* Boston, MA 02111-1307, USA.
*/
+/**
+ * SECTION:element-smpte
+ *
+ * smpte can accept I420 video streams with the same width, height and
+ * framerate. The two incomming buffers are blended together using an effect
+ * specific alpha mask.
+ *
+ * The #GstSmpte:depth property defines the presision in bits of the mask. A
+ * higher presision will create a mask with smoother gradients in order to avoid
+ * banding.
+ *
+ * <refsect2>
+ * <title>Sample pipelines</title>
+ * |[
+ * gst-launch -v videotestsrc pattern=1 ! smpte name=s border=20000 type=234 duration=2000000000 ! ffmpegcolorspace ! ximagesink videotestsrc ! s.
+ * ]| A pipeline to demonstrate the smpte transition.
+ * It shows a pinwheel transition a from a snow videotestsrc to an smpte
+ * pattern videotestsrc. The transition will take 2 seconds to complete. The
+ * edges of the transition are smoothed with a 20000 big border.
+ * </refsect2>
+ */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
-#include <gstsmpte.h>
+#include "gstsmpte.h"
#include <gst/video/video.h>
#include "paint.h"
-/* elementfactory information */
-static GstElementDetails smpte_details = {
- "SMPTE transitions",
- "Filter/Editor/Video",
- "Apply the standard SMPTE transitions on video images",
- "Wim Taymans <wim.taymans@chello.be>"
-};
+GST_DEBUG_CATEGORY_STATIC (gst_smpte_debug);
+#define GST_CAT_DEFAULT gst_smpte_debug
static GstStaticPadTemplate gst_smpte_src_template =
-GST_STATIC_PAD_TEMPLATE (
- "src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (
- GST_VIDEO_CAPS_YUV("I420")
- )
-);
+GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")
+ )
+ );
static GstStaticPadTemplate gst_smpte_sink1_template =
-GST_STATIC_PAD_TEMPLATE (
- "sink1",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (
- GST_VIDEO_CAPS_YUV("I420")
- )
-);
+GST_STATIC_PAD_TEMPLATE ("sink1",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")
+ )
+ );
static GstStaticPadTemplate gst_smpte_sink2_template =
-GST_STATIC_PAD_TEMPLATE (
- "sink2",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (
- GST_VIDEO_CAPS_YUV("I420")
- )
-);
+GST_STATIC_PAD_TEMPLATE ("sink2",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")
+ )
+ );
/* SMPTE signals and args */
-enum {
+enum
+{
/* FILL ME */
LAST_SIGNAL
};
-enum {
- ARG_0,
- ARG_TYPE,
- ARG_BORDER,
- ARG_DEPTH,
- ARG_FPS,
+#define DEFAULT_PROP_TYPE 1
+#define DEFAULT_PROP_BORDER 0
+#define DEFAULT_PROP_DEPTH 16
+#define DEFAULT_PROP_FPS 0.
