gstreamer/ext/sidplay/gstsiddec.cc

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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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <gst/bytestream/bytestream.h>
#include "gstsiddec.h"
/* Sidec signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
#define DEFAULT_BLOCKSIZE 4096
enum
{
ARG_0,
ARG_TUNE,
ARG_CLOCK,
ARG_MEMORY,
ARG_FILTER,
ARG_MEASURED_VOLUME,
ARG_MOS8580,
ARG_FORCE_SPEED,
ARG_BLOCKSIZE,
ARG_METADATA
/* FILL ME */
};
static GstStaticPadTemplate sink_templ = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-sid")
);
static GstStaticPadTemplate src_templ = 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, false }, "
"width = (int) { 8, 16 }, "
"depth = (int) { 8, 16 }, "
"rate = (int) [ 8000, 48000 ], " "channels = (int) [ 1, 2 ]")
);
enum
{
SID_STATE_NEED_TUNE = 1,
SID_STATE_LOAD_TUNE = 2,
SID_STATE_PLAY_TUNE = 3
};
#define GST_TYPE_SID_CLOCK (gst_sid_clock_get_type())
static GType
gst_sid_clock_get_type (void)
{
static GType sid_clock_type = 0;
static GEnumValue sid_clock[] = {
{SIDTUNE_CLOCK_PAL, "0", "PAL"},
{SIDTUNE_CLOCK_NTSC, "1", "NTSC"},
{0, NULL, NULL},
};
if (!sid_clock_type) {
sid_clock_type = g_enum_register_static ("GstSidClock", sid_clock);
}
return sid_clock_type;
}
#define GST_TYPE_SID_MEMORY (gst_sid_memory_get_type())
static GType
gst_sid_memory_get_type (void)
{
static GType sid_memory_type = 0;
static GEnumValue sid_memory[] = {
{MPU_BANK_SWITCHING, "32", "Bank Switching"},
{MPU_TRANSPARENT_ROM, "33", "Transparent ROM"},
{MPU_PLAYSID_ENVIRONMENT, "34", "Playsid Environment"},
{0, NULL, NULL},
};
if (!sid_memory_type) {
sid_memory_type = g_enum_register_static ("GstSidMemory", sid_memory);
}
return sid_memory_type;
}
static void gst_siddec_base_init (gpointer g_class);
static void gst_siddec_class_init (GstSidDec * klass);
static void gst_siddec_init (GstSidDec * siddec);
static void gst_siddec_loop (GstElement * element);
static gboolean gst_siddec_src_convert (GstPad * pad, GstFormat src_format,
gint64 src_value, GstFormat * dest_format, gint64 * dest_value);
static gboolean gst_siddec_src_query (GstPad * pad, GstQueryType type,
GstFormat * format, gint64 * value);
static void gst_siddec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_siddec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static GstElementClass *parent_class = NULL;
//static guint gst_siddec_signals[LAST_SIGNAL] = { 0 };
GType
gst_siddec_get_type (void)
{
static GType siddec_type = 0;
if (!siddec_type) {
static const GTypeInfo siddec_info = {
sizeof (GstSidDecClass),
gst_siddec_base_init,
NULL,
(GClassInitFunc) gst_siddec_class_init,
NULL,
NULL,
sizeof (GstSidDec),
0,
(GInstanceInitFunc) gst_siddec_init,
NULL
};
siddec_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstSidDec", &siddec_info,
(GTypeFlags) 0);
}
return siddec_type;
}
static void
gst_siddec_base_init (gpointer g_class)
{
static GstElementDetails gst_siddec_details =
GST_ELEMENT_DETAILS ("Sid decoder",
"Codec/Decoder/Audio",
"Use sidplay to decode SID audio tunes",
"Wim Taymans <wim.taymans@chello.be> ");
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details (element_class, &gst_siddec_details);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_templ));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_templ));
}
static void
gst_siddec_class_init (GstSidDec * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = GST_ELEMENT_CLASS (g_type_class_ref (GST_TYPE_ELEMENT));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TUNE,
g_param_spec_int ("tune", "tune", "tune",
1, 100, 1, (GParamFlags) G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CLOCK,
g_param_spec_enum ("clock", "clock", "clock",
GST_TYPE_SID_CLOCK, SIDTUNE_CLOCK_PAL,
(GParamFlags) G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MEMORY,
g_param_spec_enum ("memory", "memory", "memory", GST_TYPE_SID_MEMORY,
