X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fdcp_decoder.cc;h=35fe375e9b97c925c02d25c9d240e152b1712b53;hb=0cb31de2be2b51a8bc19e55ceb1b86dc26ea1c42;hp=f032ee661781914759afa73baea10c0fbc3e2496;hpb=334b94526f2c1271718a94fe97cfa843cf6ef7a1;p=dcpomatic.git diff --git a/src/lib/dcp_decoder.cc b/src/lib/dcp_decoder.cc index f032ee661..35fe375e9 100644 --- a/src/lib/dcp_decoder.cc +++ b/src/lib/dcp_decoder.cc @@ -1,25 +1,30 @@ /* - Copyright (C) 2014-2015 Carl Hetherington + Copyright (C) 2014-2016 Carl Hetherington - 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 . */ #include "dcp_decoder.h" #include "dcp_content.h" +#include "audio_content.h" +#include "video_decoder.h" +#include "audio_decoder.h" #include "j2k_image_proxy.h" +#include "subtitle_decoder.h" #include "image.h" #include "config.h" #include @@ -27,13 +32,16 @@ #include #include #include +#include #include +#include #include #include #include #include #include #include +#include #include #include @@ -42,12 +50,22 @@ using std::cout; using boost::shared_ptr; using boost::dynamic_pointer_cast; -DCPDecoder::DCPDecoder (shared_ptr c, shared_ptr log, bool fast) - : VideoDecoder (c->video, log) - , AudioDecoder (c, fast) - , SubtitleDecoder (c->subtitle) - , _dcp_content (c) +DCPDecoder::DCPDecoder (shared_ptr c, shared_ptr log) + : _dcp_content (c) + , _decode_referenced (false) { + video.reset (new VideoDecoder (this, c, log)); + audio.reset (new AudioDecoder (this, c->audio, log)); + + subtitle.reset ( + new SubtitleDecoder ( + this, + c->subtitle, + bind (&DCPDecoder::image_subtitles_during, this, _1, _2), + bind (&DCPDecoder::text_subtitles_during, this, _1, _2) + ) + ); + dcp::DCP dcp (c->directory ()); dcp.read (false, 0, true); if (c->kdm ()) { @@ -55,7 +73,10 @@ DCPDecoder::DCPDecoder (shared_ptr c, shared_ptr log, boo } DCPOMATIC_ASSERT (dcp.cpls().size() == 1); _reels = dcp.cpls().front()->reels (); + _reel = _reels.begin (); + _offset = 0; + get_readers (); } bool @@ -65,58 +86,49 @@ DCPDecoder::pass (PassReason reason, bool) return true; } - /* Offset of the start of the current reel from the start of the content in frames */ - int offset = 0; - list >::const_iterator i = _reels.begin(); - while (i != _reel) { - offset += (*i)->main_picture()->duration (); - ++i; - } - - double const vfr = _dcp_content->video->video_frame_rate (); + double const vfr = _dcp_content->active_video_frame_rate (); /* Frame within the (played part of the) reel that is coming up next */ int64_t const frame = _next.frames_round (vfr); - if ((*_reel)->main_picture () && reason != PASS_REASON_SUBTITLE) { + if ((_mono_reader || _stereo_reader) && reason != PASS_REASON_SUBTITLE && (_decode_referenced || !_dcp_content->reference_video())) { shared_ptr asset = (*_reel)->main_picture()->asset (); - shared_ptr mono = dynamic_pointer_cast (asset); - shared_ptr stereo = dynamic_pointer_cast (asset); int64_t const entry_point = (*_reel)->main_picture()->entry_point (); - if (mono) { - video (shared_ptr (new J2KImageProxy (mono->get_frame (entry_point + frame), asset->size())), offset + frame); + if (_mono_reader) { + video->give (shared_ptr (new J2KImageProxy (_mono_reader->get_frame (entry_point + frame), asset->size())), _offset + frame); } else { - video ( - shared_ptr (new J2KImageProxy (stereo->get_frame (entry_point + frame), asset->size(), dcp::EYE_LEFT)), - offset + frame + video->give ( + shared_ptr (new J2KImageProxy (_stereo_reader->get_frame (entry_point + frame), asset->size(), dcp::EYE_LEFT)), + _offset + frame ); - video ( - shared_ptr (new J2KImageProxy (stereo->get_frame (entry_point + frame), asset->size(), dcp::EYE_RIGHT)), - offset + frame + video->give ( + shared_ptr (new J2KImageProxy (_stereo_reader->get_frame (entry_point + frame), asset->size(), dcp::EYE_RIGHT)), + _offset + frame ); } } - if ((*_reel)->main_sound () && reason != PASS_REASON_SUBTITLE) { + if (_sound_reader && reason != PASS_REASON_SUBTITLE && (_decode_referenced || !