Commit 3ff8660a authored by Tim-Philipp Müller's avatar Tim-Philipp Müller 🐠
Browse files

Port monoscope visualisation to 0.10.

Original commit message from CVS:
* configure.ac:
* gst/monoscope/Makefile.am:
* gst/monoscope/gstmonoscope.c: (gst_monoscope_base_init),
(gst_monoscope_class_init), (gst_monoscope_init),
(gst_monoscope_finalize), (gst_monoscope_reset),
(gst_monoscope_sink_setcaps), (gst_monoscope_src_setcaps),
(gst_monoscope_src_negotiate), (get_buffer), (gst_monoscope_chain),
(gst_monoscope_sink_event), (gst_monoscope_src_event),
(gst_monoscope_change_state), (plugin_init):
* gst/monoscope/gstmonoscope.h:
Port monoscope visualisation to 0.10.
parent 5130c720
2006-07-03 Tim-Philipp Müller <tim at centricular dot net>
* configure.ac:
* gst/monoscope/Makefile.am:
* gst/monoscope/gstmonoscope.c: (gst_monoscope_base_init),
(gst_monoscope_class_init), (gst_monoscope_init),
(gst_monoscope_finalize), (gst_monoscope_reset),
(gst_monoscope_sink_setcaps), (gst_monoscope_src_setcaps),
(gst_monoscope_src_negotiate), (get_buffer), (gst_monoscope_chain),
(gst_monoscope_sink_event), (gst_monoscope_src_event),
(gst_monoscope_change_state), (plugin_init):
* gst/monoscope/gstmonoscope.h:
Port monoscope visualisation to 0.10.
2006-07-03 Tim-Philipp Müller <tim at centricular dot net>
* gst/apetag/gsttagdemux.c: (gst_tag_demux_chain):
......
......@@ -87,12 +87,13 @@ GST_PLUGINS_ALL="\
debug \
effectv \
id3demux \
icydemux \
icydemux \
flx \
goom \
law \
level \
matroska \
monoscope \
multipart \
rtp \
rtsp \
......@@ -765,6 +766,7 @@ gst/goom/Makefile
gst/law/Makefile
gst/level/Makefile
gst/matroska/Makefile
gst/monoscope/Makefile
gst/multipart/Makefile
gst/rtp/Makefile
gst/rtsp/Makefile
......
......@@ -2,8 +2,8 @@ plugin_LTLIBRARIES = libgstmonoscope.la
libgstmonoscope_la_SOURCES = gstmonoscope.c monoscope.c convolve.c
noinst_HEADERS = monoscope.h convolve.h
noinst_HEADERS = gstmonoscope.h monoscope.h convolve.h
libgstmonoscope_la_CFLAGS = $(GST_CFLAGS)
libgstmonoscope_la_LIBADD = $(GST_LIBS)
libgstmonoscope_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS)
libgstmonoscope_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS)
libgstmonoscope_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
/* gstmonoscope.c: implementation of monoscope drawing element
* Copyright (C) <2002> Richard Boulton <richard@tartarus.org>
* Copyright (C) <2006> Tim-Philipp Müller <tim centricular net>
* Copyright (C) <2006> Wim Taymans <wim at fluendo dot com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
......@@ -17,57 +19,33 @@
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:element-monoscope
* @see_also: monoscope
*
* <refsect2>
* <title>Example launch line</title>
* <para>
* <programlisting>
* gst-launch -v audiotestsrc ! audioconvert ! monoscope ! ffmpegcolorspace ! ximagesink
* </programlisting>
* </para>
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/audio/audio.h>
#include <string.h>
#include "gstmonoscope.h"
#include "monoscope.h"
GST_DEBUG_CATEGORY (monoscope_debug);
GST_DEBUG_CATEGORY_STATIC (monoscope_debug);
#define GST_CAT_DEFAULT monoscope_debug
#define GST_TYPE_MONOSCOPE (gst_monoscope_get_type())
#define GST_MONOSCOPE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MONOSCOPE,GstMonoscope))
#define GST_MONOSCOPE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MONOSCOPE,GstMonoscope))
#define GST_IS_MONOSCOPE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MONOSCOPE))
#define GST_IS_MONOSCOPE_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MONOSCOPE))
typedef struct _GstMonoscope GstMonoscope;
typedef struct _GstMonoscopeClass GstMonoscopeClass;
struct _GstMonoscope
{
GstElement element;
/* pads */
GstPad *sinkpad, *srcpad;
/* the timestamp of the next frame */
guint64 next_time;
gint16 datain[512];
/* video state */
