1 files changed, 251 insertions, 0 deletions
diff --git a/libjava/classpath/native/jni/gstreamer-peer/gst_native_data_line.c b/libjava/classpath/native/jni/gstreamer-peer/gst_native_data_line.c
new file mode 100644
index 000000000..84e76a1dc
--- /dev/null
+++ b/libjava/classpath/native/jni/gstreamer-peer/gst_native_data_line.c
@@ -0,0 +1,251 @@
+/*gst_native_data_line.c - Implements the native methods of GstNativeDataLine 
+ Copyright (C) 2007 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+#include <jni.h>
+
+#include <gst/gst.h>
+
+#include "jcl.h"
+#include "gnu_javax_sound_sampled_gstreamer_lines_GstNativeDataLine.h"
+
+#include "gst_peer.h"
+#include "gst_classpath_src.h"
+#include "gst_native_pipeline.h"
+
+static jfieldID pointerDataFID = NULL;
+
+/* ************************************************************************** */
+
+static GstElement *setup_pipeline (GstNativePipeline *jpipeline, int fd);
+static void
+gst_newpad (GstElement *decodebin, GstPad *pad, gboolean last, gpointer data);
+
+/* ************************************************************************** */
+
+JNIEXPORT void JNICALL
+Java_gnu_javax_sound_sampled_gstreamer_lines_GstNativeDataLine_init_1id_1cache
+  (JNIEnv *env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)))
+{
+  jclass pointerClass = NULL;
+  
+#if SIZEOF_VOID_P == 8
+  pointerClass = JCL_FindClass (env, "gnu/classpath/Pointer64");
+  if (pointerClass != NULL)
+    {
+      pointerDataFID = (*env)->GetFieldID (env, pointerClass, "data", "J");
+    }
+#else
+# if SIZEOF_VOID_P == 4
+  pointerClass = JCL_FindClass (env, "gnu/classpath/Pointer32"); 
+  if (pointerClass != NULL)
+    { 
+      pointerDataFID = (*env)->GetFieldID(env, pointerClass, "data", "I");
+    }
+# else
+#   error "Pointer size is not supported."
+# endif /* SIZEOF_VOID_P == 4 */
+#endif /* SIZEOF_VOID_P == 8 */
+}
+
+JNIEXPORT jboolean JNICALL
+Java_gnu_javax_sound_sampled_gstreamer_lines_GstNativeDataLine_setup_1sink_1pipeline
+  (JNIEnv *env, jclass clazz __attribute__ ((unused)),
+   jobject pointer)
+{
+  GstNativePipeline *jpipeline = NULL;
+  
+  GstElement *pipeline = NULL;
+  GstElement *sink = NULL;
+  GstElement *audioconv= NULL;
+  GstElement *resample = NULL;
+  GstElement *audio = NULL;
+  GstElement *decodebin = NULL;
+  
+  GstPad *audiopad = NULL;
+  
+  gst_init (NULL, NULL);
+  
+  /* get the pipeline from the pointer, then create it if needed */
+  jpipeline = (GstNativePipeline *) get_object_from_pointer (env, pointer,
+                                                            pointerDataFID);
+  if (jpipeline == NULL)
+    return JNI_FALSE;
+ 
+  pipeline = setup_pipeline (jpipeline,
+                             gst_native_pipeline_get_pipeline_fd (jpipeline));
+  if (pipeline == NULL)
+    return JNI_FALSE;
+   
+  /* add the audio sink to the pipeline */
+  /* TODO: hardcoded values */
+  sink = gst_element_factory_make ("autoaudiosink", "alsa-output");
+  if (sink == NULL)
+    {
+      gst_object_unref(GST_OBJECT(pipeline));
+      gst_object_unref(GST_OBJECT(sink));
+
+      g_warning ("unable to create sink\n");
+      return JNI_FALSE;
+    }
+  
+  audioconv = gst_element_factory_make ("audioconvert", "aconv");
+  if (audioconv == NULL)
+    {
+      gst_object_unref(GST_OBJECT(pipeline));
+      gst_object_unref(GST_OBJECT(sink));
