X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fdecoder.cc;h=3f4cda6eb5a4345595410fe475314f3d24881bd7;hb=82926443230084739cb673a83b2ab1f9d733a07b;hp=73e17e7ead91a8481763b3da63216cfdb9c62c02;hpb=17cea71c34ed6bdba67aac8614572c7511844c2a;p=dcpomatic.git diff --git a/src/lib/decoder.cc b/src/lib/decoder.cc index 73e17e7ea..3f4cda6eb 100644 --- a/src/lib/decoder.cc +++ b/src/lib/decoder.cc @@ -21,154 +21,18 @@ * @brief Parent class for decoders of content. */ -#include -#include -#include #include "film.h" -#include "format.h" -#include "job.h" -#include "options.h" -#include "exceptions.h" -#include "image.h" -#include "util.h" -#include "log.h" #include "decoder.h" -#include "delay_line.h" -#include "subtitle.h" -#include "filter_graph.h" -using std::string; -using std::stringstream; -using std::min; -using std::pair; -using std::list; +#include "i18n.h" + using boost::shared_ptr; -using boost::optional; /** @param f Film. - * @param o Options. - * @param j Job that we are running within, or 0 - * @param minimal true to do the bare minimum of work; just run through the content. Useful for acquiring - * accurate frame counts as quickly as possible. This generates no video or audio output. + * @param o Decode options. */ -Decoder::Decoder (boost::shared_ptr f, boost::shared_ptr o, Job* j) +Decoder::Decoder (shared_ptr f) : _film (f) - , _opt (o) - , _job (j) - , _video_frame (0) -{ - -} - -/** Start decoding */ -void -Decoder::go () -{ - if (_job && !_film->dcp_length()) { - _job->set_progress_unknown (); - } - - while (pass () == false) { - if (_job && _film->dcp_length()) { - _job->set_progress (float (_video_frame) / _film->length().get()); - } - } -} - -/** Called to tell the world that some audio data is ready - * @param audio Audio data. - */ -void -Decoder::process_audio (shared_ptr audio) { - /* Maybe apply gain */ - if (_film->audio_gain() != 0) { - float const linear_gain = pow (10, _film->audio_gain() / 20); - for (int i = 0; i < audio->channels(); ++i) { - for (int j = 0; j < audio->frames(); ++j) { - audio->data(i)[j] *= linear_gain; - } - } - } - - Audio (audio); -} - -/** Called by subclasses to tell the world that some video data is ready. - * We do some post-processing / filtering then emit it for listeners. - * @param frame to decode; caller manages memory. - */ -void -Decoder::process_video (AVFrame* frame) -{ - shared_ptr graph; - - list >::iterator i = _filter_graphs.begin(); - while (i != _filter_graphs.end() && !(*i)->can_process (Size (frame->width, frame->height), (AVPixelFormat) frame->format)) { - ++i; - } - - if (i == _filter_graphs.end ()) { - graph.reset (new FilterGraph (_film, this, _opt->apply_crop, Size (frame->width, frame->height), (AVPixelFormat) frame->format)); - _filter_graphs.push_back (graph); - _film->log()->log (String::compose ("New graph for %1x%2, pixel format %3", frame->width, frame->height, frame->format)); - } else { - graph = *i; - } - - list > images = graph->process (frame); - - for (list >::iterator i = images.begin(); i != images.end(); ++i) { - shared_ptr sub; - if (_timed_subtitle && _timed_subtitle->displayed_at (double (video_frame()) / _film->frames_per_second())) { - sub = _timed_subtitle->subtitle (); - } - emit_video (*i, sub); - } -} - -void -Decoder::repeat_last_video () -{ - if (!_last_image) { - _last_image.reset (new CompactImage (pixel_format(), native_size())); - _last_image->make_black (); - } - - emit_video (_last_image, _last_subtitle); -} - -void -Decoder::emit_video (shared_ptr image, shared_ptr sub) -{ - TIMING ("Decoder emits %1", _video_frame); - Video (image, sub); - ++_video_frame; - - _last_image = image; - _last_subtitle = sub; -} - -void -Decoder::process_subtitle (shared_ptr s) -{ - _timed_subtitle = s; - - if (_timed_subtitle && _opt->apply_crop) { - Position const p = _timed_subtitle->subtitle()->position (); - _timed_subtitle->subtitle()->set_position (Position (p.x - _film->crop().left, p.y - _film->crop().top)); - } -} - -void -Decoder::set_audio_stream (optional s) -{ - _audio_stream = s; -} - -void -Decoder::set_subtitle_stream (optional s) -{ - _subtitle_stream = s; }