core: allocate OSD text buffers dynamically

The OSD text buffers (mp_osd_msg_t.text and osd_state.text) used to be
static arrays, with the buffer sizes spread all over the code as magic
constants. Make the buffers dynamically allocated and remove the
arbitrary length limits.

1 files changed, 9 insertions, 0 deletions

diff --git a/sub/sub.c b/sub/sub.c
index 880793373c..efe648948c 100644
--- a/sub/sub.c
+++ b/sub/sub.c
@@ -1239,9 +1239,18 @@ struct osd_state *osd_create(void)
 #ifdef CONFIG_FREETYPE
     force_load_font = 1;
 #endif
+    osd_set_text(osd, NULL);
     return osd;
 }
 
+void osd_set_text(struct osd_state *osd, const char *text) {
+    talloc_free(osd->osd_text);
+    //osd->text must never be NULL
+    if (!text)
+        text = "";
+    osd->osd_text = talloc_strdup(osd, text);
+}
+
 int vo_osd_changed_flag=0;
 
 void osd_remove_text(struct osd_state *osd, int dxs, int dys,