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id3mux: write private data tag

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Handle "PRIV" tag in id3mux. Write owner
identifier and private data and add to the
id3v2 frame.

https://bugzilla.gnome.org/show_bug.cgi?id=758728
This commit is contained in:
Ravi Kiran K N 2015-11-27 11:33:07 +05:30 committed by Tim-Philipp Müller
parent d387bfd188
commit 6b643fdff6
1 changed files with 53 additions and 1 deletions
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54
gst/id3tag/id3tag.c
View file

@ -462,7 +462,58 @@ add_text_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
g_free (strings);
}
/* FIXME: id3v2-private frames need to be extracted as samples */
static void
add_private_data_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
const gchar * tag, guint num_tags, const gchar * frame_id)
{
gint n;
for (n = 0; n < num_tags; ++n) {
GstId3v2Frame frame;
GstSample *sample = NULL;
const GstStructure *structure = NULL;
GstBuffer *binary = NULL;
GstBuffer *priv_frame = NULL;
const gchar *owner_str = NULL;
guint owner_len = 0;
GstMapInfo mapinfo;
if (!gst_tag_list_get_sample_index (list, tag, n, &sample))
continue;
structure = gst_sample_get_info (sample);
if (structure != NULL
&& !strcmp (gst_structure_get_name (structure), "ID3PrivateFrame")) {
owner_str = gst_structure_get_string (structure, "owner");
if (owner_str != NULL) {
owner_len = strlen (owner_str) + 1;
priv_frame = gst_buffer_new_and_alloc (owner_len);
gst_buffer_fill (priv_frame, 0, owner_str, owner_len);
binary = gst_buffer_ref (gst_sample_get_buffer (sample));
priv_frame = gst_buffer_append (priv_frame, binary);
id3v2_frame_init (&frame, frame_id, 0);
if (gst_buffer_map (priv_frame, &mapinfo, GST_MAP_READ)) {
id3v2_frame_write_bytes (&frame, mapinfo.data, mapinfo.size);
g_array_append_val (id3v2tag->frames, frame);
gst_buffer_unmap (priv_frame, &mapinfo);
} else {
GST_WARNING ("Couldn't map priv frame tag buffer");
id3v2_frame_unset (&frame);
}
gst_buffer_unref (priv_frame);
gst_sample_unref (sample);
}
} else {
GST_WARNING ("Couldn't find ID3PrivateFrame structure");
}
}
}
static void
add_id3v2frame_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
const gchar * tag, guint num_tags, const gchar * unused)
@ -1095,6 +1146,7 @@ static const struct
GST_TAG_MUSICAL_KEY, add_text_tag, "TKEY"}, {
/* Private frames */
GST_TAG_PRIVATE_DATA, add_private_data_tag, "PRIV"}, {
GST_ID3_DEMUX_TAG_ID3V2_FRAME, add_id3v2frame_tag, NULL}, {
/* Track and album numbers */