mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-09 13:48:55 +00:00
210 lines
5.6 KiB
C
210 lines
5.6 KiB
C
/* gstgoom.c: implementation of goom drawing element
|
|
* Copyright (C) <2001> Richard Boulton <richard@tartarus.org>
|
|
* (C) <2006> Wim Taymans <wim at fluendo dot com>
|
|
* (C) <2011> Wim Taymans <wim.taymans at gmail dot com>
|
|
* (C) <2015> Luis de Bethencourt <luis@debethencourt.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
/**
|
|
* SECTION:element-goom
|
|
* @title: goom
|
|
* @see_also: synaesthesia
|
|
*
|
|
* Goom is an audio visualisation element. It creates warping structures
|
|
* based on the incoming audio signal.
|
|
*
|
|
* ## Example launch line
|
|
* |[
|
|
* gst-launch-1.0 -v audiotestsrc ! goom ! videoconvert ! xvimagesink
|
|
* ]|
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <string.h>
|
|
#include "gstgoom.h"
|
|
#include "goom.h"
|
|
|
|
#if HAVE_ORC
|
|
#include <orc/orc.h>
|
|
#endif
|
|
|
|
GST_DEBUG_CATEGORY (goom_debug);
|
|
#define GST_CAT_DEFAULT goom_debug
|
|
|
|
#define DEFAULT_WIDTH 320
|
|
#define DEFAULT_HEIGHT 240
|
|
|
|
/* signals and args */
|
|
enum
|
|
{
|
|
/* FILL ME */
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
enum
|
|
{
|
|
ARG_0
|
|
/* FILL ME */
|
|
};
|
|
|
|
#if G_BYTE_ORDER == G_BIG_ENDIAN
|
|
#define RGB_ORDER "xRGB"
|
|
#else
|
|
#define RGB_ORDER "BGRx"
|
|
#endif
|
|
|
|
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
|
|
GST_PAD_SRC,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (RGB_ORDER))
|
|
);
|
|
|
|
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink", /* the name of the pads */
|
|
GST_PAD_SINK, /* type of the pad */
|
|
GST_PAD_ALWAYS, /* ALWAYS/SOMETIMES */
|
|
GST_STATIC_CAPS ("audio/x-raw, "
|
|
"format = (string) " GST_AUDIO_NE (S16) ", "
|
|
"rate = (int) [ 8000, 96000 ], "
|
|
"channels = (int) 1, "
|
|
"layout = (string) interleaved; "
|
|
"audio/x-raw, "
|
|
"format = (string) " GST_AUDIO_NE (S16) ", "
|
|
"rate = (int) [ 8000, 96000 ], "
|
|
"channels = (int) 2, "
|
|
"channel-mask = (bitmask) 0x3, " "layout = (string) interleaved")
|
|
);
|
|
|
|
|
|
static void gst_goom_finalize (GObject * object);
|
|
|
|
static gboolean gst_goom_setup (GstAudioVisualizer * base);
|
|
static gboolean gst_goom_render (GstAudioVisualizer * base, GstBuffer * audio,
|
|
GstVideoFrame * video);
|
|
|
|
G_DEFINE_TYPE (GstGoom, gst_goom, GST_TYPE_AUDIO_VISUALIZER);
|
|
|
|
static void
|
|
gst_goom_class_init (GstGoomClass * klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *gstelement_class;
|
|
GstAudioVisualizerClass *visualizer_class;
|
|
|
|
gobject_class = (GObjectClass *) klass;
|
|
gstelement_class = (GstElementClass *) klass;
|
|
visualizer_class = (GstAudioVisualizerClass *) klass;
|
|
|
|
gobject_class->finalize = gst_goom_finalize;
|
|
|
|
gst_element_class_set_static_metadata (gstelement_class, "GOOM: what a GOOM!",
|
|
"Visualization",
|
|
"Takes frames of data and outputs video frames using the GOOM filter",
|
|
"Wim Taymans <wim@fluendo.com>");
|
|
gst_element_class_add_static_pad_template (gstelement_class, &sink_template);
|
|
gst_element_class_add_static_pad_template (gstelement_class, &src_template);
|
|
|
|
visualizer_class->setup = GST_DEBUG_FUNCPTR (gst_goom_setup);
|
|
visualizer_class->render = GST_DEBUG_FUNCPTR (gst_goom_render);
|
|
}
|
|
|
|
static void
|
|
gst_goom_init (GstGoom * goom)
|
|
{
|
|
goom->width = DEFAULT_WIDTH;
|
|
goom->height = DEFAULT_HEIGHT;
|
|
goom->channels = 0;
|
|
|
|
goom->plugin = goom_init (goom->width, goom->height);
|
|
}
|
|
|
|
static void
|
|
gst_goom_finalize (GObject * object)
|
|
{
|
|
GstGoom *goom = GST_GOOM (object);
|
|
|
|
goom_close (goom->plugin);
|
|
goom->plugin = NULL;
|
|
|
|
G_OBJECT_CLASS (gst_goom_parent_class)->finalize (object);
|
|
}
|
|
|
|
static gboolean
|
|
gst_goom_setup (GstAudioVisualizer * base)
|
|
{
|
|
GstGoom *goom = GST_GOOM (base);
|
|
|
|
goom->width = GST_VIDEO_INFO_WIDTH (&base->vinfo);
|
|
goom->height = GST_VIDEO_INFO_HEIGHT (&base->vinfo);
|
|
goom_set_resolution (goom->plugin, goom->width, goom->height);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_goom_render (GstAudioVisualizer * base, GstBuffer * audio,
|
|
GstVideoFrame * video)
|
|
{
|
|
GstGoom *goom = GST_GOOM (base);
|
|
GstMapInfo amap;
|
|
gint16 datain[2][GOOM_SAMPLES];
|
|
gint16 *adata;
|
|
gint i;
|
|
|
|
/* get next GOOM_SAMPLES, we have at least this amount of samples */
|
|
gst_buffer_map (audio, &amap, GST_MAP_READ);
|
|
adata = (gint16 *) amap.data;
|
|
|
|
if (goom->channels == 2) {
|
|
for (i = 0; i < GOOM_SAMPLES; i++) {
|
|
datain[0][i] = *adata++;
|
|
datain[1][i] = *adata++;
|
|
}
|
|
} else {
|
|
for (i = 0; i < GOOM_SAMPLES; i++) {
|
|
datain[0][i] = *adata;
|
|
datain[1][i] = *adata++;
|
|
}
|
|
}
|
|
|
|
video->data[0] = goom_update (goom->plugin, datain, 0, 0);
|
|
gst_buffer_unmap (audio, &amap);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
GST_DEBUG_CATEGORY_INIT (goom_debug, "goom", 0, "goom visualisation element");
|
|
|
|
#if HAVE_ORC
|
|
orc_init ();
|
|
#endif
|
|
|
|
return gst_element_register (plugin, "goom", GST_RANK_NONE, GST_TYPE_GOOM);
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
goom,
|
|
"GOOM visualization filter",
|
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|