+++ /dev/null
-/* 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., 51 Franklin St, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#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>
-
-#include "vcdsrc.h"
-
-#define DEFAULT_DEVICE "/dev/cdrom"
-
-/* VCDSrc signals and args */
-enum
-{
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum
-{
- PROP_0,
- PROP_DEVICE,
- PROP_TRACK,
- PROP_MAX_ERRORS
-};
-
-static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS_ANY);
-
-GST_DEBUG_CATEGORY_STATIC (gst_vcdsrc_debug);
-#define GST_CAT_DEFAULT gst_vcdsrc_debug
-
-static void gst_vcdsrc_uri_handler_init (gpointer g_iface, gpointer iface_data);
-#define gst_vcdsrc_parent_class parent_class
-G_DEFINE_TYPE_WITH_CODE (GstVCDSrc, gst_vcdsrc, GST_TYPE_PUSH_SRC,
- G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER, gst_vcdsrc_uri_handler_init));
-
-static void gst_vcdsrc_finalize (GObject * object);
-
-static void gst_vcdsrc_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_vcdsrc_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static gboolean gst_vcdsrc_start (GstBaseSrc * src);
-static gboolean gst_vcdsrc_stop (GstBaseSrc * src);
-static GstFlowReturn gst_vcdsrc_create (GstPushSrc * src, GstBuffer ** out);
-
-
-static void
-gst_vcdsrc_class_init (GstVCDSrcClass * klass)
-{
- GObjectClass *gobject_class;
- GstElementClass *element_class;
- GstBaseSrcClass *basesrc_class;
- GstPushSrcClass *pushsrc_class;
-
- gobject_class = (GObjectClass *) klass;
- basesrc_class = (GstBaseSrcClass *) klass;
- pushsrc_class = (GstPushSrcClass *) klass;
- element_class = (GstElementClass *) klass;
-
- gobject_class->set_property = gst_vcdsrc_set_property;
- gobject_class->get_property = gst_vcdsrc_get_property;
- gobject_class->finalize = gst_vcdsrc_finalize;
-
- g_object_class_install_property (gobject_class, PROP_DEVICE,
- g_param_spec_string ("device", "Device",
- "CD device location", NULL, G_PARAM_READWRITE));
- g_object_class_install_property (gobject_class, PROP_TRACK,
- g_param_spec_int ("track", "Track",
- "Track number to play", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE));
- g_object_class_install_property (gobject_class, PROP_MAX_ERRORS,
- g_param_spec_int ("max-errors", "Max. errors",
- "Maximum number of errors before bailing out",
- 0, G_MAXINT, 16, G_PARAM_READWRITE));
-
- basesrc_class->start = gst_vcdsrc_start;
- basesrc_class->stop = gst_vcdsrc_stop;
-
- pushsrc_class->create = gst_vcdsrc_create;
-
- GST_DEBUG_CATEGORY_INIT (gst_vcdsrc_debug, "vcdsrc", 0,
- "VideoCD Source element");
-
- gst_element_class_set_static_metadata (element_class, "VCD Source",
- "Source/File",
- "Asynchronous read from VCD disk", "Erik Walthinsen <omega@cse.ogi.edu>");
-
- gst_element_class_add_static_pad_template (element_class, &srctemplate);
-}
-
-static void
-gst_vcdsrc_init (GstVCDSrc * vcdsrc)
-{
- vcdsrc->device = g_strdup (DEFAULT_DEVICE);
- vcdsrc->track = 1;
- vcdsrc->fd = 0;
- vcdsrc->trackoffset = 0;
- vcdsrc->curoffset = 0;
- vcdsrc->bytes_per_read = VCD_BYTES_PER_SECTOR;
- vcdsrc->max_errors = 16;
-}
-
-static void
-gst_vcdsrc_finalize (GObject * object)
-{
- GstVCDSrc *vcdsrc = GST_VCDSRC (object);
-
- g_free (vcdsrc->device);
-
- G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-
-static inline guint64
-gst_vcdsrc_msf (GstVCDSrc * vcdsrc, gint track)
-{
- return (vcdsrc->tracks[track].cdte_addr.msf.minute * 60 +
- vcdsrc->tracks[track].cdte_addr.msf.second) * 75 +
