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s/gst_element_install_std_props/gst_element_class_install_std_props/ -- it just makes more sense that way added jack ...
Original commit message from CVS: * s/gst_element_install_std_props/gst_element_class_install_std_props/ -- it just makes more sense that way * added jack element, doesn't quite work right yet but i didn't want to lose the work -- it does build, register, and attempt to run though * imposed some restrictions on the naming of request pads to better allow for reverse parsing * added '%s' to reverse parsing * added new bin flag to indicate that it is self-iterating, and some lame code in gst-launch to test it out * fixen on launch-gui * added pkg-config stuff for the editor's libs
This commit is contained in:
parent
1e0d80ab83
commit
62c2ffe709
9 changed files with 757 additions and 19 deletions
34
configure.ac
34
configure.ac
|
@ -10,7 +10,7 @@ AM_DISABLE_STATIC
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dnl when going to/from release please set the nano (fourth number) right !
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dnl We disable static building for development, for time savings
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AM_DISABLE_STATIC
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AS_VERSION(gst-plugins, GST_PLUGINS, 0, 3, 2, 2)
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AS_VERSION(gst-plugins, GST_PLUGINS, 0, 3, 3, 1)
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AM_INIT_AUTOMAKE($PACKAGE,$VERSION)
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AS_LIBTOOL(GST_PLUGINS, 0, 0, 0, yes)
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@ -426,19 +426,13 @@ GST_CHECK_FEATURE(HTTP, [http plugins], gsthttpsrc, [
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AC_SUBST(GST_HTTPSRC_GET_TYPE)
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])
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dnl *** lame ***
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translit(dnm, m, l) AM_CONDITIONAL(USE_LAME, true)
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GST_CHECK_FEATURE(LAME, [lame mp3 encoder library], lame, [
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GST_CHECK_LIBHEADER(LAME, mp3lame, lame_init, -lm, lame/lame.h, HAVE_LAME="yes" LAME_LIBS="-lmp3lame")
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dnl *** Jack ***
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translit(dnm, m, l) AM_CONDITIONAL(USE_JACK, true)
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GST_CHECK_FEATURE(JACK, Jack, jack, [
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PKG_CHECK_MODULES(JACK, jack, HAVE_JACK="yes", HAVE_JACK="no")
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AC_SUBST(JACK_CFLAGS)
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AC_SUBST(JACK_LIBS)
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])
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AC_SUBST(LAME_LIBS)
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dnl FIXME : check if these CPP flags can be dealt with otherwise
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dnl libdvcheck_save_CPPFLAGS="$CPPFLAGS"
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dnl CPPFLAGS="$CPPFLAGS $GST_CFLAGS"
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dnl AC_CHECK_HEADER(libdv/dv.h, :, HAVE_LIBDV=no)
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dnl CPPFLAGS="$libdvcheck_save_CPPFLAGS"
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dnl *** jpeg ***
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dnl FIXME: we could use header checks here as well IMO
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@ -449,6 +443,19 @@ GST_CHECK_FEATURE(JPEG, [jpeg], jpegenc jpegdec, [
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AC_SUBST(JPEG_LIBS)
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])
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dnl *** lame ***
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translit(dnm, m, l) AM_CONDITIONAL(USE_LAME, true)
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GST_CHECK_FEATURE(LAME, [lame mp3 encoder library], lame, [
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GST_CHECK_LIBHEADER(LAME, mp3lame, lame_init, -lm, lame/lame.h, HAVE_LAME="yes" LAME_LIBS="-lmp3lame")
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])
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AC_SUBST(LAME_LIBS)
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dnl FIXME : check if these CPP flags can be dealt with otherwise
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dnl libdvcheck_save_CPPFLAGS="$CPPFLAGS"
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dnl CPPFLAGS="$CPPFLAGS $GST_CFLAGS"
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dnl AC_CHECK_HEADER(libdv/dv.h, :, HAVE_LIBDV=no)
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dnl CPPFLAGS="$libdvcheck_save_CPPFLAGS"
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dnl *** mad ***
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dnl FIXME: we could use header checks here as well IMO
