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diff --git a/ext/cdio/gstcdiocddasrc.c b/ext/cdio/gstcdiocddasrc.c
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-/* GStreamer
- * Copyright (C) 2006 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., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/**
- * SECTION:element-cdiocddasrc
- * @short_description: Reads raw audio from an Audio CD
- * @see_also: GstCdParanoiaSrc, GstCddaBaseSrc
- *
- * <refsect2>
- * <para>
- * cdiocddasrc reads and extracts raw audio from Audio CDs. It can operate
- * in one of two modes:
- * <itemizedlist>
- * <listitem><para>
- * treat each track as a separate stream, counting time from the start
- * of the track to the end of the track and posting EOS at the end of
- * a track, or
- * </para></listitem>
- * <listitem><para>
- * treat the entire disc as one stream, counting time from the start of
- * the first track to the end of the last track, posting EOS only at
- * the end of the last track.
- * </para></listitem>
- * </itemizedlist>
- * </para>
- * <para>
- * With a recent-enough version of libcdio, the element will extract
- * CD-TEXT if this is supported by the CD-drive and CD-TEXT information
- * is available on the CD. The information will be posted on the bus in
- * form of a tag message.
- * </para>
- * <para>
- * When opened, the element will also calculate a CDDB disc ID and a
- * MusicBrainz disc ID, which applications can use to query online
- * databases for artist/title information. These disc IDs will also be
- * posted on the bus as part of the tag messages.
- * </para>
- * <para>
- * cdiocddasrc supports the GstUriHandler interface, so applications can use
- * playbin with cdda://&lt;track-number&gt; URIs for playback (they will have
- * to connect to playbin's notify::source signal and set the device on the
- * cd source in the notify callback if they want to set the device property).
- * Applications should use seeks in "track" format to switch between different
- * tracks of the same CD (passing a new cdda:// URI to playbin involves opening
- * and closing the CD device, which is much slower).
- * </para>
- * <title>Example launch line</title>
- * <para>
- * <programlisting>
- * gst-launch cdiocddasrc track=5 device=/dev/cdrom ! audioconvert ! vorbisenc ! oggmux ! filesink location=track5.ogg
- * </programlisting>
- * This pipeline extracts track 5 of the audio CD and encodes it into an
- * Ogg/Vorbis file.
- * </para>
- * </refsect2>
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "gstcdio.h"
-#include "gstcdiocddasrc.h"
-
-#include <gst/gst.h>
-#include "gst/gst-i18n-plugin.h"
-
-#include <sys/types.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-#define DEFAULT_READ_SPEED -1
-
-enum
-{
- PROP_0 = 0,
- PROP_READ_SPEED
-};
-
-static const GstElementDetails gst_cdio_cdda_src_details =
-GST_ELEMENT_DETAILS ("CD audio source (CDDA)",
- "Source/File",
- "Read audio from CD using libcdio",
- "Tim-Philipp Müller <tim centricular net>");
-
-GST_BOILERPLATE (GstCdioCddaSrc, gst_cdio_cdda_src, GstCddaBaseSrc,
- GST_TYPE_CDDA_BASE_SRC);
-
-static void gst_cdio_cdda_src_finalize (GObject * obj);
-static void gst_cdio_cdda_src_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_cdio_cdda_src_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static gchar *gst_cdio_cdda_src_get_default_device (GstCddaBaseSrc * src);
-static GstBuffer *gst_cdio_cdda_src_read_sector (GstCddaBaseSrc * src,
- gint sector);
-static gboolean gst_cdio_cdda_src_open (GstCddaBaseSrc * src,
- const gchar * device);
-static void gst_cdio_cdda_src_close (GstCddaBaseSrc * src);
-
-static void
-gst_cdio_cdda_src_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_set_details (element_class, &gst_cdio_cdda_src_details);
-}
-
-static gchar *
-gst_cdio_cdda_src_get_default_device (GstCddaBaseSrc * cddabasesrc)
-{
- GstCdioCddaSrc *src;
- gchar *default_device, *ret;
-
- src = GST_CDIO_CDDA_SRC (cddabasesrc);
-
- /* src->cdio may be NULL here */
- default_device = cdio_get_default_device (src->cdio);
-
- ret = g_strdup (default_device);
- free (default_device);
-
- GST_LOG_OBJECT (src, "returning default device: %s", GST_STR_NULL (ret));
-
- return ret;
-}
-
-static gchar **
-gst_cdio_cdda_src_probe_devices (GstCddaBaseSrc * cddabasesrc)
-{
- char **devices, **ret, **d;
-
- /* FIXME: might return the same hardware device twice, e.g.
