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-rw-r--r--ChangeLog35
-rw-r--r--configure.ac125
-rw-r--r--ext/apexsink/LGPL-3.0.txt165
-rw-r--r--ext/apexsink/Makefile.am8
-rw-r--r--ext/apexsink/gstapexplugin.c44
-rw-r--r--ext/apexsink/gstapexraop.c690
-rw-r--r--ext/apexsink/gstapexraop.h124
-rw-r--r--ext/apexsink/gstapexsink.c571
-rw-r--r--ext/apexsink/gstapexsink.h85
9 files changed, 1847 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index bc8b20d5..6a45f33d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,38 @@
+2008-08-28 Sebastian Dröge <sebastian.droege@collabora.co.uk>
+
+ Patch by: Jérémie Bernard <gremimail at gmail dot com>
+
+ * configure.ac:
+ * ext/apexsink/LGPL-3.0.txt:
+ * ext/apexsink/Makefile.am:
+ * ext/apexsink/gstapexplugin.c: (plugin_init):
+ * ext/apexsink/gstapexraop.c: (g_strdel), (gst_apexraop_send),
+ (gst_apexraop_recv), (gst_apexraop_new), (gst_apexraop_free),
+ (gst_apexraop_set_host), (gst_apexraop_get_host),
+ (gst_apexraop_set_port), (gst_apexraop_get_port),
+ (gst_apexraop_set_useragent), (gst_apexraop_get_useragent),
+ (gst_apexraop_connect), (gst_apexraop_get_jacktype),
+ (gst_apexraop_get_jackstatus), (gst_apexraop_close),
+ (gst_apexraop_set_volume), (gst_apexraop_write_bits),
+ (gst_apexraop_write), (gst_apexraop_flush):
+ * ext/apexsink/gstapexraop.h:
+ * ext/apexsink/gstapexsink.c: (gst_apexsink_jackstatus_get_type),
+ (gst_apexsink_jacktype_get_type), (gst_apexsink_interfaces_init),
+ (gst_apexsink_implements_interface_init),
+ (gst_apexsink_mixer_interface_init),
+ (gst_apexsink_interface_supported),
+ (gst_apexsink_mixer_list_tracks), (gst_apexsink_mixer_set_volume),
+ (gst_apexsink_mixer_get_volume), (gst_apexsink_base_init),
+ (gst_apexsink_class_init), (gst_apexsink_init),
+ (gst_apexsink_set_property), (gst_apexsink_get_property),
+ (gst_apexsink_finalise), (gst_apexsink_open),
+ (gst_apexsink_prepare), (gst_apexsink_write),
+ (gst_apexsink_unprepare), (gst_apexsink_delay),
+ (gst_apexsink_reset), (gst_apexsink_close):
+ * ext/apexsink/gstapexsink.h:
+ Add apexsink for audio output to Apple AirPort Express Wireless
+ devices. Fixes bug #542510.
+
2008-08-28 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/rtpmanager/gstrtpsession.c: (gst_rtp_session_send_rtcp),
diff --git a/configure.ac b/configure.ac
index 48ca5480..b24c3ad9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -346,6 +346,129 @@ AG_GST_CHECK_FEATURE(AMRWB, [amrwb library], amrwb, [
AC_SUBST(AMRWB_LIBS))
])
+dnl *** apexsink ***
+translit(dnm, m, l) AM_CONDITIONAL(USE_APEXSINK, true)
+AG_GST_CHECK_FEATURE(APEXSINK, [AirPort Express Wireless sink], apexsink, [
+
+ HAVE_APEXSINK="yes"
+ # The big search for OpenSSL
+ # copied from openssh's configure.ac
+ AC_ARG_WITH(ssl-dir,
+ [ --with-ssl-dir=PATH Specify path to OpenSSL installation ],
+ [
+ if test "x$withval" != "xno" ; then
+ tryssldir=$withval
+ fi
+ ]
+ )
+
+ AC_SEARCH_LIBS(socket, [socket])
+ AC_SEARCH_LIBS(gethostbyname, [nsl])
+
+ saved_LIBS="$LIBS"
+ saved_LDFLAGS="$LDFLAGS"
+ saved_CPPFLAGS="$CPPFLAGS"
+ if test "x$prefix" != "xNONE" ; then
+ tryssldir="$tryssldir $prefix"
+ fi
+ AC_CACHE_CHECK([for OpenSSL directory], ac_cv_openssldir, [
+ for ssldir in $tryssldir "" /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /usr/pkg /opt /opt/openssl ; do
+ CPPFLAGS="$saved_CPPFLAGS"
+ LDFLAGS="$saved_LDFLAGS"
+ LIBS="$saved_LIBS -lssl -lcrypto"
+
+ # Skip directories if they don't exist
+ if test ! -z "$ssldir" -a ! -d "$ssldir" ; then
+ continue;
+ fi
+ if test ! -z "$ssldir" -a "x$ssldir" != "x/usr"; then
+ # Try to use $ssldir/lib if it exists, otherwise
+ # $ssldir
+ if test -d "$ssldir/lib" ; then
+ LDFLAGS="-L$ssldir/lib $saved_LDFLAGS"
+ if test ! -z "$need_dash_r" ; then
+ LDFLAGS="-R$ssldir/lib $LDFLAGS"
+ fi
+ else
+ LDFLAGS="-L$ssldir $saved_LDFLAGS"
+ if test ! -z "$need_dash_r" ; then
+ LDFLAGS="-R$ssldir $LDFLAGS"
+ fi
+ fi
+ # Try to use $ssldir/include if it exists, otherwise
+ # $ssldir
+ if test -d "$ssldir/include" ; then
+ CPPFLAGS="-I$ssldir/include $saved_CPPFLAGS"
+ else
+ CPPFLAGS="-I$ssldir $saved_CPPFLAGS"
+ fi
+ fi
+
+ # Basic test to check for compatible version and correct linking
+ # *does not* test for RSA - that comes later.
+ AC_TRY_RUN(
+ [
+#include <string.h>
+#include <openssl/rand.h>
+int main(void)
+{
+ char a[2048];
+ memset(a, 0, sizeof(a));
+ RAND_add(a, sizeof(a), sizeof(a));
+ return(RAND_status() <= 0);
+}
+ ],
+ [
+ found_crypto=1
+ break;
+ ], []
+ )
+
+ if test ! -z "$found_crypto" ; then
+ break;
+ fi
+ done
+
+ if test -z "$found_crypto" ; then
+ HAVE_APEXSINK="no"
+ fi
+ if test -z "$ssldir" ; then
+ ssldir="(system)"
+ fi
+
+ ac_cv_openssldir=$ssldir
+ ])
+ if (test ! -z "$ac_cv_openssldir" && test "x$ac_cv_openssldir" != "x(system)") ;
+ then
+ dnl Need to recover ssldir - test above runs in subshell
+ ssldir=$ac_cv_openssldir
+ if test ! -z "$ssldir" -a "x$ssldir" != "x/usr"; then
+ # Try to use $ssldir/lib if it exists, otherwise
+ # $ssldir
+ if test -d "$ssldir/lib" ; then
+ APEXSINK_LIBS="-L$ssldir/lib $saved_LDFLAGS"
+ if test ! -z "$need_dash_r" ; then
+ APEXSINK_LIBS="-R$ssldir/lib $LDFLAGS"
+ fi
+ else
+ APEXSINK_LDFLAGS="-L$ssldir $saved_LDFLAGS"
+ if test ! -z "$need_dash_r" ; then
+ APEXSINK_LIBS="-R$ssldir $LDFLAGS"
+ fi
+ fi
+ # Try to use $ssldir/include if it exists, otherwise
+ # $ssldir
+ if test -d "$ssldir/include" ; then
+ APEXSINK_CFLAGS="-I$ssldir/include $saved_CPPFLAGS"
+ else
+ APEXSINK_CFLAGS="-I$ssldir $saved_CPPFLAGS"
+ fi
+ fi
+ fi
+ APEXSINK_LIBS="$APEXSINK_LIBS $LIBS"
+ LIBS="$saved_LIBS"
+])
+
dnl *** BZ2 ***
translit(dnm, m, l) AM_CONDITIONAL(USE_BZ2, true)
AG_GST_CHECK_FEATURE(BZ2, [bz2 library], bz2, [
@@ -1146,6 +1269,7 @@ AM_CONDITIONAL(USE_QUICKTIME, false)
AM_CONDITIONAL(USE_VCD, false)
AM_CONDITIONAL(USE_ALSA, false)
AM_CONDITIONAL(USE_AMRWB, false)
+AM_CONDITIONAL(USE_APEXSINK, false)
AM_CONDITIONAL(USE_BZ2, false)
AM_CONDITIONAL(USE_CDAUDIO, false)
AM_CONDITIONAL(USE_CELT, false)
@@ -1308,6 +1432,7 @@ examples/directfb/Makefile
examples/switch/Makefile
ext/amrwb/Makefile
ext/alsaspdif/Makefile
+ext/apexsink/Makefile
ext/bz2/Makefile
ext/cdaudio/Makefile
ext/celt/Makefile
diff --git a/ext/apexsink/LGPL-3.0.txt b/ext/apexsink/LGPL-3.0.txt
new file mode 100644
index 00000000..fc8a5de7
--- /dev/null
+++ b/ext/apexsink/LGPL-3.0.txt
@@ -0,0 +1,165 @@
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+ This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+ 0. Additional Definitions.