_dcp_content->reference_audio())) { int64_t const entry_point = (*_reel)->main_sound()->entry_point (); - shared_ptr sf = (*_reel)->main_sound()->asset()->get_frame (entry_point + frame); + shared_ptr sf = _sound_reader->get_frame (entry_point + frame); uint8_t const * from = sf->data (); - int const channels = _dcp_content->audio_stream()->channels (); + int const channels = _dcp_content->audio->stream()->channels (); int const frames = sf->size() / (3 * channels); shared_ptr data (new AudioBuffers (channels, frames)); + float** data_data = data->data(); for (int i = 0; i < frames; ++i) { for (int j = 0; j < channels; ++j) { - data->data()[j][i] = static_cast ((from[0] << 8) | (from[1] << 16) | (from[2] << 24)) / static_cast (INT_MAX - 256); + data_data[j][i] = static_cast ((from[0] << 8) | (from[1] << 16) | (from[2] << 24)) / static_cast (INT_MAX - 256); from += 3; } } - audio (_dcp_content->audio_stream(), data, ContentTime::from_frames (offset, vfr) + _next); + audio->give (_dcp_content->audio->stream(), data, ContentTime::from_frames (_offset, vfr) + _next); } - if ((*_reel)->main_subtitle ()) { + if ((*_reel)->main_subtitle() && (_decode_referenced || !_dcp_content->reference_subtitle())) { int64_t const entry_point = (*_reel)->main_subtitle()->entry_point (); list subs = (*_reel)->main_subtitle()->asset()->subtitles_during ( dcp::Time (entry_point + frame, vfr, vfr), @@ -126,10 +138,10 @@ DCPDecoder::pass (PassReason reason, bool) if (!subs.empty ()) { /* XXX: assuming that all `subs' are at the same time; maybe this is ok */ - text_subtitle ( + subtitle->give_text ( ContentTimePeriod ( - ContentTime::from_frames (offset - entry_point, vfr) + ContentTime::from_seconds (subs.front().in().as_seconds ()), - ContentTime::from_frames (offset - entry_point, vfr) + ContentTime::from_seconds (subs.front().out().as_seconds ()) + ContentTime::from_frames (_offset - entry_point, vfr) + ContentTime::from_seconds (subs.front().in().as_seconds ()), + ContentTime::from_frames (_offset - entry_point, vfr) + ContentTime::from_seconds (subs.front().out().as_seconds ()) ), subs ); @@ -140,7 +152,7 @@ DCPDecoder::pass (PassReason reason, bool) if ((*_reel)->main_picture ()) { if (_next.frames_round (vfr) >= (*_reel)->main_picture()->duration()) { - ++_reel; + next_reel (); _next = ContentTime (); } } @@ -148,17 +160,60 @@ DCPDecoder::pass (PassReason reason, bool) return false; } +void +DCPDecoder::next_reel () +{ + _offset += (*_reel)->main_picture()->duration(); + ++_reel; + get_readers (); +} + +void +DCPDecoder::get_readers () +{ + if (_reel == _reels.end()) { + _mono_reader.reset (); + _stereo_reader.reset (); + _sound_reader.reset (); + return; + } + + if ((*_reel)->main_picture()) { + shared_ptr asset = (*_reel)->main_picture()->asset (); + shared_ptr mono = dynamic_pointer_cast (asset); + shared_ptr stereo = dynamic_pointer_cast (asset); + DCPOMATIC_ASSERT (mono || stereo); + if (mono) { + _mono_reader = mono->start_read (); + _stereo_reader.reset (); + } else { + _stereo_reader = stereo->start_read (); + _mono_reader.reset (); + } + } else { + _mono_reader.reset (); + _stereo_reader.reset (); + } + + if ((*_reel)->main_sound()) { + _sound_reader = (*_reel)->main_sound()->asset()->start_read (); + } else { + _sound_reader.reset (); + } +} + void DCPDecoder::seek (ContentTime t, bool accurate) { - VideoDecoder::seek (t, accurate); - AudioDecoder::seek (t, accurate); - SubtitleDecoder::seek (t, accurate); + video->seek (t, accurate); + audio->seek (t, accurate); + subtitle->seek (t, accurate); + _offset = 0; _reel = _reels.begin (); - while (_reel != _reels.end() && t >= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->video->video_frame_rate ())) { - t -= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->video->video_frame_rate ()); - ++_reel; + while (_reel != _reels.end() && t >= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->active_video_frame_rate ())) { + t -= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->active_video_frame_rate ()); + next_reel (); } _next = t; @@ -177,7 +232,7 @@ DCPDecoder::text_subtitles_during (ContentTimePeriod period, bool starting) cons /* XXX: inefficient */ list ctp; - double const vfr = _dcp_content->video->video_frame_rate (); + double const vfr = _dcp_content->active_video_frame_rate (); BOOST_FOREACH (shared_ptr r, _reels) { if (!r->main_subtitle ()) { @@ -204,3 +259,9 @@ DCPDecoder::text_subtitles_during (ContentTimePeriod period, bool starting) cons return ctp; } + +void +DCPDecoder::set_decode_referenced () +{ + _decode_referenced = true; +}