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gstreamer/ext/cdparanoia/gstcdparanoia.c

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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.
*/
/* #define GST_DEBUG_ENABLED */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
/* taken from linux/cdrom.h */
#define CD_MSF_OFFSET 150 /* MSF numbering offset of first frame */
#define CD_SECS 60 /* seconds per minute */
#define CD_FRAMES 75 /* frames per second */
#include "gstcdparanoia.h"
static GstElementDetails cdparanoia_details = {
"CD Audio (cdda) Source, Paranoia IV",
"Source/File",
"Read audio from CD in paranoid mode",
VERSION,
"Erik Walthinsen <omega@cse.ogi.edu>",
"(C) 2000",
};
GST_PAD_TEMPLATE_FACTORY (cdparanoia_src_factory,
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"cdparanoia_src",
"audio/raw",
"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 (44100),
"channels", GST_PROPS_INT (2),
"chunksize", GST_PROPS_INT (CD_FRAMESIZE_RAW)
)
);
/********** Define useful types for non-programmatic interfaces **********/
#define GST_TYPE_PARANOIA_MODE (gst_paranoia_mode_get_type())
static GType
gst_paranoia_mode_get_type (void)
{
static GType paranoia_mode_type = 0;
static GEnumValue paranoia_modes[] = {
{ 0, "0", "Disable paranoid checking" },
{ 1, "1", "cdda2wav-style overlap checking" },
{ 2, "2", "Full paranoia" },
{ 0, NULL, NULL },
};
if (!paranoia_mode_type) {
paranoia_mode_type = g_enum_register_static ("GstParanoiaMode", paranoia_modes);
}
return paranoia_mode_type;
}
/********** Standard stuff for signals and arguments **********/
/* CDParanoia signals and args */
enum {
SMILIE_CHANGE,
TRANSPORT_ERROR,
UNCORRECTED_ERROR,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_LOCATION,
ARG_GENERIC_DEVICE,
ARG_START_TRACK,
ARG_END_TRACK,
ARG_LAST_TRACK,
ARG_CUR_TRACK,
ARG_START_SECTOR,
ARG_END_SECTOR,
ARG_CUR_SECTOR,
ARG_DEFAULT_SECTORS,
ARG_SEARCH_OVERLAP,
ARG_ENDIAN,
ARG_READ_SPEED,
ARG_TOC_OFFSET,
ARG_TOC_BIAS,
ARG_NEVER_SKIP,
ARG_ABORT_ON_SKIP,
ARG_PARANOIA_MODE,
ARG_SMILIE,
ARG_NO_TRACKS,
ARG_DISCID,
ARG_OFFSETS,
ARG_TOTAL_TIME,
};
static void cdparanoia_class_init (CDParanoiaClass *klass);
static void cdparanoia_init (CDParanoia *cdparanoia);
static void cdparanoia_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void cdparanoia_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static GstBuffer* cdparanoia_get (GstPad *pad);
static GstElementStateReturn cdparanoia_change_state (GstElement *element);
static GstElementClass *parent_class = NULL;
static guint cdparanoia_signals[LAST_SIGNAL] = { 0 };
GType
cdparanoia_get_type (void)
{
static GType cdparanoia_type = 0;
if (!cdparanoia_type) {
static const GTypeInfo cdparanoia_info = {
sizeof(CDParanoiaClass), NULL,
NULL,
(GClassInitFunc)cdparanoia_class_init,
NULL,
NULL,
sizeof(CDParanoia),
0,
(GInstanceInitFunc)cdparanoia_init,
};
cdparanoia_type = g_type_register_static (GST_TYPE_ELEMENT, "CDParanoia", &cdparanoia_info, 0);
}
return cdparanoia_type;
}
static void
cdparanoia_class_init (CDParanoiaClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
char *success = strerror_tr[0];
success = NULL;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
cdparanoia_signals[SMILIE_CHANGE] =
g_signal_new ("smilie_change", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (CDParanoiaClass, smilie_change), NULL, NULL,