+
+ As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+ "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+ An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+ A "Combined Work" is a work produced by combining or linking an
+Application with the Library. The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+ The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+ The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+ 1. Exception to Section 3 of the GNU GPL.
+
+ You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+ 2. Conveying Modified Versions.
+
+ If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+ a) under this License, provided that you make a good faith effort to
+ ensure that, in the event an Application does not supply the
+ function or data, the facility still operates, and performs
+ whatever part of its purpose remains meaningful, or
+
+ b) under the GNU GPL, with none of the additional permissions of
+ this License applicable to that copy.
+
+ 3. Object Code Incorporating Material from Library Header Files.
+
+ The object code form of an Application may incorporate material from
+a header file that is part of the Library. You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+ a) Give prominent notice with each copy of the object code that the
+ Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the object code with a copy of the GNU GPL and this license
+ document.
+
+ 4. Combined Works.
+
+ You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+ a) Give prominent notice with each copy of the Combined Work that
+ the Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the Combined Work with a copy of the GNU GPL and this license
+ document.
+
+ c) For a Combined Work that displays copyright notices during
+ execution, include the copyright notice for the Library among
+ these notices, as well as a reference directing the user to the
+ copies of the GNU GPL and this license document.
+
+ d) Do one of the following:
+
+ 0) Convey the Minimal Corresponding Source under the terms of this
+ License, and the Corresponding Application Code in a form
+ suitable for, and under terms that permit, the user to
+ recombine or relink the Application with a modified version of
+ the Linked Version to produce a modified Combined Work, in the
+ manner specified by section 6 of the GNU GPL for conveying
+ Corresponding Source.
+
+ 1) Use a suitable shared library mechanism for linking with the
+ Library. A suitable mechanism is one that (a) uses at run time
+ a copy of the Library already present on the user's computer
+ system, and (b) will operate properly with a modified version
+ of the Library that is interface-compatible with the Linked
+ Version.
+
+ e) Provide Installation Information, but only if you would otherwise
+ be required to provide such information under section 6 of the
+ GNU GPL, and only to the extent that such information is
+ necessary to install and execute a modified version of the
+ Combined Work produced by recombining or relinking the
+ Application with a modified version of the Linked Version. (If
+ you use option 4d0, the Installation Information must accompany
+ the Minimal Corresponding Source and Corresponding Application
+ Code. If you use option 4d1, you must provide the Installation
+ Information in the manner specified by section 6 of the GNU GPL
+ for conveying Corresponding Source.)
+
+ 5. Combined Libraries.
+
+ You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+ a) Accompany the combined library with a copy of the same work based
+ on the Library, uncombined with any other library facilities,
+ conveyed under the terms of this License.
+
+ b) Give prominent notice with the combined library that part of it
+ is a work based on the Library, and explaining where to find the
+ accompanying uncombined form of the same work.
+
+ 6. Revised Versions of the GNU Lesser General Public License.
+
+ The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+ If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/ext/apexsink/Makefile.am b/ext/apexsink/Makefile.am
new file mode 100644
index 00000000..2b8ca57d
--- /dev/null
+++ b/ext/apexsink/Makefile.am
@@ -0,0 +1,8 @@
+plugin_LTLIBRARIES = libgstapexsink.la
+
+libgstapexsink_la_SOURCES = gstapexplugin.c gstapexraop.c gstapexsink.c
+libgstapexsink_la_CFLAGS = $(APEXSINK_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
+libgstapexsink_la_LIBADD = $(APEXSINK_LIBS) $(GST_PLUGINS_BASE_LIBS) $(GST_LIBS) -lgstaudio-$(GST_MAJORMINOR) -lgstinterfaces-$(GST_MAJORMINOR)
+libgstapexsink_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+noinst_HEADERS = gstapexraop.h gstapexsink.h
diff --git a/ext/apexsink/gstapexplugin.c b/ext/apexsink/gstapexplugin.c
new file mode 100644
index 00000000..014d5a2d
--- /dev/null
+++ b/ext/apexsink/gstapexplugin.c
@@ -0,0 +1,44 @@
+/* GStreamer AirPort Express Plugin
+ *
+ * Copyright (C) 2008 Jérémie Bernard [GRemi] <gremimail@gmail.com>
+ *
+ * gstapexpugin.c
+ *
+ * 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.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+#include <gstapexsink.h>
+
+static gboolean
+plugin_init (GstPlugin * plugin)
+{
+ return gst_element_register (plugin, GST_APEX_SINK_NAME, GST_RANK_PRIMARY,
+ GST_TYPE_APEX_SINK);
+}
+
+/* plugin export resolution */
+GST_PLUGIN_DEFINE
+ (GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "apex",
+ "Apple AirPort Express Plugin",
+ plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
diff --git a/ext/apexsink/gstapexraop.c b/ext/apexsink/gstapexraop.c
new file mode 100644
index 00000000..164a4ccf
--- /dev/null
+++ b/ext/apexsink/gstapexraop.c
@@ -0,0 +1,690 @@
+/* GStreamer - Remote Audio Access Protocol (RAOP) as used in Apple iTunes to stream music to the Airport Express (ApEx) -
+ *
+ * RAOP is based on the Real Time Streaming Protocol (RTSP) but with an extra challenge-response RSA based authentication step.
+ * This interface accepts RAW PCM data and set it as AES encrypted ALAC while performing emission.
