/*
Copyright (C) 2013-2016 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/>.
*/
#include "log.h"
#include "exceptions.h"
#include "frame_rate_change.h"
-#include "safe_stringstream.h"
-#include "raw_convert.h"
#include "subtitle_content.h"
+#include <dcp/raw_convert.h>
#include <libcxml/cxml.h>
extern "C" {
#include <libavformat/avformat.h>
using std::cout;
using std::pair;
using std::make_pair;
+using std::max;
using boost::shared_ptr;
using boost::dynamic_pointer_cast;
using boost::optional;
+using dcp::raw_convert;
int const FFmpegContentProperty::SUBTITLE_STREAMS = 100;
int const FFmpegContentProperty::SUBTITLE_STREAM = 101;
FFmpegContent::FFmpegContent (shared_ptr<const Film> film, boost::filesystem::path p)
: Content (film, p)
{
- video.reset (new VideoContent (this, film));
- audio.reset (new AudioContent (this, film));
- subtitle.reset (new SubtitleContent (this, film));
- set_default_colour_conversion ();
}
FFmpegContent::FFmpegContent (shared_ptr<const Film> film, cxml::ConstNodePtr node, int version, list<string>& notes)
: Content (film, node)
{
- video = VideoContent::from_xml (this, film, node, version);
- audio = AudioContent::from_xml (this, film, node);
- subtitle = SubtitleContent::from_xml (this, film, node, version);
+ video = VideoContent::from_xml (this, node, version);
+ audio = AudioContent::from_xml (this, node, version);
+ subtitle = SubtitleContent::from_xml (this, node, version);
list<cxml::NodePtr> c = node->node_children ("SubtitleStream");
for (list<cxml::NodePtr>::const_iterator i = c.begin(); i != c.end(); ++i) {
}
-FFmpegContent::FFmpegContent (shared_ptr<const Film> film, vector<boost::shared_ptr<Content> > c)
+FFmpegContent::FFmpegContent (shared_ptr<const Film> film, vector<shared_ptr<Content> > c)
: Content (film, c)
{
- video.reset (new VideoContent (this, film, c));
- audio.reset (new AudioContent (this, film, c));
- subtitle.reset (new SubtitleContent (this, film, c));
+ vector<shared_ptr<Content> >::const_iterator i = c.begin ();
+
+ bool need_video = false;
+ bool need_audio = false;
+ bool need_subtitle = false;
+
+ if (i != c.end ()) {
+ need_video = static_cast<bool> ((*i)->video);
+ need_audio = static_cast<bool> ((*i)->audio);
+ need_subtitle = static_cast<bool> ((*i)->subtitle);
+ }
+
+ while (i != c.end ()) {
+ if (need_video != static_cast<bool> ((*i)->video)) {
+ throw JoinError (_("Content to be joined must all have or not have video"));
+ }
+ if (need_audio != static_cast<bool> ((*i)->audio)) {
+ throw JoinError (_("Content to be joined must all have or not have audio"));
+ }
+ if (need_subtitle != static_cast<bool> ((*i)->subtitle)) {
+ throw JoinError (_("Content to be joined must all have or not have subtitles"));
+ }
+ ++i;
+ }
+
+ if (need_video) {
+ video.reset (new VideoContent (this, c));
+ }
+ if (need_audio) {
+ audio.reset (new AudioContent (this, c));
+ }
+ if (need_subtitle) {
+ subtitle.reset (new SubtitleContent (this, c));
+ }
shared_ptr<FFmpegContent> ref = dynamic_pointer_cast<FFmpegContent> (c[0]);
DCPOMATIC_ASSERT (ref);
for (size_t i = 0; i < c.size(); ++i) {
shared_ptr<FFmpegContent> fc = dynamic_pointer_cast<FFmpegContent> (c[i]);
- if (fc->subtitle->use() && *(fc->_subtitle_stream.get()) != *(ref->_subtitle_stream.get())) {
+ if (fc->subtitle && fc->subtitle->use() && *(fc->_subtitle_stream.get()) != *(ref->_subtitle_stream.get())) {
