X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fdcp_decoder.cc;h=4e595da43f41e744b7ee0f9c1f4d7d4b7ee8795c;hb=422eb00b446d90e3588ae6793f676917ee195cca;hp=14672a23ba03d28a3fa680821f3028b1bca5fc07;hpb=2cf3da72a017eebf741dfb9a5ec158df94a4e7b7;p=dcpomatic.git diff --git a/src/lib/dcp_decoder.cc b/src/lib/dcp_decoder.cc index 14672a23b..4e595da43 100644 --- a/src/lib/dcp_decoder.cc +++ b/src/lib/dcp_decoder.cc @@ -1,119 +1,396 @@ /* - Copyright (C) 2014 Carl Hetherington + Copyright (C) 2014-2018 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 "text_decoder.h" +#include "image.h" +#include "config.h" #include #include #include -#include -#include +#include +#include +#include +#include #include +#include +#include +#include #include #include -#include "dcp_decoder.h" -#include "dcp_content.h" -#include "image_proxy.h" -#include "image.h" +#include +#include +#include +#include +#include + +#include "i18n.h" using std::list; using std::cout; using boost::shared_ptr; using boost::dynamic_pointer_cast; +using boost::optional; -DCPDecoder::DCPDecoder (shared_ptr c, shared_ptr log) - : VideoDecoder (c) - , AudioDecoder (c) - , SubtitleDecoder (c) - , _log (log) - , _dcp_content (c) +DCPDecoder::DCPDecoder (shared_ptr c, shared_ptr log, bool fast) + : DCP (c) + , _decode_referenced (false) { - dcp::DCP dcp (c->directory ()); - dcp.read (); - assert (dcp.cpls().size() == 1); - _reels = dcp.cpls().front()->reels (); + if (c->video) { + video.reset (new VideoDecoder (this, c, log)); + } + if (c->audio) { + audio.reset (new AudioDecoder (this, c->audio, log, fast)); + } + BOOST_FOREACH (shared_ptr i, c->text) { + /* XXX: this time here should be the time of the first subtitle, not 0 */ + text.push_back (shared_ptr (new TextDecoder (this, i, log, ContentTime()))); + } + + list > cpl_list = cpls (); + + if (cpl_list.empty()) { + throw DCPError (_("No CPLs found in DCP.")); + } + + shared_ptr cpl; + BOOST_FOREACH (shared_ptr i, cpl_list) { + if (_dcp_content->cpl() && i->id() == _dcp_content->cpl().get()) { + cpl = i; + } + } + + if (!cpl) { + /* No CPL found; probably an old file that doesn't specify it; + just use the first one. + */ + cpl = cpls().front (); + } + + set_decode_referenced (false); + + _reels = cpl->reels (); + _reel = _reels.begin (); + _offset = 0; + get_readers (); } + bool DCPDecoder::pass () { - if (_reel == _reels.end ()) { + if (_reel == _reels.end () || !_dcp_content->can_be_played ()) { return true; } - float const vfr = _dcp_content->video_frame_rate (); - - if ((*_reel)->main_picture ()) { - shared_ptr mxf = (*_reel)->main_picture()->mxf (); - shared_ptr mono = dynamic_pointer_cast (mxf); - shared_ptr stereo = dynamic_pointer_cast (mxf); - if (mono) { - shared_ptr image (new Image (PIX_FMT_RGB24, mxf->size(), false)); - mono->get_frame (_next.frames (vfr))->rgb_frame (image->data()[0]); - shared_ptr aligned (new Image (image, true)); - video (shared_ptr (new RawImageProxy (aligned, _log)), _next.frames (vfr)); - } else { + 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); + + shared_ptr picture_asset = (*_reel)->main_picture()->asset(); + DCPOMATIC_ASSERT (picture_asset); + + /* We must emit texts first as when we emit the video for this frame + it will expect already to have the texts. + */ + pass_texts (_next, picture_asset->size()); - shared_ptr left (new Image (PIX_FMT_RGB24, mxf->size(), false)); - stereo->get_frame (_next.frames (vfr))->rgb_frame (dcp::EYE_LEFT, left->data()[0]); - shared_ptr aligned_left (new Image (left, true)); - video (shared_ptr (new RawImageProxy (aligned_left, _log)), _next.frames (vfr)); + if ((_mono_reader || _stereo_reader) && (_decode_referenced || !_dcp_content->reference_video())) { + int64_t const entry_point = (*_reel)->main_picture()->entry_point (); + if (_mono_reader) { + video->emit ( + shared_ptr ( + new J2KImageProxy ( + _mono_reader->get_frame (entry_point + frame), + picture_asset->size(), + AV_PIX_FMT_XYZ12LE, + _forced_reduction + ) + ), + _offset + frame + ); + } else { + video->emit ( + shared_ptr ( + new J2KImageProxy ( + _stereo_reader->get_frame (entry_point + frame), + picture_asset->size(), + dcp::EYE_LEFT, + AV_PIX_FMT_XYZ12LE, + _forced_reduction + ) + ), + _offset + frame + ); - shared_ptr right (new Image (PIX_FMT_RGB24, mxf->size(), false)); - stereo->get_frame (_next.frames (vfr))->rgb_frame (dcp::EYE_RIGHT, right->data()[0]); - shared_ptr aligned_right (new Image (right, true)); - video (shared_ptr (new RawImageProxy (aligned_right, _log)), _next.frames (vfr)); + video->emit ( + shared_ptr ( + new J2KImageProxy ( + _stereo_reader->get_frame (entry_point + frame), + picture_asset->size(), + dcp::EYE_RIGHT, + AV_PIX_FMT_XYZ12LE, + _forced_reduction + ) + ), + _offset + frame + ); } } - /* XXX: sound */ - /* XXX: subtitle */ + if (_sound_reader && (_decode_referenced || !