*/
/** @file src/transcoder.cc
- * @brief A class which takes a FilmState and some Options, then uses those to transcode a Film.
+ * @brief A class which takes a Film and some Options, then uses those to transcode the film.
*
* A decoder is selected according to the content type, and the encoder can be specified
* as a parameter to the constructor.
*/
#include <iostream>
-#include <sigc++/signal.h>
+#include <boost/signals2.hpp>
#include "transcoder.h"
#include "encoder.h"
#include "decoder_factory.h"
+#include "film.h"
+#include "matcher.h"
+#include "delay_line.h"
+#include "options.h"
+#include "gain.h"
+#include "video_decoder.h"
+#include "audio_decoder.h"
+#include "trimmer.h"
-using namespace std;
-using namespace boost;
+using std::string;
+using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
/** Construct a transcoder using a Decoder that we create and a supplied Encoder.
- * @param s FilmState of Film that we are transcoding.
- * @param o Options.
+ * @param f Film that we are transcoding.
+ * @param o Decode options.
* @param j Job that we are running under, or 0.
- * @param l Log that we can write to.
* @param e Encoder to use.
*/
-Transcoder::Transcoder (shared_ptr<const FilmState> s, shared_ptr<const Options> o, Job* j, Log* l, shared_ptr<Encoder> e)
+Transcoder::Transcoder (shared_ptr<Film> f, DecodeOptions o, Job* j, shared_ptr<Encoder> e)
: _job (j)
, _encoder (e)
- , _decoder (decoder_factory (s, o, j, l))
+ , _decoders (decoder_factory (f, o))
{
assert (_encoder);
+
+ shared_ptr<AudioStream> st = f->audio_stream();
+ if (st && st->sample_rate ()) {
+ _matcher.reset (new Matcher (f->log(), st->sample_rate(), f->source_frame_rate()));
+ }
+ _delay_line.reset (new DelayLine (f->log(), f->audio_delay() / 1000.0f));
+ _gain.reset (new Gain (f->log(), f->audio_gain()));
+
+ int const sr = st ? st->sample_rate() : 0;
+ int const trim_start = f->trim_type() == Film::ENCODE ? f->trim_start() : 0;
+ int const trim_end = f->trim_type() == Film::ENCODE ? f->trim_end() : 0;
+ _trimmer.reset (new Trimmer (
+ f->log(), trim_start, trim_end, f->length().get_value_or(0),
+ sr, f->source_frame_rate(), f->dcp_frame_rate()
+ ));
+
+ /* Set up the decoder to use the film's set streams */
+ _decoders.video->set_subtitle_stream (f->subtitle_stream ());
+ if (f->audio_stream ()) {
+ _decoders.audio->set_audio_stream (f->audio_stream ());
+ }
+
+ _decoders.video->connect_video (_delay_line);
+ if (_matcher) {
+ _delay_line->connect_video (_matcher);
+ _matcher->connect_video (_trimmer);
+ } else {
+ _delay_line->connect_video (_trimmer);
+ }
+ _trimmer->connect_video (_encoder);
- _decoder->Video.connect (sigc::mem_fun (*e, &Encoder::process_video));
- _decoder->Audio.connect (sigc::mem_fun (*e, &Encoder::process_audio));
+ _decoders.audio->connect_audio (_delay_line);
+ if (_matcher) {
+ _delay_line->connect_audio (_matcher);
+ _matcher->connect_audio (_gain);
+ } else {
+ _delay_line->connect_audio (_gain);
+ }
+ _gain->connect_audio (_trimmer);
+ _trimmer->connect_audio (_encoder);
}
/** Run the decoder, passing its output to the encoder, until the decoder
void
Transcoder::go ()
{
- _encoder->process_begin (_decoder->audio_channel_layout());
- try {
- _decoder->go ();
- } catch (...) {
- /* process_end() is important as the decoder may have worker
- threads that need to be cleaned up.
- */
- _encoder->process_end ();
- throw;
- }
+ _encoder->process_begin ();
+ bool done[2] = { false, false };
+
+ while (1) {
+ if (!done[0]) {
+ done[0] = _decoders.video->pass ();
+ if (_job) {
+ _decoders.video->set_progress (_job);
+ }
+ }
+
+ if (!done[1] && _decoders.audio && dynamic_pointer_cast<Decoder> (_decoders.audio) != dynamic_pointer_cast<Decoder> (_decoders.video)) {
+ done[1] = _decoders.audio->pass ();
+ } else {
+ done[1] = true;
+ }
+
+ if (done[0] && done[1]) {
+ break;
+ }
+ }
+
+ _delay_line->process_end ();
+ if (_matcher) {
+ _matcher->process_end ();
+ }
+ _gain->process_end ();
_encoder->process_end ();
}