MPU_PLAYSID_ENVIRONMENT, (GParamFlags) G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FILTER,
g_param_spec_boolean ("filter", "filter", "filter", TRUE,
(GParamFlags) G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MEASURED_VOLUME,
g_param_spec_boolean ("measured_volume", "measured_volume",
"measured_volume", TRUE, (GParamFlags) G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MOS8580,
g_param_spec_boolean ("mos8580", "mos8580", "mos8580", TRUE,
(GParamFlags) G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FORCE_SPEED,
g_param_spec_boolean ("force_speed", "force_speed", "force_speed", TRUE,
(GParamFlags) G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BLOCKSIZE,
g_param_spec_ulong ("blocksize", "Block size",
"Size in bytes to output per buffer", 1, G_MAXULONG,
DEFAULT_BLOCKSIZE, (GParamFlags) G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_METADATA,
g_param_spec_boxed ("metadata", "Metadata", "Metadata", GST_TYPE_CAPS,
(GParamFlags) G_PARAM_READABLE));
gobject_class->set_property = gst_siddec_set_property;
gobject_class->get_property = gst_siddec_get_property;
}
static void
gst_siddec_init (GstSidDec * siddec)
{
siddec->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get (&sink_templ),
"sink");
gst_element_add_pad (GST_ELEMENT (siddec), siddec->sinkpad);
gst_pad_set_query_function (siddec->sinkpad, NULL);
gst_pad_set_convert_function (siddec->sinkpad, NULL);
siddec->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get (&src_templ),
"src");
gst_pad_set_event_function (siddec->srcpad, NULL);
gst_pad_set_convert_function (siddec->srcpad, gst_siddec_src_convert);
gst_pad_set_query_function (siddec->srcpad, gst_siddec_src_query);
gst_element_add_pad (GST_ELEMENT (siddec), siddec->srcpad);
gst_element_set_loop_function (GST_ELEMENT (siddec), gst_siddec_loop);
siddec->engine = new emuEngine ();
siddec->tune = new sidTune (0);
siddec->config = (emuConfig *) g_malloc (sizeof (emuConfig));
siddec->config->frequency = 44100; // frequency
siddec->config->bitsPerSample = SIDEMU_16BIT; // bits per sample
siddec->config->sampleFormat = SIDEMU_SIGNED_PCM; // sample fomat
siddec->config->channels = SIDEMU_STEREO; // channels
siddec->config->sidChips = 0; // -
siddec->config->volumeControl = SIDEMU_NONE; // volume control
siddec->config->mos8580 = TRUE; // mos8580
siddec->config->measuredVolume = TRUE; // measure volume
siddec->config->emulateFilter = TRUE; // emulate filter
siddec->config->filterFs = SIDEMU_DEFAULTFILTERFS; // filter Fs
siddec->config->filterFm = SIDEMU_DEFAULTFILTERFM; // filter Fm
siddec->config->filterFt = SIDEMU_DEFAULTFILTERFT; // filter Ft
siddec->config->memoryMode = MPU_PLAYSID_ENVIRONMENT; // memory mode
siddec->config->clockSpeed = SIDTUNE_CLOCK_PAL; // clock speed
siddec->config->forceSongSpeed = TRUE; // force song speed
siddec->config->digiPlayerScans = 0; // digi player scans
siddec->config->autoPanning = SIDEMU_NONE; // auto panning
siddec->engine->setConfig (*siddec->config);
siddec->engine->setDefaultFilterStrength ();
siddec->state = SID_STATE_NEED_TUNE;
siddec->tune_buffer = (guchar *) g_malloc (maxSidtuneFileLen);
siddec->tune_len = 0;
siddec->tune_number = 1;
siddec->total_bytes = 0;
siddec->blocksize = DEFAULT_BLOCKSIZE;
}
#if 0
static void
update_metadata (GstSidDec * siddec)
{
sidTuneInfo info;
GstProps *props;
GstPropsEntry *entry;
if (siddec->tune->getInfo (info)) {
props = gst_props_empty_new ();
if (info.nameString) {
entry = gst_props_entry_new ("Title", G_TYPE_STRING (info.nameString));
gst_props_add_entry (props, entry);
}
if (info.authorString) {
entry =
gst_props_entry_new ("Composer", G_TYPE_STRING (info.authorString));
gst_props_add_entry (props, entry);
}
if (info.copyrightString) {
entry =
gst_props_entry_new ("Copyright",
G_TYPE_STRING (info.copyrightString));
gst_props_add_entry (props, entry);
}
siddec->metadata = gst_caps_new ("sid_metadata",
"application/x-gst-metadata", props);
g_object_notify (G_OBJECT (siddec), "metadata");
}
}
#endif