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translit(dnm, m, l) AM_CONDITIONAL(USE_MAD, true)
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@ -780,6 +787,7 @@ ext/gnomevfs/Makefile
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ext/gsm/Makefile
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ext/hermes/Makefile
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ext/http/Makefile
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ext/jack/Makefile
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ext/jpeg/Makefile
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ext/ladspa/Makefile
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ext/lame/Makefile
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@ -100,6 +100,12 @@ else
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HTTP_DIR=
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endif
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if USE_JACK
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JACK_DIR=jack
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else
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JACK_DIR=
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endif
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if USE_JPEG
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JPEG_DIR=jpeg
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else
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@ -203,7 +209,7 @@ SUBDIRS=$(A52DEC_DIR) $(AALIB_DIR) $(ALSA_DIR) \
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$(AVIFILE_DIR) $(CDPARANOIA_DIR) $(DV_DIR) \
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$(DVDREAD_DIR) $(ESD_DIR) $(FESTIVAL_DIR) \
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$(FLAC_DIR) $(GNOMEVFS_DIR) $(GSM_DIR) \
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$(HERMES_DIR) $(HTTP_DIR) $(JPEG_DIR) \
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$(HERMES_DIR) $(HTTP_DIR) $(JACK_DIR) $(JPEG_DIR) \
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$(LADSPA_DIR) $(LAME_DIR) \
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$(MAD_DIR) $(MIKMOD_DIR) $(MJPEGTOOLS_DIR) $(MPEG2DEC_DIR) \
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$(OPENQUICKTIME_DIR) $(RAW1394_DIR) $(RTP_DIR) \
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@ -216,7 +222,7 @@ DIST_SUBDIRS=\
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audiofile cdparanoia dv \
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dvdread esd festival \
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flac gnomevfs gsm \
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hermes http jpeg \
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hermes http jack jpeg \
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ladspa lame \
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mad mikmod mjpegtools mpeg2dec \
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openquicktime raw1394 rtp \
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@ -148,7 +148,7 @@ gst_afsink_class_init (GstAFSinkClass *klass)
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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gst_element_install_std_props (
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gst_element_class_install_std_props (
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GST_ELEMENT_CLASS (klass),
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"location", ARG_LOCATION, G_PARAM_READWRITE,
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NULL);
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@ -147,7 +147,7 @@ gst_afsrc_class_init (GstAFSrcClass *klass)
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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gst_element_install_std_props (
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gst_element_class_install_std_props (
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GST_ELEMENT_CLASS (klass),
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"location", ARG_LOCATION, G_PARAM_READWRITE,
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NULL);
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12
ext/jack/Makefile.am
Normal file
12
ext/jack/Makefile.am
Normal file
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@ -0,0 +1,12 @@
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plugindir = $(libdir)/gst
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plugin_LTLIBRARIES = libgstjack.la
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libgstjack_la_SOURCES = gstjack.c
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libgstjack_la_CFLAGS = $(GST_CFLAGS) $(JACK_CFLAGS)
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libgstjack_la_LIBADD = $(GST_LIBS) $(JACK_LIBS)
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libgstjack_la_LDFLAGS = @GST_PLUGIN_LDFLAGS@
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noinst_HEADERS = gstjack.h
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EXTRA_DIST = README
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4
ext/jack/README
Normal file
4
ext/jack/README
Normal file
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@ -0,0 +1,4 @@
