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gstreamer/plugins/elements/gstfakesrc.c
Andy Wingo b47aea64e1 changed libgst -> libgstreamer to comply with namespace issues with gnu smalltalk various other fixes 
Original commit message from CVS:
* changed libgst -> libgstreamer to comply with namespace issues with gnu smalltalk
* various other fixes
2002-02-10 17:09:53 +00:00

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22 KiB
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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstfakesrc.c:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdlib.h>
#include <string.h>
#include <gstfakesrc.h>
GstElementDetails gst_fakesrc_details = {
"Fake Source",
"Source",
"Push empty (no data) buffers around",
VERSION,
"Erik Walthinsen <omega@cse.ogi.edu>\n"
"Wim Taymans <wim.taymans@chello.be>",
"(C) 1999",
};
/* FakeSrc signals and args */
enum {
/* FILL ME */
SIGNAL_HANDOFF,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_NUM_SOURCES,
ARG_LOOP_BASED,
ARG_OUTPUT,
ARG_DATA,
ARG_SIZETYPE,
ARG_SIZEMIN,
ARG_SIZEMAX,
ARG_FILLTYPE,
ARG_PATTERN,
ARG_NUM_BUFFERS,
ARG_EOS,
ARG_SILENT,
ARG_DUMP,
ARG_PARENTSIZE,
ARG_LAST_MESSAGE,
};
GST_PADTEMPLATE_FACTORY (fakesrc_src_factory,
"src%d",
GST_PAD_SRC,
GST_PAD_REQUEST,
NULL /* no caps */
);
#define GST_TYPE_FAKESRC_OUTPUT (gst_fakesrc_output_get_type())
static GType
gst_fakesrc_output_get_type (void)
{
static GType fakesrc_output_type = 0;
static GEnumValue fakesrc_output[] = {
{ FAKESRC_FIRST_LAST_LOOP, "1", "First-Last loop"},
{ FAKESRC_LAST_FIRST_LOOP, "2", "Last-First loop"},
{ FAKESRC_PING_PONG, "3", "Ping-Pong"},
{ FAKESRC_ORDERED_RANDOM, "4", "Ordered Random"},
{ FAKESRC_RANDOM, "5", "Random"},
{ FAKESRC_PATTERN_LOOP, "6", "Patttern loop"},
{ FAKESRC_PING_PONG_PATTERN, "7", "Ping-Pong Pattern"},
{ FAKESRC_GET_ALWAYS_SUCEEDS, "8", "'_get' Always succeeds"},
{0, NULL, NULL},
};
if (!fakesrc_output_type) {
fakesrc_output_type = g_enum_register_static ("GstFakeSrcOutput", fakesrc_output);
}
return fakesrc_output_type;
}
#define GST_TYPE_FAKESRC_DATA (gst_fakesrc_data_get_type())
static GType
gst_fakesrc_data_get_type (void)
{
static GType fakesrc_data_type = 0;
static GEnumValue fakesrc_data[] = {
{ FAKESRC_DATA_ALLOCATE, "2", "Allocate data"},
{ FAKESRC_DATA_SUBBUFFER, "3", "Subbuffer data"},
{0, NULL, NULL},
};
if (!fakesrc_data_type) {
fakesrc_data_type = g_enum_register_static ("GstFakeSrcData", fakesrc_data);
}
return fakesrc_data_type;
}
#define GST_TYPE_FAKESRC_SIZETYPE (gst_fakesrc_sizetype_get_type())
static GType
gst_fakesrc_sizetype_get_type (void)
{
static GType fakesrc_sizetype_type = 0;
static GEnumValue fakesrc_sizetype[] = {
{ FAKESRC_SIZETYPE_NULL, "1", "Send empty buffers"},
{ FAKESRC_SIZETYPE_FIXED, "2", "Fixed size buffers (sizemax sized)"},
{ FAKESRC_SIZETYPE_RANDOM, "3", "Random sized buffers (sizemin <= size <= sizemax)"},
{0, NULL, NULL},
};
if (!fakesrc_sizetype_type) {
fakesrc_sizetype_type = g_enum_register_static ("GstFakeSrcSizeType", fakesrc_sizetype);
}
return fakesrc_sizetype_type;
}
