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/* GStreamer ID3 v1 and v2 muxer
*
* Copyright (C) 2006 Christophe Fergeau <teuf@gnome.org>
* Copyright (C) 2006-2012 Tim-Philipp Müller <tim centricular net>
* Copyright (C) 2009 Pioneers of the Inevitable <songbird@songbirdnest.com>
*
* 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.
*/
/**
* SECTION:element-id3mux
* @see_also: #GstID3Demux, #GstTagSetter
*
* This element adds ID3v2 tags to the beginning of a stream, and ID3v1 tags
* to the end.
*
* It defaults to writing ID3 version 2.3.0 tags (since those are the most
* widely supported), but can optionally write version 2.4.0 tags.
*
* Applications can set the tags to write using the #GstTagSetter interface.
* Tags sent by upstream elements will be picked up automatically (and merged
* according to the merge mode set via the tag setter interface).
*
* <refsect2>
* <title>Example pipelines</title>
* |[
* gst-launch-1.0 -v filesrc location=foo.ogg ! decodebin ! audioconvert ! id3mux ! filesink location=foo.mp3
* ]| A pipeline that transcodes a file from Ogg/Vorbis to mp3 format with
* ID3 tags that contain the same metadata as the the Ogg/Vorbis file.
* Make sure the Ogg/Vorbis file actually has comments to preserve.
* |[
* gst-launch-1.0 -m filesrc location=foo.mp3 ! id3demux ! fakesink silent=TRUE
* ]| Verify that tags have been written.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gstid3mux.h"
#include <gst/tag/tag.h>
#include <string.h>
GST_DEBUG_CATEGORY (gst_id3_mux_debug);
#define GST_CAT_DEFAULT gst_id3_mux_debug
enum
{
PROP_0,
PROP_WRITE_V1,
PROP_WRITE_V2,
PROP_V2_MAJOR_VERSION
};
#define DEFAULT_WRITE_V1 FALSE
#define DEFAULT_WRITE_V2 TRUE
#define DEFAULT_V2_MAJOR_VERSION 3
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("ANY"));
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-id3"));
G_DEFINE_TYPE (GstId3Mux, gst_id3_mux, GST_TYPE_TAG_MUX);
static GstBuffer *gst_id3_mux_render_v2_tag (GstTagMux * mux,
const GstTagList * taglist);
static GstBuffer *gst_id3_mux_render_v1_tag (GstTagMux * mux,
const GstTagList * taglist);
static void gst_id3_mux_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_id3_mux_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void
gst_id3_mux_class_init (GstId3MuxClass * klass)
{
GstElementClass *element_class = (GstElementClass *) klass;
GObjectClass *gobject_class = (GObjectClass *) klass;
gobject_class->set_property = gst_id3_mux_set_property;
gobject_class->get_property = gst_id3_mux_get_property;
g_object_class_install_property (gobject_class, PROP_WRITE_V1,
g_param_spec_boolean ("write-v1", "Write id3v1 tag",
"Write an id3v1 tag at the end of the file", DEFAULT_WRITE_V1,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_WRITE_V2,
g_param_spec_boolean ("write-v2", "Write id3v2 tag",
"Write an id3v2 tag at the start of the file", DEFAULT_WRITE_V2,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_V2_MAJOR_VERSION,
g_param_spec_int ("v2-version", "Version (3 or 4) of id3v2 tag",
"Set version (3 for id3v2.3, 4 for id3v2.4) of id3v2 tags",
3, 4, DEFAULT_V2_MAJOR_VERSION,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
GST_TAG_MUX_CLASS (klass)->render_start_tag =
GST_DEBUG_FUNCPTR (gst_id3_mux_render_v2_tag);
GST_TAG_MUX_CLASS (klass)->render_end_tag =
GST_DEBUG_FUNCPTR (gst_id3_mux_render_v1_tag);
gst_element_class_set_static_metadata (element_class,
"ID3 v1 and v2 Muxer", "Formatter/Metadata",
"Adds an ID3v2 header and ID3v1 footer to a file",
"Michael Smith <msmith@songbirdnest.com>, "
"Tim-Philipp Müller <tim centricular net>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
}
static void
gst_id3_mux_init (GstId3Mux * id3mux)
{
id3mux->write_v1 = DEFAULT_WRITE_V1;
id3mux->write_v2 = DEFAULT_WRITE_V2;
id3mux->v2_major_version = DEFAULT_V2_MAJOR_VERSION;
}
static void
gst_id3_mux_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstId3Mux *mux = GST_ID3_MUX (object);
switch (prop_id) {
case PROP_WRITE_V1:
mux->write_v1 = g_value_get_boolean (value);
break;
case PROP_WRITE_V2:
mux->write_v2 = g_value_get_boolean (value);
break;
case PROP_V2_MAJOR_VERSION:
mux->v2_major_version = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_id3_mux_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstId3Mux *mux = GST_ID3_MUX (object);
switch (prop_id) {
case PROP_WRITE_V1:
g_value_set_boolean (value, mux->write_v1);
break;
case PROP_WRITE_V2:
g_value_set_boolean (value, mux->write_v2);
break;
case PROP_V2_MAJOR_VERSION:
g_value_set_int (value, mux->v2_major_version);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstBuffer *
gst_id3_mux_render_v2_tag (GstTagMux * mux, const GstTagList * taglist)
{
GstId3Mux *id3mux = GST_ID3_MUX (mux);
if (id3mux->write_v2)
return id3_mux_render_v2_tag (mux, taglist, id3mux->v2_major_version);
else
return NULL;
}
static GstBuffer *
gst_id3_mux_render_v1_tag (GstTagMux * mux, const GstTagList * taglist)
{
GstId3Mux *id3mux = GST_ID3_MUX (mux);
if (id3mux->write_v1)
return id3_mux_render_v1_tag (mux, taglist);
else
return NULL;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gst_id3_mux_debug, "id3mux", 0,
"ID3 v1 and v2 tag muxer");
if (!gst_element_register (plugin, "id3mux", GST_RANK_PRIMARY,
GST_TYPE_ID3_MUX))
return FALSE;
gst_tag_register_musicbrainz_tags ();
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
id3tag,
"ID3 v1 and v2 muxing plugin",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);