X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fffmpeg_encoder.cc;h=61e489f071c112e6d092438430ba919e83654a2d;hb=f06c5136e7d3cd0a8e1814763c7774859998efe4;hp=7d1597e369420f7e3cbd6b1180ce029b68d5e764;hpb=b7ded219e1c21ca19eb9396b7590ae861d8bfb88;p=dcpomatic.git diff --git a/src/lib/ffmpeg_encoder.cc b/src/lib/ffmpeg_encoder.cc index 7d1597e36..61e489f07 100644 --- a/src/lib/ffmpeg_encoder.cc +++ b/src/lib/ffmpeg_encoder.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2017 Carl Hetherington + Copyright (C) 2017-2018 Carl Hetherington This file is part of DCP-o-matic. @@ -25,6 +25,8 @@ #include "player_video.h" #include "log.h" #include "image.h" +#include "cross.h" +#include "butler.h" #include "compose.hpp" #include @@ -33,198 +35,253 @@ using std::string; using std::runtime_error; using std::cout; +using std::pair; +using std::list; +using std::map; using boost::shared_ptr; using boost::bind; using boost::weak_ptr; - -static AVPixelFormat -force_pixel_format (AVPixelFormat, AVPixelFormat out) -{ - return out; -} - -FFmpegEncoder::FFmpegEncoder (shared_ptr film, weak_ptr job, boost::filesystem::path output, Format format) +using boost::optional; +using namespace dcpomatic; + +/** @param key Key to use to encrypt MP4 outputs */ +FFmpegEncoder::FFmpegEncoder ( + shared_ptr film, + weak_ptr job, + boost::filesystem::path output, + ExportFormat format, + bool mixdown_to_stereo, + bool split_reels, + int x264_crf +#ifdef DCPOMATIC_VARIANT_SWAROOP + , optional key + , optional id +#endif + ) : Encoder (film, job) - , _options (0) - , _history (1000) - , _output (output) -{ - switch (format) { - case FORMAT_PRORES: - _pixel_format = AV_PIX_FMT_YUV422P10; - _codec_name = "prores_ks"; - av_dict_set (&_options, "profile", "3", 0); - av_dict_set (&_options, "threads", "auto", 0); - break; - case FORMAT_H264: - _pixel_format = AV_PIX_FMT_YUV420P; - _codec_name = "libx264"; - break; - } -} - -void -FFmpegEncoder::go () + , _history (200) { - AVCodec* codec = avcodec_find_encoder_by_name (_codec_name.c_str()); - if (!codec) { - throw runtime_error (String::compose ("could not find FFmpeg encoder %1", _codec_name)); - } - - _codec_context = avcodec_alloc_context3 (codec); - if (!_codec_context) { - throw runtime_error ("could not allocate FFmpeg context"); - } - - avcodec_get_context_defaults3 (_codec_context, codec); + int const files = split_reels ? film->reels().size() : 1; + for (int i = 0; i < files; ++i) { - /* Variable quantisation */ - _codec_context->global_quality = 0; - _codec_context->width = _film->frame_size().width; - _codec_context->height = _film->frame_size().height; - _codec_context->time_base = (AVRational) { 1, _film->video_frame_rate() }; - _codec_context->pix_fmt = _pixel_format; - _codec_context->flags |= CODEC_FLAG_QSCALE | CODEC_FLAG_GLOBAL_HEADER; - - avformat_alloc_output_context2 (&_format_context, 0, 0, _output.string().c_str()); - if (!_format_context) { - throw runtime_error ("could not allocate FFmpeg format context"); - } - - _video_stream = avformat_new_stream (_format_context, codec); - if (!_video_stream) { - throw runtime_error ("could not create FFmpeg output video stream"); - } + boost::filesystem::path filename = output; + string extension = boost::filesystem::extension (filename); + filename = boost::filesystem::change_extension (filename, ""); - /* Note: needs to increment with each stream */ - _video_stream->id = 0; - _video_stream->codec = _codec_context; + if (files > 1) { + /// TRANSLATORS: _reel%1 here is to be added to an export filename to indicate + /// which reel it is. Preserve the %1; it will be replaced with the reel number. + filename = filename.string() + String::compose(_("_reel%1"), i + 1); + } - if (avcodec_open2 (_codec_context, codec, &_options) < 0) { - throw runtime_error ("could not open FFmpeg codec"); + _file_encoders.push_back ( + FileEncoderSet ( + _film->frame_size(), + _film->video_frame_rate(), + _film->audio_frame_rate(), + mixdown_to_stereo ? 