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Added some playback helper elements and some test apps, very alpha still.

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Original commit message from CVS:
* configure.ac:
* gst/playback/Makefile.am:
* gst/playback/decodetest.c: (main):
* gst/playback/gstdecodebin.c: (gst_decode_bin_get_type),
(gst_decode_bin_class_init), (gst_decode_bin_factory_filter),
(compare_ranks), (gst_decode_bin_init), (gst_decode_bin_dispose),
(find_compatibles), (close_pad_link), (try_to_link_1), (new_pad),
(close_link), (type_found), (gst_decode_bin_set_property),
(gst_decode_bin_get_property), (gst_decode_bin_change_state),
(gst_decode_bin_get_event_masks), (gst_decode_bin_send_event),
(gst_decode_bin_get_formats), (gst_decode_bin_convert),
(gst_decode_bin_get_query_types), (gst_decode_bin_query),
(plugin_init):
* gst/playback/gstplaybin.c: (gst_play_bin_get_type),
(gst_play_bin_class_init), (gst_play_bin_init),
(gst_play_bin_dispose), (gen_default_output), (rebuild_pipeline),
(collect_sink_pads), (find_compatibles), (close_pad_link),
(try_to_link_1), (new_pad), (close_link), (type_found),
(setup_source), (gst_play_bin_set_property),
(gst_play_bin_get_property), (gst_play_bin_factory_filter),
(compare_ranks), (gst_play_bin_collect_factories),
(gst_play_bin_change_state), (gst_play_bin_add_element),
(gst_play_bin_remove_element), (gst_play_bin_get_event_masks),
(gst_play_bin_send_event), (gst_play_bin_get_formats),
(gst_play_bin_convert), (gst_play_bin_get_query_types),
(gst_play_bin_query), (gst_play_bin_get_clock), (plugin_init):
* gst/playback/test.c: (main):
Added some playback helper elements and some test apps, very alpha
still.
This commit is contained in:
Wim Taymans 2004-07-05 11:14:30 +00:00
parent 1ca7052a58
commit 4a54d4e80b
8 changed files with 1483 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
ChangeLog
View file

@ -1,3 +1,35 @@
2004-07-05 Wim Taymans <wim@fluendo.com>
* configure.ac:
* gst/playback/Makefile.am:
* gst/playback/decodetest.c: (main):
* gst/playback/gstdecodebin.c: (gst_decode_bin_get_type),
(gst_decode_bin_class_init), (gst_decode_bin_factory_filter),
(compare_ranks), (gst_decode_bin_init), (gst_decode_bin_dispose),
(find_compatibles), (close_pad_link), (try_to_link_1), (new_pad),
(close_link), (type_found), (gst_decode_bin_set_property),
(gst_decode_bin_get_property), (gst_decode_bin_change_state),
(gst_decode_bin_get_event_masks), (gst_decode_bin_send_event),
(gst_decode_bin_get_formats), (gst_decode_bin_convert),
(gst_decode_bin_get_query_types), (gst_decode_bin_query),
(plugin_init):
* gst/playback/gstplaybin.c: (gst_play_bin_get_type),
(gst_play_bin_class_init), (gst_play_bin_init),
(gst_play_bin_dispose), (gen_default_output), (rebuild_pipeline),
(collect_sink_pads), (find_compatibles), (close_pad_link),
(try_to_link_1), (new_pad), (close_link), (type_found),
(setup_source), (gst_play_bin_set_property),
(gst_play_bin_get_property), (gst_play_bin_factory_filter),
(compare_ranks), (gst_play_bin_collect_factories),
(gst_play_bin_change_state), (gst_play_bin_add_element),
(gst_play_bin_remove_element), (gst_play_bin_get_event_masks),
(gst_play_bin_send_event), (gst_play_bin_get_formats),
(gst_play_bin_convert), (gst_play_bin_get_query_types),
(gst_play_bin_query), (gst_play_bin_get_clock), (plugin_init):
* gst/playback/test.c: (main):
Added some playback helper elements and some test apps, very alpha
still.
