/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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,
+ DCP-o-matic 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.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
+
/** @file src/filter.cc
- * @brief A class to describe one of FFmpeg's video or post-processing filters.
+ * @brief A class to describe one of FFmpeg's video or audio filters.
*/
+
+#include "dcpomatic_assert.h"
#include "filter.h"
+#include <dcp/warnings.h>
+LIBDCP_DISABLE_WARNINGS
+extern "C" {
+#include <libavfilter/avfilter.h>
+}
+LIBDCP_ENABLE_WARNINGS
+#include <algorithm>
+
+#include "i18n.h"
+
using namespace std;
+using boost::optional;
+
-vector<Filter const *> Filter::_filters;
+vector<Filter> 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 "".
+
+/** @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 v, string p)
- : _id (i)
- , _name (n)
- , _vf (v)
- , _pp (p)
+Filter::Filter(string id, string name, string category, string ffmpeg_string)
+ : _id(id)
+ , _name(name)
+ , _category(category)
+ , _ffmpeg(ffmpeg_string)
{
}
+
/** @return All available filters */
-vector<Filter const *>
+vector<Filter>
Filter::all ()
{
return _filters;
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", ""));
+
+ 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_("90anticlock"), _("Rotate 90 degrees anti-clockwise"), _("Orientation"), N_("transpose=dir=cclock"));
+ maybe_add (N_("mcdeint"), _("Motion compensating deinterlacer"), _("De-interlacing"), N_("mcdeint"));
+ maybe_add (N_("kerndeint"), _("Kernel deinterlacer"), _("De-interlacing"), N_("kerndeint"));
+ maybe_add (N_("yadif"), _("Yet Another Deinterlacing Filter"), _("De-interlacing"), N_("yadif"));
+ maybe_add (N_("bwdif"), _("Bob Weaver Deinterlacing Filter"), _("De-interlacing"), N_("bwdif"));
+ maybe_add (N_("weave"), _("Weave filter"), _("De-interlacing"), N_("weave"));
+ maybe_add (N_("gradfun"), _("Gradient debander"), _("Misc"), N_("gradfun"));
+ maybe_add (N_("unsharp"), _("Unsharp mask and Gaussian blur"), _("Misc"), N_("unsharp"));
+ maybe_add (N_("denoise3d"), _("3D denoiser"), _("Noise reduction"), N_("denoise3d"));
+ 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"));
+ maybe_add (N_("premultiply"), _("Premultiply alpha channel"), _("Misc"), N_("premultiply=inplace=1"));
}
+
/** @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.
+ * @return String to pass to FFmpeg for the video filters.
*/
-pair<string, string>
-Filter::ffmpeg_strings (vector<Filter const *> const & filters)
+string
+Filter::ffmpeg_string(vector<Filter> 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 ();
+ string ff;
+
+ for (auto const& i: filters) {
+ if (!ff.empty ()) {
+ ff += N_(",");
}
+ ff += i.ffmpeg();
}
- return make_pair (vf, pp);
+ return ff;
}
+
/** @param d Our id.
- * @return Corresponding Filter, or 0.
+ * @return Corresponding Filter, if found.
*/
-Filter const *
-Filter::from_id (string d)
+optional<Filter>
+Filter::from_id(string id)
{
- vector<Filter const *>::iterator i = _filters.begin ();
- while (i != _filters.end() && (*i)->id() != d) {
- ++i;
+ auto iter = std::find_if(_filters.begin(), _filters.end(), [id](Filter const& filter) { return filter.id() == id; });
+ if (iter == _filters.end()) {
+ return {};
}
+ return *iter;
+}
+
+
+bool
+operator==(Filter const& a, Filter const& b)
+{
+ return a.id() == b.id() && a.name() == b.name() && a.category() == b.category() && a.ffmpeg() == b.ffmpeg();
+}
- if (i == _filters.end ()) {
- return 0;
- }
- return *i;
+bool
+operator!=(Filter const& a, Filter const& b)
+{
+ return a.id() != b.id() || a.name() != b.name() || a.category() != b.category() || a.ffmpeg() != b.ffmpeg();
}
+
+bool
+operator<(Filter const& a, Filter const& b)
+{
+ if (a.id() != b.id()) {
+ return a.id() < b.id();
+ }
+
+ if (a.name() != b.name()) {
+ return a.name() < b.name();
+ }
+
+ if (a.category() != b.category()) {
+ return a.category() < b.category();
+ }
+
+ return a.ffmpeg() < b.ffmpeg();
+}