+#define DEFAULT_PROP_DURATION GST_SECOND
+#define DEFAULT_PROP_INVERT FALSE
+
+enum
+{
+ PROP_0,
+ PROP_TYPE,
+ PROP_BORDER,
+ PROP_DEPTH,
+ PROP_FPS,
+ PROP_DURATION,
+ PROP_INVERT,
+ PROP_LAST,
};
+#define I420_Y_ROWSTRIDE(width) (GST_ROUND_UP_4(width))
+#define I420_U_ROWSTRIDE(width) (GST_ROUND_UP_8(width)/2)
+#define I420_V_ROWSTRIDE(width) ((GST_ROUND_UP_8(I420_Y_ROWSTRIDE(width)))/2)
+
+#define I420_Y_OFFSET(w,h) (0)
+#define I420_U_OFFSET(w,h) (I420_Y_OFFSET(w,h)+(I420_Y_ROWSTRIDE(w)*GST_ROUND_UP_2(h)))
+#define I420_V_OFFSET(w,h) (I420_U_OFFSET(w,h)+(I420_U_ROWSTRIDE(w)*GST_ROUND_UP_2(h)/2))
+
+#define I420_SIZE(w,h) (I420_V_OFFSET(w,h)+(I420_V_ROWSTRIDE(w)*GST_ROUND_UP_2(h)/2))
+
+
#define GST_TYPE_SMPTE_TRANSITION_TYPE (gst_smpte_transition_type_get_type())
static GType
-gst_smpte_transition_type_get_type (void)
+gst_smpte_transition_type_get_type (void)
{
static GType smpte_transition_type = 0;
GEnumValue *smpte_transitions;
if (!smpte_transition_type) {
const GList *definitions;
- gint i=0;
+ gint i = 0;
definitions = gst_mask_get_definitions ();
- smpte_transitions = g_new0 (GEnumValue, g_list_length ((GList *)definitions)+1);
+ smpte_transitions =
+ g_new0 (GEnumValue, g_list_length ((GList *) definitions) + 1);
while (definitions) {
GstMaskDefinition *definition = (GstMaskDefinition *) definitions->data;
+
definitions = g_list_next (definitions);
smpte_transitions[i].value = definition->type;
- smpte_transitions[i].value_name = definition->short_name;
- smpte_transitions[i].value_nick = definition->long_name;
-
+ /* older GLib versions have the two fields as non-const, hence the cast */
+ smpte_transitions[i].value_nick = (gchar *) definition->short_name;
+ smpte_transitions[i].value_name = (gchar *) definition->long_name;
+
i++;
}
- smpte_transition_type =
- g_enum_register_static ("GstSMPTETransitionType", smpte_transitions);
+ smpte_transition_type =
+ g_enum_register_static ("GstSMPTETransitionType", smpte_transitions);
}
return smpte_transition_type;
-}
+}
+
+static void gst_smpte_class_init (GstSMPTEClass * klass);
+static void gst_smpte_base_init (GstSMPTEClass * klass);
+static void gst_smpte_init (GstSMPTE * smpte);
+static void gst_smpte_finalize (GstSMPTE * smpte);
-static void gst_smpte_class_init (GstSMPTEClass *klass);
-static void gst_smpte_base_init (GstSMPTEClass *klass);
-static void gst_smpte_init (GstSMPTE *smpte);
+static GstFlowReturn gst_smpte_collected (GstCollectPads2 * pads,
+ GstSMPTE * smpte);
-static void gst_smpte_loop (GstElement *element);
+static void gst_smpte_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_smpte_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
-static void gst_smpte_set_property (GObject *object, guint prop_id,
- const GValue *value, GParamSpec *pspec);
-static void gst_smpte_get_property (GObject *object, guint prop_id,
- GValue *value, GParamSpec *pspec);
+static GstStateChangeReturn gst_smpte_change_state (GstElement * element,
+ GstStateChange transition);
static GstElementClass *parent_class = NULL;
+
/*static guint gst_smpte_signals[LAST_SIGNAL] = { 0 }; */
static GType
if (!smpte_type) {
static const GTypeInfo smpte_info = {
- sizeof(GstSMPTEClass),
- (GBaseInitFunc)gst_smpte_base_init,