2004-07-04 Benjamin Otte <otte@gnome.org>
* ext/alsa/gstalsa.c: (gst_alsa_xrun_recovery):

2
common

@ -1 +1 @@
Subproject commit 1af22afdec71295108f882c828e08f10d8a3e94b
Subproject commit 59a2885f01e3092ffaefbed270f331c143b16d6b

2
configure.ac
View file

@ -381,6 +381,7 @@ GST_PLUGINS_ALL="\
multipart \
overlay \
passthrough \
playback \
playondemand \
qtdemux \
realmedia \
@ -1843,6 +1844,7 @@ gst/monoscope/Makefile
gst/multipart/Makefile
gst/overlay/Makefile
gst/passthrough/Makefile
gst/playback/Makefile
gst/playondemand/Makefile
gst/qtdemux/Makefile
gst/realmedia/Makefile

21
gst/playback/Makefile.am Normal file
View file

@ -0,0 +1,21 @@
plugindir = $(libdir)/gstreamer-@GST_MAJORMINOR@
plugin_LTLIBRARIES = libgstplaybin.la libgstdecodebin.la
libgstplaybin_la_SOURCES = gstplaybin.c
libgstplaybin_la_CFLAGS = $(GST_CFLAGS)
libgstplaybin_la_LIBADD =
libgstplaybin_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstdecodebin_la_SOURCES = gstdecodebin.c
libgstdecodebin_la_CFLAGS = $(GST_CFLAGS)
libgstdecodebin_la_LIBADD =
libgstdecodebin_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
bin_PROGRAMS = test decodetest
test_LDADD = $(GST_LIBS)
test_CFLAGS = $(GST_CFLAGS)
decodetest_LDADD = $(GST_LIBS)
decodetest_CFLAGS = $(GST_CFLAGS)

54
gst/playback/decodetest.c Normal file
View file

@ -0,0 +1,54 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#include <gst/gst.h>
gint
main (gint argc, gchar * argv[])
{
GstElement *decoder;
GstElement *source;
GstElement *pipeline;
GstElementStateReturn res;
gst_init (&argc, &argv);
pipeline = gst_pipeline_new ("pipeline");
source = gst_element_factory_make ("gnomevfssrc", "source");
g_assert (source);
g_object_set (G_OBJECT (source), "location", argv[1], NULL);
decoder = gst_element_factory_make ("decodebin", "decoder");
g_assert (decoder);
gst_bin_add (GST_BIN (pipeline), source);
gst_bin_add (GST_BIN (pipeline), decoder);
gst_element_link_pads (source, "src", decoder, "sink");
res = gst_element_set_state (pipeline, GST_STATE_PLAYING);
if (res != GST_STATE_SUCCESS) {
g_print ("could not play\n");
return -1;
}
gst_main ();
return 0;
}

564
gst/playback/gstdecodebin.c Normal file
View file

@ -0,0 +1,564 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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 <string.h>
#include <gst/gst.h>
/* generic templates */
GstStaticPadTemplate decoder_bin_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
GstStaticPadTemplate decoder_bin_src_template =
GST_STATIC_PAD_TEMPLATE ("src%d",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_STATIC_CAPS_ANY);
GST_DEBUG_CATEGORY_STATIC (gst_decode_bin_debug);
#define GST_CAT_DEFAULT gst_decode_bin_debug
#define GST_TYPE_DECODE_BIN (gst_decode_bin_get_type())
#define GST_DECODE_BIN(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DECODE_BIN,GstDecodeBin))
#define GST_DECODE_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DECODE_BIN,GstDecodeBinClass))
#define GST_IS_DECODE_BIN(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DECODE_BIN))
#define GST_IS_DECODE_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DECODE_BIN))
typedef struct _GstDecodeBin GstDecodeBin;
typedef struct _GstDecodeBinClass GstDecodeBinClass;
struct _GstDecodeBin
{
GstBin bin;
GstElement *typefind;
GList *factories;
gint numpads;
};
struct _GstDecodeBinClass
{
GstBinClass parent_class;
};
/* props */
enum
{
ARG_0,
ARG_THREADED,
};
/* signals */
enum
{
LAST_SIGNAL
};
static void gst_decode_bin_class_init (GstDecodeBinClass * klass);
static void gst_decode_bin_init (GstDecodeBin * decode_bin);
static void gst_decode_bin_dispose (GObject * object);
static void gst_decode_bin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * spec);
static void gst_decode_bin_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * spec);
static GstElementStateReturn gst_decode_bin_change_state (GstElement * element);
static const GstEventMask *gst_decode_bin_get_event_masks (GstElement *
element);
static gboolean gst_decode_bin_send_event (GstElement * element,
GstEvent * event);
static const GstFormat *gst_decode_bin_get_formats (GstElement * element);
static gboolean gst_decode_bin_convert (GstElement * element,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value);
static const GstQueryType *gst_decode_bin_get_query_types (GstElement *
element);
static gboolean gst_decode_bin_query (GstElement * element, GstQueryType type,
GstFormat * format, gint64 * value);
static void type_found (GstElement * typefind, guint probability,
GstCaps * caps, GstDecodeBin * decode_bin);
static GstElement *try_to_link_1 (GstDecodeBin * decode_bin, GstPad * pad,
GList * factories);