g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING);
cdparanoia_signals[TRANSPORT_ERROR] =
g_signal_new ("transport_error", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (CDParanoiaClass, transport_error), NULL, NULL,
g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
cdparanoia_signals[UNCORRECTED_ERROR] =
g_signal_new ("uncorrected_error", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (CDParanoiaClass, uncorrected_error), NULL, NULL,
g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_LOCATION,
g_param_spec_string("location","location","location",
NULL, G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_GENERIC_DEVICE,
g_param_spec_string("generic_device","generic_device","generic_device",
NULL, G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_START_TRACK,
g_param_spec_int("start_track","start_track","start_track",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_END_TRACK,
g_param_spec_int("end_track","end_track","end_track",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_LAST_TRACK,
g_param_spec_int("last_track","last_track","last_track",
G_MININT,G_MAXINT,0,G_PARAM_READABLE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CUR_TRACK,
g_param_spec_int("cur_track","cur_track","cur_track",
G_MININT,G_MAXINT,0,G_PARAM_READABLE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_START_SECTOR,
g_param_spec_int("start_sector","start_sector","start_sector",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_END_SECTOR,
g_param_spec_int("end_sector","end_sector","end_sector",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CUR_SECTOR,
g_param_spec_int("cur_sector","cur_sector","cur_sector",
G_MININT,G_MAXINT,0,G_PARAM_READABLE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEFAULT_SECTORS,
g_param_spec_int("default_sectors","default_sectors","default_sectors",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_SEARCH_OVERLAP,
g_param_spec_int("search_overlap","search_overlap","search_overlap",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ENDIAN,
g_param_spec_int("endian","endian","endian",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_READ_SPEED,
g_param_spec_int("read_speed","read_speed","read_speed",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TOC_OFFSET,
g_param_spec_int("toc_offset","toc_offset","toc_offset",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TOC_BIAS,
g_param_spec_boolean("toc_bias","toc_bias","toc_bias",
TRUE,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NEVER_SKIP,
g_param_spec_boolean("never_skip","never_skip","never_skip",
TRUE,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ABORT_ON_SKIP,
g_param_spec_boolean("abort_on_skip","abort_on_skip","abort_on_skip",
TRUE,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PARANOIA_MODE,
g_param_spec_enum("paranoia_mode","paranoia_mode","paranoia_mode",
GST_TYPE_PARANOIA_MODE,0,G_PARAM_READWRITE)); /* CHECKME! */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NO_TRACKS,
g_param_spec_int("no_tracks","no_tracks","no_tracks",
0,G_MAXINT,0,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DISCID,
g_param_spec_string("discid","discid","discid",
NULL, G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_OFFSETS,
g_param_spec_string("offsets","offsets","offsets",