throw JoinError (_("Content to be joined must use the same subtitle stream."));
}
}
}
void
-FFmpegContent::as_xml (xmlpp::Node* node) const
+FFmpegContent::as_xml (xmlpp::Node* node, bool with_paths) const
{
node->add_child("Type")->add_child_text ("FFmpeg");
- Content::as_xml (node);
- video->as_xml (node);
- audio->as_xml (node);
- subtitle->as_xml (node);
+ Content::as_xml (node, with_paths);
+
+ if (video) {
+ video->as_xml (node);
+ }
+
+ if (audio) {
+ audio->as_xml (node);
+
+ BOOST_FOREACH (AudioStreamPtr i, audio->streams ()) {
+ shared_ptr<FFmpegAudioStream> f = dynamic_pointer_cast<FFmpegAudioStream> (i);
+ DCPOMATIC_ASSERT (f);
+ f->as_xml (node->add_child("AudioStream"));
+ }
+ }
+
+ if (subtitle) {
+ subtitle->as_xml (node);
+ }
boost::mutex::scoped_lock lm (_mutex);
(*i)->as_xml (t);
}
- BOOST_FOREACH (AudioStreamPtr i, audio->streams ()) {
- shared_ptr<FFmpegAudioStream> f = dynamic_pointer_cast<FFmpegAudioStream> (i);
- DCPOMATIC_ASSERT (f);
- f->as_xml (node->add_child("AudioStream"));
- }
-
for (vector<Filter const *>::const_iterator i = _filters.begin(); i != _filters.end(); ++i) {
node->add_child("Filter")->add_child_text ((*i)->id ());
}
node->add_child("FirstVideo")->add_child_text (raw_convert<string> (_first_video.get().get()));
}
- node->add_child("ColorRange")->add_child_text (raw_convert<string> (_color_range));
- node->add_child("ColorPrimaries")->add_child_text (raw_convert<string> (_color_primaries));
- node->add_child("ColorTransferCharacteristic")->add_child_text (raw_convert<string> (_color_trc));
- node->add_child("Colorspace")->add_child_text (raw_convert<string> (_colorspace));
+ node->add_child("ColorRange")->add_child_text (raw_convert<string> (static_cast<int> (_color_range)));
+ node->add_child("ColorPrimaries")->add_child_text (raw_convert<string> (static_cast<int> (_color_primaries)));
+ node->add_child("ColorTransferCharacteristic")->add_child_text (raw_convert<string> (static_cast<int> (_color_trc)));
+ node->add_child("Colorspace")->add_child_text (raw_convert<string> (static_cast<int> (_colorspace)));
if (_bits_per_pixel) {
node->add_child("BitsPerPixel")->add_child_text (raw_convert<string> (_bits_per_pixel.get ()));
}
Content::examine (job);
shared_ptr<FFmpegExaminer> examiner (new FFmpegExaminer (shared_from_this (), job));
- video->take_from_examiner (examiner);
- set_default_colour_conversion ();
+
+ if (examiner->has_video ()) {
+ video.reset (new VideoContent (this));
+ video->take_from_examiner (examiner);
+ }
+
+ boost::filesystem::path first_path = path (0);
{
boost::mutex::scoped_lock lm (_mutex);
- _subtitle_streams = examiner->subtitle_streams ();
- if (!_subtitle_streams.empty ()) {
- _subtitle_stream = _subtitle_streams.front ();
+ if (examiner->has_video ()) {
+ _first_video = examiner->first_video ();
+ _color_range = examiner->color_range ();
+ _color_primaries = examiner->color_primaries ();
+ _color_trc = examiner->color_trc ();
+ _colorspace = examiner->colorspace ();
+ _bits_per_pixel = examiner->bits_per_pixel ();
}
- BOOST_FOREACH (shared_ptr<FFmpegAudioStream> i, examiner->audio_streams ()) {
- audio->add_stream (i);
- }
+ if (!examiner->audio_streams().empty ()) {
+ audio.reset (new AudioContent (this));
+
+ BOOST_FOREACH (shared_ptr<FFmpegAudioStream> i, examiner->audio_streams ()) {
+ audio->add_stream (i);
+ }
- if (!audio->streams().empty ()) {
