mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-27 12:11:13 +00:00
Code Issues 1 Projects Releases Wiki Activity

imagefreeze: port to 0.11

Browse source
This commit is contained in:
Mark Nauwelaerts 2012-03-14 17:07:50 +01:00
parent 7f3a00decd
commit 98c681fe5b
3 changed files with 121 additions and 195 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
configure.ac
View file

@ -312,7 +312,7 @@ dnl *** plug-ins to include ***
dnl Non ported plugins (non-dependant, then dependant) dnl Non ported plugins (non-dependant, then dependant)
dnl Make sure you have a space before and after all plugins dnl Make sure you have a space before and after all plugins
GST_PLUGINS_NONPORTED="deinterlace interleave flx \ GST_PLUGINS_NONPORTED="deinterlace interleave flx \
imagefreeze smpte \ smpte \
videobox \ videobox \
cairo cairo_gobject dv1394 \ cairo cairo_gobject dv1394 \
oss oss4 \ oss oss4 \

311
gst/imagefreeze/gstimagefreeze.c
View file

@ -53,37 +53,47 @@ static GstStateChangeReturn gst_image_freeze_change_state (GstElement * element,
GstStateChange transition); GstStateChange transition);
static GstFlowReturn gst_image_freeze_sink_chain (GstPad * pad, static GstFlowReturn gst_image_freeze_sink_chain (GstPad * pad,
GstBuffer * buffer); GstObject * parent, GstBuffer * buffer);
static gboolean gst_image_freeze_sink_event (GstPad * pad, GstEvent * event); static gboolean gst_image_freeze_sink_event (GstPad * pad, GstObject * parent,
static gboolean gst_image_freeze_sink_setcaps (GstPad * pad, GstCaps * caps); GstEvent * event);
static GstCaps *gst_image_freeze_sink_getcaps (GstPad * pad); static gboolean gst_image_freeze_sink_setcaps (GstImageFreeze * self,
static gboolean gst_image_freeze_sink_query (GstPad * pad, GstQuery * query); GstCaps * caps);
static GstFlowReturn gst_image_freeze_sink_bufferalloc (GstPad * pad, static GstCaps *gst_image_freeze_sink_getcaps (GstImageFreeze * self,
guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf); GstCaps * filter);
static gboolean gst_image_freeze_sink_query (GstPad * pad, GstObject * parent,
GstQuery * query);
static void gst_image_freeze_src_loop (GstPad * pad); static void gst_image_freeze_src_loop (GstPad * pad);
static gboolean gst_image_freeze_src_event (GstPad * pad, GstEvent * event); static gboolean gst_image_freeze_src_event (GstPad * pad, GstObject * parent,
static gboolean gst_image_freeze_src_query (GstPad * pad, GstQuery * query); GstEvent * event);
static const GstQueryType *gst_image_freeze_src_query_type (GstPad * pad); static gboolean gst_image_freeze_src_query (GstPad * pad, GstObject * parent,
GstQuery * query);
static GstStaticPadTemplate sink_pad_template = GST_STATIC_PAD_TEMPLATE ("sink", static GstStaticPadTemplate sink_pad_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK, GST_PAD_SINK,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-yuv; video/x-raw-rgb; video/x-raw-gray")); GST_STATIC_CAPS ("video/x-raw"));
static GstStaticPadTemplate src_pad_template = static GstStaticPadTemplate src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-yuv; video/x-raw-rgb; video/x-raw-gray")); GST_STATIC_CAPS ("video/x-raw"));
GST_DEBUG_CATEGORY_STATIC (gst_image_freeze_debug); GST_DEBUG_CATEGORY_STATIC (gst_image_freeze_debug);
#define GST_CAT_DEFAULT gst_image_freeze_debug #define GST_CAT_DEFAULT gst_image_freeze_debug
