And clean up the caps parsing.
plugin_LTLIBRARIES = libgstvideomixer.la
libgstvideomixer_la_SOURCES = videomixer.c blend_ayuv.c blend_bgra.c blend_i420.c
-libgstvideomixer_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CONTROLLER_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS)
-libgstvideomixer_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS) $(GST_CONTROLLER_LIBS)
+libgstvideomixer_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CONTROLLER_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS)
+libgstvideomixer_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS) $(GST_CONTROLLER_LIBS) $(GST_PLUGINS_BASE_CFLAGS) -lgstvideo-@GST_MAJORMINOR@
libgstvideomixer_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstvideomixer_la_LIBTOOLFLAGS = --tag=disable-static
#define BLEND_MODE BLEND_NORMAL
-void
-gst_videomixer_blend_bgra_bgra (guint8 * src, gint xpos, gint ypos,
- gint src_width, gint src_height, gdouble src_alpha,
- guint8 * dest, gint dest_width, gint dest_height)
-{
- gint alpha, b_alpha;
- gint i, j;
- gint src_stride, dest_stride;
- gint src_add, dest_add;
- gint B, G, R;
-
- src_stride = src_width * 4;
- dest_stride = dest_width * 4;
-
- b_alpha = (gint) (src_alpha * 255);
-
- /* adjust src pointers for negative sizes */
- if (xpos < 0) {
- src += -xpos * 4;
- src_width -= -xpos;
- xpos = 0;
- }
- if (ypos < 0) {
- src += -ypos * src_stride;
- src_height -= -ypos;
- ypos = 0;
- }
- /* adjust width/height if the src is bigger than dest */
- if (xpos + src_width > dest_width) {
- src_width = dest_width - xpos;
- }
- if (ypos + src_height > dest_height) {
- src_height = dest_height - ypos;
- }
-
- src_add = src_stride - (4 * src_width);
- dest_add = dest_stride - (4 * src_width);
-
- dest = dest + 4 * xpos + (ypos * dest_stride);
-
- /* we convert a square of 2x2 samples to generate 4 Luma and 2 chroma samples */
- for (i = 0; i < src_height; i++) {
- for (j = 0; j < src_width; j++) {
- alpha = (src[3] * b_alpha) >> 8;
- BLEND_MODE (dest[0], dest[1], dest[2], src[0], src[1], src[2],
- B, G, R, alpha);
- dest[0] = B;
- dest[1] = G;
- dest[2] = R;
- dest[3] = 0xff;
-
- src += 4;
- dest += 4;
- }
- src += src_add;
- dest += dest_add;
- }
-}
-
-#undef BLEND_MODE
-
-/* fill a buffer with a checkerboard pattern */
-void
-gst_videomixer_fill_bgra_checker (guint8 * dest, gint width, gint height)
-{
- gint i, j;
- static int tab[] = { 80, 160, 80, 160 };
-
- for (i = 0; i < height; i++) {
- for (j = 0; j < width; j++) {
- *dest++ = tab[((i & 0x8) >> 3) + ((j & 0x8) >> 3)]; /* blue */
- *dest++ = tab[((i & 0x8) >> 3) + ((j & 0x8) >> 3)]; /* green */
- *dest++ = tab[((i & 0x8) >> 3) + ((j & 0x8) >> 3)]; /* red */
- *dest++ = 0xFF; /* alpha */
- }
- }
+#define CREATE_FUNCTIONS(name, a, r, g, b) \
+void \
+gst_videomixer_blend_##name##_##name (guint8 * src, gint xpos, gint ypos, \
+ gint src_width, gint src_height, gdouble src_alpha, \
+ guint8 * dest, gint dest_width, gint dest_height) \
+{ \
+ gint alpha, b_alpha; \
+ gint i, j; \
+ gint src_stride, dest_stride; \
+ gint src_add, dest_add; \
+ gint B, G, R; \
+ \
+ src_stride = src_width * 4; \
+ dest_stride = dest_width * 4; \
+ \
+ b_alpha = (gint) (src_alpha * 255); \
+ \
+ /* adjust src pointers for negative sizes */ \
+ if (xpos < 0) { \
+ src += -xpos * 4; \
+ src_width -= -xpos; \
+ xpos = 0; \
+ } \
+ if (ypos < 0) { \
+ src += -ypos * src_stride; \
+ src_height -= -ypos; \
+ ypos = 0; \
+ } \
