mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
790c059867
Original commit message from CVS: 2005-05-05 Andy Wingo <wingo@pobox.com> * gst-libs/gst/tag/gstid3tag.c: (gst_tag_list_new_from_id3v1): * gst-libs/gst/tag/gstvorbistag.c: (gst_tag_list_from_vorbiscomment_buffer), (gst_vorbis_tag_chain): * gst/adder/gstadder.h: * gst/audioconvert/gstchannelmix.c: (gst_audio_convert_fill_one_other): * gst/audiorate/gstaudiorate.c: (gst_audiorate_setcaps), (gst_audiorate_init), (gst_audiorate_chain): * gst/playback/gstplaybasebin.c: (setup_source): * gst/playback/test3.c: (update_scale): Some GCC4 fixes * po/af.po: * po/az.po: * po/cs.po: * po/en_GB.po: * po/hu.po: * po/it.po: * po/nb.po: * po/nl.po: * po/or.po: * po/sq.po: * po/sr.po: * po/sv.po: * po/uk.po: * po/vi.po: Foo
673 lines
19 KiB
C
673 lines
19 KiB
C
/* GStreamer
|
|
* Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
|
|
*
|
|
* gstvorbistagsetter.c: plugin for reading / modifying vorbis tags
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
#include <gst/gsttaginterface.h>
|
|
#include "gsttageditingprivate.h"
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (gst_vorbis_tag_debug);
|
|
#define GST_CAT_DEFAULT gst_vorbis_tag_debug
|
|
|
|
#define GST_TYPE_VORBIS_TAG (gst_vorbis_tag_get_type())
|
|
#define GST_VORBIS_TAG(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VORBIS_TAG, GstVorbisTag))
|
|
#define GST_VORBIS_TAG_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VORBIS_TAG, GstVorbisTag))
|
|
#define GST_IS_VORBIS_TAG(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VORBIS_TAG))
|
|
#define GST_IS_VORBIS_TAG_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VORBIS_TAG))
|
|
|
|
typedef struct _GstVorbisTag GstVorbisTag;
|
|
typedef struct _GstVorbisTagClass GstVorbisTagClass;
|
|
|
|
struct _GstVorbisTag
|
|
{
|
|
GstElement element;
|
|
|
|
/* pads */
|
|
GstPad *sinkpad;
|
|
GstPad *srcpad;
|
|
|
|
/* output mode */
|
|
guint output;
|
|
};
|
|
|
|
struct _GstVorbisTagClass
|
|
{
|
|
GstElementClass parent_class;
|
|
};
|
|
|
|
/* elementfactory information */
|
|
static GstElementDetails gst_vorbis_tag_details =
|
|
GST_ELEMENT_DETAILS ("vorbis tag extractor",
|
|
"Tag",
|
|
"Extract tagging information from vorbis streams",
|
|
"Benjamin Otte <in7y118@public.uni-hamburg.de>");
|
|
|
|
enum
|
|
{
|
|
OUTPUT_UNKNOWN,
|
|
OUTPUT_TAGS,
|
|
OUTPUT_DATA
|
|
};
|
|
|
|
/* signals and args */
|
|
enum
|
|
{
|
|
/* FILL ME */
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
static GstStaticPadTemplate gst_vorbis_tag_src_template =
|
|
GST_STATIC_PAD_TEMPLATE ("src",
|
|
GST_PAD_SRC,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("audio/x-vorbis; application/x-gst-tags")
