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Add libopenspc-based SPC decoder element (#348220).

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Original commit message from CVS:
Patch by: Chris Lee  <clee at kde org>
* configure.ac:
* ext/Makefile.am:
* ext/spc/Makefile.am:
* ext/spc/gstspc.c: (spc_negotiate), (gst_spc_dec_base_init),
(gst_spc_dec_class_init), (gst_spc_dec_init), (gst_spc_dec_chain),
(gst_spc_dec_sink_event), (gst_spc_dec_src_event),
(gst_spc_dec_src_query), (spc_play), (spc_setup),
(gst_spc_dec_change_state), (plugin_init):
* ext/spc/gstspc.h:
Add libopenspc-based SPC decoder element (#348220).
This commit is contained in:
Chris Lee 2006-07-23 11:52:34 +00:00 committed by Tim-Philipp Müller
parent c8e459496b
commit b7f35a1240
7 changed files with 459 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
ChangeLog
View file

@ -1,3 +1,18 @@
2006-07-23 Tim-Philipp Müller <tim at centricular dot net>
Patch by: Chris Lee <clee at kde org>
* configure.ac:
* ext/Makefile.am:
* ext/spc/Makefile.am:
* ext/spc/gstspc.c: (spc_negotiate), (gst_spc_dec_base_init),
(gst_spc_dec_class_init), (gst_spc_dec_init), (gst_spc_dec_chain),
(gst_spc_dec_sink_event), (gst_spc_dec_src_event),
(gst_spc_dec_src_query), (spc_play), (spc_setup),
(gst_spc_dec_change_state), (plugin_init):
* ext/spc/gstspc.h:
Add libopenspc-based SPC decoder element (#348220).
2006-07-19 Tim-Philipp Müller <tim at centricular dot net>
Patch by: Martin Szulecki

2
common

@ -1 +1 @@
Subproject commit 53ecdc0c97a2992e5abeddd41d514bc142401e5d
Subproject commit 5393d85731aecaf5bcbbca258a7b60dae7360f3d

18
configure.ac
View file

@ -674,6 +674,22 @@ GST_CHECK_FEATURE(SOUNDTOUCH, [soundtouch plug-in], soundtouch, [
fi
])
dnl *** spc ***
translit(dnm, m, l) AM_CONDITIONAL(USE_SPC, true)
GST_CHECK_FEATURE(SPC, [spc decoder], spc, [
AC_CHECK_HEADER(openspc.h, [
AC_CHECK_LIB(openspc, OSPC_Init, [
SPC_LIBS="-lopenspc"
AC_SUBST(SPC_LIBS)
HAVE_SPC=yes
], [
HAVE_SPC=no
])
], [
HAVE_SPC=no
])
])
dnl *** swfdec ***
translit(dnm, m, l) AM_CONDITIONAL(USE_SWFDEC, true)
GST_CHECK_FEATURE(SWFDEC, [swfdec plug-in], swfdec, [
@ -765,6 +781,7 @@ AM_CONDITIONAL(USE_MUSICBRAINZ, false)
AM_CONDITIONAL(USE_NEON, false)
AM_CONDITIONAL(USE_SDL, false)
AM_CONDITIONAL(USE_SOUNDTOUCH, false)
AM_CONDITIONAL(USE_SPC, false)
AM_CONDITIONAL(USE_SWFDEC, false)
AM_CONDITIONAL(USE_THEORADEC, false)
AM_CONDITIONAL(USE_XVID, false)
@ -860,6 +877,7 @@ ext/musicbrainz/Makefile
ext/neon/Makefile
ext/sdl/Makefile
ext/soundtouch/Makefile
ext/spc/Makefile
ext/swfdec/Makefile
ext/theora/Makefile
ext/wavpack/Makefile

10
ext/Makefile.am
View file

@ -202,6 +202,12 @@ else
SOUNDTOUCH_DIR=
endif
if USE_SPC
SDL_DIR=spc
else
SDL_DIR=
endif
if USE_SWFDEC
SWFDEC_DIR=swfdec
else
@ -267,6 +273,7 @@ SUBDIRS=\
$(SMOOTHWAVE_DIR) \
$(SNDFILE_DIR) \
$(SOUNDTOUCH_DIR) \
$(SPC_DIR) \
$(SWFDEC_DIR) \
$(TARKIN_DIR) \
$(THEORA_DIR) \
@ -291,8 +298,9 @@ DIST_SUBDIRS= \
musicbrainz \
neon \
sdl \
swfdec \
soundtouch \
spc \
swfdec \
theora \
wavpack \
xvid

9
ext/spc/Makefile.am Normal file
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@ -0,0 +1,9 @@
plugin_LTLIBRARIES = libgstspc.la
libgstspc_la_SOURCES = gstspc.c
libgstspc_la_CFLAGS = $(GST_CFLAGS) $(SPC_CFLAGS)
libgstspc_la_LIBADD = $(GST_LIBS) $(SPC_LIBS)
libgstspc_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstspc.h

