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b99ecc78ca
GLib guarantees libintl is always present, using proxy-libintl as last resort. There is no need to mock gettex API any more. This fix static build on Windows because G_INTL_STATIC_COMPILATION must be defined before including libintl.h, and glib does it for us as part as including glib.h. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2028>
518 lines
15 KiB
C
518 lines
15 KiB
C
/* GStreamer
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* Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-cdiocddasrc
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* @title: cdiocddasrc
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* @see_also: GstCdParanoiaSrc, GstAudioCdSrc
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*
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* cdiocddasrc reads and extracts raw audio from Audio CDs. It can operate
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* in one of two modes:
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*
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* * treat each track as a separate stream, counting time from the start
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* of the track to the end of the track and posting EOS at the end of
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* a track, or
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* * treat the entire disc as one stream, counting time from the start of
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* the first track to the end of the last track, posting EOS only at
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* the end of the last track.
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*
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* With a recent-enough version of libcdio, the element will extract
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* CD-TEXT if this is supported by the CD-drive and CD-TEXT information
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* is available on the CD. The information will be posted on the bus in
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* form of a tag message.
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*
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* When opened, the element will also calculate a CDDB disc ID and a
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* MusicBrainz disc ID, which applications can use to query online
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* databases for artist/title information. These disc IDs will also be
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* posted on the bus as part of the tag messages.
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*
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* cdiocddasrc supports the GstUriHandler interface, so applications can use
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* playbin with cdda://<track-number> URIs for playback (they will have
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* to connect to playbin's notify::source signal and set the device on the
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* cd source in the notify callback if they want to set the device property).
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* Applications should use seeks in "track" format to switch between different
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* tracks of the same CD (passing a new cdda:// URI to playbin involves opening
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* and closing the CD device, which is much slower).
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*
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* ## Example launch line
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*
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* |[
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* gst-launch-1.0 cdiocddasrc track=5 device=/dev/cdrom ! audioconvert ! vorbisenc ! oggmux ! filesink location=track5.ogg
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* ]|
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* This pipeline extracts track 5 of the audio CD and encodes it into an
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* Ogg/Vorbis file.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstcdio.h"
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#include "gstcdiocddasrc.h"
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#include <gst/gst.h>
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#include <glib/gi18n-lib.h>
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#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#define SAMPLES_PER_SECTOR (CDIO_CD_FRAMESIZE_RAW / sizeof (gint16))
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#define DEFAULT_READ_SPEED -1
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enum
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{
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PROP_0 = 0,
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PROP_READ_SPEED
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};
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GST_DEBUG_CATEGORY (gst_cdio_debug);
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G_DEFINE_TYPE (GstCdioCddaSrc, gst_cdio_cdda_src, GST_TYPE_AUDIO_CD_SRC);
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#define _do_init \
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GST_DEBUG_CATEGORY_INIT (gst_cdio_debug, "cdio", 0, "libcdio elements"); \
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cdio_log_set_handler (gst_cdio_log_handler);
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GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (cdiocddasrc, "cdiocddasrc",
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GST_RANK_SECONDARY - 1, GST_TYPE_CDIO_CDDA_SRC, _do_init);
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static void gst_cdio_cdda_src_finalize (GObject * obj);
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static void gst_cdio_cdda_src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_cdio_cdda_src_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstBuffer *gst_cdio_cdda_src_read_sector (GstAudioCdSrc * src,
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gint sector);
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static gboolean gst_cdio_cdda_src_open (GstAudioCdSrc * src,
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const gchar * device);
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static void gst_cdio_cdda_src_close (GstAudioCdSrc * src);
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#if 0
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static gchar *
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gst_cdio_cdda_src_get_default_device (GstAudioCdSrc * audiocdsrc)
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{
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GstCdioCddaSrc *src;
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gchar *default_device, *ret;
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src = GST_CDIO_CDDA_SRC (audiocdsrc);
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/* src->cdio may be NULL here */
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default_device = cdio_get_default_device (src->cdio);
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ret = g_strdup (default_device);
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free (default_device);
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GST_LOG_OBJECT (src, "returning default device: %s", GST_STR_NULL (ret));
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return ret;
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}
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static gchar **
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gst_cdio_cdda_src_probe_devices (GstAudioCdSrc * audiocdsrc)
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{
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char **devices, **ret, **d;
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/* FIXME: might return the same hardware device twice, e.g.
