vector<Filter> Filter::_filters;
-/** @param i Our id.
- * @param n User-visible name.
- * @param c User-visible category.
- * @param f String for a FFmpeg filter descriptor.
+/** @param id Our id.
+ * @param name User-visible name.
+ * @param category User-visible category.
+ * @param ffmpeg_string String for a FFmpeg filter descriptor.
*/
-Filter::Filter (string i, string n, string c, string f)
- : _id (i)
- , _name (n)
- , _category (c)
- , _ffmpeg (f)
+Filter::Filter(string id, string name, string category, string ffmpeg_string)
+ : _id(id)
+ , _name(name)
+ , _category(category)
+ , _ffmpeg(ffmpeg_string)
{
}
{
/* Note: "none" is a magic id name, so don't use it here */
+ auto maybe_add = [](string id, string name, string category, string ffmpeg)
+ {
+ string check_name = ffmpeg;
+ size_t end = check_name.find("=");
+ if (end != string::npos) {
+ check_name = check_name.substr(0, end);
+ }
+
+ if (avfilter_get_by_name(check_name.c_str())) {
+ _filters.push_back(Filter(id, name, category, ffmpeg));
+ }
+ };
+
maybe_add (N_("vflip"), _("Vertical flip"), _("Orientation"), N_("vflip"));
maybe_add (N_("hflip"), _("Horizontal flip"), _("Orientation"), N_("hflip"));
maybe_add (N_("90clock"), _("Rotate 90 degrees clockwise"), _("Orientation"), N_("transpose=dir=clock"));
maybe_add (N_("hqdn3d"), _("High quality 3D denoiser"), _("Noise reduction"), N_("hqdn3d"));
maybe_add (N_("telecine"), _("Telecine filter"), _("Misc"), N_("telecine"));
maybe_add (N_("ow"), _("Overcomplete wavelet denoiser"), _("Noise reduction"), N_("mp=ow"));
-}
-
-
-void
-Filter::maybe_add (string i, string n, string c, string f)
-{
- string check_name = f;
- size_t end = check_name.find("=");
- if (end != string::npos) {
- check_name = check_name.substr (0, end);
- }
-
- if (avfilter_get_by_name(check_name.c_str())) {
- _filters.push_back (Filter(i, n, c, f));
- }
+ maybe_add (N_("premultiply"), _("Premultiply alpha channel"), _("Misc"), N_("premultiply=inplace=1"));
}