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pngenc fixed

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Original commit message from CVS:
pngenc fixed
This commit is contained in:
Iain Holmes 2003-11-02 00:21:14 +00:00
parent f57a2a9d54
commit b509505b49
2 changed files with 61 additions and 57 deletions
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66
ext/libpng/gstpng.c
View file

@ -16,70 +16,30 @@
*
*/
#include <config.h>
#include <string.h>
#include <gst/gst.h>
#include <gst/video/video.h>
#include "gstpngenc.h"
extern GstElementDetails gst_pngenc_details;
static GstCaps*
png_caps_factory (void)
{
return gst_caps_new ( "png_png",
"video/x-png",
gst_props_new (
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096),
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
NULL));
}
static GstCaps*
raw_caps_factory (void)
{
return gst_caps_new ( "png_raw",
"video/x-raw-rgb",
GST_VIDEO_RGB_PAD_TEMPLATE_PROPS_24
);
}
static gboolean
plugin_init (GModule * module, GstPlugin * plugin)
plugin_init (GstPlugin * plugin)
{
GstElementFactory *png_enc;
GstCaps *raw_caps, *png_caps;
/* create an elementfactory for the jpegdec element */
png_enc = gst_element_factory_new("pngenc", GST_TYPE_PNGENC, &gst_pngenc_details);
g_return_val_if_fail(png_enc != NULL, FALSE);
raw_caps = raw_caps_factory ();
png_caps = png_caps_factory ();
/* register sink pads */
pngenc_sink_template = gst_pad_template_new ("sink", GST_PAD_SINK,
GST_PAD_ALWAYS,
raw_caps, NULL);
gst_element_factory_add_pad_template (png_enc, pngenc_sink_template);
/* register src pads */
pngenc_src_template = gst_pad_template_new ("src", GST_PAD_SRC,
GST_PAD_ALWAYS,
png_caps, NULL);
gst_element_factory_add_pad_template (png_enc, pngenc_src_template);
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (png_enc));
if (!gst_element_register (plugin, "pngenc", GST_RANK_NONE, GST_TYPE_PNGENC))
return FALSE;
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_PLUGIN_DEFINE (
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"png",
plugin_init
};
"PNG plugin library",
plugin_init,
VERSION,
"LGPL",
GST_COPYRIGHT,
GST_PACKAGE,
GST_ORIGIN)

52
ext/libpng/gstpngenc.c
View file

@ -22,6 +22,7 @@
#include <string.h>
#include <gst/gst.h>
#include "gstpngenc.h"
#include <gst/video/video.h>
#define MAX_HEIGHT 4096
@ -29,11 +30,8 @@
GstElementDetails gst_pngenc_details = {
"PNG encoder",
"Codec/Image",
"LGPL",
"Encode a video frame to a .png image",
VERSION,
"Jeremy SIMON <jsimon13@yahoo.fr>",
"(C) 2000 Donald Graft",
};
@ -49,6 +47,7 @@ enum
ARG_0
};
static void gst_pngenc_base_init (gpointer g_class);
static void gst_pngenc_class_init (GstPngEncClass *klass);
static void gst_pngenc_init (GstPngEnc *pngenc);
@ -74,7 +73,8 @@ GType gst_pngenc_get_type (void)
if (!pngenc_type) {
static const GTypeInfo pngenc_info = {
sizeof (GstPngEncClass), NULL,
sizeof (GstPngEncClass),
gst_pngenc_base_init,
NULL,
(GClassInitFunc) gst_pngenc_class_init,
NULL,
@ -90,6 +90,50 @@ GType gst_pngenc_get_type (void)
return pngenc_type;
}
static GstCaps*
png_caps_factory (void)
{
return gst_caps_new ( "png_png",
"video/x-png",
gst_props_new (
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096),
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
NULL));
}
static GstCaps*
raw_caps_factory (void)
{
return gst_caps_new ( "png_raw",
"video/x-raw-rgb",
GST_VIDEO_RGB_PAD_TEMPLATE_PROPS_24
);
}
static void
gst_pngenc_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstCaps *raw_caps, *png_caps;
raw_caps = raw_caps_factory ();
png_caps = png_caps_factory ();
pngenc_sink_template = gst_pad_template_new ("sink", GST_PAD_SINK,
GST_PAD_ALWAYS,
raw_caps, NULL);
pngenc_src_template = gst_pad_template_new ("src", GST_PAD_SRC,
GST_PAD_ALWAYS,
png_caps, NULL);
gst_element_class_add_pad_template (element_class, pngenc_sink_template);
gst_element_class_add_pad_template (element_class, pngenc_src_template);
gst_element_class_set_details (element_class, &gst_pngenc_details);
}
static void
gst_pngenc_class_init (GstPngEncClass *klass)
{