|
|
);
|
|
|
|
static GstStaticPadTemplate gst_vorbis_tag_sink_template =
|
|
GST_STATIC_PAD_TEMPLATE ("sink",
|
|
GST_PAD_SINK,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("audio/x-vorbis")
|
|
);
|
|
|
|
|
|
static void gst_vorbis_tag_base_init (gpointer g_class);
|
|
static void gst_vorbis_tag_class_init (gpointer g_class, gpointer class_data);
|
|
static void gst_vorbis_tag_init (GTypeInstance * instance, gpointer g_class);
|
|
|
|
static GstFlowReturn gst_vorbis_tag_chain (GstPad * pad, GstBuffer * buffer);
|
|
|
|
static GstElementStateReturn gst_vorbis_tag_change_state (GstElement * element);
|
|
|
|
static GstElementClass *parent_class = NULL;
|
|
|
|
/* static guint gst_vorbis_tag_signals[LAST_SIGNAL] = { 0 }; */
|
|
|
|
GType
|
|
gst_vorbis_tag_get_type (void)
|
|
{
|
|
static GType vorbis_tag_type = 0;
|
|
|
|
if (!vorbis_tag_type) {
|
|
static const GTypeInfo vorbis_tag_info = {
|
|
sizeof (GstVorbisTagClass),
|
|
gst_vorbis_tag_base_init,
|
|
NULL,
|
|
gst_vorbis_tag_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstVorbisTag),
|
|
0,
|
|
gst_vorbis_tag_init,
|
|
};
|
|
static const GInterfaceInfo tag_setter_info = {
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
vorbis_tag_type =
|
|
g_type_register_static (GST_TYPE_ELEMENT, "GstVorbisTag",
|
|
&vorbis_tag_info, 0);
|
|
|
|
g_type_add_interface_static (vorbis_tag_type, GST_TYPE_TAG_SETTER,
|
|
&tag_setter_info);
|
|
|
|
GST_DEBUG_CATEGORY_INIT (gst_vorbis_tag_debug, "vorbistag", 0,
|
|
"vorbis tagging element");
|
|
}
|
|
return vorbis_tag_type;
|
|
}
|
|
static void
|
|
gst_vorbis_tag_base_init (gpointer g_class)
|
|
{
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
|
|
|
gst_element_class_set_details (element_class, &gst_vorbis_tag_details);
|
|
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_vorbis_tag_sink_template));
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_vorbis_tag_src_template));
|
|
}
|
|
static void
|
|
gst_vorbis_tag_class_init (gpointer g_class, gpointer class_data)
|
|
{
|
|
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
|
|
|
|
parent_class = g_type_class_peek_parent (g_class);
|
|
|
|
gstelement_class->change_state = gst_vorbis_tag_change_state;
|
|
}
|
|
static void
|
|
gst_vorbis_tag_init (GTypeInstance * instance, gpointer g_class)
|
|
{
|
|
GstVorbisTag *tag = GST_VORBIS_TAG (instance);
|
|
|
|
/* create the sink and src pads */
|
|
tag->sinkpad =
|
|
gst_pad_new_from_template (gst_static_pad_template_get
|
|
(&gst_vorbis_tag_sink_template), "sink");
|
|
gst_element_add_pad (GST_ELEMENT (tag), tag->sinkpad);
|
|
gst_pad_set_chain_function (tag->sinkpad,
|
|
