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Brought standard elements in line with new state management system.

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Original commit message from CVS:
Brought standard elements in line with new state management system.
This commit is contained in:
Erik Walthinsen 2000-07-21 03:57:51 +00:00
parent b6d31c1c72
commit 6340b23cc0
24 changed files with 266 additions and 300 deletions
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38
gst/elements/gstasyncdisksrc.c
View file

@ -59,8 +59,7 @@ static void gst_asyncdisksrc_get_arg(GtkObject *object,GtkArg *arg,guint id);
static void gst_asyncdisksrc_push(GstSrc *src);
static void gst_asyncdisksrc_push_region(GstSrc *src,gulong offset,
gulong size);
static gboolean gst_asyncdisksrc_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_asyncdisksrc_change_state(GstElement *element);
static GstSrcClass *parent_class = NULL;
@ -142,17 +141,16 @@ static void gst_asyncdisksrc_set_arg(GtkObject *object,GtkArg *arg,guint id) {
switch(id) {
case ARG_LOCATION:
/* the element must be stopped in order to do this */
g_return_if_fail(!GST_FLAG_IS_SET(src,GST_ASYNCDISKSRC_OPEN));
g_return_if_fail(GST_STATE(src) < GST_STATE_PLAYING);
if (src->filename) g_free(src->filename);
/* clear the filename if we get a NULL (is that possible?) */
if (GTK_VALUE_STRING(*arg) == NULL) {
gst_element_set_state(GST_ELEMENT(object),GST_STATE_NULL);
src->filename = NULL;
gst_element_set_state(GST_ELEMENT(object),~GST_STATE_COMPLETE);
/* otherwise set the new filename */
} else {
src->filename = g_strdup(GTK_VALUE_STRING(*arg));
gst_element_set_state(GST_ELEMENT(object),GST_STATE_COMPLETE);
}
break;
case ARG_BYTESPERREAD:
@ -251,7 +249,7 @@ void gst_asyncdisksrc_push_region(GstSrc *src,gulong offset,gulong size) {
g_return_if_fail(src != NULL);
g_return_if_fail(GST_IS_ASYNCDISKSRC(src));
g_return_if_fail(GST_FLAG_IS_SET(src,GST_STATE_RUNNING));
g_return_if_fail(GST_FLAG_IS_SET(src,GST_STATE_READY));
asyncdisksrc = GST_ASYNCDISKSRC(src);
/* deal with EOF state */
@ -282,7 +280,7 @@ void gst_asyncdisksrc_push_region(GstSrc *src,gulong offset,gulong size) {
}
/* open the file and mmap it, necessary to go to RUNNING state */
/* open the file and mmap it, necessary to go to READY state */
static gboolean gst_asyncdisksrc_open_file(GstAsyncDiskSrc *src) {
g_return_val_if_fail(!GST_FLAG_IS_SET(src,GST_ASYNCDISKSRC_OPEN), FALSE);
@ -329,23 +327,21 @@ static void gst_asyncdisksrc_close_file(GstAsyncDiskSrc *src) {
}
static gboolean gst_asyncdisksrc_change_state(GstElement *element,
GstElementState state) {
g_return_val_if_fail(GST_IS_ASYNCDISKSRC(element), FALSE);
static GstElementStateReturn gst_asyncdisksrc_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_ASYNCDISKSRC(element),GST_STATE_FAILURE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_asyncdisksrc_open_file(GST_ASYNCDISKSRC(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_ASYNCDISKSRC_OPEN))
gst_asyncdisksrc_close_file(GST_ASYNCDISKSRC(element));
break;
default:
break;
} else {
if (!GST_FLAG_IS_SET(element,GST_ASYNCDISKSRC_OPEN)) {
if (!gst_asyncdisksrc_open_file(GST_ASYNCDISKSRC(element)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return TRUE;
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return GST_STATE_SUCCESS;
}

54
gst/elements/gstaudiosink.c
View file

@ -41,11 +41,7 @@ GstElementDetails gst_audiosink_details = {
static gboolean gst_audiosink_open_audio(GstAudioSink *sink);
static void gst_audiosink_close_audio(GstAudioSink *sink);
static gboolean gst_audiosink_start(GstElement *element,
GstElementState state);
static gboolean gst_audiosink_stop(GstElement *element);
static gboolean gst_audiosink_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_audiosink_change_state(GstElement *element);
static void gst_audiosink_set_arg(GtkObject *object,GtkArg *arg,guint id);
static void gst_audiosink_get_arg(GtkObject *object,GtkArg *arg,guint id);
@ -131,8 +127,6 @@ gst_audiosink_class_init(GstAudioSinkClass *klass) {
gtk_object_class_add_signals(gtkobject_class,gst_audiosink_signals,
LAST_SIGNAL);
gstelement_class->start = gst_audiosink_start;
gstelement_class->stop = gst_audiosink_stop;
gstelement_class->change_state = gst_audiosink_change_state;
}
@ -177,7 +171,6 @@ void gst_audiosink_sync_parms(GstAudioSink *audiosink) {
GstElement *gst_audiosink_new(gchar *name) {
GstElement *audiosink = GST_ELEMENT(gtk_type_new(GST_TYPE_AUDIOSINK));
gst_element_set_name(GST_ELEMENT(audiosink),name);
gst_element_set_state(GST_ELEMENT(audiosink),GST_STATE_COMPLETE);
return audiosink;
}
@ -335,42 +328,23 @@ static void gst_audiosink_close_audio(GstAudioSink *sink) {
g_print("audiosink: closed sound device\n");
}
static gboolean gst_audiosink_start(GstElement *element,
GstElementState state) {
static GstElementStateReturn gst_audiosink_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_AUDIOSINK(element), FALSE);
if (gst_audiosink_open_audio(GST_AUDIOSINK(element)) == TRUE) {
gst_element_set_state(element,GST_STATE_RUNNING | state);
return TRUE;
}
return FALSE;
}
static gboolean gst_audiosink_stop(GstElement *element) {
g_return_val_if_fail(GST_IS_AUDIOSINK(element), FALSE);
gst_audiosink_close_audio(GST_AUDIOSINK(element));
gst_element_set_state(element,~GST_STATE_RUNNING);
return TRUE;
}
static gboolean gst_audiosink_change_state(GstElement *element,
GstElementState state) {
g_return_val_if_fail(GST_IS_AUDIOSINK(element), FALSE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_audiosink_open_audio(GST_AUDIOSINK(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_AUDIOSINK_OPEN))
gst_audiosink_close_audio(GST_AUDIOSINK(element));
break;
default:
break;
}
/* otherwise (READY or higher) we need to open the sound card */
} else {
if (!GST_FLAG_IS_SET(element,GST_AUDIOSINK_OPEN)) {
if (!gst_audiosink_open_audio(GST_AUDIOSINK(element)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return TRUE;
}

