1 /* GStreamer taglib-based APEv2 muxer
2 * Copyright (C) 2006 Christophe Fergeau <teuf@gnome.org>
3 * Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
4 * Copyright (C) 2006 Sebastian Dröge <slomo@circular-chaos.org>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
23 * SECTION:element-apev2mux
24 * @see_also: #GstTagSetter
26 * This element adds APEv2 tags to the beginning of a stream using the taglib
29 * Applications can set the tags to write using the #GstTagSetter interface.
30 * Tags sent by upstream elements will be picked up automatically (and merged
31 * according to the merge mode set via the tag setter interface).
34 * <title>Example pipelines</title>
36 * gst-launch -v filesrc location=foo.ogg ! decodebin ! audioconvert ! lame ! apev2mux ! filesink location=foo.mp3
37 * ]| A pipeline that transcodes a file from Ogg/Vorbis to mp3 format with an
38 * APEv2 that contains the same as the the Ogg/Vorbis file. Make sure the
39 * Ogg/Vorbis file actually has comments to preserve.
41 * gst-launch -m filesrc location=foo.mp3 ! apedemux ! fakesink silent=TRUE 2> /dev/null | grep taglist
42 * ]| Verify that tags have been written.
50 #include "gstapev2mux.h"
55 #include <gst/tag/tag.h>
57 using namespace TagLib;
59 GST_DEBUG_CATEGORY_STATIC (gst_apev2_mux_debug);
60 #define GST_CAT_DEFAULT gst_apev2_mux_debug
62 static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
65 GST_STATIC_CAPS ("application/x-apetag"));
67 G_DEFINE_TYPE (GstApev2Mux, gst_apev2_mux, GST_TYPE_TAG_LIB_MUX);
69 static GstBuffer *gst_apev2_mux_render_tag (GstTagLibMux * mux,
70 GstTagList * taglist);
73 gst_apev2_mux_class_init (GstApev2MuxClass * klass)
75 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
77 GST_TAG_LIB_MUX_CLASS (klass)->render_tag =
78 GST_DEBUG_FUNCPTR (gst_apev2_mux_render_tag);
80 gst_element_class_add_pad_template (element_class,
81 gst_static_pad_template_get (&src_template));
83 gst_element_class_set_details_simple (element_class,
84 "TagLib-based APEv2 Muxer", "Formatter/Metadata",
85 "Adds an APEv2 header to the beginning of files using taglib",
86 "Sebastian Dröge <slomo@circular-chaos.org>");
88 GST_DEBUG_CATEGORY_INIT (gst_apev2_mux_debug, "apev2mux", 0,
89 "taglib-based APEv2 tag muxer");
93 gst_apev2_mux_init (GstApev2Mux * apev2mux)
99 add_one_tag (const GstTagList * list, const gchar * tag, gpointer user_data)
101 APE::Tag * apev2tag = (APE::Tag *) user_data;
104 /* FIXME: if there are several values set for the same tag, this won't
105 * work, only the first value will be taken into account
107 if (strcmp (tag, GST_TAG_TITLE) == 0) {
110 result = gst_tag_list_peek_string_index (list, tag, 0, &title);
111 if (result != FALSE) {
112 GST_DEBUG ("Setting title to %s", title);
113 apev2tag->setTitle (String (title, String::UTF8));
115 } else if (strcmp (tag, GST_TAG_ALBUM) == 0) {
118 result = gst_tag_list_peek_string_index (list, tag, 0, &album);
119 if (result != FALSE) {
120 GST_DEBUG ("Setting album to %s", album);
121 apev2tag->setAlbum (String (album, String::UTF8));
123 } else if (strcmp (tag, GST_TAG_ARTIST) == 0) {
126 result = gst_tag_list_peek_string_index (list, tag, 0, &artist);
127 if (result != FALSE) {
128 GST_DEBUG ("Setting artist to %s", artist);
129 apev2tag->setArtist (String (artist, String::UTF8));
