gstreamer/gst/passthrough/gstpassthrough.c
Stefan Kost bf3fd4f95d Define GstElementDetails as const and also static (when defined as global)
Original commit message from CVS:
* ext/amrwb/gstamrwbdec.c:
* ext/amrwb/gstamrwbenc.c:
* ext/amrwb/gstamrwbparse.c:
* ext/arts/gst_arts.c:
* ext/artsd/gstartsdsink.c:
* ext/audiofile/gstafparse.c:
* ext/audiofile/gstafsink.c:
* ext/audiofile/gstafsrc.c:
* ext/audioresample/gstaudioresample.c:
* ext/bz2/gstbz2dec.c:
* ext/bz2/gstbz2enc.c:
* ext/cdaudio/gstcdaudio.c:
* ext/directfb/dfbvideosink.c:
* ext/divx/gstdivxdec.c:
* ext/divx/gstdivxenc.c:
* ext/dts/gstdtsdec.c: (gst_dtsdec_base_init):
* ext/faac/gstfaac.c: (gst_faac_base_init):
* ext/faad/gstfaad.c:
* ext/gsm/gstgsmdec.c:
* ext/gsm/gstgsmenc.c:
* ext/hermes/gsthermescolorspace.c:
* ext/ivorbis/vorbisfile.c:
* ext/lcs/gstcolorspace.c:
* ext/libfame/gstlibfame.c:
* ext/libmms/gstmms.c: (gst_mms_base_init):
* ext/musepack/gstmusepackdec.c: (gst_musepackdec_base_init):
* ext/musicbrainz/gsttrm.c: (gst_musicbrainz_base_init):
* ext/nas/nassink.c: (gst_nassink_base_init):
* ext/neon/gstneonhttpsrc.c:
* ext/sdl/sdlaudiosink.c:
* ext/sdl/sdlvideosink.c:
* ext/shout/gstshout.c:
* ext/snapshot/gstsnapshot.c:
* ext/sndfile/gstsf.c:
* ext/swfdec/gstswfdec.c:
* ext/tarkin/gsttarkindec.c:
* ext/tarkin/gsttarkinenc.c:
* ext/theora/theoradec.c:
* ext/wavpack/gstwavpackdec.c: (gst_wavpack_dec_base_init):
* ext/wavpack/gstwavpackparse.c: (gst_wavpack_parse_base_init):
* ext/xvid/gstxviddec.c:
* ext/xvid/gstxvidenc.c:
* gst/cdxaparse/gstcdxaparse.c: (gst_cdxa_parse_base_init):
* gst/cdxaparse/gstcdxastrip.c: (gst_cdxastrip_base_init):
* gst/chart/gstchart.c:
* gst/colorspace/gstcolorspace.c:
* gst/deinterlace/gstdeinterlace.c:
* gst/equalizer/gstiirequalizer.c: (gst_iir_equalizer_base_init):
* gst/festival/gstfestival.c:
* gst/filter/gstbpwsinc.c:
* gst/filter/gstiir.c:
* gst/filter/gstlpwsinc.c:
* gst/freeze/gstfreeze.c:
* gst/games/gstpuzzle.c: (gst_puzzle_base_init):
* gst/librfb/gstrfbsrc.c:
* gst/mixmatrix/mixmatrix.c:
* gst/mpeg1sys/gstmpeg1systemencode.c:
* gst/mpeg1videoparse/gstmp1videoparse.c:
* gst/mpeg2sub/gstmpeg2subt.c:
* gst/mpegaudioparse/gstmpegaudioparse.c:
* gst/multifilesink/gstmultifilesink.c:
* gst/overlay/gstoverlay.c:
* gst/passthrough/gstpassthrough.c:
* gst/playondemand/gstplayondemand.c:
* gst/qtdemux/qtdemux.c:
* gst/rtjpeg/gstrtjpegdec.c:
* gst/rtjpeg/gstrtjpegenc.c:
* gst/smooth/gstsmooth.c:
* gst/smoothwave/gstsmoothwave.c:
* gst/spectrum/gstspectrum.c:
* gst/speed/gstspeed.c:
* gst/stereo/gststereo.c:
* gst/switch/gstswitch.c:
* gst/tta/gstttadec.c: (gst_tta_dec_base_init):
* gst/tta/gstttaparse.c: (gst_tta_parse_base_init):
* gst/vbidec/gstvbidec.c:
* gst/videocrop/gstvideocrop.c:
* gst/videodrop/gstvideodrop.c:
* gst/virtualdub/gstxsharpen.c:
* gst/xingheader/gstxingmux.c: (gst_xing_mux_base_init):
* gst/y4m/gsty4mencode.c:
* sys/cdrom/gstcdplayer.c:
* sys/directdraw/gstdirectdrawsink.c:
* sys/directsound/gstdirectsoundsink.c:
* sys/glsink/glimagesink.c:
* sys/qcam/gstqcamsrc.c:
* sys/v4l2/gstv4l2src.c:
* sys/vcd/vcdsrc.c: (gst_vcdsrc_base_init):
* sys/ximagesrc/ximagesrc.c:
Define GstElementDetails as const and also static (when defined as
global)
2006-04-25 21:56:38 +00:00

310 lines
9.2 KiB
C

/* -*- c-basic-offset: 2 -*-
* GStreamer
* Copyright (C) 1999-2001 Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <gst/gst.h>
#include <gst/audio/audio.h>
#include "gstpassthrough.h"
