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-rw-r--r--ext/jack/gstjack.c542
1 files changed, 24 insertions, 518 deletions
diff --git a/ext/jack/gstjack.c b/ext/jack/gstjack.c
index 2f6affcc..52b4b245 100644
--- a/ext/jack/gstjack.c
+++ b/ext/jack/gstjack.c
@@ -1,528 +1,33 @@
-/* -*- Mode: C; c-basic-offset: 4 -*- */
-/*
- Copyright (C) 2002, 2003 Andy Wingo <wingo@pobox.com>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public
- License as published by the Free Software Foundation; either
- version 2 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
- General Public License for more details.
-
- You should have received a copy of the GNU General Public
- License along with this library; if not, write to the Free
- Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
+/* GStreamer Jack plugins
+ * Copyright (C) 2006 Wim Taymans <wim@fluendo.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <stdlib.h>
-#include <string.h>
-#include "gstjack.h"
-#include <gst/audio/audio.h>
-
-/* TODO:
-
- - work out the src side (caps setting, etc)
-
- future core TODO:
- - make a jack clock provider
- - add GST_ELEMENT_FIXED_DATA_RATE, GST_ELEMENT_QOS,
- GST_ELEMENT_CHANGES_DATA_RATE element flags, and make the scheduler
- sensitive to them
-*/
-
-/* elementfactory information */
-static GstElementDetails gst_jack_bin_details = {
- "Jack Bin",
- "Generic/Bin",
- "Jack processing bin",
- "Andy Wingo <wingo@pobox.com>",
-};
-
-static GstElementDetails gst_jack_sink_details = {
- "Jack Sink",
- "Sink/Audio",
- "Output to a Jack processing network",
- "Andy Wingo <wingo@pobox.com>",
-};
-
-static GstElementDetails gst_jack_src_details = {
- "Jack Src",
- "Source/Audio",
- "Input from a Jack processing network",
- "Andy Wingo <wingo@pobox.com>",
-};
-
-
-static GHashTable *port_name_counts = NULL;
-static GstElementClass *parent_class = NULL;
-
-static void gst_jack_base_init (gpointer g_class);
-static void gst_jack_src_base_init (gpointer g_class);
-static void gst_jack_sink_base_init (gpointer g_class);
-static void gst_jack_init (GstJack * this);
-static void gst_jack_class_init (GstJackClass * klass);
-static void gst_jack_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_jack_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static GstPadTemplate *gst_jack_src_request_pad_factory ();
-static GstPadTemplate *gst_jack_sink_request_pad_factory ();
-static GstPad *gst_jack_request_new_pad (GstElement * element,
- GstPadTemplate * templ, const gchar * name);
-static GstStateChangeReturn gst_jack_change_state (GstElement * element,
- GstStateChange transition);
-static GstPadLinkReturn gst_jack_link (GstPad * pad, const GstCaps * caps);
-
-static void gst_jack_loop (GstElement * element);
-
-
-enum
-{
- ARG_0,
- ARG_PORT_NAME_PREFIX
-};
-
-
-GType
-gst_jack_get_type (void)
-{
- static GType jack_type = 0;
-
- if (!jack_type) {
- static const GTypeInfo jack_info = {
- sizeof (GstJackClass),
- gst_jack_base_init,
- NULL,
- NULL,
- NULL,
- NULL,
- sizeof (GstJack),
- 0,
- NULL,
- };
-
- jack_type =
- g_type_register_static (GST_TYPE_ELEMENT, "GstJack", &jack_info, 0);
- }
- return jack_type;
-}
-
-GType
-gst_jack_sink_get_type (void)
-{
- static GType jack_type = 0;
-
- if (!jack_type) {
- static const GTypeInfo jack_info = {
- sizeof (GstJackClass),
- gst_jack_sink_base_init,
- NULL,
- (GClassInitFunc) gst_jack_class_init,
- NULL,