NULL, G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TOTAL_TIME,
g_param_spec_string("total_time","total_time","total_time",
NULL, G_PARAM_READABLE));
gobject_class->set_property = cdparanoia_set_property;
gobject_class->get_property = cdparanoia_get_property;
gstelement_class->change_state = cdparanoia_change_state;
}
static void
cdparanoia_init (CDParanoia *cdparanoia)
{
cdparanoia->srcpad = gst_pad_new_from_template (
GST_PAD_TEMPLATE_GET (cdparanoia_src_factory), "src");
gst_pad_set_get_function (cdparanoia->srcpad, cdparanoia_get);
gst_element_add_pad (GST_ELEMENT (cdparanoia), cdparanoia->srcpad);
cdparanoia->device = g_strdup ("/dev/cdrom");
cdparanoia->generic_device = NULL;
cdparanoia->start_sector = -1;
cdparanoia->end_sector = -1;
cdparanoia->cur_sector = -1;
cdparanoia->start_track = -1;
cdparanoia->cur_track = -1;
cdparanoia->end_track = -1;
cdparanoia->last_track = -1;
cdparanoia->default_sectors = -1;
cdparanoia->search_overlap = -1;
cdparanoia->endian = -1;
cdparanoia->read_speed = -1;
cdparanoia->toc_offset = 0;
cdparanoia->toc_bias = FALSE;
cdparanoia->never_skip = FALSE;
cdparanoia->paranoia_mode = 2;
cdparanoia->abort_on_skip = FALSE;
cdparanoia->cur_sector = 0;
cdparanoia->seq = 0;
cdparanoia->no_tracks=0;
cdparanoia->discid=NULL;
cdparanoia->offsets=NULL;
cdparanoia->total_seconds=0;
}
static void
cdparanoia_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
CDParanoia *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_CDPARANOIA (object));
src = CDPARANOIA (object);
switch (prop_id) {
case ARG_LOCATION:
/* the element must be stopped in order to do this */
/* g_return_if_fail(!GST_FLAG_IS_SET(src,GST_STATE_RUNNING)); */
if (src->device) g_free (src->device);
/* clear the filename if we get a NULL (is that possible?) */
if (!g_ascii_strcasecmp( g_value_get_string (value),""))
src->device = NULL;
/* otherwise set the new filename */
else
src->device = g_strdup (g_value_get_string (value));
break;
case ARG_GENERIC_DEVICE:
/* the element must be stopped in order to do this */
/* g_return_if_fail(!GST_FLAG_IS_SET(src,GST_STATE_RUNNING)); */
if (src->generic_device) g_free (src->generic_device);
/* reset the device if we get a NULL (is that possible?) */
if (!g_ascii_strcasecmp( g_value_get_string (value),""))
src->generic_device = NULL;
/* otherwise set the new filename */
else
src->generic_device = g_strdup (g_value_get_string (value));
break;
case ARG_START_SECTOR:
src->start_sector = g_value_get_int (value);
break;
case ARG_END_SECTOR:
src->end_sector = g_value_get_int (value);
break;
case ARG_START_TRACK:
src->start_track = g_value_get_int (value);
break;
case ARG_END_TRACK:
src->end_track = g_value_get_int (value);
break;
case ARG_DEFAULT_SECTORS:
src->default_sectors = g_value_get_int (value);
break;
case ARG_SEARCH_OVERLAP:
src->search_overlap = g_value_get_int (value);
break;
case ARG_ENDIAN:
src->endian = g_value_get_int (value);
break;
case ARG_READ_SPEED:
src->read_speed = g_value_get_int (value);
break;
case ARG_TOC_OFFSET:
src->toc_offset = g_value_get_int (value);
break;
case ARG_TOC_BIAS:
src->toc_bias = g_value_get_boolean (value);
break;
case ARG_NEVER_SKIP:
src->never_skip = g_value_get_boolean (value);
break;
case ARG_ABORT_ON_SKIP:
src->abort_on_skip = g_value_get_boolean (value);
break;
case ARG_PARANOIA_MODE:
src->paranoia_mode = g_value_get_enum (value);