gdouble fps;
gint width;
gint height;
gboolean first_buffer;
/* visualisation state */
struct monoscope_state *visstate;
};
struct _GstMonoscopeClass
{
GstElementClass parent_class;
};
GType gst_monoscope_get_type (void);
/* elementfactory information */
static const GstElementDetails gst_monoscope_details =
GST_ELEMENT_DETAILS ("Monoscope",
......@@ -75,19 +53,6 @@ GST_ELEMENT_DETAILS ("Monoscope",
"Displays a highly stabilised waveform of audio input",
"Richard Boulton <richard@tartarus.org>");
/* signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0
/* FILL ME */
};
#if G_BYTE_ORDER == G_BIG_ENDIAN
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
......@@ -125,42 +90,20 @@ static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
);
static void gst_monoscope_class_init (GstMonoscopeClass * klass);
static void gst_monoscope_base_init (GstMonoscopeClass * klass);
static void gst_monoscope_init (GstMonoscope * monoscope);
static void gst_monoscope_chain (GstPad * pad, GstData * _data);
static GstPadLinkReturn
gst_monoscope_srcconnect (GstPad * pad, const GstCaps * caps);
GST_BOILERPLATE (GstMonoscope, gst_monoscope, GstElement, GST_TYPE_ELEMENT);
static GstElementClass *parent_class = NULL;
GType
gst_monoscope_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo info = {
sizeof (GstMonoscopeClass),
(GBaseInitFunc) gst_monoscope_base_init,
NULL,
(GClassInitFunc) gst_monoscope_class_init,
NULL,
NULL,
sizeof (GstMonoscope),
0,
(GInstanceInitFunc) gst_monoscope_init,
};
type = g_type_register_static (GST_TYPE_ELEMENT, "GstMonoscope", &info, 0);
}
return type;
}
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 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 GstStateChangeReturn gst_monoscope_change_state (GstElement * element,
GstStateChange transition);
static void
gst_monoscope_base_init (GstMonoscopeClass * klass)
gst_monoscope_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
......@@ -180,122 +123,434 @@ gst_monoscope_class_init (GstMonoscopeClass * klass)
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = gst_monoscope_finalize;
GST_DEBUG_CATEGORY_INIT (monoscope_debug, "monoscope", 0,
"monoscope element");
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_monoscope_change_state);
}
static void
gst_monoscope_init (GstMonoscope * monoscope)
gst_monoscope_init (GstMonoscope * monoscope, GstMonoscopeClass * klass)
{
/* create the sink and src pads */
monoscope->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
"sink");
monoscope->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
"src");
gst_pad_new_from_static_template (&sink_template, "sink");
gst_pad_set_chain_function (monoscope->sinkpad,
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);
gst_element_add_pad (GST_ELEMENT (monoscope), monoscope->srcpad);
gst_pad_set_chain_function (monoscope->sinkpad, gst_monoscope_chain);
gst_pad_set_link_function (monoscope->srcpad, gst_monoscope_srcconnect);
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);
monoscope->next_time = 0;
monoscope->adapter = gst_adapter_new ();
monoscope->next_ts = GST_CLOCK_TIME_NONE;
monoscope->bps = sizeof (gint16);
/* reset the initial video state */
monoscope->first_buffer = TRUE;
monoscope->width = 256;
monoscope->height = 128;
monoscope->fps = 25.; /* desired frame rate */
monoscope->fps_num = 25; /* desired frame rate */
monoscope->fps_denom = 1;
monoscope->visstate = NULL;
}
static void
gst_monoscope_finalize (GObject * object)
{
GstMonoscope *monoscope = GST_MONOSCOPE (object);
if (monoscope->visstate)
monoscope_close (monoscope->visstate);
g_object_unref (monoscope->adapter);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_monoscope_reset (GstMonoscope * monoscope)
{
monoscope->next_ts = GST_CLOCK_TIME_NONE;
gst_adapter_clear (monoscope->adapter);
