#define MINIMUM_OUTLINE_OFFSET 1.0
#define DEFAULT_SCALE_BASIS 640
-#define COMP_Y(ret, r, g, b) \
-{ \
- ret = (int) (((19595 * r) >> 16) + ((38470 * g) >> 16) + ((7471 * b) >> 16)); \
- ret = CLAMP (ret, 0, 255); \
-}
-
-#define COMP_U(ret, r, g, b) \
-{ \
- ret = (int) (-((11059 * r) >> 16) - ((21709 * g) >> 16) + ((32768 * b) >> 16) + 128); \
- ret = CLAMP (ret, 0, 255); \
-}
-
-#define COMP_V(ret, r, g, b) \
-{ \
- ret = (int) (((32768 * r) >> 16) - ((27439 * g) >> 16) - ((5329 * b) >> 16) + 128); \
- ret = CLAMP (ret, 0, 255); \
-}
-
-#define BLEND(ret, alpha, v0, v1) \
-{ \
- ret = (v0 * alpha + v1 * (255 - alpha)) / 255; \
-}
-
-#define OVER(ret, alphaA, Ca, alphaB, Cb, alphaNew) \
-{ \
- gint _tmp; \
- _tmp = (Ca * alphaA + Cb * alphaB * (255 - alphaA) / 255) / alphaNew; \
- ret = CLAMP (_tmp, 0, 255); \
-}
-
-#if G_BYTE_ORDER == G_LITTLE_ENDIAN
-# define CAIRO_ARGB_A 3
-# define CAIRO_ARGB_R 2
-# define CAIRO_ARGB_G 1
-# define CAIRO_ARGB_B 0
-#else
-# define CAIRO_ARGB_A 0
-# define CAIRO_ARGB_R 1
-# define CAIRO_ARGB_G 2
-# define CAIRO_ARGB_B 3
-#endif
-
enum
{
PROP_0,
PROP_LAST
};
-#define VIDEO_FORMATS "{ BGRx, RGBx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, \
- I420, YV12, AYUV, YUY2, UYVY, v308, v210, v216, Y41B, Y42B, Y444, \
- Y800, Y16, NV12, NV21, UYVP, A420, YUV9, IYU1 }"
+#define VIDEO_FORMATS GST_VIDEO_OVERLAY_COMPOSITION_BLEND_FORMATS
static GstStaticPadTemplate src_template_factory =
GST_STATIC_PAD_TEMPLATE ("src",
"Shift Y position up or down. Unit is pixels.", G_MININT, G_MAXINT,
DEFAULT_PROP_DELTAY, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
- * GstBaseTextOverlay:xpos
+ * GstBaseTextOverlay:xpos:
*
* Horizontal position of the rendered text when using positioned alignment.
- *
- * Since: 0.10.31
- **/
+ */
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_XPOS,
g_param_spec_double ("xpos", "horizontal position",
"Horizontal position when using position alignment", 0, 1.0,
DEFAULT_PROP_XPOS,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
/**
- * GstBaseTextOverlay:ypos
+ * GstBaseTextOverlay:ypos:
*
* Vertical position of the rendered text when using positioned alignment.
- *
- * Since: 0.10.31
- **/
+ */
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_YPOS,
g_param_spec_double ("ypos", "vertical position",
"Vertical position when using position alignment", 0, 1.0,
"for syntax.", DEFAULT_PROP_FONT_DESC,
G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
/**
- * GstBaseTextOverlay:color
+ * GstBaseTextOverlay:color:
*
* Color of the rendered text.
- *
- * Since: 0.10.31
- **/
+ */
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_COLOR,
g_param_spec_uint ("color", "Color",
"Color to use for text (big-endian ARGB).", 0, G_MAXUINT32,
DEFAULT_PROP_COLOR,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
/**
- * GstTextOverlay:outline-color
+ * GstTextOverlay:outline-color:
*
* Color of the outline of the rendered text.