break;
default:
break;
}
}
static void
cdparanoia_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
CDParanoia *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_CDPARANOIA (object));
src = CDPARANOIA (object);
switch (prop_id) {
case ARG_LOCATION:
g_value_set_string (value, src->device);
break;
case ARG_GENERIC_DEVICE:
g_value_set_string (value, src->generic_device);
break;
case ARG_START_SECTOR:
g_value_set_int (value, src->start_sector);
break;
case ARG_END_SECTOR:
g_value_set_int (value, src->end_sector);
break;
case ARG_CUR_SECTOR:
g_value_set_int (value, src->cur_sector);
break;
case ARG_START_TRACK:
g_value_set_int (value, src->start_track);
break;
case ARG_END_TRACK:
g_value_set_int (value, src->end_track);
break;
case ARG_CUR_TRACK:
g_value_set_int (value, src->cur_track);
break;
case ARG_LAST_TRACK:
g_value_set_int (value, src->last_track);
break;
case ARG_DEFAULT_SECTORS:
g_value_set_int (value, src->default_sectors);
break;
case ARG_SEARCH_OVERLAP:
g_value_set_int (value, src->search_overlap);
break;
case ARG_ENDIAN:
g_value_set_int (value, src->endian);
break;
case ARG_READ_SPEED:
g_value_set_int (value, src->read_speed);
break;
case ARG_TOC_OFFSET:
g_value_set_int (value, src->toc_offset);
break;
case ARG_TOC_BIAS:
g_value_set_boolean (value, src->toc_bias);
break;
case ARG_NEVER_SKIP:
g_value_set_boolean (value, src->never_skip);
break;
case ARG_ABORT_ON_SKIP:
g_value_set_boolean (value, src->abort_on_skip);
break;
case ARG_PARANOIA_MODE:
g_value_set_enum (value, src->paranoia_mode);
break;
case ARG_NO_TRACKS:
g_value_set_int (value, src->no_tracks);
break;
case ARG_DISCID:
g_value_set_string(value, src->discid);
break;
case ARG_OFFSETS:
g_value_set_string(value, src->offsets);
break;
case ARG_TOTAL_TIME:
g_value_set_string(value, src->total_seconds);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void cdparanoia_callback(long inpos, int function) {
}
static GstBuffer*
cdparanoia_get (GstPad *pad)
{
CDParanoia *src;
GstBuffer *buf;
static gint16 *cdda_buf;
g_return_val_if_fail (pad != NULL, NULL);
src = CDPARANOIA (gst_pad_get_parent (pad));
g_return_val_if_fail (GST_FLAG_IS_SET (src, CDPARANOIA_OPEN), NULL);
/* create a new buffer */
buf = gst_buffer_new ();
g_return_val_if_fail (buf, NULL);
/* read a sector */
/* NOTE: if you have a patched cdparanoia, set this to 1 to save cycles */
#if 0
cdda_buf = paranoia_read (src->p, NULL);
#else
cdda_buf = paranoia_read (src->p, cdparanoia_callback);
#endif
/* update current sector and stop things if appropriate */
src->cur_sector++;
if (src->cur_sector == src->end_sector) {
GST_DEBUG (0,"setting EOS");
gst_element_set_eos(GST_ELEMENT(src));
buf = GST_BUFFER (gst_event_new (GST_EVENT_EOS));
}
else {
src->cur_track = cdda_sector_gettrack( src->d, src->cur_sector );
/* have to copy the buffer for now since we don't own it... */
/* FIXME must ask monty about allowing ownership transfer */
GST_BUFFER_DATA (buf) = g_malloc(CD_FRAMESIZE_RAW);
memcpy (GST_BUFFER_DATA (buf), cdda_buf, CD_FRAMESIZE_RAW);
GST_BUFFER_SIZE (buf) = CD_FRAMESIZE_RAW;
}
/* we're done, push the buffer off now */
return buf;
}
/* need some stuff to get a discid (cdparanoia doesn't do cddb but lets
* not stop other ppl doing it ;-) */
typedef int byte;
typedef struct
{
byte m;
byte s;
byte f;
}toc_msf;
