[MOVED FROM BAD] BBB asked me to rename lav to y4m can someone who knows the plugin...

Original commit message from CVS:
BBB asked me to rename lav to y4m
can someone who knows the plugin do this in the source as well ?

diff --git a/gst/y4m/Makefile.am b/gst/y4m/Makefile.am
new file mode 100644 (file)
index 0000000..5b92bf6
--- /dev/null
+++ b/gst/y4m/Makefile.am
@@ -0,0 +1,8 @@
+plugindir = $(libdir)/gst
+
+filter_LTLIBRARIES = libgsty4mencode.la
+
+libgsty4mencode_la_SOURCES = gsty4mencode.c
+libgsty4mencode_la_CFLAGS = $(GST_CFLAGS)
+
+noinst_HEADERS = gsty4mencode.h

diff --git a/gst/y4m/gsty4mencode.c b/gst/y4m/gsty4mencode.c
new file mode 100644 (file)
index 0000000..28a0704
--- /dev/null
+++ b/gst/y4m/gsty4mencode.c
@@ -0,0 +1,257 @@
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <string.h>
+#include <gst/gst.h>
+#include "gstlavencode.h"
+
+static GstElementDetails lavencode_details = {
+  "LavEncode",
+  "Filter/LAV/Encoder",
+  "Encodes a YUV frame into the lav format (mjpeg_tools)",
+  VERSION,
+  "Wim Taymans <wim.taymans@chello.be>",
+  "(C) 2001",
+};
+
+
+/* Filter signals and args */
+enum {
+  /* FILL ME */
+  LAST_SIGNAL
+};
+
+enum {
+  ARG_0
+};
+
+GST_PADTEMPLATE_FACTORY (lavencode_src_factory,
+  "src",
+  GST_PAD_SRC,
+  GST_PAD_ALWAYS,
+  GST_CAPS_NEW (
+    "test_src",
+    "application/x-lav",
+    NULL
+  )
+)
+
+GST_PADTEMPLATE_FACTORY (lavencode_sink_factory,
+  "sink",
+  GST_PAD_SINK,
+  GST_PAD_ALWAYS,
+  GST_CAPS_NEW (
+    "test_src",
+    "video/raw",
+      "format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
+      "width", GST_PROPS_INT_RANGE (0, G_MAXINT),
+      "height", GST_PROPS_INT_RANGE (0, G_MAXINT)
+  )
+)
+
+static void                    gst_lavencode_class_init        (GstLavEncodeClass *klass);
+static void                    gst_lavencode_init              (GstLavEncode *filter);
+
+static void                    gst_lavencode_set_property              (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
+static void                    gst_lavencode_get_property              (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
+
+static void                    gst_lavencode_chain             (GstPad *pad, GstBuffer *buf);
+static GstElementStateReturn   gst_lavencode_change_state      (GstElement *element);
+
+
+static GstElementClass *parent_class = NULL;
+//static guint gst_filter_signals[LAST_SIGNAL] = { 0 };
+
+GType
+gst_lavencode_get_type(void) {
+  static GType lavencode_type = 0;
+
+  if (!lavencode_type) {
+    static const GTypeInfo lavencode_info = {
+      sizeof(GstLavEncodeClass),      NULL,
+      NULL,
+      (GClassInitFunc)gst_lavencode_class_init,
+      NULL,
+      NULL,
+      sizeof(GstLavEncode),
+      0,
+      (GInstanceInitFunc)gst_lavencode_init,
+    };
+    lavencode_type = g_type_register_static(GST_TYPE_ELEMENT, "GstLavEncode", &lavencode_info, 0);
+  }
+  return lavencode_type;
+}
+
+static void
+gst_lavencode_class_init (GstLavEncodeClass *klass)
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+
+  gobject_class = (GObjectClass*)klass;
+  gstelement_class = (GstElementClass*)klass;
+
+  parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+
+  gstelement_class->change_state = gst_lavencode_change_state;
+
+  gobject_class->set_property = gst_lavencode_set_property;
+  gobject_class->get_property = gst_lavencode_get_property;
+}
+
+static void
+gst_lavencode_newcaps (GstPad *pad, GstCaps *caps)
+{
+  GstLavEncode *filter;
+
+  filter = GST_LAVENCODE (gst_pad_get_parent (pad));
+
+  filter->width = gst_caps_get_int (caps, "width");
+  filter->height = gst_caps_get_int (caps, "height");
+}
+
+static void
+gst_lavencode_init (GstLavEncode *filter)
+{
+  filter->sinkpad = gst_pad_new_from_template(
+                 GST_PADTEMPLATE_GET (lavencode_sink_factory), "sink");
+  gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
+  gst_pad_set_chain_function (filter->sinkpad, gst_lavencode_chain);
+  gst_pad_set_newcaps_function (filter->sinkpad, gst_lavencode_newcaps);
+
+  filter->srcpad = gst_pad_new_from_template(
+                 GST_PADTEMPLATE_GET (lavencode_src_factory), "src");
+  gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
+
+  filter->init = TRUE;
+}
+
+static void
+gst_lavencode_chain (GstPad *pad,GstBuffer *buf)
+{
+  GstLavEncode *filter;
+  GstBuffer* outbuf;
+  gchar *header;
+  gint len;
+
+  g_return_if_fail(pad != NULL);
+  g_return_if_fail(GST_IS_PAD(pad));
+  g_return_if_fail(buf != NULL);
+
+  filter = GST_LAVENCODE (gst_pad_get_parent (pad));
+  g_return_if_fail(filter != NULL);
+  g_return_if_fail(GST_IS_LAVENCODE(filter));
+
+  outbuf = gst_buffer_new ();
+  GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (buf) + 256);
+
+  if (filter->init) {
+    header = "YUV4MPEG %d %d %d\nFRAME\n";
+    filter->init = FALSE;
+  }
+  else {
+    header = "FRAME\n";
+  }
+
+  snprintf (GST_BUFFER_DATA (outbuf), 255, header, filter->width, filter->height, 3);
+  len = strlen (GST_BUFFER_DATA (outbuf));
+
+  memcpy (GST_BUFFER_DATA (outbuf) + len, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
+  GST_BUFFER_SIZE (outbuf) = GST_BUFFER_SIZE (buf) + len;
+
+  gst_buffer_unref(buf);
+
+  gst_pad_push(filter->srcpad,outbuf);
+}
+
+static void
+gst_lavencode_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+  GstLavEncode *filter;
+
+  /* it's not null if we got it, but it might not be ours */
+  g_return_if_fail(GST_IS_LAVENCODE(object));
+  filter = GST_LAVENCODE(object);
+
+  switch (prop_id) {
+    default:
+      break;
+  }
+}
+
+static void
+gst_lavencode_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+  GstLavEncode *filter;
+
+  /* it's not null if we got it, but it might not be ours */
+  g_return_if_fail(GST_IS_LAVENCODE(object));
+  filter = GST_LAVENCODE(object);
+
+  switch (prop_id) {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static GstElementStateReturn
+gst_lavencode_change_state (GstElement *element)
+{
+  GstLavEncode *filter;
+
+  g_return_val_if_fail (GST_IS_LAVENCODE (element), GST_STATE_FAILURE);
+
+  filter = GST_LAVENCODE(element);
+
+  if (GST_STATE_TRANSITION (element) == GST_STATE_NULL_TO_READY) {
+    filter->init = TRUE;
+  }
+
+  if (GST_ELEMENT_CLASS (parent_class)->change_state)
+    return GST_ELEMENT_CLASS (parent_class)->change_state (element);
+
+  return GST_STATE_SUCCESS;
+}
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+  GstElementFactory *factory;
+
+  factory = gst_elementfactory_new("lavencode",GST_TYPE_LAVENCODE,
+                                   &lavencode_details);
+  g_return_val_if_fail(factory != NULL, FALSE);
+  
+  gst_elementfactory_add_padtemplate (factory, 
+                 GST_PADTEMPLATE_GET (lavencode_src_factory));
+  gst_elementfactory_add_padtemplate (factory, 
+                 GST_PADTEMPLATE_GET (lavencode_sink_factory));
+
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+  return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+  GST_VERSION_MAJOR,
+  GST_VERSION_MINOR,
+  "lavencode",
+  plugin_init
+};