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* as /dev/cdrom and /dev/dvd - gotta do something more sophisticated */
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devices = cdio_get_devices (DRIVER_DEVICE);
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if (devices == NULL)
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goto no_devices;
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if (*devices == NULL)
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goto empty_devices;
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ret = g_strdupv (devices);
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for (d = devices; *d != NULL; ++d) {
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GST_DEBUG_OBJECT (audiocdsrc, "device: %s", GST_STR_NULL (*d));
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free (*d);
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}
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free (devices);
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return ret;
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/* ERRORS */
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no_devices:
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{
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GST_DEBUG_OBJECT (audiocdsrc, "no devices found");
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return NULL;
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}
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empty_devices:
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{
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GST_DEBUG_OBJECT (audiocdsrc, "empty device list found");
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free (devices);
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return NULL;
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}
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}
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#endif
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static GstBuffer *
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gst_cdio_cdda_src_read_sector (GstAudioCdSrc * audiocdsrc, gint sector)
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{
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GstCdioCddaSrc *src;
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guint8 *data;
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src = GST_CDIO_CDDA_SRC (audiocdsrc);
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data = g_malloc (CDIO_CD_FRAMESIZE_RAW);
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/* can't use pad_alloc because we can't return the GstFlowReturn (FIXME 0.11) */
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if (cdio_read_audio_sector (src->cdio, data, sector) != 0)
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goto read_failed;
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if (src->swap_le_be) {
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gint16 *pcm_data = (gint16 *) data;
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gint i;
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for (i = 0; i < SAMPLES_PER_SECTOR; ++i)
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pcm_data[i] = GUINT16_SWAP_LE_BE (pcm_data[i]);
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}
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return gst_buffer_new_wrapped (data, CDIO_CD_FRAMESIZE_RAW);
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/* ERRORS */
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read_failed:
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{
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GST_WARNING_OBJECT (src, "read at sector %d failed!", sector);
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GST_ELEMENT_ERROR (src, RESOURCE, READ,
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(_("Could not read from CD.")),
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("cdio_read_audio_sector at %d failed: %s", sector,
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g_strerror (errno)));
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g_free (data);
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return NULL;
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}
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}
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static gboolean
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gst_cdio_cdda_src_do_detect_drive_endianness (GstCdioCddaSrc * src, gint from,
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gint to)
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{
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gint16 pcm_data[SAMPLES_PER_SECTOR], last_pcm_ne, last_pcm_oe;
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gdouble ne_sumd0, ne_sumd1, ne_factor;
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gdouble oe_sumd0, oe_sumd1, oe_factor;
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gdouble diff;
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gint sector;
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gint i;
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ne_sumd0 = ne_sumd1 = 0.0;
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oe_sumd0 = oe_sumd1 = 0.0;
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last_pcm_ne = 0;
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last_pcm_oe = 0;
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GST_LOG_OBJECT (src, "checking sector %d to %d", from, to);
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for (sector = from; sector < to; ++sector) {
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if (cdio_read_audio_sector (src->cdio, pcm_data, sector) != 0)
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goto read_failed;
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/* only evaluate samples for left channel */
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for (i = 0; i < SAMPLES_PER_SECTOR; i += 2) {
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gint16 pcm;
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/* Native endianness first */
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pcm = pcm_data[i];
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ne_sumd0 += abs (pcm);
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ne_sumd1 += abs (pcm - last_pcm_ne);
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last_pcm_ne = pcm;
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/* other endianness next */
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pcm = GUINT16_SWAP_LE_BE (pcm);
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oe_sumd0 += abs (pcm);
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oe_sumd1 += abs (pcm - last_pcm_oe);
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last_pcm_oe = pcm;
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}
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}
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ne_factor = (ne_sumd1 / ne_sumd0);
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oe_factor = (oe_sumd1 / oe_sumd0);
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diff = ne_factor - oe_factor;
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GST_DEBUG_OBJECT (src, "Native: %.2f, Other: %.2f, diff: %.2f",
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ne_factor, oe_factor, diff);
