Initial revision

Original commit message from CVS:
Initial revision

1 files changed, 95 insertions, 0 deletions

diff --git a/gst/law/alaw.c b/gst/law/alaw.c
new file mode 100644
index 00000000..1b9afb5c
--- /dev/null
+++ b/gst/law/alaw.c
@@ -0,0 +1,95 @@
+#include "alaw-encode.h"
+#include "alaw-decode.h"
+
+static GstElementDetails alawenc_details = {
+  "PCM to A Law conversion",
+  "Filter/Effect",
+  "Convert 16bit PCM to 8bit A law",
+  VERSION,
+  "Zaheer Merali <zaheer@bellworldwide.net>",
+  "(C) 2001"
+};
+
+static GstElementDetails alawdec_details = {
+  "A Law to PCM conversion",
+  "Filter/Effect",
+  "Convert 8bit A law to 16bit PCM",
+  VERSION,
+  "Zaheer Merali <zaheer@bellworldwide.net>",
+  "(C) 2001"
+};
+
+static GstCaps*
+alaw_factory (void)
+{
+  return
+   gst_caps_new (
+  	"test_src",
+    	"audio/raw",
+	gst_props_new (
+    	  "format",  GST_PROPS_STRING ("int"),
+    	    "law",   GST_PROPS_INT (2),
+    	    "width", GST_PROPS_INT(8),
+    	    "depth", GST_PROPS_INT(8),
+    	    "signed", GST_PROPS_BOOLEAN(FALSE),
+	    NULL));
+}
+
+static GstCaps*
+linear_factory (void)
+{
+  return
+   gst_caps_new (
+  	"test_sink",
+    	"audio/raw",
+	gst_props_new (
+    	  "format",     GST_PROPS_STRING ("int"),
+      	    "law",      GST_PROPS_INT(0),
+      	    "width",    GST_PROPS_INT(16),
+      	    "depth",    GST_PROPS_INT(16),
+      	    "signed",   GST_PROPS_BOOLEAN(TRUE),
+	    NULL));
+}
+
+GstPadTemplate *alawenc_src_template, *alawenc_sink_template; 
+GstPadTemplate *alawdec_src_template, *alawdec_sink_template;
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+  GstElementFactory *alawenc_factory, *alawdec_factory;
+  GstCaps* alaw_caps, *linear_caps;
+
+  alawenc_factory = gst_elementfactory_new("alawencode",GST_TYPE_ALAWENC,
+                                            &alawenc_details);
+  g_return_val_if_fail(alawenc_factory != NULL, FALSE);
+  alawdec_factory = gst_elementfactory_new("alawdecode",GST_TYPE_ALAWDEC,
+					    &alawdec_details);
+  g_return_val_if_fail(alawdec_factory != NULL, FALSE);
+
+  alaw_caps = alaw_factory ();
+  linear_caps = linear_factory ();
+ 
+  alawenc_src_template = gst_padtemplate_new ("src",GST_PAD_SRC,GST_PAD_ALWAYS,alaw_caps, NULL);
+  alawenc_sink_template = gst_padtemplate_new ("sink",GST_PAD_SINK,GST_PAD_ALWAYS,linear_caps, NULL);
+  gst_elementfactory_add_padtemplate (alawenc_factory, alawenc_src_template);
+  gst_elementfactory_add_padtemplate (alawenc_factory, alawenc_sink_template);
+
+  alawdec_src_template = gst_padtemplate_new ("src",GST_PAD_SRC,GST_PAD_ALWAYS,linear_caps, NULL);
+  alawdec_sink_template = gst_padtemplate_new ("sink",GST_PAD_SINK,GST_PAD_ALWAYS,alaw_caps, NULL);
+  
+  gst_elementfactory_add_padtemplate (alawdec_factory, alawdec_src_template);
+  gst_elementfactory_add_padtemplate (alawdec_factory, alawdec_sink_template);
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (alawenc_factory));
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (alawdec_factory));
+
+  return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+  GST_VERSION_MAJOR,
+  GST_VERSION_MINOR,
+  "alaw",
+  plugin_init
+};
+