/* cdparanoia provides the toc in lba format dang we need it in msf so
* we have to convert it */
static inline void lba_to_msf (const gint lba, byte *m, byte *s, byte *f)
{
gint lba2 = lba;
lba2 += CD_MSF_OFFSET;
lba2 &= 0xffffff;
*m = lba2 / (CD_SECS * CD_FRAMES);
lba2 %= (CD_SECS * CD_FRAMES);
*s = lba2 / CD_FRAMES;
*f = lba2 % CD_FRAMES;
*f += (*m)*60*75;
*f += (*s)*75;
}
void lba_toc_to_msf_toc (TOC *lba_toc, toc_msf *
msf_toc, gint tracks)
{
gint i;
for (i =0; i <= tracks; i++)
lba_to_msf(lba_toc[i].dwStartSector,&msf_toc[i].m,
&msf_toc[i].s, &msf_toc[i].f);
}
/* the cddb hash function */
guint cddb_sum(gint n)
{
guint ret;
ret = 0;
while (n > 0)
{
ret += (n % 10);
n /= 10;
}
return ret;
}
void cddb_discid(gchar *discid,toc_msf *toc, gint tracks)
{
guint i = 0, t = 0, n = 0;
while (i < tracks)
{
n = n + cddb_sum((toc[i].m * 60) + toc[i].s);
i++;
}
t = ((toc[tracks].m * 60) + toc[tracks].s) - ((toc[0].m * 60)
+ toc[0].s);
sprintf (discid,"%08x",(( n % 0xff) << 24 | t << 8 | tracks));
}
/* get all the cddb info at once */
void get_cddb_info(TOC *toc, gint tracks,gchar *discid, gchar *offsets,
gchar *total_seconds)
{
toc_msf msf_toc[MAXTRK];
gint i;
gchar *p = offsets;
lba_toc_to_msf_toc(toc, &msf_toc[0],tracks);
cddb_discid ( discid, &msf_toc[0], tracks);
for (i = 0; i < tracks; i++)
p = (p + sprintf (p, " %d", msf_toc[i].f)) ;
sprintf (total_seconds, "%d", msf_toc[tracks].f/75);
}
/* open the file, necessary to go to RUNNING state */
static gboolean
cdparanoia_open (CDParanoia *src)
{
gint i;
gint paranoia_mode;
g_return_val_if_fail (!GST_FLAG_IS_SET (src, CDPARANOIA_OPEN), FALSE);
GST_DEBUG_ENTER("(\"%s\",...)", gst_element_get_name (GST_ELEMENT (src)));
/* find the device */
if (src->generic_device != NULL) {
src->d = cdda_identify_scsi (src->generic_device, src->device, FALSE, NULL);
} else {
if (src->device != NULL) {
src->d = cdda_identify (src->device, FALSE, NULL);
} else {
src->d = cdda_identify ("/dev/cdrom", FALSE, NULL);
}
}
/* fail if the device couldn't be found */
if (src->d == NULL) {
GST_DEBUG (0,"couldn't open device");
return FALSE;
}
/* set verbosity mode */
cdda_verbose_set (src->d, CDDA_MESSAGE_FORGETIT, CDDA_MESSAGE_FORGETIT);
/* set various other parameters */
if (src->default_sectors != -1) {
if ((src->default_sectors < 0) || (src->default_sectors > 100)) {
GST_DEBUG (0,"default sector read size must be 1 <= n <= 100");
cdda_close (src->d);
src->d = NULL;
return FALSE;
} else {
src->d->nsectors = src->default_sectors;
src->d->bigbuff = src->default_sectors * CD_FRAMESIZE_RAW;
}
}
if (src->search_overlap != -1) {
if ((src->search_overlap < 0) || (src->search_overlap > 75)) {
GST_DEBUG (0,"search overlap must be 0 <= n <= 75");
cdda_close (src->d);
src->d = NULL;
return FALSE;
}
}
/* open the disc */
if (cdda_open (src->d)) {
GST_DEBUG (0,"couldn't open disc");
cdda_close (src->d);
src->d = NULL;
return FALSE;
}
/* set up some more stuff */
src->no_tracks = src->d->tracks;
g_assert(src->discid == NULL);
g_assert(src->offsets == NULL);
g_assert(src->total_seconds == NULL);
/* I don't like this here i would prefer it under get_cddb_info but for somereason
* when leaving the function it clobbers the allocated mem and all is lost bugger
*/
src->discid = g_new0(gchar,20) ;
src->offsets = g_new0(gchar,4096);
src->total_seconds = g_new0(gchar, 4);
