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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"
using namespace std;
vector<Filter const *> Filter::_filters;
/** @param i Our id.
* @param n User-visible name.
* @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 v, string p)
: _id (i)
, _name (n)
, _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 */
_filters.push_back (new Filter ("pphb", "Horizontal deblocking filter", "", "hb"));
_filters.push_back (new Filter ("ppvb", "Vertical deblocking filter", "", "vb"));
_filters.push_back (new Filter ("ppha", "Horizontal deblocking filter A", "", "ha"));
_filters.push_back (new Filter ("ppva", "Vertical deblocking filter A", "", "va"));
_filters.push_back (new Filter ("pph1", "Experimental horizontal deblocking filter 1", "", "h1"));
_filters.push_back (new Filter ("pphv", "Experimental vertical deblocking filter 1", "", "v1"));
_filters.push_back (new Filter ("ppdr", "Deringing filter", "", "dr"));
_filters.push_back (new Filter ("pplb", "Linear blend deinterlacer", "", "lb"));
_filters.push_back (new Filter ("ppli", "Linear interpolating deinterlacer", "", "li"));
_filters.push_back (new Filter ("ppci", "Cubic interpolating deinterlacer", "", "ci"));
_filters.push_back (new Filter ("ppmd", "Median deinterlacer", "", "md"));
_filters.push_back (new Filter ("ppfd", "FFMPEG deinterlacer", "", "fd"));
_filters.push_back (new Filter ("ppl5", "FIR low-pass deinterlacer", "", "l5"));
_filters.push_back (new Filter ("mcdeint", "Motion compensating deinterlacer", "mcdeint", ""));
_filters.push_back (new Filter ("kerndeint", "Kernel deinterlacer", "kerndeint", ""));
_filters.push_back (new Filter ("yadif", "Yet Another Deinterlacing Filter", "yadif", ""));
_filters.push_back (new Filter ("pptn", "Temporal noise reducer", "", "tn"));
_filters.push_back (new Filter ("ppfq", "Force quantizer", "", "fq"));
_filters.push_back (new Filter ("gradfun", "Gradient debander", "gradfun", ""));
_filters.push_back (new Filter ("unsharp", "Unsharp mask and Gaussian blur", "unsharp", ""));
_filters.push_back (new Filter ("denoise3d", "3D denoiser", "denoise3d", ""));
_filters.push_back (new Filter ("hqdn3d", "High quality 3D denoiser", "hqdn3d", ""));
_filters.push_back (new Filter ("telecine", "Telecine filter", "telecine", ""));
_filters.push_back (new Filter ("ow", "Overcomplete wavelet denoiser", "mp=ow", ""));
}
/** @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 += ",";
}
vf += (*i)->vf ();
}
if (!(*i)->pp().empty ()) {
if (!pp.empty()) {
pp += ",";
}
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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