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to be written, la dee da
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jackit.sf.net
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593
ext/jack/gstjack.c
Normal file
593
ext/jack/gstjack.c
Normal file
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@ -0,0 +1,593 @@
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/*
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Copyright (C) 2002 Andy Wingo <wingo@pobox.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdlib.h>
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#include "gstjack.h"
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#include <gst/audio/audio.h>
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/* TODO:
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this element is still nonfunctional
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- work out the src side (caps setting, etc)
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future core TODO:
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- make a jack clock provider
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- add GST_ELEMENT_FIXED_DATA_RATE, GST_ELEMENT_QOS,
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GST_ELEMENT_CHANGES_DATA_RATE element flags, and make the scheduler
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sensitive to them
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*/
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static GstElementDetails gst_jack_sink_details = {
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"Jack Sink",
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"Sink/Audio",
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"Output to a Jack processing network: see README for more info",
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VERSION,
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"Andy Wingo <wingo@pobox.com>",
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"(C) 2002 "
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};
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static GstElementDetails gst_jack_src_details = {
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"Jack Src",
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"Source/Audio",
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"Input from a Jack processing network: see README for more info",
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VERSION,
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"Andy Wingo <wingo@pobox.com>",
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"(C) 2002",
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};
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static GstElement *parent_class = NULL;
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static void gst_jack_init(GstJack *this);
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static void gst_jack_class_init(GstJackClass *klass);
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static GstPadTemplate *gst_jack_src_request_pad_factory();
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static GstPadTemplate *gst_jack_sink_request_pad_factory();
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static GstPad* gst_jack_request_new_pad (GstElement *element, GstPadTemplate *templ, const
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gchar *name);
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static void gst_jack_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
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static void gst_jack_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
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static GstElementStateReturn gst_jack_change_state(GstElement *element);
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static GstPadConnectReturn gst_jack_connect (GstPad *pad, GstCaps *caps);
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static void gst_jack_loop (GstElement *element);
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/* jack callbacks */
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static int process (nframes_t nframes, void *arg);
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static int buffer_size (nframes_t nframes, void *arg);
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static int sample_rate (nframes_t nframes, void *arg);
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static void shutdown (void *arg);
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enum {
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ARG_0,
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ARG_PORT_NAME_PREFIX,
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};
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GType
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gst_jack_get_type (void)
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{
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static GType jack_type = 0;
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if (!jack_type) {
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static const GTypeInfo jack_info = {
