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videorate: Port to basetransform

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This commit is contained in:
Sjoerd Simons 2011-08-23 10:11:52 +02:00
parent f2438913f9
commit ea46b3c706
3 changed files with 153 additions and 268 deletions
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4
gst/videorate/Makefile.am
View file

@ -3,9 +3,9 @@ noinst_HEADERS = gstvideorate.h
plugin_LTLIBRARIES = libgstvideorate.la
libgstvideorate_la_SOURCES = gstvideorate.c
libgstvideorate_la_CFLAGS = $(GST_CFLAGS)
libgstvideorate_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS)
libgstvideorate_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstvideorate_la_LIBADD = $(GST_LIBS)
libgstvideorate_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS)
libgstvideorate_la_LIBTOOLFLAGS = --tag=disable-static
Android.mk: Makefile.am $(BUILT_SOURCES)

410
gst/videorate/gstvideorate.c
View file

@ -122,24 +122,38 @@ static GstStaticPadTemplate gst_video_rate_sink_template =
static void gst_video_rate_swap_prev (GstVideoRate * videorate,
GstBuffer * buffer, gint64 time);
static gboolean gst_video_rate_event (GstPad * pad, GstEvent * event);
static gboolean gst_video_rate_query (GstPad * pad, GstQuery * query);
static GstFlowReturn gst_video_rate_chain (GstPad * pad, GstBuffer * buffer);
static gboolean gst_video_rate_event (GstBaseTransform * trans,
GstEvent * event);
static gboolean gst_video_rate_query (GstBaseTransform * trans,
GstPadDirection direction, GstQuery * query);
static gboolean gst_video_rate_setcaps (GstBaseTransform * trans,
GstCaps * in_caps, GstCaps * out_caps);
static GstCaps *gst_video_rate_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps);
static void gst_video_rate_fixate_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
static GstFlowReturn gst_video_rate_prepare_output_buffer (GstBaseTransform *
trans, GstBuffer * input, gint size, GstCaps * caps, GstBuffer ** buf);
static GstFlowReturn gst_video_rate_transform_ip (GstBaseTransform * trans,
GstBuffer * buf);
static gboolean gst_video_rate_start (GstBaseTransform * trans);
static void gst_video_rate_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_video_rate_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_video_rate_change_state (GstElement * element,
GstStateChange transition);
/*static guint gst_video_rate_signals[LAST_SIGNAL] = { 0 }; */
static GParamSpec *pspec_drop = NULL;
static GParamSpec *pspec_duplicate = NULL;
GST_BOILERPLATE (GstVideoRate, gst_video_rate, GstElement, GST_TYPE_ELEMENT);
GST_BOILERPLATE (GstVideoRate, gst_video_rate,
GstBaseTransform, GST_TYPE_BASE_TRANSFORM);
static void
gst_video_rate_base_init (gpointer g_class)
@ -161,13 +175,24 @@ static void
gst_video_rate_class_init (GstVideoRateClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *base_class = GST_BASE_TRANSFORM_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->set_property = gst_video_rate_set_property;
object_class->get_property = gst_video_rate_get_property;
base_class->set_caps = GST_DEBUG_FUNCPTR (gst_video_rate_setcaps);
base_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_video_rate_transform_caps);
base_class->transform_ip = GST_DEBUG_FUNCPTR (gst_video_rate_transform_ip);
base_class->prepare_output_buffer =
GST_DEBUG_FUNCPTR (gst_video_rate_prepare_output_buffer);
base_class->event = GST_DEBUG_FUNCPTR (gst_video_rate_event);
base_class->start = GST_DEBUG_FUNCPTR (gst_video_rate_start);
base_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_video_rate_fixate_caps);
base_class->query = GST_DEBUG_FUNCPTR (gst_video_rate_query);
g_object_class_install_property (object_class, ARG_IN,
g_param_spec_uint64 ("in", "In",
"Number of input frames", 0, G_MAXUINT64, 0,
