Merge master.
[dcpomatic.git] / src / lib / writer.cc
index 9410dd565b4a9ba963cda63af72aea763c489511..6262525c85d3a5777ead7a9dda416d7752622d52 100644 (file)
 #include <dcp/reel_mono_picture_asset.h>
 #include <dcp/reel_stereo_picture_asset.h>
 #include <dcp/reel_sound_asset.h>
+#include <dcp/reel_subtitle_asset.h>
 #include <dcp/dcp.h>
 #include <dcp/cpl.h>
+#include <dcp/signer.h>
 #include "writer.h"
 #include "compose.hpp"
 #include "film.h"
 #include "ratio.h"
 #include "log.h"
-#include "dcp_video_frame.h"
+#include "dcp_video.h"
 #include "dcp_content_type.h"
-#include "player.h"
 #include "audio_mapping.h"
 #include "config.h"
 #include "job.h"
 #include "cross.h"
 #include "audio_buffers.h"
+#include "md5_digester.h"
+#include "encoded_data.h"
+#include "version.h"
 
 #include "i18n.h"
 
 #define LOG_GENERAL(...) _film->log()->log (String::compose (__VA_ARGS__), Log::TYPE_GENERAL);
 #define LOG_TIMING(...) _film->log()->microsecond_log (String::compose (__VA_ARGS__), Log::TYPE_TIMING);
 #define LOG_WARNING_NC(...) _film->log()->log (__VA_ARGS__, Log::TYPE_WARNING);
+#define LOG_ERROR(...) _film->log()->log (String::compose (__VA_ARGS__), Log::TYPE_ERROR);
 
 /* OS X strikes again */
 #undef set_key
@@ -57,7 +62,6 @@ using std::pair;
 using std::string;
 using std::list;
 using std::cout;
-using std::stringstream;
 using boost::shared_ptr;
 using boost::weak_ptr;
 using boost::dynamic_pointer_cast;
@@ -122,6 +126,11 @@ Writer::Writer (shared_ptr<const Film> f, weak_ptr<Job> j)
                _sound_mxf_writer = _sound_mxf->start_write (_film->directory() / _film->audio_mxf_filename(), _film->interop() ? dcp::INTEROP : dcp::SMPTE);
        }
 
+       /* Check that the signer is OK if we need one */
+       if (_film->is_signed() && !Config::instance()->signer()->valid ()) {
+               throw InvalidSignerError ();
+       }
+
        _thread = new boost::thread (boost::bind (&Writer::thread, this));
 
        job->sub (_("Encoding image data"));
@@ -138,6 +147,7 @@ Writer::write (shared_ptr<const EncodedData> encoded, int frame, Eyes eyes)
        boost::mutex::scoped_lock lock (_mutex);
 
        while (_queued_full_in_memory > _maximum_frames_in_memory) {
+               /* The queue is too big; wait until that is sorted out */
                _full_condition.wait (lock);
        }
 
@@ -159,7 +169,8 @@ Writer::write (shared_ptr<const EncodedData> encoded, int frame, Eyes eyes)
                _queue.push_back (qi);
                ++_queued_full_in_memory;
        }
-       
+
+       /* Now there's something to do: wake anything wait()ing on _empty_condition */
        _empty_condition.notify_all ();
 }
 
@@ -169,6 +180,7 @@ Writer::fake_write (int frame, Eyes eyes)
        boost::mutex::scoped_lock lock (_mutex);
 
        while (_queued_full_in_memory > _maximum_frames_in_memory) {
+               /* The queue is too big; wait until that is sorted out */
                _full_condition.wait (lock);
        }
        
@@ -190,6 +202,7 @@ Writer::fake_write (int frame, Eyes eyes)
                _queue.push_back (qi);
        }
 
+       /* Now there's something to do: wake anything wait()ing on _empty_condition */
        _empty_condition.notify_all ();
 }
 
@@ -236,16 +249,18 @@ void
 Writer::thread ()
 try
 {
-       while (1)
+       while (true)
        {
                boost::mutex::scoped_lock lock (_mutex);
 
-               while (1) {
+               while (true) {
                        
                        if (_finish || _queued_full_in_memory > _maximum_frames_in_memory || have_sequenced_image_at_queue_head ()) {
+                               /* We've got something to do: go and do it */
                                break;
                        }
 
+                       /* Nothing to do: wait until something happens which may indicate that we do */
                        LOG_TIMING (N_("writer sleeps with a queue of %1"), _queue.size());
                        _empty_condition.wait (lock);
                        LOG_TIMING (N_("writer wakes with a queue of %1"), _queue.size());
@@ -335,6 +350,7 @@ try
                        --_queued_full_in_memory;
                }
 