+ sizeof (GstSMPTEClass),
+ (GBaseInitFunc) gst_smpte_base_init,
NULL,
- (GClassInitFunc)gst_smpte_class_init,
+ (GClassInitFunc) gst_smpte_class_init,
NULL,
NULL,
- sizeof(GstSMPTE),
+ sizeof (GstSMPTE),
0,
- (GInstanceInitFunc)gst_smpte_init,
+ (GInstanceInitFunc) gst_smpte_init,
};
- smpte_type = g_type_register_static(GST_TYPE_ELEMENT, "GstSMPTE", &smpte_info, 0);
+
+ smpte_type =
+ g_type_register_static (GST_TYPE_ELEMENT, "GstSMPTE", &smpte_info, 0);
}
return smpte_type;
}
static void
-gst_smpte_base_init (GstSMPTEClass *klass)
+gst_smpte_base_init (GstSMPTEClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get(&gst_smpte_sink1_template));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get(&gst_smpte_sink2_template));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get(&gst_smpte_src_template));
- gst_element_class_set_details (element_class, &smpte_details);
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_smpte_sink1_template));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_smpte_sink2_template));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_smpte_src_template));
+ gst_element_class_set_details_simple (element_class, "SMPTE transitions",
+ "Filter/Editor/Video",
+ "Apply the standard SMPTE transitions on video images",
+ "Wim Taymans <wim.taymans@chello.be>");
}
static void
-gst_smpte_class_init (GstSMPTEClass *klass)
+gst_smpte_class_init (GstSMPTEClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
- gobject_class = (GObjectClass*)klass;
- gstelement_class = (GstElementClass*)klass;
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
- parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+ parent_class = g_type_class_peek_parent (klass);
gobject_class->set_property = gst_smpte_set_property;
gobject_class->get_property = gst_smpte_get_property;
+ gobject_class->finalize = (GObjectFinalizeFunc) gst_smpte_finalize;
_gst_mask_init ();
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TYPE,
- g_param_spec_enum ("type", "Type", "The type of transition to use",
- GST_TYPE_SMPTE_TRANSITION_TYPE, 1, G_PARAM_READWRITE));
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FPS,
- g_param_spec_float ("fps", "FPS", "Frames per second if no input files are given",
- 0., G_MAXFLOAT, 25., G_PARAM_READWRITE));
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BORDER,
- g_param_spec_int ("border", "Border", "The border width of the transition",
- 0, G_MAXINT, 0, G_PARAM_READWRITE));
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEPTH,
- g_param_spec_int ("depth", "Depth", "Depth of the mask in bits",
- 1, 24, 16, G_PARAM_READWRITE));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TYPE,
+ g_param_spec_enum ("type", "Type", "The type of transition to use",
+ GST_TYPE_SMPTE_TRANSITION_TYPE, DEFAULT_PROP_TYPE,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_FPS,
+ g_param_spec_float ("fps", "FPS",
+ "Frames per second if no input files are given (deprecated)", 0.,
+ G_MAXFLOAT, DEFAULT_PROP_FPS,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BORDER,
+ g_param_spec_int ("border", "Border",
+ "The border width of the transition", 0, G_MAXINT,
+ DEFAULT_PROP_BORDER, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DEPTH,
