+++ /dev/null
-/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
-
- This program 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,
- 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.
-
-*/
-
-/** @file src/j2k_wav_encoder.cc
- * @brief An encoder which writes JPEG2000 and WAV files.
- */
-
-#include <sstream>
-#include <stdexcept>
-#include <iomanip>
-#include <iostream>
-#include <boost/thread.hpp>
-#include <boost/filesystem.hpp>
-#include <boost/lexical_cast.hpp>
-#include <sndfile.h>
-#include <openjpeg.h>
-#include "j2k_wav_encoder.h"
-#include "config.h"
-#include "options.h"
-#include "exceptions.h"
-#include "dcp_video_frame.h"
-#include "server.h"
-#include "filter.h"
-#include "log.h"
-#include "cross.h"
-#include "film.h"
-
-using std::string;
-using std::stringstream;
-using std::list;
-using std::vector;
-using std::pair;
-using std::cout;
-using boost::shared_ptr;
-using boost::thread;
-using boost::lexical_cast;
-
-J2KWAVEncoder::J2KWAVEncoder (shared_ptr<const Film> f, shared_ptr<const EncodeOptions> o)
- : Encoder (f, o)
-#ifdef HAVE_SWRESAMPLE
- , _swr_context (0)
-#endif
- , _audio_frames_written (0)
- , _process_end (false)
-{
- if (_film->audio_stream()) {
- /* Create sound output files with .tmp suffixes; we will rename
- them if and when we complete.
- */
- for (int i = 0; i < _film->audio_channels(); ++i) {
- SF_INFO sf_info;
- sf_info.samplerate = dcp_audio_sample_rate (_film->audio_stream()->sample_rate());
- /* We write mono files */
- sf_info.channels = 1;
- sf_info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_24;
- SNDFILE* f = sf_open (_opt->multichannel_audio_out_path (i, true).c_str (), SFM_WRITE, &sf_info);
- if (f == 0) {
- throw CreateFileError (_opt->multichannel_audio_out_path (i, true));
- }
- _sound_files.push_back (f);
- }
- }
-}
-
-J2KWAVEncoder::~J2KWAVEncoder ()
-{
- terminate_worker_threads ();
- close_sound_files ();
-}
-
-void
-J2KWAVEncoder::terminate_worker_threads ()
-{
- boost::mutex::scoped_lock lock (_worker_mutex);
- _process_end = true;
- _worker_condition.notify_all ();
- lock.unlock ();
-
- for (list<boost::thread *>::iterator i = _worker_threads.begin(); i != _worker_threads.end(); ++i) {
- (*i)->join ();
- delete *i;
- }
-}
-
-void
-J2KWAVEncoder::close_sound_files ()
-{
- for (vector<SNDFILE*>::iterator i = _sound_files.begin(); i != _sound_files.end(); ++i) {
- sf_close (*i);
- }
-
- _sound_files.clear ();
-}
-
-void
-J2KWAVEncoder::do_process_video (shared_ptr<Image> yuv, shared_ptr<Subtitle> sub)
-{
- boost::mutex::scoped_lock lock (_worker_mutex);
-
- /* Wait until the queue has gone down a bit */
- while (_queue.size() >= _worker_threads.size() * 2 && !_process_end) {
- TIMING ("decoder sleeps with queue of %1", _queue.size());
- _worker_condition.wait (lock);
- TIMING ("decoder wakes with queue of %1", _queue.size());
- }
-
- if (_process_end) {
- return;
- }
-
- /* Only do the processing if we don't already have a file for this frame */
- if (!boost::filesystem::exists (_opt->frame_out_path (_video_frame, false))) {
- pair<string, string> const s = Filter::ffmpeg_strings (_film->filters());
- TIMING ("adding to queue of %1", _queue.size ());
- _queue.push_back (boost::shared_ptr<DCPVideoFrame> (
- new DCPVideoFrame (
- yuv, sub, _opt->out_size, _opt->padding, _film->subtitle_offset(), _film->subtitle_scale(),
- _film->scaler(), _video_frame, _film->frames_per_second(), s.second,
- Config::instance()->colour_lut_index (), Config::instance()->j2k_bandwidth (),
- _film->log()
- )
- ));
-
- _worker_condition.notify_all ();
- } else {
- frame_skipped ();
- }
-}
-
-void
-J2KWAVEncoder::encoder_thread (ServerDescription* server)
-{
- /* Number of seconds that we currently wait between attempts
- to connect to the server; not relevant for localhost
- encodings.