AudioStreamPtr as = audio->streams().front();
AudioMapping m = as->mapping ();
- film()->make_audio_mapping_default (m);
+ film()->make_audio_mapping_default (m, first_path);
as->set_mapping (m);
}
- _first_video = examiner->first_video ();
+ _subtitle_streams = examiner->subtitle_streams ();
+ if (!_subtitle_streams.empty ()) {
+ subtitle.reset (new SubtitleContent (this));
+ _subtitle_stream = _subtitle_streams.front ();
+ }
+
+ }
- _color_range = examiner->color_range ();
- _color_primaries = examiner->color_primaries ();
- _color_trc = examiner->color_trc ();
- _colorspace = examiner->colorspace ();
- _bits_per_pixel = examiner->bits_per_pixel ();
+ if (examiner->has_video ()) {
+ set_default_colour_conversion ();
}
signal_changed (FFmpegContentProperty::SUBTITLE_STREAMS);
string
FFmpegContent::summary () const
{
- /* Get the string() here so that the name does not have quotes around it */
- return String::compose (_("%1 [movie]"), path_summary ());
+ if (video && audio) {
+ return String::compose (_("%1 [movie]"), path_summary ());
+ } else if (video) {
+ return String::compose (_("%1 [video]"), path_summary ());
+ } else if (audio) {
+ return String::compose (_("%1 [audio]"), path_summary ());
+ }
+
+ return path_summary ();
}
string
string filt = Filter::ffmpeg_string (_filters);
- return Content::technical_summary() + " - "
- + video->technical_summary() + " - "
- + audio->technical_summary() + " - "
- + String::compose (
- "ffmpeg: audio %1 subtitle %2 filters %3", as, ss, filt
- );
+ string s = Content::technical_summary ();
+
+ if (video) {
+ s += " - " + video->technical_summary ();
+ }
+
+ if (audio) {
+ s += " - " + audio->technical_summary ();
+ }
+
+ return s + String::compose (
+ "ffmpeg: audio %1 subtitle %2 filters %3", as, ss, filt
+ );
}
void
FFmpegContent::full_length () const
{
FrameRateChange const frc (active_video_frame_rate (), film()->video_frame_rate ());
- return DCPTime::from_frames (llrint (video->length_after_3d_combine() * frc.factor()), film()->video_frame_rate());
+ if (video) {
+ return DCPTime::from_frames (llrint (video->length_after_3d_combine() * frc.factor()), film()->video_frame_rate());
+ }
+
+ DCPOMATIC_ASSERT (audio);
+
+ DCPTime longest;
+ BOOST_FOREACH (AudioStreamPtr i, audio->streams ()) {
+ longest = max (longest, DCPTime::from_frames (llrint (i->length() / frc.speed_up), i->frame_rate()));
+ }
+
+ return longest;
}
void
string
FFmpegContent::identifier () const
{
- SafeStringStream s;
-
- s << Content::identifier() << "_"
- << video->identifier() << "_"
- << subtitle->identifier();
+ string s = Content::identifier();
- boost::mutex::scoped_lock lm (_mutex);
-
- if (_subtitle_stream) {
- s << "_" << _subtitle_stream->identifier ();
+ if (video) {
+ s += "_" + video->identifier();
}
- for (vector<Filter const *>::const_iterator i = _filters.begin(); i != _filters.end(); ++i) {
- s << "_" << (*i)->id ();
+ if (subtitle) {
+ s += "_" + subtitle->identifier();
}
- return s.str ();
-}
+ boost::mutex::scoped_lock lm (_mutex);
-list<ContentTimePeriod>
-FFmpegContent::image_subtitles_during (ContentTimePeriod period, bool starting) const
-{
- shared_ptr<FFmpegSubtitleStream> stream = subtitle_stream ();
- if (!stream) {
- return list<ContentTimePeriod> ();
+ if (_subtitle_stream) {
+ s += "_" + _subtitle_stream->identifier ();
}
- return stream->image_subtitles_during (period, starting);