- * as /dev/cdrom and /dev/dvd - gotta do something more sophisticated */
- devices = cdio_get_devices (DRIVER_DEVICE);
-
- if (devices == NULL)
- goto no_devices;
-
- if (*devices == NULL)
- goto empty_devices;
-
- ret = g_strdupv (devices);
- for (d = devices; *d != NULL; ++d) {
- GST_DEBUG_OBJECT (cddabasesrc, "device: %s", GST_STR_NULL (*d));
- free (*d);
- }
- free (devices);
-
- return ret;
-
- /* ERRORS */
-no_devices:
- {
- GST_DEBUG_OBJECT (cddabasesrc, "no devices found");
- return NULL;
- }
-empty_devices:
- {
- GST_DEBUG_OBJECT (cddabasesrc, "empty device list found");
- free (devices);
- return NULL;
- }
-}
-
-static GstBuffer *
-gst_cdio_cdda_src_read_sector (GstCddaBaseSrc * cddabasesrc, gint sector)
-{
- GstCdioCddaSrc *src;
- GstBuffer *buf;
-
- src = GST_CDIO_CDDA_SRC (cddabasesrc);
-
- /* can't use pad_alloc because we can't return the GstFlowReturn */
- buf = gst_buffer_new_and_alloc (CDIO_CD_FRAMESIZE_RAW);
-
- if (cdio_read_audio_sector (src->cdio, GST_BUFFER_DATA (buf), sector) != 0)
- goto read_failed;
-
- return buf;
-
- /* ERRORS */
-read_failed:
- {
- GST_WARNING_OBJECT (src, "read at sector %d failed!", sector);
- GST_ELEMENT_ERROR (src, RESOURCE, READ,
- (_("Could not read from CD.")),
- ("cdio_read_audio_sector at %d failed: %s", sector,
- g_strerror (errno)));
- gst_buffer_unref (buf);
- return NULL;
- }
-}
-
-static gboolean
-notcdio_track_is_audio_track (const CdIo * p_cdio, track_t i_track)
-{
- return (cdio_get_track_format (p_cdio, i_track) == TRACK_FORMAT_AUDIO);
-}
-
-static gboolean
-gst_cdio_cdda_src_open (GstCddaBaseSrc * cddabasesrc, const gchar * device)
-{
- GstCdioCddaSrc *src;
- discmode_t discmode;
- gint first_track, num_tracks, i;
-
- src = GST_CDIO_CDDA_SRC (cddabasesrc);
-
- g_assert (device != NULL);
- g_assert (src->cdio == NULL);
-
- GST_LOG_OBJECT (src, "trying to open device %s", device);
-
- if (!(src->cdio = cdio_open (device, DRIVER_UNKNOWN)))
- goto open_failed;
-
- discmode = cdio_get_discmode (src->cdio);
- GST_LOG_OBJECT (src, "discmode: %d", (gint) discmode);
-
- if (discmode != CDIO_DISC_MODE_CD_DA && discmode != CDIO_DISC_MODE_CD_MIXED)
- goto not_audio;
-
- first_track = cdio_get_first_track_num (src->cdio);
- num_tracks = cdio_get_num_tracks (src->cdio);
-
- if (num_tracks <= 0 || first_track < 0)
- return TRUE; /* base class will generate 'has no tracks' error */
-
- if (src->read_speed != -1)
- cdio_set_speed (src->cdio, src->read_speed);
-
- gst_cdio_add_cdtext_album_tags (GST_OBJECT_CAST (src), src->cdio,
- cddabasesrc->tags);
-
- GST_LOG_OBJECT (src, "%u tracks, first track: %d", num_tracks, first_track);
-
- for (i = 0; i < num_tracks; ++i) {
- GstCddaBaseSrcTrack track = { 0, };
- gint len_sectors;
-
- len_sectors = cdio_get_track_sec_count (src->cdio, i + first_track);
-
- track.num = i + first_track;
- track.is_audio = notcdio_track_is_audio_track (src->cdio, i + first_track);
-
- /* Note: LSN/LBA confusion all around us; in any case, this does
- * the right thing here (for cddb id calculations etc. as well) */