#define GET_FIXED_INT(caps, name, dest) \
G_STMT_START { \
if (gst_caps_has_fixed_property (caps, name)) \
gst_structure_get_int (structure, name, (gint*)dest); \
} G_STMT_END
#define GET_FIXED_BOOLEAN(caps, name, dest) \
G_STMT_START { \
if (gst_caps_has_fixed_property (caps, name)) \
gst_structure_get_boolean (structure, name, dest); \
} G_STMT_END
static gboolean
siddec_negotiate (GstSidDec * siddec)
{
GstCaps *allowed;
gboolean sign = TRUE;
gint width = 16, depth = 16;
GstStructure *structure;
int rate = 22050;
int channels = 2;
allowed = gst_pad_get_allowed_caps (siddec->srcpad);
if (!allowed)
return FALSE;
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) {
return FALSE;
}
width = width | depth;
if (width) {
siddec->config->bitsPerSample = width;
}
gst_structure_get_boolean (structure, "signed", &sign);
gst_structure_get_int (structure, "rate", &rate);
siddec->config->frequency = rate;
gst_structure_get_int (structure, "channels", &channels);
siddec->config->channels = channels;
siddec->config->sampleFormat =
(sign ? SIDEMU_SIGNED_PCM : SIDEMU_UNSIGNED_PCM);
if (!gst_pad_try_set_caps (siddec->srcpad,
gst_caps_new_simple ("audio/x-raw-int",
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, sign,
"width", G_TYPE_INT, siddec->config->bitsPerSample,
"depth", G_TYPE_INT, siddec->config->bitsPerSample,
"rate", G_TYPE_INT, siddec->config->frequency,
"channels", G_TYPE_INT, siddec->config->channels, NULL))) {
return FALSE;
}
siddec->engine->setConfig (*siddec->config);
return TRUE;
}
static void
gst_siddec_loop (GstElement * element)
{
GstSidDec *siddec;
siddec = GST_SIDDEC (element);
if (siddec->state == SID_STATE_NEED_TUNE) {
GstData *data = gst_pad_pull (siddec->sinkpad);
g_assert (data != NULL);
if (GST_IS_EVENT (data)) {
GstEvent *event = GST_EVENT (data);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
siddec->state = SID_STATE_LOAD_TUNE;
break;
case GST_EVENT_DISCONTINUOUS:
break;
default:
// bail out, we're not going to do anything
gst_event_unref (event);
gst_pad_send_event (siddec->srcpad, gst_event_new (GST_EVENT_EOS));
gst_element_set_eos (element);
return;
}
gst_event_unref (event);
} else {
GstBuffer *buf = GST_BUFFER (data);
memcpy (siddec->tune_buffer + siddec->tune_len, GST_BUFFER_DATA (buf),
GST_BUFFER_SIZE (buf));
siddec->tune_len += GST_BUFFER_SIZE (buf);
gst_buffer_unref (buf);
}
}
if (siddec->state == SID_STATE_LOAD_TUNE) {
if (!siddec->tune->load (siddec->tune_buffer, siddec->tune_len)) {
GST_ELEMENT_ERROR (siddec, LIBRARY, TOO_LAZY, (NULL), (NULL));
return;
}
//update_metadata (siddec);
if (!siddec_negotiate (siddec)) {
GST_ELEMENT_ERROR (siddec, CORE, NEGOTIATION, (NULL), (NULL));
return;
}
if (!sidEmuInitializeSong (*siddec->engine, *siddec->tune,
siddec->tune_number)) {
GST_ELEMENT_ERROR (siddec, LIBRARY, TOO_LAZY, (NULL), (NULL));
return;
}
siddec->state = SID_STATE_PLAY_TUNE;
}
if (siddec->state == SID_STATE_PLAY_TUNE) {
GstBuffer *out;
GstFormat format;
gint64 value, offset, time;
out = gst_buffer_new_and_alloc (siddec->blocksize);
sidEmuFillBuffer (*siddec->engine, *siddec->tune,
GST_BUFFER_DATA (out), GST_BUFFER_SIZE (out));
/* get offset in samples */
format = GST_FORMAT_DEFAULT;
gst_siddec_src_query (siddec->srcpad, GST_QUERY_POSITION, &format, &offset);
GST_BUFFER_OFFSET (out) = offset;
/* get current timestamp */
format = GST_FORMAT_TIME;
gst_siddec_src_query (siddec->srcpad, GST_QUERY_POSITION, &format, &time);
GST_BUFFER_TIMESTAMP (out) = time;
/* update position and get new timestamp to calculate duration */
siddec->total_bytes += siddec->blocksize;
/* get offset in samples */
format = GST_FORMAT_DEFAULT;
gst_siddec_src_query (siddec->srcpad, GST_QUERY_POSITION, &format, &value);
GST_BUFFER_OFFSET_END (out) = value;
format = GST_FORMAT_TIME;
gst_siddec_src_query (siddec->srcpad, GST_QUERY_POSITION, &format, &value);
GST_BUFFER_DURATION (out) = value - time;
gst_pad_push (siddec->srcpad, GST_DATA (out));
}
}
static gboolean