5
gst/elements/gstaudiosink.h
View file

@ -46,6 +46,11 @@ GstElementDetails gst_audiosink_details;
#define GST_IS_AUDIOSINK_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOSINK))
// NOTE: per-element flags start with 16 for now
typedef enum {
GST_AUDIOSINK_OPEN = (1 << 16),
} GstAudioSinkFlags;
typedef struct _GstAudioSink GstAudioSink;
typedef struct _GstAudioSinkClass GstAudioSinkClass;

34
gst/elements/gstaudiosrc.c
View file

@ -57,8 +57,8 @@ static void gst_audiosrc_class_init(GstAudioSrcClass *klass);
static void gst_audiosrc_init(GstAudioSrc *audiosrc);
static void gst_audiosrc_set_arg(GtkObject *object,GtkArg *arg,guint id);
static void gst_audiosrc_get_arg(GtkObject *object,GtkArg *arg,guint id);
static gboolean gst_audiosrc_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_audiosrc_change_state(GstElement *element);
static void gst_audiosrc_close_audio(GstAudioSrc *src);
static gboolean gst_audiosrc_open_audio(GstAudioSrc *src);
void gst_audiosrc_sync_parms(GstAudioSrc *audiosrc);
@ -224,29 +224,28 @@ static void gst_audiosrc_get_arg(GtkObject *object,GtkArg *arg,guint id) {
}
}
static gboolean gst_audiosrc_change_state(GstElement *element,
GstElementState state) {
static GstElementStateReturn gst_audiosrc_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_AUDIOSRC(element), FALSE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_audiosrc_open_audio(GST_AUDIOSRC(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_AUDIOSRC_OPEN))
gst_audiosrc_close_audio(GST_AUDIOSRC(element));
break;
default:
break;
/* otherwise (READY or higher) we need to open the sound card */
} else {
if (!GST_FLAG_IS_SET(element,GST_AUDIOSRC_OPEN)) {
if (!gst_audiosrc_open_audio(GST_AUDIOSRC(element)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return TRUE;
}
static gboolean gst_audiosrc_open_audio(GstAudioSrc *src) {
g_return_val_if_fail(src->fd == -1, FALSE);
g_return_val_if_fail(!GST_FLAG_IS_SET(src,GST_AUDIOSRC_OPEN), FALSE);
/* first try to open the sound card */
src->fd = open("/dev/dsp",O_RDONLY);
@ -260,6 +259,7 @@ static gboolean gst_audiosrc_open_audio(GstAudioSrc *src) {
/* set card state */
gst_audiosrc_sync_parms(src);
DEBUG("opened audio\n");
GST_FLAG_SET(src,GST_AUDIOSRC_OPEN);
return TRUE;
}
@ -267,10 +267,12 @@ static gboolean gst_audiosrc_open_audio(GstAudioSrc *src) {
}
static void gst_audiosrc_close_audio(GstAudioSrc *src) {
g_return_if_fail(src->fd >= 0);
g_return_if_fail(GST_FLAG_IS_SET(src,GST_AUDIOSRC_OPEN));
close(src->fd);
src->fd = -1;
GST_FLAG_UNSET(src,GST_AUDIOSRC_OPEN);
}
void gst_audiosrc_sync_parms(GstAudioSrc *audiosrc) {

5
gst/elements/gstaudiosrc.h
View file

@ -46,6 +46,11 @@ GstElementDetails gst_audiosrc_details;
#define GST_IS_AUDIOSRC_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOSRC)))
// NOTE: per-element flags start with 16 for now
typedef enum {
GST_AUDIOSRC_OPEN = (1 < 16),
} GstAudioSrcFlags;
typedef struct _GstAudioSrc GstAudioSrc;
typedef struct _GstAudioSrcClass GstAudioSrcClass;