-}
-
-list<ContentTimePeriod>
-FFmpegContent::text_subtitles_during (ContentTimePeriod period, bool starting) const
-{
- shared_ptr<FFmpegSubtitleStream> stream = subtitle_stream ();
- if (!stream) {
- return list<ContentTimePeriod> ();
+ for (vector<Filter const *>::const_iterator i = _filters.begin(); i != _filters.end(); ++i) {
+ s += "_" + (*i)->id ();
}
- return stream->text_subtitles_during (period, starting);
+ return s;
}
void
FFmpegContent::set_default_colour_conversion ()
{
+ DCPOMATIC_ASSERT (video);
+
dcp::Size const s = video->size ();
boost::mutex::scoped_lock lm (_mutex);
- if (s.width < 1080) {
- video->set_colour_conversion (PresetColourConversion::from_id ("rec601").conversion);
- } else {
+ switch (_colorspace) {
+ case AVCOL_SPC_RGB:
+ video->set_colour_conversion (PresetColourConversion::from_id ("srgb").conversion);
+ break;
+ case AVCOL_SPC_BT709:
video->set_colour_conversion (PresetColourConversion::from_id ("rec709").conversion);
+ break;
+ case AVCOL_SPC_BT470BG:
+ case AVCOL_SPC_SMPTE170M:
+ case AVCOL_SPC_SMPTE240M:
+ video->set_colour_conversion (PresetColourConversion::from_id ("rec601").conversion);
+ break;
+ case AVCOL_SPC_BT2020_CL:
+ case AVCOL_SPC_BT2020_NCL:
+ video->set_colour_conversion (PresetColourConversion::from_id ("rec2020").conversion);
+ break;
+ default:
+ if (s.width < 1080) {
+ video->set_colour_conversion (PresetColourConversion::from_id ("rec601").conversion);
+ } else {
+ video->set_colour_conversion (PresetColourConversion::from_id ("rec709").conversion);
+ }
+ break;
}
}
FFmpegContent::add_properties (list<UserProperty>& p) const
{
Content::add_properties (p);
- video->add_properties (p);
- audio->add_properties (p);
- if (_bits_per_pixel) {
- int const sub = 219 * pow (2, _bits_per_pixel.get() - 8);
- int const total = pow (2, _bits_per_pixel.get());
-
- switch (_color_range) {
- case AVCOL_RANGE_UNSPECIFIED:
- /// TRANSLATORS: this means that the range of pixel values used in this
- /// file is unknown (not specified in the file).
- p.push_back (UserProperty (_("Video"), _("Colour range"), _("Unspecified")));
- break;
- case AVCOL_RANGE_MPEG:
- /// TRANSLATORS: this means that the range of pixel values used in this
- /// file is limited, so that not all possible values are valid.
- p.push_back (
- UserProperty (
- _("Video"), _("Colour range"), String::compose (_("Limited (%1-%2)"), (total - sub) / 2, (total + sub) / 2)
- )
- );
- break;
- case AVCOL_RANGE_JPEG:
- /// TRANSLATORS: this means that the range of pixel values used in this
- /// file is full, so that all possible pixel values are valid.
- p.push_back (UserProperty (_("Video"), _("Colour range"), String::compose (_("Full (0-%1)"), total)));
- break;
- default:
- DCPOMATIC_ASSERT (false);
+ if (video) {
+ video->add_properties (p);
+
+ if (_bits_per_pixel) {
+ int const sub = 219 * pow (2, _bits_per_pixel.get() - 8);
+ int const total = pow (2, _bits_per_pixel.get());
+
+ switch (_color_range) {
+ case AVCOL_RANGE_UNSPECIFIED:
+ /// TRANSLATORS: this means that the range of pixel values used in this
+ /// file is unknown (not specified in the file).
+ p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Unspecified")));
+ break;
+ case AVCOL_RANGE_MPEG:
+ /// TRANSLATORS: this means that the range of pixel values used in this
+ /// file is limited, so that not all possible values are valid.
