From 6199e090dc1e32d3753ba7e7d7ea8c5f0d79f046 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Sat, 21 Jul 2018 21:47:25 +0100
Subject: Revert "Remove join function; the code is long and I don't think
 anybody"

It turns out Carsten uses it :)

This reverts commit bd5e8b83a3a18787241982efdae809d4db21f65d.
---
 src/lib/ffmpeg_content.cc | 61 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

(limited to 'src/lib/ffmpeg_content.cc')

diff --git a/src/lib/ffmpeg_content.cc b/src/lib/ffmpeg_content.cc
index ddf4548b4..db999df20 100644
--- a/src/lib/ffmpeg_content.cc
+++ b/src/lib/ffmpeg_content.cc
@@ -128,6 +128,67 @@ FFmpegContent::FFmpegContent (shared_ptr<const Film> film, cxml::ConstNodePtr no
 
 }
 
+FFmpegContent::FFmpegContent (shared_ptr<const Film> film, vector<shared_ptr<Content> > c)
+	: Content (film, c)
+{
+	vector<shared_ptr<Content> >::const_iterator i = c.begin ();
+
+	bool need_video = false;
+	bool need_audio = false;
+	bool need_caption = false;
+
+	if (i != c.end ()) {
+		need_video = static_cast<bool> ((*i)->video);
+		need_audio = static_cast<bool> ((*i)->audio);
+		need_caption = static_cast<bool> ((*i)->caption);
+	}
+
+	while (i != c.end ()) {
+		if (need_video != static_cast<bool> ((*i)->video)) {
+			throw JoinError (_("Content to be joined must all have or not have video"));
+		}
+		if (need_audio != static_cast<bool> ((*i)->audio)) {
+			throw JoinError (_("Content to be joined must all have or not have audio"));
+		}
+		if (need_caption != static_cast<bool> ((*i)->caption)) {
+			throw JoinError (_("Content to be joined must all have or not have captions"));
+		}
+		++i;
+	}
+
+	if (need_video) {
+		video.reset (new VideoContent (this, c));
+	}
+	if (need_audio) {
+		audio.reset (new AudioContent (this, c));
+	}
+	if (need_caption) {
+		caption.reset (new CaptionContent (this, c));
+	}
+
+	shared_ptr<FFmpegContent> ref = dynamic_pointer_cast<FFmpegContent> (c[0]);
+	DCPOMATIC_ASSERT (ref);
+
+	for (size_t i = 0; i < c.size(); ++i) {
+		shared_ptr<FFmpegContent> fc = dynamic_pointer_cast<FFmpegContent> (c[i]);
+		if (fc->caption && fc->caption->use() && *(fc->_subtitle_stream.get()) != *(ref->_subtitle_stream.get())) {
+			throw JoinError (_("Content to be joined must use the same subtitle stream."));
+		}
+	}
+
+	/* XXX: should probably check that more of the stuff below is the same in *this and ref */
+
+	_subtitle_streams = ref->subtitle_streams ();
+	_subtitle_stream = ref->subtitle_stream ();
+	_first_video = ref->_first_video;
+	_filters = ref->_filters;
+	_color_range = ref->_color_range;
+	_color_primaries = ref->_color_primaries;
+	_color_trc = ref->_color_trc;
+	_colorspace = ref->_colorspace;
+	_bits_per_pixel = ref->_bits_per_pixel;
+}
+
 void
 FFmpegContent::as_xml (xmlpp::Node* node, bool with_paths) const
 {
-- 
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