#include "ab_transcode_job.h"
#include "transcode_job.h"
#include "scp_dcp_job.h"
-#include "make_dcp_job.h"
#include "log.h"
#include "options.h"
#include "exceptions.h"
#include "scaler.h"
#include "decoder_factory.h"
#include "config.h"
-#include "check_hashes_job.h"
#include "version.h"
#include "ui_signaller.h"
#include "video_decoder.h"
#include "audio_decoder.h"
#include "external_audio_decoder.h"
+#include "analyse_audio_job.h"
using std::string;
using std::stringstream;
using std::setfill;
using std::min;
using std::make_pair;
-using std::cout;
using boost::shared_ptr;
using boost::lexical_cast;
using boost::to_upper_copy;
using boost::ends_with;
using boost::starts_with;
using boost::optional;
+using libdcp::Size;
-int const Film::state_version = 1;
+int const Film::state_version = 3;
/** Construct a Film object in a given directory, reading any metadata
* file that exists in that directory. An exception will be thrown if
, _dcp_content_type (0)
, _format (0)
, _scaler (Scaler::from_id ("bicubic"))
- , _dcp_trim_start (0)
- , _dcp_trim_end (0)
+ , _trim_start (0)
+ , _trim_end (0)
, _dcp_ab (false)
, _use_content_audio (true)
, _audio_gain (0)
, _with_subtitles (false)
, _subtitle_offset (0)
, _subtitle_scale (1)
+ , _colour_lut (0)
+ , _j2k_bandwidth (200000000)
+ , _dci_metadata (Config::instance()->default_dci_metadata ())
, _frames_per_second (0)
, _dirty (false)
{
+ set_dci_date_today ();
+
/* Make state.directory a complete path without ..s (where possible)
(Code swiped from Adam Bowen on stackoverflow)
*/
}
_log = new FileLog (file ("log"));
- set_dci_date_today ();
}
Film::Film (Film const & o)
, _crop (o._crop)
, _filters (o._filters)
, _scaler (o._scaler)
- , _dcp_trim_start (o._dcp_trim_start)
- , _dcp_trim_end (o._dcp_trim_end)
+ , _trim_start (o._trim_start)
+ , _trim_end (o._trim_end)
, _dcp_ab (o._dcp_ab)
, _content_audio_stream (o._content_audio_stream)
, _external_audio (o._external_audio)
, _with_subtitles (o._with_subtitles)
, _subtitle_offset (o._subtitle_offset)
, _subtitle_scale (o._subtitle_scale)
- , _audio_language (o._audio_language)
- , _subtitle_language (o._subtitle_language)
- , _territory (o._territory)
- , _rating (o._rating)
- , _studio (o._studio)
- , _facility (o._facility)
- , _package_type (o._package_type)
+ , _colour_lut (o._colour_lut)
+ , _j2k_bandwidth (o._j2k_bandwidth)
+ , _dci_metadata (o._dci_metadata)
+ , _dci_date (o._dci_date)
, _size (o._size)
, _length (o._length)
+ , _dcp_intrinsic_duration (o._dcp_intrinsic_duration)
, _content_digest (o._content_digest)
, _content_audio_streams (o._content_audio_streams)
, _external_audio_stream (o._external_audio_stream)
{
delete _log;
}
-
-/** @return The path to the directory to write JPEG2000 files to */
+
string
-Film::j2k_dir () const
+Film::video_state_identifier () const
{
- assert (format());
-
- boost::filesystem::path p;
-
- /* Start with j2c */
- p /= "j2c";
+ assert (format ());
pair<string, string> f = Filter::ffmpeg_strings (filters());
- /* Write stuff to specify the filter / post-processing settings that are in use,
- so that we don't get confused about J2K files generated using different
- settings.
- */
stringstream s;
s << format()->id()
<< "_" << content_digest()
<< "_" << crop().left << "_" << crop().right << "_" << crop().top << "_" << crop().bottom
<< "_" << f.first << "_" << f.second
- << "_" << scaler()->id();
-
- p /= s.str ();
+ << "_" << scaler()->id()
+ << "_" << j2k_bandwidth()
+ << "_" << boost::lexical_cast<int> (colour_lut());
- /* Similarly for the A/B case */
if (dcp_ab()) {
- stringstream s;
pair<string, string> fa = Filter::ffmpeg_strings (Config::instance()->reference_filters());
s << "ab_" << Config::instance()->reference_scaler()->id() << "_" << fa.first << "_" << fa.second;
- p /= s.str ();
}
-
+
+ return s.str ();
+}
+
+/** @return The path to the directory to write video frame info files to */
+string
+Film::info_dir () const
+{
+ boost::filesystem::path p;
+ p /= "info";
+ p /= video_state_identifier ();
return dir (p.string());
}
-/** Add suitable Jobs to the JobManager to create a DCP for this Film.