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sizeof(GstJackClass),
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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sizeof(GstJack),
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0,
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NULL,
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};
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jack_type = g_type_register_static (GST_TYPE_ELEMENT, "GstJack", &jack_info, 0);
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}
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return jack_type;
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}
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GType
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gst_jack_sink_get_type (void)
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{
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static GType jack_type = 0;
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if (!jack_type) {
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static const GTypeInfo jack_info = {
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sizeof(GstJackClass),
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NULL,
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NULL,
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(GClassInitFunc)gst_jack_class_init,
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NULL,
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NULL,
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sizeof(GstJack),
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0,
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(GInstanceInitFunc)gst_jack_init,
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};
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jack_type = g_type_register_static (GST_TYPE_JACK, "GstJackSink", &jack_info, 0);
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}
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return jack_type;
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}
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GType
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gst_jack_src_get_type (void)
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{
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static GType jack_type = 0;
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if (!jack_type) {
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static const GTypeInfo jack_info = {
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sizeof(GstJackClass),
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NULL,
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NULL,
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(GClassInitFunc)gst_jack_class_init,
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NULL,
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NULL,
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sizeof(GstJack),
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0,
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(GInstanceInitFunc)gst_jack_init,
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};
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jack_type = g_type_register_static (GST_TYPE_JACK, "GstJackSrc", &jack_info, 0);
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}
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return jack_type;
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}
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static GstPadTemplate*
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gst_jack_src_request_pad_factory(void)
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{
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static GstPadTemplate *template = NULL;
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if (!template)
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template = gst_padtemplate_new("%s", GST_PAD_SRC, GST_PAD_REQUEST,
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gst_caps_new("src", "audio/raw",
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GST_AUDIO_FLOAT_MONO_PAD_TEMPLATE_PROPS),
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NULL);
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return template;
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}
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static GstPadTemplate*
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gst_jack_sink_request_pad_factory(void)
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{
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static GstPadTemplate *template = NULL;
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if (!template)
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template = gst_padtemplate_new("%s", GST_PAD_SINK, GST_PAD_REQUEST,
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gst_caps_new("sink", "audio/raw",
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GST_AUDIO_FLOAT_MONO_PAD_TEMPLATE_PROPS),
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NULL);
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return template;
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}
