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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file src/filter.cc
* @brief A class to describe one of FFmpeg's video or post-processing filters.
*/
#include "filter.h"
extern "C" {
#include <libavfilter/avfilter.h>
#include <libpostproc/postprocess.h>
}
#include "i18n.h"
using namespace std;
vector<Filter const *> Filter::_filters;
/** @param i Our id.
* @param n User-visible name.
* @param c User-visible category.
* @param v String for a FFmpeg video filter descriptor, or "".
* @param p String for a FFmpeg post-processing descriptor, or "".
*/
Filter::Filter (string i, string n, string c, string v, string p)
: _id (i)
, _name (n)
, _category (c)
, _vf (v)
, _pp (p)
{
}
/** @return All available filters */
vector<Filter const *>
Filter::all ()
{
return _filters;
}
/** Set up the static _filters vector; must be called before from_*
* methods are used.
*/
void
Filter::setup_filters ()
{
/* Note: "none" is a magic id name, so don't use it here */
maybe_add (N_("pphb"), _("Horizontal deblocking filter"), _("De-blocking"), N_(""), N_("hb"));
maybe_add (N_("ppvb"), _("Vertical deblocking filter"), _("De-blocking"), N_(""), N_("vb"));
maybe_add (N_("ppha"), _("Horizontal deblocking filter A"), _("De-blocking"), N_(""), N_("ha"));
maybe_add (N_("ppva"), _("Vertical deblocking filter A"), _("De-blocking"), N_(""), N_("va"));
maybe_add (N_("pph1"), _("Experimental horizontal deblocking filter 1"), _("De-blocking"), N_(""), N_("h1"));
maybe_add (N_("pphv"), _("Experimental vertical deblocking filter 1"), _("De-blocking"), N_(""), N_("v1"));
maybe_add (N_("ppdr"), _("Deringing filter"), _("Misc"), N_(""), N_("dr"));
maybe_add (N_("pplb"), _("Linear blend deinterlacer"), _("De-interlacing"), N_(""), N_("lb"));
maybe_add (N_("ppli"), _("Linear interpolating deinterlacer"), _("De-interlacing"), N_(""), N_("li"));
maybe_add (N_("ppci"), _("Cubic interpolating deinterlacer"), _("De-interlacing"), N_(""), N_("ci"));
maybe_add (N_("ppmd"), _("Median deinterlacer"), _("De-interlacing"), N_(""), N_("md"));
maybe_add (N_("ppfd"), _("FFMPEG deinterlacer"), _("De-interlacing"), N_(""), N_("fd"));
maybe_add (N_("ppl5"), _("FIR low-pass deinterlacer"), _("De-interlacing"), N_(""), N_("l5"));
maybe_add (N_("mcdeint"), _("Motion compensating deinterlacer"), _("De-interlacing"), N_("mcdeint"), N_(""));
maybe_add (N_("kerndeint"), _("Kernel deinterlacer"), _("De-interlacing"), N_("kerndeint"), N_(""));
maybe_add (N_("yadif"), _("Yet Another Deinterlacing Filter"), _("De-interlacing"), N_("yadif"), N_(""));
maybe_add (N_("pptn"), _("Temporal noise reducer"), _("Noise reduction"), N_(""), N_("tn"));
maybe_add (N_("ppfq"), _("Force quantizer"), _("Misc"), N_(""), N_("fq"));
maybe_add (N_("gradfun"), _("Gradient debander"), _("Misc"), N_("gradfun"), N_(""));
maybe_add (N_("unsharp"), _("Unsharp mask and Gaussian blur"), _("Misc"), N_("unsharp"), N_(""));
maybe_add (N_("denoise3d"), _("3D denoiser"), _("Noise reduction"), N_("denoise3d"), N_(""));
maybe_add (N_("hqdn3d"), _("High quality 3D denoiser"), _("Noise reduction"), N_("hqdn3d"), N_(""));
maybe_add (N_("telecine"), _("Telecine filter"), _("Misc"), N_("telecine"), N_(""));
maybe_add (N_("ow"), _("Overcomplete wavelet denoiser"), _("Noise reduction"), N_("mp=ow"), N_(""));
}
void
Filter::maybe_add (string i, string n, string c, string v, string p)
{
if (!v.empty ()) {
if (avfilter_get_by_name (i.c_str())) {
_filters.push_back (new Filter (i, n, c, v, p));
}
} else if (!p.empty ()) {
pp_mode* m = pp_get_mode_by_name_and_quality (p.c_str(), PP_QUALITY_MAX);
if (m) {
_filters.push_back (new Filter (i, n, c, v, p));
pp_free_mode (m);
}
}
}
/** @param filters Set of filters.
* @return A pair; .first is a string to pass to FFmpeg for the video filters,
* .second is a string to pass for the post-processors.
*/
pair<string, string>
Filter::ffmpeg_strings (vector<Filter const *> const & filters)
{
string vf;
string pp;
for (vector<Filter const *>::const_iterator i = filters.begin(); i != filters.end(); ++i) {
if (!(*i)->vf().empty ()) {
if (!vf.empty ()) {
vf += N_(",");
}
vf += (*i)->vf ();
}
if (!(*i)->pp().empty ()) {
if (!pp.empty()) {
pp += N_(",");
}
pp += (*i)->pp ();
}
}
return make_pair (vf, pp);
}
/** @param d Our id.
* @return Corresponding Filter, or 0.
*/
Filter const *
Filter::from_id (string d)
{
vector<Filter const *>::iterator i = _filters.begin ();
while (i != _filters.end() && (*i)->id() != d) {
++i;
}
if (i == _filters.end ()) {
return 0;
}
return *i;
}
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