@ -229,208 +254,105 @@ gst_video_rate_class_init (GstVideoRateClass * klass)
"Period over which to average the framerate (in ns) (0 = disabled)",
0, G_MAXINT64, DEFAULT_AVERAGE_PERIOD,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
element_class->change_state = GST_DEBUG_FUNCPTR (gst_video_rate_change_state);
}
/* return the caps that can be used on out_pad given in_caps on in_pad */
static gboolean
gst_video_rate_transformcaps (GstPad * in_pad, GstCaps * in_caps,
GstPad * out_pad, GstCaps ** out_caps)
{
GstCaps *intersect;
const GstCaps *in_templ;
gint i;
GSList *extra_structures = NULL;
GSList *iter;
in_templ = gst_pad_get_pad_template_caps (in_pad);
intersect = gst_caps_intersect (in_caps, in_templ);
/* all possible framerates are allowed */
for (i = 0; i < gst_caps_get_size (intersect); i++) {
GstStructure *structure;
structure = gst_caps_get_structure (intersect, i);
if (gst_structure_has_field (structure, "framerate")) {
GstStructure *copy_structure;
copy_structure = gst_structure_copy (structure);
gst_structure_set (copy_structure,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
extra_structures = g_slist_append (extra_structures, copy_structure);
}
}
/* append the extra structures */
for (iter = extra_structures; iter != NULL; iter = g_slist_next (iter)) {
gst_caps_append_structure (intersect, (GstStructure *) iter->data);
}
g_slist_free (extra_structures);
*out_caps = intersect;
return TRUE;
}
static GstCaps *
gst_video_rate_getcaps (GstPad * pad)
gst_video_rate_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps)
{
GstVideoRate *videorate;
GstPad *otherpad;
GstCaps *caps;
GstCaps *ret;
GstStructure *s;
videorate = GST_VIDEO_RATE (GST_PAD_PARENT (pad));
/* Should always be called with simple caps */
g_return_val_if_fail (GST_CAPS_IS_SIMPLE (caps), NULL);
otherpad = (pad == videorate->srcpad) ? videorate->sinkpad :
videorate->srcpad;
ret = gst_caps_copy (caps);
/* we can do what the peer can */
caps = gst_pad_peer_get_caps (otherpad);
if (caps) {
GstCaps *transform;
s = gst_structure_copy (gst_caps_get_structure (caps, 0));
gst_video_rate_transformcaps (otherpad, caps, pad, &transform);
gst_caps_unref (caps);
caps = transform;
} else {
/* no peer, our padtemplate is enough then */
caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
}
/* set the framerate as a range */
gst_structure_set (s, "framerate", GST_TYPE_FRACTION_RANGE, 0, 1,
G_MAXINT, 1, NULL);
return caps;
gst_caps_append_structure (ret, s);
return ret;
}
static void
gst_video_rate_fixate_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstStructure *s;
gint num, denom;
s = gst_caps_get_structure (caps, 0);
if (G_UNLIKELY (!gst_structure_get_fraction (s, "framerate", &num, &denom)))
return;
s = gst_caps_get_structure (othercaps, 0);
gst_structure_fixate_field_nearest_fraction (s, "framerate", num, denom);
}
static gboolean
gst_video_rate_setcaps (GstPad * pad, GstCaps * caps)
gst_video_rate_setcaps (GstBaseTransform * trans, GstCaps * in_caps,
GstCaps * out_caps)
{
GstVideoRate *videorate;
GstStructure *structure;
gboolean ret = TRUE;
GstPad *otherpad, *opeer;
gint rate_numerator, rate_denominator;
videorate = GST_VIDEO_RATE (gst_pad_get_parent (pad));
videorate = GST_VIDEO_RATE (trans);
GST_DEBUG_OBJECT (pad, "setcaps called %" GST_PTR_FORMAT, caps);
GST_DEBUG_OBJECT (trans, "setcaps called in: %" GST_PTR_FORMAT
" out: %" GST_PTR_FORMAT, in_caps, out_caps);
structure = gst_caps_get_structure (caps, 0);
structure = gst_caps_get_structure (in_caps, 0);
if (!gst_structure_get_fraction (structure, "framerate",
&rate_numerator, &rate_denominator))
goto no_framerate;
if (pad == videorate->srcpad) {
/* out_frame_count is scaled by the frame rate caps when calculating next_ts.