GST_DEBUG_FUNCPTR (gst_vorbis_tag_chain));
|
|
|
|
tag->srcpad =
|
|
gst_pad_new_from_template (gst_static_pad_template_get
|
|
(&gst_vorbis_tag_src_template), "src");
|
|
gst_element_add_pad (GST_ELEMENT (tag), tag->srcpad);
|
|
}
|
|
static GstTagEntryMatch tag_matches[] = {
|
|
{GST_TAG_TITLE, "TITLE"},
|
|
{GST_TAG_VERSION, "VERSION"},
|
|
{GST_TAG_ALBUM, "ALBUM"},
|
|
{GST_TAG_TRACK_NUMBER, "TRACKNUMBER"},
|
|
{GST_TAG_ALBUM_VOLUME_NUMBER, "DISCNUMBER"},
|
|
{GST_TAG_TRACK_COUNT, "TRACKTOTAL"},
|
|
{GST_TAG_ALBUM_VOLUME_COUNT, "DISCTOTAL"},
|
|
{GST_TAG_ARTIST, "ARTIST"},
|
|
{GST_TAG_PERFORMER, "PERFORMER"},
|
|
{GST_TAG_COPYRIGHT, "COPYRIGHT"},
|
|
{GST_TAG_LICENSE, "LICENSE"},
|
|
{GST_TAG_ORGANIZATION, "ORGANIZATION"},
|
|
{GST_TAG_DESCRIPTION, "DESCRIPTION"},
|
|
{GST_TAG_GENRE, "GENRE"},
|
|
{GST_TAG_DATE, "DATE"},
|
|
{GST_TAG_CONTACT, "CONTACT"},
|
|
{GST_TAG_ISRC, "ISRC"},
|
|
{GST_TAG_COMMENT, "COMMENT"},
|
|
{GST_TAG_TRACK_GAIN, "REPLAYGAIN_TRACK_GAIN"},
|
|
{GST_TAG_TRACK_PEAK, "REPLAYGAIN_TRACK_PEAK"},
|
|
{GST_TAG_ALBUM_GAIN, "REPLAYGAIN_ALBUM_GAIN"},
|
|
{GST_TAG_ALBUM_PEAK, "REPLAYGAIN_ALBUM_PEAK"},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
/**
|
|
* gst_tag_from_vorbis_tag:
|
|
* @vorbis_tag: vorbiscomment tag to convert to GStreamer tag
|
|
*
|
|
* Looks up the GStreamer tag for a vorbiscommment tag.
|
|
*
|
|
* Returns: The corresponding GStreamer tag or NULL if none exists.
|
|
*/
|
|
G_CONST_RETURN gchar *
|
|
gst_tag_from_vorbis_tag (const gchar * vorbis_tag)
|
|
{
|
|
int i = 0;
|
|
gchar *real_vorbis_tag;
|
|
|
|
g_return_val_if_fail (vorbis_tag != NULL, NULL);
|
|
|
|
real_vorbis_tag = g_ascii_strup (vorbis_tag, -1);
|
|
while (tag_matches[i].gstreamer_tag != NULL) {
|
|
if (strcmp (real_vorbis_tag, tag_matches[i].original_tag) == 0) {
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
g_free (real_vorbis_tag);
|
|
return tag_matches[i].gstreamer_tag;
|
|
}
|
|
|
|
/**
|
|
* gst_tag_to_vorbis_tag:
|
|
* @gst_tag: GStreamer tag to convert to vorbiscomment tag
|
|
*
|
|
* Looks up the vorbiscommment tag for a GStreamer tag.
|
|
*
|
|
* Returns: The corresponding vorbiscommment tag or NULL if none exists.
|
|
*/
|
|
G_CONST_RETURN gchar *
|
|
gst_tag_to_vorbis_tag (const gchar * gst_tag)
|
|
{
|
|
int i = 0;
|
|
|
|
g_return_val_if_fail (gst_tag != NULL, NULL);
|
|
|
|
while (tag_matches[i].gstreamer_tag != NULL) {
|
|
if (strcmp (gst_tag, tag_matches[i].gstreamer_tag) == 0) {
|
|
return tag_matches[i].original_tag;
|
|
}
|
|
i++;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
void
|
|
gst_vorbis_tag_add (GstTagList * list, const gchar * tag, const gchar * value)
|
|
{
|
|
const gchar *gst_tag = gst_tag_from_vorbis_tag (tag);