- vcdsrc->tracks[track].cdte_addr.msf.frame;
-}
-
-static void
-gst_vcdsrc_recalculate (GstVCDSrc * vcdsrc)
-{
- /* calculate track offset (beginning of track) */
- vcdsrc->trackoffset = gst_vcdsrc_msf (vcdsrc, vcdsrc->track);
- GST_DEBUG ("track offset is %ld", vcdsrc->trackoffset);
-}
-
-static void
-gst_vcdsrc_set_property (GObject * object, guint prop_id, const GValue * value,
- GParamSpec * pspec)
-{
- GstVCDSrc *src;
-
- src = GST_VCDSRC (object);
-
- switch (prop_id) {
- case PROP_DEVICE:
- g_free (src->device);
- src->device = g_value_dup_string (value);
- break;
- case PROP_TRACK:
- if (g_value_get_int (value) >= 1 &&
- g_value_get_int (value) < src->numtracks) {
- src->track = g_value_get_int (value);
- gst_vcdsrc_recalculate (src);
- }
- break;
- case PROP_MAX_ERRORS:
- src->max_errors = g_value_get_int (value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_vcdsrc_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
-{
- GstVCDSrc *src;
-
- g_return_if_fail (GST_IS_VCDSRC (object));
- src = GST_VCDSRC (object);
-
- switch (prop_id) {
- case PROP_DEVICE:
- g_value_set_string (value, src->device);
- break;
- case PROP_TRACK:
- g_value_set_int (value, src->track);
- break;
- case PROP_MAX_ERRORS:
- g_value_set_int (value, src->max_errors);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-#if 0
-static gboolean
-gst_vcdsrc_srcpad_event (GstPad * pad, GstEvent * event)
-{
- GstVCDSrc *vcdsrc = GST_VCDSRC (gst_pad_get_parent (pad));
- gboolean res = TRUE;
-
- switch (GST_EVENT_TYPE (event)) {
- case GST_EVENT_SEEK:{
- gint64 new_off;
-
- if (GST_EVENT_SEEK_FORMAT (event) != GST_FORMAT_BYTES)
- return FALSE;
-
- new_off = GST_EVENT_SEEK_OFFSET (event);
- switch (GST_EVENT_SEEK_METHOD (event)) {
- case GST_SEEK_METHOD_SET:
- /* no-op */
- break;
- case GST_SEEK_METHOD_CUR:
- new_off += vcdsrc->curoffset * vcdsrc->bytes_per_read;
- break;
- case GST_SEEK_METHOD_END:
- new_off = (gst_vcdsrc_msf (vcdsrc, vcdsrc->track + 1) -
- vcdsrc->trackoffset) * vcdsrc->bytes_per_read - new_off;
- break;
- default:
- return FALSE;
- }
-
- if (new_off < 0 ||
- new_off > (gst_vcdsrc_msf (vcdsrc, vcdsrc->track + 1) -
- vcdsrc->trackoffset) * vcdsrc->bytes_per_read)
- return FALSE;
-
- vcdsrc->curoffset = new_off / vcdsrc->bytes_per_read;
- vcdsrc->tempoffset = new_off % vcdsrc->bytes_per_read;
- vcdsrc->discont = TRUE;
- if (GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH)
- vcdsrc->flush = TRUE;
- break;
- }
- default:
- res = FALSE;
- break;
- }
-
- gst_event_unref (event);
-
- return res;
-}
-#endif
-
-#if 0
-static gboolean
-gst_vcdsrc_srcpad_query (GstPad * pad, GstQueryType type,
- GstFormat * format, gint64 * value)
-{
- GstVCDSrc *vcdsrc = GST_VCDSRC (gst_pad_get_parent (pad));
- gboolean res = TRUE;
-
- if (*format != GST_FORMAT_BYTES)
- return FALSE;
-
- switch (type) {
- case GST_QUERY_TOTAL:
- *value = (gst_vcdsrc_msf (vcdsrc, vcdsrc->track + 1) -
- vcdsrc->trackoffset) * vcdsrc->bytes_per_read;
- break;
- case GST_QUERY_POSITION:
- *value = vcdsrc->curoffset * vcdsrc->bytes_per_read;
- break;
- default:
- res = FALSE;
- break;
- }
-
- return res;
-}
-#endif
-
-static GstFlowReturn
-gst_vcdsrc_create (GstPushSrc * src, GstBuffer ** buf)
-{
- GstVCDSrc *vcdsrc;
- GstBuffer *outbuf;
- GstMapInfo map_info;
- gulong offset;
- struct cdrom_msf *msf;
- gint error_count = 0;
-
- vcdsrc = GST_VCDSRC (src);
-
- offset = vcdsrc->trackoffset + vcdsrc->curoffset;