* when the frame rate caps change, we must update base_ts and reset
* out_frame_count */
if (videorate->to_rate_numerator) {
videorate->base_ts +=
gst_util_uint64_scale (videorate->out_frame_count,
videorate->to_rate_denominator * GST_SECOND,
videorate->to_rate_numerator);
}
videorate->out_frame_count = 0;
videorate->to_rate_numerator = rate_numerator;
videorate->to_rate_denominator = rate_denominator;
videorate->from_rate_numerator = rate_numerator;
videorate->from_rate_denominator = rate_denominator;
structure = gst_caps_get_structure (out_caps, 0);
if (!gst_structure_get_fraction (structure, "framerate",
&rate_numerator, &rate_denominator))
goto no_framerate;
/* out_frame_count is scaled by the frame rate caps when calculating next_ts.
* when the frame rate caps change, we must update base_ts and reset
* out_frame_count */
if (videorate->to_rate_numerator) {
videorate->base_ts +=
gst_util_uint64_scale (videorate->out_frame_count,
videorate->to_rate_denominator * GST_SECOND,
videorate->to_rate_numerator);
}
videorate->out_frame_count = 0;
videorate->to_rate_numerator = rate_numerator;
videorate->to_rate_denominator = rate_denominator;
if (rate_numerator)
videorate->wanted_diff = gst_util_uint64_scale_int (GST_SECOND,
rate_denominator, rate_numerator);
otherpad = videorate->sinkpad;
} else {
videorate->from_rate_numerator = rate_numerator;
videorate->from_rate_denominator = rate_denominator;
otherpad = videorate->srcpad;
}
else
videorate->wanted_diff = 0;
/* now try to find something for the peer */
opeer = gst_pad_get_peer (otherpad);
if (opeer) {
if (gst_pad_accept_caps (opeer, caps)) {
/* the peer accepts the caps as they are */
gst_pad_set_caps (otherpad, caps);
ret = TRUE;
} else {
GstCaps *peercaps;
GstCaps *transform = NULL;
ret = FALSE;
/* see how we can transform the input caps */
if (!gst_video_rate_transformcaps (pad, caps, otherpad, &transform))
goto no_transform;
/* see what the peer can do */
peercaps = gst_pad_get_caps (opeer);
GST_DEBUG_OBJECT (opeer, "icaps %" GST_PTR_FORMAT, peercaps);
GST_DEBUG_OBJECT (videorate, "transform %" GST_PTR_FORMAT, transform);
/* filter against our possibilities */
caps = gst_caps_intersect (peercaps, transform);
gst_caps_unref (peercaps);
gst_caps_unref (transform);
GST_DEBUG_OBJECT (videorate, "intersect %" GST_PTR_FORMAT, caps);
/* could turn up empty, due to e.g. colorspace etc */
if (gst_caps_get_size (caps) == 0) {
gst_caps_unref (caps);
goto no_transform;
}
/* take first possibility */
gst_caps_truncate (caps);
structure = gst_caps_get_structure (caps, 0);
/* and fixate */
gst_structure_fixate_field_nearest_fraction (structure, "framerate",
rate_numerator, rate_denominator);
gst_structure_get_fraction (structure, "framerate",
&rate_numerator, &rate_denominator);
if (otherpad == videorate->srcpad) {
videorate->to_rate_numerator = rate_numerator;
videorate->to_rate_denominator = rate_denominator;
} else {
videorate->from_rate_numerator = rate_numerator;
videorate->from_rate_denominator = rate_denominator;
}
if (gst_structure_has_field (structure, "interlaced"))
gst_structure_fixate_field_boolean (structure, "interlaced", FALSE);
if (gst_structure_has_field (structure, "color-matrix"))
gst_structure_fixate_field_string (structure, "color-matrix", "sdtv");
if (gst_structure_has_field (structure, "chroma-site"))