GST_BOILERPLATE (GstImageFreeze, gst_image_freeze, GstElement, #define gst_image_freeze_parent_class parent_class
GST_TYPE_ELEMENT); G_DEFINE_TYPE (GstImageFreeze, gst_image_freeze, GST_TYPE_ELEMENT);
static void static void
gst_image_freeze_base_init (gpointer g_class) gst_image_freeze_class_init (GstImageFreezeClass * klass)
{ {
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class); GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
gobject_class->finalize = gst_image_freeze_finalize;
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_image_freeze_change_state);
gst_element_class_set_details_simple (gstelement_class, gst_element_class_set_details_simple (gstelement_class,
"Still frame stream generator", "Still frame stream generator",
@ -98,19 +108,7 @@ gst_image_freeze_base_init (gpointer g_class)
} }
static void static void
gst_image_freeze_class_init (GstImageFreezeClass * klass) gst_image_freeze_init (GstImageFreeze * self)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
gobject_class->finalize = gst_image_freeze_finalize;
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_image_freeze_change_state);
}
static void
gst_image_freeze_init (GstImageFreeze * self, GstImageFreezeClass * g_class)
{ {
self->sinkpad = gst_pad_new_from_static_template (&sink_pad_template, "sink"); self->sinkpad = gst_pad_new_from_static_template (&sink_pad_template, "sink");
gst_pad_set_chain_function (self->sinkpad, gst_pad_set_chain_function (self->sinkpad,
@ -119,12 +117,7 @@ gst_image_freeze_init (GstImageFreeze * self, GstImageFreezeClass * g_class)
GST_DEBUG_FUNCPTR (gst_image_freeze_sink_event)); GST_DEBUG_FUNCPTR (gst_image_freeze_sink_event));
gst_pad_set_query_function (self->sinkpad, gst_pad_set_query_function (self->sinkpad,
GST_DEBUG_FUNCPTR (gst_image_freeze_sink_query)); GST_DEBUG_FUNCPTR (gst_image_freeze_sink_query));
gst_pad_set_setcaps_function (self->sinkpad, GST_PAD_SET_PROXY_ALLOCATION (self->sinkpad);
GST_DEBUG_FUNCPTR (gst_image_freeze_sink_setcaps));
gst_pad_set_getcaps_function (self->sinkpad,
GST_DEBUG_FUNCPTR (gst_image_freeze_sink_getcaps));
gst_pad_set_bufferalloc_function (self->sinkpad,
GST_DEBUG_FUNCPTR (gst_image_freeze_sink_bufferalloc));
gst_element_add_pad (GST_ELEMENT (self), self->sinkpad); gst_element_add_pad (GST_ELEMENT (self), self->sinkpad);
self->srcpad = gst_pad_new_from_static_template (&src_pad_template, "src"); self->srcpad = gst_pad_new_from_static_template (&src_pad_template, "src");
@ -132,12 +125,10 @@ gst_image_freeze_init (GstImageFreeze * self, GstImageFreezeClass * g_class)
GST_DEBUG_FUNCPTR (gst_image_freeze_src_event)); GST_DEBUG_FUNCPTR (gst_image_freeze_src_event));
gst_pad_set_query_function (self->srcpad, gst_pad_set_query_function (self->srcpad,
GST_DEBUG_FUNCPTR (gst_image_freeze_src_query)); GST_DEBUG_FUNCPTR (gst_image_freeze_src_query));
gst_pad_set_query_type_function (self->srcpad,
GST_DEBUG_FUNCPTR (gst_image_freeze_src_query_type));
gst_pad_use_fixed_caps (self->srcpad); gst_pad_use_fixed_caps (self->srcpad);
gst_element_add_pad (GST_ELEMENT (self), self->srcpad); gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
self->lock = g_mutex_new (); g_mutex_init (&self->lock);
gst_image_freeze_reset (self); gst_image_freeze_reset (self);
} }
@ -149,9 +140,7 @@ gst_image_freeze_finalize (GObject * object)