- NULL,
- sizeof (GstJack),
- 0,
- (GInstanceInitFunc) gst_jack_init,
- };
-
- jack_type =
- g_type_register_static (GST_TYPE_JACK, "GstJackSink", &jack_info, 0);
- }
- return jack_type;
-}
-
-GType
-gst_jack_src_get_type (void)
-{
- static GType jack_type = 0;
-
- if (!jack_type) {
- static const GTypeInfo jack_info = {
- sizeof (GstJackClass),
- gst_jack_src_base_init,
- NULL,
- (GClassInitFunc) gst_jack_class_init,
- NULL,
- NULL,
- sizeof (GstJack),
- 0,
- (GInstanceInitFunc) gst_jack_init,
- };
-
- jack_type =
- g_type_register_static (GST_TYPE_JACK, "GstJackSrc", &jack_info, 0);
- }
- return jack_type;
-}
-
-static void
-gst_jack_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_set_details (element_class, &gst_jack_bin_details);
-}
-
-static void
-gst_jack_src_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_add_pad_template (element_class,
- gst_jack_src_request_pad_factory ());
- gst_element_class_set_details (element_class, &gst_jack_src_details);
-}
-
-static void
-gst_jack_sink_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_add_pad_template (element_class,
- gst_jack_sink_request_pad_factory ());
- gst_element_class_set_details (element_class, &gst_jack_sink_details);
-}
-
-static void
-gst_jack_class_init (GstJackClass * klass)
-{
- GObjectClass *object_class;
- GstElementClass *element_class;
- GParamSpec *pspec;
- gchar *prefix;
-
- object_class = (GObjectClass *) klass;
- element_class = (GstElementClass *) klass;
- if (parent_class == NULL)
- parent_class = g_type_class_peek_parent (klass);
-
- object_class->get_property = gst_jack_get_property;
- object_class->set_property = gst_jack_set_property;
-
- if (GST_IS_JACK_SINK_CLASS (klass))
- prefix = "gst-out-";
- else
- prefix = "gst-in-";
-
- pspec = g_param_spec_string ("port-name-prefix", "Port name prefix",
- "String to prepend to jack port names",
- prefix, G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
- g_object_class_install_property (object_class, ARG_PORT_NAME_PREFIX, pspec);
-
- element_class->change_state = gst_jack_change_state;
-
- element_class->request_new_pad = gst_jack_request_new_pad;
-}
-
-static void
-gst_jack_init (GstJack * this)
-{
- if (G_OBJECT_TYPE (this) == GST_TYPE_JACK_SRC)
- this->direction = GST_PAD_SRC;
- else if (G_OBJECT_TYPE (this) == GST_TYPE_JACK_SINK)
- this->direction = GST_PAD_SINK;
- else
- g_assert_not_reached ();
-
- gst_element_set_loop_function (GST_ELEMENT (this), gst_jack_loop);
-}
-
-static void
-gst_jack_set_property (GObject * object, guint prop_id, const GValue * value,
- GParamSpec * pspec)
-{
- GstJack *this = (GstJack *) object;
-
- switch (prop_id) {
- case ARG_PORT_NAME_PREFIX:
- if (this->port_name_prefix)
- 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);
- return;
- }
-}
-
-static void
-gst_jack_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
-{
- GstJack *this = (GstJack *) object;
-
- switch (prop_id) {
- case ARG_PORT_NAME_PREFIX:
- g_value_set_string (value, this->port_name_prefix);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static GstPadTemplate *
-gst_jack_src_request_pad_factory (void)
-{
- static GstPadTemplate *template = NULL;
-
- if (!template) {
- GstCaps *caps;
-
- caps = gst_caps_from_string (GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS);
- template = gst_pad_template_new ("%s", GST_PAD_SRC, GST_PAD_REQUEST, caps);
- }
-
- return template;
