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monoscope: port to 0.11

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This commit is contained in:
Mark Nauwelaerts 2012-02-21 18:39:18 +01:00
parent 2d6dfd5b31
commit 8530c0f620
3 changed files with 134 additions and 115 deletions
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2
configure.ac
View file

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

246
gst/monoscope/gstmonoscope.c
View file

@ -47,70 +47,47 @@
GST_DEBUG_CATEGORY_STATIC (monoscope_debug);
#define GST_CAT_DEFAULT monoscope_debug
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
#if G_BYTE_ORDER == G_BIG_ENDIAN
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-rgb, "
"bpp = (int) 32, "
"depth = (int) 24, "
"endianness = (int) BIG_ENDIAN, "
"red_mask = (int) " GST_VIDEO_BYTE2_MASK_32 ", "
"green_mask = (int) " GST_VIDEO_BYTE3_MASK_32 ", "
"blue_mask = (int) " GST_VIDEO_BYTE4_MASK_32 ", "
"width = (int)256, "
"height = (int)128, " "framerate = " GST_VIDEO_FPS_RANGE)
);
GST_STATIC_CAPS ("video/x-raw, "
"format = (string) xRGB, "
"width = 256, " "height = 128, " "framerate = " GST_VIDEO_FPS_RANGE)
#else
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-rgb, "
"bpp = (int) 32, "
"depth = (int) 24, "
"endianness = (int) BIG_ENDIAN, "
"red_mask = (int) " GST_VIDEO_BYTE3_MASK_32 ", "
"green_mask = (int) " GST_VIDEO_BYTE2_MASK_32 ", "
"blue_mask = (int) " GST_VIDEO_BYTE1_MASK_32 ", "
"width = (int)256, "
"height = (int)128, " "framerate = " GST_VIDEO_FPS_RANGE)
);
GST_STATIC_CAPS ("video/x-raw, "
"format = (string) BGRx, "
"width = 256, " "height = 128, " "framerate = " GST_VIDEO_FPS_RANGE)
#endif
);
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_AUDIO_INT_STANDARD_PAD_TEMPLATE_CAPS)
GST_STATIC_CAPS ("audio/x-raw, "
"format = (string) " GST_AUDIO_NE (S16) ", "
"rate = (int) [ 8000, 96000 ], "
"channels = (int) 1, " "layout = (string) interleaved")
);
GST_BOILERPLATE (GstMonoscope, gst_monoscope, GstElement, GST_TYPE_ELEMENT);
#define gst_monoscope_parent_class parent_class
G_DEFINE_TYPE (GstMonoscope, gst_monoscope, GST_TYPE_ELEMENT);
static void gst_monoscope_finalize (GObject * object);
static GstFlowReturn gst_monoscope_chain (GstPad * pad, GstBuffer * buf);
static gboolean gst_monoscope_src_setcaps (GstPad * pad, GstCaps * caps);
static gboolean gst_monoscope_sink_setcaps (GstPad * pad, GstCaps * caps);
static GstFlowReturn gst_monoscope_chain (GstPad * pad, GstObject * parent,
GstBuffer * buf);
static gboolean gst_monoscope_src_setcaps (GstMonoscope * mono, GstCaps * caps);
static gboolean gst_monoscope_sink_setcaps (GstMonoscope * mono,
GstCaps * caps);
static void gst_monoscope_reset (GstMonoscope * monoscope);
static gboolean gst_monoscope_sink_event (GstPad * pad, GstEvent * event);
static gboolean gst_monoscope_src_event (GstPad * pad, GstEvent * event);
static gboolean gst_monoscope_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event);
static gboolean gst_monoscope_src_event (GstPad * pad, GstObject * parent,
GstEvent * event);
static GstStateChangeReturn gst_monoscope_change_state (GstElement * element,
GstStateChange transition);
static void
gst_monoscope_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_set_details_simple (element_class, "Monoscope",
"Visualization",
"Displays a highly stabilised waveform of audio input",
"Richard Boulton <richard@tartarus.org>");
}
static void
gst_monoscope_class_init (GstMonoscopeClass * klass)
{