gst_image_freeze_reset (self); gst_image_freeze_reset (self);
if (self->lock) g_mutex_clear (&self->lock);
g_mutex_free (self->lock);
self->lock = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object); G_OBJECT_CLASS (parent_class)->finalize (object);
} }
@ -161,30 +150,30 @@ gst_image_freeze_reset (GstImageFreeze * self)
{ {
GST_DEBUG_OBJECT (self, "Resetting internal state"); GST_DEBUG_OBJECT (self, "Resetting internal state");
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
gst_buffer_replace (&self->buffer, NULL); gst_buffer_replace (&self->buffer, NULL);
gst_segment_init (&self->segment, GST_FORMAT_TIME); gst_segment_init (&self->segment, GST_FORMAT_TIME);
self->need_segment = TRUE; self->need_segment = TRUE;
gst_event_replace (&self->close_segment, NULL);
self->fps_n = self->fps_d = 0; self->fps_n = self->fps_d = 0;
self->offset = 0; self->offset = 0;
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
g_atomic_int_set (&self->seeking, 0); g_atomic_int_set (&self->seeking, 0);
} }
static gboolean static gboolean
gst_image_freeze_sink_setcaps (GstPad * pad, GstCaps * caps) gst_image_freeze_sink_setcaps (GstImageFreeze * self, GstCaps * caps)
{ {
GstImageFreeze *self = GST_IMAGE_FREEZE (gst_pad_get_parent (pad));
gboolean ret = FALSE; gboolean ret = FALSE;
GstStructure *s; GstStructure *s;
gint fps_n, fps_d; gint fps_n, fps_d;
GstCaps *othercaps, *intersection; GstCaps *othercaps, *intersection;
guint i, n; guint i, n;
GstPad *pad;
pad = self->sinkpad;
caps = gst_caps_make_writable (gst_caps_ref (caps)); caps = gst_caps_make_writable (gst_caps_ref (caps));
GST_DEBUG_OBJECT (pad, "Setting caps: %" GST_PTR_FORMAT, caps); GST_DEBUG_OBJECT (pad, "Setting caps: %" GST_PTR_FORMAT, caps);
@ -207,7 +196,7 @@ gst_image_freeze_sink_setcaps (GstPad * pad, GstCaps * caps)
intersection = othercaps = NULL; intersection = othercaps = NULL;
/* 3. Intersect with downstream peer caps */ /* 3. Intersect with downstream peer caps */
othercaps = gst_pad_peer_get_caps (self->srcpad); othercaps = gst_pad_peer_query_caps (self->srcpad, NULL);
if (othercaps) { if (othercaps) {
intersection = gst_caps_intersect (caps, othercaps); intersection = gst_caps_intersect (caps, othercaps);
GST_DEBUG_OBJECT (pad, "Intersecting: %" GST_PTR_FORMAT, caps); GST_DEBUG_OBJECT (pad, "Intersecting: %" GST_PTR_FORMAT, caps);
@ -227,15 +216,15 @@ gst_image_freeze_sink_setcaps (GstPad * pad, GstCaps * caps)
GstStructure *s = gst_structure_copy (gst_caps_get_structure (caps, i)); GstStructure *s = gst_structure_copy (gst_caps_get_structure (caps, i));
gst_caps_append_structure (candidate, s); gst_caps_append_structure (candidate, s);
if (gst_pad_peer_accept_caps (self->srcpad, candidate)) { if (gst_pad_peer_query_accept_caps (self->srcpad, candidate)) {
if (gst_structure_has_field_typed (s, "framerate", GST_TYPE_FRACTION) || if (gst_structure_has_field_typed (s, "framerate", GST_TYPE_FRACTION) ||
gst_structure_fixate_field_nearest_fraction (s, "framerate", 25, 1)) { gst_structure_fixate_field_nearest_fraction (s, "framerate", 25, 1)) {
gst_structure_get_fraction (s, "framerate", &fps_n, &fps_d); gst_structure_get_fraction (s, "framerate", &fps_n, &fps_d);
if (fps_d != 0) { if (fps_d != 0) {
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
self->fps_n = fps_n; self->fps_n = fps_n;