#define PASSTHRU_BUF_SIZE 4096
#define PASSTHRU_NUM_BUFS 4
/* elementfactory information */
static const GstElementDetails passthrough_details =
GST_ELEMENT_DETAILS ("Passthrough",
"Filter/Effect/Audio",
"Transparent filter for audio/raw (boilerplate for effects)",
"Thomas <thomas@apestaart.org>, " "Andy Wingo <apwingo@eos.ncsu.edu>");
enum
{
/* FILL ME */
LAST_SIGNAL
};
/* static guint gst_filter_signals[LAST_SIGNAL] = { 0 }; */
enum
{
ARG_0,
ARG_SILENT
};
static GstStaticPadTemplate passthrough_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_AUDIO_INT_PAD_TEMPLATE_CAPS "; "
GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS)
);
static GstStaticPadTemplate passthrough_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_AUDIO_INT_PAD_TEMPLATE_CAPS "; "
GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS)
);
static void passthrough_class_init (GstPassthroughClass * klass);
static void passthrough_base_init (GstPassthroughClass * klass);
static void passthrough_init (GstPassthrough * filter);
static void passthrough_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void passthrough_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstPadLinkReturn passthrough_connect_sink (GstPad * pad,
const GstCaps * caps);
static void passthrough_chain (GstPad * pad, GstData * _data);
static void inline passthrough_fast_float_chain (gfloat * data,
guint numsamples);
static void inline passthrough_fast_16bit_chain (gint16 * data,
guint numsamples);
static void inline passthrough_fast_8bit_chain (gint8 * data, guint numsamples);
static GstElementClass *parent_class = NULL;
static GstPadLinkReturn
passthrough_connect_sink (GstPad * pad, const GstCaps * caps)
{
const gchar *mimetype;
GstPassthrough *filter;
GstStructure *structure;
g_return_val_if_fail (pad != NULL, GST_PAD_LINK_DELAYED);
g_return_val_if_fail (caps != NULL, GST_PAD_LINK_DELAYED);
filter = GST_PASSTHROUGH (gst_pad_get_parent (pad));
g_return_val_if_fail (filter != NULL, GST_PAD_LINK_REFUSED);
g_return_val_if_fail (GST_IS_PASSTHROUGH (filter), GST_PAD_LINK_REFUSED);
structure = gst_caps_get_structure (caps, 0);
mimetype = gst_structure_get_name (structure);
gst_structure_get_int (structure, "rate", &filter->rate);
gst_structure_get_int (structure, "channels", &filter->channels);
gst_structure_get_int (structure, "width", &filter->width);
gst_structure_get_int (structure, "endianness", &filter->endianness);
if (strcmp (mimetype, "audio/x-raw-int") == 0) {
filter->format = GST_PASSTHROUGH_FORMAT_INT;
gst_structure_get_int (structure, "depth", &filter->depth);
gst_structure_get_boolean (structure, "signed", &filter->is_signed);
if (!filter->silent) {
g_print ("Passthrough : channels %d, rate %d\n", filter->channels,
filter->rate);
g_print
("Passthrough : format int, bit width %d, endianness %d, signed %s\n",
filter->width, filter->endianness, filter->is_signed ? "yes" : "no");
}
} else if (strcmp (mimetype, "audio/x-raw-float") == 0) {
filter->format = GST_PASSTHROUGH_FORMAT_FLOAT;
if (!filter->silent) {
g_print ("Passthrough : channels %d, rate %d\n", filter->channels,
filter->rate);
g_print ("Passthrough : format float, width %d\n", filter->width);
}
}
return gst_pad_try_set_caps (filter->srcpad, caps);
}
GType
gst_passthrough_get_type (void)
{
static GType passthrough_type = 0;
if (!passthrough_type) {
static const GTypeInfo passthrough_info = {
sizeof (GstPassthroughClass),
(GBaseInitFunc) passthrough_base_init,
NULL,