#define GST_TYPE_FAKESRC_FILLTYPE (gst_fakesrc_filltype_get_type())
static GType
gst_fakesrc_filltype_get_type (void)
{
static GType fakesrc_filltype_type = 0;
static GEnumValue fakesrc_filltype[] = {
{ FAKESRC_FILLTYPE_NOTHING, "1", "Leave data as malloced"},
{ FAKESRC_FILLTYPE_NULL, "2", "Fill buffers with zeros"},
{ FAKESRC_FILLTYPE_RANDOM, "3", "Fill buffers with random crap"},
{ FAKESRC_FILLTYPE_PATTERN, "4", "Fill buffers with pattern 0x00 -> 0xff"},
{ FAKESRC_FILLTYPE_PATTERN_CONT, "5", "Fill buffers with pattern 0x00 -> 0xff that spans buffers"},
{0, NULL, NULL},
};
if (!fakesrc_filltype_type) {
fakesrc_filltype_type = g_enum_register_static ("GstFakeSrcFillType", fakesrc_filltype);
}
return fakesrc_filltype_type;
}
static void gst_fakesrc_class_init (GstFakeSrcClass *klass);
static void gst_fakesrc_init (GstFakeSrc *fakesrc);
static GstPad* gst_fakesrc_request_new_pad (GstElement *element, GstPadTemplate *templ);
static void gst_fakesrc_update_functions (GstFakeSrc *src);
static void gst_fakesrc_set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec);
static void gst_fakesrc_get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec);
static GstElementStateReturn gst_fakesrc_change_state (GstElement *element);
static GstBuffer* gst_fakesrc_get (GstPad *pad);
static void gst_fakesrc_loop (GstElement *element);
static GstElementClass *parent_class = NULL;
static guint gst_fakesrc_signals[LAST_SIGNAL] = { 0 };
GType
gst_fakesrc_get_type (void)
{
static GType fakesrc_type = 0;
if (!fakesrc_type) {
static const GTypeInfo fakesrc_info = {
sizeof(GstFakeSrcClass),
NULL,
NULL,
(GClassInitFunc)gst_fakesrc_class_init,
NULL,
NULL,
sizeof(GstFakeSrc),
0,
(GInstanceInitFunc)gst_fakesrc_init,
};
fakesrc_type = g_type_register_static (GST_TYPE_ELEMENT, "GstFakeSrc", &fakesrc_info, 0);
}
return fakesrc_type;
}
static void
gst_fakesrc_class_init (GstFakeSrcClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_NUM_SOURCES,
g_param_spec_int ("num_sources", "num_sources", "num_sources",
1, G_MAXINT, 1, G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_LOOP_BASED,
g_param_spec_boolean("loop_based","loop_based","loop_based",
FALSE, G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_OUTPUT,
g_param_spec_enum("output","output","output",
GST_TYPE_FAKESRC_OUTPUT,FAKESRC_FIRST_LAST_LOOP,G_PARAM_READWRITE)); /* CHECKME! */
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DATA,
g_param_spec_enum ("data", "data", "data",
GST_TYPE_FAKESRC_DATA, FAKESRC_DATA_ALLOCATE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SIZETYPE,
g_param_spec_enum ("sizetype", "sizetype", "sizetype",
GST_TYPE_FAKESRC_SIZETYPE, FAKESRC_SIZETYPE_NULL, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SIZEMIN,
g_param_spec_int ("sizemin","sizemin","sizemin",
0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SIZEMAX,
g_param_spec_int ("sizemax","sizemax","sizemax",
0, G_MAXINT, 4096, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PARENTSIZE,
g_param_spec_int ("parentsize","parentsize","parentsize",
0, G_MAXINT, 4096 * 10, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FILLTYPE,