+ g_param_spec_int ("depth", "Depth", "Depth of the mask in bits", 1, 24,
+ DEFAULT_PROP_DEPTH, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DURATION,
+ g_param_spec_uint64 ("duration", "Duration",
+ "Duration of the transition effect in nanoseconds", 0, G_MAXUINT64,
+ DEFAULT_PROP_DURATION, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_INVERT,
+ g_param_spec_boolean ("invert", "Invert",
+ "Invert transition mask", DEFAULT_PROP_INVERT,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_smpte_change_state);
}
-/* wht yel cya grn mag red blu blk -I Q */
-static int y_colors[] = { 255, 226, 179, 150, 105, 76, 29, 16, 16, 0 };
-static int u_colors[] = { 128, 0, 170, 46, 212, 85, 255, 128, 0, 128 };
-static int v_colors[] = { 128, 155, 0, 21, 235, 255, 107, 128, 128, 255 };
+/* wht yel cya grn mag red blu blk -I Q */
+static const int y_colors[] = { 255, 226, 179, 150, 105, 76, 29, 16, 16, 0 };
+static const int u_colors[] = { 128, 0, 170, 46, 212, 85, 255, 128, 0, 128 };
+static const int v_colors[] = { 128, 155, 0, 21, 235, 255, 107, 128, 128, 255 };
static void
-fill_i420 (guint8 *data, gint width, gint height, gint color)
+fill_i420 (guint8 * data, gint width, gint height, gint color)
{
- gint size = width * height, size4 = size >> 2;
+ gint size = I420_Y_ROWSTRIDE (width) * GST_ROUND_UP_2 (height);
+ gint size4 = size >> 2;
guint8 *yp = data;
- guint8 *up = data + size;
- guint8 *vp = data + size + size4;
-
+ guint8 *up = data + I420_U_OFFSET (width, height);
+ guint8 *vp = data + I420_V_OFFSET (width, height);
+
memset (yp, y_colors[color], size);
memset (up, u_colors[color], size4);
memset (vp, v_colors[color], size4);
}
static gboolean
-gst_smpte_update_mask (GstSMPTE *smpte, gint type, gint depth, gint width, gint height)
+gst_smpte_update_mask (GstSMPTE * smpte, gint type, gboolean invert,
+ gint depth, gint width, gint height)
{
GstMask *newmask;
- newmask = gst_mask_factory_new (type, depth, width, height);
+ if (smpte->mask) {
+ if (smpte->type == type &&
+ smpte->invert == invert &&
+ smpte->depth == depth &&
+ smpte->width == width && smpte->height == height)
+ return TRUE;
+ }
+
+ newmask = gst_mask_factory_new (type, invert, depth, width, height);
if (newmask) {
if (smpte->mask) {
gst_mask_destroy (smpte->mask);
}
smpte->mask = newmask;
smpte->type = type;
+ smpte->invert = invert;
smpte->depth = depth;
smpte->width = width;
smpte->height = height;
}
static gboolean
-gst_smpte_sinkconnect (GstPad *pad, const GstCaps *caps)
+gst_smpte_setcaps (GstPad * pad, GstCaps * caps)
{
GstSMPTE *smpte;
GstStructure *structure;
gboolean ret;
- smpte = GST_SMPTE (gst_pad_get_parent (pad));
+ smpte = GST_SMPTE (GST_PAD_PARENT (pad));
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "width", &smpte->width);
ret &= gst_structure_get_int (structure, "height", &smpte->height);
- ret &= gst_structure_get_double (structure, "framerate", &smpte->fps);
- if (!ret) return GST_PAD_LINK_REFUSED;
+ ret &= gst_structure_get_fraction (structure, "framerate",
+ &smpte->fps_num, &smpte->fps_denom);
+ if (!ret)
+ return FALSE;
+
+ /* for backward compat, we store these here */
+ smpte->fps = ((gdouble) smpte->fps_num) / smpte->fps_denom;