self->fps_d = fps_d; self->fps_d = fps_d;
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
GST_DEBUG_OBJECT (pad, "Setting caps %" GST_PTR_FORMAT, candidate); GST_DEBUG_OBJECT (pad, "Setting caps %" GST_PTR_FORMAT, candidate);
gst_pad_set_caps (self->srcpad, candidate); gst_pad_set_caps (self->srcpad, candidate);
gst_caps_unref (candidate); gst_caps_unref (candidate);
@ -255,24 +244,26 @@ done:
GST_ERROR_OBJECT (pad, "No usable caps found"); GST_ERROR_OBJECT (pad, "No usable caps found");
gst_caps_unref (caps); gst_caps_unref (caps);
gst_object_unref (self);
return ret; return ret;
} }
static GstCaps * static GstCaps *
gst_image_freeze_sink_getcaps (GstPad * pad) gst_image_freeze_sink_getcaps (GstImageFreeze * self, GstCaps * filter)
{ {
GstImageFreeze *self = GST_IMAGE_FREEZE (gst_pad_get_parent (pad));
GstCaps *ret, *tmp; GstCaps *ret, *tmp;
guint i, n; guint i, n;
GstPad *pad;
if (GST_PAD_CAPS (pad)) { pad = self->sinkpad;
ret = gst_caps_copy (GST_PAD_CAPS (pad)); if (gst_pad_has_current_caps (pad)) {
ret = gst_pad_get_current_caps (pad);
gst_caps_replace (&ret, gst_caps_copy (ret));
gst_caps_unref (ret);
goto done; goto done;
} }
tmp = gst_pad_peer_get_caps (self->srcpad); tmp = gst_pad_peer_query_caps (self->srcpad, filter);
if (tmp) { if (tmp) {
ret = gst_caps_intersect (tmp, gst_pad_get_pad_template_caps (pad)); ret = gst_caps_intersect (tmp, gst_pad_get_pad_template_caps (pad));
gst_caps_unref (tmp); gst_caps_unref (tmp);
@ -290,17 +281,15 @@ gst_image_freeze_sink_getcaps (GstPad * pad)
} }
done: done:
gst_object_unref (self);
GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret); GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
return ret; return ret;
} }
static gboolean static gboolean
gst_image_freeze_sink_query (GstPad * pad, GstQuery * query) gst_image_freeze_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
{ {
GstImageFreeze *self = GST_IMAGE_FREEZE (gst_pad_get_parent (pad)); GstImageFreeze *self = GST_IMAGE_FREEZE (parent);
gboolean ret; gboolean ret;
GstPad *peer = gst_pad_get_peer (self->srcpad); GstPad *peer = gst_pad_get_peer (self->srcpad);
@ -311,52 +300,24 @@ gst_image_freeze_sink_query (GstPad * pad, GstQuery * query)
GST_INFO_OBJECT (pad, "No peer yet, dropping query"); GST_INFO_OBJECT (pad, "No peer yet, dropping query");
ret = FALSE; ret = FALSE;
} else { } else {
ret = gst_pad_query (peer, query); switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:
{
GstCaps *caps;
gst_query_parse_caps (query, &caps);
caps = gst_image_freeze_sink_getcaps (self, caps);
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
ret = TRUE;
break;
}
default:
ret = gst_pad_query_default (peer, parent, query);
}
gst_object_unref (peer); gst_object_unref (peer);
} }
gst_object_unref (self);
return ret;
}
static GstFlowReturn
gst_image_freeze_sink_bufferalloc (GstPad * pad, guint64 offset, guint size,
GstCaps * caps, GstBuffer ** buf)
{
GstImageFreeze *self = GST_IMAGE_FREEZE (gst_pad_get_parent (pad));
GstFlowReturn ret;
gboolean do_alloc;
GST_LOG_OBJECT (pad, "Allocating buffer with offset 0x%" G_GINT64_MODIFIER
"x and size %u with caps: %" GST_PTR_FORMAT, offset, size, caps);
*buf = NULL;
g_mutex_lock (self->lock);
do_alloc = self->buffer == NULL;
g_mutex_unlock (self->lock);
if (do_alloc) {
gboolean seeking = FALSE;
do {