- * @param true to transcode, false to use the WAV and J2K files that are already there.
- */
+string
+Film::video_mxf_dir () const
+{
+ boost::filesystem::path p;
+ return dir ("video");
+}
+
+string
+Film::video_mxf_filename () const
+{
+ return video_state_identifier() + ".mxf";
+}
+
+string
+Film::audio_analysis_path () const
+{
+ boost::filesystem::path p;
+ p /= "analysis";
+ p /= content_digest();
+ return file (p.string ());
+}
+
+/** Add suitable Jobs to the JobManager to create a DCP for this Film */
void
-Film::make_dcp (bool transcode)
+Film::make_dcp ()
{
set_dci_date_today ();
gethostname (buffer, sizeof (buffer));
log()->log (String::compose ("Starting to make DCP on %1", buffer));
}
-
+
+ log()->log (String::compose ("Content is %1; type %2", content_path(), (content_type() == STILL ? "still" : "video")));
+ if (length()) {
+ log()->log (String::compose ("Content length %1", length().get()));
+ }
+ log()->log (String::compose ("Content digest %1", content_digest()));
+ log()->log (String::compose ("%1 threads", Config::instance()->num_local_encoding_threads()));
+ log()->log (String::compose ("J2K bandwidth %1", j2k_bandwidth()));
+#ifdef DVDOMATIC_DEBUG
+ log()->log ("DVD-o-matic built in debug mode.");
+#else
+ log()->log ("DVD-o-matic built in optimised mode.");
+#endif
+#ifdef LIBDCP_DEBUG
+ log()->log ("libdcp built in debug mode.");
+#else
+ log()->log ("libdcp built in optimised mode.");
+#endif
+ pair<string, int> const c = cpu_info ();
+ log()->log (String::compose ("CPU: %1, %2 processors", c.first, c.second));
+
if (format() == 0) {
throw MissingSettingError ("format");
}
throw MissingSettingError ("name");
}
- shared_ptr<EncodeOptions> oe (new EncodeOptions (j2k_dir(), ".j2c", dir ("wavs")));
- oe->out_size = format()->dcp_size ();
- oe->padding = format()->dcp_padding (shared_from_this ());
- if (dcp_length ()) {
- oe->video_range = make_pair (dcp_trim_start(), dcp_trim_start() + dcp_length().get());
- if (audio_stream()) {
- oe->audio_range = make_pair (
-
- video_frames_to_audio_frames (
- oe->video_range.get().first,
- dcp_audio_sample_rate (audio_stream()->sample_rate()),
- dcp_frame_rate (frames_per_second()).frames_per_second
- ),
-
- video_frames_to_audio_frames (
- oe->video_range.get().second,
- dcp_audio_sample_rate (audio_stream()->sample_rate()),
- dcp_frame_rate (frames_per_second()).frames_per_second
- )
- );
- }
-
- }
-
- oe->video_skip = dcp_frame_rate (frames_per_second()).skip;
-
- shared_ptr<DecodeOptions> od (new DecodeOptions);
- od->decode_subtitles = with_subtitles ();
+ DecodeOptions od;
+ od.decode_subtitles = with_subtitles ();
shared_ptr<Job> r;
- if (transcode) {
- if (dcp_ab()) {
- r = JobManager::instance()->add (shared_ptr<Job> (new ABTranscodeJob (shared_from_this(), od, oe, shared_ptr<Job> ())));
- } else {
- r = JobManager::instance()->add (shared_ptr<Job> (new TranscodeJob (shared_from_this(), od, oe, shared_ptr<Job> ())));
- }
+ if (dcp_ab()) {
+ r = JobManager::instance()->add (shared_ptr<Job> (new ABTranscodeJob (shared_from_this(), od)));
+ } else {
+ r = JobManager::instance()->add (shared_ptr<Job> (new TranscodeJob (shared_from_this(), od)));
}
+}
- r = JobManager::instance()->add (shared_ptr<Job> (new CheckHashesJob (shared_from_this(), od, oe, r)));
- JobManager::instance()->add (shared_ptr<Job> (new MakeDCPJob (shared_from_this(), oe, r)));
+/** Start a job to analyse the audio of our content file */
+void
+Film::analyse_audio ()
+{
+ if (_analyse_audio_job) {
+ return;
+ }
+
+ _analyse_audio_job.reset (new AnalyseAudioJob (shared_from_this()));
