{
check_existing_picture_mxf ();
- /* Create our picture asset in a subdirectory, named according to the
+ /* Create our picture asset in a subdirectory, named according to those
film's parameters which affect the video output. We will hard-link
it into the DCP later.
*/
_film->format()->dcp_size()
)
);
-
- _picture_asset_writer = _picture_asset->start_write ();
+
+ _picture_asset_writer = _picture_asset->start_write (_first_nonexistant_frame > 0);
if (_film->audio_channels() > 0) {
_sound_asset.reset (
Writer::write (shared_ptr<const EncodedData> encoded, int frame)
{
boost::mutex::scoped_lock lock (_mutex);
- _queue.push_back (make_pair (encoded, frame));
+
+ QueueItem qi;
+ qi.type = QueueItem::FULL;
+ qi.encoded = encoded;
+ qi.frame = frame;
+ _queue.push_back (qi);
+
+ _condition.notify_all ();
+}
+
+void
+Writer::fake_write (int frame)
+{
+ boost::mutex::scoped_lock lock (_mutex);
+
+ ifstream ifi (_film->info_path (frame).c_str());
+ libdcp::FrameInfo info (ifi);
+
+ QueueItem qi;
+ qi.type = QueueItem::FAKE;
+ qi.size = info.size;
+ qi.frame = frame;
+ _queue.push_back (qi);
+
_condition.notify_all ();
}
_sound_asset_writer->write (audio->data(), audio->frames());
}
-struct QueueSorter
-{
- bool operator() (pair<shared_ptr<const EncodedData>, int> const & a, pair<shared_ptr<const EncodedData>, int> const & b) {
- return a.second < b.second;
- }
-};
-
void
Writer::thread ()
{
while (1) {
if (_finish ||
_queue.size() > _maximum_frames_in_memory ||
- (!_queue.empty() && _queue.front().second == (_last_written_frame + 1))) {
+ (!_queue.empty() && _queue.front().frame == (_last_written_frame + 1))) {
break;
}
_condition.wait (lock);
TIMING ("writer wakes with a queue of %1", _queue.size());
- _queue.sort (QueueSorter ());
+ _queue.sort ();
}
if (_finish && _queue.empty() && _pending.empty()) {
}
/* Write any frames that we can write; i.e. those that are in sequence */
- while (!_queue.empty() && _queue.front().second == (_last_written_frame + 1)) {
- pair<boost::shared_ptr<const EncodedData>, int> encoded = _queue.front ();
+ while (!_queue.empty() && _queue.front().frame == (_last_written_frame + 1)) {
+ QueueItem qi = _queue.front ();
_queue.pop_front ();
lock.unlock ();
- _film->log()->log (String::compose ("Writer writes %1 to MXF", encoded.second));
- if (encoded.first) {
- libdcp::FrameInfo const fin = _picture_asset_writer->write (encoded.first->data(), encoded.first->size());
- encoded.first->write_info (_film, encoded.second, fin);
- _last_written = encoded.first;
- } else {
+ switch (qi.type) {
+ case QueueItem::FULL:
+ {
+ _film->log()->log (String::compose ("Writer FULL-writes %1 to MXF", qi.frame));
+ libdcp::FrameInfo const fin = _picture_asset_writer->write (qi.encoded->data(), qi.encoded->size());
+ qi.encoded->write_info (_film, qi.frame, fin);
+ _last_written = qi.encoded;
+ break;
+ }
+ case QueueItem::FAKE:
+ _film->log()->log (String::compose ("Writer FAKE-writes %1 to MXF", qi.frame));
+ _picture_asset_writer->fake_write (qi.size);
+ _last_written.reset ();
+ break;
+ case QueueItem::REPEAT:
+ {
+ _film->log()->log (String::compose ("Writer REPEAT-writes %1 to MXF", qi.frame));
libdcp::FrameInfo const fin = _picture_asset_writer->write (_last_written->data(), _last_written->size());
- _last_written->write_info (_film, encoded.second, fin);
+ _last_written->write_info (_film, qi.frame, fin);
+ break;
+ }
}
lock.lock ();
while (_queue.size() > _maximum_frames_in_memory) {
/* Too many frames in memory which can't yet be written to the stream.