-}
-
-static GstPadTemplate *
-gst_jack_sink_request_pad_factory (void)
-{
- static GstPadTemplate *template = NULL;
-
- if (!template) {
- GstCaps *caps;
-
- caps = gst_caps_from_string (GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS);
- template = gst_pad_template_new ("%s", GST_PAD_SINK, GST_PAD_REQUEST, caps);
- }
-
- return template;
-}
-
-static GstPad *
-gst_jack_request_new_pad (GstElement * element, GstPadTemplate * templ,
- const gchar * name)
-{
- GstJack *this;
- gchar *newname;
- GList *l, **pad_list;
- GstJackPad *pad;
- gint count;
-
- g_return_val_if_fail (GST_IS_JACK (element), NULL);
- this = GST_JACK (element);
-
- if (!this->bin)
- pad_list = &this->pads;
- else if (this->direction == GST_PAD_SRC)
- pad_list = &this->bin->src_pads;
- else
- pad_list = &this->bin->sink_pads;
-
- if (name) {
- l = *pad_list;
- while (l) {
- if (strcmp (GST_JACK_PAD (l)->name, name) == 0) {
- g_warning ("requested port name %s already in use.", name);
- return NULL;
- }
- l = l->next;
- }
- newname = g_strdup (name);
- } else {
- if (this->direction == GST_PAD_SINK)
- newname = g_strdup ("alsa_pcm:playback_1");
- else
- newname = g_strdup ("alsa_pcm:capture_1");
- }
-
- pad = g_new0 (GstJackPad, 1);
-
- if (!port_name_counts)
- port_name_counts = g_hash_table_new (g_str_hash, g_str_equal);
-
- count =
- GPOINTER_TO_INT (g_hash_table_lookup (port_name_counts,
- this->port_name_prefix));
- g_hash_table_insert (port_name_counts, g_strdup (this->port_name_prefix),
- GINT_TO_POINTER (count + 1));
-
- pad->name = g_strdup_printf ("%s%d", this->port_name_prefix, count);
-
- pad->peer_name = newname;
- pad->pad = gst_pad_new_from_template (templ, newname);
- gst_element_add_pad (GST_ELEMENT (this), pad->pad);
- gst_pad_set_link_function (pad->pad, gst_jack_link);
-
- this->pads = g_list_append (this->pads, pad);
-
- g_print ("returning from request_new_pad, pad %s created, to connect to %s\n",
- pad->name, pad->peer_name);
- return pad->pad;
-}
-
-static GstStateChangeReturn
-gst_jack_change_state (GstElement * element, GstStateChange transition)
-{
- GstJack *this;
- GList *l = NULL, **pads;
- GstJackPad *pad;
- GstCaps *caps;
-
- g_return_val_if_fail (element != NULL, FALSE);
- this = GST_JACK (element);
-
- switch (GST_STATE_PENDING (element)) {
- case GST_STATE_NULL:
- JACK_DEBUG ("%s: NULL", GST_OBJECT_NAME (GST_OBJECT (this)));
-
- break;
-
- case GST_STATE_READY:
- JACK_DEBUG ("%s: READY", GST_OBJECT_NAME (GST_OBJECT (this)));
-
- if (!this->bin) {
- if (!(this->bin = (GstJackBin *) gst_element_get_managing_bin (element))
- || !GST_IS_JACK_BIN (this->bin)) {
- this->bin = NULL;
- g_warning ("jack element %s needs to be contained in a jack bin.",
- GST_OBJECT_NAME (element));
- return GST_STATE_CHANGE_FAILURE;
- }
-
- /* fixme: verify that all names are unique */
- l = this->pads;
- pads =
- (this->direction ==
- GST_PAD_SRC) ? &this->bin->src_pads : &this->bin->sink_pads;
- while (l) {
- pad = GST_JACK_PAD (l);
- JACK_DEBUG ("%s: appending pad %s:%s to list", GST_OBJECT_NAME (this),
- pad->name, pad->peer_name);
- *pads = g_list_append (*pads, pad);
- l = g_list_next (l);
- }
- }
- break;
-
- case GST_STATE_PAUSED:
- JACK_DEBUG ("%s: PAUSED", GST_OBJECT_NAME (GST_OBJECT (this)));
-
- if (GST_STATE (element) == GST_STATE_READY) {
- /* we're in READY->PAUSED */
- l = this->pads;
- while (l) {
- pad = GST_JACK_PAD (l);
