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assrender: Fix attachment tag handling and move it into a separate function

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...to prevent code duplication.
This commit is contained in:
Sebastian Dröge 2009-12-07 14:35:55 +01:00
parent 2852ecbe12
commit 3e55a5ba7f
1 changed files with 44 additions and 63 deletions
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107
ext/assrender/gstassrender.c
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@ -721,6 +721,45 @@ gst_ass_render_chain_text (GstPad * pad, GstBuffer * buffer)
return ret;
}
static void
gst_ass_render_handle_tags (GstAssRender * render, GstTagList * taglist)
{
guint tag_size;
guint index;
if (!taglist)
return;
tag_size = gst_tag_list_get_tag_size (taglist, GST_TAG_ATTACHMENT);
if (tag_size > 0 && render->embeddedfonts) {
const GValue *value;
GstBuffer *buf;
GstCaps *caps;
GstStructure *structure;
GST_DEBUG_OBJECT (render, "TAG event has attachments");
for (index = 0; index < tag_size; index++) {
value = gst_tag_list_get_value_index (taglist, GST_TAG_ATTACHMENT, index);
buf = gst_value_get_buffer (value);
if (!buf || !GST_BUFFER_CAPS (buf))
continue;
caps = GST_BUFFER_CAPS (buf);
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_name (structure, "application/x-truetype-font")
&& gst_structure_has_field (structure, "filename")) {
const gchar *filename;
filename = gst_structure_get_string (structure, "filename");
ass_add_font (render->ass_library, (gchar *) filename,
(gchar *) GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
GST_DEBUG_OBJECT (render, "registered new font %s", filename);
}
}
}
}
static gboolean
gst_ass_render_event_video (GstPad * pad, GstEvent * event)
{
@ -763,43 +802,13 @@ gst_ass_render_event_video (GstPad * pad, GstEvent * event)
}
case GST_EVENT_TAG:
{
GstTagList *taglist = gst_tag_list_new ();
guint tag_size;
guint index;
GstTagList *taglist = NULL;
/* tag events may contain attachments which might be fonts */
GST_DEBUG_OBJECT (render, "got TAG event");
gst_event_parse_tag (event, &taglist);
tag_size = gst_tag_list_get_tag_size (taglist, GST_TAG_ATTACHMENT);
if (tag_size > 0 && render->embeddedfonts) {
const GValue *value;
GstBuffer *buf;
GstCaps *caps;
GstStructure *structure;
GST_DEBUG_OBJECT (render, "TAG event has attachments");
for (index = 0; index < tag_size; index++) {
value = gst_tag_list_get_value_index (taglist, GST_TAG_ATTACHMENT,
index);
buf = gst_value_get_buffer (value);
if (!buf || !GST_BUFFER_CAPS (buf))
continue;
caps = GST_BUFFER_CAPS (buf);
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_name (structure, "application/x-truetype-font")
&& gst_structure_has_field (structure, "filename")) {
const gchar *filename;
filename = gst_structure_get_string (structure, "filename");
ass_add_font (render->ass_library, (gchar *) filename,
(gchar *) GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
GST_DEBUG_OBJECT (render, "registered new font %s", filename);
}
}
}
gst_ass_render_handle_tags (render, taglist);
ret = gst_pad_push_event (render->srcpad, event);
break;
}
@ -895,41 +904,13 @@ gst_ass_render_event_text (GstPad * pad, GstEvent * event)
break;
case GST_EVENT_TAG:
{
GstTagList *taglist = gst_tag_list_new ();
guint tag_size;
guint index;
GstTagList *taglist = NULL;
/* tag events may contain attachments which might be fonts */
GST_DEBUG_OBJECT (render, "got TAG event");
gst_event_parse_tag (event, &taglist);
tag_size = gst_tag_list_get_tag_size (taglist, GST_TAG_ATTACHMENT);
if (tag_size > 0 && render->embeddedfonts) {
const GValue *value;
GstBuffer *buf;
GstCaps *caps;
GstStructure *structure;
GST_DEBUG_OBJECT (render, "TAG event has attachments");
for (index = 0; index < tag_size; index++) {
value = gst_tag_list_get_value_index (taglist, GST_TAG_ATTACHMENT,
index);
buf = gst_value_get_buffer (value);
if (!buf || !GST_BUFFER_CAPS (buf))
continue;
caps = GST_BUFFER_CAPS (buf);
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_name (structure, "application/x-truetype-font")
&& gst_structure_has_field (structure, "filename")) {
const gchar *filename;
filename = gst_structure_get_string (structure, "filename");
ass_add_font (render->ass_library, (gchar *) filename,
(gchar *) GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
GST_DEBUG_OBJECT (render, "registered new font %s", filename);
}
}
}
gst_ass_render_handle_tags (render, taglist);
ret = gst_pad_push_event (render->srcpad, event);
break;
}