mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 16:26:39 +00:00
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.
This commit is contained in:
Andy Wingo
parent
d1c3b07399
commit
f2fe41400a
3 changed files with 95 additions and 28 deletions
|
|
@ -1,5 +1,8 @@
|
|||
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);
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in a new issue