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static void
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gst_jack_class_init(GstJackClass *klass)
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{
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GObjectClass *object_class;
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GstElementClass *element_class;
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object_class = (GObjectClass *)klass;
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element_class = (GstElementClass *)klass;
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if (parent_class == NULL)
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parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
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object_class->get_property = gst_jack_get_property;
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object_class->set_property = gst_jack_set_property;
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PORT_NAME_PREFIX,
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g_param_spec_string("port-name-prefix","Port name prefix",
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"String to prepend to jack port names",
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"gst-",
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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element_class->change_state = gst_jack_change_state;
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element_class->request_new_pad = gst_jack_request_new_pad;
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}
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static void
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gst_jack_init(GstJack *this)
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{
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if (G_OBJECT_TYPE (this) == GST_TYPE_JACK_SRC) {
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this->direction = GST_PAD_SRC;
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} else if (G_OBJECT_TYPE (this) == GST_TYPE_JACK_SINK) {
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this->direction = GST_PAD_SINK;
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} else {
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g_assert_not_reached ();
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}
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|
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gst_element_set_loop_function(GST_ELEMENT(this), gst_jack_loop);
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}
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|
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static GstPad*
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gst_jack_request_new_pad (GstElement *element, GstPadTemplate *templ, const gchar *name)
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{
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GstJack *this;
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gchar *newname;
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GList *l, **pad_list;
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GstJackPad *pad;
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g_return_val_if_fail ((this = GST_JACK (element)), NULL);
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|
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if (!this->client)
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pad_list = &this->pads;
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else if (this->direction == GST_PAD_SRC)
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pad_list = &this->client->src_pads;
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else
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pad_list = &this->client->src_pads;
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|
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if (name) {
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l = *pad_list;
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while (l) {
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if (strcmp (GST_JACK_PAD(l)->name, name) == 0) {
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g_warning("requested port name %s already in use.", name);
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return NULL;
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}
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l = l->next;
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}
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newname = g_strdup (name);
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} else {
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newname = g_strdup ("alsa_pcm:out_1");
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}
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|
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pad = g_new0(GstJackPad, 1);
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pad->name = g_strdup_printf ("%s%d", this->port_name_prefix, this->client->default_new_port_number++);