- Put some to disk.
+ Put some in our pending list (and write FULL queue items' data to disk)
*/
- pair<boost::shared_ptr<const EncodedData>, int> encoded = _queue.back ();
+ QueueItem qi = _queue.back ();
_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 ();
+ if (qi.type == QueueItem::FULL) {
+ lock.unlock ();
+ _film->log()->log (String::compose ("Writer full (awaiting %1); pushes %2 to disk", _last_written_frame + 1, qi.frame));
+ qi.encoded->write (_film, qi.frame);
+ lock.lock ();
+ qi.encoded.reset ();
+ }
- _pending.push_back (encoded.second);
+ _pending.push_back (qi);
}
while (_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<const EncodedData> encoded;
- if (boost::filesystem::exists (_film->j2c_path (fetch, false))) {
- /* It's an actual frame (not a repeat-last); load it in */
- encoded.reset (new EncodedData (_film->j2c_path (fetch, false)));
+ QueueItem qi = _pending.front ();
+
+ if (qi.type == QueueItem::FULL) {
+ lock.unlock ();
+ _film->log()->log (String::compose ("Writer pulls %1 back from disk", qi.frame));
+ shared_ptr<const EncodedData> encoded;
+ qi.encoded.reset (new EncodedData (_film->j2c_path (qi.frame, false)));
+ lock.lock ();
}
- lock.lock ();
- _queue.push_back (make_pair (encoded, fetch));
- _pending.remove (fetch);
+ _queue.push_back (qi);
+ _pending.remove (qi);
}
}
Writer::repeat (int f)
{
boost::mutex::scoped_lock lock (_mutex);
- _queue.push_back (make_pair (shared_ptr<const EncodedData> (), f));
+
+ QueueItem qi;
+ qi.type = QueueItem::REPEAT;
+ qi.frame = f;
+
+ _queue.push_back (qi);
+
+ _condition.notify_all ();
}
+
void
Writer::check_existing_picture_mxf ()
{
+ /* Try to open the existing MXF */
boost::filesystem::path p;
p /= _film->video_mxf_dir ();
p /= _film->video_mxf_filename ();
- if (!boost::filesystem::exists (p)) {
- return;
- }
-
- /* Try to open the picture MXF */
FILE* mxf = fopen (p.string().c_str(), "rb");
if (!mxf) {
return;
/* Read the data from the MXF and hash it */
fseek (mxf, info.offset, SEEK_SET);
- uint8_t* data = new uint8_t[info.length];
- fread (data, 1, info.length, mxf);
- string const existing_hash = md5_digest (data, info.length);
- delete[] data;
+ EncodedData data (info.size);
+ fread (data.data(), 1, data.size(), mxf);
+ string const existing_hash = md5_digest (data.data(), data.size());
if (existing_hash != info.hash) {
- cout << "frame " << _first_nonexistant_frame << " failed hash check.\n";
+ _film->log()->log (String::compose ("Existing frame %1 failed hash check", _first_nonexistant_frame));
break;
}
- cout << "frame " << _first_nonexistant_frame << " ok.\n";
+ _film->log()->log (String::compose ("Have existing frame %1", _first_nonexistant_frame));
++_first_nonexistant_frame;
}
fclose (mxf);
}
+/** @return true if the fake write succeeded, otherwise false */
+bool
+Writer::can_fake_write (int frame) const
+{
+ return (frame != 0 && frame < _first_nonexistant_frame);
+}
+
+
+bool
+operator< (QueueItem const & a, QueueItem const & b)
+{
+ return a.frame < b.frame;
+}
+
+bool
+operator== (QueueItem const & a, QueueItem const & b)
+{
+ return a.frame == b.frame;
+}
projects / dcpomatic.git / commitdiff