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basesrc: Add gst_base_src_new_seamless_segment()

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Merge new function from resindvd into the primary GstBaseSrc for
starting a new seamless segment.

API: gst_base_src_new_seamless_segment()
This commit is contained in:
Jan Schmidt 2009-11-21 16:37:34 +01:00
parent 022970e9f9
commit 332eb4ea4d
4 changed files with 66 additions and 0 deletions
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1
docs/libs/gstreamer-libs-sections.txt
View file

@ -237,6 +237,7 @@ gst_base_src_get_blocksize
gst_base_src_set_blocksize
gst_base_src_get_do_timestamp
gst_base_src_set_do_timestamp
gst_base_src_new_seamless_segment
GST_BASE_SRC_PAD
<SUBSECTION Standard>

63
libs/gst/base/gstbasesrc.c
View file

@ -697,6 +697,69 @@ gst_base_src_get_do_timestamp (GstBaseSrc * src)
return res;
}
/**
* gst_base_src_new_seamless_segment:
* @src: The source
* @start: The new start value for the segment
* @stop: Stop value for the new segment
* @position: The position value for the new segent
*
* Prepare a new seamless segment for emission downstream. This function must
* only be called by derived sub-classes, and only from the create() function,
* as the stream-lock needs to be held.
*
* The format for the new segment will be the current format of the source, as
* configured with gst_base_src_set_format()
*
* Returns: %TRUE if preparation of the seamless segment succeeded.
*
* Since: 0.10.26
*/
gboolean
gst_base_src_new_seamless_segment (GstBaseSrc * src, gint64 start, gint64 stop,
gint64 position)
{
gboolean res = TRUE;
GST_DEBUG_OBJECT (src,
"Starting new seamless segment. Start %" GST_TIME_FORMAT " stop %"
GST_TIME_FORMAT " position %" GST_TIME_FORMAT, GST_TIME_ARGS (start),
GST_TIME_ARGS (stop), GST_TIME_ARGS (position));
if (src->data.ABI.running) {
if (src->priv->close_segment)
gst_event_unref (src->priv->close_segment);
src->priv->close_segment =
gst_event_new_new_segment_full (TRUE,
src->segment.rate, src->segment.applied_rate, src->segment.format,
src->segment.start, src->segment.last_stop, src->segment.time);
}
gst_segment_set_newsegment_full (&src->segment, FALSE, src->segment.rate,
src->segment.applied_rate, src->segment.format, start, stop, position);
if (src->priv->start_segment)
gst_event_unref (src->priv->start_segment);
if (src->segment.rate >= 0.0) {
/* forward, we send data from last_stop to stop */
src->priv->start_segment =
gst_event_new_new_segment_full (FALSE,
src->segment.rate, src->segment.applied_rate, src->segment.format,
src->segment.last_stop, stop, src->segment.time);
} else {
/* reverse, we send data from last_stop to start */
src->priv->start_segment =
gst_event_new_new_segment_full (FALSE,
src->segment.rate, src->segment.applied_rate, src->segment.format,
src->segment.start, src->segment.last_stop, src->segment.time);
}
src->priv->discont = TRUE;
src->data.ABI.running = TRUE;
return res;
}
static gboolean
gst_base_src_setcaps (GstPad * pad, GstCaps * caps)
{

1
libs/gst/base/gstbasesrc.h
View file

@ -247,6 +247,7 @@ gulong gst_base_src_get_blocksize (GstBaseSrc *src);
void gst_base_src_set_do_timestamp (GstBaseSrc *src, gboolean timestamp);
gboolean gst_base_src_get_do_timestamp (GstBaseSrc *src);
gboolean gst_base_src_new_seamless_segment (GstBaseSrc *src, gint64 start, gint64 stop, gint64 position);
G_END_DECLS
#endif /* __GST_BASE_SRC_H__ */

1
win32/common/libgstbase.def
View file

@ -38,6 +38,7 @@ EXPORTS
gst_base_src_get_do_timestamp
gst_base_src_get_type
gst_base_src_is_live
gst_base_src_new_seamless_segment
gst_base_src_query_latency
gst_base_src_set_blocksize
gst_base_src_set_do_timestamp