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if (diff > 0.5) {
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GST_INFO_OBJECT (src, "Drive produces samples in other endianness");
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src->swap_le_be = TRUE;
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return TRUE;
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} else if (diff < -0.5) {
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GST_INFO_OBJECT (src, "Drive produces samples in host endianness");
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src->swap_le_be = FALSE;
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return TRUE;
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} else {
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GST_INFO_OBJECT (src, "Inconclusive, assuming host endianness");
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src->swap_le_be = FALSE;
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return FALSE;
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}
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/* ERRORS */
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read_failed:
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{
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GST_WARNING_OBJECT (src, "could not read sector %d", sector);
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src->swap_le_be = FALSE;
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return FALSE;
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}
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}
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static void
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gst_cdio_cdda_src_detect_drive_endianness (GstCdioCddaSrc * src, gint first,
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gint last)
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{
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gint from, to;
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GST_INFO ("Detecting drive endianness");
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/* try middle of disc first */
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from = (first + last) / 2;
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to = MIN (from + 10, last);
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if (gst_cdio_cdda_src_do_detect_drive_endianness (src, from, to))
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return;
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/* if that was inconclusive, try other places */
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from = (first + last) / 4;
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to = MIN (from + 10, last);
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if (gst_cdio_cdda_src_do_detect_drive_endianness (src, from, to))
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return;
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from = (first + last) * 3 / 4;
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to = MIN (from + 10, last);
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if (gst_cdio_cdda_src_do_detect_drive_endianness (src, from, to))
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return;
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/* if that's still inconclusive, we give up and assume host endianness */
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return;
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}
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static gboolean
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notcdio_track_is_audio_track (const CdIo * p_cdio, track_t i_track)
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{
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return (cdio_get_track_format (p_cdio, i_track) == TRACK_FORMAT_AUDIO);
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}
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static gboolean
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gst_cdio_cdda_src_open (GstAudioCdSrc * audiocdsrc, const gchar * device)
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{
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GstCdioCddaSrc *src;
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discmode_t discmode;
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gint first_track, num_tracks, i;
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gint first_audio_sector = 0, last_audio_sector = 0;
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#if LIBCDIO_VERSION_NUM > 83 || LIBCDIO_VERSION_NUM < 76
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cdtext_t *cdtext;
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#endif
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src = GST_CDIO_CDDA_SRC (audiocdsrc);
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g_assert (device != NULL);
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g_assert (src->cdio == NULL);
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GST_LOG_OBJECT (src, "trying to open device %s", device);
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if (!(src->cdio = cdio_open (device, DRIVER_UNKNOWN)))
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goto open_failed;
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discmode = cdio_get_discmode (src->cdio);
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GST_LOG_OBJECT (src, "discmode: %d", (gint) discmode);
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if (discmode != CDIO_DISC_MODE_CD_DA && discmode != CDIO_DISC_MODE_CD_MIXED)
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goto not_audio;
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first_track = cdio_get_first_track_num (src->cdio);
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num_tracks = cdio_get_num_tracks (src->cdio);
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if (num_tracks <= 0 || first_track < 0)
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return TRUE; /* base class will generate 'has no tracks' error */
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if (src->read_speed != -1)
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cdio_set_speed (src->cdio, src->read_speed);
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#if LIBCDIO_VERSION_NUM > 83 || LIBCDIO_VERSION_NUM < 76
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cdtext = cdio_get_cdtext (src->cdio);
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if (NULL == cdtext)
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GST_DEBUG_OBJECT (src, "no CD-TEXT on disc");
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else
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gst_cdio_add_cdtext_album_tags (GST_OBJECT_CAST (src), cdtext,
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audiocdsrc->tags);
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#else
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gst_cdio_add_cdtext_album_tags (GST_OBJECT_CAST (src), src->cdio,
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audiocdsrc->tags);
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#endif
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GST_LOG_OBJECT (src, "%u tracks, first track: %d", num_tracks, first_track);
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for (i = 0; i < num_tracks; ++i) {
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GstAudioCdSrcTrack track = { 0, };