|
|
|
|
if (gst_tag == NULL)
|
|
return;
|
|
|
|
switch (gst_tag_get_type (gst_tag)) {
|
|
case G_TYPE_UINT:
|
|
if (strcmp (gst_tag, GST_TAG_DATE) == 0) {
|
|
GDate *date;
|
|
guint y, d = 1, m = 1;
|
|
gchar *check = (gchar *) value;
|
|
|
|
y = strtoul (check, &check, 10);
|
|
if (*check == '-') {
|
|
check++;
|
|
m = strtoul (check, &check, 10);
|
|
if (*check == '-') {
|
|
check++;
|
|
d = strtoul (check, &check, 10);
|
|
}
|
|
}
|
|
if (*check != '\0')
|
|
break;
|
|
if (y == 0)
|
|
break;
|
|
date = g_date_new_dmy (d, m, y);
|
|
y = g_date_get_julian (date);
|
|
g_date_free (date);
|
|
gst_tag_list_add (list, GST_TAG_MERGE_APPEND, gst_tag, y, NULL);
|
|
break;
|
|
} else {
|
|
guint tmp;
|
|
gchar *check;
|
|
gboolean is_track_number_tag;
|
|
gboolean is_disc_number_tag;
|
|
|
|
is_track_number_tag = (strcmp (gst_tag, GST_TAG_TRACK_NUMBER) == 0);
|
|
is_disc_number_tag =
|
|
(strcmp (gst_tag, GST_TAG_ALBUM_VOLUME_NUMBER) == 0);
|
|
tmp = strtoul (value, &check, 10);
|
|
if (*check == '/' && (is_track_number_tag || is_disc_number_tag)) {
|
|
guint count;
|
|
|
|
check++;
|
|
count = strtoul (check, &check, 10);
|
|
if (*check != '\0' || count == 0)
|
|
break;
|
|
if (is_track_number_tag) {
|
|
gst_tag_list_add (list, GST_TAG_MERGE_APPEND, GST_TAG_TRACK_COUNT,
|
|
count, NULL);
|
|
} else {
|
|
gst_tag_list_add (list, GST_TAG_MERGE_APPEND,
|
|
GST_TAG_ALBUM_VOLUME_COUNT, count, NULL);
|
|
}
|
|
}
|
|
if (*check != '\0')
|
|
break;
|
|
gst_tag_list_add (list, GST_TAG_MERGE_APPEND, gst_tag, tmp, NULL);
|
|
}
|
|
break;
|
|
case G_TYPE_STRING:{
|
|
gchar *valid;
|
|
|
|
if (!g_utf8_validate (value, -1, (const gchar **) &valid)) {
|
|
valid = g_strndup (value, valid - value);
|
|
GST_DEBUG ("Invalid vorbis comment tag, truncated it to %s\n", valid);
|
|
} else {
|
|
valid = g_strdup (value);
|
|
}
|
|
gst_tag_list_add (list, GST_TAG_MERGE_APPEND, gst_tag, valid, NULL);
|
|
g_free (valid);
|
|
break;
|
|
}
|
|
case G_TYPE_DOUBLE:
|
|
gst_tag_list_add (list, GST_TAG_MERGE_APPEND, gst_tag, g_strtod (value,
|
|
NULL), NULL);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_tag_list_from_vorbiscomment_buffer:
|
|
* @buffer: buffer to convert
|
|
* @id_data: identification data at start of stream
|
|
* @id_data_length: length of identification data
|
|
* @ vendor_string: pointer to a string that should take the vendor string of this
|
|
* vorbis comment or NULL if you don't need it.
|
|
*
|
|
* Creates a new tag list that contains the information parsed out of a
|
|
* vorbiscomment packet.
|
|
*
|
|
* Returns: A new #GstTagList with all tags that could be extracted from the
|
|
* given vorbiscomment buffer or NULL on error.