346
ext/spc/gstspc.c Normal file
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@ -0,0 +1,346 @@
/* Copyright (C) 2004-2005 Michael Pyne <michael dot pyne at kdemail net>
* Copyright (C) 2004-2006 Chris Lee <clee at kde org>
*
* 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 "gstspc.h"
#include <string.h>
static const GstElementDetails gst_spc_dec_details =
GST_ELEMENT_DETAILS ("OpenSPC SPC decoder",
"Codec/Audio/Decoder",
"Uses OpenSPC to emulate an SPC processor",
"Chris Lee <clee@kde.org>");
static GstStaticPadTemplate sink_factory =
GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-spc"));
static GstStaticPadTemplate src_factory =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) BYTE_ORDER, "
"signed = (boolean) TRUE, "
"width = (int) 16, "
"depth = (int) 16, " "rate = (int) 32000, " "channels = (int) 2"));
GST_BOILERPLATE (GstSpcDec, gst_spc_dec, GstElement, GST_TYPE_ELEMENT);
static GstFlowReturn gst_spc_dec_chain (GstPad * pad, GstBuffer * buffer);
static gboolean gst_spc_dec_sink_event (GstPad * pad, GstEvent * event);
static gboolean gst_spc_dec_src_event (GstPad * pad, GstEvent * event);
static gboolean gst_spc_dec_src_query (GstPad * pad, GstQuery * query);
static GstStateChangeReturn gst_spc_dec_change_state (GstElement * element,
GstStateChange transition);
static void spc_play (GstPad * pad);
static gboolean spc_setup (GstSpcDec * spc);
static gboolean
spc_negotiate (GstSpcDec * spc)
{
GstCaps *allowed, *caps;
GstStructure *structure;
gint width = 16, depth = 16;
gboolean sign;
int rate = 32000;
int channels = 2;
allowed = gst_pad_get_allowed_caps (spc->srcpad);
if (!allowed) {
GST_DEBUG_OBJECT (spc, "couldn't get allowed caps");
return FALSE;
}
GST_DEBUG_OBJECT (spc, "allowed caps: %" GST_PTR_FORMAT, allowed);
structure = gst_caps_get_structure (allowed, 0);
gst_structure_get_int (structure, "width", &width);
gst_structure_get_int (structure, "depth", &depth);
if (width && depth && width != depth) {
GST_DEBUG_OBJECT (spc, "width %d and depth %d are different", width, depth);
gst_caps_unref (allowed);
return FALSE;
}
gst_structure_get_boolean (structure, "signed", &sign);
gst_structure_get_int (structure, "rate", &rate);
gst_structure_get_int (structure, "channels", &channels);
caps = gst_caps_new_simple ("audio/x-raw-int",
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, TRUE,
"width", G_TYPE_INT, width,
"depth", G_TYPE_INT, depth,
"rate", G_TYPE_INT, rate, "channels", G_TYPE_INT, channels, NULL);
gst_pad_set_caps (spc->srcpad, caps);
gst_caps_unref (caps);
gst_caps_unref (allowed);
return TRUE;
}
static void
gst_spc_dec_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details (element_class, &gst_spc_dec_details);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_factory));
}
static void
gst_spc_dec_class_init (GstSpcDecClass * klass)
{
GstElementClass *element_class = (GstElementClass *) klass;
element_class->change_state = GST_DEBUG_FUNCPTR (gst_spc_dec_change_state);
}
static void
gst_spc_dec_init (GstSpcDec * spc, GstSpcDecClass * klass)
{
spc->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get (&sink_factory),
"sink");
gst_pad_set_query_function (spc->sinkpad, NULL);
gst_pad_set_event_function (spc->sinkpad, gst_spc_dec_sink_event);
gst_pad_set_chain_function (spc->sinkpad, gst_spc_dec_chain);
gst_element_add_pad (GST_ELEMENT (spc), spc->sinkpad);
spc->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get (&src_factory),
"src");
gst_pad_set_event_function (spc->srcpad, gst_spc_dec_src_event);
gst_pad_set_query_function (spc->srcpad, gst_spc_dec_src_query);
gst_pad_use_fixed_caps (spc->srcpad);
gst_element_add_pad (GST_ELEMENT (spc), spc->srcpad);
spc->buf = NULL;
spc->initialized = FALSE;
}
static GstFlowReturn
gst_spc_dec_chain (GstPad * pad, GstBuffer * buffer)
{
GstSpcDec *spc = GST_SPC_DEC (gst_pad_get_parent (pad));
if (spc->buf) {
spc->buf = gst_buffer_join (spc->buf, buffer);
} else {
spc->buf = buffer;
}
gst_object_unref (spc);
return GST_FLOW_OK;
}
static gboolean
gst_spc_dec_sink_event (GstPad * pad, GstEvent * event)
{
GstSpcDec *spc = GST_SPC_DEC (gst_pad_get_parent (pad));
gboolean result;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
result = spc_setup (spc);
break;
case GST_EVENT_NEWSEGMENT:
result = FALSE;
break;
default:
result = FALSE;