- track.start = cdio_get_track_lsn (src->cdio, i + first_track);
- track.end = track.start + len_sectors - 1; /* -1? */
- track.tags = gst_cdio_get_cdtext (GST_OBJECT (src), src->cdio,
- i + first_track);
-
- gst_cdda_base_src_add_track (GST_CDDA_BASE_SRC (src), &track);
- }
- return TRUE;
-
- /* ERRORS */
-open_failed:
- {
- GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
- (_("Could not open CD device for reading.")),
- ("cdio_open() failed: %s", g_strerror (errno)));
- return FALSE;
- }
-not_audio:
- {
- GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
- (_("Disc is not an Audio CD.")), ("discmode: %d", (gint) discmode));
-
- cdio_destroy (src->cdio);
- src->cdio = NULL;
- return FALSE;
- }
-}
-
-static void
-gst_cdio_cdda_src_close (GstCddaBaseSrc * cddabasesrc)
-{
- GstCdioCddaSrc *src = GST_CDIO_CDDA_SRC (cddabasesrc);
-
- if (src->cdio) {
- cdio_destroy (src->cdio);
- src->cdio = NULL;
- }
-}
-
-static void
-gst_cdio_cdda_src_init (GstCdioCddaSrc * src, GstCdioCddaSrcClass * klass)
-{
- src->read_speed = DEFAULT_READ_SPEED; /* don't need atomic access here */
- src->cdio = NULL;
-}
-
-static void
-gst_cdio_cdda_src_finalize (GObject * obj)
-{
- GstCdioCddaSrc *src = GST_CDIO_CDDA_SRC (obj);
-
- if (src->cdio) {
- cdio_destroy (src->cdio);
- src->cdio = NULL;
- }
-
- G_OBJECT_CLASS (parent_class)->finalize (obj);
-}
-
-static void
-gst_cdio_cdda_src_class_init (GstCdioCddaSrcClass * klass)
-{
- GstCddaBaseSrcClass *cddabasesrc_class = GST_CDDA_BASE_SRC_CLASS (klass);
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-
- gobject_class->set_property = gst_cdio_cdda_src_set_property;
- gobject_class->get_property = gst_cdio_cdda_src_get_property;
- gobject_class->finalize = gst_cdio_cdda_src_finalize;
-
- cddabasesrc_class->open = gst_cdio_cdda_src_open;
- cddabasesrc_class->close = gst_cdio_cdda_src_close;
- cddabasesrc_class->read_sector = gst_cdio_cdda_src_read_sector;
- cddabasesrc_class->probe_devices = gst_cdio_cdda_src_probe_devices;
- cddabasesrc_class->get_default_device = gst_cdio_cdda_src_get_default_device;
-
- g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_READ_SPEED,
- g_param_spec_int ("read-speed", "Read speed",
- "Read from device at the specified speed (-1 = default)", -1, 100,
- DEFAULT_READ_SPEED, G_PARAM_READWRITE));
-}
-
-static void
-gst_cdio_cdda_src_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstCdioCddaSrc *src = GST_CDIO_CDDA_SRC (object);
-
- switch (prop_id) {
- case PROP_READ_SPEED:{
- gint speed;
-
- speed = g_value_get_int (value);
- g_atomic_int_set (&src->read_speed, speed);
- break;
- }
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_cdio_cdda_src_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec)
-{
- GstCdioCddaSrc *src = GST_CDIO_CDDA_SRC (object);
-
- switch (prop_id) {
- case PROP_READ_SPEED:{
- gint speed;
-
- speed = g_atomic_int_get (&src->read_speed);
- g_value_set_int (value, speed);
- break;
- }
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
generated by cgit (git 2.34.1) at 2024-05-31 08:33:14 +0000