X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fffmpeg.cc;h=8eb19816c0828b44b1dfc82bc030f19d37378ea5;hb=8902a7adb63e2dac24e877ed1035bf344397c260;hp=bfa3d4e7f7dd8401976d5f08e9af8f03af8f72b2;hpb=9423e02c37daba7f9e406929a1cfc1bb10fb4b62;p=dcpomatic.git diff --git a/src/lib/ffmpeg.cc b/src/lib/ffmpeg.cc index bfa3d4e7f..8eb19816c 100644 --- a/src/lib/ffmpeg.cc +++ b/src/lib/ffmpeg.cc @@ -1,19 +1,20 @@ /* - Copyright (C) 2013-2016 Carl Hetherington + Copyright (C) 2013-2019 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 . */ @@ -22,12 +23,15 @@ #include "film.h" #include "exceptions.h" #include "util.h" -#include "raw_convert.h" #include "log.h" +#include "dcpomatic_log.h" #include "ffmpeg_subtitle_stream.h" #include "ffmpeg_audio_stream.h" -#include "md5_digester.h" +#include "decrypted_ecinema_kdm.h" +#include "digester.h" #include "compose.hpp" +#include "config.h" +#include extern "C" { #include #include @@ -45,9 +49,10 @@ using std::cerr; using std::vector; using boost::shared_ptr; using boost::optional; +using dcp::raw_convert; +using namespace dcpomatic; boost::mutex FFmpeg::_mutex; -boost::weak_ptr FFmpeg::_ffmpeg_log; FFmpeg::FFmpeg (boost::shared_ptr c) : _ffmpeg_content (c) @@ -95,42 +100,42 @@ FFmpeg::ffmpeg_log_callback (void* ptr, int level, const char* fmt, va_list vl) char line[1024]; static int prefix = 0; av_log_format_line (ptr, level, fmt, vl, line, sizeof (line), &prefix); - shared_ptr log = _ffmpeg_log.lock (); - if (log) { - string str (line); - boost::algorithm::trim (str); - log->log (String::compose ("FFmpeg: %1", str), LogEntry::TYPE_GENERAL); - } else { - cerr << line; - } + string str (line); + boost::algorithm::trim (str); + dcpomatic_log->log (String::compose ("FFmpeg: %1", str), LogEntry::TYPE_GENERAL); } void FFmpeg::setup_general () { - av_register_all (); - /* This might not work too well in some cases of multiple FFmpeg decoders, but it's probably good enough. */ - _ffmpeg_log = _ffmpeg_content->film()->log (); av_log_set_callback (FFmpeg::ffmpeg_log_callback); _file_group.set_paths (_ffmpeg_content->paths ()); _avio_buffer = static_cast (wrapped_av_malloc (_avio_buffer_size)); _avio_context = avio_alloc_context (_avio_buffer, _avio_buffer_size, 0, this, avio_read_wrapper, 0, avio_seek_wrapper); + if (!_avio_context) { + throw std::bad_alloc (); + } _format_context = avformat_alloc_context (); + if (!_format_context) { + throw std::bad_alloc (); + } _format_context->pb = _avio_context; AVDictionary* options = 0; - /* These durations are in microseconds, and represent how far into the content file - we will look for streams. - */ - av_dict_set (&options, "analyzeduration", raw_convert (5 * 60 * 1000000).c_str(), 0); - av_dict_set (&options, "probesize", raw_convert (5 * 60 * 1000000).c_str(), 0); +#ifdef DCPOMATIC_VARIANT_SWAROOP + if (_ffmpeg_content->kdm()) { + DecryptedECinemaKDM kdm (_ffmpeg_content->kdm().get(), Config::instance()->decryption_chain()->key().get()); + av_dict_set (&options, "decryption_key", kdm.key().hex().c_str(), 0); + } +#endif - if (avformat_open_input (&_format_context, 0, 0, &options) < 0) { - throw OpenFileError (_ffmpeg_content->path(0).string ()); + int e = avformat_open_input (&_format_context, 0, 0, &options); + if (e < 0) { + throw OpenFileError (_ffmpeg_content->path(0).string(), e, OpenFileError::READ); } if (avformat_find_stream_info (_format_context, 0) < 0) { @@ -143,7 +148,7 @@ FFmpeg::setup_general () for (uint32_t i = 0; i < _format_context->nb_streams; ++i) { AVStream* s = _format_context->streams[i]; - if (s->codec->codec_type == AVMEDIA_TYPE_VIDEO) { + if (s->codec->codec_type == AVMEDIA_TYPE_VIDEO && avcodec_find_decoder(s->codec->codec_id)) { if (s->avg_frame_rate.num > 0 && s->avg_frame_rate.den > 0) { /* This is definitely our video stream */ _video_stream = i; @@ -161,6 +166,11 @@ FFmpeg::setup_general () _video_stream = video_stream_undefined_frame_rate.get(); } + /* Ignore video streams with crazy frame rates. These are usually things like album art on MP3s. */ + if (_video_stream && av_q2d(av_guess_frame_rate(_format_context, _format_context->streams[_video_stream.get()], 0)) > 1000) { + _video_stream = optional(); + } + /* Hack: if the AVStreams have duplicate IDs, replace them with our own. We use the IDs so that we can cope with VOBs, in which streams move about in index but remain with the same ID in different @@ -200,26 +210,35 @@ FFmpeg::setup_decoders () AVCodec* codec = avcodec_find_decoder (context->codec_id); if (codec) { + AVDictionary* options = 0; /* This option disables decoding of DCA frame footers in our patched version of FFmpeg. I believe these footers are of no use to us, and they can cause problems when FFmpeg fails to decode them (mantis #352). */ - AVDictionary* options = 0; av_dict_set (&options, "disable_footer", "1", 0); + /* This allows decoding of some DNxHR 444 and HQX files; see + https://trac.ffmpeg.org/ticket/5681 + */ + av_dict_set_int (&options, "strict", FF_COMPLIANCE_EXPERIMENTAL, 0); + /* Enable following of links in files */ + av_dict_set_int (&options, "enable_drefs", 1, 0); if (avcodec_open2 (context, codec, &options) < 0) { throw DecodeError (N_("could not open decoder")); } + } else { + dcpomatic_log->log (String::compose ("No codec found for stream %1", i), LogEntry::TYPE_WARNING); } - - /* We are silently ignoring any failures to find suitable decoders here */ } } AVCodecContext * FFmpeg::video_codec_context () const { - DCPOMATIC_ASSERT (_video_stream); + if (!_video_stream) { + return 0; + } + return _format_context->streams[_video_stream.get()]->codec; } @@ -265,59 +284,6 @@ FFmpeg::subtitle_period (AVSubtitle const & sub) ); } -string -FFmpeg::subtitle_id (AVSubtitle const & sub) -{ - MD5Digester digester; - digester.add (sub.pts); - for (unsigned int i = 0; i < sub.num_rects; ++i) { - AVSubtitleRect* rect = sub.rects[i]; - digester.add (rect->x); - digester.add (rect->y); - digester.add (rect->w); - digester.add (rect->h); -#ifdef DCPOMATIC_HAVE_AVSUBTITLERECT_PICT - int const line = rect->pict.linesize[0]; - for (int j = 0; j < rect->h; ++j) { - digester.add (rect->pict.data[0] + j * line, line); - } -#else - int const line = rect->linesize[0]; - for (int j = 0; j < rect->h; ++j) { - digester.add (rect->data[0] + j * line, line); - } -#endif - } - return digester.get (); -} - -/** @return true if sub starts a new image subtitle */ -bool -FFmpeg::subtitle_starts_image (AVSubtitle const & sub) -{ - bool image = false; - bool text = false; - - for (unsigned int i = 0; i < sub.num_rects; ++i) { - switch (sub.rects[i]->type) { - case SUBTITLE_BITMAP: - image = true; - break; - case SUBTITLE_TEXT: - case SUBTITLE_ASS: - text = true; - break; - default: - break; - } - } - - /* We can't cope with mixed image/text in one AVSubtitle */ - DCPOMATIC_ASSERT (!image || !text); - - return image; -} - /** Compute the pts offset to use given a set of audio streams and some video details. * Sometimes these parameters will have just been determined by an Examiner, sometimes * they will have been retrieved from a piece of Content, hence the need for this method @@ -365,7 +331,7 @@ FFmpeg::pts_offset (vector > audio_streams, option /* Now adjust so that the video pts starts on a frame */ if (first_video) { ContentTime const fvc = first_video.get() + po; - po += fvc.round_up (video_frame_rate) - fvc; + po += fvc.ceil (video_frame_rate) - fvc; } return po;