+ *
+ * Copyright (C) 2008 Jérémie Bernard [GRemi] <gremimail@gmail.com>
+ *
+ * gstapexraop.c
+ *
+ * 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.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstapexraop.h"
+
+/* private constants */
+#define GST_APEX_RAOP_VOLUME_MIN -144
+#define GST_APEX_RAOP_VOLUME_MAX 0
+
+#define GST_APEX_RAOP_HDR_DEFAULT_LENGTH 1024
+#define GST_APEX_RAOP_SDP_DEFAULT_LENGTH 2048
+
+const static gchar GST_APEX_RAOP_RSA_PUBLIC_MOD[] =
+ "59dE8qLieItsH1WgjrcFRKj6eUWqi+bGLOX1HL3U3GhC/j0Qg90u3sG/1CUtwC"
+ "5vOYvfDmFI6oSFXi5ELabWJmT2dKHzBJKa3k9ok+8t9ucRqMd6DZHJ2YCCLlDR"
+ "KSKv6kDqnw4UwPdpOMXziC/AMj3Z/lUVX1G7WSHCAWKf1zNS1eLvqr+boEjXuB"
+ "OitnZ/bDzPHrTOZz0Dew0uowxf/+sG+NCK3eQJVxqcaJ/vEHKIVd2M+5qL71yJ"
+ "Q+87X6oV3eaYvt3zWZYD6z5vYTcrtij2VZ9Zmni/UAaHqn9JdsBWLUEpVviYnh"
+ "imNVvYFZeCXg/IdTQ+x4IRdiXNv5hEew==";
+
+const static gchar GST_APEX_RAOP_RSA_PUBLIC_EXP[] = "AQAB";
+
+const static gchar GST_APEX_RAOP_USER_AGENT[] =
+ "iTunes/4.6 (Macintosh; U; PPC Mac OS X 10.3)";
+
+const static guchar GST_APEX_RAOP_FRAME_HEADER[] = {
+ 0x24, 0x00, 0x00, 0x00,
+ 0xF0, 0xFF, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00
+};
+
+const static int GST_APEX_RAOP_FRAME_HEADER_SIZE = 16;
+
+const static int GST_APEX_RAOP_ALAC_HEADER_SIZE = 3;
+
+/* string extra utility */
+static gint
+g_strdel (gchar * str, gchar rc)
+{
+ int i = 0, j = 0, len, num = 0;
+ len = strlen (str);
+ while (i < len) {
+ if (str[i] == rc) {
+ for (j = i; j < len; j++)
+ str[j] = str[j + 1];
+ len--;
+ num++;
+ } else {
+ i++;
+ }
+ }
+ return num;
+}
+
+/* socket utilities */
+static int
+gst_apexraop_send (int desc, void *data, size_t len)
+{
+ int total = 0, bytesleft = len, n = 0;
+
+ while (total < len) {
+ n = send (desc, ((const char *) data) + total, bytesleft, 0);
+ if (n == -1)
+ break;
+ total += n;
+ bytesleft -= n;
+ }
+
+ return n == -1 ? -1 : total;
+}
+
+static int
+gst_apexraop_recv (int desc, void *data, size_t len)
+{
+ bzero (data, len);
+ return recv (desc, data, len, 0);
+}
+
+/* public opaque handle resolution */
+typedef struct
+{
+ guchar aes_ky[AES_BLOCK_SIZE]; /* AES random key */
+ guchar aes_iv[AES_BLOCK_SIZE]; /* AES random initial vector */
+
+ guchar url_abspath[16]; /* header url random absolute path addon, ANNOUNCE id */
+ gint cseq; /* header rtsp inc cseq */
+ guchar cid[24]; /* header client instance id */
+ gchar *session; /* header raop negotiated session id, once SETUP performed */
+ gchar *ua; /* header user agent */
+
+ GstApExJackType jack_type; /* APEX connected jack type, once ANNOUNCE performed */
+ GstApExJackStatus jack_status; /* APEX connected jack status, once ANNOUNCE performed */
+
+ gchar *host; /* APEX target ip */
+ guint ctrl_port; /* APEX target control port */
+ guint data_port; /* APEX negotiated data port, once SETUP performed */
+
+ int ctrl_sd; /* control socket */
+ struct sockaddr_in ctrl_sd_in;
+
+ int data_sd; /* data socket */
+ struct sockaddr_in data_sd_in;
+}
+_GstApExRAOP;
+
+/* raop apex struct allocation */
+GstApExRAOP *
+gst_apexraop_new (const gchar * host, const guint16 port)
+{
+ _GstApExRAOP *apexraop;
+
+ apexraop = (_GstApExRAOP *) g_malloc0 (sizeof (_GstApExRAOP));
+
+ apexraop->host = g_strdup (host);
+ apexraop->ctrl_port = port;
+ apexraop->ua = g_strdup (GST_APEX_RAOP_USER_AGENT);
+ apexraop->jack_type = GST_APEX_JACK_TYPE_UNDEFINED;
+ apexraop->jack_status = GST_APEX_JACK_STATUS_DISCONNECTED;
+
+ return (GstApExRAOP *) apexraop;
+}
+
+/* raop apex struct freeing */
+void
+gst_apexraop_free (GstApExRAOP * con)
+{
+ _GstApExRAOP *conn;
+ conn = (_GstApExRAOP *) con;
+
+ g_free (conn->host);
+ g_free (conn->session);
+ g_free (conn->ua);
+ g_free (conn);
+}
+
+/* host affectation */
+void
+gst_apexraop_set_host (GstApExRAOP * con, const gchar * host)
+{
+ _GstApExRAOP *conn;
+ conn = (_GstApExRAOP *) con;
+
+ g_free (conn->host);
+ conn->host = g_strdup (host);
+}
+
+/* host reader */
+gchar *
+gst_apexraop_get_host (GstApExRAOP * con)
+{
+ _GstApExRAOP *conn;
+ conn = (_GstApExRAOP *) con;
+
+ return g_strdup (conn->host);
+}
+
+/* control port affectation */
+void
+gst_apexraop_set_port (GstApExRAOP * con, const guint16 port)
+{
+ _GstApExRAOP *conn;
+ conn = (_GstApExRAOP *) con;
+
+ conn->ctrl_port = port;
+}
+
+/* control port reader */
+guint16
+gst_apexraop_get_port (GstApExRAOP * con)
+{
+ _GstApExRAOP *conn;
+ conn = (_GstApExRAOP *) con;
+
+ return conn->ctrl_port;
+}
+
+/* user agent affectation */
+void
+gst_apexraop_set_useragent (GstApExRAOP * con, const gchar * useragent)
+{
+ _GstApExRAOP *conn;
+ conn = (_GstApExRAOP *) con;
+
+ g_free (conn->ua);
+ conn->ua = g_strdup (useragent);
+}
+
+/* user agent reader */
+gchar *
+gst_apexraop_get_useragent (GstApExRAOP * con)
+{
+ _GstApExRAOP *conn;
+ conn = (_GstApExRAOP *) con;
+
+ return g_strdup (conn->ua);
+}
+
+/* raop apex connection sequence */
+GstRTSPStatusCode
+gst_apexraop_connect (GstApExRAOP * con)
+{
+ gchar *ac, *ky, *iv, *s, inaddr[INET_ADDRSTRLEN],
+ creq[GST_APEX_RAOP_SDP_DEFAULT_LENGTH],
+ hreq[GST_APEX_RAOP_HDR_DEFAULT_LENGTH], *req;
+ RSA *rsa;
+ guchar *mod, *exp, buf[4 + 8 + 16], rsakey[512];
+ gsize size;
+ struct sockaddr_in ioaddr;
+ socklen_t iolen;
+ GstRTSPStatusCode res;
+ _GstApExRAOP *conn;
+
+ conn = (_GstApExRAOP *) con;
+
+ if ((conn->ctrl_sd = socket (AF_INET, SOCK_STREAM, 0)) < 0)
+ return GST_RTSP_STS_DESTINATION_UNREACHABLE;
+
+ conn->ctrl_sd_in.sin_family = AF_INET;
+ conn->ctrl_sd_in.sin_port = htons (conn->ctrl_port);
+
+ if (!inet_aton (conn->host, &conn->ctrl_sd_in.sin_addr)) {
+ struct hostent *hp = (struct hostent *) gethostbyname (conn->host);
+ if (hp == NULL)
+ return GST_RTSP_STS_DESTINATION_UNREACHABLE;
+ memcpy (&conn->ctrl_sd_in.sin_addr, hp->h_addr, hp->h_length);
+ }
+
+ if (connect (conn->ctrl_sd, (struct sockaddr *) &conn->ctrl_sd_in,
+ sizeof (conn->ctrl_sd_in)) < 0)
+ return GST_RTSP_STS_DESTINATION_UNREACHABLE;
+
+ RAND_bytes (buf, sizeof (buf));
+ sprintf ((gchar *) conn->url_abspath, "%lu", *((gulong *) buf));