@ -124,10 +101,19 @@ gst_monoscope_class_init (GstMonoscopeClass * klass)
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_monoscope_change_state);
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&src_template));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_set_details_simple (gstelement_class, "Monoscope",
"Visualization",
"Displays a highly stabilised waveform of audio input",
"Richard Boulton <richard@tartarus.org>");
}
static void
gst_monoscope_init (GstMonoscope * monoscope, GstMonoscopeClass * klass)
gst_monoscope_init (GstMonoscope * monoscope)
{
monoscope->sinkpad =
gst_pad_new_from_static_template (&sink_template, "sink");
@ -135,13 +121,9 @@ gst_monoscope_init (GstMonoscope * monoscope, GstMonoscopeClass * klass)
GST_DEBUG_FUNCPTR (gst_monoscope_chain));
gst_pad_set_event_function (monoscope->sinkpad,
GST_DEBUG_FUNCPTR (gst_monoscope_sink_event));
gst_pad_set_setcaps_function (monoscope->sinkpad,
GST_DEBUG_FUNCPTR (gst_monoscope_sink_setcaps));
gst_element_add_pad (GST_ELEMENT (monoscope), monoscope->sinkpad);
monoscope->srcpad = gst_pad_new_from_static_template (&src_template, "src");
gst_pad_set_setcaps_function (monoscope->srcpad,
GST_DEBUG_FUNCPTR (gst_monoscope_src_setcaps));
gst_pad_set_event_function (monoscope->srcpad,
GST_DEBUG_FUNCPTR (gst_monoscope_src_event));
gst_element_add_pad (GST_ELEMENT (monoscope), monoscope->srcpad);
@ -189,9 +171,8 @@ gst_monoscope_reset (GstMonoscope * monoscope)
}
static gboolean
gst_monoscope_sink_setcaps (GstPad * pad, GstCaps * caps)
gst_monoscope_sink_setcaps (GstMonoscope * monoscope, GstCaps * caps)
{
GstMonoscope *monoscope = GST_MONOSCOPE (GST_PAD_PARENT (pad));
GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
@ -203,10 +184,10 @@ gst_monoscope_sink_setcaps (GstPad * pad, GstCaps * caps)
}
static gboolean
gst_monoscope_src_setcaps (GstPad * pad, GstCaps * caps)
gst_monoscope_src_setcaps (GstMonoscope * monoscope, GstCaps * caps)
{
GstMonoscope *monoscope = GST_MONOSCOPE (GST_PAD_PARENT (pad));
GstStructure *structure;
gboolean res;
structure = gst_caps_get_structure (caps, 0);
@ -233,7 +214,9 @@ gst_monoscope_src_setcaps (GstPad * pad, GstCaps * caps)
monoscope->visstate = monoscope_init (monoscope->width, monoscope->height);
return (monoscope->visstate != NULL);
res = gst_pad_push_event (monoscope->srcpad, gst_event_new_caps (caps));
return res && (monoscope->visstate != NULL);
}
static gboolean
@ -242,13 +225,16 @@ gst_monoscope_src_negotiate (GstMonoscope * monoscope)
GstCaps *othercaps, *target;
GstStructure *structure;
const GstCaps *templ;
GstQuery *query;
GstBufferPool *pool = NULL;
guint size, min, max, prefix, alignment;
templ = gst_pad_get_pad_template_caps (monoscope->srcpad);
GST_DEBUG_OBJECT (monoscope, "performing negotiation");
/* see what the peer can do */
othercaps = gst_pad_peer_get_caps (monoscope->srcpad);
othercaps = gst_pad_peer_query_caps (monoscope->srcpad, NULL);
if (othercaps) {
target = gst_caps_intersect (othercaps, templ);
gst_caps_unref (othercaps);
@ -266,7 +252,42 @@ gst_monoscope_src_negotiate (GstMonoscope * monoscope)
gst_structure_fixate_field_nearest_int (structure, "height", 240);
gst_structure_fixate_field_nearest_fraction (structure, "framerate", 25, 1);
gst_pad_set_caps (monoscope->srcpad, target);
gst_monoscope_src_setcaps (monoscope, target);
/* try to get a bufferpool now */
/* find a pool for the negotiated caps now */
query = gst_query_new_allocation (target, TRUE);
if (gst_pad_peer_query (monoscope->srcpad, query)) {