(GClassInitFunc) passthrough_class_init,
NULL,
NULL,
sizeof (GstPassthrough),
0,
(GInstanceInitFunc) passthrough_init,
};
passthrough_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstPassthrough",
&passthrough_info, 0);
}
return passthrough_type;
}
static void
passthrough_base_init (GstPassthroughClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&passthrough_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&passthrough_sink_template));
gst_element_class_set_details (element_class, &passthrough_details);
}
static void
passthrough_class_init (GstPassthroughClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_peek_parent (klass);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SILENT, g_param_spec_boolean ("silent", "silent", "silent", TRUE, G_PARAM_READWRITE)); /* CHECKME */
gobject_class->set_property = passthrough_set_property;
gobject_class->get_property = passthrough_get_property;
}
static void
passthrough_init (GstPassthrough * filter)
{
filter->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&passthrough_src_template), "src");
gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
filter->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&passthrough_sink_template), "sink");
gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
gst_pad_set_link_function (filter->sinkpad, passthrough_connect_sink);
gst_pad_set_chain_function (filter->sinkpad, passthrough_chain);
filter->silent = FALSE;
}
static void
passthrough_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstPassthrough *filter;
gint16 *int_data;
gfloat *float_data;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
filter = GST_PASSTHROUGH (gst_pad_get_parent (pad));
g_return_if_fail (filter != NULL);
g_return_if_fail (GST_IS_PASSTHROUGH (filter));
switch (filter->format) {
case GST_PASSTHROUGH_FORMAT_INT:
int_data = (gint16 *) GST_BUFFER_DATA (buf);
switch (filter->width) {
case 16:
passthrough_fast_16bit_chain (int_data, GST_BUFFER_SIZE (buf) / 2);
break;
case 8:
passthrough_fast_8bit_chain ((gint8 *) int_data,
GST_BUFFER_SIZE (buf));
break;
}
break;
case GST_PASSTHROUGH_FORMAT_FLOAT:
float_data = (gfloat *) GST_BUFFER_DATA (buf);
passthrough_fast_float_chain (float_data,
GST_BUFFER_SIZE (buf) / sizeof (gfloat));
break;
}
gst_pad_push (filter->srcpad, GST_DATA (buf));
}
static void inline
passthrough_fast_float_chain (gfloat * data, guint num_samples)
#include "filter.func"
static void inline
passthrough_fast_16bit_chain (gint16 * data, guint num_samples)
#include "filter.func"
static void inline
passthrough_fast_8bit_chain (gint8 * data, guint num_samples)
#include "filter.func"
static void
passthrough_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstPassthrough *filter;
g_return_if_fail (GST_IS_PASSTHROUGH (object));
filter = GST_PASSTHROUGH (object);
switch (prop_id) {
case ARG_SILENT:
filter->silent = g_value_get_boolean (value);
break;
default:
break;
}
}
static void
passthrough_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstPassthrough *filter;
g_return_if_fail (GST_IS_PASSTHROUGH (object));
filter = GST_PASSTHROUGH (object);
switch (prop_id) {
case ARG_SILENT:
g_value_set_boolean (value, filter->silent);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "passthrough",
GST_RANK_NONE, GST_TYPE_PASSTHROUGH);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"passthrough",
"Transparent filter for audio/raw (boilerplate for effects)",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)