+ ac = g_base64_encode (buf + 12, 16);
+ g_strdel (ac, '=');
+ sprintf ((char *) conn->cid, "%08lx%08lx", *((gulong *) (buf + 4)),
+ *((gulong *) (buf + 8)));
+
+ RAND_bytes (conn->aes_ky, AES_BLOCK_SIZE);
+ RAND_bytes (conn->aes_iv, AES_BLOCK_SIZE);
+
+ rsa = RSA_new ();
+ mod = g_base64_decode (GST_APEX_RAOP_RSA_PUBLIC_MOD, &size);
+ rsa->n = BN_bin2bn (mod, size, NULL);
+ exp = g_base64_decode (GST_APEX_RAOP_RSA_PUBLIC_EXP, &size);
+ rsa->e = BN_bin2bn (exp, size, NULL);
+ size =
+ RSA_public_encrypt (AES_BLOCK_SIZE, conn->aes_ky, rsakey, rsa,
+ RSA_PKCS1_OAEP_PADDING);
+
+ ky = g_base64_encode (rsakey, size);
+ iv = g_base64_encode (conn->aes_iv, AES_BLOCK_SIZE);
+ g_strdel (ky, '=');
+ g_strdel (iv, '=');
+
+ iolen = sizeof (struct sockaddr);
+ getsockname (conn->ctrl_sd, (struct sockaddr *) &ioaddr, &iolen);
+ inet_ntop (AF_INET, &(ioaddr.sin_addr), inaddr, INET_ADDRSTRLEN);
+
+ sprintf (creq,
+ "v=0\r\n"
+ "o=iTunes %s 0 IN IP4 %s\r\n"
+ "s=iTunes\r\n"
+ "c=IN IP4 %s\r\n"
+ "t=0 0\r\n"
+ "m=audio 0 RTP/AVP 96\r\n"
+ "a=rtpmap:96 AppleLossless\r\n"
+ "a=fmtp:96 %d 0 %d 40 10 14 %d 255 0 0 %d\r\n"
+ "a=rsaaeskey:%s\r\n"
+ "a=aesiv:%s\r\n",
+ conn->url_abspath,
+ inaddr,
+ conn->host,
+ GST_APEX_RAOP_SAMPLES_PER_FRAME,
+ GST_APEX_RAOP_BYTES_PER_CHANNEL * 8,
+ GST_APEX_RAOP_CHANNELS, GST_APEX_RAOP_BITRATE, ky, iv);
+
+ sprintf (hreq,
+ "ANNOUNCE rtsp://%s/%s RTSP/1.0\r\n"
+ "CSeq: %d\r\n"
+ "Client-Instance: %s\r\n"
+ "User-Agent: %s\r\n"
+ "Content-Type: application/sdp\r\n"
+ "Content-Length: %d\r\n"
+ "Apple-Challenge: %s\r\n",
+ conn->host,
+ conn->url_abspath, ++conn->cseq, conn->cid, conn->ua, strlen (creq), ac);
+
+ RSA_free (rsa);
+ g_free (ky);
+ g_free (iv);
+ g_free (ac);
+ g_free (mod);
+ g_free (exp);
+
+ req = g_strconcat (hreq, "\r\n", creq, NULL);
+
+ if (gst_apexraop_send (conn->ctrl_sd, req, strlen (req)) <= 0) {
+ g_free (req);
+ return GST_RTSP_STS_GONE;
+ }
+
+ g_free (req);
+
+ if (gst_apexraop_recv (conn->ctrl_sd, hreq,
+ GST_APEX_RAOP_HDR_DEFAULT_LENGTH) <= 0)
+ return GST_RTSP_STS_GONE;
+
+ sscanf (hreq, "%*s %d", (int *) &res);
+
+ if (res != GST_RTSP_STS_OK)
+ return res;
+
+ s = g_strrstr (hreq, "Audio-Jack-Status");
+
+ if (s != NULL) {
+ gchar status[128];
+ sscanf (s, "%*s %s", status);
+
+ if (strcmp (status, "connected;") == 0)
+ conn->jack_status = GST_APEX_JACK_STATUS_CONNECTED;
+ else if (strcmp (status, "disconnected;") == 0)
+ conn->jack_status = GST_APEX_JACK_STATUS_DISCONNECTED;
+ else
+ conn->jack_status = GST_APEX_JACK_STATUS_UNDEFINED;
+
+ s = g_strrstr (s, "type=");
+
+ if (s != NULL) {
+ strtok (s, "=");
+ s = strtok (NULL, "\n");
+
+ if (strcmp (s, "analog"))
+ conn->jack_type = GST_APEX_JACK_TYPE_ANALOG;
+ else if (strcmp (s, "digital"))
+ conn->jack_type = GST_APEX_JACK_TYPE_DIGITAL;
+ else
+ conn->jack_type = GST_APEX_JACK_TYPE_UNDEFINED;
+ }
+ }
+
+ sprintf (hreq,
+ "SETUP rtsp://%s/%s RTSP/1.0\r\n"
+ "CSeq: %d\r\n"
+ "Client-Instance: %s\r\n"
+ "User-Agent: %s\r\n"
+ "Transport: RTP/AVP/TCP;unicast;interleaved=0-1;mode=record\r\n"
+ "\r\n", conn->host, conn->url_abspath, ++conn->cseq, conn->cid, conn->ua);
+
+ if (gst_apexraop_send (conn->ctrl_sd, hreq, strlen (hreq)) <= 0)
+ return GST_RTSP_STS_GONE;
+
+ if (gst_apexraop_recv (conn->ctrl_sd, hreq,
+ GST_APEX_RAOP_HDR_DEFAULT_LENGTH) <= 0)
+ return GST_RTSP_STS_GONE;
+
+ sscanf (hreq, "%*s %d", (int *) &res);
+
+ if (res != GST_RTSP_STS_OK)
+ return res;
+
+ s = g_strrstr (hreq, "Session");
+
+ if (s != NULL) {
+ gchar session[128];
+ sscanf (s, "%*s %s", session);
+ conn->session = g_strdup (session);
+ } else
+ return GST_RTSP_STS_PRECONDITION_FAILED;
+
+ s = g_strrstr (hreq, "server_port");
+ if (s != NULL) {
+ sscanf (s, "server_port=%d", &conn->data_port);
+ } else
+ return GST_RTSP_STS_PRECONDITION_FAILED;
+
+ sprintf (hreq,
+ "RECORD rtsp://%s/%s RTSP/1.0\r\n"
+ "CSeq: %d\r\n"
+ "Client-Instance: %s\r\n"
+ "User-Agent: %s\r\n"
+ "Session: %s\r\n"
+ "Range: npt=0-\r\n"
+ "RTP-Info: seq=0;rtptime=0\r\n"
+ "\r\n",
+ conn->host,
+ conn->url_abspath, ++conn->cseq, conn->cid, conn->ua, conn->session);
+
+ if (gst_apexraop_send (conn->ctrl_sd, hreq, strlen (hreq)) <= 0)
+ return GST_RTSP_STS_GONE;
+
+ if (gst_apexraop_recv (conn->ctrl_sd, hreq,
+ GST_APEX_RAOP_HDR_DEFAULT_LENGTH) <= 0)
+ return GST_RTSP_STS_GONE;
+
+ sscanf (hreq, "%*s %d", (int *) &res);
+
+ if (res != GST_RTSP_STS_OK)
+ return res;
+
+ if ((conn->data_sd = socket (AF_INET, SOCK_STREAM, 0)) < 0)
+ return GST_RTSP_STS_DESTINATION_UNREACHABLE;
+
+ conn->data_sd_in.sin_family = AF_INET;
+ conn->data_sd_in.sin_port = htons (conn->data_port);
+
+ memcpy (&conn->data_sd_in.sin_addr, &conn->ctrl_sd_in.sin_addr,
+ sizeof (conn->ctrl_sd_in.sin_addr));
+
+ if (connect (conn->data_sd, (struct sockaddr *) &conn->data_sd_in,
+ sizeof (conn->data_sd_in)) < 0)
+ return GST_RTSP_STS_DESTINATION_UNREACHABLE;
+
+ return res;
+}
+
+/* raop apex jack type access */
+GstApExJackType
+gst_apexraop_get_jacktype (GstApExRAOP * con)
+{
+ _GstApExRAOP *conn;
+
+ conn = (_GstApExRAOP *) con;
+
+ if (!conn)
+ return GST_APEX_JACK_TYPE_UNDEFINED;
+
+ return conn->jack_type;
+}
+
+/* raop apex jack status access */
+GstApExJackStatus
+gst_apexraop_get_jackstatus (GstApExRAOP * con)
+{
+ _GstApExRAOP *conn;
+
+ conn = (_GstApExRAOP *) con;
+
+ if (!conn)
+ return GST_APEX_JACK_STATUS_UNDEFINED;
+
+ return conn->jack_status;
+}
+
+/* raop apex sockets close */
+void
+gst_apexraop_close (GstApExRAOP * con)
+{
+ gchar hreq[GST_APEX_RAOP_HDR_DEFAULT_LENGTH];
+ _GstApExRAOP *conn;
+
+ conn = (_GstApExRAOP *) con;
+
+ sprintf (hreq,
+ "TEARDOWN rtsp://%s/%s RTSP/1.0\r\n"
+ "CSeq: %d\r\n"
+ "Client-Instance: %s\r\n"
+ "User-Agent: %s\r\n"
+ "Session: %s\r\n"
+ "\r\n",
+ conn->host,
+ conn->url_abspath, ++conn->cseq, conn->cid, conn->ua, conn->session);
+
+ gst_apexraop_send (conn->ctrl_sd, hreq, strlen (hreq));
+ gst_apexraop_recv (conn->ctrl_sd, hreq, GST_APEX_RAOP_HDR_DEFAULT_LENGTH);
+
+ if (conn->ctrl_sd != 0)
+ close (conn->ctrl_sd);