/* we got configuration from our peer, parse them */
gst_query_parse_allocation_params (query, &size, &min, &max, &prefix,
&alignment, &pool);
} else {
size = monoscope->outsize;
min = max = 0;
prefix = 0;
alignment = 0;
}
if (pool == NULL) {
GstStructure *config;
/* we did not get a pool, make one ourselves then */
pool = gst_buffer_pool_new ();
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set (config, target, size, min, max, prefix,
alignment);
gst_buffer_pool_set_config (pool, config);
}
if (monoscope->pool)
gst_object_unref (monoscope->pool);
monoscope->pool = pool;
/* and activate */
gst_buffer_pool_set_active (pool, TRUE);
gst_caps_unref (target);
return TRUE;
@ -278,40 +299,42 @@ no_format:
}
}
/* make sure we are negotiated */
static GstFlowReturn
get_buffer (GstMonoscope * monoscope, GstBuffer ** outbuf)
ensure_negotiated (GstMonoscope * monoscope)
{
GstFlowReturn ret;
gboolean reconfigure;
if (GST_PAD_CAPS (monoscope->srcpad) == NULL) {
reconfigure = gst_pad_check_reconfigure (monoscope->srcpad);
/* we don't know an output format yet, pick one */
if (reconfigure || !gst_pad_has_current_caps (monoscope->srcpad)) {
if (!gst_monoscope_src_negotiate (monoscope))
return GST_FLOW_NOT_NEGOTIATED;
}
GST_LOG_OBJECT (monoscope, "allocating output buffer of size %d with caps %"
GST_PTR_FORMAT, monoscope->outsize, GST_PAD_CAPS (monoscope->srcpad));
ret =
gst_pad_alloc_buffer_and_set_caps (monoscope->srcpad,
GST_BUFFER_OFFSET_NONE, monoscope->outsize,
GST_PAD_CAPS (monoscope->srcpad), outbuf);
if (ret != GST_FLOW_OK)
return ret;
if (*outbuf == NULL)
return GST_FLOW_ERROR;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_monoscope_chain (GstPad * pad, GstBuffer * inbuf)
gst_monoscope_chain (GstPad * pad, GstObject * parent, GstBuffer * inbuf)
{
GstFlowReturn flow_ret = GST_FLOW_OK;
GstMonoscope *monoscope;
monoscope = GST_MONOSCOPE (GST_PAD_PARENT (pad));
monoscope = GST_MONOSCOPE (parent);
if (monoscope->rate == 0) {
gst_buffer_unref (inbuf);
flow_ret = GST_FLOW_NOT_NEGOTIATED;
goto out;
}
/* Make sure have an output format */
flow_ret = ensure_negotiated (monoscope);
if (flow_ret != GST_FLOW_OK) {
gst_buffer_unref (inbuf);
goto out;
}
/* don't try to combine samples from discont buffer */
if (GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_DISCONT)) {
@ -324,7 +347,7 @@ gst_monoscope_chain (GstPad * pad, GstBuffer * inbuf)
monoscope->next_ts = GST_BUFFER_TIMESTAMP (inbuf);
GST_LOG_OBJECT (monoscope, "in buffer has %d samples, ts=%" GST_TIME_FORMAT,
GST_BUFFER_SIZE (inbuf) / monoscope->bps,
gst_buffer_get_size (inbuf) / monoscope->bps,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (inbuf)));
gst_adapter_push (monoscope->adapter, inbuf);
@ -339,15 +362,6 @@ gst_monoscope_chain (GstPad * pad, GstBuffer * inbuf)
avail = gst_adapter_available (monoscope->adapter);
GST_LOG_OBJECT (monoscope, "bytes avail now %u", avail);
/* do negotiation if not done yet, so ->spf etc. is set */
if (GST_PAD_CAPS (monoscope->srcpad) == NULL) {
flow_ret = get_buffer (monoscope, &outbuf);
if (flow_ret != GST_FLOW_OK)
goto out;
gst_buffer_unref (outbuf);
outbuf = NULL;
}
bytesperframe = monoscope->spf * monoscope->bps;
if (avail < bytesperframe)
break;
@ -378,7 +392,7 @@ gst_monoscope_chain (GstPad * pad, GstBuffer * inbuf)
}
#endif
samples = (gint16 *) gst_adapter_peek (monoscope->adapter, bytesperframe);
samples = (gint16 *) gst_adapter_map (monoscope->adapter, bytesperframe);