g_param_spec_enum ("filltype", "filltype", "filltype",
GST_TYPE_FAKESRC_FILLTYPE, FAKESRC_FILLTYPE_NULL, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PATTERN,
g_param_spec_string("pattern","pattern","pattern",
NULL, G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NUM_BUFFERS,
g_param_spec_int("num_buffers","num_buffers","num_buffers",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_EOS,
g_param_spec_boolean("eos","eos","eos",
TRUE,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LAST_MESSAGE,
g_param_spec_string ("last_message", "last_message", "last_message",
NULL, G_PARAM_READABLE));
gst_element_install_std_props (
GST_ELEMENT_CLASS (klass),
"silent", ARG_SILENT, G_PARAM_READWRITE,
"dump", ARG_DUMP, G_PARAM_READWRITE,
NULL);
gst_fakesrc_signals[SIGNAL_HANDOFF] =
g_signal_new ("handoff", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstFakeSrcClass, handoff), NULL, NULL,
g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
G_TYPE_POINTER);
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_fakesrc_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_fakesrc_get_property);
gstelement_class->request_new_pad = GST_DEBUG_FUNCPTR (gst_fakesrc_request_new_pad);
gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_fakesrc_change_state);
}
static void
gst_fakesrc_init (GstFakeSrc *fakesrc)
{
GstPad *pad;
/* create our first output pad */
pad = gst_pad_new ("src", GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (fakesrc), pad);
fakesrc->loop_based = FALSE;
gst_fakesrc_update_functions (fakesrc);
fakesrc->output = FAKESRC_FIRST_LAST_LOOP;
fakesrc->num_buffers = -1;
fakesrc->rt_num_buffers = -1;
fakesrc->buffer_count = 0;
fakesrc->silent = FALSE;
fakesrc->dump = FALSE;
fakesrc->pattern_byte = 0x00;
fakesrc->need_flush = FALSE;
fakesrc->data = FAKESRC_DATA_ALLOCATE;
fakesrc->sizetype = FAKESRC_SIZETYPE_NULL;
fakesrc->filltype = FAKESRC_FILLTYPE_NOTHING;
fakesrc->sizemin = 0;
fakesrc->sizemax = 4096;
fakesrc->parent = NULL;
fakesrc->parentsize = 4096 * 10;
fakesrc->last_message = NULL;
}
static GstPad*
gst_fakesrc_request_new_pad (GstElement *element, GstPadTemplate *templ)
{
gchar *name;
GstPad *srcpad;
GstFakeSrc *fakesrc;
g_return_val_if_fail (GST_IS_FAKESRC (element), NULL);
if (templ->direction != GST_PAD_SRC) {
g_warning ("gstfakesrc: request new pad that is not a SRC pad\n");
return NULL;
}
fakesrc = GST_FAKESRC (element);
name = g_strdup_printf ("src%d", GST_ELEMENT (fakesrc)->numsrcpads);
srcpad = gst_pad_new_from_template (templ, name);
gst_element_add_pad (GST_ELEMENT (fakesrc), srcpad);
g_free (name);
return srcpad;
}
static gboolean
gst_fakesrc_event_handler (GstPad *pad, GstEvent *event)
{
GstFakeSrc *src;
src = GST_FAKESRC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
src->buffer_count = GST_EVENT_SEEK_OFFSET (event);
if (!GST_EVENT_SEEK_FLUSH (event)) {
gst_event_free (event);
break;
}
/* else we do a flush too */
case GST_EVENT_FLUSH:
src->need_flush = TRUE;
break;
default:
break;
}
return TRUE;
}
static void
gst_fakesrc_update_functions (GstFakeSrc *src)
{
GList *pads;
if (src->loop_based) {
gst_element_set_loop_function (GST_ELEMENT (src), GST_DEBUG_FUNCPTR (gst_fakesrc_loop));
}
else {
gst_element_set_loop_function (GST_ELEMENT (src), NULL);
}
pads = GST_ELEMENT (src)->pads;
while (pads) {
GstPad *pad = GST_PAD (pads->data);
if (src->loop_based) {
gst_pad_set_get_function (pad, NULL);
}
else {
gst_pad_set_get_function (pad, GST_DEBUG_FUNCPTR (gst_fakesrc_get));
}
gst_pad_set_event_function (pad, gst_fakesrc_event_handler);
pads = g_list_next (pads);
}
}
static void
gst_fakesrc_alloc_parent (GstFakeSrc *src)
{
GstBuffer *buf;
buf = gst_buffer_new ();
GST_BUFFER_DATA (buf) = g_malloc (src->parentsize);
GST_BUFFER_SIZE (buf) = src->parentsize;
src->parent = buf;
src->parentoffset = 0;
}
static void
gst_fakesrc_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstFakeSrc *src;
/* it's not null if we got it, but it might not be ours */
src = GST_FAKESRC (object);
switch (prop_id) {
case ARG_LOOP_BASED:
src->loop_based = g_value_get_boolean (value);
gst_fakesrc_update_functions (src);
break;
case ARG_OUTPUT:
g_warning ("not yet implemented");
break;
case ARG_DATA:
src->data = g_value_get_enum (value);
switch (src->data) {
case FAKESRC_DATA_ALLOCATE:
if (src->parent) {
gst_buffer_unref (src->parent);
src->parent = NULL;
}
break;
case FAKESRC_DATA_SUBBUFFER:
if (!src->parent)
gst_fakesrc_alloc_parent (src);
default:
break;
}
break;
case ARG_SIZETYPE:
src->sizetype = g_value_get_enum (value);
break;
case ARG_SIZEMIN:
src->sizemin = g_value_get_int (value);
break;
case ARG_SIZEMAX:
src->sizemax = g_value_get_int (value);
break;
case ARG_PARENTSIZE:
src->parentsize = g_value_get_int (value);
break;
case ARG_FILLTYPE:
src->filltype = g_value_get_enum (value);
break;
case ARG_PATTERN:
break;
case ARG_NUM_BUFFERS:
src->num_buffers = g_value_get_int (value);
break;
case ARG_EOS:
src->eos = g_value_get_boolean (value);
GST_INFO (0, "will EOS on next buffer");
break;
case ARG_SILENT:
src->silent = g_value_get_boolean (value);
break;
case ARG_DUMP:
src->dump = g_value_get_boolean (value);
break;
default:
break;
}
}
static void
gst_fakesrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
GstFakeSrc *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_FAKESRC (object));
src = GST_FAKESRC (object);
switch (prop_id) {
case ARG_NUM_SOURCES:
g_value_set_int (value, GST_ELEMENT (src)->numsrcpads);
break;
case ARG_LOOP_BASED:
g_value_set_boolean (value, src->loop_based);
break;
case ARG_OUTPUT:
g_value_set_enum (value, src->output);
break;
case ARG_DATA:
g_value_set_enum (value, src->data);
break;
case ARG_SIZETYPE:
g_value_set_enum (value, src->sizetype);
break;
case ARG_SIZEMIN:
g_value_set_int (value, src->sizemin);
break;
case ARG_SIZEMAX:
g_value_set_int (value, src->sizemax);
break;
case ARG_PARENTSIZE:
g_value_set_int (value, src->parentsize);
break;
case ARG_FILLTYPE:
g_value_set_enum (value, src->filltype);
break;
case ARG_PATTERN:
g_value_set_string (value, src->pattern);
break;
case ARG_NUM_BUFFERS:
g_value_set_int (value, src->num_buffers);
break;
case ARG_EOS:
g_value_set_boolean (value, src->eos);
break;
case ARG_SILENT:
g_value_set_boolean (value, src->silent);
