/* -*- Mode: C; tab-width: 2; indent-tabs-mode: t; c-basic-offset: 2 -*- */ /* GStreamer * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> * <2005> Wim Taymans <wim@fluendo.com> * <2005> Tim-Philipp Müller <tim centricular net> * * 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include <string.h> #include <errno.h> #include <stdio.h> #include "gstcdparanoiasrc.h" #include "gst/gst-i18n-plugin.h" enum { TRANSPORT_ERROR, UNCORRECTED_ERROR, NUM_SIGNALS }; enum { PROP_0, PROP_READ_SPEED, PROP_PARANOIA_MODE, PROP_SEARCH_OVERLAP, PROP_GENERIC_DEVICE, PROP_CACHE_SIZE }; #define DEFAULT_READ_SPEED -1 #define DEFAULT_SEARCH_OVERLAP -1 #define DEFAULT_PARANOIA_MODE PARANOIA_MODE_FRAGMENT #define DEFAULT_GENERIC_DEVICE NULL #define DEFAULT_CACHE_SIZE -1 GST_DEBUG_CATEGORY_STATIC (gst_cd_paranoia_src_debug); #define GST_CAT_DEFAULT gst_cd_paranoia_src_debug #define gst_cd_paranoia_src_parent_class parent_class G_DEFINE_TYPE (GstCdParanoiaSrc, gst_cd_paranoia_src, GST_TYPE_AUDIO_CD_SRC); static void gst_cd_paranoia_src_finalize (GObject * obj); static void gst_cd_paranoia_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static void gst_cd_paranoia_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static GstBuffer *gst_cd_paranoia_src_read_sector (GstAudioCdSrc * src, gint sector); static gboolean gst_cd_paranoia_src_open (GstAudioCdSrc * src, const gchar * device); static void gst_cd_paranoia_src_close (GstAudioCdSrc * src); /* We use these to serialize calls to paranoia_read() among several * cdparanoiasrc instances. We do this because it's the only reasonably * easy way to find out the calling object from within the paranoia * callback, and we need the object instance in there to emit our signals */ static GstCdParanoiaSrc *cur_cb_source; static GMutex cur_cb_mutex; static gint cdpsrc_signals[NUM_SIGNALS]; /* all 0 */ #define GST_TYPE_CD_PARANOIA_MODE (gst_cd_paranoia_mode_get_type()) static GType gst_cd_paranoia_mode_get_type (void) { static const GFlagsValue paranoia_modes[] = { {PARANOIA_MODE_DISABLE, "PARANOIA_MODE_DISABLE", "disable"}, {PARANOIA_MODE_FRAGMENT, "PARANOIA_MODE_FRAGMENT", "fragment"}, {PARANOIA_MODE_OVERLAP, "PARANOIA_MODE_OVERLAP", "overlap"}, {PARANOIA_MODE_SCRATCH, "PARANOIA_MODE_SCRATCH", "scratch"}, {PARANOIA_MODE_REPAIR, "PARANOIA_MODE_REPAIR", "repair"}, {PARANOIA_MODE_FULL, "PARANOIA_MODE_FULL", "full"}, {0, NULL, NULL}, }; static GType type; /* 0 */ if (!type) { type = g_flags_register_static ("GstCdParanoiaMode", paranoia_modes); } return type; } static void gst_cd_paranoia_src_init (GstCdParanoiaSrc * src) { src->d = NULL; src->p = NULL; src->next_sector = -1; src->search_overlap = DEFAULT_SEARCH_OVERLAP; src->paranoia_mode = DEFAULT_PARANOIA_MODE; src->read_speed = DEFAULT_READ_SPEED; src->generic_device = g_strdup (DEFAULT_GENERIC_DEVICE); src->cache_size = DEFAULT_CACHE_SIZE; } static void gst_cd_paranoia_src_class_init (GstCdParanoiaSrcClass * klass) { GstAudioCdSrcClass *audiocdsrc_class = GST_AUDIO_CD_SRC_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GObjectClass *gobject_class = G_OBJECT_CLASS (klass); gobject_class->set_property = gst_cd_paranoia_src_set_property; gobject_class->get_property = gst_cd_paranoia_src_get_property; gobject_class->finalize = gst_cd_paranoia_src_finalize; gst_element_class_set_static_metadata (element_class, "CD Audio (cdda) Source, Paranoia IV", "Source/File", "Read audio from CD in paranoid mode", "Erik Walthinsen <omega@cse.ogi.edu>, Wim Taymans <wim@fluendo.com>"); audiocdsrc_class->open = gst_cd_paranoia_src_open; audiocdsrc_class->close = gst_cd_paranoia_src_close; audiocdsrc_class->read_sector = gst_cd_paranoia_src_read_sector; g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_GENERIC_DEVICE, g_param_spec_string ("generic-device", "Generic device", "Use specified generic scsi device", DEFAULT_GENERIC_DEVICE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_READ_SPEED, g_param_spec_int ("read-speed", "Read speed", "Read from device at specified speed (-1 and 0 = full speed)", -1, G_MAXINT, DEFAULT_READ_SPEED, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PARANOIA_MODE, g_param_spec_flags ("paranoia-mode", "Paranoia mode", "Type of checking to perform", GST_TYPE_CD_PARANOIA_MODE, DEFAULT_PARANOIA_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SEARCH_OVERLAP, g_param_spec_int ("search-overlap", "Search overlap", "Force minimum overlap search during verification to n sectors", -1, 75, DEFAULT_SEARCH_OVERLAP, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstCdParanoiaSrc:cache-size: * * Set CD cache size to n sectors (-1 = auto) */ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_CACHE_SIZE, g_param_spec_int ("cache-size", "Cache size", "Set CD cache size to n sectors (-1 = auto)", -1, G_MAXINT, DEFAULT_CACHE_SIZE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /* FIXME: we don't really want signals for this, but messages on the bus, * but then we can't check any longer whether anyone is interested in them */ /** * GstCdParanoiaSrc::transport-error: * @cdparanoia: The CdParanoia instance * @sector: The sector number at which the error was encountered. * * This signal is emitted whenever an error occurs while reading. * CdParanoia will attempt to recover the data. */ cdpsrc_signals[TRANSPORT_ERROR] = g_signal_new ("transport-error", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstCdParanoiaSrcClass, transport_error), NULL, NULL, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT); /** * GstCdParanoiaSrc::uncorrected-error: * @cdparanoia: The CdParanoia instance * @sector: The sector number at which the error was encountered. * * This signal is emitted whenever an uncorrectable error occurs while * reading. The data could not be read. */ cdpsrc_signals[UNCORRECTED_ERROR] = g_signal_new ("uncorrected-error", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstCdParanoiaSrcClass, uncorrected_error), NULL, NULL, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT); } static gboolean gst_cd_paranoia_src_open (GstAudioCdSrc * audiocdsrc, const gchar * device) { GstCdParanoiaSrc *src = GST_CD_PARANOIA_SRC (audiocdsrc); gint i, cache_size; GST_DEBUG_OBJECT (src, "trying to open device %s (generic-device=%s) ...", device, GST_STR_NULL (src->generic_device)); /* find the device */ if (src->generic_device != NULL) { src->d = cdda_identify_scsi (src->generic_device, device, FALSE, NULL); } else { if (device != NULL) { src->d = cdda_identify (device, FALSE, NULL); } else { src->d = cdda_identify ("/dev/cdrom", FALSE, NULL); } } /* fail if the device couldn't be found */ if (src->d == NULL) goto no_device; /* set verbosity mode */ cdda_verbose_set (src->d, CDDA_MESSAGE_FORGETIT, CDDA_MESSAGE_FORGETIT); /* open the disc */ if (cdda_open (src->d)) goto open_failed; GST_INFO_OBJECT (src, "set read speed to %d", src->read_speed); cdda_speed_set (src->d, src->read_speed); for (i = 1; i < src->d->tracks + 1; i++) { GstAudioCdSrcTrack track = { 0, }; track.num = i; track.is_audio = IS_AUDIO (src->d, i - 