if (monoscope->spf < 512) {
gint16 in_data[512], i;
@ -395,11 +409,14 @@ gst_monoscope_chain (GstPad * pad, GstBuffer * inbuf)
pixels = monoscope_update (monoscope->visstate, samples);
}
flow_ret = get_buffer (monoscope, &outbuf);
if (flow_ret != GST_FLOW_OK)
GST_LOG_OBJECT (monoscope, "allocating output buffer");
flow_ret = gst_buffer_pool_acquire_buffer (monoscope->pool, &outbuf, NULL);
if (flow_ret != GST_FLOW_OK) {
gst_adapter_unmap (monoscope->adapter);
goto out;
}
memcpy (GST_BUFFER_DATA (outbuf), pixels, monoscope->outsize);
gst_buffer_fill (outbuf, 0, pixels, monoscope->outsize);
GST_BUFFER_TIMESTAMP (outbuf) = monoscope->next_ts;
GST_BUFFER_DURATION (outbuf) = monoscope->frame_duration;
@ -422,12 +439,12 @@ out:
}
static gboolean
gst_monoscope_sink_event (GstPad * pad, GstEvent * event)
gst_monoscope_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstMonoscope *monoscope;
gboolean res;
monoscope = GST_MONOSCOPE (gst_pad_get_parent (pad));
monoscope = GST_MONOSCOPE (parent);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
@ -437,43 +454,41 @@ gst_monoscope_sink_event (GstPad * pad, GstEvent * event)
gst_monoscope_reset (monoscope);
res = gst_pad_push_event (monoscope->srcpad, event);
break;
case GST_EVENT_NEWSEGMENT:
case GST_EVENT_SEGMENT:
{
GstFormat format;
gdouble rate, arate;
gint64 start, stop, time;
gboolean update;
/* the newsegment values are used to clip the input samples
* and to convert the incomming timestamps to running time so
* we can do QoS */
gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
&start, &stop, &time);
/* now configure the values */
gst_segment_set_newsegment_full (&monoscope->segment, update,
rate, arate, format, start, stop, time);
gst_event_copy_segment (event, &monoscope->segment);
res = gst_pad_push_event (monoscope->srcpad, event);
break;
}
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
gst_monoscope_sink_setcaps (monoscope, caps);
gst_event_unref (event);
res = TRUE;
break;
}
default:
res = gst_pad_push_event (monoscope->srcpad, event);
break;
}
gst_object_unref (monoscope);
return res;
}
static gboolean
gst_monoscope_src_event (GstPad * pad, GstEvent * event)
gst_monoscope_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstMonoscope *monoscope;
gboolean res;
monoscope = GST_MONOSCOPE (gst_pad_get_parent (pad));
monoscope = GST_MONOSCOPE (parent);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_QOS:{
@ -481,7 +496,7 @@ gst_monoscope_src_event (GstPad * pad, GstEvent * event)
GstClockTimeDiff diff;
GstClockTime timestamp;
gst_event_parse_qos (event, &proportion, &diff, &timestamp);
gst_event_parse_qos (event, NULL, &proportion, &diff, &timestamp);
/* save stuff for the _chain() function */
GST_OBJECT_LOCK (monoscope);
@ -502,7 +517,6 @@ gst_monoscope_src_event (GstPad * pad, GstEvent * event)
res = gst_pad_push_event (monoscope->sinkpad, event);
break;
}
gst_object_unref (monoscope);
return res;
}
@ -527,6 +541,10 @@ gst_monoscope_change_state (GstElement * element, GstStateChange transition)
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (monoscope->pool) {
gst_buffer_pool_set_active (monoscope->pool, FALSE);
gst_object_replace ((GstObject **) & monoscope->pool, NULL);
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;

1
gst/monoscope/gstmonoscope.h
View file

@ -51,6 +51,7 @@ struct _GstMonoscope
gint rate; /* sample rate */
guint bps; /* bytes per sample */
guint spf; /* samples per video frame */
GstBufferPool *pool;
GstSegment segment;