+ p.push_back (
+ UserProperty (
+ UserProperty::VIDEO, _("Colour range"), String::compose (_("Limited (%1-%2)"), (total - sub) / 2, (total + sub) / 2)
+ )
+ );
+ break;
+ case AVCOL_RANGE_JPEG:
+ /// TRANSLATORS: this means that the range of pixel values used in this
+ /// file is full, so that all possible pixel values are valid.
+ p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), String::compose (_("Full (0-%1)"), total)));
+ break;
+ default:
+ DCPOMATIC_ASSERT (false);
+ }
+ } else {
+ switch (_color_range) {
+ case AVCOL_RANGE_UNSPECIFIED:
+ /// TRANSLATORS: this means that the range of pixel values used in this
+ /// file is unknown (not specified in the file).
+ p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Unspecified")));
+ break;
+ case AVCOL_RANGE_MPEG:
+ /// TRANSLATORS: this means that the range of pixel values used in this
+ /// file is limited, so that not all possible values are valid.
+ p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Limited")));
+ break;
+ case AVCOL_RANGE_JPEG:
+ /// TRANSLATORS: this means that the range of pixel values used in this
+ /// file is full, so that all possible pixel values are valid.
+ p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Full")));
+ break;
+ default:
+ DCPOMATIC_ASSERT (false);
+ }
}
- } else {
- switch (_color_range) {
- case AVCOL_RANGE_UNSPECIFIED:
- /// TRANSLATORS: this means that the range of pixel values used in this
- /// file is unknown (not specified in the file).
- p.push_back (UserProperty (_("Video"), _("Colour range"), _("Unspecified")));
- break;
- case AVCOL_RANGE_MPEG:
- /// TRANSLATORS: this means that the range of pixel values used in this
- /// file is limited, so that not all possible values are valid.
- p.push_back (UserProperty (_("Video"), _("Colour range"), _("Limited")));
- break;
- case AVCOL_RANGE_JPEG:
- /// TRANSLATORS: this means that the range of pixel values used in this
- /// file is full, so that all possible pixel values are valid.
- p.push_back (UserProperty (_("Video"), _("Colour range"), _("Full")));
- break;
- default:
- DCPOMATIC_ASSERT (false);
+
+ char const * primaries[] = {
+ _("Unspecified"),
+ _("BT709"),
+ _("Unspecified"),
+ _("Unspecified"),
+ _("BT470M"),
+ _("BT470BG"),
+ _("SMPTE 170M (BT601)"),
+ _("SMPTE 240M"),
+ _("Film"),
+ _("BT2020"),
+ _("SMPTE ST 428-1 (CIE 1931 XYZ)"),
+ _("SMPTE ST 431-2 (2011)"),
+ _("SMPTE ST 432-1 D65 (2010)")
+ };
+
+ DCPOMATIC_ASSERT (AVCOL_PRI_NB <= 13);
+ p.push_back (UserProperty (UserProperty::VIDEO, _("Colour primaries"), primaries[_color_primaries]));
+
+ char const * transfers[] = {
+ _("Unspecified"),
+ _("BT709"),
+ _("Unspecified"),
+ _("Unspecified"),
+ _("Gamma 22 (BT470M)"),
+ _("Gamma 28 (BT470BG)"),
+ _("SMPTE 170M (BT601)"),
+ _("SMPTE 240M"),
+ _("Linear"),
+ _("Logarithmic (100:1 range)"),
+ _("Logarithmic (316:1 range)"),
+ _("IEC61966-2-4"),
+ _("BT1361 extended colour gamut"),
+ _("IEC61966-2-1 (sRGB or sYCC)"),
+ _("BT2020 for a 10-bit system"),
+ _("BT2020 for a 12-bit system"),
+ _("SMPTE ST 2084 for 10, 12, 14 and 16 bit systems"),