- gst_smpte_update_mask (smpte, smpte->type, smpte->depth, smpte->width, smpte->height);
+ /* figure out the duration in frames */
+ smpte->end_position = gst_util_uint64_scale (smpte->duration,
+ smpte->fps_num, GST_SECOND * smpte->fps_denom);
- /* forward to the next plugin */
- return gst_pad_try_set_caps(smpte->srcpad, caps);
+ GST_DEBUG_OBJECT (smpte, "duration: %d frames", smpte->end_position);
+
+ ret =
+ gst_smpte_update_mask (smpte, smpte->type, smpte->invert, smpte->depth,
+ smpte->width, smpte->height);
+
+ return ret;
}
-static void
-gst_smpte_init (GstSMPTE *smpte)
+static void
+gst_smpte_init (GstSMPTE * smpte)
{
- smpte->sinkpad1 = gst_pad_new_from_template (
- gst_static_pad_template_get(&gst_smpte_sink1_template), "sink1");
- gst_pad_set_link_function (smpte->sinkpad1, gst_smpte_sinkconnect);
+ smpte->sinkpad1 =
+ gst_pad_new_from_static_template (&gst_smpte_sink1_template, "sink1");
+ gst_pad_set_setcaps_function (smpte->sinkpad1,
+ GST_DEBUG_FUNCPTR (gst_smpte_setcaps));
+ gst_pad_set_getcaps_function (smpte->sinkpad1,
+ GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
gst_element_add_pad (GST_ELEMENT (smpte), smpte->sinkpad1);
- smpte->sinkpad2 = gst_pad_new_from_template (
- gst_static_pad_template_get(&gst_smpte_sink2_template), "sink2");
- gst_pad_set_link_function (smpte->sinkpad2, gst_smpte_sinkconnect);
+ smpte->sinkpad2 =
+ gst_pad_new_from_static_template (&gst_smpte_sink2_template, "sink2");
+ gst_pad_set_setcaps_function (smpte->sinkpad2,
+ GST_DEBUG_FUNCPTR (gst_smpte_setcaps));
+ gst_pad_set_getcaps_function (smpte->sinkpad2,
+ GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
gst_element_add_pad (GST_ELEMENT (smpte), smpte->sinkpad2);
- smpte->srcpad = gst_pad_new_from_template (
- gst_static_pad_template_get(&gst_smpte_src_template), "src");
+ smpte->srcpad =
+ gst_pad_new_from_static_template (&gst_smpte_src_template, "src");
gst_element_add_pad (GST_ELEMENT (smpte), smpte->srcpad);
- gst_element_set_loop_function (GST_ELEMENT (smpte), gst_smpte_loop);
+ smpte->collect = gst_collect_pads2_new ();
+ gst_collect_pads2_set_function (smpte->collect,
+ (GstCollectPads2Function) GST_DEBUG_FUNCPTR (gst_smpte_collected), smpte);
+ gst_collect_pads2_start (smpte->collect);
+
+ gst_collect_pads2_add_pad (smpte->collect, smpte->sinkpad1,
+ sizeof (GstCollectData2));
+ gst_collect_pads2_add_pad (smpte->collect, smpte->sinkpad2,
+ sizeof (GstCollectData2));
+
+ smpte->fps = DEFAULT_PROP_FPS;
+ smpte->type = DEFAULT_PROP_TYPE;
+ smpte->border = DEFAULT_PROP_BORDER;
+ smpte->depth = DEFAULT_PROP_DEPTH;
+ smpte->duration = DEFAULT_PROP_DURATION;
+ smpte->invert = DEFAULT_PROP_INVERT;
+ smpte->fps_num = 0;
+ smpte->fps_denom = 1;
+}
- smpte->width = 320;
- smpte->height = 200;
- smpte->fps = 25.;
- smpte->duration = 64;
+static void
+gst_smpte_finalize (GstSMPTE * smpte)
+{
+ if (smpte->collect) {
+ gst_object_unref (smpte->collect);
+ }
+
+ G_OBJECT_CLASS (parent_class)->finalize ((GObject *) smpte);
+}
+
+static void
+gst_smpte_reset (GstSMPTE * smpte)
+{
+ smpte->width = -1;
+ smpte->height = -1;
smpte->position = 0;
- smpte->type = 1;
- smpte->border = 0;
- smpte->depth = 16;
- gst_smpte_update_mask (smpte, smpte->type, smpte->depth, smpte->width, smpte->height);
