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Fix seeking on gnomevfssrc

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Original commit message from CVS:
Fix seeking on gnomevfssrc
This commit is contained in:
Wim Taymans 2002-06-02 15:43:17 +00:00
parent cc5d778695
commit 37e7a7c5e2
1 changed files with 91 additions and 31 deletions
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122
ext/gnomevfs/gstgnomevfssrc.c
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@ -72,7 +72,6 @@ struct _GstGnomeVFSSrc {
/* handle */
GnomeVFSHandle *handle;
/* Seek stuff */
gboolean seek_happened;
gboolean need_flush;
/* local filename */
@ -117,19 +116,24 @@ enum {
GType gst_gnomevfssrc_get_type(void);
static void gst_gnomevfssrc_class_init(GstGnomeVFSSrcClass *klass);
static void gst_gnomevfssrc_init(GstGnomeVFSSrc *gnomevfssrc);
static void gst_gnomevfssrc_class_init (GstGnomeVFSSrcClass *klass);
static void gst_gnomevfssrc_init (GstGnomeVFSSrc *gnomevfssrc);
static void gst_gnomevfssrc_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void gst_gnomevfssrc_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static void gst_gnomevfssrc_set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec);
static void gst_gnomevfssrc_get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec);
static GstBuffer *gst_gnomevfssrc_get(GstPad *pad);
static GstBuffer* gst_gnomevfssrc_get (GstPad *pad);
static GstElementStateReturn gst_gnomevfssrc_change_state(GstElement *element);
static GstElementStateReturn
gst_gnomevfssrc_change_state (GstElement *element);
static void gst_gnomevfssrc_close_file(GstGnomeVFSSrc *src);
static gboolean gst_gnomevfssrc_open_file(GstGnomeVFSSrc *src);
static gboolean gst_gnomevfssrc_srcpad_event (GstPad *pad, GstEvent *event);
static void gst_gnomevfssrc_close_file (GstGnomeVFSSrc *src);
static gboolean gst_gnomevfssrc_open_file (GstGnomeVFSSrc *src);
static gboolean gst_gnomevfssrc_srcpad_event (GstPad *pad, GstEvent *event);
static gboolean gst_gnomevfssrc_srcpad_query (GstPad *pad, GstPadQueryType type,
GstFormat *format, gint64 *value);
static GstElementClass *parent_class = NULL;
@ -193,6 +197,8 @@ static void gst_gnomevfssrc_init(GstGnomeVFSSrc *gnomevfssrc)
gst_pad_set_get_function(gnomevfssrc->srcpad, gst_gnomevfssrc_get);
gst_pad_set_event_function (gnomevfssrc->srcpad,
gst_gnomevfssrc_srcpad_event);
gst_pad_set_query_function (gnomevfssrc->srcpad,
gst_gnomevfssrc_srcpad_query);
gst_element_add_pad(GST_ELEMENT(gnomevfssrc), gnomevfssrc->srcpad);
gnomevfssrc->filename = NULL;
@ -335,16 +341,24 @@ static GstBuffer *gst_gnomevfssrc_get(GstPad *pad)
GST_BUFFER_SIZE (buf) = src->bytes_per_read;
}
if (src->new_seek)
{
GstEvent *event;
GST_DEBUG (0,"new seek %lld", src->curoffset);
src->new_seek = FALSE;
GST_DEBUG (GST_CAT_EVENT, "gnomevfssrc sending discont");
event = gst_event_new_discontinuous (FALSE, GST_FORMAT_BYTES, src->curoffset, NULL);
GST_EVENT_DISCONT_FLUSH (event) = src->need_flush;
src->need_flush = FALSE;
return GST_BUFFER (event);
}
src->curoffset += GST_BUFFER_SIZE (buf);
g_object_notify ((GObject*) src, "offset");
if (src->new_seek)
{
/* FIXME do a discont, flush event */
GST_DEBUG (0,"new seek");
src->new_seek = FALSE;
}
} else {
/* allocate the space for the buffer data */
GST_BUFFER_DATA(buf) = g_malloc(src->bytes_per_read);
@ -352,12 +366,15 @@ static GstBuffer *gst_gnomevfssrc_get(GstPad *pad)
if (src->new_seek)
{
result = gnome_vfs_seek(src->handle,
GNOME_VFS_SEEK_START, src->curoffset);