break;
case ARG_DUMP:
g_value_set_boolean (value, src->dump);
break;
case ARG_LAST_MESSAGE:
g_value_set_string (value, src->last_message);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_fakesrc_prepare_buffer (GstFakeSrc *src, GstBuffer *buf)
{
if (GST_BUFFER_SIZE (buf) == 0)
return;
switch (src->filltype) {
case FAKESRC_FILLTYPE_NULL:
memset (GST_BUFFER_DATA (buf), 0, GST_BUFFER_SIZE (buf));
break;
case FAKESRC_FILLTYPE_RANDOM:
{
gint i;
guint8 *ptr = GST_BUFFER_DATA (buf);
for (i = GST_BUFFER_SIZE (buf); i; i--) {
*ptr++ = (gint8)((255.0)*rand()/(RAND_MAX));
}
break;
}
case FAKESRC_FILLTYPE_PATTERN:
src->pattern_byte = 0x00;
case FAKESRC_FILLTYPE_PATTERN_CONT:
{
gint i;
guint8 *ptr = GST_BUFFER_DATA (buf);
for (i = GST_BUFFER_SIZE (buf); i; i--) {
*ptr++ = src->pattern_byte++;
}
break;
}
case FAKESRC_FILLTYPE_NOTHING:
default:
break;
}
}
static GstBuffer*
gst_fakesrc_alloc_buffer (GstFakeSrc *src, guint size)
{
GstBuffer *buf;
buf = gst_buffer_new ();
GST_BUFFER_SIZE(buf) = size;
if (size != 0) {
switch (src->filltype) {
case FAKESRC_FILLTYPE_NOTHING:
GST_BUFFER_DATA(buf) = g_malloc (size);
break;
case FAKESRC_FILLTYPE_NULL:
GST_BUFFER_DATA(buf) = g_malloc0 (size);
break;
case FAKESRC_FILLTYPE_RANDOM:
case FAKESRC_FILLTYPE_PATTERN:
case FAKESRC_FILLTYPE_PATTERN_CONT:
default:
GST_BUFFER_DATA(buf) = g_malloc (size);
gst_fakesrc_prepare_buffer (src, buf);
break;
}
}
return buf;
}
static guint
gst_fakesrc_get_size (GstFakeSrc *src)
{
guint size;
switch (src->sizetype) {
case FAKESRC_SIZETYPE_FIXED:
size = src->sizemax;
break;
case FAKESRC_SIZETYPE_RANDOM:
size = src->sizemin + (guint8)(((gfloat)src->sizemax)*rand()/(RAND_MAX + (gfloat)src->sizemin));
break;
case FAKESRC_SIZETYPE_NULL:
default:
size = 0;
break;
}
return size;
}
static GstBuffer *
gst_fakesrc_create_buffer (GstFakeSrc *src)
{
GstBuffer *buf;
guint size;
gboolean dump = src->dump;
size = gst_fakesrc_get_size (src);
if (size == 0)
return gst_buffer_new();
switch (src->data) {
case FAKESRC_DATA_ALLOCATE:
buf = gst_fakesrc_alloc_buffer (src, size);
break;
case FAKESRC_DATA_SUBBUFFER:
/* see if we have a parent to subbuffer */
if (!src->parent) {
gst_fakesrc_alloc_parent (src);
g_assert (src->parent);
}
/* see if it's large enough */
if ((GST_BUFFER_SIZE (src->parent) - src->parentoffset) >= size) {
buf = gst_buffer_create_sub (src->parent, src->parentoffset, size);
src->parentoffset += size;
}
else {
/* the parent is useless now */
gst_buffer_unref (src->parent);
src->parent = NULL;
/* try again (this will allocate a new parent) */
return gst_fakesrc_create_buffer (src);
}
gst_fakesrc_prepare_buffer (src, buf);
break;
default:
g_warning ("fakesrc: dunno how to allocate buffers !");
buf = gst_buffer_new();
break;
}
if (dump) {
gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
}
return buf;
}
static GstBuffer *
gst_fakesrc_get(GstPad *pad)
{
GstFakeSrc *src;
GstBuffer *buf;
g_return_val_if_fail (pad != NULL, NULL);
src = GST_FAKESRC (gst_pad_get_parent (pad));
g_return_val_if_fail (GST_IS_FAKESRC (src), NULL);
if (src->need_flush) {
src->need_flush = FALSE;
