#include "config.h"
#endif
-#include <string.h>
-/*#define DEBUG_ENABLED */
#include "gstvideofilter.h"
GST_DEBUG_CATEGORY_STATIC (gst_videofilter_debug);
#define GST_CAT_DEFAULT gst_videofilter_debug
-/* GstVideofilter signals and args */
-enum
-{
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum
-{
- ARG_0,
- ARG_METHOD
- /* FILL ME */
-};
-
-static void gst_videofilter_base_init (gpointer g_class);
static void gst_videofilter_class_init (gpointer g_class, gpointer class_data);
static void gst_videofilter_init (GTypeInstance * instance, gpointer g_class);
-static void gst_videofilter_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_videofilter_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static GstFlowReturn gst_videofilter_chain (GstPad * pad, GstBuffer * buffer);
-GstCaps *gst_videofilter_class_get_capslist (GstVideofilterClass * klass);
-
-static GstElementClass *parent_class = NULL;
+static GstBaseTransformClass *parent_class = NULL;
GType
gst_videofilter_get_type (void)
if (!videofilter_type) {
static const GTypeInfo videofilter_info = {
sizeof (GstVideofilterClass),
- gst_videofilter_base_init,
+ NULL,
NULL,
gst_videofilter_class_init,
NULL,
gst_videofilter_init,
};
- videofilter_type = g_type_register_static (GST_TYPE_ELEMENT,
+ videofilter_type = g_type_register_static (GST_TYPE_BASE_TRANSFORM,
"GstVideofilter", &videofilter_info, G_TYPE_FLAG_ABSTRACT);
}
return videofilter_type;
}
static void
-gst_videofilter_base_init (gpointer g_class)
-{
- static GstElementDetails videofilter_details = {
- "Video scaler",
- "Filter/Effect/Video",
- "Resizes video",
- "David Schleef <ds@schleef.org>"
- };
- GstVideofilterClass *klass = (GstVideofilterClass *) g_class;
- GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
- klass->formats = g_ptr_array_new ();
-
- gst_element_class_set_details (element_class, &videofilter_details);
-}
-
-static void
gst_videofilter_class_init (gpointer g_class, gpointer class_data)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
+ GstBaseTransformClass *trans_class;
GstVideofilterClass *klass;
klass = (GstVideofilterClass *) g_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
+ trans_class = (GstBaseTransformClass *) klass;
- parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
-
- gobject_class->set_property = gst_videofilter_set_property;
- gobject_class->get_property = gst_videofilter_get_property;
+ parent_class = g_type_class_peek_parent (klass);
GST_DEBUG_CATEGORY_INIT (gst_videofilter_debug, "videofilter", 0,
"videofilter");
}
-static GstStructure *
-gst_videofilter_format_get_structure (GstVideofilterFormat * format)
-{
- unsigned int fourcc;
- GstStructure *structure;
-
- if (format->filter_func == NULL)
- return NULL;
-
- fourcc =
- GST_MAKE_FOURCC (format->fourcc[0], format->fourcc[1], format->fourcc[2],
- format->fourcc[3]);
-
- if (format->depth) {
- structure = gst_structure_new ("video/x-raw-rgb",
- "depth", G_TYPE_INT, format->depth,
- "bpp", G_TYPE_INT, format->bpp,
- "endianness", G_TYPE_INT, format->endianness,
- "red_mask", G_TYPE_INT, format->red_mask,
- "green_mask", G_TYPE_INT, format->green_mask,
- "blue_mask", G_TYPE_INT, format->blue_mask, NULL);
- } else {
- structure = gst_structure_new ("video/x-raw-yuv",
- "format", GST_TYPE_FOURCC, fourcc, NULL);
- }
-
- gst_structure_set (structure,
- "height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
- "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
- "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
-
- return structure;
-}
-
-GstCaps *
-gst_videofilter_class_get_capslist (GstVideofilterClass * klass)
-{
- GstCaps *caps;
- GstStructure *structure;
- int i;
-
- caps = gst_caps_new_empty ();