- *
- * Since: 0.10.35
- **/
+ */
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_OUTLINE_COLOR,
g_param_spec_uint ("outline-color", "Text Outline Color",
"Color to use for outline the text (big-endian ARGB).", 0,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
/**
- * GstBaseTextOverlay:line-alignment
+ * GstBaseTextOverlay:line-alignment:
*
* Alignment of text lines relative to each other (for multi-line text)
- *
- * Since: 0.10.15
- **/
+ */
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_LINE_ALIGNMENT,
g_param_spec_enum ("line-alignment", "line alignment",
"Alignment of text lines relative to each other.",
GST_TYPE_BASE_TEXT_OVERLAY_LINE_ALIGN, DEFAULT_PROP_LINE_ALIGNMENT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
- * GstBaseTextOverlay:silent
+ * GstBaseTextOverlay:silent:
*
* If set, no text is rendered. Useful to switch off text rendering
* temporarily without removing the textoverlay element from the pipeline.
- *
- * Since: 0.10.15
- **/
+ */
/* FIXME 0.11: rename to "visible" or "text-visible" or "render-text" */
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SILENT,
g_param_spec_boolean ("silent", "silent",
DEFAULT_PROP_SILENT,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
/**
- * GstBaseTextOverlay:wait-text
+ * GstBaseTextOverlay:wait-text:
*
* If set, the video will block until a subtitle is received on the text pad.
* If video and subtitles are sent in sync, like from the same demuxer, this
* property should be set.
- *
- * Since: 0.10.20
- **/
+ */
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_WAIT_TEXT,
g_param_spec_boolean ("wait-text", "Wait Text",
"Whether to wait for subtitles",
GST_DEBUG_FUNCPTR (gst_base_text_overlay_video_chain));
gst_pad_set_query_function (overlay->video_sinkpad,
GST_DEBUG_FUNCPTR (gst_base_text_overlay_video_query));
+ GST_PAD_SET_PROXY_ALLOCATION (overlay->video_sinkpad);
gst_element_add_pad (GST_ELEMENT (overlay), overlay->video_sinkpad);
template =
break;
}
default:
- ret = gst_pad_peer_query (overlay->video_sinkpad, query);
+ ret = gst_pad_query_default (pad, parent, query);
break;
}
/* draw shadow text */
{
- PangoAttrList *origin_attr, *filtered_attr;
+ PangoAttrList *origin_attr, *filtered_attr, *temp_attr;
+ /* Store a ref on the original attributes for later restoration */
origin_attr =
pango_attr_list_ref (pango_layout_get_attributes (overlay->layout));
+ /* Take a copy of the original attributes, because pango_attr_list_filter
+ * modifies the passed list */
+ temp_attr = pango_attr_list_copy (origin_attr);
filtered_attr =
- pango_attr_list_filter (pango_attr_list_copy (origin_attr),
+ pango_attr_list_filter (temp_attr,
gst_text_overlay_filter_foreground_attr, NULL);
+ pango_attr_list_unref (temp_attr);
cairo_save (cr);
