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gst/audiopanorama/: die! die! die! you should never have been there
Original commit message from CVS: * gst/audiopanorama/.cvsignore: * gst/audiopanorama/Makefile.am: * gst/audiopanorama/audiofx.c: * gst/audiopanorama/audiopanorama.c: * gst/audiopanorama/audiopanorama.h: die! die! die! you should never have been there
This commit is contained in:
Stefan Kost
parent
40c2bef1c3
commit
539c398b3e
6 changed files with 9 additions and 495 deletions
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@ -1,3 +1,12 @@
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2006-08-21 Stefan Kost <ensonic@users.sf.net>
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* gst/audiopanorama/.cvsignore:
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* gst/audiopanorama/Makefile.am:
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* gst/audiopanorama/audiofx.c:
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* gst/audiopanorama/audiopanorama.c:
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* gst/audiopanorama/audiopanorama.h:
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die! die! die! you should never have been there
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2006-08-21 Jan Schmidt <thaytan@mad.scientist.com>
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2006-08-21 Jan Schmidt <thaytan@mad.scientist.com>
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* tests/check/elements/audiopanorama.c: (GST_START_TEST):
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* tests/check/elements/audiopanorama.c: (GST_START_TEST):
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6
gst/audiopanorama/.gitignore
vendored
6
gst/audiopanorama/.gitignore
vendored
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@ -1,6 +0,0 @@
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.deps
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.libs
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*.lo
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*.la
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Makefile
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Makefile.in
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@ -1,19 +0,0 @@
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# plugindir is set in configure
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plugin_LTLIBRARIES = libgstaudiofxgood.la
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# sources used to compile this plug-in
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libgstaudiofxgood_la_SOURCES = audiofx.c\
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audiopanorama.c
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# flags used to compile this plugin
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libgstaudiofxgood_la_CFLAGS = $(GST_CFLAGS) \
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$(GST_BASE_CFLAGS) \
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$(GST_CONTROLLER_CFLAGS)
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libgstaudiofxgood_la_LIBADD = $(GST_LIBS) \
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$(GST_BASE_LIBS) \
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$(GST_CONTROLLER_LIBS)
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libgstaudiofxgood_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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# headers we need but don't want installed
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noinst_HEADERS = audiopanorama.h
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@ -1,49 +0,0 @@
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/*
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* GStreamer
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* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/controller/gstcontroller.h>
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#include "audiopanorama.h"
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/* entry point to initialize the plug-in
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* initialize the plug-in itself
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* register the element factories and pad templates
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* register the features
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*/
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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/* initialize gst controller library */
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gst_controller_init (NULL, NULL);
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return gst_element_register (plugin, "audiopanorama", GST_RANK_NONE,
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GST_TYPE_AUDIO_PANORAMA);
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}
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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"audiofxgood",
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"Audio effects plugin",
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plugin_init, VERSION, "LGPL", "GStreamer", "http://gstreamer.net/")
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@ -1,365 +0,0 @@
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/*
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* GStreamer
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* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:gstaudiopanorama
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* @short_description: audio strereo pan effect
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*
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* <refsect2>
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* Echo effect with controllable effect-ratio, delay-time and feedback.
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* <title>Example launch line</title>
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* <para>
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* <programlisting>
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* gst-launch audiotestsrc wave=saw ! audiopanorama panorama=-100 ! alsasink
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* gst-launch filesrc location="melo1.ogg" ! oggdemux ! vorbisdec ! audioconvert ! audiopanorama panorama=-100 ! alsasink
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* </programlisting>
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* In the latter example the echo is applied to the input signal of the
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* soundcard (like a microphone).