+ _("SMPTE ST 428-1"),
+ _("ARIB STD-B67 ('Hybrid log-gamma')")
+ };
+
+ DCPOMATIC_ASSERT (AVCOL_TRC_NB <= 19);
+ p.push_back (UserProperty (UserProperty::VIDEO, _("Colour transfer characteristic"), transfers[_color_trc]));
+
+ char const * spaces[] = {
+ _("RGB / sRGB (IEC61966-2-1)"),
+ _("BT709"),
+ _("Unspecified"),
+ _("Unspecified"),
+ _("FCC"),
+ _("BT470BG (BT601-6)"),
+ _("SMPTE 170M (BT601-6)"),
+ _("SMPTE 240M"),
+ _("YCOCG"),
+ _("BT2020 non-constant luminance"),
+ _("BT2020 constant luminance"),
+ _("SMPTE 2085, Y'D'zD'x"),
+ };
+
+ DCPOMATIC_ASSERT (AVCOL_SPC_NB == 12);
+ p.push_back (UserProperty (UserProperty::VIDEO, _("Colourspace"), spaces[_colorspace]));
+
+ if (_bits_per_pixel) {
+ p.push_back (UserProperty (UserProperty::VIDEO, _("Bits per pixel"), _bits_per_pixel.get ()));
}
}
- char const * primaries[] = {
- _("Unspecified"),
- _("BT709"),
- _("Unspecified"),
- _("Unspecified"),
- _("BT470M"),
- _("BT470BG"),
- _("SMPTE 170M (BT601)"),
- _("SMPTE 240M"),
- _("Film"),
- _("BT2020"),
- _("SMPTE ST 428-1 (CIE 1931 XYZ)")
- };
-
- DCPOMATIC_ASSERT (AVCOL_PRI_NB == 11);
- p.push_back (UserProperty (_("Video"), _("Colour primaries"), primaries[_color_primaries]));
-
- char const * transfers[] = {
- _("Unspecified"),
- _("BT709"),
- _("Unspecified"),
- _("Unspecified"),
- _("Gamma 22 (BT470M)"),
- _("Gamma 28 (BT470BG)"),
- _("SMPTE 170M (BT601)"),
- _("SMPTE 240M"),
- _("Linear"),
- _("Logarithmic (100:1 range)"),
- _("Logarithmic (316:1 range)"),
- _("IEC61966-2-4"),
- _("BT1361 extended colour gamut"),
- _("IEC61966-2-1 (sRGB or sYCC)"),
- _("BT2020 for a 10-bit system"),
- _("BT2020 for a 12-bit system"),
- _("SMPTE ST 2084 for 10, 12, 14 and 16 bit systems"),
- _("SMPTE ST 428-1")
- };
-
- DCPOMATIC_ASSERT (AVCOL_TRC_NB == 18);
- p.push_back (UserProperty (_("Video"), _("Colour transfer characteristic"), transfers[_color_trc]));
-
- char const * spaces[] = {
- _("RGB / sRGB (IEC61966-2-1)"),
- _("BT709"),
- _("Unspecified"),
- _("Unspecified"),
- _("FCC"),
- _("BT470BG (BT601-6)"),
- _("SMPTE 170M (BT601-6)"),
- _("SMPTE 240M"),
- _("YCOCG"),
- _("BT2020 non-constant luminance"),
- _("BT2020 constant luminance"),
- };
-
- DCPOMATIC_ASSERT (AVCOL_SPC_NB == 11);
- p.push_back (UserProperty (_("Video"), _("Colourspace"), spaces[_colorspace]));
-
- if (_bits_per_pixel) {
- p.push_back (UserProperty (_("Video"), _("Bits per pixel"), raw_convert<string> (_bits_per_pixel.get ())));
+ if (audio) {
+ audio->add_properties (p);
}
}
FFmpegContent::ffmpeg_audio_streams () const
{
vector<shared_ptr<FFmpegAudioStream> > fa;
- BOOST_FOREACH (AudioStreamPtr i, audio->streams()) {
- fa.push_back (dynamic_pointer_cast<FFmpegAudioStream> (i));
+
+ if (audio) {
+ BOOST_FOREACH (AudioStreamPtr i, audio->streams()) {
+ fa.push_back (dynamic_pointer_cast<FFmpegAudioStream> (i));
+ }
}
+
return fa;
}
+
+void
+FFmpegContent::use_template (shared_ptr<const Content> c)
+{
+ Content::use_template (c);
+
+ shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (c);
+ _filters = fc->_filters;
+}