50
gst/elements/gstdisksrc.c
View file

@ -57,8 +57,7 @@ static void gst_disksrc_get_arg(GtkObject *object,GtkArg *arg,guint id);
static void gst_disksrc_push(GstSrc *src);
//static void gst_disksrc_push_region(GstSrc *src,gulong offset,gulong size);
static gboolean gst_disksrc_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_disksrc_change_state(GstElement *element);
static GstSrcClass *parent_class = NULL;
@ -138,18 +137,17 @@ static void gst_disksrc_set_arg(GtkObject *object,GtkArg *arg,guint id) {
switch(id) {
case ARG_LOCATION:
/* the element must be stopped in order to do this */
// g_return_if_fail(!GST_FLAG_IS_SET(src,GST_STATE_RUNNING));
/* the element must not be playing in order to do this */
g_return_if_fail(GST_STATE(src) < GST_STATE_PLAYING);
if (src->filename) g_free(src->filename);
/* clear the filename if we get a NULL (is that possible?) */
if (GTK_VALUE_STRING(*arg) == NULL) {
gst_element_set_state(GST_ELEMENT(object),GST_STATE_NULL);
src->filename = NULL;
gst_element_set_state(GST_ELEMENT(object),~GST_STATE_COMPLETE);
/* otherwise set the new filename */
} else {
src->filename = g_strdup(GTK_VALUE_STRING(*arg));
gst_element_set_state(GST_ELEMENT(object),GST_STATE_COMPLETE);
src->filename = g_strdup(GTK_VALUE_STRING(*arg));
}
break;
case ARG_BYTESPERREAD:
@ -199,6 +197,7 @@ void gst_disksrc_push(GstSrc *src) {
g_return_if_fail(src != NULL);
g_return_if_fail(GST_IS_DISKSRC(src));
g_return_if_fail(GST_FLAG_IS_SET(src,GST_DISKSRC_OPEN));
g_return_if_fail(GST_STATE(src) >= GST_STATE_READY);
disksrc = GST_DISKSRC(src);
/* create the buffer */
@ -237,7 +236,7 @@ void gst_disksrc_push(GstSrc *src) {
GST_BUFFER_SIZE(buf) = readbytes;
disksrc->curoffset += readbytes;
DEBUG("pushing with offset %lu\n", GST_BUFFER_OFFSET(buf));
DEBUG("pushing with offset %d\n", GST_BUFFER_OFFSET(buf));
/* we're done, push the buffer off now */
gst_pad_push(disksrc->srcpad,buf);
}
@ -246,7 +245,9 @@ void gst_disksrc_push(GstSrc *src) {
/* open the file, necessary to go to RUNNING state */
static gboolean gst_disksrc_open_file(GstDiskSrc *src) {
struct stat f_stat;
g_return_val_if_fail(!GST_FLAG_IS_SET(src,GST_DISKSRC_OPEN), FALSE);
g_return_val_if_fail(src->filename != NULL, FALSE);
/* open the file */
src->fd = open(src->filename,O_RDONLY);
@ -282,23 +283,24 @@ static void gst_disksrc_close_file(GstDiskSrc *src) {
GST_FLAG_UNSET(src,GST_DISKSRC_OPEN);
}
static gboolean gst_disksrc_change_state(GstElement *element,
GstElementState state) {
g_return_val_if_fail(GST_IS_DISKSRC(element), FALSE);
static GstElementStateReturn gst_disksrc_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_DISKSRC(element),GST_STATE_FAILURE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_disksrc_open_file(GST_DISKSRC(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_DISKSRC_OPEN))
gst_disksrc_close_file(GST_DISKSRC(element));
break;
default:
break;
}
/* otherwise (READY or higher) we need to open the file */
} else {
if (!GST_FLAG_IS_SET(element,GST_DISKSRC_OPEN)) {
if (!gst_disksrc_open_file(GST_DISKSRC(element)))
return GST_STATE_FAILURE;
}
}
/* if we haven't failed already, give the parent class a chance to ;-) */
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return TRUE;
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return GST_STATE_SUCCESS;
}

3
gst/elements/gstdisksrc.h
View file

@ -58,9 +58,8 @@ struct _GstDiskSrc {
/* pads */
GstPad *srcpad;
/* filename */
/* file state */
gchar *filename;
/* fd */
gint fd;
gulong curoffset; /* current offset in file */

7
gst/elements/gstfdsrc.c
View file

@ -129,18 +129,17 @@ static void gst_fdsrc_set_arg(GtkObject *object,GtkArg *arg,guint id) {
switch(id) {
case ARG_LOCATION:
/* the element must be stopped in order to do this */
g_return_if_fail(!GST_FLAG_IS_SET(src,GST_STATE_RUNNING));
/* the element must not be playing in order to do this */
g_return_if_fail(GST_STATE(src) < GST_STATE_PLAYING);
/* if we get a NULL, consider it to be a fd of 0 */
if (GTK_VALUE_STRING(*arg) == NULL) {
gst_element_set_state(GST_ELEMENT(object),GST_STATE_NULL);
src->fd = 0;
gst_element_set_state(GST_ELEMENT(object),~GST_STATE_COMPLETE);
/* otherwise set the new filename */
} else {
if (sscanf(GTK_VALUE_STRING(*arg),"%d",&fd))
src->fd = fd;
gst_element_set_state(GST_ELEMENT(object),GST_STATE_COMPLETE);
}
break;
case ARG_BYTESPERREAD:

44
gst/elements/gsthttpsrc.c
View file

@ -39,8 +39,7 @@ GstElementDetails gst_httpsrc_details = {
static void gst_httpsrc_push(GstSrc *src);
static gboolean gst_httpsrc_open_url(GstHttpSrc *src);
static void gst_httpsrc_close_url(GstHttpSrc *src);
static gboolean gst_httpsrc_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_httpsrc_change_state(GstElement *element);
/* HttpSrc signals and args */
@ -155,8 +154,7 @@ static void gst_httpsrc_push(GstSrc *src) {
static gboolean gst_httpsrc_open_url(GstHttpSrc *httpsrc) {
gint status;
g_return_val_if_fail(httpsrc != NULL, FALSE);
g_return_val_if_fail(GST_IS_HTTPSRC(httpsrc), FALSE);
g_return_val_if_fail(!GST_FLAG_IS_SET(httpsrc,GST_HTTPSRC_OPEN), FALSE);
g_return_val_if_fail(httpsrc->url != NULL, FALSE);
httpsrc->request = ghttp_request_new();
@ -175,15 +173,20 @@ static gboolean gst_httpsrc_open_url(GstHttpSrc *httpsrc) {
/* get the fd so we can read data ourselves */
httpsrc->fd = ghttp_get_socket(httpsrc->request);
GST_FLAG_SET(httpsrc,GST_HTTPSRC_OPEN);
return TRUE;
}
/* unmap and close the file */
static void gst_httpsrc_close_url(GstHttpSrc *src) {
g_return_if_fail(GST_FLAG_IS_SET(src,GST_HTTPSRC_OPEN));
g_return_if_fail(src->fd > 0);
close(src->fd);
src->fd = 0;
GST_FLAG_UNSET(src,GST_HTTPSRC_OPEN);
}
static void gst_httpsrc_set_arg(GtkObject *object,GtkArg *arg,guint id) {
@ -195,18 +198,17 @@ static void gst_httpsrc_set_arg(GtkObject *object,GtkArg *arg,guint id) {
switch(id) {
case ARG_LOCATION:
/* the element must be stopped in order to do this */
g_return_if_fail(!GST_FLAG_IS_SET(src,GST_STATE_RUNNING));
/* the element must not be playing in order to do this */
g_return_if_fail(GST_STATE(src) < GST_STATE_PLAYING);
if (src->url) g_free(src->url);
/* clear the url if we get a NULL (is that possible?) */
if (GTK_VALUE_STRING(*arg) == NULL) {
gst_element_set_state(GST_ELEMENT(object),GST_STATE_NULL);
src->url = NULL;
gst_element_set_state(GST_ELEMENT(object),~GST_STATE_COMPLETE);
/* otherwise set the new url */
} else {
src->url = g_strdup(GTK_VALUE_STRING(*arg));
gst_element_set_state(GST_ELEMENT(object),GST_STATE_COMPLETE);
}
break;
case ARG_BYTESPERREAD:
@ -237,24 +239,20 @@ static void gst_httpsrc_get_arg(GtkObject *object,GtkArg *arg,guint id) {
}
}
static gboolean gst_httpsrc_change_state(GstElement *element,
GstElementState state) {
g_return_val_if_fail(GST_IS_HTTPSRC(element), FALSE);
static GstElementStateReturn gst_httpsrc_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_HTTPSRC(element),GST_STATE_FAILURE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_httpsrc_open_url(GST_HTTPSRC(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_HTTPSRC_OPEN))
gst_httpsrc_close_url(GST_HTTPSRC(element));
break;
default:
break;
} else {
if (!GST_FLAG_IS_SET(element,GST_HTTPSRC_OPEN)) {
if (!gst_httpsrc_open_url(GST_HTTPSRC(element)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return TRUE;
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return GST_STATE_SUCCESS;
}

5
gst/elements/gsthttpsrc.h
View file

@ -47,6 +47,11 @@ GstElementDetails gst_httpsrc_details;
#define GST_IS_HTTPSRC_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_HTTPSRC)))
// NOTE: per-element flags start with 16 for now
typedef enum {
GST_HTTPSRC_OPEN = (1 << 16),
} GstHttpSrcFlags;
typedef struct _GstHttpSrc GstHttpSrc;
typedef struct _GstHttpSrcClass GstHttpSrcClass;

28
gst/elements/gstpipefilter.c
View file

@ -59,8 +59,7 @@ static void gst_pipefilter_get_arg(GtkObject *object,GtkArg *arg,guint id);
void gst_pipefilter_chain(GstPad *pad,GstBuffer *buf);
static gboolean gst_pipefilter_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_pipefilter_change_state(GstElement *element);
static GstFilterClass *parent_class = NULL;
//static guint gst_pipefilter_signals[LAST_SIGNAL] = { 0 };
@ -287,23 +286,22 @@ static void gst_pipefilter_close_file(GstPipefilter *src) {
GST_FLAG_UNSET(src,GST_PIPEFILTER_OPEN);
}
static gboolean gst_pipefilter_change_state(GstElement *element,
GstElementState state) {
static GstElementStateReturn gst_pipefilter_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_PIPEFILTER(element), FALSE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_pipefilter_open_file(GST_PIPEFILTER(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_PIPEFILTER_OPEN))
gst_pipefilter_close_file(GST_PIPEFILTER(element));
break;
default:
break;
}
/* otherwise (READY or higher) we need to open the file */
} else {
if (!GST_FLAG_IS_SET(element,GST_PIPEFILTER_OPEN)) {
if (!gst_disksrc_open_file(GST_PIPEFILTER(element)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return TRUE;
}

10
gst/elements/gstpipefilter.h
View file

@ -33,11 +33,6 @@ extern "C" {
GstElementDetails gst_pipefilter_details;
// NOTE: per-element flags start with 16 for now
typedef enum {
GST_PIPEFILTER_OPEN = (1 << 16),
} GstPipefilterFlags;
#define GST_TYPE_PIPEFILTER \
(gst_pipefilter_get_type())
#define GST_PIPEFILTER(obj) \
@ -49,6 +44,11 @@ typedef enum {
#define GST_IS_PIPEFILTER_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_PIPEFILTER))
// NOTE: per-element flags start with 16 for now
typedef enum {
GST_PIPEFILTER_OPEN = (1 << 16 ),
} GstPipeFilterFlags;
typedef struct _GstPipefilter GstPipefilter;
typedef struct _GstPipefilterClass GstPipefilterClass;