static void close_link (GstElement * element, GstDecodeBin * decode_bin);
static void close_pad_link (GstElement * element, GstPad * pad,
GstCaps * caps, GstDecodeBin * decode_bin);
static GstElementClass *parent_class;
//static guint gst_decode_bin_signals[LAST_SIGNAL] = { 0 };
static GstElementDetails gst_decode_bin_details = {
"Decoder Bin",
"Generic/Bin/Decoder",
"Autoplug and decode to raw media",
"Wim Taymans <wim@fluendo.com>"
};
static GType
gst_decode_bin_get_type (void)
{
static GType gst_decode_bin_type = 0;
if (!gst_decode_bin_type) {
static const GTypeInfo gst_decode_bin_info = {
sizeof (GstDecodeBinClass),
NULL,
NULL,
(GClassInitFunc) gst_decode_bin_class_init,
NULL,
NULL,
sizeof (GstDecodeBin),
0,
(GInstanceInitFunc) gst_decode_bin_init,
NULL
};
gst_decode_bin_type =
g_type_register_static (GST_TYPE_BIN, "GstDecodeBin",
&gst_decode_bin_info, 0);
}
return gst_decode_bin_type;
}
static void
gst_decode_bin_class_init (GstDecodeBinClass * klass)
{
GObjectClass *gobject_klass;
GstElementClass *gstelement_klass;
GstBinClass *gstbin_klass;
gobject_klass = (GObjectClass *) klass;
gstelement_klass = (GstElementClass *) klass;
gstbin_klass = (GstBinClass *) klass;
parent_class = g_type_class_ref (gst_bin_get_type ());
gobject_klass->set_property = gst_decode_bin_set_property;
gobject_klass->get_property = gst_decode_bin_get_property;
g_object_class_install_property (gobject_klass, ARG_THREADED,
g_param_spec_boolean ("threaded", "Threaded", "Use threads",
TRUE, G_PARAM_READWRITE));
gobject_klass->dispose = GST_DEBUG_FUNCPTR (gst_decode_bin_dispose);
gst_element_class_add_pad_template (gstelement_klass,
gst_static_pad_template_get (&decoder_bin_src_template));
gst_element_class_set_details (gstelement_klass, &gst_decode_bin_details);
gstelement_klass->change_state =
GST_DEBUG_FUNCPTR (gst_decode_bin_change_state);
gstelement_klass->get_event_masks =
GST_DEBUG_FUNCPTR (gst_decode_bin_get_event_masks);
gstelement_klass->send_event = GST_DEBUG_FUNCPTR (gst_decode_bin_send_event);
gstelement_klass->get_formats =
GST_DEBUG_FUNCPTR (gst_decode_bin_get_formats);
gstelement_klass->convert = GST_DEBUG_FUNCPTR (gst_decode_bin_convert);
gstelement_klass->get_query_types =
GST_DEBUG_FUNCPTR (gst_decode_bin_get_query_types);
gstelement_klass->query = GST_DEBUG_FUNCPTR (gst_decode_bin_query);
}
static gboolean
gst_decode_bin_factory_filter (GstPluginFeature * feature,
GstDecodeBin * decode_bin)
{
guint rank;
if (!GST_IS_ELEMENT_FACTORY (feature))
return FALSE;
rank = gst_plugin_feature_get_rank (feature);
if (rank < GST_RANK_SECONDARY)
return FALSE;
return TRUE;
}
static gint
compare_ranks (GstPluginFeature * f1, GstPluginFeature * f2)
{
return gst_plugin_feature_get_rank (f2) - gst_plugin_feature_get_rank (f1);
}
static void
gst_decode_bin_init (GstDecodeBin * decode_bin)
{
GList *factories;
factories = gst_registry_pool_feature_filter (
(GstPluginFeatureFilter) gst_decode_bin_factory_filter,
FALSE, decode_bin);
decode_bin->factories = g_list_sort (factories, (GCompareFunc) compare_ranks);
decode_bin->typefind = gst_element_factory_make ("typefind", "typefind");
if (!decode_bin->typefind) {
g_warning ("can't find typefind element");
}
gst_bin_add (GST_BIN (decode_bin), decode_bin->typefind);
gst_element_add_ghost_pad (GST_ELEMENT (decode_bin),
gst_element_get_pad (decode_bin->typefind, "sink"), "sink");
g_signal_connect (G_OBJECT (decode_bin->typefind), "have_type",
G_CALLBACK (type_found), decode_bin);
decode_bin->numpads = 0;
}
static void
gst_decode_bin_dispose (GObject * object)
{
GstDecodeBin *decode_bin;
decode_bin = GST_DECODE_BIN (object);
if (G_OBJECT_CLASS (parent_class)->dispose) {
G_OBJECT_CLASS (parent_class)->dispose (object);
}
}
static GList *
find_compatibles (GstDecodeBin * decode_bin, const GstCaps * caps)
{
GList *factories;
GList *to_try = NULL;
for (factories = decode_bin->factories; factories;
factories = g_list_next (factories)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY (factories->data);
const GList *templates;
GList *walk;
templates = gst_element_factory_get_pad_templates (factory);
for (walk = (GList *) templates; walk; walk = g_list_next (walk)) {
GstPadTemplate *templ = GST_PAD_TEMPLATE (walk->data);
if (templ->direction == GST_PAD_SINK) {
GstCaps *intersect;
intersect =
gst_caps_intersect (caps, gst_pad_template_get_caps (templ));
if (!gst_caps_is_empty (intersect)) {
to_try = g_list_append (to_try, factory);
}
}
}
}
return to_try;
}
static void
close_pad_link (GstElement * element, GstPad * pad, GstCaps * caps,
GstDecodeBin * decode_bin)
{
GList *to_try;
const gchar *mimetype;
GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
mimetype = gst_structure_get_name (structure);