gst_segment_init (&monoscope->segment, GST_FORMAT_UNDEFINED);
GST_OBJECT_LOCK (monoscope);
monoscope->proportion = 1.0;
monoscope->earliest_time = -1;
GST_OBJECT_UNLOCK (monoscope);
}
static gboolean
gst_monoscope_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstMonoscope *monoscope = GST_MONOSCOPE (GST_PAD_PARENT (pad));
GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "rate", &monoscope->rate);
GST_DEBUG_OBJECT (monoscope, "sample rate = %d", monoscope->rate);
return TRUE;
}
static GstPadLinkReturn
gst_monoscope_srcconnect (GstPad * pad, const GstCaps * caps)
static gboolean
gst_monoscope_src_setcaps (GstPad * pad, GstCaps * caps)
{
GstMonoscope *monoscope = GST_MONOSCOPE (gst_pad_get_parent (pad));
GstMonoscope *monoscope = GST_MONOSCOPE (GST_PAD_PARENT (pad));
GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "width", &monoscope->width);
gst_structure_get_int (structure, "height", &monoscope->height);
gst_structure_get_double (structure, "framerate", &monoscope->fps);
gst_structure_get_fraction (structure, "framerate", &monoscope->fps_num,
&monoscope->fps_denom);
monoscope->outsize = monoscope->width * monoscope->height * 4;
monoscope->frame_duration = gst_util_uint64_scale_int (GST_SECOND,
monoscope->fps_denom, monoscope->fps_num);
monoscope->spf =
gst_util_uint64_scale_int (monoscope->rate, monoscope->fps_denom,
monoscope->fps_num);
GST_DEBUG_OBJECT (monoscope, "dimension %dx%d, framerate %d/%d, spf %d",
monoscope->width, monoscope->height, monoscope->fps_num,
monoscope->fps_denom, monoscope->spf);
if (monoscope->visstate) {
monoscope_close (monoscope->visstate);
monoscope->visstate = NULL;
}
gst_object_unref (monoscope);
monoscope->visstate = monoscope_init (monoscope->width, monoscope->height);
return GST_PAD_LINK_OK;
return (monoscope->visstate != NULL);
}
static void
gst_monoscope_chain (GstPad * pad, GstData * _data)
static gboolean
gst_monoscope_src_negotiate (GstMonoscope * monoscope)
{
GstBuffer *bufin = GST_BUFFER (_data);
GstMonoscope *monoscope;
GstBuffer *bufout;
guint32 samples_in;
gint16 *data;
gint i;
GstCaps *othercaps, *target, *intersect;
GstStructure *structure;
const GstCaps *templ;
monoscope = GST_MONOSCOPE (gst_pad_get_parent (pad));
templ = gst_pad_get_pad_template_caps (monoscope->srcpad);
GST_DEBUG ("Monoscope: chainfunc called");
GST_DEBUG_OBJECT (monoscope, "performing negotiation");
samples_in = GST_BUFFER_SIZE (bufin) / sizeof (gint16);
/* see what the peer can do */
othercaps = gst_pad_peer_get_caps (monoscope->srcpad);
if (othercaps) {
intersect = gst_caps_intersect (othercaps, templ);
gst_caps_unref (othercaps);
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);
}
structure = gst_caps_get_structure (target, 0);
gst_structure_fixate_field_nearest_int (structure, "width", 320);
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_caps_unref (target);
return TRUE;
no_format:
{
gst_caps_unref (intersect);
return FALSE;
}
}
GST_DEBUG ("input buffer has %d samples", samples_in);
static GstFlowReturn
get_buffer (GstMonoscope * monoscope, GstBuffer ** outbuf)
{
GstFlowReturn ret;
/* FIXME: should really select the first 1024 samples after the timestamp. */
if (GST_BUFFER_TIMESTAMP (bufin) < monoscope->next_time || samples_in < 1024) {
GST_DEBUG ("timestamp is %" G_GUINT64_FORMAT ": want >= %" G_GUINT64_FORMAT,
GST_BUFFER_TIMESTAMP (bufin), monoscope->next_time);
gst_buffer_unref (bufin);
gst_object_unref (monoscope);
return;
if (GST_PAD_CAPS (monoscope->srcpad) == NULL) {
if (!gst_monoscope_src_negotiate (monoscope))
return GST_FLOW_NOT_NEGOTIATED;
}
data = (gint16 *) GST_BUFFER_DATA (bufin);
/* FIXME: Select samples in a better way. */
for (i = 0; i < 512; i++) {
monoscope->datain[i] = *data++;
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)
{
GstMonoscope *monoscope;
GstFlowReturn flow_ret;
monoscope = GST_MONOSCOPE (GST_PAD_PARENT (pad));