diff --git a/gst/y4m/gsty4mencode.h b/gst/y4m/gsty4mencode.h
new file mode 100644 (file)
index 0000000..3471698
--- /dev/null
+++ b/gst/y4m/gsty4mencode.h
@@ -0,0 +1,71 @@
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef __GST_LAVENCODE_H__
+#define __GST_LAVENCODE_H__
+
+
+#include <config.h>
+#include <gst/gst.h>
+// #include <gst/meta/audioraw.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+#define GST_TYPE_LAVENCODE \
+  (gst_lavencode_get_type())
+#define GST_LAVENCODE(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_LAVENCODE,GstLavEncode))
+#define GST_LAVENCODE_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstLavEncode))
+#define GST_IS_LAVENCODE(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_LAVENCODE))
+#define GST_IS_LAVENCODE_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_LAVENCODE))
+
+typedef struct _GstLavEncode GstLavEncode;
+typedef struct _GstLavEncodeClass GstLavEncodeClass;
+
+struct _GstLavEncode {
+  GstElement element;
+
+  GstPad *sinkpad,*srcpad;
+
+  gint width, height;
+
+  gboolean init;
+
+};
+
+struct _GstLavEncodeClass {
+  GstElementClass parent_class;
+};
+
+GType gst_lavencode_get_type(void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+
+#endif /* __GST_STEREO_H__ */