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pad->peer_name = newname;
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pad->pad = gst_pad_new_from_template (templ, newname);
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gst_element_add_pad (GST_ELEMENT (this), pad->pad);
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gst_pad_set_connect_function (pad->pad, gst_jack_connect);
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|
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if (this->client)
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*pad_list = g_list_append (*pad_list, pad);
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// this->pads = g_list_append (this->pads, pad);
|
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|
||||
return pad->pad;
|
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}
|
||||
|
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static void
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gst_jack_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
|
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{
|
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GstJack *this;
|
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|
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this = (GstJack *)object;
|
||||
switch (prop_id) {
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case ARG_PORT_NAME_PREFIX:
|
||||
if (this->port_name_prefix)
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g_free (this->port_name_prefix);
|
||||
this->port_name_prefix = g_strdup (g_value_get_string (value));
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
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return;
|
||||
}
|
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}
|
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|
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static void
|
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gst_jack_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
|
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{
|
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GstJack *this;
|
||||
|
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this = (GstJack *)object;
|
||||
|
||||
switch (prop_id) {
|
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case ARG_PORT_NAME_PREFIX:
|
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g_value_set_string (value, this->port_name_prefix);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
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|
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static GstElementStateReturn
|
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gst_jack_change_state (GstElement *element)
|
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{
|
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GstJack *this;
|
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GstJackClient *client;
|
||||
GstBin *bin;
|
||||
GList *l = NULL, **pads;
|
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enum JackPortFlags flags;
|
||||
GstJackPad *pad;
|
||||
|
||||
g_return_val_if_fail (element != NULL, FALSE);
|
||||
this = GST_JACK (element);
|
||||
client = this->client;
|
||||
|
||||
switch (GST_STATE_PENDING (element)) {
|
||||
case GST_STATE_NULL:
|
||||
if (client) {
|
||||
jack_client_close (client->client);
|
||||
}
|
||||
|
||||
break;
|
||||
|
||||
case GST_STATE_READY:
|
||||
if (!this->client) {
|
||||
if (!(bin = gst_element_get_managing_bin (element))) {
|
||||
g_warning ("jack element %s cannot be brought to READY state without a managing bin",
|
||||
GST_OBJECT_NAME (GST_OBJECT (element)));
|
||||
return GST_STATE_FAILURE;
|
||||
}
|
||||
|
||||
client = g_object_get_data (G_OBJECT (bin), "gst-jack-client");
|
||||
|
||||
if (!client) {
|
||||
client = g_new0 (GstJackClient, 1);
|
||||
if (!(client->client = jack_client_new ("gst-jack"))) {
|
||||
g_warning ("jack server not running?");
|
||||
return GST_STATE_FAILURE;
|
||||
}
|
||||
|
||||
jack_set_process_callback (client->client, process, client);
|
||||
jack_set_buffer_size_callback (client->client, buffer_size, client);
|
||||
jack_set_sample_rate_callback (client->client, sample_rate, client);
|
||||
jack_on_shutdown (client->client, shutdown, client);
|
||||
|
||||
client->refcount = 1;
|
||||
g_object_set_data (G_OBJECT (bin), "gst-jack-client", client);
|
||||
client->manager = bin;
|
||||
GST_FLAG_SET (GST_OBJECT (bin), GST_BIN_SELF_ITERATING);
|
||||
} else {
|
||||
client->refcount++;
|
||||
}
|
||||
this->client = client;
|
||||
|
||||
/* fixme: verify that all names are unique */
|
||||
l = this->pads;
|
||||
pads = (this->direction == GST_PAD_SRC) ? &client->src_pads : &client->sink_pads;
|
||||
while (l) {
|
||||
pad = GST_JACK_PAD (l);
|
||||
*pads = g_list_append (*pads, pad);
|
||||
l = g_list_next (l);
|
||||
}
|
||||
}
|
||||
|
||||
/* fixme: there are a *lot* of problems here */
|
||||
if (GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_OPEN)) {
|
||||
l = this->pads;
|
||||
while (l) {
|
||||
jack_port_unregister (client->client, GST_JACK_PAD (l)->port);
|
||||
l = g_list_next (l);
|
||||
}
|
||||
GST_FLAG_UNSET (GST_OBJECT (this), GST_JACK_OPEN);