+ smpte->end_position = 0;
}
static void
-gst_smpte_blend_i420 (guint8 *in1, guint8 *in2, guint8 *out, GstMask *mask,
- gint width, gint height, gint border, gint pos)
+gst_smpte_blend_i420 (guint8 * in1, guint8 * in2, guint8 * out, GstMask * mask,
+ gint width, gint height, gint border, gint pos)
{
guint32 *maskp;
gint value;
gint i, j;
gint min, max;
- guint8 *in1u, *in1v, *in2u, *in2v, *outu, *outv;
- gint lumsize = width * height;
- gint chromsize = lumsize >> 2;
+ guint8 *in1u, *in1v, *in2u, *in2v, *outu, *outv;
+ gint uoffset, voffset, ystr, ustr, vstr;
- if (border == 0) border++;
+ if (border == 0)
+ border++;
- min = pos - border;
+ min = pos - border;
max = pos;
- in1u = in1 + lumsize; in1v = in1u + chromsize;
- in2u = in2 + lumsize; in2v = in2u + chromsize;
- outu = out + lumsize; outv = outu + chromsize;
-
+ uoffset = I420_U_OFFSET (width, height);
+ voffset = I420_V_OFFSET (width, height);
+
+ ystr = I420_Y_ROWSTRIDE (width);
+ ustr = I420_U_ROWSTRIDE (width);
+ vstr = I420_V_ROWSTRIDE (width);
+
+ in1u = in1 + uoffset;
+ in1v = in1 + voffset;
+ in2u = in2 + uoffset;
+ in2v = in2 + voffset;
+ outu = out + uoffset;
+ outv = out + voffset;
+
maskp = mask->data;
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
value = *maskp++;
value = ((CLAMP (value, min, max) - min) << 8) / border;
-
- *out++ = ((*in1++ * value) + (*in2++ * (256 - value))) >> 8;
+
+ out[j] = ((in1[j] * value) + (in2[j] * (256 - value))) >> 8;
if (!(i & 1) && !(j & 1)) {
- *outu++ = ((*in1u++ * value) + (*in2u++ * (256 - value))) >> 8;
- *outv++ = ((*in1v++ * value) + (*in2v++ * (256 - value))) >> 8;
+ outu[j / 2] =
+ ((in1u[j / 2] * value) + (in2u[j / 2] * (256 - value))) >> 8;
+ outv[j / 2] =
+ ((in1v[j / 2] * value) + (in2v[j / 2] * (256 - value))) >> 8;
}
}
+ out += ystr;
+ in1 += ystr;
+ in2 += ystr;
+ if (!(i & 1)) {
+ outu += ustr;
+ in1u += ustr;
+ in2u += ustr;
+ outv += vstr;
+ in1v += vstr;
+ in2v += vstr;
+ }
}
}
-static void
-gst_smpte_loop (GstElement *element)
+static GstFlowReturn
+gst_smpte_collected (GstCollectPads2 * pads, GstSMPTE * smpte)
{
- GstSMPTE *smpte;
GstBuffer *outbuf;
GstClockTime ts;
GstBuffer *in1 = NULL, *in2 = NULL;
+ GSList *collected;
- smpte = GST_SMPTE (element);
+ if (G_UNLIKELY (smpte->fps_num == 0))
+ goto not_negotiated;
- ts = smpte->position * GST_SECOND / smpte->fps;
+ if (!GST_PAD_CAPS (smpte->sinkpad1) || !GST_PAD_CAPS (smpte->sinkpad2))
+ goto not_negotiated;
- while (GST_PAD_IS_USABLE (smpte->sinkpad1) && in1 == NULL) {
- in1 = GST_BUFFER (gst_pad_pull (smpte->sinkpad1));
- if (GST_IS_EVENT (in1)) {
- gst_pad_push (smpte->srcpad, GST_DATA (in1));
- in1 = NULL;
- }
- else
- ts = GST_BUFFER_TIMESTAMP (in1);
- }
- if (GST_PAD_IS_USABLE (smpte->sinkpad2) && in2 == NULL) {
- in2 = GST_BUFFER (gst_pad_pull (smpte->sinkpad2));
- if (GST_IS_EVENT (in2)) {
- gst_pad_push (smpte->srcpad, GST_DATA (in2));
- in2 = NULL;
- }
- else
- ts = GST_BUFFER_TIMESTAMP (in2);
+ ts = gst_util_uint64_scale_int (smpte->position * GST_SECOND,
+ smpte->fps_denom, smpte->fps_num);
+
+ for (collected = pads->data; collected; collected = g_slist_next (collected)) {
+ GstCollectData2 *data;
+
+ data = (GstCollectData2 *) collected->data;
+