+ /* adjust width/height if the src is bigger than dest */ \
+ if (xpos + src_width > dest_width) { \
+ src_width = dest_width - xpos; \
+ } \
+ if (ypos + src_height > dest_height) { \
+ src_height = dest_height - ypos; \
+ } \
+ \
+ src_add = src_stride - (4 * src_width); \
+ dest_add = dest_stride - (4 * src_width); \
+ \
+ dest = dest + 4 * xpos + (ypos * dest_stride); \
+ \
+ /* we convert a square of 2x2 samples to generate 4 Luma and 2 chroma samples */ \
+ for (i = 0; i < src_height; i++) { \
+ for (j = 0; j < src_width; j++) { \
+ alpha = (src[a] * b_alpha) >> 8; \
+ BLEND_MODE (dest[b], dest[g], dest[r], src[b], src[g], src[r], \
+ B, G, R, alpha); \
+ dest[b] = B; \
+ dest[g] = G; \
+ dest[r] = R; \
+ dest[a] = 0xff; \
+ \
+ src += 4; \
+ dest += 4; \
+ } \
+ src += src_add; \
+ dest += dest_add; \
+ } \
+} \
+\
+/* fill a buffer with a checkerboard pattern */ \
+void \
+gst_videomixer_fill_##name##_checker (guint8 * dest, gint width, gint height) \
+{ \
+ gint i, j; \
+ static const int tab[] = { 80, 160, 80, 160 }; \
+ \
+ for (i = 0; i < height; i++) { \
+ for (j = 0; j < width; j++) { \
+ dest[b] = tab[((i & 0x8) >> 3) + ((j & 0x8) >> 3)]; /* blue */ \
+ dest[g] = tab[((i & 0x8) >> 3) + ((j & 0x8) >> 3)]; /* green */ \
+ dest[r] = tab[((i & 0x8) >> 3) + ((j & 0x8) >> 3)]; /* red */ \
+ dest[a] = 0xFF; /* alpha */ \
+ dest += 4; \
+ } \
+ } \
+} \
+\
+void \
+gst_videomixer_fill_##name##_color (guint8 * dest, gint width, gint height, \
+ gint colY, gint colU, gint colV) \
+{ \
+ gint red, green, blue; \
+ gint i, j; \
+ \
+ red = CLAMP (1.164 * (colY - 16) + 1.596 * (colV - 128), 0, 255); \
+ green = \
+ CLAMP (1.164 * (colY - 16) - 0.813 * (colV - 128) - 0.391 * (colU - 128), \
+ 0, 255); \
+ blue = CLAMP (1.164 * (colY - 16) + 2.018 * (colU - 128), 0, 255); \
+ \
+ for (i = 0; i < height; i++) { \
+ for (j = 0; j < width; j++) { \
+ dest[b] = blue; \
+ dest[g] = green; \
+ dest[r] = red; \
+ dest[a] = 0xff; \
+ dest += 4; \
+ } \
+ } \
}
-void
-gst_videomixer_fill_bgra_color (guint8 * dest, gint width, gint height,
- gint colY, gint colU, gint colV)
-{
- gint red, green, blue;
- gint i, j;
-
- red = CLAMP (1.164 * (colY - 16) + 1.596 * (colV - 128), 0, 255);
- green =
- CLAMP (1.164 * (colY - 16) - 0.813 * (colV - 128) - 0.391 * (colU - 128),
- 0, 255);
- blue = CLAMP (1.164 * (colY - 16) + 2.018 * (colU - 128), 0, 255);
-
- for (i = 0; i < height; i++) {
- for (j = 0; j < width; j++) {
- *dest++ = blue;
- *dest++ = green;
- *dest++ = red;
- *dest++ = 0xff;
- }
- }
-}
+CREATE_FUNCTIONS (argb, 0, 1, 2, 3);
+CREATE_FUNCTIONS (bgra, 3, 2, 1, 0);
size_t
gst_videomixer_calculate_frame_size_bgra (gint width, gint height)
{
return GST_ROUND_UP_4 (width) * height * 4;
}
+
+#undef BLEND_MODE
/**
* SECTION:element-videomixer
*
- * Videomixer can accept AYUV and BGRA video streams. For each of the requested
+ * Videomixer can accept AYUV, ARGB and BGRA video streams. For each of the requested
* sink pads it will compare the incoming geometry and framerate to define the
* output parameters. Indeed output video frames will have the geometry of the
* biggest incoming video stream and the framerate of the fastest incoming one.
*
- * All sink pads must be either AYUV or BGRA, but a mixture of them is not
+ * All sink pads must be either AYUV, ARGB or BGRA, but a mixture of them is not
* supported. The src pad will have the same colorspace as the sinks.
* No colorspace conversion is done.
