
static void calc_crop_dimensions(struct crop_filter_data *filter,
		struct vec2 *mul_val, struct vec2 *add_val)
{
	obs_source_t *target = obs_filter_get_target(filter->context);
	uint32_t width;
	uint32_t height;
	uint32_t total;

	if (!target) {
		width = 0;
		height = 0;
	} else {
		width = obs_source_get_base_width(target);
		height = obs_source_get_base_height(target);
	}

	if (filter->absolute) {
		uint32_t max_abs_cx = (filter->left + filter->abs_cx);
		if (max_abs_cx > width) max_abs_cx = width;
		max_abs_cx -= filter->left;

		total = max_abs_cx < width ? (width - max_abs_cx) : 0;
	} else {
		total = filter->left + filter->right;
	}
	filter->width = total > width ? 0 : (width - total);

	if (filter->absolute) {
		uint32_t max_abs_cy = (filter->top + filter->abs_cy);
		if (max_abs_cy > height) max_abs_cy = height;
		max_abs_cy -= filter->top;

		total = max_abs_cy < height ? (height - max_abs_cy) : 0;
	} else {
		total = filter->top + filter->bottom;
	}
	filter->height = total > height ? 0 : (height - total);

	if (width && filter->width) {
		mul_val->x = (float)filter->width / (float)width;
		add_val->x = (float)filter->left / (float)width;
	}

	if (height && filter->height) {
		mul_val->y = (float)filter->height / (float)height;
		add_val->y = (float)filter->top / (float)height;
	}
}
Ejemplo n.º 3
0
static void scale_filter_tick(void *data, float seconds)
{
	struct scale_filter_data *filter = data;
	enum obs_base_effect type;
	obs_source_t *target;
	bool lower_than_2x;
	double cx_f;
	double cy_f;
	int cx;
	int cy;

	if (filter->base_canvas_resolution) {
		struct obs_video_info ovi;
		obs_get_video_info(&ovi);
		filter->cx_in = ovi.base_width;
		filter->cy_in = ovi.base_height;
	}

	target = obs_filter_get_target(filter->context);
	filter->cx_out = 0;
	filter->cy_out = 0;

	filter->target_valid = !!target;
	if (!filter->target_valid)
		return;

	cx = obs_source_get_base_width(target);
	cy = obs_source_get_base_height(target);

	if (!cx || !cy) {
		filter->target_valid = false;
		return;
	}

	filter->cx_out = cx;
	filter->cy_out = cy;

	if (!filter->valid)
		return;

	/* ------------------------- */

	cx_f = (double)cx;
	cy_f = (double)cy;

	double old_aspect = cx_f / cy_f;
	double new_aspect =
		(double)filter->cx_in / (double)filter->cy_in;

	if (filter->aspect_ratio_only) {
		if (fabs(old_aspect - new_aspect) <= EPSILON) {
			filter->target_valid = false;
			return;
		} else {
			if (new_aspect > old_aspect) {
				filter->cx_out = (int)(cy_f * new_aspect);
				filter->cy_out = cy;
			} else {
				filter->cx_out = cx;
				filter->cy_out = (int)(cx_f / new_aspect);
			}
		}
	} else {
		filter->cx_out = filter->cx_in;
		filter->cy_out = filter->cy_in;
	}

	vec2_set(&filter->dimension_i,
			1.0f / (float)cx,
			1.0f / (float)cy);

	if (filter->undistort) {
		filter->undistort_factor = new_aspect / old_aspect;
	} else {
		filter->undistort_factor = 1.0;
	}

	/* ------------------------- */

	lower_than_2x = filter->cx_out < cx / 2 || filter->cy_out < cy / 2;

	if (lower_than_2x && filter->sampling != OBS_SCALE_POINT) {
		type = OBS_EFFECT_BILINEAR_LOWRES;
	} else {
		switch (filter->sampling) {
		default:
		case OBS_SCALE_POINT:
		case OBS_SCALE_BILINEAR: type = OBS_EFFECT_DEFAULT; break;
		case OBS_SCALE_BICUBIC:  type = OBS_EFFECT_BICUBIC; break;
		case OBS_SCALE_LANCZOS:  type = OBS_EFFECT_LANCZOS; break;
		}
	}

	filter->effect = obs_get_base_effect(type);
	filter->image_param = gs_effect_get_param_by_name(filter->effect,
			"image");

	if (type != OBS_EFFECT_DEFAULT) {
		filter->dimension_param = gs_effect_get_param_by_name(
				filter->effect, "base_dimension_i");
	} else {
		filter->dimension_param = NULL;
	}

	if (type == OBS_EFFECT_BICUBIC || type == OBS_EFFECT_LANCZOS) {
		filter->undistort_factor_param = gs_effect_get_param_by_name(
			filter->effect, "undistort_factor");
	}
	else {
		filter->undistort_factor_param = NULL;
	}

	UNUSED_PARAMETER(seconds);
}