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* </para>
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* </refsect2>
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*/
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/* FIXME: also support 32/64 bit float audio, and maybe 8/24 bit integer */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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#include <gst/controller/gstcontroller.h>
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#include "audiopanorama.h"
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#define GST_CAT_DEFAULT gst_audio_panorama_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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static const GstElementDetails element_details =
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GST_ELEMENT_DETAILS ("AudioPanorama",
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"Filter/Effect/Audio",
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"Positions audio streams in the stereo panorama",
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"Stefan Kost <ensonic@users.sf.net>");
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/* Filter signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_PANORAMA
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};
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw-int, "
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"rate = (int) [ 1, MAX ], "
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"channels = (int) [ 1, 2 ], "
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"endianness = (int) BYTE_ORDER, "
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"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
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);
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static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw-int, "
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"rate = (int) [ 1, MAX ], "
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"channels = (int) 2, "
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"endianness = (int) BYTE_ORDER, "
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"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
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);
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#define DEBUG_INIT(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_audio_panorama_debug, "audiopanorama", 0, "audiopanorama plugin");
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GST_BOILERPLATE_FULL (GstAudioPanorama, gst_audio_panorama, GstBaseTransform,
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GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
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static void gst_audio_panorama_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_audio_panorama_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static gboolean gst_audio_panorama_get_unit_size (GstBaseTransform * base,
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GstCaps * caps, guint * size);
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static GstCaps *gst_audio_panorama_transform_caps (GstBaseTransform * base,
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GstPadDirection direction, GstCaps * caps);
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static gboolean gst_audio_panorama_set_caps (GstBaseTransform * base,
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GstCaps * incaps, GstCaps * outcaps);
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static void gst_audio_panorama_transform_m2s (GstAudioPanorama * filter,
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gint16 * idata, gint16 * odata, guint num_samples);
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static void gst_audio_panorama_transform_s2s (GstAudioPanorama * filter,
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gint16 * idata, gint16 * odata, guint num_samples);
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static GstFlowReturn gst_audio_panorama_transform (GstBaseTransform * base,
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GstBuffer * inbuf, GstBuffer * outbuf);
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/* GObject vmethod implementations */
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static void
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gst_audio_panorama_base_init (gpointer klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sink_template));
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gst_element_class_set_details (element_class, &element_details);
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}
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static void
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gst_audio_panorama_class_init (GstAudioPanoramaClass * klass)
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{
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GObjectClass *gobject_class;
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gobject_class = (GObjectClass *) klass;
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gobject_class->set_property = gst_audio_panorama_set_property;
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gobject_class->get_property = gst_audio_panorama_get_property;
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g_object_class_install_property (gobject_class, PROP_PANORAMA,
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g_param_spec_int ("panorama", "Panorama",
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"Position in stereo panorama (-100 left -> 100 right)", -100, 100, 0,
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G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
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GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size =
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GST_DEBUG_FUNCPTR (gst_audio_panorama_get_unit_size);