2 : film->audio_channels(), + format, + x264_crf, + _film->three_d(), + filename, + extension +#ifdef DCPOMATIC_VARIANT_SWAROOP + , key + , id +#endif + ) + ); } - if (avio_open (&_format_context->pb, _output.c_str(), AVIO_FLAG_WRITE) < 0) { - throw runtime_error ("could not open FFmpeg output file"); + _player->set_always_burn_open_subtitles (); + _player->set_play_referenced (); + + int const ch = film->audio_channels (); + + AudioMapping map; + if (mixdown_to_stereo) { + _output_audio_channels = 2; + map = AudioMapping (ch, 2); + float const overall_gain = 2 / (4 + sqrt(2)); + float const minus_3dB = 1 / sqrt(2); + map.set (dcp::LEFT, 0, overall_gain); + map.set (dcp::RIGHT, 1, overall_gain); + map.set (dcp::CENTRE, 0, overall_gain * minus_3dB); + map.set (dcp::CENTRE, 1, overall_gain * minus_3dB); + map.set (dcp::LS, 0, overall_gain); + map.set (dcp::RS, 1, overall_gain); + } else { + _output_audio_channels = ch; + map = AudioMapping (ch, ch); + for (int i = 0; i < ch; ++i) { + map.set (i, i, 1); + } } - if (avformat_write_header (_format_context, &_options) < 0) { - throw runtime_error ("could not write header to FFmpeg output file"); - } + _butler.reset (new Butler(_player, map, _output_audio_channels, bind(&PlayerVideo::force, _1, FFmpegFileEncoder::pixel_format(format)), true, false)); +} +void +FFmpegEncoder::go () +{ { shared_ptr job = _job.lock (); DCPOMATIC_ASSERT (job); job->sub (_("Encoding")); } - while (!_player->pass ()) {} - - while (true) { - AVPacket packet; - av_init_packet (&packet); - packet.data = 0; - packet.size = 0; - - int got_packet; - avcodec_encode_video2 (_codec_context, &packet, 0, &got_packet); - if (!got_packet) { - break; + Waker waker; + + list reel_periods = _film->reels (); + list::const_iterator reel = reel_periods.begin (); + list::iterator encoder = _file_encoders.begin (); + + DCPTime const video_frame = DCPTime::from_frames (1, _film->video_frame_rate ()); + int const audio_frames = video_frame.frames_round(_film->audio_frame_rate()); + float* interleaved = new float[_output_audio_channels * audio_frames]; + shared_ptr deinterleaved (new AudioBuffers (_output_audio_channels, audio_frames)); + int const gets_per_frame = _film->three_d() ? 2 : 1; + for (DCPTime i; i < _film->length(); i += video_frame) { + + if (_file_encoders.size() > 1 && !reel->contains(i)) { + /* Next reel and file */ + ++reel; + ++encoder; + DCPOMATIC_ASSERT (reel != reel_periods.end()); + DCPOMATIC_ASSERT (encoder != _file_encoders.end()); } - packet.stream_index = 0; - av_interleaved_write_frame (_format_context, &packet); - av_packet_unref (&packet); - } - - av_write_trailer (_format_context); - - avcodec_close (_codec_context); - avio_close (_format_context->pb); - avformat_free_context (_format_context); -} + for (int j = 0; j < gets_per_frame; ++j) { + Butler::Error e; + pair, DCPTime> v = _butler->get_video (true, &e); + if (!v.first) { + throw ProgrammingError(__FILE__, __LINE__, String::compose("butler returned no video; error was %1", static_cast(e))); + } + shared_ptr fe = encoder->get (v.first->eyes()); + if (fe) { + fe->video(v.first, v.second); + } + } -void -FFmpegEncoder::video (shared_ptr video, DCPTime time) -{ - shared_ptr image = video->image ( - bind (&Log::dcp_log, _film->log().get(), _1, _2), - bind (&force_pixel_format, _1, _pixel_format), - true, - false - ); - - AVFrame* frame = av_frame_alloc (); - - for (int i = 0; i < 3; ++i) { - size_t const size = image->stride()[i] * image->size().height; - AVBufferRef* buffer = av_buffer_alloc (size); - /* XXX: inefficient */ - memcpy (buffer->data, image->data()[i], size); - frame->buf[i] = av_buffer_ref (buffer); - frame->data[i] = buffer->data; - frame->linesize[i] = image->stride()[i]; - av_buffer_unref (&buffer); - } + _history.event (); - frame->width = image->size().width; - frame->height = image->size().height; - frame->format = _pixel_format; - frame->pts = time.seconds() / av_q2d (_video_stream->time_base); + { + boost::mutex::scoped_lock lm (_mutex); + _last_time = i; + } - AVPacket packet; - av_init_packet (&packet); - packet.data = 0; - packet.size = 0; + shared_ptr job = _job.lock (); + if (job) { + job->set_progress (float(i.get()) / _film->length().get()); + } - int got_packet; - if (avcodec_encode_video2 (_codec_context, &packet, frame, &got_packet) < 0) { - throw EncodeError ("FFmpeg video encode failed"); - } + waker.nudge (); - if (got_packet && packet.size) { - /* XXX: this should not be hard-wired */ - packet.stream_index = 0; - av_interleaved_write_frame (_format_context, &packet); - av_packet_unref (&packet); + _butler->get_audio (interleaved, audio_frames); + /* XXX: inefficient; butler interleaves and we deinterleave again */ + float* p = interleaved; + for (int j = 0; j < audio_frames; ++j) { + for (int k = 0; k < _output_audio_channels; ++k) { + deinterleaved->data(k)[j] = *p++; + } + } + encoder->audio (deinterleaved); } + delete[] interleaved; - av_frame_free (&frame); - - _history.event (); - - { - boost::mutex::scoped_lock lm (_mutex); - _last_time = time; + BOOST_FOREACH (FileEncoderSet i, _file_encoders) { + i.flush (); } +} - shared_ptr job = _job.lock (); - if (job) { - job->set_progress (float(time.get()) / _film->length().get()); - } +optional +FFmpegEncoder::current_rate () const +{ + return _history.rate (); } -void -FFmpegEncoder::audio (shared_ptr audio, DCPTime time) +Frame +FFmpegEncoder::frames_done () const { + boost::mutex::scoped_lock lm (_mutex); + return _last_time.frames_round (_film->video_frame_rate ()); +} +FFmpegEncoder::FileEncoderSet::FileEncoderSet ( + dcp::Size video_frame_size, + int video_frame_rate, + int audio_frame_rate, + int channels, + ExportFormat format, + int x264_crf, + bool three_d, + boost::filesystem::path output, + string extension +#ifdef DCPOMATIC_VARIANT_SWAROOP + , optional key + , optional id +#endif + ) +{ + if (three_d) { + /// TRANSLATORS: L here is an abbreviation for "left", to indicate the left-eye part of a 3D export + _encoders[EYES_LEFT] = shared_ptr( + new FFmpegFileEncoder(video_frame_size, video_frame_rate, audio_frame_rate, channels, format, x264_crf, String::compose("%1_%2%3", output.string(), _("L"), extension) +#ifdef DCPOMATIC_VARIANT_SWAROOP + , key, id +#endif + ) + ); + /// TRANSLATORS: R here is an abbreviation for "right", to indicate the right-eye part of a 3D export + _encoders[EYES_RIGHT] = shared_ptr( + new FFmpegFileEncoder(video_frame_size, video_frame_rate, audio_frame_rate, channels, format, x264_crf, String::compose("%1_%2%3", output.string(), _("R"), extension) +#ifdef DCPOMATIC_VARIANT_SWAROOP + , key, id +#endif + ) + ); + } else { + _encoders[EYES_BOTH] = shared_ptr( + new FFmpegFileEncoder(video_frame_size, video_frame_rate, audio_frame_rate, channels, format, x264_crf, String::compose("%1%2", output.string(), extension) +#ifdef DCPOMATIC_VARIANT_SWAROOP + , key, id +#endif + ) + ); + } } -void -FFmpegEncoder::subtitle (PlayerSubtitles subs, DCPTimePeriod period) +shared_ptr +FFmpegEncoder::FileEncoderSet::get (Eyes eyes) const { + if (_encoders.size() == 1) { + /* We are doing a 2D export... */ + if (eyes == EYES_LEFT) { + /* ...but we got some 3D data; put the left eye into the output... */ + eyes = EYES_BOTH; + } else if (eyes == EYES_RIGHT) { + /* ...and ignore the right eye.*/ + return shared_ptr(); + } + } + map >::const_iterator i = _encoders.find (eyes); + DCPOMATIC_ASSERT (i != _encoders.end()); + return i->second; } -float -FFmpegEncoder::current_rate () const +void +FFmpegEncoder::FileEncoderSet::flush () { - return _history.rate (); + for (map >::iterator i = _encoders.begin(); i != _encoders.end(); ++i) { + i->second->flush (); + } } -Frame -FFmpegEncoder::frames_done () const +void +FFmpegEncoder::FileEncoderSet::audio (shared_ptr a) { - boost::mutex::scoped_lock lm (_mutex); - return _last_time.frames_round (_film->video_frame_rate ()); + for (map >::iterator i = _encoders.begin(); i != _encoders.end(); ++i) { + i->second->audio (a); + } }