GST_PAD_STREAM_LOCK (self->srcpad);
ret = gst_pad_alloc_buffer (self->srcpad, offset, size, caps, buf);
seeking = ret == GST_FLOW_FLUSHING && g_atomic_int_get (&self->seeking);
GST_PAD_STREAM_UNLOCK (self->srcpad);
} while (seeking);
if (G_UNLIKELY (ret != GST_FLOW_OK))
GST_ERROR_OBJECT (pad, "Allocating buffer failed: %s",
gst_flow_get_name (ret));
} else {
/* Let upstream go EOS if we already have a buffer */
ret = GST_FLOW_EOS;
}
gst_object_unref (self);
return ret; return ret;
} }
@ -381,14 +342,14 @@ gst_image_freeze_convert (GstImageFreeze * self,
case GST_FORMAT_DEFAULT:{ case GST_FORMAT_DEFAULT:{
switch (*dest_format) { switch (*dest_format) {
case GST_FORMAT_TIME: case GST_FORMAT_TIME:
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
if (self->fps_n == 0) if (self->fps_n == 0)
*dest_value = -1; *dest_value = -1;
else else
*dest_value = *dest_value =
gst_util_uint64_scale (src_value, GST_SECOND * self->fps_d, gst_util_uint64_scale (src_value, GST_SECOND * self->fps_d,
self->fps_n); self->fps_n);
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
ret = TRUE; ret = TRUE;
break; break;
default: default:
@ -399,11 +360,11 @@ gst_image_freeze_convert (GstImageFreeze * self,
case GST_FORMAT_TIME:{ case GST_FORMAT_TIME:{
switch (*dest_format) { switch (*dest_format) {
case GST_FORMAT_DEFAULT: case GST_FORMAT_DEFAULT:
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
*dest_value = *dest_value =
gst_util_uint64_scale (src_value, self->fps_n, gst_util_uint64_scale (src_value, self->fps_n,
self->fps_d * GST_SECOND); self->fps_d * GST_SECOND);
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
ret = TRUE; ret = TRUE;
break; break;
default: default:
@ -418,24 +379,10 @@ gst_image_freeze_convert (GstImageFreeze * self,
return ret; return ret;
} }
static const GstQueryType *
gst_image_freeze_src_query_type (GstPad * pad)
{
static const GstQueryType types[] = {
GST_QUERY_POSITION,
GST_QUERY_DURATION,
GST_QUERY_SEEKING,
GST_QUERY_CONVERT,
0
};
return types;
}
static gboolean static gboolean
gst_image_freeze_src_query (GstPad * pad, GstQuery * query) gst_image_freeze_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{ {
GstImageFreeze *self = GST_IMAGE_FREEZE (gst_pad_get_parent (pad)); GstImageFreeze *self = GST_IMAGE_FREEZE (parent);
gboolean ret = FALSE; gboolean ret = FALSE;
GST_LOG_OBJECT (pad, "Handling query of type '%s'", GST_LOG_OBJECT (pad, "Handling query of type '%s'",
@ -463,16 +410,16 @@ gst_image_freeze_src_query (GstPad * pad, GstQuery * query)
gst_query_parse_position (query, &format, NULL); gst_query_parse_position (query, &format, NULL);
switch (format) { switch (format) {
case GST_FORMAT_DEFAULT:{ case GST_FORMAT_DEFAULT:{
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
position = self->offset; position = self->offset;
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
ret = TRUE; ret = TRUE;
break; break;
} }
case GST_FORMAT_TIME:{ case GST_FORMAT_TIME:{
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
position = self->segment.last_stop; position = self->segment.position;
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
ret = TRUE; ret = TRUE;
break; break;
} }
@ -497,20 +444,20 @@ gst_image_freeze_src_query (GstPad * pad, GstQuery * query)
gst_query_parse_duration (query, &format, NULL); gst_query_parse_duration (query, &format, NULL);