+ _analyse_audio_job->Finished.connect (bind (&Film::analyse_audio_finished, this));
+ JobManager::instance()->add (_analyse_audio_job);
}
/** Start a job to examine our content file */
return;
}
- _examine_content_job.reset (new ExamineContentJob (shared_from_this(), shared_ptr<Job> ()));
+ _examine_content_job.reset (new ExamineContentJob (shared_from_this()));
_examine_content_job->Finished.connect (bind (&Film::examine_content_finished, this));
JobManager::instance()->add (_examine_content_job);
}
void
-Film::examine_content_finished ()
+Film::analyse_audio_finished ()
{
- _examine_content_job.reset ();
+ ensure_ui_thread ();
+ _analyse_audio_job.reset ();
+
+ AudioAnalysisFinished ();
}
-/** @return full paths to any audio files that this Film has */
-vector<string>
-Film::audio_files () const
+void
+Film::examine_content_finished ()
{
- vector<string> f;
- for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator (dir("wavs")); i != boost::filesystem::directory_iterator(); ++i) {
- f.push_back (i->path().string ());
- }
-
- return f;
+ _examine_content_job.reset ();
}
/** Start a job to send our DCP to the configured TMS */
void
Film::send_dcp_to_tms ()
{
- shared_ptr<Job> j (new SCPDCPJob (shared_from_this(), shared_ptr<Job> ()));
+ shared_ptr<Job> j (new SCPDCPJob (shared_from_this()));
JobManager::instance()->add (j);
}
}
int N = 0;
- for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator (j2k_dir ()); i != boost::filesystem::directory_iterator(); ++i) {
+ for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator (info_dir ()); i != boost::filesystem::directory_iterator(); ++i) {
++N;
boost::this_thread::interruption_point ();
}
f << "content " << _content << "\n";
f << "trust_content_header " << (_trust_content_header ? "1" : "0") << "\n";
if (_dcp_content_type) {
- f << "dcp_content_type " << _dcp_content_type->pretty_name () << "\n";
+ f << "dcp_content_type " << _dcp_content_type->dci_name () << "\n";
}
if (_format) {
f << "format " << _format->as_metadata () << "\n";
f << "filter " << (*i)->id () << "\n";
}
f << "scaler " << _scaler->id () << "\n";
- f << "dcp_trim_start " << _dcp_trim_start << "\n";
- f << "dcp_trim_end " << _dcp_trim_end << "\n";
+ f << "trim_start " << _trim_start << "\n";
+ f << "trim_end " << _trim_end << "\n";
f << "dcp_ab " << (_dcp_ab ? "1" : "0") << "\n";
if (_content_audio_stream) {
f << "selected_content_audio_stream " << _content_audio_stream->to_string() << "\n";
f << "with_subtitles " << _with_subtitles << "\n";
f << "subtitle_offset " << _subtitle_offset << "\n";
f << "subtitle_scale " << _subtitle_scale << "\n";
- f << "audio_language " << _audio_language << "\n";
- f << "subtitle_language " << _subtitle_language << "\n";
- f << "territory " << _territory << "\n";
- f << "rating " << _rating << "\n";
- f << "studio " << _studio << "\n";
- f << "facility " << _facility << "\n";
- f << "package_type " << _package_type << "\n";
-
+ f << "colour_lut " << _colour_lut << "\n";
+ f << "j2k_bandwidth " << _j2k_bandwidth << "\n";
+ _dci_metadata.write (f);
+ f << "dci_date " << boost::gregorian::to_iso_string (_dci_date) << "\n";
f << "width " << _size.width << "\n";
f << "height " << _size.height << "\n";
f << "length " << _length.get_value_or(0) << "\n";
+ f << "dcp_intrinsic_duration " << _dcp_intrinsic_duration.get_value_or(0) << "\n";
f << "content_digest " << _content_digest << "\n";
for (vector<shared_ptr<AudioStream> >::const_iterator i = _content_audio_streams.begin(); i != _content_audio_streams.end(); ++i) {
ifstream f (file ("metadata").c_str());
if (!f.good()) {
- throw OpenFileError (file("metadata"));
