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assrender: Improve embedded font usage

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For this add some new mimetypes and also check the filename extension.

Fixes bug #603938.
This commit is contained in:
Sebastian Dröge 2009-12-07 18:30:05 +01:00
parent 875811d7e7
commit d06e9c40e6
1 changed files with 38 additions and 5 deletions
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41
ext/assrender/gstassrender.c
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@ -24,7 +24,7 @@
#include "gstassrender.h"
#include <gst/video/video.h>
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_ass_render_debug);
GST_DEBUG_CATEGORY_STATIC (gst_ass_render_lib_debug);
@ -963,6 +963,15 @@ gst_ass_render_chain_text (GstPad * pad, GstBuffer * buffer)
static void
gst_ass_render_handle_tags (GstAssRender * render, GstTagList * taglist)
{
static const gchar *mimetypes[] = {
"application/x-font-ttf",
"application/x-font-otf",
"application/x-truetype-font"
};
static const gchar *extensions[] = {
".otf",
".ttf"
};
guint tag_size;
guint index;
@ -975,6 +984,9 @@ gst_ass_render_handle_tags (GstAssRender * render, GstTagList * taglist)
GstBuffer *buf;
GstCaps *caps;
GstStructure *structure;
gboolean valid_mimetype, valid_extension;
guint j;
const gchar *filename;
GST_DEBUG_OBJECT (render, "TAG event has attachments");
@ -986,11 +998,32 @@ gst_ass_render_handle_tags (GstAssRender * render, GstTagList * taglist)
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;
valid_mimetype = FALSE;
valid_extension = FALSE;
for (j = 0; j < G_N_ELEMENTS (mimetypes); j++) {
if (gst_structure_has_name (structure, mimetypes[j])) {
valid_mimetype = TRUE;
break;
}
}
filename = gst_structure_get_string (structure, "filename");
if (!filename)
continue;
if (!valid_mimetype) {
guint len = strlen (filename);
const gchar *extension = filename + len - 4;
for (j = 0; j < G_N_ELEMENTS (extensions); j++) {
if (g_ascii_strcasecmp (extension, extensions[j]) == 0) {
valid_extension = TRUE;
break;
}
}
}
if (valid_mimetype || valid_extension) {
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);