switch (format) { switch (format) {
case GST_FORMAT_TIME:{ case GST_FORMAT_TIME:{
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
duration = self->segment.stop; duration = self->segment.stop;
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
ret = TRUE; ret = TRUE;
break; break;
} }
case GST_FORMAT_DEFAULT:{ case GST_FORMAT_DEFAULT:{
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
duration = self->segment.stop; duration = self->segment.stop;
if (duration != -1) if (duration != -1)
duration = duration =
gst_util_uint64_scale (duration, self->fps_n, gst_util_uint64_scale (duration, self->fps_n,
GST_SECOND * self->fps_d); GST_SECOND * self->fps_d);
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
ret = TRUE; ret = TRUE;
break; break;
} }
@ -544,20 +491,29 @@ gst_image_freeze_src_query (GstPad * pad, GstQuery * query)
break; break;
} }
gst_object_unref (self);
return ret; return ret;
} }
static gboolean static gboolean
gst_image_freeze_sink_event (GstPad * pad, GstEvent * event) gst_image_freeze_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{ {
GstImageFreeze *self = GST_IMAGE_FREEZE (gst_pad_get_parent (pad)); GstImageFreeze *self = GST_IMAGE_FREEZE (parent);
gboolean ret; gboolean ret;
GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event)); GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) { switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
gst_image_freeze_sink_setcaps (self, caps);
gst_event_unref (event);
ret = TRUE;
break;
}
case GST_EVENT_EOS: case GST_EVENT_EOS:
if (!self->buffer) { if (!self->buffer) {
/* if we receive EOS before a buffer arrives, then let it pass */ /* if we receive EOS before a buffer arrives, then let it pass */
@ -566,7 +522,7 @@ gst_image_freeze_sink_event (GstPad * pad, GstEvent * event)
break; break;
} }
/* fall-through */ /* fall-through */
case GST_EVENT_NEWSEGMENT: case GST_EVENT_SEGMENT:
GST_DEBUG_OBJECT (pad, "Dropping event"); GST_DEBUG_OBJECT (pad, "Dropping event");
gst_event_unref (event); gst_event_unref (event);
ret = TRUE; ret = TRUE;
@ -579,14 +535,13 @@ gst_image_freeze_sink_event (GstPad * pad, GstEvent * event)
break; break;
} }
gst_object_unref (self);
return ret; return ret;
} }
static gboolean static gboolean
gst_image_freeze_src_event (GstPad * pad, GstEvent * event) gst_image_freeze_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
{ {
GstImageFreeze *self = GST_IMAGE_FREEZE (gst_pad_get_parent (pad)); GstImageFreeze *self = GST_IMAGE_FREEZE (parent);
gboolean ret; gboolean ret;
GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event)); GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
@ -649,39 +604,20 @@ gst_image_freeze_src_event (GstPad * pad, GstEvent * event)
GST_PAD_STREAM_LOCK (self->srcpad); GST_PAD_STREAM_LOCK (self->srcpad);
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
gst_event_replace (&self->close_segment, NULL);
if (!flush) {
if (!self->need_segment && self->segment.rate >= 0) {
self->close_segment =
gst_event_new_new_segment_full (TRUE, self->segment.rate,
self->segment.applied_rate, self->segment.format,
self->segment.start, self->segment.last_stop, self->segment.time);
} else if (!self->need_segment) {
gint64 stop;
if ((stop = self->segment.stop) == -1) gst_segment_do_seek (&self->segment, rate, format, flags, start_type,