+ throw OpenFileError (file ("metadata"));
}
multimap<string, string> kv = read_key_value (f);
} else if (k == "trust_content_header") {
_trust_content_header = (v == "1");
} else if (k == "dcp_content_type") {
- _dcp_content_type = DCPContentType::from_pretty_name (v);
+ if (version < 3) {
+ _dcp_content_type = DCPContentType::from_pretty_name (v);
+ } else {
+ _dcp_content_type = DCPContentType::from_dci_name (v);
+ }
} else if (k == "format") {
_format = Format::from_metadata (v);
} else if (k == "left_crop") {
_filters.push_back (Filter::from_id (v));
} else if (k == "scaler") {
_scaler = Scaler::from_id (v);
- } else if (k == "dcp_trim_start") {
- _dcp_trim_start = atoi (v.c_str ());
- } else if (k == "dcp_trim_end") {
- _dcp_trim_end = atoi (v.c_str ());
+ } else if ( ((!version || version < 2) && k == "dcp_trim_start") || k == "trim_start") {
+ _trim_start = atoi (v.c_str ());
+ } else if ( ((!version || version < 2) && k == "dcp_trim_end") || k == "trim_end") {
+ _trim_end = atoi (v.c_str ());
} else if (k == "dcp_ab") {
_dcp_ab = (v == "1");
} else if (k == "selected_content_audio_stream" || (!version && k == "selected_audio_stream")) {
_subtitle_offset = atoi (v.c_str ());
} else if (k == "subtitle_scale") {
_subtitle_scale = atof (v.c_str ());
- } else if (k == "audio_language") {
- _audio_language = v;
- } else if (k == "subtitle_language") {
- _subtitle_language = v;
- } else if (k == "territory") {
- _territory = v;
- } else if (k == "rating") {
- _rating = v;
- } else if (k == "studio") {
- _studio = v;
- } else if (k == "facility") {
- _facility = v;
- } else if (k == "package_type") {
- _package_type = v;
+ } else if (k == "colour_lut") {
+ _colour_lut = atoi (v.c_str ());
+ } else if (k == "j2k_bandwidth") {
+ _j2k_bandwidth = atoi (v.c_str ());
+ } else if (k == "dci_date") {
+ _dci_date = boost::gregorian::from_undelimited_string (v);
}
+
+ _dci_metadata.read (k, v);
/* Cached stuff */
if (k == "width") {
if (vv) {
_length = vv;
}
+ } else if (k == "dcp_intrinsic_duration") {
+ int const vv = atoi (v.c_str ());
+ if (vv) {
+ _dcp_intrinsic_duration = vv;
+ }
} else if (k == "content_digest") {
_content_digest = v;
} else if (k == "content_audio_stream" || (!version && k == "audio_stream")) {
_dirty = false;
}
-Size
-Film::cropped_size (Size s) const
+libdcp::Size
+Film::cropped_size (libdcp::Size s) const
{
boost::mutex::scoped_lock lm (_state_mutex);
s.width -= _crop.left + _crop.right;
Film::dir (string d) const
{
boost::mutex::scoped_lock lm (_directory_mutex);
+
boost::filesystem::path p;
p /= _directory;
p /= d;
+
boost::filesystem::create_directories (p);
+
return p.string ();
}
/** Given a file or directory name, return its full path within the Film's directory.
* _directory_mutex must not be locked on entry.
+ * Any required parent directories will be created.
*/
string
Film::file (string f) const
{
boost::mutex::scoped_lock lm (_directory_mutex);
+
boost::filesystem::path p;
p /= _directory;
p /= f;
+
+ boost::filesystem::create_directories (p.parent_path ());
+
return p.string ();
}
/* Resample to a DCI-approved sample rate */
double t = dcp_audio_sample_rate (audio_stream()->sample_rate());
- DCPFrameRate dfr = dcp_frame_rate (frames_per_second ());
+ DCPFrameRate dfr (frames_per_second ());
- /* Compensate for the fact that video will be rounded to the
- nearest integer number of frames per second.
+ /* Compensate if the DCP is being run at a different frame rate
+ to the source; that is, if the video is run such that it will
+ look different in the DCP compared to the source (slower or faster).