+ if (conn->data_sd != 0)
+ close (conn->data_sd);
+}
+
+/* raop apex volume set */
+GstRTSPStatusCode
+gst_apexraop_set_volume (GstApExRAOP * con, const guint volume)
+{
+ gint v;
+ gchar creq[GST_APEX_RAOP_SDP_DEFAULT_LENGTH],
+ hreq[GST_APEX_RAOP_HDR_DEFAULT_LENGTH], *req, vol[128];
+ GstRTSPStatusCode res;
+ _GstApExRAOP *conn;
+
+ conn = (_GstApExRAOP *) con;
+
+ v = GST_APEX_RAOP_VOLUME_MIN + (GST_APEX_RAOP_VOLUME_MAX -
+ GST_APEX_RAOP_VOLUME_MIN) * volume / 100.;
+ sprintf (vol, "volume: %d.000000\r\n", v);
+
+ sprintf (creq, "%s\r\n", vol);
+
+ sprintf (hreq,
+ "SET_PARAMETER rtsp://%s/%s RTSP/1.0\r\n"
+ "CSeq: %d\r\n"
+ "Client-Instance: %s\r\n"
+ "User-Agent: %s\r\n"
+ "Session: %s\r\n"
+ "Content-Type: text/parameters\r\n"
+ "Content-Length: %d\r\n",
+ conn->host,
+ conn->url_abspath,
+ ++conn->cseq, conn->cid, conn->ua, conn->session, strlen (creq)
+ );
+
+ req = g_strconcat (hreq, "\r\n", creq, NULL);
+
+ if (gst_apexraop_send (conn->ctrl_sd, req, strlen (req)) <= 0) {
+ g_free (req);
+ return GST_RTSP_STS_GONE;
+ }
+
+ g_free (req);
+
+ if (gst_apexraop_recv (conn->ctrl_sd, hreq,
+ GST_APEX_RAOP_HDR_DEFAULT_LENGTH) <= 0)
+ return GST_RTSP_STS_GONE;
+
+ sscanf (hreq, "%*s %d", (int *) &res);
+
+ return res;
+}
+
+/* raop apex raw data alac encapsulation, encryption and emission, http://wiki.multimedia.cx/index.php?title=Apple_Lossless_Audio_Coding */
+static void inline
+gst_apexraop_write_bits (guchar * buffer, int data, int numbits,
+ int *bit_offset, int *byte_offset)
+{
+ const static guchar masks[] =
+ { 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF };
+
+ if (((*bit_offset) != 0) && (((*bit_offset) + numbits) > 8)) {
+ gint numwritebits;
+ guchar bitstowrite;
+
+ numwritebits = 8 - (*bit_offset);
+ bitstowrite =
+ (guchar) ((data >> (numbits - numwritebits)) << (8 - (*bit_offset) -
+ numwritebits));
+ buffer[(*byte_offset)] |= bitstowrite;
+ numbits -= numwritebits;
+ (*bit_offset) = 0;
+ (*byte_offset)++;
+ }
+
+ while (numbits >= 8) {
+ guchar bitstowrite;
+
+ bitstowrite = (guchar) ((data >> (numbits - 8)) & 0xFF);
+ buffer[(*byte_offset)] |= bitstowrite;
+ numbits -= 8;
+ (*bit_offset) = 0;
+ (*byte_offset)++;
+ }
+
+ if (numbits > 0) {
+ guchar bitstowrite;
+ bitstowrite =
+ (guchar) ((data & masks[numbits]) << (8 - (*bit_offset) - numbits));
+ buffer[(*byte_offset)] |= bitstowrite;
+ (*bit_offset) += numbits;
+ if ((*bit_offset) == 8) {
+ (*byte_offset)++;
+ (*bit_offset) = 0;
+ }
+ }
+}
+
+guint
+gst_apexraop_write (GstApExRAOP * con, gpointer rawdata, guint length)
+{
+ guchar *buffer, *frame_data;
+ gushort len;
+ gint bit_offset, byte_offset, i, out_len, res;
+ EVP_CIPHER_CTX aes_ctx;
+ _GstApExRAOP *conn;
+
+ conn = (_GstApExRAOP *) con;
+
+ buffer =
+ (guchar *) g_malloc0 (GST_APEX_RAOP_FRAME_HEADER_SIZE +
+ GST_APEX_RAOP_ALAC_HEADER_SIZE + length);
+
+ memcpy (buffer, GST_APEX_RAOP_FRAME_HEADER, GST_APEX_RAOP_FRAME_HEADER_SIZE);
+
+ len =
+ length + GST_APEX_RAOP_FRAME_HEADER_SIZE +
+ GST_APEX_RAOP_ALAC_HEADER_SIZE - 4;
+ buffer[2] = len >> 8;
+ buffer[3] = len & 0xff;
+
+ bit_offset = 0;
+ byte_offset = 0;
+ frame_data = buffer + GST_APEX_RAOP_FRAME_HEADER_SIZE;
+
+ gst_apexraop_write_bits (frame_data, 1, 3, &bit_offset, &byte_offset); /* channels, 0 mono, 1 stereo */
+ gst_apexraop_write_bits (frame_data, 0, 4, &bit_offset, &byte_offset); /* unknown */
+ gst_apexraop_write_bits (frame_data, 0, 8, &bit_offset, &byte_offset); /* unknown (12 bits) */
+ gst_apexraop_write_bits (frame_data, 0, 4, &bit_offset, &byte_offset);
+ gst_apexraop_write_bits (frame_data, 0, 1, &bit_offset, &byte_offset); /* has size flag */
+ gst_apexraop_write_bits (frame_data, 0, 2, &bit_offset, &byte_offset); /* unknown */
+ gst_apexraop_write_bits (frame_data, 1, 1, &bit_offset, &byte_offset); /* no compression flag */
+
+ for (i = 0; i < length; i += 2) {
+ gst_apexraop_write_bits (frame_data, ((guchar *) rawdata)[i + 1], 8,
+ &bit_offset, &byte_offset);
+ gst_apexraop_write_bits (frame_data, ((guchar *) rawdata)[i], 8,
+ &bit_offset, &byte_offset);
+ }
+
+ EVP_CIPHER_CTX_init (&aes_ctx);
+ EVP_CipherInit_ex (&aes_ctx, EVP_aes_128_cbc (), NULL, conn->aes_ky,
+ conn->aes_iv, AES_ENCRYPT);
+ EVP_CipherUpdate (&aes_ctx, frame_data, &out_len, frame_data, /*( */
+ GST_APEX_RAOP_ALAC_HEADER_SIZE +
+ length /*) / AES_BLOCK_SIZE * AES_BLOCK_SIZE */ );
+ EVP_CIPHER_CTX_cleanup (&aes_ctx);
+
+ res =
+ gst_apexraop_send (conn->data_sd, buffer,
+ GST_APEX_RAOP_FRAME_HEADER_SIZE + GST_APEX_RAOP_ALAC_HEADER_SIZE +
+ length);
+
+ g_free (buffer);
+
+ return (guint) ((res >=
+ (GST_APEX_RAOP_FRAME_HEADER_SIZE +
+ GST_APEX_RAOP_ALAC_HEADER_SIZE)) ? (res -
+ GST_APEX_RAOP_FRAME_HEADER_SIZE -
+ GST_APEX_RAOP_ALAC_HEADER_SIZE) : 0);
+}
+
+/* raop apex buffer flush */
+GstRTSPStatusCode
+gst_apexraop_flush (GstApExRAOP * con)
+{
+ gchar hreq[GST_APEX_RAOP_HDR_DEFAULT_LENGTH];
+ GstRTSPStatusCode res;
+ _GstApExRAOP *conn;
+
+ conn = (_GstApExRAOP *) con;
+
+ sprintf (hreq,
+ "FLUSH rtsp://%s/%s RTSP/1.0\r\n"
+ "CSeq: %d\r\n"
+ "Client-Instance: %s\r\n"
+ "User-Agent: %s\r\n"
+ "Session: %s\r\n"
+ "RTP-Info: seq=0;rtptime=0\r\n"
+ "\r\n",
+ conn->host,
+ conn->url_abspath, ++conn->cseq, conn->cid, conn->ua, conn->session);
+
+ if (gst_apexraop_send (conn->ctrl_sd, hreq, strlen (hreq)) <= 0)
+ return GST_RTSP_STS_GONE;
+
+ if (gst_apexraop_recv (conn->ctrl_sd, hreq,
+ GST_APEX_RAOP_HDR_DEFAULT_LENGTH) <= 0)
+ return GST_RTSP_STS_GONE;
+
+ sscanf (hreq, "%*s %d", (int *) &res);
+
+ return res;
+}
diff --git a/ext/apexsink/gstapexraop.h b/ext/apexsink/gstapexraop.h
new file mode 100644
index 00000000..fe1ba41b
--- /dev/null
+++ b/ext/apexsink/gstapexraop.h
@@ -0,0 +1,124 @@
+/* GStreamer - Remote Audio Access Protocol (RAOP) as used in Apple iTunes to stream music to the Airport Express (ApEx) -
+ *
+ * RAOP is based on the Real Time Streaming Protocol (RTSP) but with an extra challenge-response RSA based authentication step.
+ * This interface accepts RAW PCM data and set it as AES encrypted ALAC while performing emission.