/* don't try to combine samples from discont buffer */
if (GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_DISCONT)) {
gst_adapter_clear (monoscope->adapter);
monoscope->next_ts = GST_CLOCK_TIME_NONE;
}
if (monoscope->first_buffer) {
monoscope->visstate = monoscope_init (monoscope->width, monoscope->height);
g_assert (monoscope->visstate != 0);
GST_DEBUG ("making new pad");
if (!gst_pad_is_negotiated (monoscope->srcpad)) {
if (gst_pad_renegotiate (monoscope->srcpad) <= 0) {
GST_ELEMENT_ERROR (monoscope, CORE, NEGOTIATION, (NULL), (NULL));
gst_object_unref (monoscope);
return;
/* Match timestamps from the incoming audio */
if (GST_BUFFER_TIMESTAMP (inbuf) != GST_CLOCK_TIME_NONE)
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_TIME_ARGS (GST_BUFFER_TIMESTAMP (inbuf)));
gst_adapter_push (monoscope->adapter, inbuf);
inbuf = NULL;
flow_ret = GST_FLOW_OK;
/* Collect samples until we have enough for an output frame */
while (flow_ret == GST_FLOW_OK) {
gint16 *samples;
GstBuffer *outbuf = NULL;
guint32 *pixels, avail, bytesperframe;
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) {
gst_buffer_unref (inbuf);
goto out;
}
gst_buffer_unref (outbuf);
outbuf = NULL;
}
bytesperframe = monoscope->spf * monoscope->bps;
if (avail < bytesperframe)
break;
/* FIXME: something is wrong with QoS, we are skipping way too much
* stuff even with very low CPU loads */
#if 0
if (monoscope->next_ts != -1) {
gboolean need_skip;
gint64 qostime;
qostime = gst_segment_to_running_time (&monoscope->segment,
GST_FORMAT_TIME, monoscope->next_ts);
GST_OBJECT_LOCK (monoscope);
/* check for QoS, don't compute buffers that are known to be late */
need_skip =
GST_CLOCK_TIME_IS_VALID (monoscope->earliest_time) &&
qostime <= monoscope->earliest_time;
GST_OBJECT_UNLOCK (monoscope);
if (need_skip) {
GST_WARNING_OBJECT (monoscope,
"QoS: skip ts: %" GST_TIME_FORMAT ", earliest: %" GST_TIME_FORMAT,
GST_TIME_ARGS (qostime), GST_TIME_ARGS (monoscope->earliest_time));
goto skip;
}
}
#endif
samples = (gint16 *) gst_adapter_peek (monoscope->adapter, bytesperframe);
if (monoscope->spf < 512) {
gint16 in_data[512], i;
for (i = 0; i < 512; ++i) {
gdouble off;
off = ((gdouble) i * (gdouble) monoscope->spf) / 512.0;
in_data[i] = samples[MIN ((guint) off, monoscope->spf)];
}
pixels = monoscope_update (monoscope->visstate, in_data);
} else {
/* not really correct, but looks much prettier */
pixels = monoscope_update (monoscope->visstate, samples);
}
flow_ret = get_buffer (monoscope, &outbuf);
if (flow_ret != GST_FLOW_OK) {
gst_buffer_unref (inbuf);
goto out;
}
memcpy (GST_BUFFER_DATA (outbuf), pixels, monoscope->outsize);
GST_BUFFER_TIMESTAMP (outbuf) = monoscope->next_ts;
GST_BUFFER_DURATION (outbuf) = monoscope->frame_duration;
flow_ret = gst_pad_push (monoscope->srcpad, outbuf);
#if 0
skip:
#endif
if (GST_CLOCK_TIME_IS_VALID (monoscope->next_ts))
monoscope->next_ts += monoscope->frame_duration;
gst_adapter_flush (monoscope->adapter, bytesperframe);
}
out:
return flow_ret;
}
static gboolean
gst_monoscope_sink_event (GstPad * pad, GstEvent * event)
{
GstMonoscope *monoscope;
gboolean res;
monoscope = GST_MONOSCOPE (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
res = gst_pad_push_event (monoscope->srcpad, event);
break;
case GST_EVENT_FLUSH_STOP:
gst_monoscope_reset (monoscope);
res = gst_pad_push_event (monoscope->srcpad, event);
break;
case GST_EVENT_NEWSEGMENT:
{
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);
res = gst_pad_push_event (monoscope->srcpad, event);
break;
}
monoscope->first_buffer = FALSE;
default:
res = gst_pad_push_event (monoscope->srcpad, event);
break;
}
bufout = gst_buffer_new ();
GST_BUFFER_SIZE (bufout) = monoscope->width * monoscope->height * 4;
GST_BUFFER_DATA (bufout) =
(guchar *) monoscope_update (monoscope->visstate, monoscope->datain);