/* first see if this is raw */
if (g_str_has_prefix (mimetype, "video/x-raw") ||
g_str_has_prefix (mimetype, "audio/x-raw")) {
gchar *padname;
padname = g_strdup_printf ("src%d", decode_bin->numpads);
decode_bin->numpads++;
gst_element_add_ghost_pad (GST_ELEMENT (decode_bin), pad, padname);
g_free (padname);
return;
}
/* then continue plugging */
to_try = find_compatibles (decode_bin, caps);
if (to_try == NULL) {
gchar *capsstr = gst_caps_to_string (caps);
g_warning ("don't know how to handle %s", capsstr);
g_free (capsstr);
return;
}
try_to_link_1 (decode_bin, pad, to_try);
}
static GstElement *
try_to_link_1 (GstDecodeBin * decode_bin, GstPad * pad, GList * factories)
{
GList *walk;
for (walk = factories; walk; walk = g_list_next (walk)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY (walk->data);
GstElement *element;
gboolean ret;
g_print ("trying to link %s\n",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
element = gst_element_factory_create (factory, NULL);
if (element == NULL)
continue;
gst_bin_add (GST_BIN (decode_bin), element);
ret = gst_pad_link (pad, gst_element_get_pad (element, "sink"));
if (ret) {
const gchar *klass;
GstElementFactory *factory;
factory = gst_element_get_factory (element);
klass = gst_element_factory_get_klass (factory);
if (strstr (klass, "Demux") != NULL) {
g_print ("thread after %s\n", gst_element_get_name (element));
}
close_link (element, decode_bin);
gst_element_sync_state_with_parent (element);
return element;
} else {
gst_bin_remove (GST_BIN (decode_bin), element);
}
}
return NULL;
}
static void
new_pad (GstElement * element, GstPad * pad, GstDecodeBin * decode_bin)
{
close_pad_link (element, pad, gst_pad_get_caps (pad), decode_bin);
}
static void
close_link (GstElement * element, GstDecodeBin * decode_bin)
{
GList *pads;
gboolean dynamic = FALSE;
for (pads = gst_element_get_pad_template_list (element); pads;
pads = g_list_next (pads)) {
GstPadTemplate *templ = GST_PAD_TEMPLATE (pads->data);
if (GST_PAD_TEMPLATE_DIRECTION (templ) != GST_PAD_SRC)
continue;
switch (GST_PAD_TEMPLATE_PRESENCE (templ)) {
case GST_PAD_ALWAYS:
{
GstPad *pad =
gst_element_get_pad (element,
GST_PAD_TEMPLATE_NAME_TEMPLATE (templ));
if (pad) {
close_pad_link (element, pad, gst_pad_get_caps (pad), decode_bin);
}
break;
}
case GST_PAD_SOMETIMES:
{
GstPad *pad =
gst_element_get_pad (element,
GST_PAD_TEMPLATE_NAME_TEMPLATE (templ));
if (pad) {
close_pad_link (element, pad, gst_pad_get_caps (pad), decode_bin);
} else {
dynamic = TRUE;
}
break;
}
case GST_PAD_REQUEST:
break;
}
}
if (dynamic) {
g_signal_connect (G_OBJECT (element), "new_pad",
G_CALLBACK (new_pad), decode_bin);
}
}
static void
type_found (GstElement * typefind, guint probability, GstCaps * caps,
GstDecodeBin * decode_bin)
{
gchar *capsstr;
capsstr = gst_caps_to_string (caps);
g_print ("found type %s\n", capsstr);
g_free (capsstr);
close_pad_link (typefind, gst_element_get_pad (typefind, "src"), caps,
decode_bin);
}
static void
gst_decode_bin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstDecodeBin *decode_bin;
g_return_if_fail (GST_IS_DECODE_BIN (object));
decode_bin = GST_DECODE_BIN (object);
switch (prop_id) {
case ARG_THREADED:
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_decode_bin_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstDecodeBin *decode_bin;
g_return_if_fail (GST_IS_DECODE_BIN (object));
decode_bin = GST_DECODE_BIN (object);
switch (prop_id) {
case ARG_THREADED:
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstElementStateReturn
gst_decode_bin_change_state (GstElement * element)
{
GstElementStateReturn ret = GST_STATE_SUCCESS;
GstDecodeBin *decode_bin;
decode_bin = GST_DECODE_BIN (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
break;
case GST_STATE_READY_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_PLAYING:
break;
case GST_STATE_PLAYING_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_READY:
break;
case GST_STATE_READY_TO_NULL:
break;
default:
g_assert_not_reached ();
break;
}
if (ret == GST_STATE_SUCCESS) {
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
}
return ret;
}
static const GstEventMask *
gst_decode_bin_get_event_masks (GstElement * element)
{
return NULL;
}
static gboolean
gst_decode_bin_send_event (GstElement * element, GstEvent * event)
{
gboolean res = FALSE;
return res;
}
static const GstFormat *
gst_decode_bin_get_formats (GstElement * element)
{
static GstFormat formats[] = {
GST_FORMAT_TIME,
GST_FORMAT_BYTES,
GST_FORMAT_DEFAULT,
0,
};
return formats;
}
static gboolean
gst_decode_bin_convert (GstElement * element,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
{
return FALSE;
}
static const GstQueryType *