- if (offset >= gst_vcdsrc_msf (vcdsrc, vcdsrc->track + 1))
- goto eos;
-
- /* create the buffer */
- outbuf = gst_buffer_new_allocate (NULL, vcdsrc->bytes_per_read, NULL);
- if (!outbuf)
- goto error_unmapped;
-
- if (!gst_buffer_map (outbuf, &map_info, GST_MAP_READWRITE))
- goto error_unmapped;
-
- msf = (struct cdrom_msf *) map_info.data;
-
-
-read:
- /* read it in from the device */
- msf->cdmsf_frame0 = offset % 75;
- msf->cdmsf_sec0 = (offset / 75) % 60;
- msf->cdmsf_min0 = (offset / (75 * 60));
-
- GST_LOG ("msf is %d:%d:%d", msf->cdmsf_min0, msf->cdmsf_sec0,
- msf->cdmsf_frame0);
-
- if (ioctl (vcdsrc->fd, CDROMREADRAW, msf) < 0) {
- if (++error_count <= vcdsrc->max_errors) {
- vcdsrc->curoffset++;
- offset++;
- goto read;
- }
-
- GST_ELEMENT_ERROR (vcdsrc, RESOURCE, READ, (NULL),
- ("Read from cdrom at %d:%d:%d failed: %s",
- msf->cdmsf_min0, msf->cdmsf_sec0, msf->cdmsf_frame0,
- strerror (errno)));
- goto error_mapped;
- }
-
- gst_buffer_unmap (outbuf, &map_info);
- vcdsrc->curoffset += 1;
-
- *buf = outbuf;
- return GST_FLOW_OK;
-
- /* ERRORS */
-error_mapped:
- gst_buffer_unmap (outbuf, &map_info);
-error_unmapped:
- if (outbuf)
- gst_buffer_unref (outbuf);
- return GST_FLOW_ERROR;
-eos:
- {
- GST_DEBUG_OBJECT (vcdsrc, "got eos");
- return GST_FLOW_EOS;
- }
-}
-
-/* open the file, necessary to go to RUNNING state */
-static gboolean
-gst_vcdsrc_start (GstBaseSrc * bsrc)
-{
- int i;
- GstVCDSrc *src = GST_VCDSRC (bsrc);
- struct stat buf;
-
- /* open the device */
- src->fd = open (src->device, O_RDONLY);
- if (src->fd < 0)
- goto open_failed;
-
- if (fstat (src->fd, &buf) < 0)
- goto toc_failed;
- /* If it's not a block device, then we need to try and
- * parse the cue file if there is one
- * FIXME implement */
- if (!S_ISBLK (buf.st_mode)) {
- GST_DEBUG ("Reading CUE files not handled yet, cannot process %s",
- GST_STR_NULL (src->device));
- goto toc_failed;
- }
-
- /* read the table of contents */
- if (ioctl (src->fd, CDROMREADTOCHDR, &src->tochdr))
- goto toc_failed;
-
- /* allocate enough track structs for disk */
- src->numtracks = (src->tochdr.cdth_trk1 - src->tochdr.cdth_trk0) + 1;
- src->tracks = g_new (struct cdrom_tocentry, src->numtracks + 1);
-
- /* read each track entry */
- for (i = 0; i <= src->numtracks; i++) {
- src->tracks[i].cdte_track = i == src->numtracks ? CDROM_LEADOUT : i + 1;
- src->tracks[i].cdte_format = CDROM_MSF;
- if (ioctl (src->fd, CDROMREADTOCENTRY, &src->tracks[i]))
- goto toc_entry_failed;
-
- GST_DEBUG ("track %d begins at %d:%02d.%02d", i,
- src->tracks[i].cdte_addr.msf.minute,
- src->tracks[i].cdte_addr.msf.second,
- src->tracks[i].cdte_addr.msf.frame);
- }
-
- src->curoffset = 0;
-
- gst_vcdsrc_recalculate (src);
-
- return TRUE;
-
- /* ERRORS */
-open_failed:
- {
- GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), GST_ERROR_SYSTEM);
- return FALSE;
- }
-toc_failed:
- {
- GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), GST_ERROR_SYSTEM);
- close (src->fd);
- return FALSE;
- }
-toc_entry_failed:
- {
- GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), GST_ERROR_SYSTEM);
- g_free (src->tracks);
- close (src->fd);
- return FALSE;
- }
-}
-
-/* close the file */
-static gboolean
-gst_vcdsrc_stop (GstBaseSrc * bsrc)
-{
- GstVCDSrc *src = GST_VCDSRC (bsrc);
-
- /* close the file */
- close (src->fd);
-
- /* zero out a lot of our state */
- src->fd = 0;
- src->curoffset = 0;
-
- g_free (src->tracks);
-
- return TRUE;
-}
-
-/*
- * URI interface.