+ skip/repeat doesn't come into effect here.
*/
- if (dfr.run_fast) {
- t *= _frames_per_second * dfr.skip / dfr.frames_per_second;
+
+ if (dfr.change_speed) {
+ t *= _frames_per_second * dfr.factor() / dfr.frames_per_second;
}
return rint (t);
}
-boost::optional<int>
-Film::dcp_length () const
+int
+Film::still_duration_in_frames () const
{
- if (content_type() == STILL) {
- return _still_duration * frames_per_second();
- }
-
- if (!length()) {
- return boost::optional<int> ();
- }
-
- return length().get() - dcp_trim_start() - dcp_trim_end();
+ return still_duration() * frames_per_second();
}
/** @return a DCI-compliant name for a DCP of this film */
string
-Film::dci_name () const
+Film::dci_name (bool if_created_now) const
{
stringstream d;
d << format()->dci_name() << "_";
}
- if (!audio_language().empty ()) {
- d << audio_language();
- if (!subtitle_language().empty() && with_subtitles()) {
- d << "-" << subtitle_language();
+ DCIMetadata const dm = dci_metadata ();
+
+ if (!dm.audio_language.empty ()) {
+ d << dm.audio_language;
+ if (!dm.subtitle_language.empty() && with_subtitles()) {
+ d << "-" << dm.subtitle_language;
} else {
d << "-XX";
}
d << "_";
}
- if (!territory().empty ()) {
- d << territory();
- if (!rating().empty ()) {
- d << "-" << rating();
+ if (!dm.territory.empty ()) {
+ d << dm.territory;
+ if (!dm.rating.empty ()) {
+ d << "-" << dm.rating;
}
d << "_";
}
d << "2K_";
- if (!studio().empty ()) {
- d << studio() << "_";
+ if (!dm.studio.empty ()) {
+ d << dm.studio << "_";
}
- d << boost::gregorian::to_iso_string (_dci_date) << "_";
+ if (if_created_now) {
+ d << boost::gregorian::to_iso_string (boost::gregorian::day_clock::local_day ()) << "_";
+ } else {
+ d << boost::gregorian::to_iso_string (_dci_date) << "_";
+ }
- if (!facility().empty ()) {
- d << facility() << "_";
+ if (!dm.facility.empty ()) {
+ d << dm.facility << "_";
}
- if (!package_type().empty ()) {
- d << package_type();
+ if (!dm.package_type.empty ()) {
+ d << dm.package_type;
}
return d.str ();
/** @return name to give the DCP */
string
-Film::dcp_name () const
+Film::dcp_name (bool if_created_now) const
{
if (use_dci_name()) {
- return dci_name ();
+ return dci_name (if_created_now);
}
return name();
{
string check = directory ();
-#if BOOST_FILESYSTEM_VERSION == 3
boost::filesystem::path slash ("/");
string platform_slash = slash.make_preferred().string ();
-#else
-#ifdef DVDOMATIC_WINDOWS
- string platform_slash = "\\";
-#else
- string platform_slash = "/";
-#endif
-#endif
if (!ends_with (check, platform_slash)) {
check += platform_slash;
*/
try {
- shared_ptr<DecodeOptions> o (new DecodeOptions);
- Decoders d = decoder_factory (shared_from_this(), o, 0);
+ Decoders d = decoder_factory (shared_from_this(), DecodeOptions());
set_size (d.video->native_size ());
set_frames_per_second (d.video->frames_per_second ());
set_content_audio_streams (d.audio->audio_streams ());
}
+ {
+ boost::mutex::scoped_lock lm (_state_mutex);
+ _content = c;
+ }
+
+ signal_changed (CONTENT);
+
/* Start off with the first audio and subtitle streams */
if (d.audio && !d.audio->audio_streams().empty()) {
set_content_audio_stream (d.audio->audio_streams().front());
set_subtitle_stream (d.video->subtitle_streams().front());
}
- {
- boost::mutex::scoped_lock lm (_state_mutex);
- _content = c;
- }
-
- signal_changed (CONTENT);
-
examine_content ();
} catch (...) {