gst_structure_fixate_field_string (structure, "chroma-site", "mpeg2");
if (gst_structure_has_field (structure, "pixel-aspect-ratio"))
gst_structure_fixate_field_nearest_fraction (structure,
"pixel-aspect-ratio", 1, 1);
gst_pad_set_caps (otherpad, caps);
gst_caps_unref (caps);
ret = TRUE;
}
gst_object_unref (opeer);
}
done:
/* After a setcaps, our caps may have changed. In that case, we can't use
* the old buffer, if there was one (it might have different dimensions) */
GST_DEBUG_OBJECT (videorate, "swapping old buffers");
gst_video_rate_swap_prev (videorate, NULL, GST_CLOCK_TIME_NONE);
videorate->last_ts = GST_CLOCK_TIME_NONE;
videorate->average = 0;
gst_object_unref (videorate);
return ret;
no_framerate:
{
GST_DEBUG_OBJECT (videorate, "no framerate specified");
goto done;
}
no_transform:
{
GST_DEBUG_OBJECT (videorate, "no framerate transform possible");
ret = FALSE;
goto done;
}
@ -459,38 +381,19 @@ gst_video_rate_reset (GstVideoRate * videorate)
static void
gst_video_rate_init (GstVideoRate * videorate, GstVideoRateClass * klass)
{
videorate->sinkpad =
gst_pad_new_from_static_template (&gst_video_rate_sink_template, "sink");
gst_pad_set_event_function (videorate->sinkpad,
GST_DEBUG_FUNCPTR (gst_video_rate_event));
gst_pad_set_chain_function (videorate->sinkpad,
GST_DEBUG_FUNCPTR (gst_video_rate_chain));
gst_pad_set_getcaps_function (videorate->sinkpad,
GST_DEBUG_FUNCPTR (gst_video_rate_getcaps));
gst_pad_set_setcaps_function (videorate->sinkpad,
GST_DEBUG_FUNCPTR (gst_video_rate_setcaps));
gst_element_add_pad (GST_ELEMENT (videorate), videorate->sinkpad);
videorate->srcpad =
gst_pad_new_from_static_template (&gst_video_rate_src_template, "src");
gst_pad_set_query_function (videorate->srcpad,
GST_DEBUG_FUNCPTR (gst_video_rate_query));
gst_pad_set_getcaps_function (videorate->srcpad,
GST_DEBUG_FUNCPTR (gst_video_rate_getcaps));
gst_pad_set_setcaps_function (videorate->srcpad,
GST_DEBUG_FUNCPTR (gst_video_rate_setcaps));
gst_element_add_pad (GST_ELEMENT (videorate), videorate->srcpad);
gst_video_rate_reset (videorate);
videorate->silent = DEFAULT_SILENT;
videorate->new_pref = DEFAULT_NEW_PREF;
videorate->drop_only = DEFAULT_DROP_ONLY;
videorate->average_period = DEFAULT_AVERAGE_PERIOD;
videorate->average_period_set = DEFAULT_AVERAGE_PERIOD;
videorate->from_rate_numerator = 0;
videorate->from_rate_denominator = 0;
videorate->to_rate_numerator = 0;
videorate->to_rate_denominator = 0;
gst_base_transform_set_gap_aware (GST_BASE_TRANSFORM (videorate), TRUE);
}
/* flush the oldest buffer */
@ -542,13 +445,12 @@ gst_video_rate_flush_prev (GstVideoRate * videorate, gboolean duplicate)
/* adapt for looping, bring back to time in current segment. */
GST_BUFFER_TIMESTAMP (outbuf) = push_ts - videorate->segment.accum;
}
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (videorate->srcpad));
GST_LOG_OBJECT (videorate,
"old is best, dup, pushing buffer outgoing ts %" GST_TIME_FORMAT,
GST_TIME_ARGS (push_ts));
res = gst_pad_push (videorate->srcpad, outbuf);
res = gst_pad_push (GST_BASE_TRANSFORM_SRC_PAD (videorate), outbuf);
return res;
@ -567,7 +469,7 @@ gst_video_rate_swap_prev (GstVideoRate * videorate, GstBuffer * buffer,
GST_LOG_OBJECT (videorate, "swap_prev: storing buffer %p in prev", buffer);
if (videorate->prevbuf)
gst_buffer_unref (videorate->prevbuf);
videorate->prevbuf = buffer;
videorate->prevbuf = buffer != NULL ? gst_buffer_ref (buffer) : NULL;