- caps = gst_caps_copy (gst_pad_get_negotiated_caps (pad->pad));
- gst_caps_set_simple (caps,
- "rate", G_TYPE_INT, (int) this->bin->rate,
- "buffer-frames", G_TYPE_INT, (gint) this->bin->nframes, NULL);
- if (gst_pad_try_set_caps (pad->pad, caps) <= 0)
- return GST_STATE_CHANGE_FAILURE;
- l = g_list_next (l);
- }
- }
- break;
- case GST_STATE_PLAYING:
- JACK_DEBUG ("%s: PLAYING", GST_OBJECT_NAME (GST_OBJECT (this)));
- break;
- }
-
- JACK_DEBUG ("%s: state change finished", GST_OBJECT_NAME (this));
-
- if (GST_ELEMENT_CLASS (parent_class)->change_state)
- return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
-
- return GST_STATE_CHANGE_SUCCESS;
-}
-
-static GstPadLinkReturn
-gst_jack_link (GstPad * pad, const GstCaps * caps)
-{
- GstJack *this;
- gint rate, buffer_frames;
- GstStructure *structure;
-
- this = GST_JACK (GST_OBJECT_PARENT (pad));
-
- structure = gst_caps_get_structure (caps, 0);
- gst_structure_get_int (structure, "rate", &rate);
- gst_structure_get_int (structure, "buffer-frames", &buffer_frames);
- if (this->bin && (rate != this->bin->rate ||
- buffer_frames != this->bin->nframes))
- return GST_PAD_LINK_REFUSED;
-
- return GST_PAD_LINK_OK;
-}
-
-static void
-gst_jack_loop (GstElement * element)
-{
- GstJack *this;
- GList *pads;
- gint len;
- GstJackPad *pad;
- GstBuffer *buffer;
-
- this = GST_JACK (element);
-
- len = this->bin->nframes * sizeof (sample_t);
-
- pads = this->pads;
- while (pads) {
- pad = GST_JACK_PAD (pads);
-
- if (this->direction == GST_PAD_SINK) {
- buffer = GST_BUFFER (gst_pad_pull (pad->pad));
-
- if (GST_IS_EVENT (buffer)) {
- GstEvent *event = GST_EVENT (buffer);
-
- switch (GST_EVENT_TYPE (buffer)) {
- case GST_EVENT_EOS:
- gst_element_set_eos (element);
- gst_event_unref (event);
- return;
- default:
- gst_pad_event_default (pad->pad, event);
- return;
- }
- }
-
- /* if the other plugins only give out buffer-frames or less (as
- they should), if the length of the GstBuffer is different
- from nframes then the buffer is short and we will get EOS
- next */
- memcpy (pad->data, GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer));
- if (len != GST_BUFFER_SIZE (buffer))
- memset (pad->data + GST_BUFFER_SIZE (buffer), 0,
- len - GST_BUFFER_SIZE (buffer));
-
- gst_buffer_unref (buffer);
- } else {
- buffer = gst_buffer_new ();
- gst_buffer_set_data (buffer, pad->data, len);
- GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_DONTFREE);
-
- gst_pad_push (pad->pad, GST_DATA (buffer));
- }
- pads = g_list_next (pads);
- }
-}
+#include "gstjackaudiosink.h"
static gboolean
plugin_init (GstPlugin * plugin)
{
- if (!gst_element_register (plugin, "jackbin", GST_RANK_NONE,
- GST_TYPE_JACK_BIN))
- return FALSE;
-
- if (!gst_element_register (plugin, "jacksrc", GST_RANK_NONE,
- GST_TYPE_JACK_SRC))
- return FALSE;
-
- if (!gst_element_register (plugin, "jacksink", GST_RANK_NONE,
- GST_TYPE_JACK_SINK))
+ if (!gst_element_register (plugin, "jackaudiosink", GST_RANK_PRIMARY,
+ GST_TYPE_JACK_AUDIO_SINK))
return FALSE;
return TRUE;
@@ -531,5 +36,6 @@ plugin_init (GstPlugin * plugin)
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"jack",
- "Jack Plugin Library", plugin_init, VERSION, "GPL", GST_PACKAGE_NAME,
- GST_PACKAGE_ORIGIN)
+ "Jack elements",
+ plugin_init,
+ VERSION, "LGPL", "Gstreamer", "http://gstreamer.freedesktop.org")
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-06 05:48:39 +0000