gst_decode_bin_get_query_types (GstElement * element)
{
static const GstQueryType query_types[] = {
GST_QUERY_TOTAL,
GST_QUERY_POSITION,
GST_QUERY_START,
GST_QUERY_SEGMENT_END,
0
};
return query_types;
}
static gboolean
gst_decode_bin_query (GstElement * element, GstQueryType type,
GstFormat * format, gint64 * value)
{
gboolean res = FALSE;
return res;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gst_decode_bin_debug, "decodebin", 0, "decoder bin");
return gst_element_register (plugin, "decodebin", GST_RANK_NONE,
GST_TYPE_DECODE_BIN);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"decodebin",
"decoder bin", plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN)

758
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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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 <string.h>
#include <gst/gst.h>
GST_DEBUG_CATEGORY_STATIC (gst_play_bin_debug);
#define GST_CAT_DEFAULT gst_play_bin_debug
#define GST_TYPE_PLAY_BIN (gst_play_bin_get_type())
#define GST_PLAY_BIN(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PLAY_BIN,GstPlayBin))
#define GST_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PLAY_BIN,GstPlayBinClass))
#define GST_IS_PLAY_BIN(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PLAY_BIN))
#define GST_IS_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PLAY_BIN))
typedef struct _GstPlayBin GstPlayBin;
typedef struct _GstPlayBinClass GstPlayBinClass;
struct _GstPlayBin
{
GstBin bin;
GstElement *thread;
/* properties */
gchar *uri;
GstElement *source;
GList *factories;
GstElement *output;
GList *outpads;
GList *user_elements;
};
struct _GstPlayBinClass
{
GstBinClass parent_class;
};
/* props */
enum
{
ARG_0,
ARG_URI,
ARG_THREADED,
ARG_OUTPUT,
};
/* signals */
enum
{
LAST_SIGNAL
};
static void gst_play_bin_class_init (GstPlayBinClass * klass);
static void gst_play_bin_init (GstPlayBin * play_bin);
static void gst_play_bin_dispose (GObject * object);
static void gst_play_bin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * spec);
static void gst_play_bin_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * spec);
static GstElementStateReturn gst_play_bin_change_state (GstElement * element);
static const GstEventMask *gst_play_bin_get_event_masks (GstElement * element);
static gboolean gst_play_bin_send_event (GstElement * element,
GstEvent * event);
static const GstFormat *gst_play_bin_get_formats (GstElement * element);
static gboolean gst_play_bin_convert (GstElement * element,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value);
static const GstQueryType *gst_play_bin_get_query_types (GstElement * element);
static gboolean gst_play_bin_query (GstElement * element, GstQueryType type,
GstFormat * format, gint64 * value);
static GstClock *gst_play_bin_get_clock (GstElement * element);
static void gst_play_bin_add_element (GstBin * bin, GstElement * element);
static void gst_play_bin_remove_element (GstBin * bin, GstElement * element);
static GstElement *try_to_link_1 (GstPlayBin * play_bin, GstPad * pad,
GList * factories);
static void close_link (GstElement * element, GstPlayBin * play_bin);
static void close_pad_link (GstElement * element, GstPad * pad,
GstCaps * caps, GstPlayBin * play_bin);
static GstElementClass *parent_class;
//static guint gst_play_bin_signals[LAST_SIGNAL] = { 0 };
static GstElementDetails gst_play_bin_details = {
"Player Bin",
"Generic/Bin/Player",
"Autoplug and play media from an uri",
"Wim Taymans <wim.taymans@chello.be>"
};
static GType
gst_play_bin_get_type (void)
{
static GType gst_play_bin_type = 0;
if (!gst_play_bin_type) {
static const GTypeInfo gst_play_bin_info = {
sizeof (GstPlayBinClass),
NULL,
NULL,
(GClassInitFunc) gst_play_bin_class_init,
NULL,
NULL,
sizeof (GstPlayBin),
0,
(GInstanceInitFunc) gst_play_bin_init,
NULL
};
gst_play_bin_type =
g_type_register_static (GST_TYPE_BIN, "GstPlayBin", &gst_play_bin_info,
0);
}
return gst_play_bin_type;
}
static void
gst_play_bin_class_init (GstPlayBinClass * klass)
{
GObjectClass *gobject_klass;
GstElementClass *gstelement_klass;
GstBinClass *gstbin_klass;
gobject_klass = (GObjectClass *) klass;
gstelement_klass = (GstElementClass *) klass;
gstbin_klass = (GstBinClass *) klass;
parent_class = g_type_class_ref (gst_bin_get_type ());
gobject_klass->set_property = gst_play_bin_set_property;
gobject_klass->get_property = gst_play_bin_get_property;
g_object_class_install_property (gobject_klass, ARG_URI,
g_param_spec_string ("uri", "URI", "URI of the media to play",
NULL, G_PARAM_READWRITE));
g_object_class_install_property (gobject_klass, ARG_THREADED,
g_param_spec_boolean ("threaded", "Threaded", "Use threads",