131 } else if (strcmp (tag, GST_TAG_COMPOSER) == 0) {
132 const char *composer;
134 result = gst_tag_list_peek_string_index (list, tag, 0, &composer);
135 if (result != FALSE) {
136 GST_DEBUG ("Setting composer to %s", composer);
137 apev2tag->addValue (String ("COMPOSER", String::UTF8),
138 String (composer, String::UTF8));
140 } else if (strcmp (tag, GST_TAG_GENRE) == 0) {
143 result = gst_tag_list_peek_string_index (list, tag, 0, &genre);
144 if (result != FALSE) {
145 GST_DEBUG ("Setting genre to %s", genre);
146 apev2tag->setGenre (String (genre, String::UTF8));
148 } else if (strcmp (tag, GST_TAG_COMMENT) == 0) {
151 result = gst_tag_list_peek_string_index (list, tag, 0, &comment);
152 if (result != FALSE) {
153 GST_DEBUG ("Setting comment to %s", comment);
154 apev2tag->setComment (String (comment, String::UTF8));
156 } else if (strcmp (tag, GST_TAG_DATE) == 0) {
159 result = gst_tag_list_get_date_index (list, tag, 0, &date);
160 if (result != FALSE) {
163 year = g_date_get_year (date);
164 GST_DEBUG ("Setting track year to %d", year);
165 apev2tag->setYear (year);
168 } else if (strcmp (tag, GST_TAG_TRACK_NUMBER) == 0) {
171 result = gst_tag_list_get_uint_index (list, tag, 0, &track_number);
172 if (result != FALSE) {
175 result = gst_tag_list_get_uint_index (list, GST_TAG_TRACK_COUNT,
180 tag_str = g_strdup_printf ("%d/%d", track_number, total_tracks);
181 GST_DEBUG ("Setting track number to %s", tag_str);
182 apev2tag->addValue (String ("TRACK", String::UTF8),
183 String (tag_str, String::UTF8), true);
186 GST_DEBUG ("Setting track number to %d", track_number);
187 apev2tag->setTrack (track_number);
190 } else if (strcmp (tag, GST_TAG_TRACK_COUNT) == 0) {
193 if (gst_tag_list_get_uint_index (list, GST_TAG_TRACK_NUMBER, 0, &n)) {
194 GST_DEBUG ("track-count handled with track-number, skipping");
195 } else if (gst_tag_list_get_uint_index (list, GST_TAG_TRACK_COUNT, 0, &n)) {
198 tag_str = g_strdup_printf ("0/%d", n);
199 GST_DEBUG ("Setting track number to %s", tag_str);
200 apev2tag->addValue (String ("TRACK", String::UTF8),
201 String (tag_str, String::UTF8), true);
205 } else if (strcmp (tag, GST_TAG_ALBUM_VOLUME_NUMBER) == 0) {
208 result = gst_tag_list_get_uint_index (list, tag, 0, &volume_number);
210 if (result != FALSE) {
214 result = gst_tag_list_get_uint_index (list, GST_TAG_ALBUM_VOLUME_COUNT,
218 tag_str = g_strdup_printf ("CD %d/%d", volume_number, volume_count);
220 tag_str = g_strdup_printf ("CD %d", volume_number);
223 GST_DEBUG ("Setting album number to %s", tag_str);
225 apev2tag->addValue (String ("MEDIA", String::UTF8),
226 String (tag_str, String::UTF8), true);
229 } else if (strcmp (tag, GST_TAG_ALBUM_VOLUME_COUNT) == 0) {
232 if (gst_tag_list_get_uint_index (list, GST_TAG_ALBUM_VOLUME_NUMBER, 0, &n)) {
233 GST_DEBUG ("volume-count handled with volume-number, skipping");
234 } else if (gst_tag_list_get_uint_index (list, GST_TAG_ALBUM_VOLUME_COUNT,
238 tag_str = g_strdup_printf ("CD 0/%u", n);
239 GST_DEBUG ("Setting album volume number/count to %s", tag_str);
241 apev2tag->addValue (String ("MEDIA", String::UTF8),
242 String (tag_str, String::UTF8), true);
246 } else if (strcmp (tag, GST_TAG_COPYRIGHT) == 0) {
247 const gchar *copyright;
249 result = gst_tag_list_peek_string_index (list, tag, 0, ©right);