videorate->prev_ts = time;
}
@ -593,12 +495,11 @@ gst_video_rate_notify_duplicate (GstVideoRate * videorate)
#define MAGIC_LIMIT 25
static gboolean
gst_video_rate_event (GstPad * pad, GstEvent * event)
gst_video_rate_event (GstBaseTransform * trans, GstEvent * event)
{
GstVideoRate *videorate;
gboolean ret;
videorate = GST_VIDEO_RATE (gst_pad_get_parent (pad));
videorate = GST_VIDEO_RATE (trans);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
@ -715,12 +616,7 @@ gst_video_rate_event (GstPad * pad, GstEvent * event)
break;
}
ret = gst_pad_push_event (videorate->srcpad, event);
done:
gst_object_unref (videorate);
return ret;
return TRUE;
/* ERRORS */
format_error:
@ -728,18 +624,20 @@ format_error:
GST_WARNING_OBJECT (videorate,
"Got segment but doesn't have GST_FORMAT_TIME value");
gst_event_unref (event);
ret = FALSE;
goto done;
return FALSE;
}
}
static gboolean
gst_video_rate_query (GstPad * pad, GstQuery * query)
gst_video_rate_query (GstBaseTransform * trans, GstPadDirection direction,
GstQuery * query)
{
GstVideoRate *videorate;
GstVideoRate *videorate = GST_VIDEO_RATE (trans);
gboolean res = FALSE;
GstPad *otherpad;
videorate = GST_VIDEO_RATE (gst_pad_get_parent (pad));
otherpad = (direction == GST_PAD_SRC) ?
GST_BASE_TRANSFORM_SINK_PAD (trans) : GST_BASE_TRANSFORM_SRC_PAD (trans);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
@ -749,7 +647,8 @@ gst_video_rate_query (GstPad * pad, GstQuery * query)
guint64 latency;
GstPad *peer;
if ((peer = gst_pad_get_peer (videorate->sinkpad))) {
if (videorate->average_period == 0
&& (peer = gst_pad_get_peer (otherpad))) {
if ((res = gst_pad_query (peer, query))) {
gst_query_parse_latency (query, &live, &min, &max);
@ -787,16 +686,15 @@ gst_video_rate_query (GstPad * pad, GstQuery * query)
break;
}
default:
res = gst_pad_query_default (pad, query);
res = parent_class->query (trans, direction, query);
break;
}
gst_object_unref (videorate);
return res;
}
static GstFlowReturn
gst_video_rate_chain_max_avg (GstVideoRate * videorate, GstBuffer * buf)
gst_video_rate_trans_ip_max_avg (GstVideoRate * videorate, GstBuffer * buf)
{
GstClockTime ts = GST_BUFFER_TIMESTAMP (buf);
@ -840,26 +738,39 @@ gst_video_rate_chain_max_avg (GstVideoRate * videorate, GstBuffer * buf)
push:
videorate->out++;
return gst_pad_push (videorate->srcpad, buf);
return GST_FLOW_OK;
drop:
gst_buffer_unref (buf);
if (!videorate->silent)
gst_video_rate_notify_drop (videorate);
return GST_BASE_TRANSFORM_FLOW_DROPPED;
}
static GstFlowReturn
gst_video_rate_prepare_output_buffer (GstBaseTransform * trans,
GstBuffer * input, gint size, GstCaps * caps, GstBuffer ** buf)
{
if (gst_buffer_is_metadata_writable (input)) {
gst_buffer_set_caps (input, caps);
*buf = gst_buffer_ref (input);
} else {
*buf = gst_buffer_create_sub (input, 0, GST_BUFFER_SIZE (input));
gst_buffer_set_caps (*buf, caps);
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_video_rate_chain (GstPad * pad, GstBuffer * buffer)
gst_video_rate_transform_ip (GstBaseTransform * trans, GstBuffer * buffer)
{
GstVideoRate *videorate;
GstFlowReturn res = GST_FLOW_OK;
GstFlowReturn res = GST_BASE_TRANSFORM_FLOW_DROPPED;
GstClockTime intime, in_ts, in_dur;
GstClockTime avg_period;
gboolean skip = FALSE;
videorate = GST_VIDEO_RATE (GST_PAD_PARENT (pad));
videorate = GST_VIDEO_RATE (trans);