get_cddb_info(&src->d->disc_toc[0], src->no_tracks,src->discid,
src->offsets,src->total_seconds);
if (src->toc_bias) {
src->toc_offset -= cdda_track_firstsector (src->d, 1);
}
for (i=0;i<src->d->tracks + 1;i++) {
src->d->disc_toc[i].dwStartSector += src->toc_offset;
}
if (src->read_speed != -1) {
cdda_speed_set (src->d, src->read_speed);
}
/* if the start_track is set, override the start_sector */
if (src->start_track != -1) {
src->start_sector = cdda_track_firstsector (src->d, src->start_track);
/* if neither start_track nor start_sector is set, */
} else if (src->start_sector == -1) {
src->start_sector = cdda_disc_firstsector (src->d);
}
/* if the end_track is set, override the end_sector */
if (src->end_track != -1) {
src->end_sector = cdda_track_lastsector (src->d, src->end_track);
/* if neither end_track nor end_sector is set, */
} else if (src->end_sector == -1) {
src->end_sector = cdda_disc_lastsector (src->d);
}
/* set last_track */
src->last_track = cdda_tracks (src->d);
/* create the paranoia struct and set it up */
src->p = paranoia_init (src->d);
if (src->p == NULL) {
GST_DEBUG (0,"couldn't create paranoia struct");
return FALSE;
}
if (src->paranoia_mode == 0) paranoia_mode = PARANOIA_MODE_DISABLE;
else if (src->paranoia_mode == 1) paranoia_mode = PARANOIA_MODE_OVERLAP;
else paranoia_mode = PARANOIA_MODE_FULL;
if (src->never_skip) paranoia_mode |= PARANOIA_MODE_NEVERSKIP;
paranoia_modeset (src->p, paranoia_mode);
if (src->search_overlap != -1) {
paranoia_overlapset (src->p, src->search_overlap);
}
src->cur_sector = src->start_sector;
paranoia_seek (src->p, src->cur_sector, SEEK_SET);
GST_DEBUG (0,"successfully seek'd to beginning of disk");
GST_FLAG_SET (src, CDPARANOIA_OPEN);
GST_DEBUG_LEAVE("");
return TRUE;
}
/* close the file */
static void
cdparanoia_close (CDParanoia *src)
{
g_return_if_fail (GST_FLAG_IS_SET (src, CDPARANOIA_OPEN));
/* kill the paranoia state */
paranoia_free (src->p);
src->p = NULL;
g_free(src->discid);
src->discid = NULL;
g_free(src->offsets);
src->offsets = NULL;
g_free(src->total_seconds);
src->total_seconds = NULL;
/* close the disc */
cdda_close (src->d);
src->d = NULL;
GST_FLAG_UNSET (src, CDPARANOIA_OPEN);
}
static GstElementStateReturn
cdparanoia_change_state (GstElement *element)
{
g_return_val_if_fail (GST_IS_CDPARANOIA (element), GST_STATE_FAILURE);
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET (element, CDPARANOIA_OPEN))
cdparanoia_close (CDPARANOIA (element));
/* otherwise (READY or higher) we need to open the file */
} else {
if (!GST_FLAG_IS_SET (element, CDPARANOIA_OPEN)) {
if (!cdparanoia_open (CDPARANOIA (element))) {
g_print("failed opening cd\n");
return GST_STATE_FAILURE;
}
}
}
/* if we haven't failed already, give the parent class a chance too ;-) */
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
GstElementFactory *factory;
/* create an elementfactory for the cdparanoia element */
factory = gst_element_factory_new ("cdparanoia", GST_TYPE_CDPARANOIA,
&cdparanoia_details);
g_return_val_if_fail (factory != NULL, FALSE);
/* register the source's caps */
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (cdparanoia_src_factory));
/* and add the cdparanoia element factory to the plugin */
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"cdparanoia",
plugin_init
};
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