- */
-
-static GstURIType
-gst_vcdsrc_uri_get_type (GType type)
-{
- return GST_URI_SRC;
-}
-
-static const gchar *const *
-gst_vcdsrc_uri_get_protocols (GType type)
-{
- static const gchar *protocols[] = { "vcd", NULL };
-
- return protocols;
-}
-
-static gchar *
-gst_vcdsrc_uri_get_uri (GstURIHandler * handler)
-{
- GstVCDSrc *src = GST_VCDSRC (handler);
- gchar *result;
-
- GST_OBJECT_LOCK (src);
- result = g_strdup_printf ("vcd://%d", src->track);
- GST_OBJECT_UNLOCK (src);
-
- return result;
-}
-
-static gboolean
-gst_vcdsrc_uri_set_uri (GstURIHandler * handler, const gchar * uri,
- GError ** error)
-{
- GstVCDSrc *src = GST_VCDSRC (handler);
- gchar *location = NULL;
- gint tracknr;
-
- GST_DEBUG_OBJECT (src, "setting uri '%s'", uri);
-
- if (!gst_uri_has_protocol (uri, "vcd"))
- goto wrong_protocol;
-
- /* parse out the track in the location */
- if (!(location = gst_uri_get_location (uri)))
- goto no_location;
-
- GST_DEBUG_OBJECT (src, "have location '%s'", location);
-
- /*
- * URI structure: vcd:///path/to/device,track-num
- */
- if (g_str_has_prefix (uri, "vcd://")) {
- GST_OBJECT_LOCK (src);
- g_free (src->device);
- if (strlen (uri) > 6)
- src->device = g_strdup (uri + 6);
- else
- src->device = g_strdup (DEFAULT_DEVICE);
- GST_DEBUG_OBJECT (src, "configured device %s", src->device);
- GST_OBJECT_UNLOCK (src);
- }
-
- /* Parse the track number */
- {
- char **split;
-
- split = g_strsplit (location, ",", 2);
- if (split == NULL || *split == NULL || split[1] == NULL) {
- tracknr = 1;
- } else if (sscanf (split[1], "%d", &tracknr) != 1 || tracknr < 1) {
- g_strfreev (split);
- goto invalid_location;
- }
- g_strfreev (split);
- }
-
- GST_OBJECT_LOCK (src);
- src->track = tracknr;
- GST_DEBUG_OBJECT (src, "configured track %d", src->track);
- GST_OBJECT_UNLOCK (src);
-
- g_free (location);
-
- return TRUE;
-
- /* ERRORS */
-wrong_protocol:
- {
- GST_ERROR_OBJECT (src, "Wrong protocol, uri = %s", uri);
- g_set_error (error, GST_URI_ERROR, GST_URI_ERROR_UNSUPPORTED_PROTOCOL,
- "Wrong protocol, uri = %s", uri);
- return FALSE;
- }
-no_location:
- {
- GST_ERROR_OBJECT (src, "No location specified");
- g_set_error_literal (error, GST_URI_ERROR, GST_URI_ERROR_BAD_URI,
- "No location specified");
- return FALSE;
- }
-invalid_location:
- {
- GST_ERROR_OBJECT (src, "Invalid location '%s' in URI '%s'", location, uri);
- g_set_error (error, GST_URI_ERROR, GST_URI_ERROR_BAD_URI,
- "Invalid location '%s' in URI '%s'", location, uri);
- g_free (location);
- return FALSE;
- }
-}
-
-static void
-gst_vcdsrc_uri_handler_init (gpointer g_iface, gpointer iface_data)
-{
- GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
-
- iface->get_type = gst_vcdsrc_uri_get_type;
- iface->get_protocols = gst_vcdsrc_uri_get_protocols;
- iface->get_uri = gst_vcdsrc_uri_get_uri;
- iface->set_uri = gst_vcdsrc_uri_set_uri;
-}
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
- return gst_element_register (plugin, "vcdsrc", GST_RANK_SECONDARY,
- GST_TYPE_VCDSRC);
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- vcdsrc,
- "Asynchronous read from VCD disk",
- plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)