cairo_translate (cr, overlay->shadow_offset, overlay->shadow_offset);
gst_base_text_overlay_set_composition (overlay);
}
-#define BOX_XPAD 6
-#define BOX_YPAD 6
-
static inline void
gst_base_text_overlay_shade_planar_Y (GstBaseTextOverlay * overlay,
GstVideoFrame * dest, gint x0, gint x1, gint y0, gint y1)
dest_stride = dest->info.stride[0];
dest_ptr = dest->data[0];
- x0 = CLAMP (x0 - BOX_XPAD, 0, overlay->width);
- x1 = CLAMP (x1 + BOX_XPAD, 0, overlay->width);
-
- y0 = CLAMP (y0 - BOX_YPAD, 0, overlay->height);
- y1 = CLAMP (y1 + BOX_YPAD, 0, overlay->height);
-
for (i = y0; i < y1; ++i) {
for (j = x0; j < x1; ++j) {
gint y = dest_ptr[(i * dest_stride) + j] + overlay->shading_value;
dest_ptr = GST_VIDEO_FRAME_COMP_DATA (dest, 0);
pixel_stride = GST_VIDEO_FRAME_COMP_PSTRIDE (dest, 0);
- x0 = CLAMP (x0 - BOX_XPAD, 0, overlay->width);
- x1 = CLAMP (x1 + BOX_XPAD, 0, overlay->width);
-
- y0 = CLAMP (y0 - BOX_YPAD, 0, overlay->height);
- y1 = CLAMP (y1 + BOX_YPAD, 0, overlay->height);
-
if (x0 != 0)
x0 = GST_VIDEO_FORMAT_INFO_SCALE_WIDTH (dest->info.finfo, 0, x0);
if (x1 != 0)
dest_ptr = dest->data[0];
- x0 = CLAMP (x0 - BOX_XPAD, 0, overlay->width);
- x1 = CLAMP (x1 + BOX_XPAD, 0, overlay->width);
-
- y0 = CLAMP (y0 - BOX_YPAD, 0, overlay->height);
- y1 = CLAMP (y1 + BOX_YPAD, 0, overlay->height);
-
for (i = y0; i < y1; i++) {
for (j = x0; j < x1; j++) {
gint y, y_pos, k;
}
}
+/* FIXME: orcify */
+static void
+gst_base_text_overlay_shade_rgb24 (GstBaseTextOverlay * overlay,
+ GstVideoFrame * frame, gint x0, gint x1, gint y0, gint y1)
+{
+ const int pstride = 3;
+ gint y, x, stride, shading_val, tmp;
+ guint8 *p;
+
+ shading_val = overlay->shading_value;
+ stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
+
+ for (y = y0; y < y1; ++y) {
+ p = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
+ p += (y * stride) + (x0 * pstride);
+ for (x = x0; x < x1; ++x) {
+ tmp = *p + shading_val;
+ *p++ = CLAMP (tmp, 0, 255);
+ tmp = *p + shading_val;
+ *p++ = CLAMP (tmp, 0, 255);
+ tmp = *p + shading_val;
+ *p++ = CLAMP (tmp, 0, 255);
+ }
+ }
+}
+
+static void
+gst_base_text_overlay_shade_IYU1 (GstBaseTextOverlay * overlay,
+ GstVideoFrame * frame, gint x0, gint x1, gint y0, gint y1)
+{
+ gint y, x, stride, shading_val, tmp;
+ guint8 *p;
+
+ shading_val = overlay->shading_value;
+ stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
+
+ /* IYU1: packed 4:1:1 YUV (Cb-Y0-Y1-Cr-Y2-Y3 ...) */
+ for (y = y0; y < y1; ++y) {
+ p = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
+ /* move to Y0 or Y1 (we pretend the chroma is the last of the 3 bytes) */
+ /* FIXME: we're not pixel-exact here if x0 is an odd number, but it's
+ * unlikely anyone will notice.. */
+ p += (y * stride) + ((x0 / 2) * 3) + 1;
+ for (x = x0; x < x1; x += 2) {