stop = self->segment.duration;
self->close_segment =
gst_event_new_new_segment_full (TRUE, self->segment.rate,
self->segment.applied_rate, self->segment.format,
self->segment.last_stop, stop, self->segment.last_stop);
}
}
gst_segment_set_seek (&self->segment, rate, format, flags, start_type,
start, stop_type, stop, NULL); start, stop_type, stop, NULL);
self->need_segment = TRUE; self->need_segment = TRUE;
last_stop = self->segment.last_stop; last_stop = self->segment.position;
start_task = self->buffer != NULL; start_task = self->buffer != NULL;
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
if (flush) { if (flush) {
GstEvent *e; GstEvent *e;
e = gst_event_new_flush_stop (); e = gst_event_new_flush_stop (TRUE);
gst_pad_push_event (self->srcpad, e); gst_pad_push_event (self->srcpad, e);
g_atomic_int_set (&self->seeking, 0); g_atomic_int_set (&self->seeking, 0);
} }
@ -699,13 +635,13 @@ gst_image_freeze_src_event (GstPad * pad, GstEvent * event)
GST_DEBUG_OBJECT (pad, "Seek successful"); GST_DEBUG_OBJECT (pad, "Seek successful");
if (start_task) { if (start_task) {
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
if (self->buffer != NULL) if (self->buffer != NULL)
gst_pad_start_task (self->srcpad, gst_pad_start_task (self->srcpad,
(GstTaskFunction) gst_image_freeze_src_loop, self->srcpad); (GstTaskFunction) gst_image_freeze_src_loop, self->srcpad);
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
} }
ret = TRUE; ret = TRUE;
@ -719,20 +655,20 @@ gst_image_freeze_src_event (GstPad * pad, GstEvent * event)
break; break;
} }
gst_object_unref (self);
return ret; return ret;
} }
static GstFlowReturn static GstFlowReturn
gst_image_freeze_sink_chain (GstPad * pad, GstBuffer * buffer) gst_image_freeze_sink_chain (GstPad * pad, GstObject * parent,
GstBuffer * buffer)
{ {
GstImageFreeze *self = GST_IMAGE_FREEZE (GST_PAD_PARENT (pad)); GstImageFreeze *self = GST_IMAGE_FREEZE (parent);
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
if (self->buffer) { if (self->buffer) {
GST_DEBUG_OBJECT (pad, "Already have a buffer, dropping"); GST_DEBUG_OBJECT (pad, "Already have a buffer, dropping");
gst_buffer_unref (buffer); gst_buffer_unref (buffer);
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
return GST_FLOW_EOS; return GST_FLOW_EOS;
} }
@ -740,7 +676,7 @@ gst_image_freeze_sink_chain (GstPad * pad, GstBuffer * buffer)
gst_pad_start_task (self->srcpad, (GstTaskFunction) gst_image_freeze_src_loop, gst_pad_start_task (self->srcpad, (GstTaskFunction) gst_image_freeze_src_loop,
self->srcpad); self->srcpad);
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
return GST_FLOW_OK; return GST_FLOW_OK;
} }
@ -751,36 +687,28 @@ gst_image_freeze_src_loop (GstPad * pad)
GstBuffer *buffer; GstBuffer *buffer;
guint64 offset; guint64 offset;
GstClockTime timestamp, timestamp_end; GstClockTime timestamp, timestamp_end;
gint64 cstart, cstop; guint64 cstart, cstop;
gboolean in_seg, eos; gboolean in_seg, eos;
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
if (!self->buffer) { if (!self->buffer) {
GST_ERROR_OBJECT (pad, "Have no buffer yet"); GST_ERROR_OBJECT (pad, "Have no buffer yet");
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
gst_pad_pause_task (self->srcpad); gst_pad_pause_task (self->srcpad);
return; return;
} }
buffer = gst_buffer_ref (self->buffer); buffer = gst_buffer_ref (self->buffer);