|
|
*/
|
|
GstTagList *
|
|
gst_tag_list_from_vorbiscomment_buffer (const GstBuffer * buffer,
|
|
const guint8 * id_data, const guint id_data_length, gchar ** vendor_string)
|
|
{
|
|
#define ADVANCE(x) G_STMT_START{ \
|
|
data += x; \
|
|
size -= x; \
|
|
if (size < 4) goto error; \
|
|
cur_size = GST_READ_UINT32_LE (data); \
|
|
data += 4; \
|
|
size -= 4; \
|
|
if (cur_size > size) goto error; \
|
|
cur = (gchar*)data; \
|
|
}G_STMT_END
|
|
gchar *cur, *value;
|
|
guint cur_size;
|
|
guint iterations;
|
|
guint8 *data;
|
|
guint size;
|
|
GstTagList *list;
|
|
|
|
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
|
|
g_return_val_if_fail (id_data != NULL, NULL);
|
|
g_return_val_if_fail (id_data_length > 0, NULL);
|
|
|
|
data = GST_BUFFER_DATA (buffer);
|
|
size = GST_BUFFER_SIZE (buffer);
|
|
list = gst_tag_list_new ();
|
|
|
|
if (size < 11)
|
|
goto error;
|
|
if (memcmp (data, id_data, id_data_length) != 0)
|
|
goto error;
|
|
ADVANCE (id_data_length);
|
|
if (vendor_string)
|
|
*vendor_string = g_strndup (cur, cur_size);
|
|
ADVANCE (cur_size);
|
|
iterations = cur_size;
|
|
cur_size = 0;
|
|
while (iterations) {
|
|
ADVANCE (cur_size);
|
|
iterations--;
|
|
cur = g_strndup (cur, cur_size);
|
|
value = strchr (cur, '=');
|
|
if (value == NULL) {
|
|
g_free (cur);
|
|
continue;
|
|
}
|
|
*value = '\0';
|
|
value++;
|
|
if (!g_utf8_validate (value, -1, NULL)) {
|
|
g_free (cur);
|
|
continue;
|
|
}
|
|
gst_vorbis_tag_add (list, cur, value);
|
|
g_free (cur);
|
|
}
|
|
|
|
return list;
|
|
|
|
error:
|
|
gst_tag_list_free (list);
|
|
return NULL;
|
|
#undef ADVANCE
|
|
}
|
|
typedef struct
|
|
{
|
|
guint count;
|
|
guint data_count;
|
|
GList *entries;
|
|
}
|
|
MyForEach;
|
|
|
|
GList *
|
|
gst_tag_to_vorbis_comments (const GstTagList * list, const gchar * tag)
|
|
{
|
|
gchar *result;
|
|
GList *l = NULL;
|
|
guint i;
|
|
const gchar *vorbis_tag = gst_tag_to_vorbis_tag (tag);
|
|
|
|
if (!vorbis_tag)
|
|
return NULL;
|
|
for (i = 0; i < gst_tag_list_get_tag_size (list, tag); i++) {
|
|
switch (gst_tag_get_type (tag)) {
|
|
case G_TYPE_UINT:
|
|
if (strcmp (tag, GST_TAG_DATE) == 0) {
|
|
GDate *date;
|
|
guint u;
|
|
|
|
if (!gst_tag_list_get_uint_index (list, tag, i, &u))
|
|
g_assert_not_reached ();
|
|
date = g_date_new_julian (u);
|
|
/* vorbis suggests using ISO date formats */
|
|
result =
|
|
g_strdup_printf ("%s=%04d-%02d-%02d", vorbis_tag,
|
|
(gint) g_date_get_year (date), (gint) g_date_get_month (date),
|
|
(gint) g_date_get_day (date));
|
|
g_date_free (date);
|
|
} else {
|
|
guint u;
|
|
|
|
if (!gst_tag_list_get_uint_index (list, tag, i, &u))
|
|
g_assert_not_reached ();
|
|
result = g_strdup_printf ("%s=%u", vorbis_tag, u);
|
|
}
|
|
break;
|
|
case G_TYPE_STRING:{
|
|
gchar *str;
|
|
|
|
if (!gst_tag_list_get_string_index (list, tag, i, &str))
|
|
g_assert_not_reached ();
|
|
result = g_strdup_printf ("%s=%s", vorbis_tag, str);
|
|
g_free (str);
|
|
break;
|
|
}
|
|
case G_TYPE_DOUBLE:{
