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- Error after configurable number of buffers

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Original commit message from CVS:
- Error after configurable number of buffers
This commit is contained in:
Wim Taymans 2003-01-17 20:41:04 +00:00
parent acf7e665f3
commit 8e19b6a4d4
2 changed files with 76 additions and 23 deletions
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86
gst/gsttypefind.c
View file

@ -22,13 +22,11 @@
#include "gst_private.h"
#include "gsttype.h"
#include "gstlog.h"
#include "gsttypefind.h"
/* #define GST_DEBUG_ENABLED */
#define DEFAULT_MAX_BUFFERS 1
GstElementDetails gst_type_find_details = {
"TypeFind",
@ -51,6 +49,7 @@ enum {
enum {
ARG_0,
ARG_CAPS,
ARG_MAX_BUFFERS,
};
@ -65,6 +64,8 @@ static void gst_type_find_get_property (GObject *object, guint prop_id,
GParamSpec *pspec);
static void gst_type_find_chain (GstPad *pad, GstBuffer *buf);
static GstElementStateReturn
gst_type_find_change_state (GstElement *element);
static GstElementClass *parent_class = NULL;
static guint gst_type_find_signals[LAST_SIGNAL] = { 0 };
@ -96,22 +97,31 @@ static void
gst_type_find_class_init (GstTypeFindClass *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_CAPS,
g_param_spec_pointer("caps", "Caps", "Found capabilities", G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CAPS,
g_param_spec_pointer ("caps", "Caps", "Found capabilities", G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MAX_BUFFERS,
g_param_spec_int ("max_buffers",
"Max Buffers",
"Maximal amount of buffers before giving en error (0 == unlimited)",
0, G_MAXINT, DEFAULT_MAX_BUFFERS, G_PARAM_READWRITE));
gst_type_find_signals[HAVE_TYPE] =
g_signal_new ("have_type", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
g_signal_new ("have_type", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstTypeFindClass, have_type), NULL, NULL,
g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
G_TYPE_POINTER);
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_type_find_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_type_find_get_property);
gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_type_find_change_state);
}
static void
@ -120,6 +130,10 @@ gst_type_find_init (GstTypeFind *typefind)
typefind->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (typefind), typefind->sinkpad);
gst_pad_set_chain_function (typefind->sinkpad, gst_type_find_chain);
typefind->num_buffer = 0;
typefind->max_buffers = DEFAULT_MAX_BUFFERS;
typefind->caps = NULL;
}
static void
@ -133,7 +147,11 @@ gst_type_find_set_property (GObject *object, guint prop_id,
typefind = GST_TYPE_FIND (object);
switch (prop_id) {
case ARG_MAX_BUFFERS:
typefind->max_buffers = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
@ -150,9 +168,13 @@ gst_type_find_get_property (GObject *object, guint prop_id,
switch (prop_id) {
case ARG_CAPS:
g_value_set_pointer(value, typefind->caps);
g_value_set_pointer (value, typefind->caps);
break;
case ARG_MAX_BUFFERS:
g_value_set_int (value, typefind->max_buffers);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
@ -161,18 +183,17 @@ static void
gst_type_find_chain (GstPad *pad, GstBuffer *buf)
{
GstTypeFind *typefind;
GList *type_list;
const GList *type_list;
GstType *type;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
typefind = GST_TYPE_FIND (GST_OBJECT_PARENT (pad));
GST_DEBUG (0,"got buffer of %d bytes in '%s'",
GST_BUFFER_SIZE (buf), GST_OBJECT_NAME (typefind));
type_list = (GList *) gst_type_get_list ();
type_list = gst_type_get_list ();
while (type_list) {
GSList *factories;
@ -197,24 +218,53 @@ gst_type_find_chain (GstPad *pad, GstBuffer *buf)
}
{
/* int oldstate = GST_STATE(typefind);*/
gst_object_ref (GST_OBJECT (typefind));
g_signal_emit (G_OBJECT (typefind), gst_type_find_signals[HAVE_TYPE], 0,
typefind->caps);
/* if (GST_STATE(typefind) != oldstate) {
GST_DEBUG(0, "state changed during signal, aborting");
gst_element_interrupt (GST_ELEMENT (typefind));
} */
gst_object_unref (GST_OBJECT (typefind));
goto end;
}
}
factories = g_slist_next (factories);
}
type_list = g_list_next (type_list);
}
typefind->num_buffer++;
end:
gst_buffer_unref (buf);
if (typefind->num_buffer >= typefind->max_buffers) {
gst_element_error (GST_ELEMENT (typefind),
"typefind could not determine type after %d buffers", typefind->num_buffer);
}
}
static GstElementStateReturn
gst_type_find_change_state (GstElement *element)
{
GstTypeFind *typefind;
GstElementStateReturn ret;
typefind = GST_TYPE_FIND (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
break;
case GST_STATE_READY_TO_PAUSED:
typefind->num_buffer = 0;
gst_caps_unref (typefind->caps);
typefind->caps = NULL;
break;
case GST_STATE_PAUSED_TO_PLAYING:
case GST_STATE_PLAYING_TO_PAUSED:
case GST_STATE_PAUSED_TO_READY:
case GST_STATE_READY_TO_NULL:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
return ret;
}

13
gst/gsttypefind.h
View file

@ -43,18 +43,21 @@ typedef struct _GstTypeFind GstTypeFind;
typedef struct _GstTypeFindClass GstTypeFindClass;
struct _GstTypeFind {
GstElement element;
GstElement element;
GstPad *sinkpad;
GstPad *sinkpad;
GstCaps *caps;
GstCaps *caps;
gint num_buffer;
gint max_buffers;
};
struct _GstTypeFindClass {
GstElementClass parent_class;
GstElementClass parent_class;
/* signals */
void (*have_type) (GstElement *element);
void (*have_type) (GstElement *element);
};
GType gst_type_find_get_type (void);