- for (i = 0; i < klass->formats->len; i++) {
- structure =
- gst_videofilter_format_get_structure (g_ptr_array_index (klass->formats,
- i));
- gst_caps_append_structure (caps, structure);
- }
-
- return caps;
-}
-
-static GstCaps *
-gst_videofilter_getcaps (GstPad * pad)
-{
- GstVideofilter *videofilter;
- GstVideofilterClass *klass;
- GstCaps *caps;
- GstPad *peer;
- int i;
-
- videofilter = GST_VIDEOFILTER (GST_PAD_PARENT (pad));
- GST_DEBUG_OBJECT (videofilter, "gst_videofilter_getcaps");
-
- klass = GST_VIDEOFILTER_CLASS (G_OBJECT_GET_CLASS (videofilter));
-
- /* we can handle anything that was registered */
- caps = gst_caps_new_empty ();
- for (i = 0; i < klass->formats->len; i++) {
- GstCaps *fromcaps;
-
- fromcaps =
- gst_caps_new_full (gst_videofilter_format_get_structure
- (g_ptr_array_index (klass->formats, i)), NULL);
-
- gst_caps_append (caps, fromcaps);
- }
-
- peer = gst_pad_get_peer (pad);
- if (peer) {
- GstCaps *peercaps;
-
- peercaps = gst_pad_get_caps (peer);
- if (peercaps) {
- GstCaps *icaps;
-
- icaps = gst_caps_intersect (peercaps, caps);
- gst_caps_unref (peercaps);
- gst_caps_unref (caps);
- caps = icaps;
- }
- //gst_object_unref (peer);
- }
-
- return caps;
-}
-
-static gboolean
-gst_videofilter_setcaps (GstPad * pad, GstCaps * caps)
-{
- GstVideofilter *videofilter;
- GstStructure *structure;
- int width, height;
- const GValue *framerate;
- int ret;
-
- videofilter = GST_VIDEOFILTER (GST_PAD_PARENT (pad));
-
- structure = gst_caps_get_structure (caps, 0);
-
- videofilter->format =
- gst_videofilter_find_format_by_structure (videofilter, structure);
- g_return_val_if_fail (videofilter->format, GST_PAD_LINK_REFUSED);
-
- ret = gst_structure_get_int (structure, "width", &width);
- ret &= gst_structure_get_int (structure, "height", &height);
-
- framerate = gst_structure_get_value (structure, "framerate");
- ret &= (framerate != NULL && GST_VALUE_HOLDS_FRACTION (framerate));
-
- if (!ret)
- return FALSE;
-
- gst_pad_set_caps (videofilter->srcpad, caps);
-
- GST_DEBUG_OBJECT (videofilter, "width %d height %d", width, height);
-
-#if 0
- if (pad == videofilter->srcpad) {
- videofilter->to_width = width;
- videofilter->to_height = height;
- } else {
- videofilter->from_width = width;
- videofilter->from_height = height;
- }
-#endif
- videofilter->to_width = width;
- videofilter->to_height = height;
- videofilter->from_width = width;
- videofilter->from_height = height;
- g_value_copy (framerate, &videofilter->framerate);
-
- gst_videofilter_setup (videofilter);
-
- return TRUE;
-}
-
static void
gst_videofilter_init (GTypeInstance * instance, gpointer g_class)
{
GstVideofilter *videofilter = GST_VIDEOFILTER (instance);
- GstPadTemplate *pad_template;
GST_DEBUG_OBJECT (videofilter, "gst_videofilter_init");
- pad_template =
- gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "sink");
- g_return_if_fail (pad_template != NULL);
- videofilter->sinkpad = gst_pad_new_from_template (pad_template, "sink");
- gst_element_add_pad (GST_ELEMENT (videofilter), videofilter->sinkpad);
- gst_pad_set_chain_function (videofilter->sinkpad, gst_videofilter_chain);
- gst_pad_set_setcaps_function (videofilter->sinkpad, gst_videofilter_setcaps);
- gst_pad_set_getcaps_function (videofilter->sinkpad, gst_videofilter_getcaps);
-
- pad_template =
- gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "src");
- g_return_if_fail (pad_template != NULL);
- videofilter->srcpad = gst_pad_new_from_template (pad_template, "src");
- gst_element_add_pad (GST_ELEMENT (videofilter), videofilter->srcpad);
- gst_pad_set_getcaps_function (videofilter->srcpad, gst_videofilter_getcaps);
-
videofilter->inited = FALSE;
- g_value_init (&videofilter->framerate, GST_TYPE_FRACTION);