_dcp_content->reference_audio())) { + int64_t const entry_point = (*_reel)->main_sound()->entry_point (); + 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 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); + from += 3; + } + } + + audio->emit (_dcp_content->audio->stream(), data, ContentTime::from_frames (_offset, vfr) + _next); + } _next += ContentTime::from_frames (1, vfr); if ((*_reel)->main_picture ()) { - if ((*_reel)->main_picture()->duration() >= _next.frames (vfr)) { - ++_reel; + if (_next.frames_round (vfr) >= (*_reel)->main_picture()->duration()) { + next_reel (); + _next = ContentTime (); } } - + return false; } +void +DCPDecoder::pass_texts (ContentTime next, dcp::Size size) +{ + list >::const_iterator decoder = text.begin (); + if ((*_reel)->main_subtitle()) { + DCPOMATIC_ASSERT (decoder != text.end ()); + pass_texts ( + next, (*_reel)->main_subtitle()->asset(), _dcp_content->reference_text(TEXT_OPEN_SUBTITLE), (*_reel)->main_subtitle()->entry_point(), *decoder, size + ); + ++decoder; + } + BOOST_FOREACH (shared_ptr i, (*_reel)->closed_captions()) { + DCPOMATIC_ASSERT (decoder != text.end ()); + pass_texts ( + next, i->asset(), _dcp_content->reference_text(TEXT_CLOSED_CAPTION), i->entry_point(), *decoder, size + ); + ++decoder; + } +} + +void +DCPDecoder::pass_texts (ContentTime next, shared_ptr asset, bool reference, int64_t entry_point, shared_ptr decoder, dcp::Size size) +{ + 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 (_decode_referenced || !reference) { + list > subs = asset->subtitles_during ( + dcp::Time (entry_point + frame, vfr, vfr), + dcp::Time (entry_point + frame + 1, vfr, vfr), + true + ); + + BOOST_FOREACH (shared_ptr i, subs) { + shared_ptr is = dynamic_pointer_cast (i); + if (is) { + list s; + s.push_back (*is); + decoder->emit_plain ( + ContentTimePeriod ( + ContentTime::from_frames (_offset - entry_point, vfr) + ContentTime::from_seconds (i->in().as_seconds ()), + ContentTime::from_frames (_offset - entry_point, vfr) + ContentTime::from_seconds (i->out().as_seconds ()) + ), + s + ); + } + + shared_ptr ii = dynamic_pointer_cast (i); + if (ii) { + shared_ptr image(new Image(ii->png_image())); + /* set up rect with height and width */ + dcpomatic::Rect rect(0, 0, image->size().width / double(size.width), image->size().height / double(size.height)); + + /* add in position */ + + switch (ii->h_align()) { + case dcp::HALIGN_LEFT: + rect.x += ii->h_position(); + break; + case dcp::HALIGN_CENTER: + rect.x += 0.5 + ii->h_position() - rect.width / 2; + break; + case dcp::HALIGN_RIGHT: + rect.x += 1 - ii->h_position() - rect.width; + break; + } + + switch (ii->v_align()) { + case dcp::VALIGN_TOP: + rect.y += ii->v_position(); + break; + case dcp::VALIGN_CENTER: + rect.y += 0.5 + ii->v_position() - rect.height / 2; + break; + case dcp::VALIGN_BOTTOM: + rect.y += 1 - ii->v_position() - rect.height; + break; + } + + decoder->emit_bitmap ( + ContentTimePeriod ( + ContentTime::from_frames (_offset - entry_point, vfr) + ContentTime::from_seconds (i->in().as_seconds ()), + ContentTime::from_frames (_offset - entry_point, vfr) + ContentTime::from_seconds (i->out().as_seconds ()) + ), + image, rect + ); + } + } + } +} + +void +DCPDecoder::next_reel () +{ + _offset += (*_reel)->main_picture()->duration(); + ++_reel; + get_readers (); +} + +void +DCPDecoder::get_readers () +{ + if (_reel == _reels.end() || !_dcp_content->can_be_played ()) { + _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); + if (!_dcp_content->can_be_played ()) { + return; + } + + Decoder::seek (t, accurate); _reel = _reels.begin (); - while (_reel != _reels.end() && t >= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->video_frame_rate ())) { - t -= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->video_frame_rate ()); - ++_reel; + _offset = 0; + get_readers (); + + int const pre_roll_seconds = 2; + + /* Pre-roll for subs */ + + ContentTime pre = t - ContentTime::from_seconds (pre_roll_seconds); + if (pre < ContentTime()) { + pre = ContentTime (); + } + + /* Seek to pre-roll position */ + + while (_reel != _reels.end() && pre >= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->active_video_frame_rate ())) { + ContentTime rd = ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->active_video_frame_rate ()); + pre -= rd; + t -= rd; + next_reel (); + } + + /* Pass texts in the pre-roll */ + + double const vfr = _dcp_content->active_video_frame_rate (); + for (int i = 0; i < pre_roll_seconds * vfr; ++i) { + pass_texts (pre, (*_reel)->main_picture()->asset()->size()); + pre += ContentTime::from_frames (1, vfr); + } + + /* Seek to correct position */ + + 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; } +void +DCPDecoder::set_decode_referenced (bool r) +{ + _decode_referenced = r; -list -DCPDecoder::subtitles_during (ContentTimePeriod, bool starting) const + if (video) { + video->set_ignore (_dcp_content->reference_video() && !_decode_referenced); + } + if (audio) { + audio->set_ignore (_dcp_content->reference_audio() && !_decode_referenced); + } +} + +void +DCPDecoder::set_forced_reduction (optional reduction) { - return list (); + _forced_reduction = reduction; }