38
plugins/elements/gstasyncdisksrc.c
View file

@ -59,8 +59,7 @@ static void gst_asyncdisksrc_get_arg(GtkObject *object,GtkArg *arg,guint id);
static void gst_asyncdisksrc_push(GstSrc *src);
static void gst_asyncdisksrc_push_region(GstSrc *src,gulong offset,
gulong size);
static gboolean gst_asyncdisksrc_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_asyncdisksrc_change_state(GstElement *element);
static GstSrcClass *parent_class = NULL;
@ -142,17 +141,16 @@ static void gst_asyncdisksrc_set_arg(GtkObject *object,GtkArg *arg,guint id) {
switch(id) {
case ARG_LOCATION:
/* the element must be stopped in order to do this */
g_return_if_fail(!GST_FLAG_IS_SET(src,GST_ASYNCDISKSRC_OPEN));
g_return_if_fail(GST_STATE(src) < GST_STATE_PLAYING);
if (src->filename) g_free(src->filename);
/* clear the filename if we get a NULL (is that possible?) */
if (GTK_VALUE_STRING(*arg) == NULL) {
gst_element_set_state(GST_ELEMENT(object),GST_STATE_NULL);
src->filename = NULL;
gst_element_set_state(GST_ELEMENT(object),~GST_STATE_COMPLETE);
/* otherwise set the new filename */
} else {
src->filename = g_strdup(GTK_VALUE_STRING(*arg));
gst_element_set_state(GST_ELEMENT(object),GST_STATE_COMPLETE);
}
break;
case ARG_BYTESPERREAD:
@ -251,7 +249,7 @@ void gst_asyncdisksrc_push_region(GstSrc *src,gulong offset,gulong size) {
g_return_if_fail(src != NULL);
g_return_if_fail(GST_IS_ASYNCDISKSRC(src));
g_return_if_fail(GST_FLAG_IS_SET(src,GST_STATE_RUNNING));
g_return_if_fail(GST_FLAG_IS_SET(src,GST_STATE_READY));
asyncdisksrc = GST_ASYNCDISKSRC(src);
/* deal with EOF state */
@ -282,7 +280,7 @@ void gst_asyncdisksrc_push_region(GstSrc *src,gulong offset,gulong size) {
}
/* open the file and mmap it, necessary to go to RUNNING state */
/* open the file and mmap it, necessary to go to READY state */
static gboolean gst_asyncdisksrc_open_file(GstAsyncDiskSrc *src) {
g_return_val_if_fail(!GST_FLAG_IS_SET(src,GST_ASYNCDISKSRC_OPEN), FALSE);
@ -329,23 +327,21 @@ static void gst_asyncdisksrc_close_file(GstAsyncDiskSrc *src) {
}
static gboolean gst_asyncdisksrc_change_state(GstElement *element,
GstElementState state) {
g_return_val_if_fail(GST_IS_ASYNCDISKSRC(element), FALSE);
static GstElementStateReturn gst_asyncdisksrc_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_ASYNCDISKSRC(element),GST_STATE_FAILURE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_asyncdisksrc_open_file(GST_ASYNCDISKSRC(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_ASYNCDISKSRC_OPEN))
gst_asyncdisksrc_close_file(GST_ASYNCDISKSRC(element));
break;
default:
break;
} else {
if (!GST_FLAG_IS_SET(element,GST_ASYNCDISKSRC_OPEN)) {
if (!gst_asyncdisksrc_open_file(GST_ASYNCDISKSRC(element)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return TRUE;
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return GST_STATE_SUCCESS;
}

54
plugins/elements/gstaudiosink.c
View file

@ -41,11 +41,7 @@ GstElementDetails gst_audiosink_details = {
static gboolean gst_audiosink_open_audio(GstAudioSink *sink);
static void gst_audiosink_close_audio(GstAudioSink *sink);
static gboolean gst_audiosink_start(GstElement *element,
GstElementState state);
static gboolean gst_audiosink_stop(GstElement *element);
static gboolean gst_audiosink_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_audiosink_change_state(GstElement *element);
static void gst_audiosink_set_arg(GtkObject *object,GtkArg *arg,guint id);
static void gst_audiosink_get_arg(GtkObject *object,GtkArg *arg,guint id);
@ -131,8 +127,6 @@ gst_audiosink_class_init(GstAudioSinkClass *klass) {
gtk_object_class_add_signals(gtkobject_class,gst_audiosink_signals,
LAST_SIGNAL);
gstelement_class->start = gst_audiosink_start;
gstelement_class->stop = gst_audiosink_stop;
gstelement_class->change_state = gst_audiosink_change_state;
}
@ -177,7 +171,6 @@ void gst_audiosink_sync_parms(GstAudioSink *audiosink) {
GstElement *gst_audiosink_new(gchar *name) {
GstElement *audiosink = GST_ELEMENT(gtk_type_new(GST_TYPE_AUDIOSINK));
gst_element_set_name(GST_ELEMENT(audiosink),name);
gst_element_set_state(GST_ELEMENT(audiosink),GST_STATE_COMPLETE);
return audiosink;
}
@ -335,42 +328,23 @@ static void gst_audiosink_close_audio(GstAudioSink *sink) {
g_print("audiosink: closed sound device\n");
}
static gboolean gst_audiosink_start(GstElement *element,
GstElementState state) {
static GstElementStateReturn gst_audiosink_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_AUDIOSINK(element), FALSE);
if (gst_audiosink_open_audio(GST_AUDIOSINK(element)) == TRUE) {
gst_element_set_state(element,GST_STATE_RUNNING | state);
return TRUE;
}
return FALSE;
}
static gboolean gst_audiosink_stop(GstElement *element) {
g_return_val_if_fail(GST_IS_AUDIOSINK(element), FALSE);
gst_audiosink_close_audio(GST_AUDIOSINK(element));
gst_element_set_state(element,~GST_STATE_RUNNING);
return TRUE;
}
static gboolean gst_audiosink_change_state(GstElement *element,
GstElementState state) {
g_return_val_if_fail(GST_IS_AUDIOSINK(element), FALSE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_audiosink_open_audio(GST_AUDIOSINK(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_AUDIOSINK_OPEN))
gst_audiosink_close_audio(GST_AUDIOSINK(element));
break;
default:
break;
}
/* otherwise (READY or higher) we need to open the sound card */
} else {
if (!GST_FLAG_IS_SET(element,GST_AUDIOSINK_OPEN)) {
if (!gst_audiosink_open_audio(GST_AUDIOSINK(element)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return TRUE;
}

5
plugins/elements/gstaudiosink.h
View file

@ -46,6 +46,11 @@ GstElementDetails gst_audiosink_details;
#define GST_IS_AUDIOSINK_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOSINK))
// NOTE: per-element flags start with 16 for now
typedef enum {
GST_AUDIOSINK_OPEN = (1 << 16),
} GstAudioSinkFlags;
typedef struct _GstAudioSink GstAudioSink;
typedef struct _GstAudioSinkClass GstAudioSinkClass;

34
plugins/elements/gstaudiosrc.c
View file

@ -57,8 +57,8 @@ static void gst_audiosrc_class_init(GstAudioSrcClass *klass);
static void gst_audiosrc_init(GstAudioSrc *audiosrc);
static void gst_audiosrc_set_arg(GtkObject *object,GtkArg *arg,guint id);
static void gst_audiosrc_get_arg(GtkObject *object,GtkArg *arg,guint id);
static gboolean gst_audiosrc_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_audiosrc_change_state(GstElement *element);
static void gst_audiosrc_close_audio(GstAudioSrc *src);
static gboolean gst_audiosrc_open_audio(GstAudioSrc *src);
void gst_audiosrc_sync_parms(GstAudioSrc *audiosrc);
@ -224,29 +224,28 @@ static void gst_audiosrc_get_arg(GtkObject *object,GtkArg *arg,guint id) {
}
}
static gboolean gst_audiosrc_change_state(GstElement *element,
GstElementState state) {
static GstElementStateReturn gst_audiosrc_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_AUDIOSRC(element), FALSE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_audiosrc_open_audio(GST_AUDIOSRC(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_AUDIOSRC_OPEN))
gst_audiosrc_close_audio(GST_AUDIOSRC(element));
break;
default:
break;
/* otherwise (READY or higher) we need to open the sound card */
} else {
if (!GST_FLAG_IS_SET(element,GST_AUDIOSRC_OPEN)) {
if (!gst_audiosrc_open_audio(GST_AUDIOSRC(element)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return TRUE;
}
static gboolean gst_audiosrc_open_audio(GstAudioSrc *src) {
g_return_val_if_fail(src->fd == -1, FALSE);
g_return_val_if_fail(!GST_FLAG_IS_SET(src,GST_AUDIOSRC_OPEN), FALSE);
/* first try to open the sound card */
src->fd = open("/dev/dsp",O_RDONLY);
@ -260,6 +259,7 @@ static gboolean gst_audiosrc_open_audio(GstAudioSrc *src) {
/* set card state */
gst_audiosrc_sync_parms(src);
DEBUG("opened audio\n");
GST_FLAG_SET(src,GST_AUDIOSRC_OPEN);
return TRUE;
}
@ -267,10 +267,12 @@ static gboolean gst_audiosrc_open_audio(GstAudioSrc *src) {
}
static void gst_audiosrc_close_audio(GstAudioSrc *src) {
g_return_if_fail(src->fd >= 0);
g_return_if_fail(GST_FLAG_IS_SET(src,GST_AUDIOSRC_OPEN));
close(src->fd);
src->fd = -1;
GST_FLAG_UNSET(src,GST_AUDIOSRC_OPEN);
}
void gst_audiosrc_sync_parms(GstAudioSrc *audiosrc) {

5
plugins/elements/gstaudiosrc.h
View file

@ -46,6 +46,11 @@ GstElementDetails gst_audiosrc_details;
#define GST_IS_AUDIOSRC_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOSRC)))
// NOTE: per-element flags start with 16 for now
typedef enum {
GST_AUDIOSRC_OPEN = (1 < 16),
} GstAudioSrcFlags;
typedef struct _GstAudioSrc GstAudioSrc;
typedef struct _GstAudioSrcClass GstAudioSrcClass;

50
plugins/elements/gstdisksrc.c
View file

@ -57,8 +57,7 @@ static void gst_disksrc_get_arg(GtkObject *object,GtkArg *arg,guint id);
static void gst_disksrc_push(GstSrc *src);
//static void gst_disksrc_push_region(GstSrc *src,gulong offset,gulong size);
static gboolean gst_disksrc_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_disksrc_change_state(GstElement *element);
static GstSrcClass *parent_class = NULL;
@ -138,18 +137,17 @@ static void gst_disksrc_set_arg(GtkObject *object,GtkArg *arg,guint id) {
switch(id) {
case ARG_LOCATION:
/* the element must be stopped in order to do this */
// g_return_if_fail(!GST_FLAG_IS_SET(src,GST_STATE_RUNNING));
/* the element must not be playing in order to do this */
g_return_if_fail(GST_STATE(src) < GST_STATE_PLAYING);
if (src->filename) g_free(src->filename);
/* clear the filename if we get a NULL (is that possible?) */
if (GTK_VALUE_STRING(*arg) == NULL) {
gst_element_set_state(GST_ELEMENT(object),GST_STATE_NULL);
src->filename = NULL;
gst_element_set_state(GST_ELEMENT(object),~GST_STATE_COMPLETE);
/* otherwise set the new filename */
} else {
src->filename = g_strdup(GTK_VALUE_STRING(*arg));
gst_element_set_state(GST_ELEMENT(object),GST_STATE_COMPLETE);
src->filename = g_strdup(GTK_VALUE_STRING(*arg));
}
break;
case ARG_BYTESPERREAD:
@ -199,6 +197,7 @@ void gst_disksrc_push(GstSrc *src) {
g_return_if_fail(src != NULL);
g_return_if_fail(GST_IS_DISKSRC(src));
g_return_if_fail(GST_FLAG_IS_SET(src,GST_DISKSRC_OPEN));
g_return_if_fail(GST_STATE(src) >= GST_STATE_READY);
disksrc = GST_DISKSRC(src);
/* create the buffer */
@ -237,7 +236,7 @@ void gst_disksrc_push(GstSrc *src) {
GST_BUFFER_SIZE(buf) = readbytes;
disksrc->curoffset += readbytes;
DEBUG("pushing with offset %lu\n", GST_BUFFER_OFFSET(buf));
DEBUG("pushing with offset %d\n", GST_BUFFER_OFFSET(buf));
/* we're done, push the buffer off now */
gst_pad_push(disksrc->srcpad,buf);
}
@ -246,7 +245,9 @@ void gst_disksrc_push(GstSrc *src) {
/* open the file, necessary to go to RUNNING state */
static gboolean gst_disksrc_open_file(GstDiskSrc *src) {
struct stat f_stat;
g_return_val_if_fail(!GST_FLAG_IS_SET(src,GST_DISKSRC_OPEN), FALSE);
g_return_val_if_fail(src->filename != NULL, FALSE);
/* open the file */
src->fd = open(src->filename,O_RDONLY);
@ -282,23 +283,24 @@ static void gst_disksrc_close_file(GstDiskSrc *src) {
GST_FLAG_UNSET(src,GST_DISKSRC_OPEN);
}
static gboolean gst_disksrc_change_state(GstElement *element,
GstElementState state) {
g_return_val_if_fail(GST_IS_DISKSRC(element), FALSE);
static GstElementStateReturn gst_disksrc_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_DISKSRC(element),GST_STATE_FAILURE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_disksrc_open_file(GST_DISKSRC(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_DISKSRC_OPEN))
gst_disksrc_close_file(GST_DISKSRC(element));
break;
default:
break;
}
/* otherwise (READY or higher) we need to open the file */
} else {
if (!GST_FLAG_IS_SET(element,GST_DISKSRC_OPEN)) {
if (!gst_disksrc_open_file(GST_DISKSRC(element)))
return GST_STATE_FAILURE;
}
}
/* if we haven't failed already, give the parent class a chance to ;-) */
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return TRUE;
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return GST_STATE_SUCCESS;
}

3
plugins/elements/gstdisksrc.h
View file

@ -58,9 +58,8 @@ struct _GstDiskSrc {
/* pads */
GstPad *srcpad;
/* filename */
/* file state */
gchar *filename;
/* fd */
gint fd;
gulong curoffset; /* current offset in file */

7
plugins/elements/gstfdsrc.c
View file

@ -129,18 +129,17 @@ static void gst_fdsrc_set_arg(GtkObject *object,GtkArg *arg,guint id) {
switch(id) {
case ARG_LOCATION:
/* the element must be stopped in order to do this */
g_return_if_fail(!GST_FLAG_IS_SET(src,GST_STATE_RUNNING));
/* the element must not be playing in order to do this */
g_return_if_fail(GST_STATE(src) < GST_STATE_PLAYING);
/* if we get a NULL, consider it to be a fd of 0 */
if (GTK_VALUE_STRING(*arg) == NULL) {
gst_element_set_state(GST_ELEMENT(object),GST_STATE_NULL);
src->fd = 0;
gst_element_set_state(GST_ELEMENT(object),~GST_STATE_COMPLETE);
/* otherwise set the new filename */
} else {
if (sscanf(GTK_VALUE_STRING(*arg),"%d",&fd))
src->fd = fd;
gst_element_set_state(GST_ELEMENT(object),GST_STATE_COMPLETE);
}
break;
case ARG_BYTESPERREAD:

44
plugins/elements/gsthttpsrc.c
View file

@ -39,8 +39,7 @@ GstElementDetails gst_httpsrc_details = {
static void gst_httpsrc_push(GstSrc *src);
static gboolean gst_httpsrc_open_url(GstHttpSrc *src);
static void gst_httpsrc_close_url(GstHttpSrc *src);
static gboolean gst_httpsrc_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_httpsrc_change_state(GstElement *element);
/* HttpSrc signals and args */
@ -155,8 +154,7 @@ static void gst_httpsrc_push(GstSrc *src) {
static gboolean gst_httpsrc_open_url(GstHttpSrc *httpsrc) {
gint status;
g_return_val_if_fail(httpsrc != NULL, FALSE);
g_return_val_if_fail(GST_IS_HTTPSRC(httpsrc), FALSE);
g_return_val_if_fail(!GST_FLAG_IS_SET(httpsrc,GST_HTTPSRC_OPEN), FALSE);
g_return_val_if_fail(httpsrc->url != NULL, FALSE);
httpsrc->request = ghttp_request_new();
@ -175,15 +173,20 @@ static gboolean gst_httpsrc_open_url(GstHttpSrc *httpsrc) {
/* get the fd so we can read data ourselves */
httpsrc->fd = ghttp_get_socket(httpsrc->request);
GST_FLAG_SET(httpsrc,GST_HTTPSRC_OPEN);
return TRUE;
}
/* unmap and close the file */
static void gst_httpsrc_close_url(GstHttpSrc *src) {
g_return_if_fail(GST_FLAG_IS_SET(src,GST_HTTPSRC_OPEN));
g_return_if_fail(src->fd > 0);
close(src->fd);
src->fd = 0;
GST_FLAG_UNSET(src,GST_HTTPSRC_OPEN);
}
static void gst_httpsrc_set_arg(GtkObject *object,GtkArg *arg,guint id) {
@ -195,18 +198,17 @@ static void gst_httpsrc_set_arg(GtkObject *object,GtkArg *arg,guint id) {
switch(id) {
case ARG_LOCATION:
/* the element must be stopped in order to do this */
g_return_if_fail(!GST_FLAG_IS_SET(src,GST_STATE_RUNNING));
/* the element must not be playing in order to do this */
g_return_if_fail(GST_STATE(src) < GST_STATE_PLAYING);
if (src->url) g_free(src->url);
/* clear the url if we get a NULL (is that possible?) */
if (GTK_VALUE_STRING(*arg) == NULL) {
gst_element_set_state(GST_ELEMENT(object),GST_STATE_NULL);
src->url = NULL;
gst_element_set_state(GST_ELEMENT(object),~GST_STATE_COMPLETE);
/* otherwise set the new url */
} else {
src->url = g_strdup(GTK_VALUE_STRING(*arg));
gst_element_set_state(GST_ELEMENT(object),GST_STATE_COMPLETE);
}
break;
case ARG_BYTESPERREAD:
@ -237,24 +239,20 @@ static void gst_httpsrc_get_arg(GtkObject *object,GtkArg *arg,guint id) {
}
}
static gboolean gst_httpsrc_change_state(GstElement *element,
GstElementState state) {
g_return_val_if_fail(GST_IS_HTTPSRC(element), FALSE);
static GstElementStateReturn gst_httpsrc_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_HTTPSRC(element),GST_STATE_FAILURE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_httpsrc_open_url(GST_HTTPSRC(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_HTTPSRC_OPEN))
gst_httpsrc_close_url(GST_HTTPSRC(element));
break;
default:
break;
} else {
if (!GST_FLAG_IS_SET(element,GST_HTTPSRC_OPEN)) {
if (!gst_httpsrc_open_url(GST_HTTPSRC(element)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return TRUE;
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return GST_STATE_SUCCESS;
}

5
plugins/elements/gsthttpsrc.h
View file

@ -47,6 +47,11 @@ GstElementDetails gst_httpsrc_details;
#define GST_IS_HTTPSRC_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_HTTPSRC)))
// NOTE: per-element flags start with 16 for now
typedef enum {
GST_HTTPSRC_OPEN = (1 << 16),
} GstHttpSrcFlags;
typedef struct _GstHttpSrc GstHttpSrc;
typedef struct _GstHttpSrcClass GstHttpSrcClass;

28
plugins/elements/gstpipefilter.c
View file

@ -59,8 +59,7 @@ static void gst_pipefilter_get_arg(GtkObject *object,GtkArg *arg,guint id);
void gst_pipefilter_chain(GstPad *pad,GstBuffer *buf);
static gboolean gst_pipefilter_change_state(GstElement *element,
GstElementState state);
static GstElementStateReturn gst_pipefilter_change_state(GstElement *element);
static GstFilterClass *parent_class = NULL;
//static guint gst_pipefilter_signals[LAST_SIGNAL] = { 0 };
@ -287,23 +286,22 @@ static void gst_pipefilter_close_file(GstPipefilter *src) {
GST_FLAG_UNSET(src,GST_PIPEFILTER_OPEN);
}
static gboolean gst_pipefilter_change_state(GstElement *element,
GstElementState state) {
static GstElementStateReturn gst_pipefilter_change_state(GstElement *element) {
g_return_val_if_fail(GST_IS_PIPEFILTER(element), FALSE);
switch (state) {
case GST_STATE_RUNNING:
if (!gst_pipefilter_open_file(GST_PIPEFILTER(element)))
return FALSE;
break;
case ~GST_STATE_RUNNING:
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING(element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET(element,GST_PIPEFILTER_OPEN))
gst_pipefilter_close_file(GST_PIPEFILTER(element));
break;
default:
break;
}
/* otherwise (READY or higher) we need to open the file */
} else {
if (!GST_FLAG_IS_SET(element,GST_PIPEFILTER_OPEN)) {
if (!gst_disksrc_open_file(GST_PIPEFILTER(element)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS(parent_class)->change_state)
return GST_ELEMENT_CLASS(parent_class)->change_state(element,state);
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
return TRUE;
}

10
plugins/elements/gstpipefilter.h
View file

@ -33,11 +33,6 @@ extern "C" {
GstElementDetails gst_pipefilter_details;
// NOTE: per-element flags start with 16 for now
typedef enum {
GST_PIPEFILTER_OPEN = (1 << 16),
} GstPipefilterFlags;
#define GST_TYPE_PIPEFILTER \
(gst_pipefilter_get_type())
#define GST_PIPEFILTER(obj) \
@ -49,6 +44,11 @@ typedef enum {
#define GST_IS_PIPEFILTER_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_PIPEFILTER))
// NOTE: per-element flags start with 16 for now
typedef enum {
GST_PIPEFILTER_OPEN = (1 << 16 ),
} GstPipeFilterFlags;
typedef struct _GstPipefilter GstPipefilter;
typedef struct _GstPipefilterClass GstPipefilterClass;