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GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
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GST_DEBUG_FUNCPTR (gst_audio_panorama_transform_caps);
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GST_BASE_TRANSFORM_CLASS (klass)->set_caps =
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GST_DEBUG_FUNCPTR (gst_audio_panorama_set_caps);
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GST_BASE_TRANSFORM_CLASS (klass)->transform =
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GST_DEBUG_FUNCPTR (gst_audio_panorama_transform);
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}
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static void
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gst_audio_panorama_init (GstAudioPanorama * filter,
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GstAudioPanoramaClass * klass)
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{
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filter->panorama = 0;
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}
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static void
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gst_audio_panorama_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstAudioPanorama *filter = GST_AUDIO_PANORAMA (object);
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switch (prop_id) {
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case PROP_PANORAMA:
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filter->panorama = g_value_get_int (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_audio_panorama_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstAudioPanorama *filter = GST_AUDIO_PANORAMA (object);
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switch (prop_id) {
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case PROP_PANORAMA:
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g_value_set_int (value, filter->panorama);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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/* GstBaseTransform vmethod implementations */
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static gboolean
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gst_audio_panorama_get_unit_size (GstBaseTransform * base, GstCaps * caps,
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guint * size)
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{
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gint width, channels;
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GstStructure *structure;
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gboolean ret;
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g_assert (size);
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/* this works for both float and int */
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structure = gst_caps_get_structure (caps, 0);
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ret = gst_structure_get_int (structure, "width", &width);
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ret &= gst_structure_get_int (structure, "channels", &channels);
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*size = width * channels / 8;
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return ret;
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}
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static GstCaps *
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gst_audio_panorama_transform_caps (GstBaseTransform * base,
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GstPadDirection direction, GstCaps * caps)
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{
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GstCaps *res;
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GstStructure *structure;
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/* transform caps gives one single caps so we can just replace
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* the channel property with our range. */
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res = gst_caps_copy (caps);
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structure = gst_caps_get_structure (res, 0);
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if (direction == GST_PAD_SRC) {
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GST_INFO ("allow 1-2 channels");
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gst_structure_set (structure, "channels", GST_TYPE_INT_RANGE, 1, 2, NULL);
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} else {
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GST_INFO ("allow 2 channels");
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gst_structure_set (structure, "channels", G_TYPE_INT, 2, NULL);
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}
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return res;
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}
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static gboolean
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gst_audio_panorama_set_caps (GstBaseTransform * base, GstCaps * incaps,
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GstCaps * outcaps)
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{
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GstAudioPanorama *filter = GST_AUDIO_PANORAMA (base);
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const GstStructure *structure;
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gboolean ret;
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gint channels;
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/*GST_INFO ("incaps are %" GST_PTR_FORMAT, incaps); */
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structure = gst_caps_get_structure (incaps, 0);
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ret = gst_structure_get_int (structure, "channels", &channels);
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if (!ret)
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goto no_channels;
