#include "server.h"
#include "format.h"
#include "cross.h"
+#include "writer.h"
using std::pair;
using std::string;
using namespace boost;
int const Encoder::_history_size = 25;
-unsigned int const Encoder::_maximum_frames_in_memory = 8;
/** @param f Film that we are encoding.
* @param o Options.
*/
-Encoder::Encoder (shared_ptr<const Film> f)
+Encoder::Encoder (shared_ptr<Film> f)
: _film (f)
- , _just_skipped (false)
, _video_frames_in (0)
- , _audio_frames_in (0)
, _video_frames_out (0)
- , _audio_frames_out (0)
#ifdef HAVE_SWRESAMPLE
, _swr_context (0)
#endif
, _have_a_real_frame (false)
, _terminate_encoder (false)
- , _writer_thread (0)
- , _finish_writer (false)
- , _last_written_frame (-1)
{
- 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 < dcp_audio_channels (_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 (_film->multichannel_audio_out_path (i, true).c_str (), SFM_WRITE, &sf_info);
- if (f == 0) {
- throw CreateFileError (_film->multichannel_audio_out_path (i, true));
- }
- _sound_files.push_back (f);
- }
- }
+
}
Encoder::~Encoder ()
{
- close_sound_files ();
terminate_worker_threads ();
- finish_writer_thread ();
+ if (_writer) {
+ _writer->finish ();
+ }
}
void
}
}
- /* XXX! */
- _picture_asset.reset (
- new libdcp::MonoPictureAsset (
- _film->dir (_film->dcp_name()),
- String::compose ("video_%1.mxf", 0),
- DCPFrameRate (_film->frames_per_second()).frames_per_second,
- _film->format()->dcp_size()
- )
- );
-
- _picture_asset_writer = _picture_asset->start_write ();
- _writer_thread = new boost::thread (boost::bind (&Encoder::writer_thread, this));
+ _writer.reset (new Writer (_film));
}
}
out->set_frames (frames);
- write_audio (out);
+ _writer->write (out);
}
swr_free (&_swr_context);
}
#endif
- if (_film->audio_stream()) {
- close_sound_files ();
-
- /* Rename .wav.tmp files to .wav */
- for (int i = 0; i < dcp_audio_channels (_film->audio_channels()); ++i) {
- if (boost::filesystem::exists (_film->multichannel_audio_out_path (i, false))) {
- boost::filesystem::remove (_film->multichannel_audio_out_path (i, false));
- }
- boost::filesystem::rename (_film->multichannel_audio_out_path (i, true), _film->multichannel_audio_out_path (i, false));
- }
- }
-
boost::mutex::scoped_lock lock (_worker_mutex);
_film->log()->log ("Clearing queue of " + lexical_cast<string> (_encode_queue.size ()));
for (list<shared_ptr<DCPVideoFrame> >::iterator i = _encode_queue.begin(); i != _encode_queue.end(); ++i) {
_film->log()->log (String::compose ("Encode left-over frame %1", (*i)->frame ()));
try {
- shared_ptr<EncodedData> e = (*i)->encode_locally ();
- {
- boost::mutex::scoped_lock lock2 (_writer_mutex);
- _write_queue.push_back (make_pair (e, (*i)->frame ()));
- _writer_condition.notify_all ();
- }
+ _writer->write ((*i)->encode_locally(), (*i)->frame ());
frame_done ();
} catch (std::exception& e) {
_film->log()->log (String::compose ("Local encode failed (%1)", e.what ()));
}
}
- finish_writer_thread ();
- _picture_asset_writer->finalize ();
+ _writer->finish ();
+ _writer.reset ();
}
/** @return an estimate of the current number of frames we are encoding per second,
return _history_size / (seconds (now) - seconds (_time_history.back ()));
}
-/** @return true if the last frame to be processed was skipped as it already existed */
-bool
-Encoder::skipping () const
-{
- boost::mutex::scoped_lock (_history_mutex);
- return _just_skipped;
-}
-
/** @return Number of video frames that have been sent out */
int
Encoder::video_frames_out () const
Encoder::frame_done ()
{
boost::mutex::scoped_lock lock (_history_mutex);
- _just_skipped = false;
struct timeval tv;
gettimeofday (&tv, 0);
}
}
-/** Called by a subclass when it has just skipped the processing
- of a frame because it has already been done.
-*/
-void
-Encoder::frame_skipped ()
-{
- boost::mutex::scoped_lock lock (_history_mutex);
- _just_skipped = true;
-}
-
void
Encoder::process_video (shared_ptr<Image> image, bool same, boost::shared_ptr<Subtitle> sub)
{
return;
}
- /* Only do the processing if we don't already have a file for this frame */
- if (boost::filesystem::exists (_film->frame_out_path (_video_frames_out, false))) {
- frame_skipped ();
- return;
- }
-
if (same && _have_a_real_frame) {
- /* Use the last frame that we encoded. We do this by putting a null encoded
- frame straight onto the writer's queue. It will know to duplicate the previous frame
- in this case.