|
||||
}
|
||||
break;
|
||||
|
||||
case GST_STATE_PAUSED:
|
||||
g_assert (client);
|
||||
|
||||
if (!GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_OPEN)) {
|
||||
l = this->pads;
|
||||
while (l) {
|
||||
pad = GST_JACK_PAD (l);
|
||||
|
||||
if (this->direction == GST_PAD_SINK)
|
||||
flags = JackPortIsOutput;
|
||||
else
|
||||
flags = JackPortIsInput;
|
||||
|
||||
pad->port = jack_port_register (client->client, pad->name, JACK_DEFAULT_AUDIO_TYPE, flags, 0);
|
||||
if (jack_connect (client->client, pad->peer_name, jack_port_name (pad->port))) {
|
||||
g_warning ("could not connect %s and %s", pad->peer_name, jack_port_name (pad->port));
|
||||
return GST_STATE_FAILURE;
|
||||
}
|
||||
|
||||
l = g_list_next (l);
|
||||
}
|
||||
GST_FLAG_SET (GST_OBJECT (this), GST_JACK_OPEN);
|
||||
}
|
||||
|
||||
if (GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_ACTIVE)) {
|
||||
jack_deactivate (client->client);
|
||||
GST_FLAG_UNSET (GST_OBJECT (this), GST_JACK_ACTIVE);
|
||||
}
|
||||
break;
|
||||
case GST_STATE_PLAYING:
|
||||
if (!GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_ACTIVE)) {
|
||||
jack_activate (client->client);
|
||||
GST_FLAG_SET (GST_OBJECT (this), GST_JACK_ACTIVE);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (GST_ELEMENT_CLASS (parent_class)->change_state)
|
||||
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
|
||||
|
||||
return GST_STATE_SUCCESS;
|
||||
}
|
||||
|
||||
static GstPadConnectReturn
|
||||
gst_jack_connect (GstPad *pad, GstCaps *caps)
|
||||
{
|
||||
GstJack *this;
|
||||
|
||||
this = GST_JACK (gst_pad_get_parent (pad));
|
||||
g_return_val_if_fail (this != NULL, GST_PAD_CONNECT_REFUSED);
|
||||
g_return_val_if_fail (GST_IS_JACK (this), GST_PAD_CONNECT_REFUSED);
|
||||
|
||||
if (GST_CAPS_IS_FIXED (caps)) {
|
||||
if (this->client && gst_caps_get_int (caps, "rate") != this->client->rate)
|
||||
return GST_PAD_CONNECT_REFUSED;
|
||||
|
||||
return GST_PAD_CONNECT_OK;
|
||||
}
|
||||
|
||||
return GST_PAD_CONNECT_DELAYED;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_jack_loop (GstElement *element)
|
||||
{
|
||||
GstJack *this;
|
||||
GList *pads;
|
||||
gint len;
|
||||
gchar *peeked;
|
||||
gint avail;
|
||||
GstEvent *event;
|
||||
GstJackPad *pad;
|
||||
GstBuffer *buffer;
|
||||
|
||||
this = GST_JACK (element);
|
||||
|
||||
g_return_if_fail(this != NULL);
|
||||
len = this->client->nframes * sizeof (sample_t);
|
||||
|
||||
do {
|
||||
pads = this->pads;
|
||||
while (pads) {
|
||||
pad = GST_JACK_PAD (pads);
|
||||
|
||||
if (this->direction == GST_PAD_SINK) {
|
||||
if (pad->bs)
|
||||
pad->bs = gst_bytestream_new (pad->pad);
|
||||
|
||||
if (!(peeked = gst_bytestream_peek_bytes (pad->bs, len))) {
|
||||
gst_bytestream_get_status(pad->bs, &avail, &event);
|
||||
if (event) {
|
||||
g_warning("got an event on jacksink");
|
||||
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
|
||||
/* really, we should just cut this pad out of the graph. let
|
||||
* me know when this is needed ;)
|
||||
* also, for sample accuracy etc, we should play avail
|
||||
* bytes, but hey. */
|
||||
gst_element_set_eos(GST_ELEMENT(this));
|
||||
gst_event_free(event);
|
||||
}
|
||||
} else {
|
||||
/* the element at the top of the chain did not emit an eos
|
||||
* event. this is a Bug(tm) */
|
||||
g_assert_not_reached();
|
||||
}
|
||||
}
|
||||
|
||||
memcpy (pad->data, peeked, len);
|
||||
gst_bytestream_flush (pad->bs, len);
|
||||
} else {
|
||||
buffer = gst_buffer_new ();
|
||||
GST_BUFFER_DATA (buffer) = pad->data;
|
||||
GST_BUFFER_SIZE (buffer) = len;
|
||||
GST_BUFFER_MAXSIZE (buffer) = len;
|
||||
|
||||
gst_pad_push (pad->pad, buffer);
|
||||
}
|
||||
pads = g_list_next (pads);
|
||||
}
|
||||
|
||||
gst_element_yield (element);
|
||||
} while (TRUE);
|
||||
}
|
||||
|
||||
/* jack callbacks */
|
||||
|
||||
static int
|
||||
process (nframes_t nframes, void *arg)
|
||||
{
|
||||
GstJackClient *client = (GstJackClient*) arg;
|
||||
GstJackPad *pad;
|
||||
GList *l;
|
||||
|
||||
g_assert (client);
|
||||
|
||||
l = client->src_pads;
|
||||
while (l) {
|
||||
pad = GST_JACK_PAD (l);
|
||||
pad->data = jack_port_get_buffer (pad->port, nframes);
|
||||
l = g_list_next (l);
|
||||
}
|
||||
|
||||
l = client->sink_pads;
|
||||
while (l) {
|
||||
pad = GST_JACK_PAD (l);
|
||||
pad->data = jack_port_get_buffer (pad->port, nframes);
|
||||
l = g_list_next (l);
|
||||
}
|
||||
|
||||
client->nframes = nframes;
|
||||
|
||||
if (!gst_bin_iterate (client->manager)) {
|
||||
g_warning ("bin failed to iterate");
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* that's all folks */
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
buffer_size (nframes_t nframes, void *arg)
|
||||
{
|
||||
printf ("the maximum buffer size is now %lu\n", nframes);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
sample_rate (nframes_t nframes, void *arg)
|
||||
{
|
||||
GstJackClient *client = (GstJackClient*) arg;
|
||||
printf ("the sample rate is now %lu/sec\n", nframes);
|
||||
client->rate = nframes;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
shutdown (void *arg)
|
||||
{
|
||||
GstJackClient *client = (GstJackClient*) arg;
|
||||
printf ("shutdown\n");
