sys/: New plugin for audio capture and playback using Windows Audio Session

Original commit message from CVS:
* sys/Makefile.am:
* sys/wasapi/Makefile.am:
* sys/wasapi/gstwasapi.c:
* sys/wasapi/gstwasapisink.c:
* sys/wasapi/gstwasapisink.h:
* sys/wasapi/gstwasapisrc.c:
* sys/wasapi/gstwasapisrc.h:
* sys/wasapi/gstwasapiutil.c:
* sys/wasapi/gstwasapiutil.h:
New plugin for audio capture and playback using Windows Audio Session
API (WASAPI) available with Vista and newer (#520901).
Comes with hardcoded caps and obviously needs lots of love. Haven't
had time to work on this code since it was written, was initially just
a quick experiment to play around with this new API.

1 files changed, 74 insertions, 0 deletions

diff --git a/sys/wasapi/gstwasapisrc.h b/sys/wasapi/gstwasapisrc.h
new file mode 100644
index 00000000..26d14fbe
--- /dev/null
+++ b/sys/wasapi/gstwasapisrc.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2008 Ole André Vadla Ravnås <ole.andre.ravnas@tandberg.com>
+ *
+ * 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_WASAPI_SRC_H__
+#define __GST_WASAPI_SRC_H__
+
+#include "gstwasapiutil.h"
+
+#include <gst/base/gstpushsrc.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_WASAPI_SRC \
+  (gst_wasapi_src_get_type ())
+#define GST_WASAPI_SRC(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_WASAPI_SRC, GstWasapiSrc))
+#define GST_WASAPI_SRC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_WASAPI_SRC, GstWasapiSrcClass))
+#define GST_IS_WASAPI_SRC(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_WASAPI_SRC))
+#define GST_IS_WASAPI_SRC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_WASAPI_SRC))
+
+typedef struct _GstWasapiSrc      GstWasapiSrc;
+typedef struct _GstWasapiSrcClass GstWasapiSrcClass;
+
+struct _GstWasapiSrc
+{
+  GstPushSrc audio_src;
+
+  GstClock * clock;
+
+  guint rate;
+  GstClockTime buffer_time;
+  GstClockTime period_time;
+  GstClockTime latency;
+  guint samples_per_buffer;
+
+  IAudioClient * client;
+  IAudioClock * client_clock;
+  guint64 client_clock_freq;
+  IAudioCaptureClient * capture_client;
+
+  GstClockTime start_time;
+  GstClockTime next_time;
+};
+
+struct _GstWasapiSrcClass
+{
+  GstPushSrcClass parent_class;
+};
+
+GType gst_wasapi_src_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_WASAPI_SRC_H__ */
+