Commit f2fe4140 authored by Andy Wingo Wingo's avatar Andy Wingo Wingo
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gst/videotestsrc/gstvideotestsrc.c: Implement live source mode and unlocking.

Original commit message from CVS:
2005-09-28  Andy Wingo  <wingo@pobox.com>

* gst/videotestsrc/gstvideotestsrc.c: Implement live source mode
and unlocking.
parent d1c3b073
2005-09-28 Andy Wingo <wingo@pobox.com>
 
* gst/videotestsrc/gstvideotestsrc.c: Implement live source mode
and unlocking.
* gst/sine/gstsinesrc.c (gst_sinesrc_unlock): Actually implement
unlocking.
 
......
......@@ -59,7 +59,8 @@ enum
PROP_0,
PROP_PATTERN,
PROP_TIMESTAMP_OFFSET,
/* FILL ME */
PROP_IS_LIVE
/* FILL ME */
};
......@@ -80,6 +81,7 @@ static gboolean gst_videotestsrc_negotiate (GstBaseSrc * bsrc);
static void gst_videotestsrc_get_times (GstBaseSrc * src, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end);
static gboolean gst_videotestsrc_event (GstBaseSrc * bsrc, GstEvent * event);
static gboolean gst_videotestsrc_unlock (GstBaseSrc * bsrc);
static GstFlowReturn gst_videotestsrc_create (GstPushSrc * psrc,
GstBuffer ** buffer);
......@@ -139,25 +141,30 @@ gst_videotestsrc_class_init (GstVideoTestSrcClass * klass)
"Timestamp offset",
"An offset added to timestamps set on buffers (in ns)", G_MININT64,
G_MAXINT64, 0, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_IS_LIVE,
g_param_spec_boolean ("is-live", "Is Live",
"Whether to act as a live source", FALSE, G_PARAM_READWRITE));
gstbasesrc_class->get_caps = gst_videotestsrc_getcaps;
gstbasesrc_class->set_caps = gst_videotestsrc_setcaps;
gstbasesrc_class->negotiate = gst_videotestsrc_negotiate;
gstbasesrc_class->get_times = gst_videotestsrc_get_times;
gstbasesrc_class->event = gst_videotestsrc_event;
gstbasesrc_class->unlock = gst_videotestsrc_unlock;
gstpushsrc_class->create = gst_videotestsrc_create;
}
static void
gst_videotestsrc_init (GstVideoTestSrc * videotestsrc,
GstVideoTestSrcClass * g_class)
gst_videotestsrc_init (GstVideoTestSrc * src, GstVideoTestSrcClass * g_class)
{
gst_videotestsrc_set_pattern (videotestsrc, GST_VIDEOTESTSRC_SMPTE);
gst_videotestsrc_set_pattern (src, GST_VIDEOTESTSRC_SMPTE);
videotestsrc->segment_start_frame = -1;
videotestsrc->segment_end_frame = -1;
videotestsrc->timestamp_offset = 0;
src->segment_start_frame = -1;
src->segment_end_frame = -1;
src->timestamp_offset = 0;
gst_base_src_set_live (GST_BASE_SRC (src), FALSE);
}
static void
......@@ -186,14 +193,17 @@ static void
gst_videotestsrc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVideoTestSrc *videotestsrc = GST_VIDEOTESTSRC (object);
GstVideoTestSrc *src = GST_VIDEOTESTSRC (object);
switch (prop_id) {
case PROP_PATTERN:
gst_videotestsrc_set_pattern (videotestsrc, g_value_get_enum (value));
gst_videotestsrc_set_pattern (src, g_value_get_enum (value));
break;
case PROP_TIMESTAMP_OFFSET:
videotestsrc->timestamp_offset = g_value_get_int64 (value);
src->timestamp_offset = g_value_get_int64 (value);
break;
case PROP_IS_LIVE:
gst_base_src_set_live (GST_BASE_SRC (src), g_value_get_boolean (value));
break;
default:
break;
......@@ -204,14 +214,17 @@ static void
gst_videotestsrc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstVideoTestSrc *videotestsrc = GST_VIDEOTESTSRC (object);
GstVideoTestSrc *src = GST_VIDEOTESTSRC (object);
switch (prop_id) {
case PROP_PATTERN:
g_value_set_enum (value, videotestsrc->pattern_type);
g_value_set_enum (value, src->pattern_type);
break;
case PROP_TIMESTAMP_OFFSET:
g_value_set_int64 (value, videotestsrc->timestamp_offset);
g_value_set_int64 (value, src->timestamp_offset);
break;
case PROP_IS_LIVE:
g_value_set_boolean (value, gst_base_src_is_live (GST_BASE_SRC (src)));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
......@@ -394,27 +407,73 @@ gst_videotestsrc_event (GstBaseSrc * bsrc, GstEvent * event)
return res;
}
/* with STREAM_LOCK */
static GstClockReturn
gst_videotestsrc_wait (GstVideoTestSrc * src, GstClockTime time)
{
GstClockReturn ret;
GstClockTime base_time;
GST_LOCK (src);
/* clock_id should be NULL outside of this function */
g_assert (src->clock_id == NULL);
g_assert (GST_CLOCK_TIME_IS_VALID (time));
base_time = GST_ELEMENT (src)->base_time;
src->clock_id = gst_clock_new_single_shot_id (GST_ELEMENT_CLOCK (src),
time + base_time);
GST_UNLOCK (src);
ret = gst_clock_id_wait (src->clock_id, NULL);
GST_LOCK (src);
gst_clock_id_unref (src->clock_id);
src->clock_id = NULL;
GST_UNLOCK (src);
return ret;
}
static gboolean
gst_videotestsrc_unlock (GstBaseSrc * bsrc)
{
GstVideoTestSrc *src = GST_VIDEOTESTSRC (bsrc);
GST_LOCK (src);
if (src->clock_id)
gst_clock_id_unschedule (src->clock_id);
GST_UNLOCK (src);
return TRUE;
}
static GstFlowReturn
gst_videotestsrc_create (GstPushSrc * psrc, GstBuffer ** buffer)
{
GstVideoTestSrc *videotestsrc;
GstVideoTestSrc *src;
gulong newsize;
GstBuffer *outbuf;
GstFlowReturn res;
videotestsrc = GST_VIDEOTESTSRC (psrc);
src = GST_VIDEOTESTSRC (psrc);
if (videotestsrc->fourcc == NULL)
if (src->fourcc == NULL)
goto not_negotiated;
newsize = gst_videotestsrc_get_size (videotestsrc, videotestsrc->width,
videotestsrc->height);
newsize = gst_videotestsrc_get_size (src, src->width, src->height);
g_return_val_if_fail (newsize > 0, GST_FLOW_ERROR);
GST_LOG_OBJECT (videotestsrc, "creating buffer of %ld bytes for %dx%d image",
newsize, videotestsrc->width, videotestsrc->height);
GST_LOG_OBJECT (src, "creating buffer of %ld bytes for %dx%d image",
newsize, src->width, src->height);
if (gst_base_src_is_live (GST_BASE_SRC (src))) {
GstClockReturn ret;
ret =
gst_videotestsrc_wait (src, src->running_time + src->timestamp_offset);
if (ret == GST_CLOCK_UNSCHEDULED)
goto unscheduled;
}
#ifdef USE_PEER_BUFFERALLOC
res =
gst_pad_alloc_buffer (GST_BASE_SRC_PAD (psrc), GST_BUFFER_OFFSET_NONE,
......@@ -430,23 +489,27 @@ gst_videotestsrc_create (GstPushSrc * psrc, GstBuffer ** buffer)
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (GST_BASE_SRC_PAD (psrc)));
#endif
videotestsrc->make_image (videotestsrc, (void *) GST_BUFFER_DATA (outbuf),
videotestsrc->width, videotestsrc->height);
src->make_image (src, (void *) GST_BUFFER_DATA (outbuf),
src->width, src->height);
GST_BUFFER_TIMESTAMP (outbuf) = videotestsrc->timestamp_offset +
videotestsrc->running_time;
GST_BUFFER_DURATION (outbuf) = GST_SECOND / (double) videotestsrc->rate;
GST_BUFFER_TIMESTAMP (outbuf) = src->timestamp_offset + src->running_time;
GST_BUFFER_DURATION (outbuf) = GST_SECOND / (double) src->rate;
videotestsrc->n_frames++;
videotestsrc->running_time += GST_BUFFER_DURATION (outbuf);
src->n_frames++;
src->running_time += GST_BUFFER_DURATION (outbuf);
*buffer = outbuf;
return GST_FLOW_OK;
unscheduled:
{
GST_DEBUG_OBJECT (src, "Unscheduled while waiting for clock");
return GST_FLOW_WRONG_STATE;
}
not_negotiated:
{
GST_ELEMENT_ERROR (videotestsrc, CORE, NEGOTIATION, (NULL),
GST_ELEMENT_ERROR (src, CORE, NEGOTIATION, (NULL),
("format wasn't negotiated before get function"));
return GST_FLOW_NOT_NEGOTIATED;
}
......
......@@ -67,6 +67,7 @@ struct _GstVideoTestSrc {
gint64 segment_start_frame;
gint64 segment_end_frame;
gboolean segment;
GstClockID clock_id;
void (*make_image) (GstVideoTestSrc *v, unsigned char *dest, int w, int h);
};
......
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