GST_DEBUG(0, "new_seek: %s",
gnome_vfs_result_to_string(result));
/* FIXME do a discont, flush event */
GstEvent *event;
src->new_seek = FALSE;
GST_DEBUG (GST_CAT_EVENT, "gnomevfssrc sending discont");
event = gst_event_new_discontinuous (FALSE, GST_FORMAT_BYTES, src->curoffset, NULL);
GST_EVENT_DISCONT_FLUSH (event) = src->need_flush;
src->need_flush = FALSE;
return GST_BUFFER (event);
}
result = gnome_vfs_read(src->handle, GST_BUFFER_DATA(buf),
@ -381,6 +398,8 @@ static GstBuffer *gst_gnomevfssrc_get(GstPad *pad)
g_object_notify ((GObject*) src, "offset");
}
GST_BUFFER_TIMESTAMP (buf) = -1;
/* we're done, return the buffer */
return buf;
}
@ -461,6 +480,7 @@ static gboolean gst_gnomevfssrc_open_file(GstGnomeVFSSrc *src)
else
src->size = info->size;
GST_DEBUG(0, "size %lld", src->size);
g_object_notify (G_OBJECT (src), "filesize");
gnome_vfs_file_info_unref(info);
@ -509,20 +529,20 @@ static GstElementStateReturn gst_gnomevfssrc_change_state(GstElement *element)
GST_STATE_FAILURE);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
case GST_STATE_READY_TO_PAUSED:
if (!GST_FLAG_IS_SET(element, GST_GNOMEVFSSRC_OPEN)) {
if (!gst_gnomevfssrc_open_file
(GST_GNOMEVFSSRC(element)))
return GST_STATE_FAILURE;
}
break;
case GST_STATE_READY_TO_NULL:
case GST_STATE_PAUSED_TO_READY:
if (GST_FLAG_IS_SET(element, GST_GNOMEVFSSRC_OPEN))
gst_gnomevfssrc_close_file(GST_GNOMEVFSSRC
(element));
break;
case GST_STATE_READY_TO_PAUSED:
case GST_STATE_PAUSED_TO_READY:
case GST_STATE_NULL_TO_READY:
case GST_STATE_READY_TO_NULL:
default:
break;
}
@ -549,6 +569,32 @@ static gboolean plugin_init(GModule *module, GstPlugin *plugin)
return TRUE;
}
static gboolean
gst_gnomevfssrc_srcpad_query (GstPad *pad, GstPadQueryType type,
GstFormat *format, gint64 *value)
{
GstGnomeVFSSrc *src = GST_GNOMEVFSSRC (gst_pad_get_parent (pad));
switch (type) {
case GST_PAD_QUERY_TOTAL:
if (*format != GST_FORMAT_BYTES) {
return FALSE;
}
*value = src->size;
break;
case GST_PAD_QUERY_POSITION:
if (*format != GST_FORMAT_BYTES) {
return FALSE;
}
*value = src->curoffset;
break;
default:
return FALSE;
break;
}
return TRUE;
}
static gboolean
gst_gnomevfssrc_srcpad_event (GstPad *pad, GstEvent *event)
{
@ -557,27 +603,41 @@ gst_gnomevfssrc_srcpad_event (GstPad *pad, GstEvent *event)
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
{
gint64 desired_offset;
if (GST_EVENT_SEEK_FORMAT (event) != GST_FORMAT_BYTES) {
return FALSE;
}
switch (GST_EVENT_SEEK_METHOD (event)) {
case GST_SEEK_METHOD_SET:
src->curoffset = (guint64) GST_EVENT_SEEK_OFFSET (event);
desired_offset = (guint64) GST_EVENT_SEEK_OFFSET (event);
break;
case GST_SEEK_METHOD_CUR:
src->curoffset += GST_EVENT_SEEK_OFFSET (event);
desired_offset = src->curoffset + GST_EVENT_SEEK_OFFSET (event);
break;
case GST_SEEK_METHOD_END:
src->curoffset = src->size - ABS (GST_EVENT_SEEK_OFFSET (event));
desired_offset = src->size - ABS (GST_EVENT_SEEK_OFFSET (event));
break;
default:
return FALSE;
break;
}
g_object_notify (G_OBJECT (src), "offset");
src->seek_happened = TRUE;
if (!src->is_local) {
GnomeVFSResult result;
result = gnome_vfs_seek(src->handle,
GNOME_VFS_SEEK_START, desired_offset);
GST_DEBUG(0, "new_seek: %s",
gnome_vfs_result_to_string(result));
if (result != GNOME_VFS_OK) {
return FALSE;
}
}
src->curoffset = desired_offset;
src->new_seek = TRUE;
src->need_flush = GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH;
/* push a discontinuous event? */
g_object_notify (G_OBJECT (src), "offset");
break;
}
case GST_EVENT_FLUSH: