2 Copyright (C) 2013-2016 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 #include "ffmpeg_content.h"
22 #include "video_content.h"
23 #include "audio_content.h"
24 #include "ffmpeg_examiner.h"
25 #include "ffmpeg_subtitle_stream.h"
26 #include "ffmpeg_audio_stream.h"
27 #include "compose.hpp"
33 #include "exceptions.h"
34 #include "frame_rate_change.h"
35 #include "text_content.h"
36 #include <dcp/raw_convert.h>
37 #include <libcxml/cxml.h>
39 #include <libavformat/avformat.h>
40 #include <libavutil/pixdesc.h>
42 #include <libxml++/libxml++.h>
43 #include <boost/foreach.hpp>
55 using boost::shared_ptr;
56 using boost::dynamic_pointer_cast;
57 using boost::optional;
58 using dcp::raw_convert;
60 int const FFmpegContentProperty::SUBTITLE_STREAMS = 100;
61 int const FFmpegContentProperty::SUBTITLE_STREAM = 101;
62 int const FFmpegContentProperty::FILTERS = 102;
64 FFmpegContent::FFmpegContent (boost::filesystem::path p)
73 get_optional_enum (cxml::ConstNodePtr node, string name)
75 optional<int> const v = node->optional_number_child<int>(name);
79 return static_cast<T>(*v);
82 FFmpegContent::FFmpegContent (cxml::ConstNodePtr node, int version, list<string>& notes)
85 video = VideoContent::from_xml (this, node, version);
86 audio = AudioContent::from_xml (this, node, version);
87 text = TextContent::from_xml (this, node, version);
89 list<cxml::NodePtr> c = node->node_children ("SubtitleStream");
90 for (list<cxml::NodePtr>::const_iterator i = c.begin(); i != c.end(); ++i) {
91 _subtitle_streams.push_back (shared_ptr<FFmpegSubtitleStream> (new FFmpegSubtitleStream (*i, version)));
92 if ((*i)->optional_number_child<int> ("Selected")) {
93 _subtitle_stream = _subtitle_streams.back ();
97 c = node->node_children ("AudioStream");
98 for (list<cxml::NodePtr>::const_iterator i = c.begin(); i != c.end(); ++i) {
99 shared_ptr<FFmpegAudioStream> as (new FFmpegAudioStream (*i, version));
100 audio->add_stream (as);
101 if (version < 11 && !(*i)->optional_node_child ("Selected")) {
102 /* This is an old file and this stream is not selected, so un-map it */
103 as->set_mapping (AudioMapping (as->channels (), MAX_DCP_AUDIO_CHANNELS));
107 c = node->node_children ("Filter");
108 for (list<cxml::NodePtr>::iterator i = c.begin(); i != c.end(); ++i) {
109 Filter const * f = Filter::from_id ((*i)->content ());
111 _filters.push_back (f);
113 notes.push_back (String::compose (_("DCP-o-matic no longer supports the `%1' filter, so it has been turned off."), (*i)->content()));
117 optional<ContentTime::Type> const f = node->optional_number_child<ContentTime::Type> ("FirstVideo");
119 _first_video = ContentTime (f.get ());
122 _color_range = get_optional_enum<AVColorRange>(node, "ColorRange");
123 _color_primaries = get_optional_enum<AVColorPrimaries>(node, "ColorPrimaries");
124 _color_trc = get_optional_enum<AVColorTransferCharacteristic>(node, "ColorTransferCharacteristic");
125 _colorspace = get_optional_enum<AVColorSpace>(node, "Colorspace");
126 _bits_per_pixel = node->optional_number_child<int> ("BitsPerPixel");
127 _decryption_key = node->optional_string_child ("DecryptionKey");
128 _encrypted = node->optional_bool_child("Encrypted").get_value_or(false);
131 FFmpegContent::FFmpegContent (vector<shared_ptr<Content> > c)
134 vector<shared_ptr<Content> >::const_iterator i = c.begin ();
136 bool need_video = false;
137 bool need_audio = false;
138 bool need_text = false;
141 need_video = static_cast<bool> ((*i)->video);
142 need_audio = static_cast<bool> ((*i)->audio);
143 need_text = !(*i)->text.empty();
146 while (i != c.end ()) {
147 if (need_video != static_cast<bool> ((*i)->video)) {
148 throw JoinError (_("Content to be joined must all have or not have video"));
150 if (need_audio != static_cast<bool> ((*i)->audio)) {
151 throw JoinError (_("Content to be joined must all have or not have audio"));
153 if (need_text != !(*i)->text.empty()) {
154 throw JoinError (_("Content to be joined must all have or not have subtitles or captions"));
160 video.reset (new VideoContent (this, c));
163 audio.reset (new AudioContent (this, c));
166 text.push_back (shared_ptr<TextContent> (new TextContent (this, c)));
169 shared_ptr<FFmpegContent> ref = dynamic_pointer_cast<FFmpegContent> (c[0]);
170 DCPOMATIC_ASSERT (ref);
172 for (size_t i = 0; i < c.size(); ++i) {
173 shared_ptr<FFmpegContent> fc = dynamic_pointer_cast<FFmpegContent> (c[i]);
174 if (fc->only_text() && fc->only_text()->use() && *(fc->_subtitle_stream.get()) != *(ref->_subtitle_stream.get())) {
175 throw JoinError (_("Content to be joined must use the same subtitle stream."));
179 /* XXX: should probably check that more of the stuff below is the same in *this and ref */
181 _subtitle_streams = ref->subtitle_streams ();
182 _subtitle_stream = ref->subtitle_stream ();
183 _first_video = ref->_first_video;
184 _filters = ref->_filters;
185 _color_range = ref->_color_range;
186 _color_primaries = ref->_color_primaries;
187 _color_trc = ref->_color_trc;
188 _colorspace = ref->_colorspace;
189 _bits_per_pixel = ref->_bits_per_pixel;
190 _encrypted = ref->_encrypted;
194 FFmpegContent::as_xml (xmlpp::Node* node, bool with_paths) const
196 node->add_child("Type")->add_child_text ("FFmpeg");
197 Content::as_xml (node, with_paths);
200 video->as_xml (node);
204 audio->as_xml (node);
206 BOOST_FOREACH (AudioStreamPtr i, audio->streams ()) {
207 shared_ptr<FFmpegAudioStream> f = dynamic_pointer_cast<FFmpegAudioStream> (i);
208 DCPOMATIC_ASSERT (f);
209 f->as_xml (node->add_child("AudioStream"));
214 only_text()->as_xml (node);
217 boost::mutex::scoped_lock lm (_mutex);
219 for (vector<shared_ptr<FFmpegSubtitleStream> >::const_iterator i = _subtitle_streams.begin(); i != _subtitle_streams.end(); ++i) {
220 xmlpp::Node* t = node->add_child("SubtitleStream");
221 if (_subtitle_stream && *i == _subtitle_stream) {
222 t->add_child("Selected")->add_child_text("1");
227 for (vector<Filter const *>::const_iterator i = _filters.begin(); i != _filters.end(); ++i) {
228 node->add_child("Filter")->add_child_text ((*i)->id ());
232 node->add_child("FirstVideo")->add_child_text (raw_convert<string> (_first_video.get().get()));
236 node->add_child("ColorRange")->add_child_text (raw_convert<string> (static_cast<int> (*_color_range)));
238 if (_color_primaries) {
239 node->add_child("ColorPrimaries")->add_child_text (raw_convert<string> (static_cast<int> (*_color_primaries)));
242 node->add_child("ColorTransferCharacteristic")->add_child_text (raw_convert<string> (static_cast<int> (*_color_trc)));
245 node->add_child("Colorspace")->add_child_text (raw_convert<string> (static_cast<int> (*_colorspace)));
247 if (_bits_per_pixel) {
248 node->add_child("BitsPerPixel")->add_child_text (raw_convert<string> (*_bits_per_pixel));
250 if (_decryption_key) {
251 node->add_child("DecryptionKey")->add_child_text (_decryption_key.get());
254 node->add_child("Encypted")->add_child_text ("1");
259 FFmpegContent::examine (shared_ptr<const Film> film, shared_ptr<Job> job)
261 ChangeSignaller<Content> cc1 (this, FFmpegContentProperty::SUBTITLE_STREAMS);
262 ChangeSignaller<Content> cc2 (this, FFmpegContentProperty::SUBTITLE_STREAM);
264 job->set_progress_unknown ();
266 Content::examine (film, job);
268 shared_ptr<FFmpegExaminer> examiner (new FFmpegExaminer (shared_from_this (), job));
270 if (examiner->has_video ()) {
271 video.reset (new VideoContent (this));
272 video->take_from_examiner (examiner);
275 boost::filesystem::path first_path = path (0);
278 boost::mutex::scoped_lock lm (_mutex);
280 if (examiner->has_video ()) {
281 _first_video = examiner->first_video ();
282 _color_range = examiner->color_range ();
283 _color_primaries = examiner->color_primaries ();
284 _color_trc = examiner->color_trc ();
285 _colorspace = examiner->colorspace ();
286 _bits_per_pixel = examiner->bits_per_pixel ();
288 if (examiner->rotation()) {
289 double rot = *examiner->rotation ();
290 if (fabs (rot - 180) < 1.0) {
291 _filters.push_back (Filter::from_id ("vflip"));
292 _filters.push_back (Filter::from_id ("hflip"));
293 } else if (fabs (rot - 90) < 1.0) {
294 _filters.push_back (Filter::from_id ("90clock"));
295 } else if (fabs (rot - 270) < 1.0) {
296 _filters.push_back (Filter::from_id ("90anticlock"));
301 if (!examiner->audio_streams().empty ()) {
302 audio.reset (new AudioContent (this));
304 BOOST_FOREACH (shared_ptr<FFmpegAudioStream> i, examiner->audio_streams ()) {
305 audio->add_stream (i);
308 AudioStreamPtr as = audio->streams().front();
309 AudioMapping m = as->mapping ();
310 m.make_default (film ? film->audio_processor() : 0, first_path);
314 _subtitle_streams = examiner->subtitle_streams ();
315 if (!_subtitle_streams.empty ()) {
317 text.push_back (shared_ptr<TextContent> (new TextContent (this, TEXT_OPEN_SUBTITLE, TEXT_UNKNOWN)));
318 _subtitle_stream = _subtitle_streams.front ();
321 _encrypted = first_path.extension() == ".ecinema";
324 if (examiner->has_video ()) {
325 set_default_colour_conversion ();
330 FFmpegContent::summary () const
332 if (video && audio) {
333 return String::compose (_("%1 [movie]"), path_summary ());
335 return String::compose (_("%1 [video]"), path_summary ());
337 return String::compose (_("%1 [audio]"), path_summary ());
340 return path_summary ();
344 FFmpegContent::technical_summary () const
347 BOOST_FOREACH (shared_ptr<FFmpegAudioStream> i, ffmpeg_audio_streams ()) {
348 as += i->technical_summary () + " " ;
356 if (_subtitle_stream) {
357 ss = _subtitle_stream->technical_summary ();
360 string filt = Filter::ffmpeg_string (_filters);
362 string s = Content::technical_summary ();
365 s += " - " + video->technical_summary ();
369 s += " - " + audio->technical_summary ();
372 return s + String::compose (
373 "ffmpeg: audio %1 subtitle %2 filters %3", as, ss, filt
378 FFmpegContent::set_subtitle_stream (shared_ptr<FFmpegSubtitleStream> s)
380 ChangeSignaller<Content> cc (this, FFmpegContentProperty::SUBTITLE_STREAM);
383 boost::mutex::scoped_lock lm (_mutex);
384 _subtitle_stream = s;
389 operator== (FFmpegStream const & a, FFmpegStream const & b)
391 return a._id == b._id;
395 operator!= (FFmpegStream const & a, FFmpegStream const & b)
397 return a._id != b._id;
401 FFmpegContent::full_length (shared_ptr<const Film> film) const
403 FrameRateChange const frc (film, shared_from_this());
405 return DCPTime::from_frames (llrint (video->length_after_3d_combine() * frc.factor()), film->video_frame_rate());
410 BOOST_FOREACH (AudioStreamPtr i, audio->streams()) {
411 longest = max (longest, DCPTime::from_frames(llrint(i->length() / frc.speed_up), i->frame_rate()));
416 /* XXX: subtitle content? */
422 FFmpegContent::approximate_length () const
425 return DCPTime::from_frames (video->length_after_3d_combine(), 24);
428 DCPOMATIC_ASSERT (audio);
431 BOOST_FOREACH (AudioStreamPtr i, audio->streams ()) {
432 longest = max (longest, Frame(llrint(i->length())));
435 return DCPTime::from_frames (longest, 24);
439 FFmpegContent::set_filters (vector<Filter const *> const & filters)
441 ChangeSignaller<Content> cc (this, FFmpegContentProperty::FILTERS);
444 boost::mutex::scoped_lock lm (_mutex);
450 FFmpegContent::identifier () const
452 string s = Content::identifier();
455 s += "_" + video->identifier();
458 if (only_text() && only_text()->use() && only_text()->burn()) {
459 s += "_" + only_text()->identifier();
462 boost::mutex::scoped_lock lm (_mutex);
464 if (_subtitle_stream) {
465 s += "_" + _subtitle_stream->identifier ();
468 for (vector<Filter const *>::const_iterator i = _filters.begin(); i != _filters.end(); ++i) {
469 s += "_" + (*i)->id ();
476 FFmpegContent::set_default_colour_conversion ()
478 DCPOMATIC_ASSERT (video);
480 dcp::Size const s = video->size ();
482 boost::mutex::scoped_lock lm (_mutex);
484 switch (_colorspace.get_value_or(AVCOL_SPC_UNSPECIFIED)) {
486 video->set_colour_conversion (PresetColourConversion::from_id ("srgb").conversion);
488 case AVCOL_SPC_BT709:
489 video->set_colour_conversion (PresetColourConversion::from_id ("rec709").conversion);
491 case AVCOL_SPC_BT470BG:
492 case AVCOL_SPC_SMPTE170M:
493 case AVCOL_SPC_SMPTE240M:
494 video->set_colour_conversion (PresetColourConversion::from_id ("rec601").conversion);
496 case AVCOL_SPC_BT2020_CL:
497 case AVCOL_SPC_BT2020_NCL:
498 video->set_colour_conversion (PresetColourConversion::from_id ("rec2020").conversion);
501 if (s.width < 1080) {
502 video->set_colour_conversion (PresetColourConversion::from_id ("rec601").conversion);
504 video->set_colour_conversion (PresetColourConversion::from_id ("rec709").conversion);
511 FFmpegContent::add_properties (shared_ptr<const Film> film, list<UserProperty>& p) const
513 Content::add_properties (film, p);
516 video->add_properties (p);
518 if (_bits_per_pixel) {
519 int const sub = 219 * pow (2, _bits_per_pixel.get() - 8);
520 int const total = pow (2, _bits_per_pixel.get());
522 switch (_color_range.get_value_or(AVCOL_RANGE_UNSPECIFIED)) {
523 case AVCOL_RANGE_UNSPECIFIED:
524 /// TRANSLATORS: this means that the range of pixel values used in this
525 /// file is unknown (not specified in the file).
526 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Unspecified")));
528 case AVCOL_RANGE_MPEG:
529 /// TRANSLATORS: this means that the range of pixel values used in this
530 /// file is limited, so that not all possible values are valid.
533 UserProperty::VIDEO, _("Colour range"), String::compose (_("Limited (%1-%2)"), (total - sub) / 2, (total + sub) / 2)
537 case AVCOL_RANGE_JPEG:
538 /// TRANSLATORS: this means that the range of pixel values used in this
539 /// file is full, so that all possible pixel values are valid.