TRUE, G_PARAM_READWRITE));
g_object_class_install_property (gobject_klass, ARG_OUTPUT,
g_param_spec_object ("output", "Ouput",
"the output element to use (NULL = default a/v sink)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE));
gobject_klass->dispose = GST_DEBUG_FUNCPTR (gst_play_bin_dispose);
gst_element_class_set_details (gstelement_klass, &gst_play_bin_details);
gstelement_klass->change_state =
GST_DEBUG_FUNCPTR (gst_play_bin_change_state);
gstelement_klass->get_event_masks =
GST_DEBUG_FUNCPTR (gst_play_bin_get_event_masks);
gstelement_klass->send_event = GST_DEBUG_FUNCPTR (gst_play_bin_send_event);
gstelement_klass->get_formats = GST_DEBUG_FUNCPTR (gst_play_bin_get_formats);
gstelement_klass->convert = GST_DEBUG_FUNCPTR (gst_play_bin_convert);
gstelement_klass->get_query_types =
GST_DEBUG_FUNCPTR (gst_play_bin_get_query_types);
gstelement_klass->query = GST_DEBUG_FUNCPTR (gst_play_bin_query);
gstelement_klass->get_clock = GST_DEBUG_FUNCPTR (gst_play_bin_get_clock);
gstbin_klass->add_element = GST_DEBUG_FUNCPTR (gst_play_bin_add_element);
gstbin_klass->remove_element =
GST_DEBUG_FUNCPTR (gst_play_bin_remove_element);
}
static void
gst_play_bin_init (GstPlayBin * play_bin)
{
play_bin->uri = NULL;
play_bin->output = NULL;
play_bin->user_elements = NULL;
GST_FLAG_SET (play_bin, GST_BIN_SELF_SCHEDULABLE);
}
static void
gst_play_bin_dispose (GObject * object)
{
GstPlayBin *play_bin;
play_bin = GST_PLAY_BIN (object);
g_free (play_bin->uri);
if (G_OBJECT_CLASS (parent_class)->dispose) {
G_OBJECT_CLASS (parent_class)->dispose (object);
}
}
static GstElement *
gen_default_output (GstPlayBin * play_bin, GstBin * parent)
{
GstElement *output;
GstElement *videoout;
GstElement *videoconv;
GstElement *audioout;
output = gst_bin_new ("default_out");
videoconv = gst_element_factory_make ("ffmpegcolorspace", NULL);
videoout = gst_element_factory_make ("ximagesink", NULL);
audioout = gst_element_factory_make ("osssink", NULL);
gst_bin_add (GST_BIN (output), videoconv);
gst_bin_add (GST_BIN (output), videoout);
gst_bin_add (GST_BIN (output), audioout);
gst_bin_add (GST_BIN (parent), output);
gst_element_set_locked_state (output, TRUE);
gst_element_link_pads (videoconv, "src", videoout, "sink");
gst_element_add_ghost_pad (output,
gst_element_get_pad (videoconv, "sink"), "default_video_sink");
gst_element_add_ghost_pad (output,
gst_element_get_pad (audioout, "sink"), "default_audio_sink");
return output;
}
static void
rebuild_pipeline (GstPlayBin * play_bin)
{
GstElementState oldstate;
if (play_bin->thread == NULL)
return;
oldstate = gst_element_get_state (play_bin->thread);
gst_element_set_state (play_bin->thread, GST_STATE_NULL);
/* remove old elements */
/* set to old state again */
gst_element_set_state (play_bin->thread, oldstate);
}
static GList *
collect_sink_pads (GstElement * element)
{
GList *sinkpads = NULL;
const GList *pads;
for (pads = gst_element_get_pad_list (element); pads;
pads = g_list_next (pads)) {
GstPad *pad = GST_PAD (pads->data);
if (GST_PAD_DIRECTION (pad) != GST_PAD_SINK)
continue;
sinkpads = g_list_append (sinkpads, pad);
}
return sinkpads;
}
static GList *
find_compatibles (GstPlayBin * play_bin, const GstCaps * caps)
{
GList *factories;
GList *to_try = NULL;
for (factories = play_bin->factories; factories;
factories = g_list_next (factories)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY (factories->data);
const GList *templates;
GList *walk;
templates = gst_element_factory_get_pad_templates (factory);
for (walk = (GList *) templates; walk; walk = g_list_next (walk)) {
GstPadTemplate *templ = GST_PAD_TEMPLATE (walk->data);
if (templ->direction == GST_PAD_SINK) {
GstCaps *intersect;
intersect =
gst_caps_intersect (caps, gst_pad_template_get_caps (templ));
if (!gst_caps_is_empty (intersect)) {
to_try = g_list_append (to_try, factory);
}
}
}
}
return to_try;
}
static void
close_pad_link (GstElement * element, GstPad * pad, GstCaps * caps,
GstPlayBin * play_bin)
{
GList *to_try;
/* first try to close to one of the sinkpads */
for (to_try = play_bin->outpads; to_try; to_try = g_list_next (to_try)) {
GstPad *sinkpad = GST_PAD (to_try->data);
gboolean res;
if (gst_pad_is_linked (sinkpad))
continue;
res = gst_pad_can_link_filtered (pad, sinkpad, caps);
if (res) {
res = gst_pad_link_filtered (pad, sinkpad, caps);
g_print ("closed pad %s:%s to %s:%s\n",
GST_DEBUG_PAD_NAME (pad), GST_DEBUG_PAD_NAME (sinkpad));
return;
}
}
to_try = find_compatibles (play_bin, caps);
if (to_try == NULL) {
gchar *capsstr = gst_caps_to_string (caps);
g_warning ("don't know how to handle %s", capsstr);
g_free (capsstr);
return;
}
try_to_link_1 (play_bin, pad, to_try);