gst_siddec_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
{
gboolean res = TRUE;
guint scale = 1;
GstSidDec *siddec;
gint bytes_per_sample;
siddec = GST_SIDDEC (gst_pad_get_parent (pad));
bytes_per_sample =
(siddec->config->bitsPerSample >> 3) * siddec->config->channels;
switch (src_format) {
case GST_FORMAT_BYTES:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
if (bytes_per_sample == 0)
return FALSE;
*dest_value = src_value / bytes_per_sample;
break;
case GST_FORMAT_TIME:
{
gint byterate = bytes_per_sample * siddec->config->frequency;
if (byterate == 0)
return FALSE;
*dest_value = src_value * GST_SECOND / byterate;
break;
}
default:
res = FALSE;
}
break;
case GST_FORMAT_DEFAULT:
switch (*dest_format) {
case GST_FORMAT_BYTES:
*dest_value = src_value * bytes_per_sample;
break;
case GST_FORMAT_TIME:
if (siddec->config->frequency == 0)
return FALSE;
*dest_value = src_value * GST_SECOND / siddec->config->frequency;
break;
default:
res = FALSE;
}
break;
case GST_FORMAT_TIME:
switch (*dest_format) {
case GST_FORMAT_BYTES:
scale = bytes_per_sample;
/* fallthrough */
case GST_FORMAT_DEFAULT:
*dest_value =
src_value * scale * siddec->config->frequency / GST_SECOND;
break;
default:
res = FALSE;
}
break;
default:
res = FALSE;
}
return res;
}
static gboolean
gst_siddec_src_query (GstPad * pad, GstQueryType type,
GstFormat * format, gint64 * value)
{
gboolean res = TRUE;
GstSidDec *siddec;
siddec = GST_SIDDEC (gst_pad_get_parent (pad));
switch (type) {
case GST_QUERY_POSITION:
/* we only know about our bytes, convert to requested format */
res &= gst_siddec_src_convert (pad,
GST_FORMAT_BYTES, siddec->total_bytes, format, value);
break;
default:
res = FALSE;
break;
}
return res;
}
static void
gst_siddec_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstSidDec *siddec;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_SIDDEC (object));
siddec = GST_SIDDEC (object);
switch (prop_id) {
case ARG_TUNE:
siddec->tune_number = g_value_get_int (value);
break;
case ARG_CLOCK:
siddec->config->clockSpeed = g_value_get_enum (value);
break;
case ARG_MEMORY:
siddec->config->memoryMode = g_value_get_enum (value);
break;
case ARG_FILTER:
siddec->config->emulateFilter = g_value_get_boolean (value);
break;
case ARG_MEASURED_VOLUME:
siddec->config->measuredVolume = g_value_get_boolean (value);
break;
case ARG_MOS8580:
siddec->config->mos8580 = g_value_get_boolean (value);
break;
case ARG_BLOCKSIZE:
siddec->blocksize = g_value_get_ulong (value);
break;
case ARG_FORCE_SPEED:
siddec->config->forceSongSpeed = g_value_get_boolean (value);
break;
default:
/* G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); */
return;
}
siddec->engine->setConfig (*siddec->config);
}
static void
gst_siddec_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstSidDec *siddec;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_SIDDEC (object));
siddec = GST_SIDDEC (object);
switch (prop_id) {
case ARG_TUNE:
g_value_set_int (value, siddec->tune_number);
break;
case ARG_CLOCK:
g_value_set_enum (value, siddec->config->clockSpeed);
break;
case ARG_MEMORY:
g_value_set_enum (value, siddec->config->memoryMode);
break;
case ARG_FILTER:
g_value_set_boolean (value, siddec->config->emulateFilter);
break;
case ARG_MEASURED_VOLUME:
g_value_set_boolean (value, siddec->config->measuredVolume);
break;
case ARG_MOS8580:
g_value_set_boolean (value, siddec->config->mos8580);
break;
case ARG_FORCE_SPEED:
g_value_set_boolean (value, siddec->config->forceSongSpeed);
break;
case ARG_BLOCKSIZE:
g_value_set_ulong (value, siddec->blocksize);
break;
case ARG_METADATA:
g_value_set_boxed (value, siddec->metadata);
break;
default:
/* G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); */
break;
}
}
static gboolean
plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "siddec", GST_RANK_PRIMARY,
GST_TYPE_SIDDEC);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"siddec",
"Uses libsid to decode .sid files",
plugin_init, VERSION, "GPL", GST_PACKAGE, GST_ORIGIN)