*
void gst_videomixer_fill_ayuv_color (guint8 * dest, gint width, gint height,
gint colY, gint colU, gint colV);
size_t gst_videomixer_calculate_frame_size_ayuv (gint width, gint height);
-/*BGRA function definitions see file: blend_ayuv*/
+/*BGRA/ARGB function definitions see file: blend_bgra*/
void gst_videomixer_blend_bgra_bgra (guint8 * src, gint xpos, gint ypos,
gint src_width, gint src_height, gdouble src_alpha,
guint8 * dest, gint dest_width, gint dest_height);
void gst_videomixer_fill_bgra_checker (guint8 * dest, gint width, gint height);
void gst_videomixer_fill_bgra_color (guint8 * dest, gint width, gint height,
gint colY, gint colU, gint colV);
+void gst_videomixer_blend_argb_argb (guint8 * src, gint xpos, gint ypos,
+ gint src_width, gint src_height, gdouble src_alpha,
+ guint8 * dest, gint dest_width, gint dest_height);
+void gst_videomixer_fill_argb_checker (guint8 * dest, gint width, gint height);
+void gst_videomixer_fill_argb_color (guint8 * dest, gint width, gint height,
+ gint colY, gint colU, gint colV);
size_t gst_videomixer_calculate_frame_size_bgra (gint width, gint height);
/*I420 function definitions see file: blend_i420.c*/
void gst_videomixer_blend_i420_i420 (guint8 * src, gint xpos, gint ypos,
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") ";" GST_VIDEO_CAPS_BGRA ";"
- GST_VIDEO_CAPS_YUV ("I420"))
+ GST_VIDEO_CAPS_ARGB ";" GST_VIDEO_CAPS_YUV ("I420"))
);
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink_%d",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") ";" GST_VIDEO_CAPS_BGRA ";"
- GST_VIDEO_CAPS_YUV ("I420"))
+ GST_VIDEO_CAPS_ARGB ";" GST_VIDEO_CAPS_YUV ("I420"))
);
static void gst_videomixer_finalize (GObject * object);
static gboolean
gst_videomixer_setcaps (GstPad * pad, GstCaps * caps)
{
- GstElement *element;
- GstVideoMixer *mixer;
- GstStructure *str;
- element = gst_pad_get_parent_element (pad);
- g_assert (element);
- mixer = GST_VIDEO_MIXER (element);
- g_assert (mixer);
+ GstVideoMixer *mixer = GST_VIDEO_MIXER (gst_pad_get_parent_element (pad));
+ GstVideoFormat fmt;
+ gboolean ret = FALSE;
+
GST_INFO_OBJECT (mixer, "set src caps: \n%" GST_PTR_FORMAT, caps);
- str = gst_caps_get_structure (caps, 0);
-
- if (gst_structure_has_name (str, "video/x-raw-yuv")) {
- guint32 format;
- int ret;
- ret = gst_structure_get_fourcc (str, "format", &format);
- if (!ret) {
- mixer->blend = NULL;
- mixer->fill_checker = NULL;
- mixer->fill_color = NULL;
- mixer->calculate_frame_size = NULL;
- } else if (format == GST_STR_FOURCC ("AYUV")) {
+ mixer->blend = NULL;
+ mixer->fill_checker = NULL;
+ mixer->fill_color = NULL;
+ mixer->calculate_frame_size = NULL;
+
+ if (!gst_video_format_parse_caps (caps, &fmt, NULL, NULL))
+ goto done;
+
+ switch (fmt) {
+ case GST_VIDEO_FORMAT_AYUV:
mixer->blend = gst_videomixer_blend_ayuv_ayuv;
mixer->fill_checker = gst_videomixer_fill_ayuv_checker;
mixer->fill_color = gst_videomixer_fill_ayuv_color;
mixer->calculate_frame_size = gst_videomixer_calculate_frame_size_ayuv;
- } else if (format == GST_STR_FOURCC ("I420")) {
+ ret = TRUE;
+ break;
+ case GST_VIDEO_FORMAT_I420:
mixer->blend = gst_videomixer_blend_i420_i420;
mixer->fill_checker = gst_videomixer_fill_i420_checker;
mixer->fill_color = gst_videomixer_fill_i420_color;
mixer->calculate_frame_size = gst_videomixer_calculate_frame_size_i420;
- } else {
- mixer->blend = NULL;
- mixer->fill_checker = NULL;
- mixer->fill_color = NULL;
- mixer->calculate_frame_size = NULL;
- }
- } else if (gst_structure_has_name (str, "video/x-raw-rgb")) {
- mixer->blend = gst_videomixer_blend_bgra_bgra;
- mixer->fill_checker = gst_videomixer_fill_bgra_checker;
- mixer->fill_color = gst_videomixer_fill_bgra_color;
- mixer->calculate_frame_size = gst_videomixer_calculate_frame_size_bgra;
- } else {
- mixer->blend = NULL;
- mixer->fill_checker = NULL;
- mixer->fill_color = NULL;
- mixer->calculate_frame_size = NULL;
+ ret = TRUE;
+ break;
+ case GST_VIDEO_FORMAT_BGRA:
+ mixer->blend = gst_videomixer_blend_bgra_bgra;
+ mixer->fill_checker = gst_videomixer_fill_bgra_checker;
+ mixer->fill_color = gst_videomixer_fill_bgra_color;
+ mixer->calculate_frame_size = gst_videomixer_calculate_frame_size_bgra;
+ ret = TRUE;
+ break;
+ case GST_VIDEO_FORMAT_ARGB:
+ mixer->blend = gst_videomixer_blend_argb_argb;
+ mixer->fill_checker = gst_videomixer_fill_argb_checker;
+ mixer->fill_color = gst_videomixer_fill_argb_color;
+ mixer->calculate_frame_size = gst_videomixer_calculate_frame_size_bgra;
+ ret = TRUE;
+ break;
+ default:
+ break;
}
- gst_object_unref (element);
- return TRUE;
+done:
+ gst_object_unref (mixer);
+
+ return ret;
}
static GstPad *
projects / platform / upstream / gst-plugins-good.git / commitdiff