break;
}
gst_event_unref (event);
gst_object_unref (spc);
return result;
}
static gboolean
gst_spc_dec_src_event (GstPad * pad, GstEvent * event)
{
GstSpcDec *spc = GST_SPC_DEC (gst_pad_get_parent (pad));
gboolean result = FALSE;
switch (GST_EVENT_TYPE (event)) {
default:
break;
}
gst_event_unref (event);
gst_object_unref (spc);
return result;
}
static gboolean
gst_spc_dec_src_query (GstPad * pad, GstQuery * query)
{
GstSpcDec *spc = GST_SPC_DEC (gst_pad_get_parent (pad));
gboolean result = TRUE;
switch (GST_QUERY_TYPE (query)) {
default:
result = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (spc);
return result;
}
static void
spc_play (GstPad * pad)
{
GstSpcDec *spc = GST_SPC_DEC (gst_pad_get_parent (pad));
GstFlowReturn flow_return;
GstBuffer *out;
out = gst_buffer_new_and_alloc (1600 * 4);
gst_buffer_set_caps (out, GST_PAD_CAPS (pad));
OSPC_Run (-1, (short *) GST_BUFFER_DATA (out), 1600 * 4);
if ((flow_return = gst_pad_push (spc->srcpad, out)) != GST_FLOW_OK) {
const gchar *reason = gst_flow_get_name (flow_return);
GST_DEBUG_OBJECT (spc, "pausing task, reason %s", reason);
gst_pad_pause_task (pad);
if (GST_FLOW_IS_FATAL (flow_return) || flow_return == GST_FLOW_NOT_LINKED) {
gst_pad_push_event (pad, gst_event_new_eos ());
}
}
gst_object_unref (spc);
return;
}
static gboolean
spc_setup (GstSpcDec * spc)
{
guchar *data = GST_BUFFER_DATA (spc->buf);
gboolean text_format = FALSE;
if (!spc_negotiate (spc)) {
return FALSE;
}
if (data[0x23] == 26) {
GstEvent *tagevent;
GstTagList *taglist = gst_tag_list_new ();
if (data[0xA0] == '/')
text_format = TRUE;
gchar spctitle[0x21];
gchar spcartist[0x21];
gchar spcgame[0x21];
strncpy (spctitle, (gchar *) & data[0x2E], 32);
strncpy (spcartist, (gchar *) & data[(text_format ? 0xB1 : 0xB0)], 32);
strncpy (spcgame, (gchar *) & data[0x4E], 32);
spctitle[0x20] = '\0';
spcartist[0x20] = '\0';
spcgame[0x20] = '\0';
gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND,
GST_TAG_TITLE, spctitle,
GST_TAG_ARTIST, spcartist, GST_TAG_ALBUM, spcgame, NULL);
tagevent = gst_event_new_tag (taglist);
gst_element_found_tags_for_pad (GST_ELEMENT (spc), spc->srcpad, taglist);
}
if (OSPC_Init (GST_BUFFER_DATA (spc->buf), GST_BUFFER_SIZE (spc->buf)) != 0) {
return FALSE;
}
gst_pad_push_event (spc->srcpad, gst_event_new_new_segment (FALSE, 1.0,
GST_FORMAT_TIME, 0, -1, 0));
gst_pad_start_task (spc->srcpad, (GstTaskFunction) spc_play, spc->srcpad);
gst_buffer_unref (spc->buf);
spc->buf = NULL;
spc->initialized = TRUE;
return spc->initialized;
}
static GstStateChangeReturn
gst_spc_dec_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn result;
GstSpcDec *dec;
dec = GST_SPC_DEC (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
break;
default:
break;
}
result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (result == GST_STATE_CHANGE_FAILURE)
return result;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (dec->buf) {
gst_buffer_unref (dec->buf);
dec->buf = NULL;
}
break;
default:
break;
}
return result;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "spcdec", GST_RANK_PRIMARY,
GST_TYPE_SPC_DEC);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"spcdec",
"OpenSPC Audio Decoder",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);

61
ext/spc/gstspc.h Normal file
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@ -0,0 +1,61 @@
/* Copyright (C) 2004-2005 Michael Pyne <michael dot pyne at kdemail net>
* Copyright (C) 2004-2006 Chris Lee <clee at kde org>
*
* 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_SPC_DEC_H__
#define __GST_SPC_DEC_H__
#include <gst/gst.h>
#include <openspc.h>
G_BEGIN_DECLS
#define GST_TYPE_SPC_DEC \
(gst_spc_dec_get_type())
#define GST_SPC_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SPC_DEC,GstSpcDec))
#define GST_SPC_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SPC_DEC,GstSpcDecClass))
#define GST_IS_SPC_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SPC_DEC))
#define GST_IS_SPC_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SPC_DEC))
typedef struct _GstSpcDec GstSpcDec;
typedef struct _GstSpcDecClass GstSpcDecClass;
struct _GstSpcDec
{
GstElement element;
GstPad *sinkpad;
GstPad *srcpad;
GstBuffer *buf;
gboolean initialized;
};
struct _GstSpcDecClass
{
GstElementClass parent_class;
};
G_END_DECLS
#endif /* __GST_SPC_DEC_H__ */