+               /* The queue has probably just gone down a bit; notify anything wait()ing on _full_condition */
                _full_condition.notify_all ();
        }
 }
@@ -391,9 +407,12 @@ Writer::finish ()
        boost::system::error_code ec;
        boost::filesystem::create_hard_link (video_from, video_to, ec);
        if (ec) {
-               /* hard link failed; copy instead */
-               boost::filesystem::copy_file (video_from, video_to);
-               LOG_WARNING_NC ("Hard-link failed; fell back to copying");
+               LOG_WARNING_NC ("Hard-link failed; copying instead");
+               boost::filesystem::copy_file (video_from, video_to, ec);
+               if (ec) {
+                       LOG_ERROR ("Failed to copy video file from %1 to %2 (%3)", video_from.string(), video_to.string(), ec.message ());
+                       throw FileError (ec.message(), video_from);
+               }
        }
 
        _picture_mxf->set_file (video_to);
@@ -444,6 +463,20 @@ Writer::finish ()
                reel->add (shared_ptr<dcp::ReelSoundAsset> (new dcp::ReelSoundAsset (_sound_mxf, 0)));
                dcp.add (_sound_mxf);
        }
+
+       if (_subtitle_content) {
+               _subtitle_content->write_xml (_film->dir (_film->dcp_name ()) / _film->subtitle_xml_filename ());
+               reel->add (shared_ptr<dcp::ReelSubtitleAsset> (
+                                  new dcp::ReelSubtitleAsset (
+                                          _subtitle_content,
+                                          dcp::Fraction (_film->video_frame_rate(), 1),
+                                          _picture_mxf->intrinsic_duration (),
+                                          0
+                                          )
+                                  ));
+               
+               dcp.add (_subtitle_content);
+       }
        
        cpl->add (reel);
 
@@ -458,10 +491,21 @@ Writer::finish ()
                _sound_mxf->hash (boost::bind (&Job::set_progress, job.get(), _1, false));
        }
 
-       dcp::XMLMetadata meta = Config::instance()->dcp_metadata ();
+       dcp::XMLMetadata meta;
+       meta.issuer = Config::instance()->dcp_issuer ();
+       meta.creator = String::compose ("DCP-o-matic %1 %2", dcpomatic_version, dcpomatic_git_commit);
        meta.set_issue_date_now ();
 
-       dcp.write_xml (_film->interop () ? dcp::INTEROP : dcp::SMPTE, meta, _film->is_signed() ? make_signer () : shared_ptr<const dcp::Signer> ());
+       shared_ptr<const dcp::Signer> signer;
+       if (_film->is_signed ()) {
+               signer = Config::instance()->signer ();
+               /* We did check earlier, but check again here to be on the safe side */
+               if (!signer->valid ()) {
+                       throw InvalidSignerError ();
+               }
+       }
+
+       dcp.write_xml (_film->interop () ? dcp::INTEROP : dcp::SMPTE, meta, signer);
 
        LOG_GENERAL (
                N_("Wrote %1 FULL, %2 FAKE, %3 pushed to disk"), _full_written, _fake_written, _pushed_to_disk
@@ -493,9 +537,10 @@ Writer::check_existing_picture_mxf_frame (FILE* mxf, int f, Eyes eyes)
                LOG_GENERAL ("Existing frame %1 is incomplete", f);
                return false;
        }
-       
-       string const existing_hash = md5_digest (data.data(), data.size());
-       if (existing_hash != info.hash) {
+
+       MD5Digester digester;
+       digester.add (data.data(), data.size());
+       if (digester.get() != info.hash) {
                LOG_GENERAL ("Existing frame %1 failed hash check", f);
                return false;
        }
@@ -521,7 +566,7 @@ Writer::check_existing_picture_mxf ()
                ++N;
        }
 
-       while (1) {
+       while (true) {
 
                shared_ptr<Job> job = _job.lock ();
                assert (job);
@@ -562,6 +607,24 @@ Writer::can_fake_write (int frame) const
        return (frame != 0 && frame < _first_nonexistant_frame);
 }
 
+void
+Writer::write (PlayerSubtitles subs)
+{
+       if (subs.text.empty ()) {
+               return;
+       }
+       
+       if (!_subtitle_content) {
+               _subtitle_content.reset (
+                       new dcp::SubtitleContent (_film->name(), _film->isdcf_metadata().subtitle_language)
+                       );
+       }
+       
+       for (list<dcp::SubtitleString>::const_iterator i = subs.text.begin(); i != subs.text.end(); ++i) {
+               _subtitle_content->add (*i);
+       }
+}
+
 bool
 operator< (QueueItem const & a, QueueItem const & b)
 {