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Ported goom.

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Original commit message from CVS:
* configure.ac:
* gst/goom/Makefile.am:
* gst/goom/gstgoom.c: (gst_goom_init), (gst_goom_sink_setcaps),
(gst_goom_src_setcaps), (gst_goom_src_negotiate), (gst_goom_event),
(gst_goom_chain), (gst_goom_change_state), (plugin_init):
Ported goom.
Added goom and alpha to build.
This commit is contained in:
Wim Taymans 2005-05-18 09:58:13 +00:00
parent 97f9bab6e8
commit 9a43a5236c
4 changed files with 152 additions and 95 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
2005-05-18 Wim Taymans <wim@fluendo.com>
* configure.ac:
* gst/goom/Makefile.am:
* gst/goom/gstgoom.c: (gst_goom_init), (gst_goom_sink_setcaps),
(gst_goom_src_setcaps), (gst_goom_src_negotiate), (gst_goom_event),
(gst_goom_chain), (gst_goom_change_state), (plugin_init):
Ported goom.
Added goom and alpha to build.
2005-05-17 Wim Taymans <wim@fluendo.com>
* configure.ac:

4
configure.ac
View file

@ -305,8 +305,10 @@ AC_SUBST(GST_PLUGIN_LDFLAGS)
dnl these are all the gst plug-ins, compilable without additional libs
GST_PLUGINS_ALL="\
alpha \
videofilter \
effectv \
goom \
law \
rtp \
rtsp \
@ -489,7 +491,9 @@ AC_CONFIG_FILES(
Makefile
gst-plugins.spec
gst/Makefile
gst/alpha/Makefile
gst/effectv/Makefile
gst/goom/Makefile
gst/law/Makefile
gst/rtp/Makefile
gst/rtsp/Makefile

4
gst/goom/Makefile.am
View file

@ -8,9 +8,9 @@ libgstgoom_la_SOURCES = gstgoom.c goom_core.c $(GOOM_FILTER_FILES) graphic.c lin
noinst_HEADERS = filters.h goom_core.h goom_tools.h graphic.h lines.h
libgstgoom_la_CFLAGS = $(GST_CFLAGS) $(GOOM_FILTER_CFLAGS)
libgstgoom_la_CFLAGS = $(GST_CFLAGS) $(GOOM_FILTER_CFLAGS) $(GST_PLUGINS_LIBS_CFLAGS)
libgstgoom_la_LIBADD =
libgstgoom_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstgoom_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) $(GST_BASE_LIBS)
EXTRA_DIST = filters.c