+ *
+ * Copyright (C) 2008 Jérémie Bernard [GRemi] <gremimail@gmail.com>
+ *
+ * gstapexraop.h
+ *
+ * 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_APEXRAOP_H__
+#define __GST_APEXRAOP_H__
+
+#include <gst/gst.h>
+#include <gst/rtsp/gstrtspdefs.h>
+
+#include <openssl/rand.h>
+#include <openssl/rsa.h>
+#include <openssl/aes.h>
+#include <openssl/evp.h>
+
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <netinet/in.h>
+#include <netdb.h>
+
+#include <arpa/inet.h>
+
+G_BEGIN_DECLS
+
+/* raop fixed parameters */
+#define GST_APEX_RAOP_BITRATE 44100
+#define GST_APEX_RAOP_SAMPLES_PER_FRAME 4096
+#define GST_APEX_RAOP_BYTES_PER_CHANNEL 2
+#define GST_APEX_RAOP_CHANNELS 2
+#define GST_APEX_RAOP_BYTES_PER_SAMPLE (GST_APEX_RAOP_CHANNELS * GST_APEX_RAOP_BYTES_PER_CHANNEL)
+
+/* gst associated caps fields specification */
+#define GST_APEX_RAOP_INPUT_TYPE "audio/x-raw-int"
+#define GST_APEX_RAOP_INPUT_WIDTH "16"
+#define GST_APEX_RAOP_INPUT_DEPTH GST_APEX_RAOP_INPUT_WIDTH
+#define GST_APEX_RAOP_INPUT_ENDIAN "LITTLE_ENDIAN"
+#define GST_APEX_RAOP_INPUT_CHANNELS "2"
+#define GST_APEX_RAOP_INPUT_BIT_RATE "44100"
+#define GST_APEX_RAOP_INPUT_SIGNED "TRUE"
+
+typedef enum
+{
+ GST_APEX_JACK_TYPE_UNDEFINED = 0,
+ GST_APEX_JACK_TYPE_ANALOG,
+ GST_APEX_JACK_TYPE_DIGITAL,
+}
+GstApExJackType;
+
+typedef enum
+{
+ GST_APEX_JACK_STATUS_UNDEFINED = 0,
+ GST_APEX_JACK_STATUS_DISCONNECTED,
+ GST_APEX_JACK_STATUS_CONNECTED,
+}
+GstApExJackStatus;
+
+/* raop context handle */
+typedef struct
+{
+} GstApExRAOP;
+
+/* host might be null and port might be 0 while instanciating */
+GstApExRAOP *gst_apexraop_new (const gchar * host, const guint16 port);
+void gst_apexraop_free (GstApExRAOP * conn);
+
+/* must not be connected yet while setting the host target */
+void gst_apexraop_set_host (GstApExRAOP * conn, const gchar * host);
+gchar *gst_apexraop_get_host (GstApExRAOP * conn);
+
+/* must not be connected yet while setting the port target */
+void gst_apexraop_set_port (GstApExRAOP * conn, const guint16 port);
+guint16 gst_apexraop_get_port (GstApExRAOP * conn);
+
+/* optional affectation, default iTunes user agent internaly used */
+void gst_apexraop_set_useragent (GstApExRAOP * conn, const gchar * useragent);
+gchar *gst_apexraop_get_useragent (GstApExRAOP * conn);
+
+/* once allocation and configuration performed, manages the raop ANNOUNCE, SETUP and RECORD sequences,
+ * open both ctrl and data channels */
+GstRTSPStatusCode gst_apexraop_connect (GstApExRAOP * conn);
+
+/* close the currently used session, manages raop TEARDOWN sequence and closes the used sockets */
+void gst_apexraop_close (GstApExRAOP * conn);
+
+/* once connected, set the apex target volume, manages SET_PARAMETER sequence */
+GstRTSPStatusCode gst_apexraop_set_volume (GstApExRAOP * conn,
+ const guint volume);
+
+/* write raw samples typed as defined by the fixed raop parameters, flush the apex buffer */
+guint gst_apexraop_write (GstApExRAOP * conn, gpointer rawdata, guint length);
+GstRTSPStatusCode gst_apexraop_flush (GstApExRAOP * conn);
+
+/* retrieve the connected apex jack type and status */
+GstApExJackType gst_apexraop_get_jacktype (GstApExRAOP * conn);
+GstApExJackStatus gst_apexraop_get_jackstatus (GstApExRAOP * conn);
+
+G_END_DECLS
+
+#endif
+
diff --git a/ext/apexsink/gstapexsink.c b/ext/apexsink/gstapexsink.c
new file mode 100644
index 00000000..5957093d
--- /dev/null
+++ b/ext/apexsink/gstapexsink.c
@@ -0,0 +1,571 @@
+/* GStreamer - AirPort Express Audio Sink -
+ *
+ * Remote Audio Access Protocol (RAOP) as used in Apple iTunes to stream music to the Airport Express (ApEx) -
+ * RAOP is based on the Real Time Streaming Protocol (RTSP) but with an extra challenge-response RSA based authentication step.
+ *
+ * RAW PCM input only as defined by the following GST_STATIC_PAD_TEMPLATE
+ *
+ * Copyright (C) 2008 Jérémie Bernard [GRemi] <gremimail@gmail.com>
+ *
+ * gstapexsink.c
+ *
+ * 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.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstapexsink.h"
+
+GST_DEBUG_CATEGORY_STATIC (apexsink_debug);
+#define GST_CAT_DEFAULT apexsink_debug
+
+static GstStaticPadTemplate gst_apexsink_sink_factory = GST_STATIC_PAD_TEMPLATE
+ ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS
+ (GST_APEX_RAOP_INPUT_TYPE ","
+ "width = (int) " GST_APEX_RAOP_INPUT_WIDTH ","
+ "depth = (int) " GST_APEX_RAOP_INPUT_DEPTH ","
+ "endianness = (int) " GST_APEX_RAOP_INPUT_ENDIAN ","
+ "channels = (int) " GST_APEX_RAOP_INPUT_CHANNELS ","
+ "rate = (int) " GST_APEX_RAOP_INPUT_BIT_RATE ","
+ "signed = (boolean) " GST_APEX_RAOP_INPUT_SIGNED)
+ );
+
+
+enum
+{
+ APEX_PROP_HOST = 1,
+ APEX_PROP_PORT,
+ APEX_PROP_VOLUME,
+ APEX_PROP_JACK_TYPE,
+ APEX_PROP_JACK_STATUS,
+};
+
+#define DEFAULT_APEX_HOST ""
+#define DEFAULT_APEX_PORT 5000
+#define DEFAULT_APEX_VOLUME 75
+#define DEFAULT_APEX_JACK_TYPE GST_APEX_JACK_TYPE_UNDEFINED
+#define DEFAULT_APEX_JACK_STATUS GST_APEX_JACK_STATUS_UNDEFINED
+
+/* genum apex jack resolution */
+GType
+gst_apexsink_jackstatus_get_type (void)
+{
+ static GType jackstatus_type = 0;
+ static GEnumValue jackstatus[] = {
+ {GST_APEX_JACK_STATUS_UNDEFINED, "GST_APEX_JACK_STATUS_UNDEFINED",
+ "Jack status undefined"},
+ {GST_APEX_JACK_STATUS_DISCONNECTED, "GST_APEX_JACK_STATUS_DISCONNECTED",
+ "Jack disconnected"},
+ {GST_APEX_JACK_STATUS_CONNECTED, "GST_APEX_JACK_STATUS_CONNECTED",
+ "Jack connected"},
+ {0, NULL, NULL},
+ };
+
+ if (!jackstatus_type) {
+ jackstatus_type = g_enum_register_static ("GstApExJackStatus", jackstatus);
+ }
+
+ return jackstatus_type;
+}
+
+GType
+gst_apexsink_jacktype_get_type (void)
+{
+ static GType jacktype_type = 0;
+ static GEnumValue jacktype[] = {
+ {GST_APEX_JACK_TYPE_UNDEFINED, "GST_APEX_JACK_TYPE_UNDEFINED",
+ "Undefined jack type"},
+ {GST_APEX_JACK_TYPE_ANALOG, "GST_APEX_JACK_TYPE_ANALOG", "Analog jack"},
+ {GST_APEX_JACK_TYPE_DIGITAL, "GST_APEX_JACK_TYPE_DIGITAL", "Digital jack"},
+ {0, NULL, NULL},
+ };
+
+ if (!jacktype_type) {
+ jacktype_type = g_enum_register_static ("GstApExJackType", jacktype);
+ }
+
+ return jacktype_type;
+}
+
+
+static void gst_apexsink_base_init (gpointer g_class);
+static void gst_apexsink_class_init (GstApExSinkClass * klass);
+static void gst_apexsink_init (GstApExSink * apexsink,
+ GstApExSinkClass * g_class);
+
+static void gst_apexsink_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_apexsink_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+static void gst_apexsink_finalise (GObject * object);
+
+static gboolean gst_apexsink_open (GstAudioSink * asink);
+static gboolean gst_apexsink_prepare (GstAudioSink * asink,
+ GstRingBufferSpec * spec);
+static guint gst_apexsink_write (GstAudioSink * asink, gpointer data,
+ guint length);
+static gboolean gst_apexsink_unprepare (GstAudioSink * asink);
+static guint gst_apexsink_delay (GstAudioSink * asink);
+static void gst_apexsink_reset (GstAudioSink * asink);
+static gboolean gst_apexsink_close (GstAudioSink * asink);
+
+/* mixer interface standard api */
+static void gst_apexsink_interfaces_init (GType type);
+static void gst_apexsink_implements_interface_init (GstImplementsInterfaceClass
+ * iface);
+static void gst_apexsink_mixer_interface_init (GstMixerClass * iface);
+
+static gboolean gst_apexsink_interface_supported (GstImplementsInterface *
+ iface, GType iface_type);