- */
- boost::mutex::scoped_lock lock2 (_writer_mutex);
- _write_queue.push_back (make_pair (shared_ptr<EncodedData> (), _video_frames_out));
+ /* Use the last frame that we encoded. */
+ _writer->repeat (_video_frames_out);
+ frame_done ();
} else {
/* Queue this new frame for encoding */
pair<string, string> const s = Filter::ffmpeg_strings (_film->filters());
++_video_frames_out;
if (dfr.repeat) {
- boost::mutex::scoped_lock lock2 (_writer_mutex);
- _write_queue.push_back (make_pair (shared_ptr<EncodedData> (), _video_frames_out));
+ _writer->repeat (_video_frames_out);
++_video_frames_out;
+ frame_done ();
}
}
data = b;
}
- write_audio (data);
-
- _audio_frames_in += data->frames ();
-}
-
-void
-Encoder::write_audio (shared_ptr<const AudioBuffers> audio)
-{
- for (int i = 0; i < audio->channels(); ++i) {
- sf_write_float (_sound_files[i], audio->data(i), audio->frames());
- }
-
- _audio_frames_out += audio->frames ();
+ _writer->write (data);
}
-void
-Encoder::close_sound_files ()
-{
- for (vector<SNDFILE*>::iterator i = _sound_files.begin(); i != _sound_files.end(); ++i) {
- sf_close (*i);
- }
-
- _sound_files.clear ();
-}
-
void
Encoder::terminate_worker_threads ()
{
}
}
-void
-Encoder::finish_writer_thread ()
-{
- if (!_writer_thread) {
- return;
- }
-
- boost::mutex::scoped_lock lock (_writer_mutex);
- _finish_writer = true;
- _writer_condition.notify_all ();
- lock.unlock ();
-
- _writer_thread->join ();
- delete _writer_thread;
- _writer_thread = 0;
-}
-
void
Encoder::encoder_thread (ServerDescription* server)
{
}
if (encoded) {
- boost::mutex::scoped_lock lock2 (_writer_mutex);
- _write_queue.push_back (make_pair (encoded, vf->frame ()));
- _writer_condition.notify_all ();
+ _writer->write (encoded, vf->frame ());
+ frame_done ();
} else {
lock.lock ();
_film->log()->log (
_worker_condition.notify_all ();
}
}
-
-void
-Encoder::link (string a, string b) const
-{
-#ifdef DVDOMATIC_POSIX
- int const r = symlink (a.c_str(), b.c_str());
- if (r) {
- throw EncodeError (String::compose ("could not create symlink from %1 to %2", a, b));
- }
-#endif
-
-#ifdef DVDOMATIC_WINDOWS
- boost::filesystem::copy_file (a, b);
-#endif
-}
-
-struct WriteQueueSorter
-{
- bool operator() (pair<shared_ptr<EncodedData>, int> const & a, pair<shared_ptr<EncodedData>, int> const & b) {
- return a.second < b.second;
- }
-};
-
-void
-Encoder::writer_thread ()
-{
- while (1)
- {
- boost::mutex::scoped_lock lock (_writer_mutex);
-
- while (1) {
- if (_finish_writer ||
- _write_queue.size() > _maximum_frames_in_memory ||
- (!_write_queue.empty() && _write_queue.front().second == (_last_written_frame + 1))) {
-
- break;
- }
-
- TIMING ("writer sleeps with a queue of %1; %2 pending", _write_queue.size(), _pending.size());
- _writer_condition.wait (lock);
- TIMING ("writer wakes with a queue of %1", _write_queue.size());
-
- _write_queue.sort (WriteQueueSorter ());
- }
-
- if (_finish_writer && _write_queue.empty() && _pending.empty()) {
- return;
- }
-
- /* Write any frames that we can write; i.e. those that are in sequence */
- while (!_write_queue.empty() && _write_queue.front().second == (_last_written_frame + 1)) {
- pair<boost::shared_ptr<EncodedData>, int> encoded = _write_queue.front ();
- _write_queue.pop_front ();
-
- lock.unlock ();
- _film->log()->log (String::compose ("Writer writes %1 to MXF", encoded.second));
- if (encoded.first) {
- _picture_asset_writer->write (encoded.first->data(), encoded.first->size());
- _last_written = encoded.first;
- } else {
- _picture_asset_writer->write (_last_written->data(), _last_written->size());
- }
- lock.lock ();
-
- ++_last_written_frame;
- }
-
- while (_write_queue.size() > _maximum_frames_in_memory) {
- /* Too many frames in memory which can't yet be written to the stream.
- Put some to disk.
- */
-
- pair<boost::shared_ptr<EncodedData>, int> encoded = _write_queue.back ();
- _write_queue.pop_back ();
- if (!encoded.first) {
- /* This is a `repeat-last' frame, so no need to write it to disk */
- continue;
- }
-
- lock.unlock ();
- _film->log()->log (String::compose ("Writer full (awaiting %1); pushes %2 to disk", _last_written_frame + 1, encoded.second));
- encoded.first->write (_film, encoded.second);
- lock.lock ();
-
- _pending.push_back (encoded.second);
- }
-
- while (_write_queue.size() < _maximum_frames_in_memory && !_pending.empty()) {
- /* We have some space in memory. Fetch some frames back off disk. */
-
- _pending.sort ();
- int const fetch = _pending.front ();
-
- lock.unlock ();
- _film->log()->log (String::compose ("Writer pulls %1 back from disk", fetch));
- shared_ptr<EncodedData> encoded;
- if (boost::filesystem::exists (_film->frame_out_path (fetch, false))) {
- /* It's an actual frame (not a repeat-last); load it in */
- encoded.reset (new EncodedData (_film->frame_out_path (fetch, false)));
- }
- lock.lock ();
-
- _write_queue.push_back (make_pair (encoded, fetch));
- _pending.remove (fetch);
- }
- }
-}
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