}
static GstElement *
try_to_link_1 (GstPlayBin * play_bin, GstPad * pad, GList * factories)
{
GList *walk;
for (walk = factories; walk; walk = g_list_next (walk)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY (walk->data);
GstElement *element;
gboolean ret;
g_print ("trying to link %s\n",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
element = gst_element_factory_create (factory, NULL);
if (element == NULL)
continue;
gst_bin_add (GST_BIN (play_bin->thread), element);
ret = gst_pad_link (pad, gst_element_get_pad (element, "sink"));
if (ret) {
const gchar *klass;
GstElementFactory *factory;
factory = gst_element_get_factory (element);
klass = gst_element_factory_get_klass (factory);
if (strstr (klass, "Demux") != NULL) {
g_print ("thread after %s\n", gst_element_get_name (element));
}
close_link (element, play_bin);
gst_element_sync_state_with_parent (element);
return element;
} else {
gst_bin_remove (GST_BIN (play_bin->thread), element);
}
}
return NULL;
}
static void
new_pad (GstElement * element, GstPad * pad, GstPlayBin * play_bin)
{
close_pad_link (element, pad, gst_pad_get_caps (pad), play_bin);
}
static void
close_link (GstElement * element, GstPlayBin * play_bin)
{
GList *pads;
gboolean dynamic = FALSE;
for (pads = gst_element_get_pad_template_list (element); pads;
pads = g_list_next (pads)) {
GstPadTemplate *templ = GST_PAD_TEMPLATE (pads->data);
if (GST_PAD_TEMPLATE_DIRECTION (templ) != GST_PAD_SRC)
continue;
switch (GST_PAD_TEMPLATE_PRESENCE (templ)) {
case GST_PAD_ALWAYS:
{
GstPad *pad =
gst_element_get_pad (element,
GST_PAD_TEMPLATE_NAME_TEMPLATE (templ));
if (pad) {
close_pad_link (element, pad, gst_pad_get_caps (pad), play_bin);
}
break;
}
case GST_PAD_SOMETIMES:
{
GstPad *pad =
gst_element_get_pad (element,
GST_PAD_TEMPLATE_NAME_TEMPLATE (templ));
if (pad) {
close_pad_link (element, pad, gst_pad_get_caps (pad), play_bin);
} else {
dynamic = TRUE;
}
break;
}
case GST_PAD_REQUEST:
break;
}
}
if (dynamic) {
g_signal_connect (G_OBJECT (element), "new_pad",
G_CALLBACK (new_pad), play_bin);
}
}
static void
type_found (GstElement * typefind, guint probability, GstCaps * caps,
GstPlayBin * play_bin)
{
gchar *capsstr;
capsstr = gst_caps_to_string (caps);
g_print ("found type %s\n", capsstr);
g_free (capsstr);
close_pad_link (typefind, gst_element_get_pad (typefind, "src"), caps,
play_bin);
}
static gboolean
setup_source (GstPlayBin * play_bin)
{
if (play_bin->source) {
gst_bin_remove (GST_BIN (play_bin->thread), play_bin->source);
gst_object_unref (GST_OBJECT (play_bin->source));
}
if (!play_bin->output) {
play_bin->output =
gen_default_output (play_bin, GST_BIN (play_bin->thread));
}
play_bin->outpads = collect_sink_pads (play_bin->output);
play_bin->source =
gst_element_make_from_uri (GST_URI_SRC, play_bin->uri, "source");
if (!play_bin->source) {
g_warning ("don't know how to read %s", play_bin->uri);
return FALSE;
}
{
GstElement *typefind;
gboolean res;
gst_bin_add (GST_BIN (play_bin->thread), play_bin->source);
typefind = gst_element_factory_make ("typefind", "typefind");
if (!typefind) {
g_warning ("can't find typefind element");
return FALSE;
}
gst_bin_add (GST_BIN (play_bin->thread), typefind);
res = gst_element_link_pads (play_bin->source, "src", typefind, "sink");
if (!res) {
g_warning ("can't link source to typefind element");
return FALSE;
}
g_signal_connect (G_OBJECT (typefind), "have_type",
G_CALLBACK (type_found), play_bin);
}
return TRUE;
}
static void
gst_play_bin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstPlayBin *play_bin;
g_return_if_fail (GST_IS_PLAY_BIN (object));
play_bin = GST_PLAY_BIN (object);
switch (prop_id) {
case ARG_URI:
{
const gchar *uri = g_value_get_string (value);
if (uri == NULL) {
g_warning ("cannot set NULL uri");
return;
}
if (!play_bin->uri || !strcmp (play_bin->uri, uri)) {
g_free (play_bin->uri);
play_bin->uri = g_strdup (uri);
rebuild_pipeline (play_bin);
}
break;
}
case ARG_OUTPUT:
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_play_bin_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstPlayBin *play_bin;
g_return_if_fail (GST_IS_PLAY_BIN (object));
play_bin = GST_PLAY_BIN (object);
switch (prop_id) {
case ARG_URI:
g_value_set_string (value, play_bin->uri);
break;
case ARG_OUTPUT:
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_play_bin_factory_filter (GstPluginFeature * feature, GstPlayBin * play_bin)
{
guint rank;
if (!GST_IS_ELEMENT_FACTORY (feature))
return FALSE;
rank = gst_plugin_feature_get_rank (feature);
if (rank < GST_RANK_SECONDARY)
return FALSE;
return TRUE;
}
static gint
compare_ranks (GstPluginFeature * f1, GstPluginFeature * f2)
{
return gst_plugin_feature_get_rank (f2) - gst_plugin_feature_get_rank (f1);