+static const GList *gst_apexsink_mixer_list_tracks (GstMixer * mixer);
+static void gst_apexsink_mixer_set_volume (GstMixer * mixer,
+ GstMixerTrack * track, gint * volumes);
+static void gst_apexsink_mixer_get_volume (GstMixer * mixer,
+ GstMixerTrack * track, gint * volumes);
+
+GST_BOILERPLATE_FULL (GstApExSink, gst_apexsink, GstAudioSink,
+ GST_TYPE_AUDIO_SINK, gst_apexsink_interfaces_init);
+
+/* apex sink interface(s) stuff */
+static void
+gst_apexsink_interfaces_init (GType type)
+{
+ static const GInterfaceInfo implements_interface_info =
+ { (GInterfaceInitFunc) gst_apexsink_implements_interface_init, NULL,
+ NULL
+ };
+ static const GInterfaceInfo mixer_interface_info =
+ { (GInterfaceInitFunc) gst_apexsink_mixer_interface_init, NULL, NULL };
+
+ g_type_add_interface_static (type, GST_TYPE_IMPLEMENTS_INTERFACE,
+ &implements_interface_info);
+ g_type_add_interface_static (type, GST_TYPE_MIXER, &mixer_interface_info);
+}
+
+static void
+gst_apexsink_implements_interface_init (GstImplementsInterfaceClass * iface)
+{
+ iface->supported = gst_apexsink_interface_supported;
+}
+
+static void
+gst_apexsink_mixer_interface_init (GstMixerClass * iface)
+{
+ GST_MIXER_TYPE (iface) = GST_MIXER_SOFTWARE;
+
+ iface->list_tracks = gst_apexsink_mixer_list_tracks;
+ iface->set_volume = gst_apexsink_mixer_set_volume;
+ iface->get_volume = gst_apexsink_mixer_get_volume;
+}
+
+static gboolean
+gst_apexsink_interface_supported (GstImplementsInterface * iface,
+ GType iface_type)
+{
+ g_return_val_if_fail (iface_type == GST_TYPE_MIXER, FALSE);
+
+ return TRUE;
+}
+
+static const GList *
+gst_apexsink_mixer_list_tracks (GstMixer * mixer)
+{
+ GstApExSink *apexsink = GST_APEX_SINK (mixer);
+
+ return apexsink->tracks;
+}
+
+static void
+gst_apexsink_mixer_set_volume (GstMixer * mixer, GstMixerTrack * track,
+ gint * volumes)
+{
+ GstApExSink *apexsink = GST_APEX_SINK (mixer);
+
+ apexsink->volume = volumes[0];
+
+ if (apexsink->gst_apexraop != NULL)
+ gst_apexraop_set_volume (apexsink->gst_apexraop, apexsink->volume);
+}
+
+static void
+gst_apexsink_mixer_get_volume (GstMixer * mixer, GstMixerTrack * track,
+ gint * volumes)
+{
+ GstApExSink *apexsink = GST_APEX_SINK (mixer);
+
+ volumes[0] = apexsink->volume;
+}
+
+/* sink base init */
+static void
+gst_apexsink_base_init (gpointer g_class)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+
+ gst_element_class_set_details_simple (element_class,
+ "Apple AirPort Express Audio Sink", "Sink/Audio/Wireless",
+ "Output stream to an AirPort Express",
+ "Jérémie Bernard [GRemi] <gremimail@gmail.com>");
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_apexsink_sink_factory));
+}
+
+/* sink class init */
+static void
+gst_apexsink_class_init (GstApExSinkClass * klass)
+{
+ GST_DEBUG_CATEGORY_INIT (apexsink_debug, GST_APEX_SINK_NAME, 0,
+ "AirPort Express sink");
+
+ parent_class = g_type_class_peek_parent (klass);
+
+ ((GObjectClass *) klass)->get_property =
+ GST_DEBUG_FUNCPTR (gst_apexsink_get_property);
+ ((GObjectClass *) klass)->set_property =
+ GST_DEBUG_FUNCPTR (gst_apexsink_set_property);
+ ((GObjectClass *) klass)->finalize =
+ GST_DEBUG_FUNCPTR (gst_apexsink_finalise);
+
+ ((GstAudioSinkClass *) klass)->open = GST_DEBUG_FUNCPTR (gst_apexsink_open);
+ ((GstAudioSinkClass *) klass)->prepare =
+ GST_DEBUG_FUNCPTR (gst_apexsink_prepare);
+ ((GstAudioSinkClass *) klass)->write = GST_DEBUG_FUNCPTR (gst_apexsink_write);
+ ((GstAudioSinkClass *) klass)->unprepare =
+ GST_DEBUG_FUNCPTR (gst_apexsink_unprepare);
+ ((GstAudioSinkClass *) klass)->delay = GST_DEBUG_FUNCPTR (gst_apexsink_delay);
+ ((GstAudioSinkClass *) klass)->reset = GST_DEBUG_FUNCPTR (gst_apexsink_reset);
+ ((GstAudioSinkClass *) klass)->close = GST_DEBUG_FUNCPTR (gst_apexsink_close);
+
+ g_object_class_install_property ((GObjectClass *) klass, APEX_PROP_HOST,
+ g_param_spec_string ("host", "Host", "AirPort Express target host",
+ DEFAULT_APEX_HOST, G_PARAM_READWRITE));
+ g_object_class_install_property ((GObjectClass *) klass, APEX_PROP_PORT,
+ g_param_spec_uint ("port", "Port", "AirPort Express target port", 0,
+ 32000, DEFAULT_APEX_PORT, G_PARAM_READWRITE));
+ g_object_class_install_property ((GObjectClass *) klass, APEX_PROP_VOLUME,
+ g_param_spec_uint ("volume", "Volume", "AirPort Express target volume", 0,
+ 100, DEFAULT_APEX_VOLUME, G_PARAM_READWRITE));
+ g_object_class_install_property ((GObjectClass *) klass, APEX_PROP_JACK_TYPE,
+ g_param_spec_enum ("jack_type", "Jack Type",
+ "AirPort Express connected jack type", GST_APEX_SINK_JACKTYPE_TYPE,
+ DEFAULT_APEX_JACK_TYPE, G_PARAM_READABLE));
+ g_object_class_install_property ((GObjectClass *) klass,
+ APEX_PROP_JACK_STATUS, g_param_spec_enum ("jack_status", "Jack Status",
+ "AirPort Express jack connection status",
+ GST_APEX_SINK_JACKSTATUS_TYPE, DEFAULT_APEX_JACK_STATUS,
+ G_PARAM_READABLE));
+}
+
+/* sink plugin instance init */
+static void
+gst_apexsink_init (GstApExSink * apexsink, GstApExSinkClass * g_class)
+{
+ GstMixerTrack *track = NULL;
+
+ track = g_object_new (GST_TYPE_MIXER_TRACK, NULL);
+ track->label = g_strdup ("Airport Express");
+ track->num_channels = GST_APEX_RAOP_CHANNELS;
+ track->min_volume = 0;
+ track->max_volume = 100;
+ track->flags = GST_MIXER_TRACK_OUTPUT;
+
+ apexsink->host = g_strdup (DEFAULT_APEX_HOST);
+ apexsink->port = DEFAULT_APEX_PORT;
+ apexsink->volume = DEFAULT_APEX_VOLUME;
+ apexsink->gst_apexraop = NULL;
+ apexsink->tracks = g_list_append (apexsink->tracks, track);
+
+ GST_INFO_OBJECT (apexsink,
+ "ApEx sink default initialization, target=\"%s\", port=\"%d\", volume=\"%d\%\"",
+ apexsink->host, apexsink->port, apexsink->volume);
+}
+
+/* apex sink set property */
+static void
+gst_apexsink_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstApExSink *sink = GST_APEX_SINK (object);
+
+ switch (prop_id) {
+ case APEX_PROP_HOST:
+ {
+ if (sink->gst_apexraop == NULL) {
+ g_free (sink->host);
+ sink->host = g_value_dup_string (value);
+
+ GST_INFO_OBJECT (sink, "ApEx sink target set to \"%s\"", sink->host);
+ } else
+ G_OBJECT_WARN_INVALID_PSPEC (object, "host", prop_id, pspec);
+ }
+ break;
+ case APEX_PROP_PORT:
+ {
+ if (sink->gst_apexraop == NULL) {
+ sink->port = g_value_get_uint (value);
+
+ GST_INFO_OBJECT (sink, "ApEx port set to \"%d\"", sink->port);
+ } else
+ G_OBJECT_WARN_INVALID_PSPEC (object, "port", prop_id, pspec);
+ }
+ break;
+ case APEX_PROP_VOLUME:
+ {
+ sink->volume = g_value_get_uint (value);
+
+ if (sink->gst_apexraop != NULL)
+ gst_apexraop_set_volume (sink->gst_apexraop, sink->volume);
+
+ GST_INFO_OBJECT (sink, "ApEx volume set to \"%d\%\"", sink->volume);
+ }
+ break;
+ default:
+ {
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ }
+ break;
+ }
+}
+
+/* apex sink get property */
+static void
+gst_apexsink_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
+{
+ GstApExSink *sink = GST_APEX_SINK (object);
+
+ switch (prop_id) {
+ case APEX_PROP_HOST:
+ {
+ g_value_set_string (value, sink->host);
+ }
+ break;
+ case APEX_PROP_PORT:
+ {
+ g_value_set_uint (value, sink->port);
+ }
+ break;
+ case APEX_PROP_VOLUME:
+ {
+ g_value_set_uint (value, sink->volume);
+ }
+ break;
+ case APEX_PROP_JACK_TYPE:
+ {
+ g_value_set_enum (value, gst_apexraop_get_jacktype (sink->gst_apexraop));
+ }
+ break;
+ case APEX_PROP_JACK_STATUS:
+ {
+ g_value_set_enum (value,
+ gst_apexraop_get_jackstatus (sink->gst_apexraop));
+ }
+ break;
+ default:
+ {