+ if (data->pad == smpte->sinkpad1)
+ in1 = gst_collect_pads2_pop (pads, data);
+ else if (data->pad == smpte->sinkpad2)
+ in2 = gst_collect_pads2_pop (pads, data);
}
if (in1 == NULL) {
- in1 = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
+ /* if no input, make picture black */
+ in1 = gst_buffer_new_and_alloc (I420_SIZE (smpte->width, smpte->height));
fill_i420 (GST_BUFFER_DATA (in1), smpte->width, smpte->height, 7);
}
if (in2 == NULL) {
- in2 = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
+ /* if no input, make picture white */
+ in2 = gst_buffer_new_and_alloc (I420_SIZE (smpte->width, smpte->height));
fill_i420 (GST_BUFFER_DATA (in2), smpte->width, smpte->height, 0);
}
- if (smpte->position < smpte->duration) {
- outbuf = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
+ if (GST_BUFFER_SIZE (in1) != GST_BUFFER_SIZE (in2))
+ goto input_formats_do_not_match;
+
+ if (smpte->position < smpte->end_position) {
+ outbuf = gst_buffer_new_and_alloc (I420_SIZE (smpte->width, smpte->height));
+ /* set caps if not done yet */
if (!GST_PAD_CAPS (smpte->srcpad)) {
GstCaps *caps;
- caps = gst_caps_copy (gst_static_caps_get (
- &gst_smpte_src_template.static_caps));
- gst_caps_set_simple (caps,
- "width", G_TYPE_INT, smpte->width,
- "height", G_TYPE_INT, smpte->height,
- "framerate", G_TYPE_DOUBLE, smpte->fps, NULL);
-
- if (!gst_pad_try_set_caps (smpte->srcpad, caps)) {
- GST_ELEMENT_ERROR (smpte, CORE, NEGOTIATION, (NULL), (NULL));
- return;
- }
+
+ caps =
+ gst_caps_copy (gst_static_caps_get
+ (&gst_smpte_src_template.static_caps));
+ gst_caps_set_simple (caps, "width", G_TYPE_INT, smpte->width, "height",
+ G_TYPE_INT, smpte->height, "framerate", GST_TYPE_FRACTION,
+ smpte->fps_num, smpte->fps_denom, NULL);
+
+ gst_pad_set_caps (smpte->srcpad, caps);
+
+ gst_pad_push_event (smpte->srcpad,
+ gst_event_new_new_segment_full (FALSE,
+ 1.0, 1.0, GST_FORMAT_TIME, 0, -1, 0));
+
}
+ gst_buffer_set_caps (outbuf, GST_PAD_CAPS (smpte->srcpad));
- gst_smpte_blend_i420 (GST_BUFFER_DATA (in1),
- GST_BUFFER_DATA (in2),
- GST_BUFFER_DATA (outbuf),
- smpte->mask, smpte->width, smpte->height,
- smpte->border,
- ((1 << smpte->depth) + smpte->border) *
- smpte->position / smpte->duration);
- }
- else {
+ gst_smpte_blend_i420 (GST_BUFFER_DATA (in1),
+ GST_BUFFER_DATA (in2),
+ GST_BUFFER_DATA (outbuf),
+ smpte->mask, smpte->width, smpte->height,
+ smpte->border,
+ ((1 << smpte->depth) + smpte->border) *
+ smpte->position / smpte->end_position);
+
+ } else {
outbuf = in2;
gst_buffer_ref (in2);
}
gst_buffer_unref (in2);
GST_BUFFER_TIMESTAMP (outbuf) = ts;
- gst_pad_push (smpte->srcpad, GST_DATA (outbuf));
+
+ return gst_pad_push (smpte->srcpad, outbuf);
+
+ /* ERRORS */
+not_negotiated:
+ {
+ GST_ELEMENT_ERROR (smpte, CORE, NEGOTIATION, (NULL),
+ ("No input format negotiated"));
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
+input_formats_do_not_match:
+ {
+ GST_ELEMENT_ERROR (smpte, CORE, NEGOTIATION, (NULL),
+ ("input formats don't match: %" GST_PTR_FORMAT " vs. %" GST_PTR_FORMAT,
+ GST_PAD_CAPS (smpte->sinkpad1), GST_PAD_CAPS (smpte->sinkpad2)));
+ return GST_FLOW_ERROR;
+ }
}
static void
-gst_smpte_set_property (GObject *object, guint prop_id,
- const GValue *value, GParamSpec *pspec)