229
gst/goom/gstgoom.c
View file

@ -62,7 +62,6 @@ struct _GstGOOM
gint width;
gint height;
gint channels;
gboolean srcnegotiated;
gboolean disposed;
};
@ -121,13 +120,10 @@ static void gst_goom_dispose (GObject * object);
static GstElementStateReturn gst_goom_change_state (GstElement * element);
static void gst_goom_chain (GstPad * pad, GstData * _data);
static GstFlowReturn gst_goom_chain (GstPad * pad, GstBuffer * buffer);
static GstPadLinkReturn gst_goom_sinkconnect (GstPad * pad,
const GstCaps * caps);
static GstPadLinkReturn gst_goom_srcconnect (GstPad * pad,
const GstCaps * caps);
static GstCaps *gst_goom_src_fixate (GstPad * pad, const GstCaps * caps);
static GstPadLinkReturn gst_goom_sink_setcaps (GstPad * pad, GstCaps * caps);
static GstPadLinkReturn gst_goom_src_setcaps (GstPad * pad, GstCaps * caps);
static GstElementClass *parent_class = NULL;
@ -197,13 +193,9 @@ gst_goom_init (GstGOOM * goom)
gst_element_add_pad (GST_ELEMENT (goom), goom->sinkpad);
gst_element_add_pad (GST_ELEMENT (goom), goom->srcpad);
GST_FLAG_SET (goom, GST_ELEMENT_EVENT_AWARE);
gst_pad_set_chain_function (goom->sinkpad, gst_goom_chain);
gst_pad_set_link_function (goom->sinkpad, gst_goom_sinkconnect);
gst_pad_set_link_function (goom->srcpad, gst_goom_srcconnect);
gst_pad_set_fixate_function (goom->srcpad, gst_goom_src_fixate);
gst_pad_set_setcaps_function (goom->sinkpad, gst_goom_sink_setcaps);
gst_pad_set_setcaps_function (goom->srcpad, gst_goom_src_setcaps);
goom->adapter = gst_adapter_new ();
@ -216,8 +208,7 @@ gst_goom_init (GstGOOM * goom)
goom->samples_consumed = 0;
goom->disposed = FALSE;
/* set to something */
goom_init (50, 50);
goom_init (goom->width, goom->height);
}
static void
@ -236,28 +227,29 @@ gst_goom_dispose (GObject * object)
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static GstPadLinkReturn
gst_goom_sinkconnect (GstPad * pad, const GstCaps * caps)
static gboolean
gst_goom_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstGOOM *goom;
GstStructure *structure;
goom = GST_GOOM (gst_pad_get_parent (pad));
goom = GST_GOOM (GST_PAD_PARENT (pad));
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "channels", &goom->channels);
gst_structure_get_int (structure, "rate", &goom->sample_rate);
return GST_PAD_LINK_OK;
return TRUE;
}
static GstPadLinkReturn
gst_goom_srcconnect (GstPad * pad, const GstCaps * caps)
static gboolean
gst_goom_src_setcaps (GstPad * pad, GstCaps * caps)
{
GstGOOM *goom;
GstStructure *structure;
goom = GST_GOOM (gst_pad_get_parent (pad));
goom = GST_GOOM (GST_PAD_PARENT (pad));
structure = gst_caps_get_structure (caps, 0);
@ -266,81 +258,93 @@ gst_goom_srcconnect (GstPad * pad, const GstCaps * caps)
gst_structure_get_double (structure, "framerate", &goom->fps);
goom_set_resolution (goom->width, goom->height);
goom->srcnegotiated = TRUE;
return GST_PAD_LINK_OK;
return TRUE;
}
static GstCaps *
gst_goom_src_fixate (GstPad * pad, const GstCaps * caps)
static gboolean
gst_goom_src_negotiate (GstGOOM * goom)
{
GstCaps *newcaps;
GstCaps *othercaps, *target, *intersect;
GstStructure *structure;
const GstCaps *templ;
if (!gst_caps_is_simple (caps))
return NULL;
templ = gst_pad_get_pad_template_caps (goom->srcpad);
newcaps = gst_caps_copy (caps);
structure = gst_caps_get_structure (newcaps, 0);
/* see what the peer can do */
othercaps = gst_pad_peer_get_caps (goom->srcpad);
if (othercaps) {
intersect = gst_caps_intersect (othercaps, templ);
gst_caps_unref (othercaps);
if (gst_caps_structure_fixate_field_nearest_int (structure, "width", 320)) {
return newcaps;
}
if (gst_caps_structure_fixate_field_nearest_int (structure, "height", 240)) {
return newcaps;
}
if (gst_caps_structure_fixate_field_nearest_double (structure, "framerate",
30.0)) {
return newcaps;
if (gst_caps_is_empty (intersect))
goto no_format;
target = gst_caps_copy_nth (intersect, 0);
gst_caps_unref (intersect);
} else {
target = gst_caps_ref ((GstCaps *) templ);
}
/* failed to fixate */
gst_caps_free (newcaps);
return NULL;
structure = gst_caps_get_structure (target, 0);
gst_caps_structure_fixate_field_nearest_int (structure, "width", 320);
gst_caps_structure_fixate_field_nearest_int (structure, "height", 240);
gst_caps_structure_fixate_field_nearest_double (structure, "framerate", 30.0);
gst_pad_set_caps (goom->srcpad, target);
gst_caps_unref (target);
return TRUE;
no_format:
{
gst_caps_unref (intersect);
gst_caps_unref (othercaps);
return FALSE;
}
}
static void
gst_goom_chain (GstPad * pad, GstData * _data)
static gboolean
gst_goom_event (GstPad * pad, GstEvent * event)
{
gboolean res;
GstGOOM *goom;
goom = GST_GOOM (GST_PAD_PARENT (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_DISCONTINUOUS:
{
gint64 start = 0, stop = 0;
gst_event_discont_get_value (event, GST_FORMAT_TIME, &start, &stop);
gst_adapter_clear (goom->adapter);
goom->audio_basetime = start;
goom->samples_consumed = 0;
GST_DEBUG ("Got discont. Adjusting time to=%" G_GUINT64_FORMAT, start);
}
default:
res = gst_pad_event_default (pad, event);
break;
}
return res;
}
static GstFlowReturn
gst_goom_chain (GstPad * pad, GstBuffer * bufin)
{
GstBuffer *bufin = GST_BUFFER (_data);
GstGOOM *goom;
guint32 bytesperread;
gint16 *data;
gint samples_per_frame;
GstFlowReturn ret;
goom = GST_GOOM (gst_pad_get_parent (pad));
if (GST_IS_EVENT (bufin)) {
GstEvent *event = GST_EVENT (bufin);
goom = GST_GOOM (GST_PAD_PARENT (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_DISCONTINUOUS:
{
gint64 value = 0;
GST_STREAM_LOCK (pad);
gst_event_discont_get_value (event, GST_FORMAT_TIME, &value);
gst_adapter_clear (goom->adapter);
goom->audio_basetime = value;
goom->samples_consumed = 0;
GST_DEBUG ("Got discont. Adjusting time to=%" G_GUINT64_FORMAT, value);
}
default:
gst_pad_event_default (pad, event);
break;
}
return;
}
if (goom->channels == 0) {
GST_ELEMENT_ERROR (goom, CORE, NEGOTIATION, (NULL),
("Format wasn't negotiated before chain function"));
gst_buffer_unref (bufin);
return;
}
if (!GST_PAD_IS_USABLE (goom->srcpad)) {
gst_buffer_unref (bufin);
return;
}
if (goom->channels == 0)
goto not_negotiated;
if (goom->audio_basetime == GST_CLOCK_TIME_NONE)
goom->audio_basetime = GST_BUFFER_TIMESTAMP (bufin);
@ -358,16 +362,25 @@ gst_goom_chain (GstPad * pad, GstData * _data)
GST_BUFFER_SIZE (bufin) * sizeof (gint16) * goom->channels,
GST_BUFFER_TIMESTAMP (bufin));
ret = GST_FLOW_OK;
if (GST_RPAD_CAPS (goom->srcpad) == NULL) {
if (!gst_goom_src_negotiate (goom))
goto no_format;
}
/* Collect samples until we have enough for an output frame */
while (gst_adapter_available (goom->adapter) > MAX (bytesperread,
samples_per_frame * goom->channels * sizeof (gint16))) {
const guint16 *data =
(const guint16 *) gst_adapter_peek (goom->adapter, bytesperread);
const guint16 *data;
GstBuffer *bufout;
guchar *out_frame;
GstClockTimeDiff frame_duration = GST_SECOND / goom->fps;
GstClockTimeDiff frame_duration;
gint i;
frame_duration = GST_SECOND / goom->fps;
data = (const guint16 *) gst_adapter_peek (goom->adapter, bytesperread);
if (goom->channels == 2) {
for (i = 0; i < GOOM_SAMPLES; i++) {
goom->datain[0][i] = *data++;
@ -380,7 +393,8 @@ gst_goom_chain (GstPad * pad, GstData * _data)
}
}
bufout = gst_buffer_new_and_alloc (goom->width * goom->height * 4);
bufout = gst_pad_alloc_buffer (goom->srcpad, GST_BUFFER_OFFSET_NONE,
goom->width * goom->height * 4, GST_RPAD_CAPS (goom->srcpad));
GST_BUFFER_TIMESTAMP (bufout) =
goom->audio_basetime +
(GST_SECOND * goom->samples_consumed / goom->sample_rate);
@ -393,11 +407,35 @@ gst_goom_chain (GstPad * pad, GstData * _data)
GST_DEBUG ("Pushing frame with time=%" G_GUINT64_FORMAT ", duration=%"
G_GUINT64_FORMAT, GST_BUFFER_TIMESTAMP (bufout),
GST_BUFFER_DURATION (bufout));
gst_pad_push (goom->srcpad, GST_DATA (bufout));
ret = gst_pad_push (goom->srcpad, bufout);
goom->samples_consumed += samples_per_frame;
gst_adapter_flush (goom->adapter,
samples_per_frame * goom->channels * sizeof (gint16));
if (ret != GST_FLOW_OK)
break;
}
GST_STREAM_UNLOCK (pad);
return ret;
/* ERRORS */
not_negotiated:
{
GST_ELEMENT_ERROR (goom, CORE, NEGOTIATION, (NULL),
("Format wasn't negotiated before chain function"));
gst_buffer_unref (bufin);
GST_STREAM_UNLOCK (pad);
return GST_FLOW_NOT_NEGOTIATED;
}
no_format:
{
GST_ELEMENT_ERROR (goom, CORE, NEGOTIATION, (NULL),
("Could not negotiate format"));
gst_buffer_unref (bufin);
GST_STREAM_UNLOCK (pad);
return GST_FLOW_ERROR;
}
}
@ -405,35 +443,40 @@ static GstElementStateReturn
gst_goom_change_state (GstElement * element)
{
GstGOOM *goom = GST_GOOM (element);
gint transition;
GstElementStateReturn ret;
switch (GST_STATE_TRANSITION (element)) {
transition = GST_STATE_TRANSITION (element);
switch (transition) {
case GST_STATE_NULL_TO_READY:
break;
case GST_STATE_READY_TO_NULL:
break;
case GST_STATE_READY_TO_PAUSED:
goom->audio_basetime = GST_CLOCK_TIME_NONE;
goom->srcnegotiated = FALSE;
gst_adapter_clear (goom->adapter);
break;
case GST_STATE_PAUSED_TO_READY:
goom->channels = 0;
break;
default:
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
switch (transition) {
case GST_STATE_PAUSED_TO_READY:
break;
case GST_STATE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_library_load ("gstbytestream"))
return FALSE;
return gst_element_register (plugin, "goom", GST_RANK_NONE, GST_TYPE_GOOM);
}