buffer = gst_buffer_make_metadata_writable (buffer); buffer = gst_buffer_make_writable (buffer);
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
if (self->close_segment) {
GST_DEBUG_OBJECT (pad, "Closing previous segment");
gst_pad_push_event (self->srcpad, self->close_segment);
self->close_segment = NULL;
}
if (self->need_segment) { if (self->need_segment) {
GstEvent *e; GstEvent *e;
GST_DEBUG_OBJECT (pad, "Pushing NEWSEGMENT event: %" GST_SEGMENT_FORMAT, GST_DEBUG_OBJECT (pad, "Pushing NEWSEGMENT event: %" GST_SEGMENT_FORMAT,
&self->segment); &self->segment);
e = gst_event_new_new_segment_full (FALSE, self->segment.rate, e = gst_event_new_segment (&self->segment);
self->segment.applied_rate, self->segment.format, self->segment.start,
self->segment.stop, self->segment.start);
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
if (self->segment.rate >= 0) { if (self->segment.rate >= 0) {
self->offset = self->offset =
gst_util_uint64_scale (self->segment.start, self->fps_n, gst_util_uint64_scale (self->segment.start, self->fps_n,
@ -790,14 +718,14 @@ gst_image_freeze_src_loop (GstPad * pad)
gst_util_uint64_scale (self->segment.stop, self->fps_n, gst_util_uint64_scale (self->segment.stop, self->fps_n,
self->fps_d * GST_SECOND); self->fps_d * GST_SECOND);
} }
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
self->need_segment = FALSE; self->need_segment = FALSE;
gst_pad_push_event (self->srcpad, e); gst_pad_push_event (self->srcpad, e);
} }
g_mutex_lock (self->lock); g_mutex_lock (&self->lock);
offset = self->offset; offset = self->offset;
if (self->fps_n != 0) { if (self->fps_n != 0) {
@ -825,13 +753,13 @@ gst_image_freeze_src_loop (GstPad * pad)
timestamp_end, &cstart, &cstop); timestamp_end, &cstart, &cstop);
if (in_seg) if (in_seg)
gst_segment_set_last_stop (&self->segment, GST_FORMAT_TIME, cstart); self->segment.position = cstart;
if (self->segment.rate >= 0) if (self->segment.rate >= 0)
self->offset++; self->offset++;
else else
self->offset--; self->offset--;
g_mutex_unlock (self->lock); g_mutex_unlock (&self->lock);
GST_DEBUG_OBJECT (pad, "Handling buffer with timestamp %" GST_TIME_FORMAT, GST_DEBUG_OBJECT (pad, "Handling buffer with timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp)); GST_TIME_ARGS (timestamp));
@ -843,7 +771,6 @@ gst_image_freeze_src_loop (GstPad * pad)
GST_BUFFER_DURATION (buffer) = cstop - cstart; GST_BUFFER_DURATION (buffer) = cstop - cstart;
GST_BUFFER_OFFSET (buffer) = offset; GST_BUFFER_OFFSET (buffer) = offset;
GST_BUFFER_OFFSET_END (buffer) = offset + 1; GST_BUFFER_OFFSET_END (buffer) = offset + 1;
gst_buffer_set_caps (buffer, GST_PAD_CAPS (self->srcpad));
ret = gst_pad_push (self->srcpad, buffer); ret = gst_pad_push (self->srcpad, buffer);
GST_DEBUG_OBJECT (pad, "Pushing buffer resulted in %s", GST_DEBUG_OBJECT (pad, "Pushing buffer resulted in %s",
gst_flow_get_name (ret)); gst_flow_get_name (ret));

3
gst/imagefreeze/gstimagefreeze.h
View file

@ -47,13 +47,12 @@ struct _GstImageFreeze
GstPad *sinkpad; GstPad *sinkpad;
GstPad *srcpad; GstPad *srcpad;
GMutex *lock; GMutex lock;
GstBuffer *buffer; GstBuffer *buffer;
gint fps_n, fps_d; gint fps_n, fps_d;
GstSegment segment; GstSegment segment;
gboolean need_segment; gboolean need_segment;
GstEvent *close_segment;
guint64 offset; guint64 offset;