- */
- int remote_backoff = 0;
-
- while (1) {
-
- TIMING ("encoder thread %1 sleeps", boost::this_thread::get_id());
- boost::mutex::scoped_lock lock (_worker_mutex);
- while (_queue.empty () && !_process_end) {
- _worker_condition.wait (lock);
- }
-
- if (_process_end) {
- return;
- }
-
- TIMING ("encoder thread %1 wakes with queue of %2", boost::this_thread::get_id(), _queue.size());
- boost::shared_ptr<DCPVideoFrame> vf = _queue.front ();
- _film->log()->log (String::compose ("Encoder thread %1 pops frame %2 from queue", boost::this_thread::get_id(), vf->frame()), Log::VERBOSE);
- _queue.pop_front ();
-
- lock.unlock ();
-
- shared_ptr<EncodedData> encoded;
-
- if (server) {
- try {
- encoded = vf->encode_remotely (server);
-
- if (remote_backoff > 0) {
- _film->log()->log (String::compose ("%1 was lost, but now she is found; removing backoff", server->host_name ()));
- }
-
- /* This job succeeded, so remove any backoff */
- remote_backoff = 0;
-
- } catch (std::exception& e) {
- if (remote_backoff < 60) {
- /* back off more */
- remote_backoff += 10;
- }
- _film->log()->log (
- String::compose (
- "Remote encode of %1 on %2 failed (%3); thread sleeping for %4s",
- vf->frame(), server->host_name(), e.what(), remote_backoff)
- );
- }
-
- } else {
- try {
- TIMING ("encoder thread %1 begins local encode of %2", boost::this_thread::get_id(), vf->frame());
- encoded = vf->encode_locally ();
- TIMING ("encoder thread %1 finishes local encode of %2", boost::this_thread::get_id(), vf->frame());
- } catch (std::exception& e) {
- _film->log()->log (String::compose ("Local encode failed (%1)", e.what ()));
- }
- }
-
- if (encoded) {
- encoded->write (_opt, vf->frame ());
- frame_done ();
- } else {
- lock.lock ();
- _film->log()->log (
- String::compose ("Encoder thread %1 pushes frame %2 back onto queue after failure", boost::this_thread::get_id(), vf->frame())
- );
- _queue.push_front (vf);
- lock.unlock ();
- }
-
- if (remote_backoff > 0) {
- dvdomatic_sleep (remote_backoff);
- }
-
- lock.lock ();
- _worker_condition.notify_all ();
- }
-}
-
-void
-J2KWAVEncoder::process_begin ()
-{
- if (_film->audio_stream() && _film->audio_stream()->sample_rate() != _film->target_audio_sample_rate()) {
-#ifdef HAVE_SWRESAMPLE
-
- stringstream s;
- s << "Will resample audio from " << _film->audio_stream()->sample_rate() << " to " << _film->target_audio_sample_rate();
- _film->log()->log (s.str ());
-
- /* We will be using planar float data when we call the resampler */
- _swr_context = swr_alloc_set_opts (
- 0,
- _film->audio_stream()->channel_layout(),
- AV_SAMPLE_FMT_FLTP,
- _film->target_audio_sample_rate(),
- _film->audio_stream()->channel_layout(),
- AV_SAMPLE_FMT_FLTP,
- _film->audio_stream()->sample_rate(),
- 0, 0
- );
-
- swr_init (_swr_context);
-#else
- throw EncodeError ("Cannot resample audio as libswresample is not present");
-#endif
- } else {
-#ifdef HAVE_SWRESAMPLE
- _swr_context = 0;
-#endif
- }
-
- for (int i = 0; i < Config::instance()->num_local_encoding_threads (); ++i) {
- _worker_threads.push_back (new boost::thread (boost::bind (&J2KWAVEncoder::encoder_thread, this, (ServerDescription *) 0)));
- }
-
- vector<ServerDescription*> servers = Config::instance()->servers ();
-
- for (vector<ServerDescription*>::iterator i = servers.begin(); i != servers.end(); ++i) {
- for (int j = 0; j < (*i)->threads (); ++j) {
- _worker_threads.push_back (new boost::thread (boost::bind (&J2KWAVEncoder::encoder_thread, this, *i)));
- }
- }
-}
-
-void
-J2KWAVEncoder::process_end ()
-{
- boost::mutex::scoped_lock lock (_worker_mutex);
-
- _film->log()->log ("Clearing queue of " + lexical_cast<string> (_queue.size ()));
-
- /* Keep waking workers until the queue is empty */
- while (!_queue.empty ()) {
- _film->log()->log ("Waking with " + lexical_cast<string> (_queue.size ()), Log::VERBOSE);
- _worker_condition.notify_all ();
- _worker_condition.wait (lock);
- }
-
- lock.unlock ();
-
- terminate_worker_threads ();
-
- _film->log()->log ("Mopping up " + lexical_cast<string> (_queue.size()));
-
- /* The following sequence of events can occur in the above code:
- 1. a remote worker takes the last image off the queue
- 2. the loop above terminates
- 3. the remote worker fails to encode the image and puts it back on the queue
- 4. the remote worker is then terminated by terminate_worker_threads
-
- So just mop up anything left in the queue here.