return GST_BUFFER(gst_event_new (GST_EVENT_FLUSH));
}
if (src->rt_num_buffers == 0) {
gst_element_set_eos (GST_ELEMENT (src));
return GST_BUFFER(gst_event_new (GST_EVENT_EOS));
}
else {
if (src->rt_num_buffers > 0)
src->rt_num_buffers--;
}
if (src->eos) {
GST_INFO (0, "fakesrc is setting eos on pad");
return GST_BUFFER(gst_event_new (GST_EVENT_EOS));
}
buf = gst_fakesrc_create_buffer (src);
GST_BUFFER_TIMESTAMP (buf) = src->buffer_count++;
if (!src->silent) {
if (src->last_message)
g_free (src->last_message);
src->last_message = g_strdup_printf ("get ******* (%s:%s)> (%d bytes, %llu)",
GST_DEBUG_PAD_NAME (pad), GST_BUFFER_SIZE (buf), GST_BUFFER_TIMESTAMP (buf));
g_object_notify (G_OBJECT (src), "last_message");
}
GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, src, "pre handoff emit\n");
g_signal_emit (G_OBJECT (src), gst_fakesrc_signals[SIGNAL_HANDOFF], 0,
buf, pad);
GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, src, "post handoff emit\n");
return buf;
}
/**
* gst_fakesrc_loop:
* @element: the faksesrc to loop
*
* generate an empty buffer and push it to the next element.
*/
static void
gst_fakesrc_loop(GstElement *element)
{
GstFakeSrc *src;
GList *pads;
g_return_if_fail(element != NULL);
g_return_if_fail(GST_IS_FAKESRC(element));
src = GST_FAKESRC (element);
pads = gst_element_get_pad_list (element);
while (pads) {
GstPad *pad = GST_PAD (pads->data);
GstBuffer *buf;
if (src->rt_num_buffers == 0) {
src->eos = TRUE;
}
else {
if (src->rt_num_buffers > 0)
src->rt_num_buffers--;
}
if (src->eos) {
gst_pad_push(pad, GST_BUFFER(gst_event_new (GST_EVENT_EOS)));
return;
}
buf = gst_fakesrc_create_buffer (src);
GST_BUFFER_TIMESTAMP (buf) = src->buffer_count++;
if (!src->silent) {
if (src->last_message)
g_free (src->last_message);
src->last_message = g_strdup_printf ("fakesrc: loop ******* (%s:%s) > (%d bytes, %llu)",
GST_DEBUG_PAD_NAME (pad), GST_BUFFER_SIZE (buf), GST_BUFFER_TIMESTAMP (buf));
g_object_notify (G_OBJECT (src), "last_message");
}
g_signal_emit (G_OBJECT (src), gst_fakesrc_signals[SIGNAL_HANDOFF], 0,
buf, pad);
gst_pad_push (pad, buf);
pads = g_list_next (pads);
}
}
static GstElementStateReturn
gst_fakesrc_change_state (GstElement *element)
{
GstFakeSrc *fakesrc;
g_return_val_if_fail (GST_IS_FAKESRC (element), GST_STATE_FAILURE);
fakesrc = GST_FAKESRC (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_PAUSED_TO_READY:
case GST_STATE_NULL_TO_READY:
fakesrc->buffer_count = 0;
fakesrc->pattern_byte = 0x00;
fakesrc->need_flush = FALSE;
fakesrc->eos = FALSE;
fakesrc->rt_num_buffers = fakesrc->num_buffers;
if (fakesrc->parent) {
gst_buffer_unref (fakesrc->parent);
fakesrc->parent = NULL;
}
break;
case GST_STATE_READY_TO_PAUSED:
case GST_STATE_PAUSED_TO_PLAYING:
case GST_STATE_PLAYING_TO_PAUSED:
case GST_STATE_READY_TO_NULL:
break;
default:
g_assert_not_reached ();
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
gboolean
gst_fakesrc_factory_init (GstElementFactory *factory)
{
gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (fakesrc_src_factory));
return TRUE;
}
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