|
||||
// gst_element_set_state (GST_ELEMENT (client->manager), GST_STATE_READY);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
plugin_init (GModule *module, GstPlugin *plugin)
|
||||
{
|
||||
GstElementFactory *factory;
|
||||
|
||||
if (!gst_library_load ("gstbytestream")) {
|
||||
gst_info("jack: could not load support library: 'gstbytestream'\n");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
factory = gst_elementfactory_new ("jacksrc", GST_TYPE_JACK_SRC, &gst_jack_src_details);
|
||||
g_return_val_if_fail (factory != NULL, FALSE);
|
||||
gst_elementfactory_add_padtemplate (factory, gst_jack_src_request_pad_factory());
|
||||
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
|
||||
|
||||
factory = gst_elementfactory_new ("jacksink", GST_TYPE_JACK_SINK, &gst_jack_sink_details);
|
||||
g_return_val_if_fail (factory != NULL, FALSE);
|
||||
gst_elementfactory_add_padtemplate (factory, gst_jack_sink_request_pad_factory());
|
||||
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
|
||||
|
||||
gst_plugin_set_longname(plugin, "JACK plugin library");
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
GstPluginDesc plugin_desc = {
|
||||
GST_VERSION_MAJOR,
|
||||
GST_VERSION_MINOR,
|
||||
"jack",
|
||||
plugin_init
|
||||
};
|
||||
|
||||
|
115
ext/jack/gstjack.h
Normal file
115
ext/jack/gstjack.h
Normal file
|
@ -0,0 +1,115 @@
|
|||
/*
|
||||
Copyright (C) 2002 Andy Wingo <wingo@pobox.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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#ifndef __GST_JACK_H__
|
||||
#define __GST_JACK_H__
|
||||
|
||||
#include <jack/jack.h>
|
||||
#include <gst/gst.h>
|
||||
#include <gst/bytestream/bytestream.h>
|
||||
|
||||
|
||||
#define GST_JACK(obj) G_TYPE_CHECK_INSTANCE_CAST(obj, GST_TYPE_JACK, GstJack)
|
||||
#define GST_JACK_CLASS(klass) G_TYPE_CHECK_CLASS_CAST(klass, GST_TYPE_JACK, GstJackClass)
|
||||
#define GST_IS_JACK(obj) G_TYPE_CHECK_INSTANCE_TYPE(obj, GST_TYPE_JACK)
|
||||
#define GST_IS_JACK_CLASS(klass) G_TYPE_CHECK_CLASS_TYPE(klass, GST_TYPE_JACK)
|
||||
#define GST_TYPE_JACK gst_jack_get_type()
|
||||
|
||||
#define GST_JACK_SINK(obj) G_TYPE_CHECK_INSTANCE_CAST(obj, GST_TYPE_JACK_SINK, GstJack)
|
||||
#define GST_JACK_SINK_CLASS(klass) G_TYPE_CHECK_CLASS_CAST(klass, GST_TYPE_JACK_SINK, GstJackClass)
|
||||
#define GST_IS_JACK_SINK(obj) G_TYPE_CHECK_INSTANCE_TYPE(obj, GST_TYPE_JACK_SINK)
|
||||
#define GST_IS_JACK_SINK_CLASS(klass) G_TYPE_CHECK_CLASS_TYPE(klass, GST_TYPE_JACK_SINK)
|
||||
#define GST_TYPE_JACK_SINK gst_jack_sink_get_type()
|
||||
|
||||
#define GST_JACK_SRC(obj) G_TYPE_CHECK_INSTANCE_CAST(obj, GST_TYPE_JACK_SRC, GstJack)
|
||||
#define GST_JACK_SRC_CLASS(klass) G_TYPE_CHECK_CLASS_CAST(klass, GST_TYPE_JACK_SRC, GstJackClass)
|
||||
#define GST_IS_JACK_SRC(obj) G_TYPE_CHECK_INSTANCE_TYPE(obj, GST_TYPE_JACK_SRC)
|
||||
#define GST_IS_JACK_SRC_CLASS(klass) G_TYPE_CHECK_CLASS_TYPE(klass, GST_TYPE_JACK_SRC)
|
||||
#define GST_TYPE_JACK_SRC gst_jack_src_get_type()
|
||||
|
||||
#define GST_JACK_PAD(l) ((GstJackPad*)l->data) /* l is a GList */
|
||||
|
||||
|
||||
typedef struct _GstJack GstJack;
|
||||
typedef struct _GstJackClass GstJackClass;
|
||||
typedef GstJack GstJackSink;
|
||||
typedef GstJackClass GstJackSinkClass;
|
||||
typedef GstJack GstJackSrc;
|
||||
typedef GstJackClass GstJackSrcClass;
|
||||
|
||||
|
||||
enum {
|
||||
GST_JACK_OPEN = GST_ELEMENT_FLAG_LAST,
|
||||
GST_JACK_ACTIVE,
|
||||
GST_JACK_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 3,
|
||||
};
|
||||
|
||||
|
||||
typedef struct {
|
||||
GstPad *pad;
|
||||
void *data;
|
||||
const gchar *name;
|
||||
const gchar *peer_name;
|
||||
GstByteStream *bs;
|
||||
jack_port_t *port;
|
||||
} GstJackPad;
|
||||
|
||||
typedef struct {
|
||||
GstBin *manager;
|
||||
|
||||
jack_client_t *client;
|
||||
gint default_new_port_number;
|
||||
|
||||
/* lists of GstJackPads */
|
||||
GList *sink_pads;
|
||||
GList *src_pads;
|
||||
|
||||
gchar *client_name;
|
||||
|
||||
guint rate;
|
||||
nframes_t nframes;
|
||||
|
||||
guint refcount;
|
||||
} GstJackClient;
|
||||
|
||||
struct _GstJack {
|
||||
GstElement element;
|
||||
|
||||
/* list of GstJackPads */
|
||||
GList *pads;
|
||||
|
||||
/* for convenience */
|
||||
GstPadDirection direction;
|
||||
|
||||
gchar *port_name_prefix;
|
||||
|
||||
/* there is exactly one client per managing bin */
|
||||
GstJackClient *client;
|
||||
};
|
||||
|
||||
struct _GstJackClass {
|
||||
GstElementClass parent_class;
|
||||
};
|
||||
|
||||
|
||||
GType gst_jack_get_type (void);
|
||||
GType gst_jack_sink_get_type (void);
|
||||
GType gst_jack_src_get_type (void);
|
||||
|
||||
|
||||
#endif /* __GST_JACK_H__ */
|
|
@ -60,7 +60,7 @@ GST_PADTEMPLATE_FACTORY (src_factory,
|
|||
)
|
||||
)
|
||||
GST_PADTEMPLATE_FACTORY (video_sink_factory,
|
||||
"video_%02d",
|
||||
"video_%d",
|
||||
GST_PAD_SINK,
|
||||
GST_PAD_REQUEST,
|
||||
GST_CAPS_NEW (
|
||||
|
@ -72,7 +72,7 @@ GST_PADTEMPLATE_FACTORY (video_sink_factory,
|
|||
)
|
||||
|
||||
GST_PADTEMPLATE_FACTORY (audio_sink_factory,
|
||||
"audio_%02d",
|
||||
"audio_%d",
|
||||
GST_PAD_SINK,
|
||||
GST_PAD_REQUEST,
|
||||
GST_CAPS_NEW (
|
||||
|
|
Loading…
Reference in a new issue