- */
-
- for (list<shared_ptr<DCPVideoFrame> >::iterator i = _queue.begin(); i != _queue.end(); ++i) {
- _film->log()->log (String::compose ("Encode left-over frame %1", (*i)->frame ()));
- try {
- shared_ptr<EncodedData> e = (*i)->encode_locally ();
- e->write (_opt, (*i)->frame ());
- frame_done ();
- } catch (std::exception& e) {
- _film->log()->log (String::compose ("Local encode failed (%1)", e.what ()));
- }
- }
-
-#if HAVE_SWRESAMPLE
- if (_film->audio_stream() && _swr_context) {
-
- shared_ptr<AudioBuffers> out (new AudioBuffers (_film->audio_stream()->channels(), 256));
-
- while (1) {
- int const frames = swr_convert (_swr_context, (uint8_t **) out->data(), 256, 0, 0);
-
- if (frames < 0) {
- throw EncodeError ("could not run sample-rate converter");
- }
-
- if (frames == 0) {
- break;
- }
-
- out->set_frames (frames);
- write_audio (out);
- }
-
- swr_free (&_swr_context);
- }
-#endif
-
- if (_film->audio_stream()) {
- close_sound_files ();
-
- /* Rename .wav.tmp files to .wav */
- for (int i = 0; i < _film->audio_channels(); ++i) {
- if (boost::filesystem::exists (_opt->multichannel_audio_out_path (i, false))) {
- boost::filesystem::remove (_opt->multichannel_audio_out_path (i, false));
- }
- boost::filesystem::rename (_opt->multichannel_audio_out_path (i, true), _opt->multichannel_audio_out_path (i, false));
- }
- }
-}
-
-void
-J2KWAVEncoder::do_process_audio (shared_ptr<AudioBuffers> audio)
-{
- shared_ptr<AudioBuffers> resampled;
-
-#if HAVE_SWRESAMPLE
- /* Maybe sample-rate convert */
- if (_swr_context) {
-
- /* Compute the resampled frames count and add 32 for luck */
- int const max_resampled_frames = ceil ((int64_t) audio->frames() * _film->target_audio_sample_rate() / _film->audio_stream()->sample_rate()) + 32;
-
- resampled.reset (new AudioBuffers (_film->audio_stream()->channels(), max_resampled_frames));
-
- /* Resample audio */
- int const resampled_frames = swr_convert (
- _swr_context, (uint8_t **) resampled->data(), max_resampled_frames, (uint8_t const **) audio->data(), audio->frames()
- );
-
- if (resampled_frames < 0) {
- throw EncodeError ("could not run sample-rate converter");
- }
-
- resampled->set_frames (resampled_frames);
-
- /* And point our variables at the resampled audio */
- audio = resampled;
- }
-#endif
-
- write_audio (audio);
-}
-
-void
-J2KWAVEncoder::write_audio (shared_ptr<const AudioBuffers> audio)
-{
- for (int i = 0; i < _film->audio_channels(); ++i) {
- sf_write_float (_sound_files[i], audio->data(i), audio->frames());
- }
-
- _audio_frames_written += audio->frames ();
-}
-
projects / dcpomatic.git / blobdiff