}
static void
gst_play_bin_collect_factories (GstPlayBin * play_bin)
{
GList *factories;
factories = gst_registry_pool_feature_filter (
(GstPluginFeatureFilter) gst_play_bin_factory_filter, FALSE, play_bin);
play_bin->factories = g_list_sort (factories, (GCompareFunc) compare_ranks);
}
static GstElementStateReturn
gst_play_bin_change_state (GstElement * element)
{
GstElementStateReturn ret = GST_STATE_SUCCESS;
GstPlayBin *play_bin;
play_bin = GST_PLAY_BIN (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
{
GstScheduler *sched;
play_bin->thread = gst_thread_new ("internal_thread");
sched = gst_scheduler_factory_make ("opt", play_bin->thread);
if (sched) {
gst_element_set_scheduler (play_bin->thread, sched);
gst_object_set_parent (GST_OBJECT (play_bin->thread),
GST_OBJECT (play_bin));
gst_element_set_state (play_bin->thread, GST_STATE_READY);
} else {
g_warning ("could not get 'opt' scheduler");
gst_object_unref (GST_OBJECT (play_bin->thread));
play_bin->thread = NULL;
ret = GST_STATE_FAILURE;
}
gst_play_bin_collect_factories (play_bin);
break;
}
case GST_STATE_READY_TO_PAUSED:
{
if (!setup_source (play_bin)) {
GST_ELEMENT_ERROR (GST_ELEMENT (play_bin), LIBRARY, TOO_LAZY, (NULL),
("cannot handle uri \"%s\"", play_bin->uri));
ret = GST_STATE_FAILURE;
} else {
gst_element_set_locked_state (play_bin->output, FALSE);
gst_element_sync_state_with_parent (play_bin->output);
ret = gst_element_set_state (play_bin->thread, GST_STATE_PAUSED);
}
break;
}
case GST_STATE_PAUSED_TO_PLAYING:
ret = gst_element_set_state (play_bin->thread, GST_STATE_PLAYING);
break;
case GST_STATE_PLAYING_TO_PAUSED:
ret = gst_element_set_state (play_bin->thread, GST_STATE_PAUSED);
break;
case GST_STATE_PAUSED_TO_READY:
ret = gst_element_set_state (play_bin->thread, GST_STATE_READY);
break;
case GST_STATE_READY_TO_NULL:
ret = gst_element_set_state (play_bin->thread, GST_STATE_NULL);
gst_object_unref (GST_OBJECT (play_bin->thread));
break;
default:
g_assert_not_reached ();
break;
}
if (ret == GST_STATE_SUCCESS) {
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
}
return ret;
}
static void
gst_play_bin_add_element (GstBin * bin, GstElement * element)
{
GstPlayBin *play_bin;
play_bin = GST_PLAY_BIN (bin);
play_bin->user_elements = g_list_prepend (play_bin->user_elements, element);
}
static void
gst_play_bin_remove_element (GstBin * bin, GstElement * element)
{
GstPlayBin *play_bin;
play_bin = GST_PLAY_BIN (bin);
play_bin->user_elements = g_list_remove (play_bin->user_elements, element);
}
static const GstEventMask *
gst_play_bin_get_event_masks (GstElement * element)
{
return NULL;
}
static gboolean
gst_play_bin_send_event (GstElement * element, GstEvent * event)
{
gboolean res = FALSE;
return res;
}
static const GstFormat *
gst_play_bin_get_formats (GstElement * element)
{
static GstFormat formats[] = {
GST_FORMAT_TIME,
GST_FORMAT_BYTES,
GST_FORMAT_DEFAULT,
0,
};
return formats;
}
static gboolean
gst_play_bin_convert (GstElement * element,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
{
return FALSE;
}
static const GstQueryType *
gst_play_bin_get_query_types (GstElement * element)
{
static const GstQueryType query_types[] = {
GST_QUERY_TOTAL,
GST_QUERY_POSITION,
GST_QUERY_START,
GST_QUERY_SEGMENT_END,
0
};
return query_types;
}
static gboolean
gst_play_bin_query (GstElement * element, GstQueryType type,
GstFormat * format, gint64 * value)
{
gboolean res = FALSE;
return res;
}
static GstClock *
gst_play_bin_get_clock (GstElement * element)
{
GstPlayBin *play_bin;
play_bin = GST_PLAY_BIN (element);
return gst_bin_get_clock (GST_BIN (play_bin->thread));
}
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gst_play_bin_debug, "playbin", 0, "play bin");
return gst_element_register (plugin, "playbin", GST_RANK_NONE,
GST_TYPE_PLAY_BIN);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"playbin",
"player bin", plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN)

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@ -0,0 +1,51 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#include <gst/gst.h>
gint
main (gint argc, gchar * argv[])
{
GstElement *player;
GstElementStateReturn res;
gst_init (&argc, &argv);
player = gst_element_factory_make ("playbin", "player");
g_assert (player);
g_object_set (G_OBJECT (player), "uri", argv[1], NULL);
res = gst_element_set_state (player, GST_STATE_PAUSED);
if (res != GST_STATE_SUCCESS) {
g_print ("could not play\n");
return -1;
}
/* get info about the stream */
/* set effects sinks */
res = gst_element_set_state (player, GST_STATE_PLAYING);
if (res != GST_STATE_SUCCESS) {
g_print ("could not play\n");
return -1;
}
gst_main ();
return 0;
}