+      gst_object_unref(GST_OBJECT(decodebin));
+
+      g_warning ("unable to create audioconv\n");
+      return JNI_FALSE;
+    }
+  
+  audio = gst_bin_new ("audiobin");
+  if (audio == NULL)
+    {
+      gst_object_unref(GST_OBJECT(pipeline));
+      gst_object_unref(GST_OBJECT(sink));
+      gst_object_unref(GST_OBJECT(decodebin));
+
+      g_warning ("unable to create audioconv\n");
+      return JNI_FALSE;
+    }
+  
+  resample = gst_element_factory_make ("audioresample", "audioresample");
+  if (audioconv == NULL)
+    {
+      gst_object_unref(GST_OBJECT(pipeline));
+      gst_object_unref(GST_OBJECT(sink));
+      gst_object_unref(GST_OBJECT(decodebin));
+      gst_object_unref(GST_OBJECT(audio));
+
+      g_warning ("unable to create resample\n");
+      return JNI_FALSE;
+    }
+  
+  audiopad = gst_element_get_pad (audioconv, "sink");
+  gst_bin_add_many (GST_BIN (audio), audioconv, resample, sink, NULL);
+  gst_element_link (audioconv, sink);
+
+  gst_element_add_pad (audio, gst_ghost_pad_new ("sink", audiopad));
+
+  gst_object_unref (audiopad);
+  gst_bin_add (GST_BIN (pipeline), audio);
+    
+  decodebin = gst_bin_get_by_name (GST_BIN (pipeline), "decodebin");
+  g_signal_connect (decodebin, "new-decoded-pad", G_CALLBACK (gst_newpad),
+                    audio);
+  
+  gst_native_pipeline_set_pipeline (jpipeline, pipeline);
+  
+  return JNI_TRUE;
+}
+
+/* ************************************************************************** */
+
+static GstElement *setup_pipeline (GstNativePipeline *jpipeline, int fd)
+{
+  GstElement *decodebin = NULL;
+  GstElement *source = NULL;
+  
+  GstElement *pipeline = NULL;
+  
+  if (fd < 0)
+    return NULL;
+  
+  pipeline = gst_pipeline_new ("java sound pipeline");
+  if (pipeline == NULL)
+    return NULL;
+    
+  decodebin = gst_element_factory_make ("decodebin", "decodebin");
+  if (decodebin == NULL)
+    {
+      gst_object_unref(GST_OBJECT(pipeline));
+      gst_object_unref(GST_OBJECT(source));
+
+      g_warning ("unable to create decodebin\n");
+      return NULL;
+    }
+    
+  source = gst_element_factory_make ("fdsrc", "source");
+  if (source == NULL)
+    {
+      gst_object_unref(GST_OBJECT(pipeline));
+      gst_object_unref(GST_OBJECT(source));
+      gst_object_unref(GST_OBJECT(decodebin));
+
+      g_warning ("unable to create a source");
+      return JNI_FALSE;
+    }
+  g_object_set (G_OBJECT (source), "fd", fd, NULL);
+  
+  gst_bin_add_many (GST_BIN (pipeline), source, decodebin, NULL);
+  gst_element_link (source, decodebin);
+  
+  return pipeline;
+}
+
+static void
+gst_newpad (GstElement *decodebin, GstPad *pad, gboolean last, gpointer data)
+{
+  GstCaps *caps;
+  GstStructure *str;
+  GstPad *audiopad;
+    
+  GstElement *audio = (GstElement *) data;
+
+  /* only link once */
+  audiopad = gst_element_get_pad (audio, "sink");
+  if (GST_PAD_IS_LINKED (audiopad))
+    {
+      g_object_unref (audiopad);
+      return;
+    } 
+  
+  /* check media type */
+  caps = gst_pad_get_caps (pad);
+  str = gst_caps_get_structure (caps, 0);
+  if (!g_strrstr (gst_structure_get_name (str), "audio"))
+    {
+      gst_caps_unref (caps);
+      gst_object_unref (audiopad);
+      return;
+    } 
+  gst_caps_unref (caps);
+  
+  /* link'n'play */
+  gst_pad_link (pad, audiopad);
+}