X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Fffmpeg.cc;h=8eb19816c0828b44b1dfc82bc030f19d37378ea5;hp=df708d923d278d21d2aaab71c97e7263ef626a62;hb=6ef1fc5f40567650ca9ef2b7644e4fdd97640ae6;hpb=22873931f874a87fcf6a0077eddbec0f97eb3423 diff --git a/src/lib/ffmpeg.cc b/src/lib/ffmpeg.cc index df708d923..8eb19816c 100644 --- a/src/lib/ffmpeg.cc +++ b/src/lib/ffmpeg.cc @@ -1,19 +1,20 @@ /* - Copyright (C) 2013-2015 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) @@ -56,7 +61,6 @@ FFmpeg::FFmpeg (boost::shared_ptr c) , _avio_context (0) , _format_context (0) , _frame (0) - , _video_stream (-1) { setup_general (); setup_decoders (); @@ -96,42 +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) { @@ -140,11 +144,11 @@ FFmpeg::setup_general () /* Find video stream */ - int video_stream_undefined_frame_rate = -1; + optional video_stream_undefined_frame_rate; 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; @@ -158,12 +162,13 @@ FFmpeg::setup_general () /* Files from iTunes sometimes have two video streams, one with the avg_frame_rate.num and .den set to zero. Only use such a stream if there is no alternative. */ - if (_video_stream == -1 && video_stream_undefined_frame_rate != -1) { - _video_stream = video_stream_undefined_frame_rate; + if (!_video_stream && video_stream_undefined_frame_rate) { + _video_stream = video_stream_undefined_frame_rate.get(); } - if (_video_stream < 0) { - throw DecodeError (N_("could not find video stream")); + /* 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 @@ -205,26 +210,36 @@ 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 { - return _format_context->streams[_video_stream]->codec; + if (!_video_stream) { + return 0; + } + + return _format_context->streams[_video_stream.get()]->codec; } AVCodecContext * @@ -269,27 +284,6 @@ FFmpeg::subtitle_period (AVSubtitle const & sub) ); } -string -FFmpeg::subtitle_id (AVSubtitle const & sub) -{ - MD5Digester digester; - digester.add (sub.start_display_time); - digester.add (sub.end_display_time); - 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); - int const line = rect->pict.linesize[0]; - for (int j = 0; j < rect->h; ++j) { - digester.add (rect->pict.data[0] + j * line, line); - } - } - return digester.get (); -} - /** 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 @@ -337,7 +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;