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gint len_sectors;
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len_sectors = cdio_get_track_sec_count (src->cdio, i + first_track);
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track.num = i + first_track;
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track.is_audio = notcdio_track_is_audio_track (src->cdio, i + first_track);
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/* Note: LSN/LBA confusion all around us; in any case, this does
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* the right thing here (for cddb id calculations etc. as well) */
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track.start = cdio_get_track_lsn (src->cdio, i + first_track);
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track.end = track.start + len_sectors - 1; /* -1? */
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if (track.is_audio) {
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first_audio_sector = MIN (first_audio_sector, track.start);
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last_audio_sector = MAX (last_audio_sector, track.end);
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}
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#if LIBCDIO_VERSION_NUM > 83 || LIBCDIO_VERSION_NUM < 76
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if (NULL != cdtext)
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track.tags = gst_cdio_get_cdtext (GST_OBJECT (src), cdtext,
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i + first_track);
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#else
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track.tags = gst_cdio_get_cdtext (GST_OBJECT (src), src->cdio,
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i + first_track);
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#endif
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gst_audio_cd_src_add_track (GST_AUDIO_CD_SRC (src), &track);
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}
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/* Try to detect if we need to byte-order swap the samples coming from the
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* drive, which might be the case if the CD drive operates in a different
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* endianness than the host CPU's endianness (happens on e.g. Powerbook G4) */
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gst_cdio_cdda_src_detect_drive_endianness (src, first_audio_sector,
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last_audio_sector);
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return TRUE;
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/* ERRORS */
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open_failed:
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{
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GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
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(_("Could not open CD device for reading.")),
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("cdio_open() failed: %s", g_strerror (errno)));
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return FALSE;
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}
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not_audio:
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{
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GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
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(_("Disc is not an Audio CD.")), ("discmode: %d", (gint) discmode));
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cdio_destroy (src->cdio);
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src->cdio = NULL;
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return FALSE;
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}
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}
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static void
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gst_cdio_cdda_src_close (GstAudioCdSrc * audiocdsrc)
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{
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GstCdioCddaSrc *src = GST_CDIO_CDDA_SRC (audiocdsrc);
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if (src->cdio) {
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cdio_destroy (src->cdio);
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src->cdio = NULL;
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}
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}
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static void
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gst_cdio_cdda_src_init (GstCdioCddaSrc * src)
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{
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src->read_speed = DEFAULT_READ_SPEED; /* don't need atomic access here */
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src->cdio = NULL;
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}
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static void
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gst_cdio_cdda_src_finalize (GObject * obj)
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{
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GstCdioCddaSrc *src = GST_CDIO_CDDA_SRC (obj);
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if (src->cdio) {
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cdio_destroy (src->cdio);
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src->cdio = NULL;
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}
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G_OBJECT_CLASS (gst_cdio_cdda_src_parent_class)->finalize (obj);
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}
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static void
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gst_cdio_cdda_src_class_init (GstCdioCddaSrcClass * klass)
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{
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GstAudioCdSrcClass *audiocdsrc_class = GST_AUDIO_CD_SRC_CLASS (klass);
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->set_property = gst_cdio_cdda_src_set_property;
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gobject_class->get_property = gst_cdio_cdda_src_get_property;
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gobject_class->finalize = gst_cdio_cdda_src_finalize;
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audiocdsrc_class->open = gst_cdio_cdda_src_open;
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audiocdsrc_class->close = gst_cdio_cdda_src_close;
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audiocdsrc_class->read_sector = gst_cdio_cdda_src_read_sector;
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#if 0
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audiocdsrc_class->probe_devices = gst_cdio_cdda_src_probe_devices;
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audiocdsrc_class->get_default_device = gst_cdio_cdda_src_get_default_device;
|
|
#endif
|
|
|
|
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 | G_PARAM_STATIC_STRINGS));
|
|
|
|
gst_element_class_set_static_metadata (element_class,
|
|
"CD audio source (CDDA)", "Source/File",
|
|
"Read audio from CD using libcdio",
|
|
"Tim-Philipp Müller <tim centricular net>");
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|