1); track.start = cdda_track_firstsector (src->d, i); track.end = cdda_track_lastsector (src->d, i); track.tags = NULL; gst_audio_cd_src_add_track (GST_AUDIO_CD_SRC (src), &track); } /* create the paranoia struct and set it up */ src->p = paranoia_init (src->d); if (src->p == NULL) goto init_failed; paranoia_modeset (src->p, src->paranoia_mode); GST_INFO_OBJECT (src, "set paranoia mode to 0x%02x", src->paranoia_mode); if (src->search_overlap != -1) { paranoia_overlapset (src->p, src->search_overlap); GST_INFO_OBJECT (src, "search overlap set to %u", src->search_overlap); } cache_size = src->cache_size; if (cache_size == -1) { /* if paranoia mode is low (the default), assume we're doing playback */ if (src->paranoia_mode <= PARANOIA_MODE_FRAGMENT) cache_size = 150; else cache_size = paranoia_cachemodel_size (src->p, -1); } paranoia_cachemodel_size (src->p, cache_size); GST_INFO_OBJECT (src, "set cachemodel size to %u", cache_size); src->next_sector = -1; return TRUE; /* ERRORS */ no_device: { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (_("Could not open CD device for reading.")), ("cdda_identify failed")); return FALSE; } open_failed: { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (_("Could not open CD device for reading.")), ("cdda_open failed")); cdda_close (src->d); src->d = NULL; return FALSE; } init_failed: { GST_ELEMENT_ERROR (src, LIBRARY, INIT, ("failed to initialize paranoia"), ("failed to initialize paranoia")); return FALSE; } } static void gst_cd_paranoia_src_close (GstAudioCdSrc * audiocdsrc) { GstCdParanoiaSrc *src = GST_CD_PARANOIA_SRC (audiocdsrc); if (src->p) { paranoia_free (src->p); src->p = NULL; } if (src->d) { cdda_close (src->d); src->d = NULL; } src->next_sector = -1; } static void gst_cd_paranoia_dummy_callback (long inpos, int function) { /* Used by instanced where no one is interested what's happening here */ } static void gst_cd_paranoia_paranoia_callback (long inpos, int function) { GstCdParanoiaSrc *src = cur_cb_source; gint sector = (gint) (inpos / CD_FRAMEWORDS); switch (function) { case PARANOIA_CB_SKIP: GST_INFO_OBJECT (src, "Skip at sector %d", sector); g_signal_emit (src, cdpsrc_signals[UNCORRECTED_ERROR], 0, sector); break; case PARANOIA_CB_READERR: GST_INFO_OBJECT (src, "Transport error at sector %d", sector); g_signal_emit (src, cdpsrc_signals[TRANSPORT_ERROR], 0, sector); break; default: break; } } static gboolean gst_cd_paranoia_src_signal_is_being_watched (GstCdParanoiaSrc * src, gint sig) { return g_signal_has_handler_pending (src, cdpsrc_signals[sig], 0, FALSE); } static GstBuffer * gst_cd_paranoia_src_read_sector (GstAudioCdSrc * audiocdsrc, gint sector) { GstCdParanoiaSrc *src = GST_CD_PARANOIA_SRC (audiocdsrc); GstBuffer *buf; gboolean do_serialize; gint16 *cdda_buf; #if 0 /* Do we really need to output this? (tpm) */ /* Due to possible autocorrections of start sectors of audio tracks on * multisession cds, we can maybe not compute the correct discid. * So issue a warning. * See cdparanoia/interface/common-interface.c:FixupTOC */ if (src->d && src->d->cd_extra) { g_message ("DiscID on multisession discs might be broken. Use at own risk."); } #endif if (src->next_sector == -1 || src->next_sector != sector) { if (paranoia_seek (src->p, sector, SEEK_SET) == -1) goto seek_failed; GST_DEBUG_OBJECT (src, "successfully seeked to sector %d", sector); src->next_sector = sector; } do_serialize = gst_cd_paranoia_src_signal_is_being_watched (src, TRANSPORT_ERROR) || gst_cd_paranoia_src_signal_is_being_watched (src, UNCORRECTED_ERROR); if (do_serialize) { GST_LOG_OBJECT (src, "Signal handlers connected, serialising access"); g_mutex_lock (&cur_cb_mutex); GST_LOG_OBJECT (src, "Got lock"); cur_cb_source = src; cdda_buf = paranoia_read (src->p, gst_cd_paranoia_paranoia_callback); cur_cb_source = NULL; GST_LOG_OBJECT (src, "Releasing lock"); g_mutex_unlock (&cur_cb_mutex); } else { cdda_buf = paranoia_read (src->p, gst_cd_paranoia_dummy_callback); } if (cdda_buf == NULL) goto read_failed; buf = gst_buffer_new_and_alloc (CD_FRAMESIZE_RAW); gst_buffer_fill (buf, 0, cdda_buf, CD_FRAMESIZE_RAW); /* cdda base class will take care of timestamping etc. */ ++src->next_sector; return buf; /* ERRORS */ seek_failed: { GST_WARNING_OBJECT (src, "seek to sector %d failed!", sector); GST_ELEMENT_ERROR (src, RESOURCE, SEEK, (_("Could not seek CD.")), ("paranoia_seek to %d failed: %s", sector, g_strerror (errno))); return NULL; } read_failed: { GST_WARNING_OBJECT (src, "read at sector %d failed!", sector); GST_ELEMENT_ERROR (src, RESOURCE, READ, (_("Could not read CD.")), ("paranoia_read at %d failed: %s", sector, g_strerror (errno))); return NULL; } } static void gst_cd_paranoia_src_finalize (GObject * obj) { GstCdParanoiaSrc *src = GST_CD_PARANOIA_SRC (obj); g_free (src->generic_device); G_OBJECT_CLASS (parent_class)->finalize (obj); } static void gst_cd_paranoia_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstCdParanoiaSrc *src = GST_CD_PARANOIA_SRC (object); GST_OBJECT_LOCK (src); switch (prop_id) { case PROP_GENERIC_DEVICE:{ g_free (src->generic_device); src->generic_device = g_value_dup_string (value); if (src->generic_device && src->generic_device[0] == '\0') { g_free (src->generic_device); src->generic_device = NULL; } break; } case PROP_READ_SPEED:{ src->read_speed = g_value_get_int (value); if (src->read_speed == 0) src->read_speed = -1; break; } case PROP_PARANOIA_MODE:{ src->paranoia_mode = g_value_get_flags (value) & PARANOIA_MODE_FULL; break; } case PROP_SEARCH_OVERLAP:{ src->search_overlap = g_value_get_int (value); break; } case PROP_CACHE_SIZE:{ src->cache_size = g_value_get_int (value); break; } default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } GST_OBJECT_UNLOCK (src); } static void gst_cd_paranoia_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstCdParanoiaSrc *src = GST_CD_PARANOIA_SRC (object); GST_OBJECT_LOCK (src); switch (prop_id) { case PROP_READ_SPEED: g_value_set_int (value, src->read_speed); break; case PROP_PARANOIA_MODE: g_value_set_flags (value, src->paranoia_mode); break; case PROP_GENERIC_DEVICE: g_value_set_string (value, src->generic_device); break; case PROP_SEARCH_OVERLAP: g_value_set_int (value, src->search_overlap); break; case PROP_CACHE_SIZE: g_value_set_int (value, src->cache_size); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } GST_OBJECT_UNLOCK (src); } static gboolean plugin_init (GstPlugin * plugin) { GST_DEBUG_CATEGORY_INIT (gst_cd_paranoia_src_debug, "cdparanoiasrc", 0, "CD Paranoia Source"); if (!gst_element_register (plugin, "cdparanoiasrc", GST_RANK_SECONDARY, GST_TYPE_CD_PARANOIA_SRC)) return FALSE; #ifdef ENABLE_NLS GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE, LOCALEDIR); bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR); bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); #endif return TRUE; } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, cdparanoia, "Read audio from CD in paranoid mode", plugin_init, GST_PLUGINS_BASE_VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)