+gst_smpte_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
{
GstSMPTE *smpte;
- smpte = GST_SMPTE(object);
+ smpte = GST_SMPTE (object);
switch (prop_id) {
- case ARG_TYPE:
- {
- gint type = g_value_get_enum (value);
-
- gst_smpte_update_mask (smpte, type, smpte->depth,
- smpte->width, smpte->height);
+ case PROP_TYPE:
+ smpte->type = g_value_get_enum (value);
break;
- }
- case ARG_BORDER:
+ case PROP_BORDER:
smpte->border = g_value_get_int (value);
break;
- case ARG_FPS:
+ case PROP_FPS:
smpte->fps = g_value_get_float (value);
break;
- case ARG_DEPTH:
- {
- gint depth = g_value_get_int (value);
-
- gst_smpte_update_mask (smpte, smpte->type, depth,
- smpte->width, smpte->height);
+ case PROP_DEPTH:
+ smpte->depth = g_value_get_int (value);
+ break;
+ case PROP_DURATION:
+ smpte->duration = g_value_get_uint64 (value);
+ break;
+ case PROP_INVERT:
+ smpte->invert = g_value_get_boolean (value);
break;
- }
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
static void
-gst_smpte_get_property (GObject *object, guint prop_id,
- GValue *value, GParamSpec *pspec)
+gst_smpte_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
{
GstSMPTE *smpte;
- smpte = GST_SMPTE(object);
+ smpte = GST_SMPTE (object);
switch (prop_id) {
- case ARG_TYPE:
- if (smpte->mask) {
- g_value_set_enum (value, smpte->mask->type);
- }
+ case PROP_TYPE:
+ g_value_set_enum (value, smpte->type);
break;
- case ARG_FPS:
+ case PROP_FPS:
g_value_set_float (value, smpte->fps);
break;
- case ARG_BORDER:
+ case PROP_BORDER:
g_value_set_int (value, smpte->border);
break;
- case ARG_DEPTH:
+ case PROP_DEPTH:
g_value_set_int (value, smpte->depth);
break;
+ case PROP_DURATION:
+ g_value_set_uint64 (value, smpte->duration);
+ break;
+ case PROP_INVERT:
+ g_value_set_boolean (value, smpte->invert);
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
-
-static gboolean
-plugin_init (GstPlugin *plugin)
+static GstStateChangeReturn
+gst_smpte_change_state (GstElement * element, GstStateChange transition)
{
- return gst_element_register(plugin, "smpte",
- GST_RANK_NONE, GST_TYPE_SMPTE);
+ GstStateChangeReturn ret;
+ GstSMPTE *smpte;
+
+ smpte = GST_SMPTE (element);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_READY_TO_PAUSED:
+ gst_smpte_reset (smpte);
+ GST_LOG_OBJECT (smpte, "starting collectpads");
+ gst_collect_pads2_start (smpte->collect);
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ GST_LOG_OBJECT (smpte, "stopping collectpads");
+ gst_collect_pads2_stop (smpte->collect);
+ break;
+ default:
+ break;
+ }
+
+ ret = parent_class->change_state (element, transition);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ gst_smpte_reset (smpte);
+ break;
+ default:
+ break;
+ }
+ return ret;
}
-GST_PLUGIN_DEFINE (
- GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- "smpte",
- "Apply the standard SMPTE transitions on video images",
- plugin_init,
- VERSION,
- "LGPL",
- GST_PACKAGE,
- GST_ORIGIN
-)
+gboolean
+gst_smpte_plugin_init (GstPlugin * plugin)
+{
+ GST_DEBUG_CATEGORY_INIT (gst_smpte_debug, "smpte", 0,
+ "SMPTE transition effect");
+
+ return gst_element_register (plugin, "smpte", GST_RANK_NONE, GST_TYPE_SMPTE);
+}
projects / platform / upstream / gstreamer.git / blobdiff