251 if (result != FALSE) {
252 GST_DEBUG ("Setting copyright to %s", copyright);
253 apev2tag->addValue (String ("COPYRIGHT", String::UTF8),
254 String (copyright, String::UTF8), true);
256 } else if (strcmp (tag, GST_TAG_LOCATION) == 0) {
257 const gchar *location;
259 result = gst_tag_list_peek_string_index (list, tag, 0, &location);
261 if (result != FALSE) {
262 GST_DEBUG ("Setting location to %s", location);
263 apev2tag->addValue (String ("FILE", String::UTF8),
264 String (location, String::UTF8), true);
266 } else if (strcmp (tag, GST_TAG_ISRC) == 0) {
269 result = gst_tag_list_peek_string_index (list, tag, 0, &isrc);
271 if (result != FALSE) {
272 GST_DEBUG ("Setting ISRC to %s", isrc);
273 apev2tag->addValue (String ("ISRC", String::UTF8),
274 String (isrc, String::UTF8), true);
276 } else if (strcmp (tag, GST_TAG_TRACK_GAIN) == 0) {
279 result = gst_tag_list_get_double_index (list, tag, 0, &value);
281 if (result != FALSE) {
282 gchar *track_gain = (gchar *) g_malloc0 (G_ASCII_DTOSTR_BUF_SIZE);
284 track_gain = g_ascii_dtostr (track_gain, G_ASCII_DTOSTR_BUF_SIZE, value);
285 GST_DEBUG ("Setting track gain to %s", track_gain);
286 apev2tag->addValue (String ("REPLAYGAIN_TRACK_GAIN",
287 String::UTF8), String (track_gain, String::UTF8), true);
290 } else if (strcmp (tag, GST_TAG_TRACK_PEAK) == 0) {
293 result = gst_tag_list_get_double_index (list, tag, 0, &value);
295 if (result != FALSE) {
296 gchar *track_peak = (gchar *) g_malloc0 (G_ASCII_DTOSTR_BUF_SIZE);
298 track_peak = g_ascii_dtostr (track_peak, G_ASCII_DTOSTR_BUF_SIZE, value);
299 GST_DEBUG ("Setting track peak to %s", track_peak);
300 apev2tag->addValue (String ("REPLAYGAIN_TRACK_PEAK",
301 String::UTF8), String (track_peak, String::UTF8), true);
304 } else if (strcmp (tag, GST_TAG_ALBUM_GAIN) == 0) {
307 result = gst_tag_list_get_double_index (list, tag, 0, &value);
309 if (result != FALSE) {
310 gchar *album_gain = (gchar *) g_malloc0 (G_ASCII_DTOSTR_BUF_SIZE);
312 album_gain = g_ascii_dtostr (album_gain, G_ASCII_DTOSTR_BUF_SIZE, value);
313 GST_DEBUG ("Setting album gain to %s", album_gain);
314 apev2tag->addValue (String ("REPLAYGAIN_ALBUM_GAIN",
315 String::UTF8), String (album_gain, String::UTF8), true);
318 } else if (strcmp (tag, GST_TAG_ALBUM_PEAK) == 0) {
321 result = gst_tag_list_get_double_index (list, tag, 0, &value);
323 if (result != FALSE) {
324 gchar *album_peak = (gchar *) g_malloc0 (G_ASCII_DTOSTR_BUF_SIZE);
326 album_peak = g_ascii_dtostr (album_peak, G_ASCII_DTOSTR_BUF_SIZE, value);
327 GST_DEBUG ("Setting album peak to %s", album_peak);
328 apev2tag->addValue (String ("REPLAYGAIN_ALBUM_PEAK",
329 String::UTF8), String (album_peak, String::UTF8), true);
333 GST_WARNING ("Unsupported tag: %s", tag);
338 gst_apev2_mux_render_tag (GstTagLibMux * mux, GstTagList * taglist)
341 ByteVector rendered_tag;
346 gst_tag_list_foreach (taglist, add_one_tag, &apev2tag);
348 rendered_tag = apev2tag.render ();
349 tag_size = rendered_tag.size ();
351 GST_LOG_OBJECT (mux, "tag size = %d bytes", tag_size);
353 /* Create buffer with tag */
354 buf = gst_buffer_new_and_alloc (tag_size);
355 gst_buffer_fill (buf, 0, rendered_tag.data (), tag_size);
361 gst_apev2_mux_plugin_init (GstPlugin * plugin)
363 if (!gst_element_register (plugin, "apev2mux", GST_RANK_NONE,