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/* FIXME: also check width and gst_structure_get_name()?int/float */
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GST_DEBUG ("try to process input with %d channels", channels);
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/* set processing function */
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switch (channels) {
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case 1:
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filter->process = gst_audio_panorama_transform_m2s;
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ret = TRUE;
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break;
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case 2:
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filter->process = gst_audio_panorama_transform_s2s;
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|
||||||
ret = TRUE;
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
filter->process = NULL;
|
|
||||||
ret = FALSE;
|
|
||||||
GST_WARNING ("can't process input with %d channels", channels);
|
|
||||||
}
|
|
||||||
|
|
||||||
no_channels:
|
|
||||||
GST_DEBUG ("no channels in caps");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
gst_audio_panorama_transform_m2s (GstAudioPanorama * filter, gint16 * idata,
|
|
||||||
gint16 * odata, guint num_samples)
|
|
||||||
{
|
|
||||||
guint i;
|
|
||||||
gdouble val;
|
|
||||||
glong lval, rval;
|
|
||||||
gdouble rpan, lpan;
|
|
||||||
|
|
||||||
/* pan: -100 0 100
|
|
||||||
* lpan: 1.0 0.5 0.0
|
|
||||||
* rpan: 0.0 0.5 1.0
|
|
||||||
*/
|
|
||||||
rpan = (gdouble) (filter->panorama + 100) / 200.0;
|
|
||||||
lpan = 1.0 - rpan;
|
|
||||||
|
|
||||||
for (i = 0; i < num_samples; i++) {
|
|
||||||
val = (gdouble) * idata++;
|
|
||||||
|
|
||||||
lval = (glong) (val * lpan);
|
|
||||||
rval = (glong) (val * rpan);
|
|
||||||
|
|
||||||
*odata++ = (gint16) CLAMP (lval, G_MININT16, G_MAXINT16);
|
|
||||||
*odata++ = (gint16) CLAMP (rval, G_MININT16, G_MAXINT16);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
gst_audio_panorama_transform_s2s (GstAudioPanorama * filter, gint16 * idata,
|
|
||||||
gint16 * odata, guint num_samples)
|
|
||||||
{
|
|
||||||
guint i;
|
|
||||||
glong lval, rval;
|
|
||||||
gdouble lival, rival;
|
|
||||||
gdouble lrpan, llpan, rrpan, rlpan;
|
|
||||||
|
|
||||||
/* pan: -100 0 100
|
|
||||||
* llpan: 1.0 1.0 0.0
|
|
||||||
* lrpan: 1.0 0.0 0.0
|
|
||||||
* rrpan: 0.0 1.0 1.0
|
|
||||||
* rlpan: 0.0 0.0 1.0
|
|
||||||
*/
|
|
||||||
if (filter->panorama > 0) {
|
|
||||||
rlpan = (gdouble) filter->panorama / 100.0;
|
|
||||||
llpan = 1.0 - rlpan;
|
|
||||||
lrpan = 0.0;
|
|
||||||
rrpan = 1.0;
|
|
||||||
} else {
|
|
||||||
rrpan = (gdouble) (100 + filter->panorama) / 100.0;
|
|
||||||
lrpan = 1.0 - rrpan;
|
|
||||||
rlpan = 0.0;
|
|
||||||
llpan = 1.0;
|
|
||||||
}
|
|
||||||
|
|
||||||
for (i = 0; i < num_samples; i++) {
|
|
||||||
lival = (gdouble) * idata++;
|
|
||||||
rival = (gdouble) * idata++;
|
|
||||||
|
|
||||||
lval = lival * llpan + rival * lrpan;
|
|
||||||
rval = lival * rlpan + rival * rrpan;
|
|
||||||
|
|
||||||
*odata++ = (gint16) CLAMP (lval, G_MININT16, G_MAXINT16);
|
|
||||||
*odata++ = (gint16) CLAMP (rval, G_MININT16, G_MAXINT16);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* this function does the actual processing
|
|
||||||
*/
|
|
||||||
static GstFlowReturn
|
|
||||||
gst_audio_panorama_transform (GstBaseTransform * base, GstBuffer * inbuf,
|
|
||||||
GstBuffer * outbuf)
|
|
||||||
{
|
|
||||||
GstAudioPanorama *filter = GST_AUDIO_PANORAMA (base);
|
|
||||||
guint num_samples = GST_BUFFER_SIZE (outbuf) / (2 * sizeof (gint16));
|
|
||||||
|
|
||||||
if (!gst_buffer_is_writable (outbuf))
|
|
||||||
return GST_FLOW_OK;
|
|
||||||
|
|
||||||
if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (outbuf)))
|
|
||||||
gst_object_sync_values (G_OBJECT (filter), GST_BUFFER_TIMESTAMP (outbuf));
|
|
||||||
|
|
||||||
filter->process (filter, (gint16 *) GST_BUFFER_DATA (inbuf),
|
|
||||||
(gint16 *) GST_BUFFER_DATA (outbuf), num_samples);
|
|
||||||
|
|
||||||
return GST_FLOW_OK;
|
|
||||||
}
|
|
||||||
|
|
@ -1,56 +0,0 @@
|
||||||
/*
|
|
||||||
* GStreamer
|
|
||||||
* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.net>
|
|
||||||
*
|
|
||||||
* 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., 59 Temple Place - Suite 330,
|
|
||||||
* Boston, MA 02111-1307, USA.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef __GST_AUDIO_PANORAMA_H__
|
|
||||||
#define __GST_AUDIO_PANORAMA_H__
|
|
||||||
|
|
||||||
#include <gst/gst.h>
|
|
||||||
#include <gst/base/gstbasetransform.h>
|
|
||||||
|
|
||||||
G_BEGIN_DECLS
|
|
||||||
|
|
||||||
#define GST_TYPE_AUDIO_PANORAMA (gst_audio_panorama_get_type())
|
|
||||||
#define GST_AUDIO_PANORAMA(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_PANORAMA,GstAudioPanorama))
|
|
||||||
#define GST_IS_AUDIO_PANORAMA(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_PANORAMA))
|
|
||||||
#define GST_AUDIO_PANORAMA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_PANORAMA,GstAudioPanoramaClass))
|
|
||||||
#define GST_IS_AUDIO_PANORAMA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_PANORAMA))
|
|
||||||
#define GST_AUDIO_PANORAMA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_PANORAMA,GstAudioPanoramaClass))
|
|
||||||
|
|
||||||
typedef struct _GstAudioPanorama GstAudioPanorama;
|
|
||||||
typedef struct _GstAudioPanoramaClass GstAudioPanoramaClass;
|
|
||||||
|
|
||||||
struct _GstAudioPanorama {
|
|
||||||
GstBaseTransform element;
|
|
||||||
|
|
||||||
gint panorama;
|
|
||||||
|
|
||||||
/* < private > */
|
|
||||||
void (*process)(GstAudioPanorama*, gint16*, gint16*, guint);
|
|
||||||
};
|
|
||||||
|
|
||||||
struct _GstAudioPanoramaClass {
|
|
||||||
GstBaseTransformClass parent_class;
|
|
||||||
};
|
|
||||||
|
|
||||||
GType gst_audio_panorama_get_type (void);
|
|
||||||
|
|
||||||
G_END_DECLS
|
|
||||||
|
|
||||||
#endif /* __GST_AUDIO_PANORAMA_H__ */
|
|
||||||
Loading…
Reference in a new issue