/* make sure the denominators are not 0 */
if (videorate->from_rate_denominator == 0 ||
@ -887,7 +798,7 @@ gst_video_rate_chain (GstPad * pad, GstBuffer * buffer)
}
if (videorate->average_period > 0)
return gst_video_rate_chain_max_avg (videorate, buffer);
return gst_video_rate_trans_ip_max_avg (videorate, buffer);
in_ts = GST_BUFFER_TIMESTAMP (buffer);
in_dur = GST_BUFFER_DURATION (buffer);
@ -951,7 +862,6 @@ gst_video_rate_chain (GstPad * pad, GstBuffer * buffer)
videorate->drop++;
if (!videorate->silent)
gst_video_rate_notify_drop (videorate);
gst_buffer_unref (buffer);
goto done;
}
@ -975,13 +885,13 @@ gst_video_rate_chain (GstPad * pad, GstBuffer * buffer)
/* output first one when its the best */
if (diff1 <= diff2) {
GstFlowReturn r;
count++;
/* on error the _flush function posted a warning already */
if ((res =
gst_video_rate_flush_prev (videorate,
if ((r = gst_video_rate_flush_prev (videorate,
count > 1)) != GST_FLOW_OK) {
gst_buffer_unref (buffer);
res = r;
goto done;
}
}
@ -1029,7 +939,6 @@ done:
not_negotiated:
{
GST_WARNING_OBJECT (videorate, "no framerate negotiated");
gst_buffer_unref (buffer);
res = GST_FLOW_NOT_NEGOTIATED;
goto done;
}
@ -1038,11 +947,18 @@ invalid_buffer:
{
GST_WARNING_OBJECT (videorate,
"Got buffer with GST_CLOCK_TIME_NONE timestamp, discarding it");
gst_buffer_unref (buffer);
res = GST_BASE_TRANSFORM_FLOW_DROPPED;
goto done;
}
}
static gboolean
gst_video_rate_start (GstBaseTransform * trans)
{
gst_video_rate_reset (GST_VIDEO_RATE (trans));
return TRUE;
}
static void
gst_video_rate_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
@ -1064,7 +980,7 @@ gst_video_rate_set_property (GObject * object,
videorate->drop_only = g_value_get_boolean (value);
break;
case ARG_AVERAGE_PERIOD:
videorate->average_period = g_value_get_uint64 (value);
videorate->average_period_set = g_value_get_uint64 (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -1106,7 +1022,7 @@ gst_video_rate_get_property (GObject * object,
g_value_set_boolean (value, videorate->drop_only);
break;
case ARG_AVERAGE_PERIOD:
g_value_set_uint64 (value, videorate->average_period);
g_value_set_uint64 (value, videorate->average_period_set);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -1115,36 +1031,6 @@ gst_video_rate_get_property (GObject * object,
GST_OBJECT_UNLOCK (videorate);
}
static GstStateChangeReturn
gst_video_rate_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstVideoRate *videorate;
videorate = GST_VIDEO_RATE (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
videorate->discont = TRUE;
videorate->last_ts = -1;
break;
default:
break;
}
ret = parent_class->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_video_rate_reset (videorate);
break;
default:
break;
}
return ret;
}
static gboolean
plugin_init (GstPlugin * plugin)
{

7
gst/videorate/gstvideorate.h
View file

@ -21,6 +21,7 @@
#define __GST_VIDEO_RATE_H__
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
G_BEGIN_DECLS
@ -45,9 +46,7 @@ typedef struct _GstVideoRateClass GstVideoRateClass;
*/
struct _GstVideoRate
{
GstElement element;
GstPad *sinkpad, *srcpad;
GstBaseTransform parent;
/* video state */
gint from_rate_numerator, from_rate_denominator;
@ -81,7 +80,7 @@ struct _GstVideoRate
struct _GstVideoRateClass
{
GstElementClass parent_class;
GstBaseTransformClass parent_class;
};
GType gst_video_rate_get_type (void);