|
|
gdouble value;
|
|
|
|
if (!gst_tag_list_get_double_index (list, tag, i, &value))
|
|
g_assert_not_reached ();
|
|
result = g_strdup_printf ("%s=%f", vorbis_tag, value);
|
|
}
|
|
default:
|
|
GST_DEBUG ("Couldn't write tag %s", tag);
|
|
continue;
|
|
}
|
|
l = g_list_prepend (l, result);
|
|
}
|
|
|
|
return g_list_reverse (l);
|
|
}
|
|
|
|
static void
|
|
write_one_tag (const GstTagList * list, const gchar * tag, gpointer user_data)
|
|
{
|
|
MyForEach *data = (MyForEach *) user_data;
|
|
GList *comments;
|
|
GList *it;
|
|
|
|
comments = gst_tag_to_vorbis_comments (list, tag);
|
|
|
|
for (it = comments; it != NULL; it = it->next) {
|
|
gchar *result = it->data;
|
|
|
|
data->count++;
|
|
data->data_count += strlen (result);
|
|
data->entries = g_list_prepend (data->entries, result);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_tag_list_to_vorbiscomment_buffer:
|
|
* @buffer: tag list to convert
|
|
* @id_data: identification data at start of stream
|
|
* @id_data_length: length of identification data
|
|
* @ vendor_string: string that describes the vendor string or NULL
|
|
*
|
|
* Creates a new vorbiscomment buffer from a tag list.
|
|
*
|
|
* Returns: A new #GstBuffer containing a vorbiscomment buffer with all tags that
|
|
* could be converted from the given tag list.
|
|
*/
|
|
GstBuffer *
|
|
gst_tag_list_to_vorbiscomment_buffer (const GstTagList * list,
|
|
const guint8 * id_data, const guint id_data_length,
|
|
const gchar * vendor_string)
|
|
{
|
|
GstBuffer *buffer;
|
|
guint8 *data;
|
|
guint i;
|
|
GList *l;
|
|
MyForEach my_data = { 0, 0, NULL };
|
|
guint vendor_len;
|
|
int required_size;
|
|
|
|
g_return_val_if_fail (GST_IS_TAG_LIST (list), NULL);
|
|
g_return_val_if_fail (id_data != NULL, NULL);
|
|
g_return_val_if_fail (id_data_length > 0, NULL);
|
|
|
|
if (vendor_string == NULL)
|
|
vendor_string = "GStreamer encoded vorbiscomment";
|
|
vendor_len = strlen (vendor_string);
|
|
required_size = id_data_length + 4 + vendor_len + 4 + 1;
|
|
gst_tag_list_foreach ((GstTagList *) list, write_one_tag, &my_data);
|
|
required_size += 4 * my_data.count + my_data.data_count;
|
|
buffer = gst_buffer_new_and_alloc (required_size);
|
|
data = GST_BUFFER_DATA (buffer);
|
|
memcpy (data, id_data, id_data_length);
|
|
data += id_data_length;
|
|
*((guint32 *) data) = GUINT32_TO_LE (vendor_len);
|
|
data += 4;
|
|
memcpy (data, vendor_string, vendor_len);
|
|
data += vendor_len;
|
|
l = my_data.entries = g_list_reverse (my_data.entries);
|
|
*((guint32 *) data) = GUINT32_TO_LE (my_data.count);
|
|
data += 4;
|
|
for (i = 0; i < my_data.count; i++) {
|
|
guint size;
|
|
gchar *cur;
|
|
|
|
g_assert (l != NULL);
|
|
cur = l->data;
|
|
l = g_list_next (l);
|
|
size = strlen (cur);
|
|
*((guint32 *) data) = GUINT32_TO_LE (size);
|
|
data += 4;
|
|
memcpy (data, cur, size);
|
|
data += size;
|
|
}
|
|
g_list_foreach (my_data.entries, (GFunc) g_free, NULL);
|
|
g_list_free (my_data.entries);