540 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), String::compose (_("Full (0-%1)"), total)));
543 DCPOMATIC_ASSERT (false);
546 switch (_color_range.get_value_or(AVCOL_RANGE_UNSPECIFIED)) {
547 case AVCOL_RANGE_UNSPECIFIED:
548 /// TRANSLATORS: this means that the range of pixel values used in this
549 /// file is unknown (not specified in the file).
550 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Unspecified")));
552 case AVCOL_RANGE_MPEG:
553 /// TRANSLATORS: this means that the range of pixel values used in this
554 /// file is limited, so that not all possible values are valid.
555 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Limited")));
557 case AVCOL_RANGE_JPEG:
558 /// TRANSLATORS: this means that the range of pixel values used in this
559 /// file is full, so that all possible pixel values are valid.
560 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour range"), _("Full")));
563 DCPOMATIC_ASSERT (false);
567 char const * primaries[] = {
574 _("SMPTE 170M (BT601)"),
578 _("SMPTE ST 428-1 (CIE 1931 XYZ)"),
579 _("SMPTE ST 431-2 (2011)"),
580 _("SMPTE ST 432-1 D65 (2010)"), // 12
593 DCPOMATIC_ASSERT (AVCOL_PRI_NB <= 23);
594 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour primaries"), primaries[_color_primaries.get_value_or(AVCOL_PRI_UNSPECIFIED)]));
596 char const * transfers[] = {
601 _("Gamma 22 (BT470M)"),
602 _("Gamma 28 (BT470BG)"),
603 _("SMPTE 170M (BT601)"),
606 _("Logarithmic (100:1 range)"),
607 _("Logarithmic (316:1 range)"),
609 _("BT1361 extended colour gamut"),
610 _("IEC61966-2-1 (sRGB or sYCC)"),
611 _("BT2020 for a 10-bit system"),
612 _("BT2020 for a 12-bit system"),
613 _("SMPTE ST 2084 for 10, 12, 14 and 16 bit systems"),
615 _("ARIB STD-B67 ('Hybrid log-gamma')")
618 DCPOMATIC_ASSERT (AVCOL_TRC_NB <= 19);
619 p.push_back (UserProperty (UserProperty::VIDEO, _("Colour transfer characteristic"), transfers[_color_trc.get_value_or(AVCOL_TRC_UNSPECIFIED)]));
621 char const * spaces[] = {
622 _("RGB / sRGB (IEC61966-2-1)"),
627 _("BT470BG (BT601-6)"),
628 _("SMPTE 170M (BT601-6)"),
631 _("BT2020 non-constant luminance"),
632 _("BT2020 constant luminance"),
633 _("SMPTE 2085, Y'D'zD'x"),
634 _("Chroma-derived non-constant luminance"),
635 _("Chroma-derived constant luminance"),
639 DCPOMATIC_ASSERT (AVCOL_SPC_NB == 15);
640 p.push_back (UserProperty (UserProperty::VIDEO, _("Colourspace"), spaces[_colorspace.get_value_or(AVCOL_SPC_UNSPECIFIED)]));
642 if (_bits_per_pixel) {
643 p.push_back (UserProperty (UserProperty::VIDEO, _("Bits per pixel"), *_bits_per_pixel));
648 audio->add_properties (film, p);
652 /** Our subtitle streams have colour maps, which can be changed, but
653 * they have no way of signalling that change. As a hack, we have this
654 * method which callers can use when they've modified one of our subtitle
658 FFmpegContent::signal_subtitle_stream_changed ()
660 /* XXX: this is too late; really it should be before the change */
661 ChangeSignaller<Content> cc (this, FFmpegContentProperty::SUBTITLE_STREAM);
664 vector<shared_ptr<FFmpegAudioStream> >
665 FFmpegContent::ffmpeg_audio_streams () const
667 vector<shared_ptr<FFmpegAudioStream> > fa;
670 BOOST_FOREACH (AudioStreamPtr i, audio->streams()) {
671 fa.push_back (dynamic_pointer_cast<FFmpegAudioStream> (i));
679 FFmpegContent::take_settings_from (shared_ptr<const Content> c)
681 shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (c);
686 Content::take_settings_from (c);
687 _filters = fc->_filters;