-}
-
-static GstFlowReturn
-gst_videofilter_chain (GstPad * pad, GstBuffer * buf)
-{
- GstVideofilter *videofilter;
- guchar *data;
- gulong size;
- GstBuffer *outbuf;
- GstFlowReturn ret;
-
- videofilter = GST_VIDEOFILTER (GST_PAD_PARENT (pad));
- GST_DEBUG_OBJECT (videofilter, "gst_videofilter_chain");
-
- if (videofilter->passthru) {
- return gst_pad_push (videofilter->srcpad, buf);
- }
-
- if (GST_PAD_CAPS (pad) == NULL) {
- return GST_FLOW_NOT_NEGOTIATED;
- }
-
- data = GST_BUFFER_DATA (buf);
- size = GST_BUFFER_SIZE (buf);
-
- GST_LOG_OBJECT (videofilter, "got buffer of %ld bytes in '%s'", size,
- GST_OBJECT_NAME (videofilter));
-
- GST_LOG_OBJECT (videofilter,
- "size=%ld from=%dx%d to=%dx%d fromsize=%ld (should be %d) tosize=%d",
- size, videofilter->from_width, videofilter->from_height,
- videofilter->to_width, videofilter->to_height, size,
- videofilter->from_buf_size, videofilter->to_buf_size);
-
-
- if (size > videofilter->from_buf_size) {
- GST_INFO_OBJECT (videofilter, "buffer size %ld larger than expected (%d)",
- size, videofilter->from_buf_size);
- return GST_FLOW_ERROR;
- }
-
- ret = gst_pad_alloc_buffer (videofilter->srcpad, GST_BUFFER_OFFSET_NONE,
- videofilter->to_buf_size, GST_PAD_CAPS (videofilter->srcpad), &outbuf);
- if (ret != GST_FLOW_OK)
- goto no_buffer;
-
- g_return_val_if_fail (GST_BUFFER_DATA (outbuf), GST_FLOW_ERROR);
-
- GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
- GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
-
- g_return_val_if_fail (videofilter->format, GST_FLOW_ERROR);
- GST_DEBUG_OBJECT (videofilter, "format %s", videofilter->format->fourcc);
-
- videofilter->in_buf = buf;
- videofilter->out_buf = outbuf;
-
- videofilter->format->filter_func (videofilter, GST_BUFFER_DATA (outbuf),
- data);
- gst_buffer_unref (buf);
-
- GST_LOG_OBJECT (videofilter, "pushing buffer of %d bytes in '%s'",
- GST_BUFFER_SIZE (outbuf), GST_OBJECT_NAME (videofilter));
-
- ret = gst_pad_push (videofilter->srcpad, outbuf);
-
- return ret;
-
-no_buffer:
- {
- return ret;
- }
-}
-
-static void
-gst_videofilter_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstVideofilter *videofilter;
-
- g_return_if_fail (GST_IS_VIDEOFILTER (object));
- videofilter = GST_VIDEOFILTER (object);
-
- GST_DEBUG_OBJECT (videofilter, "gst_videofilter_set_property");
- switch (prop_id) {
- default:
- break;
- }
-}
-
-static void
-gst_videofilter_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
-{
- GstVideofilter *videofilter;
-
- g_return_if_fail (GST_IS_VIDEOFILTER (object));
- videofilter = GST_VIDEOFILTER (object);
-
- switch (prop_id) {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-int
-gst_videofilter_get_input_width (GstVideofilter * videofilter)
-{
- g_return_val_if_fail (GST_IS_VIDEOFILTER (videofilter), 0);
-
- return videofilter->from_width;
-}
-
-int
-gst_videofilter_get_input_height (GstVideofilter * videofilter)
-{
- g_return_val_if_fail (GST_IS_VIDEOFILTER (videofilter), 0);
-
- return videofilter->from_height;
-}
-
-void
-gst_videofilter_set_output_size (GstVideofilter * videofilter,
- int width, int height)
-{
- GstCaps *srccaps;
- GstStructure *structure;
-
- g_return_if_fail (GST_IS_VIDEOFILTER (videofilter));
-
- videofilter->to_width = width;
- videofilter->to_height = height;
-
- videofilter->to_buf_size = (videofilter->to_width * videofilter->to_height
- * videofilter->format->bpp) / 8;
-
- //srccaps = gst_caps_copy (gst_pad_get_negotiated_caps (videofilter->srcpad));
- srccaps = gst_caps_copy (GST_PAD_CAPS (videofilter->srcpad));
- structure = gst_caps_get_structure (srccaps, 0);
-
- gst_structure_set (structure, "width", G_TYPE_INT, width,
- "height", G_TYPE_INT, height, NULL);