+ tmp = *p + shading_val;
+ *p++ = CLAMP (tmp, 0, 255);
+ tmp = *p + shading_val;
+ *p++ = CLAMP (tmp, 0, 255);
+ /* skip chroma */
+ p++;
+ }
+ }
+}
+
#define ARGB_SHADE_FUNCTION(name, OFFSET) \
static inline void \
gst_base_text_overlay_shade_##name (GstBaseTextOverlay * overlay, GstVideoFrame * dest, \
\
dest_ptr = dest->data[0];\
\
- x0 = CLAMP (x0 - BOX_XPAD, 0, overlay->width);\
- x1 = CLAMP (x1 + BOX_XPAD, 0, overlay->width);\
- \
- y0 = CLAMP (y0 - BOX_YPAD, 0, overlay->height);\
- y1 = CLAMP (y1 + BOX_YPAD, 0, overlay->height);\
- \
for (i = y0; i < y1; i++) {\
for (j = x0; j < x1; j++) {\
gint y, y_pos, k;\
overlay->need_render = FALSE;
}
+/* FIXME: should probably be relative to width/height (adjusted for PAR) */
+#define BOX_XPAD 6
+#define BOX_YPAD 6
+
+static void
+gst_base_text_overlay_shade_background (GstBaseTextOverlay * overlay,
+ GstVideoFrame * frame, gint x0, gint x1, gint y0, gint y1)
+{
+ x0 = CLAMP (x0 - BOX_XPAD, 0, overlay->width);
+ x1 = CLAMP (x1 + BOX_XPAD, 0, overlay->width);
+
+ y0 = CLAMP (y0 - BOX_YPAD, 0, overlay->height);
+ y1 = CLAMP (y1 + BOX_YPAD, 0, overlay->height);
+
+ switch (overlay->format) {
+ case GST_VIDEO_FORMAT_I420:
+ case GST_VIDEO_FORMAT_YV12:
+ case GST_VIDEO_FORMAT_NV12:
+ case GST_VIDEO_FORMAT_NV21:
+ case GST_VIDEO_FORMAT_Y41B:
+ case GST_VIDEO_FORMAT_Y42B:
+ case GST_VIDEO_FORMAT_Y444:
+ case GST_VIDEO_FORMAT_YUV9:
+ case GST_VIDEO_FORMAT_YVU9:
+ case GST_VIDEO_FORMAT_GRAY8:
+ case GST_VIDEO_FORMAT_A420:
+ gst_base_text_overlay_shade_planar_Y (overlay, frame, x0, x1, y0, y1);
+ break;
+ case GST_VIDEO_FORMAT_AYUV:
+ case GST_VIDEO_FORMAT_UYVY:
+ case GST_VIDEO_FORMAT_YUY2:
+ case GST_VIDEO_FORMAT_v308:
+ gst_base_text_overlay_shade_packed_Y (overlay, frame, x0, x1, y0, y1);
+ break;
+ case GST_VIDEO_FORMAT_xRGB:
+ gst_base_text_overlay_shade_xRGB (overlay, frame, x0, x1, y0, y1);
+ break;
+ case GST_VIDEO_FORMAT_xBGR:
+ gst_base_text_overlay_shade_xBGR (overlay, frame, x0, x1, y0, y1);
+ break;
+ case GST_VIDEO_FORMAT_BGRx:
+ gst_base_text_overlay_shade_BGRx (overlay, frame, x0, x1, y0, y1);
+ break;
+ case GST_VIDEO_FORMAT_RGBx:
+ gst_base_text_overlay_shade_RGBx (overlay, frame, x0, x1, y0, y1);
+ break;
+ case GST_VIDEO_FORMAT_ARGB:
+ gst_base_text_overlay_shade_ARGB (overlay, frame, x0, x1, y0, y1);
+ break;
+ case GST_VIDEO_FORMAT_ABGR:
+ gst_base_text_overlay_shade_ABGR (overlay, frame, x0, x1, y0, y1);
+ break;
+ case GST_VIDEO_FORMAT_RGBA:
+ gst_base_text_overlay_shade_RGBA (overlay, frame, x0, x1, y0, y1);
+ break;
+ case GST_VIDEO_FORMAT_BGRA:
+ gst_base_text_overlay_shade_BGRA (overlay, frame, x0, x1, y0, y1);
+ break;
+ case GST_VIDEO_FORMAT_BGR:
+ case GST_VIDEO_FORMAT_RGB:
+ gst_base_text_overlay_shade_rgb24 (overlay, frame, x0, x1, y0, y1);
+ break;
+ case GST_VIDEO_FORMAT_IYU1:
+ gst_base_text_overlay_shade_IYU1 (overlay, frame, x0, x1, y0, y1);
+ break;
+ default:
+ GST_FIXME_OBJECT (overlay, "implement background shading for format %s",
+ gst_video_format_to_string (GST_VIDEO_FRAME_FORMAT (frame)));
+ break;
+ }
+}
+
static GstFlowReturn
gst_base_text_overlay_push_frame (GstBaseTextOverlay * overlay,
GstBuffer * video_frame)
{
- gint xpos, ypos;
GstVideoFrame frame;
if (overlay->composition == NULL)
GST_MAP_READWRITE))
goto invalid_frame;
- gst_base_text_overlay_get_pos (overlay, &xpos, &ypos);
-
/* shaded background box */
if (overlay->want_shading) {
- switch (overlay->format) {
- case GST_VIDEO_FORMAT_I420:
- case GST_VIDEO_FORMAT_NV12:
- case GST_VIDEO_FORMAT_NV21:
- gst_base_text_overlay_shade_planar_Y (overlay, &frame,
- xpos, xpos + overlay->image_width,
- ypos, ypos + overlay->image_height);
- break;
- case GST_VIDEO_FORMAT_AYUV:
- case GST_VIDEO_FORMAT_UYVY:
- gst_base_text_overlay_shade_packed_Y (overlay, &frame,
- xpos, xpos + overlay->image_width,
- ypos, ypos + overlay->image_height);
- break;
- case GST_VIDEO_FORMAT_xRGB:
- gst_base_text_overlay_shade_xRGB (overlay, &frame,
- xpos, xpos + overlay->image_width,
- ypos, ypos + overlay->image_height);
- break;
- case GST_VIDEO_FORMAT_xBGR:
- gst_base_text_overlay_shade_xBGR (overlay, &frame,
- xpos, xpos + overlay->image_width,
- ypos, ypos + overlay->image_height);
- break;
- case GST_VIDEO_FORMAT_BGRx:
- gst_base_text_overlay_shade_BGRx (overlay, &frame,
- xpos, xpos + overlay->image_width,
- ypos, ypos + overlay->image_height);
- break;
- case GST_VIDEO_FORMAT_RGBx:
- gst_base_text_overlay_shade_RGBx (overlay, &frame,
- xpos, xpos + overlay->image_width,
- ypos, ypos + overlay->image_height);
- break;
- case GST_VIDEO_FORMAT_ARGB:
- gst_base_text_overlay_shade_ARGB (overlay, &frame,
- xpos, xpos + overlay->image_width,
- ypos, ypos + overlay->image_height);
- break;
- case GST_VIDEO_FORMAT_ABGR:
- gst_base_text_overlay_shade_ABGR (overlay, &frame,
- xpos, xpos + overlay->image_width,
- ypos, ypos + overlay->image_height);
- break;
- case GST_VIDEO_FORMAT_RGBA:
- gst_base_text_overlay_shade_RGBA (overlay, &frame,
- xpos, xpos + overlay->image_width,
- ypos, ypos + overlay->image_height);
- break;
- case GST_VIDEO_FORMAT_BGRA:
- gst_base_text_overlay_shade_BGRA (overlay, &frame,
- xpos, xpos + overlay->image_width,
- ypos, ypos + overlay->image_height);
- break;
- default:
- g_assert_not_reached ();
- }
+ gint xpos, ypos;
+
+ gst_base_text_overlay_get_pos (overlay, &xpos, &ypos);
+
+ gst_base_text_overlay_shade_background (overlay, &frame,
+ xpos, xpos + overlay->image_width, ypos, ypos + overlay->image_height);
}
gst_video_overlay_composition_blend (overlay->composition, &frame);
projects / platform / upstream / gstreamer.git / blobdiff