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ }
+ break;
+ }
+}
+
+/* apex sink finalize */
+static void
+gst_apexsink_finalise (GObject * object)
+{
+ GstApExSink *sink = GST_APEX_SINK (object);
+
+ if (sink->tracks) {
+ g_list_foreach (sink->tracks, (GFunc) g_object_unref, NULL);
+ g_list_free (sink->tracks);
+ sink->tracks = NULL;
+ }
+
+ g_free (sink->host);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+/* sink open : open the device */
+static gboolean
+gst_apexsink_open (GstAudioSink * asink)
+{
+ int res;
+ GstApExSink *apexsink = (GstApExSink *) asink;
+
+ apexsink->gst_apexraop = gst_apexraop_new (apexsink->host, apexsink->port);
+
+ if ((res = gst_apexraop_connect (apexsink->gst_apexraop)) != GST_RTSP_STS_OK) {
+ GST_ERROR_OBJECT (apexsink,
+ "%s : network or RAOP failure, connection refused or timeout, RTSP code=%d",
+ apexsink->host, res);
+ return FALSE;
+ }
+
+ GST_INFO_OBJECT (apexsink,
+ "OPEN : ApEx sink successfully connected to \"%s:%d\", ANNOUNCE, SETUP and RECORD requests performed",
+ apexsink->host, apexsink->port);
+
+ switch (gst_apexraop_get_jackstatus (apexsink->gst_apexraop)) {
+ case GST_APEX_JACK_STATUS_CONNECTED:
+ {
+ GST_INFO_OBJECT (apexsink, "OPEN : ApEx jack is connected");
+ }
+ break;
+ case GST_APEX_JACK_STATUS_DISCONNECTED:
+ {
+ GST_WARNING_OBJECT (apexsink, "OPEN : ApEx jack is disconnected !");
+ }
+ break;
+ default:
+ {
+ GST_WARNING_OBJECT (apexsink, "OPEN : ApEx jack status is undefined !");
+ }
+ break;
+ }
+
+ switch (gst_apexraop_get_jacktype (apexsink->gst_apexraop)) {
+ case GST_APEX_JACK_TYPE_ANALOG:
+ {
+ GST_INFO_OBJECT (apexsink, "OPEN : ApEx jack type is analog");
+ }
+ break;
+ case GST_APEX_JACK_TYPE_DIGITAL:
+ {
+ GST_INFO_OBJECT (apexsink, "OPEN : ApEx jack type is digital");
+ }
+ break;
+ default:
+ {
+ GST_WARNING_OBJECT (apexsink, "OPEN : ApEx jack type is undefined !");
+ }
+ break;
+ }
+
+ if ((res =
+ gst_apexraop_set_volume (apexsink->gst_apexraop,
+ apexsink->volume)) != GST_RTSP_STS_OK) {
+ GST_WARNING_OBJECT (apexsink,
+ "%s : could not set initial volume to \"%d\%\", RTSP code=%d",
+ apexsink->host, apexsink->volume, res);
+ } else {
+ GST_INFO_OBJECT (apexsink,
+ "OPEN : ApEx sink successfully set volume to \"%d\%\"",
+ apexsink->volume);
+ }
+
+ return TRUE;
+}
+
+/* prepare sink : configure the device with the specified format */
+static gboolean
+gst_apexsink_prepare (GstAudioSink * asink, GstRingBufferSpec * spec)
+{
+ GstApExSink *apexsink = (GstApExSink *) asink;
+
+ apexsink->latency_time = spec->latency_time;
+
+ spec->segsize =
+ GST_APEX_RAOP_SAMPLES_PER_FRAME * GST_APEX_RAOP_BYTES_PER_SAMPLE;
+ spec->segtotal = 1;
+
+ bzero (spec->silence_sample, sizeof (spec->silence_sample));
+
+ GST_INFO_OBJECT (apexsink,
+ "PREPARE : ApEx sink ready to stream at %dHz, %d bytes per sample, %d channels, %d bytes segments (%dkB/s)",
+ spec->rate, spec->bytes_per_sample, spec->channels, spec->segsize,
+ spec->rate * spec->bytes_per_sample / 1000);
+
+ return TRUE;
+}
+
+/* sink write : write samples to the device */
+static guint
+gst_apexsink_write (GstAudioSink * asink, gpointer data, guint length)
+{
+ GstApExSink *apexsink = (GstApExSink *) asink;
+
+ if (gst_apexraop_write (apexsink->gst_apexraop, data, length) != length) {
+ GST_INFO_OBJECT (apexsink,
+ "WRITE : %d bytes not fully sended, skipping frame samples...", length);
+ } else {
+ GST_INFO_OBJECT (apexsink, "WRITE : %d bytes sended", length);
+
+ usleep ((gulong) ((length * 1000000.) / (GST_APEX_RAOP_BITRATE *
+ GST_APEX_RAOP_BYTES_PER_SAMPLE) - apexsink->latency_time));
+ }
+
+ return length;
+}
+
+/* unprepare sink : undo operations done by prepare */
+static gboolean
+gst_apexsink_unprepare (GstAudioSink * asink)
+{
+ GstApExSink *apexsink = (GstApExSink *) asink;
+
+ GST_INFO_OBJECT (apexsink, "UNPREPARE");
+
+ return TRUE;
+}
+
+/* delay sink : get the estimated number of samples written but not played yet by the device */
+static guint
+gst_apexsink_delay (GstAudioSink * asink)
+{
+ GstApExSink *apexsink = (GstApExSink *) asink;
+
+ GST_INFO_OBJECT (apexsink, "DELAY");
+
+ return 0;
+}
+
+/* reset sink : unblock writes and flush the device */
+static void
+gst_apexsink_reset (GstAudioSink * asink)
+{
+ int res;
+ GstApExSink *apexsink = (GstApExSink *) asink;
+
+ GST_INFO_OBJECT (apexsink, "RESET : flushing buffer...");
+
+ if ((res = gst_apexraop_flush (apexsink->gst_apexraop)) == GST_RTSP_STS_OK) {
+ GST_INFO_OBJECT (apexsink, "RESET : ApEx buffer flush success");
+ } else {
+ GST_WARNING_OBJECT (apexsink,
+ "RESET : could not flush ApEx buffer, RTSP code=%d", res);
+ }
+}
+
+/* sink close : close the device */
+static gboolean
+gst_apexsink_close (GstAudioSink * asink)
+{
+ GstApExSink *apexsink = (GstApExSink *) asink;
+
+ gst_apexraop_close (apexsink->gst_apexraop);
+ gst_apexraop_free (apexsink->gst_apexraop);
+
+ GST_INFO_OBJECT (apexsink, "CLOSE : ApEx sink closed connection");
+
+ return TRUE;
+}
diff --git a/ext/apexsink/gstapexsink.h b/ext/apexsink/gstapexsink.h
new file mode 100644
index 00000000..11d2f1ef
--- /dev/null
+++ b/ext/apexsink/gstapexsink.h
@@ -0,0 +1,85 @@
+/* GStreamer - AirPort Express (ApEx) Audio Sink -
+ *
+ * Remote Audio Access Protocol (RAOP) as used in Apple iTunes to stream music to the Airport Express (ApEx) -
+ * RAOP is based on the Real Time Streaming Protocol (RTSP) but with an extra challenge-response RSA based authentication step.
+ *
+ * RAW PCM input only as defined by the following GST_STATIC_PAD_TEMPLATE regarding the expected gstapexraop input format.
+ *
+ * Copyright (C) 2008 Jérémie Bernard [GRemi] <gremimail@gmail.com>
+ *
+ * gstapexsink.h
+ *
+ * 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_APEXSINK_H__
+#define __GST_APEXSINK_H__
+
+#include "gstapexraop.h"
+
+#include <gst/audio/gstaudiosink.h>
+#include <gst/interfaces/mixer.h>
+
+G_BEGIN_DECLS
+
+/* standard gstreamer macros */
+#define GST_TYPE_APEX_SINK (gst_apexsink_get_type())
+#define GST_APEX_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_APEX_SINK,GstApExSink))
+#define GST_APEX_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_APEX_SINK,GstApExSinkClass))
+#define GST_IS_APEX_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_APEX_SINK))
+#define GST_IS_APEX_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_APEX_SINK))
+#define GST_APEX_SINK_CAST(obj) ((GstApExSink*)(obj))
+#define GST_APEX_SINK_NAME "apexsink"
+#define GST_APEX_SINK_JACKTYPE_TYPE (gst_apexsink_jacktype_get_type())
+#define GST_APEX_SINK_JACKSTATUS_TYPE (gst_apexsink_jackstatus_get_type())
+/* ApEx classes declaration */
+typedef struct _GstApExSink GstApExSink;
+typedef struct _GstApExSinkClass GstApExSinkClass;
+
+struct _GstApExSink
+{
+ /* base definition */
+ GstAudioSink sink;
+
+ /* public read/write sink properties */
+ gchar *host;
+ guint port;
+ guint volume;
+
+ /* private attributes : latency time local copy, tracks list of the mixer interface */
+ guint64 latency_time;
+ GList *tracks;
+
+ /* private apex client */
+ GstApExRAOP *gst_apexraop;
+};
+
+struct _GstApExSinkClass
+{
+ GstAudioSinkClass parent_class;
+};
+
+/* genum jack access */
+GType gst_apexsink_jackstatus_get_type (void);
+GType gst_apexsink_jacktype_get_type (void);
+
+/* audio sink standard api */
+GType gst_apexsink_get_type (void);
+
+G_END_DECLS
+
+#endif
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