-
- gst_pad_set_caps (videofilter->srcpad, srccaps);
-}
-
-void
-gst_videofilter_setup (GstVideofilter * videofilter)
-{
- GstVideofilterClass *klass;
-
- GST_DEBUG_OBJECT (videofilter, "setup");
-
- klass = GST_VIDEOFILTER_CLASS (G_OBJECT_GET_CLASS (videofilter));
-
- if (klass->setup) {
- GST_DEBUG_OBJECT (videofilter, "calling class setup method");
- klass->setup (videofilter);
- }
-
- if (videofilter->to_width == 0) {
- videofilter->to_width = videofilter->from_width;
- }
- if (videofilter->to_height == 0) {
- videofilter->to_height = videofilter->from_height;
- }
-
- g_return_if_fail (videofilter->format != NULL);
- g_return_if_fail (videofilter->from_width > 0);
- g_return_if_fail (videofilter->from_height > 0);
- g_return_if_fail (videofilter->to_width > 0);
- g_return_if_fail (videofilter->to_height > 0);
-
- videofilter->from_buf_size =
- (videofilter->from_width * videofilter->from_height *
- videofilter->format->bpp) / 8;
- videofilter->to_buf_size =
- (videofilter->to_width * videofilter->to_height *
- videofilter->format->bpp) / 8;
-
- GST_DEBUG_OBJECT (videofilter, "from_buf_size %d to_buf_size %d",
- videofilter->from_buf_size, videofilter->to_buf_size);
- videofilter->inited = TRUE;
-}
-
-GstVideofilterFormat *
-gst_videofilter_find_format_by_structure (GstVideofilter * videofilter,
- const GstStructure * structure)
-{
- int i;
- GstVideofilterClass *klass;
- GstVideofilterFormat *format;
- gboolean ret;
-
- klass = GST_VIDEOFILTER_CLASS (G_OBJECT_GET_CLASS (videofilter));
-
- g_return_val_if_fail (structure != NULL, NULL);
-
- if (strcmp (gst_structure_get_name (structure), "video/x-raw-yuv") == 0) {
- guint32 fourcc;
-
- ret = gst_structure_get_fourcc (structure, "format", &fourcc);
- if (!ret)
- return NULL;
- for (i = 0; i < klass->formats->len; i++) {
- guint32 format_fourcc;
-
- format = g_ptr_array_index (klass->formats, i);
- format_fourcc = GST_STR_FOURCC (format->fourcc);
- if (format->depth == 0 && format_fourcc == fourcc) {
- return format;
- }
- }
- } else if (strcmp (gst_structure_get_name (structure), "video/x-raw-rgb")
- == 0) {
- int bpp;
- int depth;
- int endianness;
- int red_mask;
- int green_mask;
- int blue_mask;
-
- ret = gst_structure_get_int (structure, "bpp", &bpp);
- ret &= gst_structure_get_int (structure, "depth", &depth);
- ret &= gst_structure_get_int (structure, "endianness", &endianness);
- ret &= gst_structure_get_int (structure, "red_mask", &red_mask);
- ret &= gst_structure_get_int (structure, "green_mask", &green_mask);
- ret &= gst_structure_get_int (structure, "blue_mask", &blue_mask);
- if (!ret)
- return NULL;
- for (i = 0; i < klass->formats->len; i++) {
- format = g_ptr_array_index (klass->formats, i);
- if (format->bpp == bpp && format->depth == depth &&
- format->endianness == endianness && format->red_mask == red_mask &&
- format->green_mask == green_mask && format->blue_mask == blue_mask) {
- return format;
- }
- }
- }
-
- return NULL;
-}
-
-void
-gst_videofilter_class_add_format (GstVideofilterClass * videofilterclass,
- GstVideofilterFormat * format)
-{
- g_ptr_array_add (videofilterclass->formats, format);
-}
-
-void
-gst_videofilter_class_add_pad_templates (GstVideofilterClass *
- videofilter_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (videofilter_class);
-
- gst_element_class_add_pad_template (element_class,
- gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
- gst_videofilter_class_get_capslist (videofilter_class)));
-
- gst_element_class_add_pad_template (element_class,
- gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
- gst_videofilter_class_get_capslist (videofilter_class)));
}
projects / platform / upstream / gst-plugins-base.git / commitdiff