}
void
-Film::set_dcp_trim_start (int t)
+Film::set_trim_start (int t)
{
{
boost::mutex::scoped_lock lm (_state_mutex);
- _dcp_trim_start = t;
+ _trim_start = t;
}
- signal_changed (DCP_TRIM_START);
+ signal_changed (TRIM_START);
}
void
-Film::set_dcp_trim_end (int t)
+Film::set_trim_end (int t)
{
{
boost::mutex::scoped_lock lm (_state_mutex);
- _dcp_trim_end = t;
+ _trim_end = t;
}
- signal_changed (DCP_TRIM_END);
+ signal_changed (TRIM_END);
}
void
_external_audio = a;
}
- shared_ptr<DecodeOptions> o (new DecodeOptions);
- shared_ptr<ExternalAudioDecoder> decoder (new ExternalAudioDecoder (shared_from_this(), o, 0));
+ shared_ptr<ExternalAudioDecoder> decoder (new ExternalAudioDecoder (shared_from_this(), DecodeOptions()));
if (decoder->audio_stream()) {
_external_audio_stream = decoder->audio_stream ();
}
}
void
-Film::set_audio_language (string l)
-{
- {
- boost::mutex::scoped_lock lm (_state_mutex);
- _audio_language = l;
- }
- signal_changed (DCI_METADATA);
-}
-
-void
-Film::set_subtitle_language (string l)
+Film::set_colour_lut (int i)
{
{
boost::mutex::scoped_lock lm (_state_mutex);
- _subtitle_language = l;
+ _colour_lut = i;
}
- signal_changed (DCI_METADATA);
-}
-
-void
-Film::set_territory (string t)
-{
- {
- boost::mutex::scoped_lock lm (_state_mutex);
- _territory = t;
- }
- signal_changed (DCI_METADATA);
-}
-
-void
-Film::set_rating (string r)
-{
- {
- boost::mutex::scoped_lock lm (_state_mutex);
- _rating = r;
- }
- signal_changed (DCI_METADATA);
+ signal_changed (COLOUR_LUT);
}
void
-Film::set_studio (string s)
+Film::set_j2k_bandwidth (int b)
{
{
boost::mutex::scoped_lock lm (_state_mutex);
- _studio = s;
+ _j2k_bandwidth = b;
}
- signal_changed (DCI_METADATA);
+ signal_changed (J2K_BANDWIDTH);
}
void
-Film::set_facility (string f)
+Film::set_dci_metadata (DCIMetadata m)
{
{
boost::mutex::scoped_lock lm (_state_mutex);
- _facility = f;
+ _dci_metadata = m;
}
signal_changed (DCI_METADATA);
}
void
-Film::set_package_type (string p)
-{
- {
- boost::mutex::scoped_lock lm (_state_mutex);
- _package_type = p;
- }
- signal_changed (DCI_METADATA);
-}
-
-void
-Film::set_size (Size s)
+Film::set_size (libdcp::Size s)
{
{
boost::mutex::scoped_lock lm (_state_mutex);
_length = boost::none;
}
signal_changed (LENGTH);
-}
+}
+
+void
+Film::set_dcp_intrinsic_duration (int d)
+{
+ {
+ boost::mutex::scoped_lock lm (_state_mutex);
+ _dcp_intrinsic_duration = d;
+ }
+ signal_changed (DCP_INTRINSIC_DURATION);
+}
void
Film::set_content_digest (string d)
return _external_audio_stream;
}
+
+string
+Film::info_path (int f) const
+{
+ boost::filesystem::path p;
+ p /= info_dir ();
+
+ stringstream s;
+ s.width (8);
+ s << setfill('0') << f << ".md5";
+
+ p /= s.str();
+
+ /* info_dir() will already have added any initial bit of the path,
+ so don't call file() on this.
+ */
+ return p.string ();
+}
+
+string
+Film::j2c_path (int f, bool t) const
+{
+ boost::filesystem::path p;
+ p /= "j2c";
+ p /= video_state_identifier ();
+
+ stringstream s;
+ s.width (8);
+ s << setfill('0') << f << ".j2c";
+
+ if (t) {
+ s << ".tmp";
+ }
+
+ p /= s.str();
+ return file (p.string ());
+}
+
+/** Make an educated guess as to whether we have a complete DCP
+ * or not.
+ * @return true if we do.
+ */
+
+bool
+Film::have_dcp () const
+{
+ try {
+ libdcp::DCP dcp (dir (dcp_name()));
+ dcp.read ();
+ } catch (...) {
+ return false;
+ }
+
+ return true;
+}