|
|
*data = 1;
|
|
|
|
return buffer;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_vorbis_tag_chain (GstPad * pad, GstBuffer * buffer)
|
|
{
|
|
GstVorbisTag *tag;
|
|
GstBuffer *out = NULL;
|
|
|
|
tag = GST_VORBIS_TAG (gst_pad_get_parent (pad));
|
|
|
|
if (tag->output == OUTPUT_UNKNOWN) {
|
|
GstCaps *vorbis_caps = gst_caps_new_simple ("audio/x-vorbis", NULL);
|
|
GstCaps *tags_caps = gst_caps_new_simple ("application/x-gst-tags", NULL);
|
|
|
|
/* caps nego */
|
|
do {
|
|
#if 0
|
|
if (gst_pad_try_set_caps (tag->srcpad, vorbis_caps) >= 0) {
|
|
tag->output = OUTPUT_DATA;
|
|
} else if (gst_pad_try_set_caps (tag->srcpad, tags_caps) >= 0) {
|
|
tag->output = OUTPUT_TAGS;
|
|
} else {
|
|
const GstCaps *caps =
|
|
gst_static_caps_get (&gst_vorbis_tag_src_template.static_caps);
|
|
if (gst_pad_recover_caps_error (tag->srcpad, caps))
|
|
continue;
|
|
gst_caps_unref (vorbis_caps);
|
|
gst_caps_unref (tags_caps);
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
#endif
|
|
} while (FALSE);
|
|
|
|
gst_caps_unref (vorbis_caps);
|
|
gst_caps_unref (tags_caps);
|
|
}
|
|
|
|
if (GST_BUFFER_SIZE (buffer) == 0)
|
|
GST_ELEMENT_ERROR (tag, CORE, TAG, (NULL),
|
|
("empty buffers are not allowed in vorbis data"));
|
|
|
|
if (GST_BUFFER_DATA (buffer)[0] == 3) {
|
|
gchar *vendor;
|
|
GstTagList *list =
|
|
gst_tag_list_from_vorbiscomment_buffer (buffer, (guchar *) "\003vorbis",
|
|
7, &vendor);
|
|
const GstTagList *found_tags;
|
|
|
|
gst_data_unref (GST_DATA (buffer));
|
|
if (list == NULL) {
|
|
GST_ELEMENT_ERROR (tag, CORE, TAG, (NULL),
|
|
("invalid data in vorbis comments"));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
//gst_element_found_tags_for_pad (GST_ELEMENT (tag), tag->srcpad, 0,
|
|
// gst_tag_list_copy (list));
|
|
|
|
found_tags = gst_tag_setter_get_list (GST_TAG_SETTER (tag));
|
|
if (found_tags)
|
|
gst_tag_list_insert (list, found_tags,
|
|
gst_tag_setter_get_merge_mode (GST_TAG_SETTER (tag)));
|
|
out = gst_tag_list_to_vorbiscomment_buffer (list, (guchar *) "\003vorbis",
|
|
7, vendor);
|
|
gst_tag_list_free (list);
|
|
g_free (vendor);
|
|
}
|
|
|
|
if (tag->output == OUTPUT_DATA) {
|
|
gst_pad_push (tag->srcpad, out);
|
|
} else {
|
|
gst_data_unref (GST_DATA (out));
|
|
}
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstElementStateReturn
|
|
gst_vorbis_tag_change_state (GstElement * element)
|
|
{
|
|
GstVorbisTag *tag;
|
|
|
|
tag = GST_VORBIS_TAG (element);
|
|
|
|
switch (GST_STATE_TRANSITION (element)) {
|
|
case GST_STATE_NULL_TO_READY:
|
|
break;
|
|
case GST_STATE_READY_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_PAUSED_TO_PLAYING:
|
|
/* do something to get out of the chain function faster */
|
|
break;
|
|
case GST_STATE_PLAYING_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_PAUSED_TO_READY:
|
|
tag->output = OUTPUT_UNKNOWN;
|
|
break;
|
|
case GST_STATE_READY_TO_NULL:
|
|
break;
|
|
}
|
|
|
|
return parent_class->change_state (element);
|
|
}
|