X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fvideo_decoder.cc;h=5867ac9257aacc31f8c712039c093f531e636771;hb=0337475d923422f160e000020f320c8c97524a02;hp=58aceb4077cfc4ebfc9fdecc0bf2e2b90ad90681;hpb=4699463e19b2a153d64aeb0e00c62be1157bfc1b;p=dcpomatic.git

diff --git a/src/lib/video_decoder.cc b/src/lib/video_decoder.cc
index 58aceb407..5867ac925 100644
--- a/src/lib/video_decoder.cc
+++ b/src/lib/video_decoder.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -18,10 +18,7 @@
 */
 
 #include "video_decoder.h"
-#include "subtitle.h"
-#include "film.h"
 #include "image.h"
-#include "ratio.h"
 
 #include "i18n.h"
 
@@ -30,122 +27,38 @@ using boost::shared_ptr;
 
 VideoDecoder::VideoDecoder (shared_ptr<const Film> f, shared_ptr<const VideoContent> c)
 	: Decoder (f)
-	, _next_video (0)
 	, _video_content (c)
-	, _frame_rate_conversion (c->video_frame_rate(), f->dcp_video_frame_rate())
-	, _odd (false)
+	, _video_position (0)
 {
 
 }
 
-/** Called by subclasses when some video is ready.
- *  @param image frame to emit.
- *  @param same true if this frame is the same as the last one passed to this call.
- *  @param t Time of the frame within the source.
- */
 void
-VideoDecoder::video (shared_ptr<Image> image, bool same, Time t)
+VideoDecoder::video (shared_ptr<const ImageProxy> image, bool same, VideoContent::Frame frame)
 {
-	if (_frame_rate_conversion.skip && _odd) {
-		_odd = !_odd;
-		return;
+	switch (_video_content->video_frame_type ()) {
+	case VIDEO_FRAME_TYPE_2D:
+		Video (image, EYES_BOTH, PART_WHOLE, same, frame);
+		break;
+	case VIDEO_FRAME_TYPE_3D_ALTERNATE:
+		Video (image, (frame % 2) ? EYES_RIGHT : EYES_LEFT, PART_WHOLE, same, frame / 2);
+		break;
+	case VIDEO_FRAME_TYPE_3D_LEFT_RIGHT:
+		Video (image, EYES_LEFT, PART_LEFT_HALF, same, frame);
+		Video (image, EYES_RIGHT, PART_RIGHT_HALF, same, frame);
+		break;
+	case VIDEO_FRAME_TYPE_3D_TOP_BOTTOM:
+		Video (image, EYES_LEFT, PART_TOP_HALF, same, frame);
+		Video (image, EYES_RIGHT, PART_BOTTOM_HALF, same, frame);
+		break;
+	case VIDEO_FRAME_TYPE_3D_LEFT:
+		Video (image, EYES_LEFT, PART_WHOLE, same, frame);
+		break;
+	case VIDEO_FRAME_TYPE_3D_RIGHT:
+		Video (image, EYES_RIGHT, PART_WHOLE, same, frame);
+		break;
 	}
-
-	image = image->crop (_video_content->crop(), true);
-
-	shared_ptr<const Film> film = _film.lock ();
-	assert (film);
-	
-	libdcp::Size const container_size = _video_container_size.get_value_or (film->container()->size (film->full_frame ()));
-	libdcp::Size const image_size = _video_content->ratio()->size (container_size);
-	
-	shared_ptr<Image> out = image->scale_and_convert_to_rgb (image_size, film->scaler(), true);
-
-	shared_ptr<Subtitle> sub;
-	if (_timed_subtitle && _timed_subtitle->displayed_at (t)) {
-		sub = _timed_subtitle->subtitle ();
-	}
-
-	if (sub) {
-		dcpomatic::Rect const tx = subtitle_transformed_area (
-			float (image_size.width) / video_size().width,
-			float (image_size.height) / video_size().height,
-			sub->area(), film->subtitle_offset(), film->subtitle_scale()
-			);
-
-		shared_ptr<Image> im = sub->image()->scale (tx.size(), film->scaler(), true);
-		out->alpha_blend (im, tx.position());
-	}
-
-	if (image_size != container_size) {
-		assert (image_size.width <= container_size.width);
-		assert (image_size.height <= container_size.height);
-		shared_ptr<Image> im (new SimpleImage (PIX_FMT_RGB24, container_size, true));
-		im->make_black ();
-		im->copy (out, Position ((container_size.width - image_size.width) / 2, (container_size.height - image_size.height) / 2));
-		out = im;
-	}
-		
-	Video (out, same, t);
-
-	if (_frame_rate_conversion.repeat) {
-		Video (image, true, t + film->video_frames_to_time (1));
-		_next_video = t + film->video_frames_to_time (2);
-	} else {
-		_next_video = t + film->video_frames_to_time (1);
-	}
-
-	_odd = !_odd;
-}
-
-/** Called by subclasses when a subtitle is ready.
- *  s may be 0 to say that there is no current subtitle.
- *  @param s New current subtitle, or 0.
- */
-void
-VideoDecoder::subtitle (shared_ptr<TimedSubtitle> s)
-{
-	_timed_subtitle = s;
-	
-	if (_timed_subtitle) {
-		Position const p = _timed_subtitle->subtitle()->position ();
-		_timed_subtitle->subtitle()->set_position (Position (p.x - _video_content->crop().left, p.y - _video_content->crop().top));
-	}
-}
-
-bool
-VideoDecoder::video_done () const
-{
-	shared_ptr<const Film> film = _film.lock ();
-	assert (film);
 	
-	return (_video_content->length() - _next_video) < film->video_frames_to_time (1);
-}
-
-void
-VideoDecoder::seek (Time t)
-{
-	_next_video = t;
+	_video_position = frame + 1;
 }
 
-void
-VideoDecoder::seek_back ()
-{
-	shared_ptr<const Film> film = _film.lock ();
-	assert (film);
-	_next_video -= film->video_frames_to_time (1);
-}
-
-void
-VideoDecoder::seek_forward ()
-{
-	shared_ptr<const Film> film = _film.lock ();
-	assert (film);
-	_next_video += film->video_frames_to_time (1);
-}
-
-void
-VideoDecoder::set_video_container_size (libdcp::Size s)
-{
-	_video_container_size = s;
-}