From 4d78305dc7d16fe31945da50d7027b337be23a84 Mon Sep 17 00:00:00 2001 From: "Ronald S. Bultje" Date: Mon, 9 Sep 2002 20:14:15 +0000 Subject: [PATCH] Patch as given in http://bugzilla.gnome.org/show_bug.cgi?id=92262, thanks to goraxe@ntlworld.com Original commit message from CVS: Patch as given in http://bugzilla.gnome.org/show_bug.cgi?id=92262, thanks to goraxe@ntlworld.com --- ext/cdparanoia/gstcdparanoia.c | 152 +++++++++++++++++++++++++++++++++++++++-- ext/cdparanoia/gstcdparanoia.h | 6 ++ 2 files changed, 153 insertions(+), 5 deletions(-) diff --git a/ext/cdparanoia/gstcdparanoia.c b/ext/cdparanoia/gstcdparanoia.c index b79cb6f..cef79f1 100644 --- a/ext/cdparanoia/gstcdparanoia.c +++ b/ext/cdparanoia/gstcdparanoia.c @@ -31,6 +31,10 @@ #include #include #include +/* 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" @@ -113,6 +117,10 @@ enum { ARG_ABORT_ON_SKIP, ARG_PARANOIA_MODE, ARG_SMILIE, + ARG_NO_TRACKS, + ARG_DISCID, + ARG_OFFSETS, + ARG_TOTAL_TIME, }; @@ -231,6 +239,18 @@ cdparanoia_class_init (CDParanoiaClass *klass) 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; @@ -267,6 +287,11 @@ cdparanoia_init (CDParanoia *cdparanoia) cdparanoia->cur_sector = 0; cdparanoia->seq = 0; + + cdparanoia->no_tracks=0; + cdparanoia->discid=NULL; + cdparanoia->offsets=NULL; + cdparanoia->total_seconds=0; } @@ -284,11 +309,10 @@ cdparanoia_set_property (GObject *object, guint prop_id, const GValue *value, GP 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_value_get_string (value) == NULL) - src->device = NULL; + 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)); @@ -299,7 +323,7 @@ cdparanoia_set_property (GObject *object, guint prop_id, const GValue *value, GP if (src->generic_device) g_free (src->generic_device); /* reset the device if we get a NULL (is that possible?) */ - if (g_value_get_string (value) == NULL) + if (!g_ascii_strcasecmp( g_value_get_string (value),"")) src->generic_device = NULL; /* otherwise set the new filename */ else @@ -415,6 +439,18 @@ cdparanoia_get_property (GObject *object, guint prop_id, GValue *value, GParamSp 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; @@ -470,6 +506,87 @@ cdparanoia_get (GstPad *pad) 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) @@ -531,6 +648,23 @@ cdparanoia_open (CDParanoia *src) } /* 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); } @@ -597,7 +731,15 @@ cdparanoia_close (CDParanoia *src) /* 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; diff --git a/ext/cdparanoia/gstcdparanoia.h b/ext/cdparanoia/gstcdparanoia.h index c0cc3cd..45848fc 100644 --- a/ext/cdparanoia/gstcdparanoia.h +++ b/ext/cdparanoia/gstcdparanoia.h @@ -92,6 +92,12 @@ struct _CDParanoia { gulong cur_sector; /* current offset in file */ gulong seq; /* buffer sequence number */ + + /* hacks by Gordon Irving */ + gint no_tracks; + gchar *discid; + gchar *offsets; + gchar *total_seconds; }; struct _CDParanoiaClass { -- 2.7.4