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gstreamer/ext/mikmod/gstmikmod.c
Benjamin Otte 7e4720f88c make 8 bit output use the right caps 
Original commit message from CVS:
make 8 bit output use the right caps
2003-01-30 17:44:35 +00:00

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/* GStreamer
* Copyright (C) <1999> 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.
*/
#include "gstmikmod.h"
#include <gst/audio/audio.h>
#include <stdlib.h>
/* elementfactory information */
GstElementDetails mikmod_details = {
"MikMod",
"Codec/Audio/Decoder",
"GPL",
"Module decoder based on libmikmod",
VERSION,
"Jeremy SIMON <jsimon13@yahoo.fr>",
"(C) 2001",
};
/* Filter signals and args */
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
ARG_SONGNAME,
ARG_MODTYPE,
ARG_MUSICVOLUME,
ARG_PANSEP,
ARG_REVERB,
ARG_SNDFXVOLUME,
ARG_VOLUME,
ARG_MIXFREQ,
ARG_INTERP,
ARG_REVERSE,
ARG_SURROUND,
ARG_16BIT,
ARG_HQMIXER,
ARG_SOFT_MUSIC,
ARG_SOFT_SNDFX,
ARG_STEREO
};
static GstPadTemplate*
mikmod_src_factory (void)
{
static GstPadTemplate *template = NULL;
if (!template) {
template = gst_pad_template_new (
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
gst_caps_new ( /* use16bit = TRUE */
"mikmod_src",
"audio/raw",
gst_props_new (
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"signed", GST_PROPS_BOOLEAN (TRUE),
"width", GST_PROPS_INT (16),
"depth", GST_PROPS_INT (16),
"rate", GST_PROPS_INT_RANGE (8000, 48000),
"channels", GST_PROPS_INT_RANGE (1, 2),
NULL)),
gst_caps_new ( /* use16bit = FALSE */
"mikmod_src",
"audio/raw",
gst_props_new (
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"signed", GST_PROPS_BOOLEAN (FALSE),
"width", GST_PROPS_INT (8),
"depth", GST_PROPS_INT (8),
"rate", GST_PROPS_INT_RANGE (8000, 48000),
"channels", GST_PROPS_INT_RANGE (1, 2),
NULL)),
NULL);
}
return template;
}
static GstPadTemplate*
mikmod_sink_factory (void)
{
static GstPadTemplate *template = NULL;
if (!template) {
template = gst_pad_template_new (
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
gst_caps_new (
"mikmod_sink",
"audio/mod",
NULL),NULL
);
}
return template;
}
static void gst_mikmod_class_init (GstMikModClass *klass);
static void gst_mikmod_init (GstMikMod *filter);
static void gst_mikmod_set_property (GObject *object, guint id, const GValue *value, GParamSpec *pspec );
static void gst_mikmod_get_property (GObject *object, guint id, GValue *value, GParamSpec *pspec );
static void gst_mikmod_loop (GstElement *element);
static gboolean gst_mikmod_setup (GstMikMod *mikmod);
static GstElementStateReturn gst_mikmod_change_state (GstElement *element);
static GstElementClass *parent_class = NULL;
#define GST_TYPE_MIKMOD_MIXFREQ (gst_mikmod_mixfreq_get_type())
static GType
gst_mikmod_mixfreq_get_type (void)
{
static GType mikmod_mixfreq_type = 0;
static GEnumValue mikmod_mixfreq[] = {
{ 0, "8000", "8000 Hz" },
{ 1, "11025", "11025 Hz" },
{ 2, "22100", "22100 Hz" },
{ 3, "44100", "44100 Hz" },
{ 0, NULL, NULL },
};
if (! mikmod_mixfreq_type ) {
mikmod_mixfreq_type = g_enum_register_static ("GstMikmodmixfreq", mikmod_mixfreq);
}
return mikmod_mixfreq_type;
}
GType
gst_mikmod_get_type(void) {
static GType mikmod_type = 0;
if (!mikmod_type) {
static const GTypeInfo mikmod_info = {
sizeof(GstMikModClass),
NULL,
NULL,
(GClassInitFunc)gst_mikmod_class_init,
NULL,
NULL,
sizeof(GstMikMod),
0,
(GInstanceInitFunc)gst_mikmod_init,
};
mikmod_type = g_type_register_static(GST_TYPE_ELEMENT, "GstMikmod", &mikmod_info, 0);
}
return mikmod_type;
}
static void
gst_mikmod_class_init (GstMikModClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_SONGNAME,
g_param_spec_string("songname","songname","songname",
NULL, G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MODTYPE,
g_param_spec_string("modtype", "modtype", "modtype",
NULL, G_PARAM_READABLE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MUSICVOLUME,
g_param_spec_int("musicvolume", "musivolume", "musicvolume",
0, 128, 128, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PANSEP,
g_param_spec_int("pansep", "pansep", "pansep",
0, 128, 128, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_REVERB,
g_param_spec_int("reverb", "reverb", "reverb",
0, 15, 0, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_SNDFXVOLUME,
g_param_spec_int("sndfxvolume", "sndfxvolume", "sndfxvolume",
0, 128, 128, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VOLUME,
g_param_spec_int("volume", "volume", "volume",
0, 128, 96, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MIXFREQ,
g_param_spec_enum("mixfreq", "mixfreq", "mixfreq",
GST_TYPE_MIKMOD_MIXFREQ, 3,G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_INTERP,
g_param_spec_boolean("interp", "interp", "interp",
FALSE, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_REVERSE,
g_param_spec_boolean("reverse", "reverse", "reverse",
FALSE, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_SURROUND,
g_param_spec_boolean("surround", "surround", "surround",
TRUE, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_16BIT,
g_param_spec_boolean("use16bit", "use16bit", "use16bit",
TRUE, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HQMIXER,
g_param_spec_boolean("hqmixer", "hqmixer", "hqmixer",
FALSE, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_SOFT_MUSIC,
g_param_spec_boolean("soft_music", "soft_music", "soft_music",
TRUE, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_SOFT_SNDFX,
g_param_spec_boolean("soft_sndfx", "soft_sndfx", "soft_sndfx",
TRUE, G_PARAM_READWRITE ));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_STEREO,
g_param_spec_boolean("stereo", "stereo", "stereo",
TRUE, G_PARAM_READWRITE ));
gobject_class->set_property = gst_mikmod_set_property;
gobject_class->get_property = gst_mikmod_get_property;
gstelement_class->change_state = gst_mikmod_change_state;
}
static void
gst_mikmod_init (GstMikMod *filter)
{
filter->sinkpad = gst_pad_new_from_template(mikmod_sink_factory (),"sink");
filter->srcpad = gst_pad_new_from_template(mikmod_src_factory (),"src");
gst_element_add_pad(GST_ELEMENT(filter),filter->sinkpad);
gst_element_add_pad(GST_ELEMENT(filter),filter->srcpad);
gst_element_set_loop_function (GST_ELEMENT (filter), gst_mikmod_loop);
filter->Buffer = NULL;
filter->stereo = TRUE;
filter->surround = TRUE;
filter->_16bit = TRUE;
filter->soft_music = TRUE;
filter->soft_sndfx = TRUE;
filter->mixfreq = 44100;
filter->reverb = 0;
filter->pansep = 128;
filter->musicvolume = 128;
filter->volume = 96;
filter->sndfxvolume = 128;
filter->songname = NULL;
filter->modtype = NULL;
}
static void
gst_mikmod_loop (GstElement *element)
{
GstMikMod *mikmod;
GstBuffer *buffer_in;
gint width, sign;
g_return_if_fail (element != NULL);
g_return_if_fail (GST_IS_MIKMOD (element));
mikmod = GST_MIKMOD (element);
srcpad = mikmod->srcpad;
mikmod->Buffer = NULL;
while ((buffer_in = gst_pad_pull( mikmod->sinkpad ))) {
if ( GST_IS_EVENT (buffer_in) ) {
GstEvent *event = GST_EVENT (buffer_in);
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS)
break;
}
else
{
if ( mikmod->Buffer ) {
mikmod->Buffer = gst_buffer_merge( mikmod->Buffer, buffer_in );
gst_buffer_unref( buffer_in );
}
else
mikmod->Buffer = buffer_in;
}
}
if ( mikmod->_16bit ) {
width = 16;
sign = TRUE;
} else {
width = 8;
sign = FALSE;
}
gst_mikmod_setup( mikmod );
MikMod_RegisterDriver(&drv_gst);
MikMod_RegisterAllLoaders();
MikMod_Init("");
reader = GST_READER_new( mikmod );
module = Player_LoadGeneric ( reader, 64, 0 );
gst_buffer_unref (mikmod->Buffer);
if ( ! Player_Active() )
Player_Start(module);
gst_pad_try_set_caps (mikmod->srcpad,
GST_CAPS_NEW (
"mikmod_src",
"audio/raw",
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"signed", GST_PROPS_BOOLEAN (sign),
"width", GST_PROPS_INT (width),
"depth", GST_PROPS_INT (width),
"rate", GST_PROPS_INT (mikmod->mixfreq),
"channels", GST_PROPS_INT (2)));
do {
if ( Player_Active() ) {
timestamp = ( module->sngtime / 1024.0 ) * GST_SECOND;
drv_gst.Update();
gst_element_yield (element);
}
else {
gst_element_set_eos (GST_ELEMENT (mikmod));
gst_pad_push (mikmod->srcpad, GST_BUFFER (gst_event_new (GST_EVENT_EOS)));
}
}
while ( 1 );
}
static gboolean
gst_mikmod_setup (GstMikMod *mikmod)
{
md_musicvolume = mikmod->musicvolume;
md_pansep = mikmod->pansep;
md_reverb = mikmod->reverb;
md_sndfxvolume = mikmod->sndfxvolume;
md_volume = mikmod->volume;
md_mixfreq = mikmod->mixfreq;
md_mode = 0;
if ( mikmod->interp )
md_mode = md_mode | DMODE_INTERP;
if ( mikmod->reverse )
md_mode = md_mode | DMODE_REVERSE;
if ( mikmod->surround )
md_mode = md_mode | DMODE_SURROUND;
if ( mikmod->_16bit )
md_mode = md_mode | DMODE_16BITS;
if ( mikmod->hqmixer )
md_mode = md_mode | DMODE_HQMIXER;
if ( mikmod->soft_music )
md_mode = md_mode | DMODE_SOFT_MUSIC;
if ( mikmod->soft_sndfx )
md_mode = md_mode | DMODE_SOFT_SNDFX;
if ( mikmod->stereo )
md_mode = md_mode | DMODE_STEREO;
return TRUE;
}
static GstElementStateReturn
gst_mikmod_change_state (GstElement *element)
{
GstMikMod *mikmod;
g_return_val_if_fail (GST_IS_MIKMOD (element), GST_STATE_FAILURE);
mikmod = GST_MIKMOD (element);
GST_DEBUG (0,"state pending %d", GST_STATE_PENDING (element));
if (GST_STATE_PENDING (element) == GST_STATE_READY)
{
gst_mikmod_setup(mikmod);
if ( Player_Active() )
{
Player_TogglePause();
Player_SetPosition( 0 );
}
}
if (GST_STATE_PENDING (element) == GST_STATE_PLAYING)
{
if ( Player_Active() && Player_Paused() )
Player_TogglePause();
else
if ( ! Player_Active() )
Player_Start(module);
}
if (GST_STATE_PENDING (element) == GST_STATE_PAUSED)
if ( Player_Active() && ! Player_Paused() )
Player_TogglePause();
if (GST_STATE_PENDING (element) == GST_STATE_NULL)
MikMod_Exit();
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
static void
gst_mikmod_set_property (GObject *object, guint id, const GValue *value, GParamSpec *pspec )
{
GstMikMod *filter;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail(GST_IS_MIKMOD(object));
filter = GST_MIKMOD(object);
switch (id) {
case ARG_SONGNAME:
g_free (filter->songname);
filter->songname = g_strdup (g_value_get_string (value));
break;
case ARG_MODTYPE:
g_free (filter->modtype);
filter->modtype = g_strdup (g_value_get_string (value));
break;
case ARG_MUSICVOLUME:
filter->musicvolume = g_value_get_int (value);
break;
case ARG_PANSEP:
filter->pansep = g_value_get_int (value);
break;
case ARG_REVERB:
filter->reverb = g_value_get_int (value);
break;
case ARG_SNDFXVOLUME:
filter->sndfxvolume = g_value_get_int (value);
break;
case ARG_VOLUME:
filter->volume = g_value_get_int (value);
break;
case ARG_MIXFREQ:
filter->mixfreq = g_value_get_enum (value);
break;
case ARG_INTERP:
filter->interp = g_value_get_boolean (value);
break;
case ARG_REVERSE:
filter->reverse = g_value_get_boolean (value);
break;
case ARG_SURROUND:
filter->surround = g_value_get_boolean (value);
break;
case ARG_16BIT:
filter->_16bit = g_value_get_boolean (value);
break;
case ARG_HQMIXER:
filter->hqmixer = g_value_get_boolean (value);
break;
case ARG_SOFT_MUSIC:
filter->soft_music = g_value_get_boolean (value);
break;
case ARG_SOFT_SNDFX:
filter->soft_sndfx = g_value_get_boolean (value);
break;
case ARG_STEREO:
filter->stereo = g_value_get_boolean (value);
break;
default:
break;
}
}
static void
gst_mikmod_get_property (GObject *object, guint id, GValue *value, GParamSpec *pspec )
{
GstMikMod *filter;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail(GST_IS_MIKMOD(object));
filter = GST_MIKMOD(object);
switch (id) {
case ARG_MUSICVOLUME:
g_value_set_int (value, filter->musicvolume);
break;
case ARG_PANSEP:
g_value_set_int (value, filter->pansep);
break;
case ARG_REVERB:
g_value_set_int (value, filter->reverb);
break;
case ARG_SNDFXVOLUME:
g_value_set_int (value, filter->sndfxvolume);
break;
case ARG_VOLUME:
g_value_set_int (value, filter->volume);
break;
case ARG_MIXFREQ:
g_value_set_enum (value, filter->mixfreq);
break;
case ARG_INTERP:
g_value_set_boolean (value, filter->interp);
break;
case ARG_REVERSE:
g_value_set_boolean (value, filter->reverse);
break;
case ARG_SURROUND:
g_value_set_boolean (value, filter->surround);
break;
case ARG_16BIT:
g_value_set_boolean (value, filter->_16bit);
break;
case ARG_HQMIXER:
g_value_set_boolean (value, filter->hqmixer);
break;
case ARG_SOFT_MUSIC:
g_value_set_boolean (value, filter->soft_music);
break;
case ARG_SOFT_SNDFX:
g_value_set_boolean (value, filter->soft_sndfx);
break;
case ARG_STEREO:
g_value_set_boolean (value, filter->stereo);
break;
default:
break;
}
}
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
GstElementFactory *factory;
factory = gst_element_factory_new("mikmod",GST_TYPE_MIKMOD,
&mikmod_details);
g_return_val_if_fail(factory != NULL, FALSE);
gst_element_factory_set_rank (factory, GST_ELEMENT_RANK_SECONDARY);
gst_element_factory_add_pad_template (factory, mikmod_src_factory ());
gst_element_factory_add_pad_template (factory, mikmod_sink_factory ());
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"mikmod",
plugin_init
};
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