Fix incorrect alpha step used for RGBA64 sources.

[dcpomatic.git] / src / lib / dcp_decoder.cc

diff --git a/src/lib/dcp_decoder.cc b/src/lib/dcp_decoder.cc
index 0f4e1afa1fadb2ff535294e3ca014d672466fbd3..24ff507e687ba43f5918e3bb4986e9fc979dbbf8 100644 (file)
--- a/src/lib/dcp_decoder.cc
+++ b/src/lib/dcp_decoder.cc
@@ -23,6 +23,7 @@
 #include "audio_content.h"
 #include "audio_decoder.h"
 #include "config.h"
+#include "constants.h"
 #include "dcp_content.h"
 #include "dcp_decoder.h"
 #include "digester.h"
@@ -136,6 +137,9 @@ DCPDecoder::DCPDecoder (shared_ptr<const Film> film, shared_ptr<const DCPContent
 
        _reel = _reels.begin ();
        get_readers ();
+
+       _font_id_allocator.add_fonts_from_reels(_reels);
+       _font_id_allocator.allocate();
 }
 
 
@@ -304,13 +308,17 @@ DCPDecoder::pass_texts (
                                                        ContentTime::from_frames(_offset - entry_point, vfr) + ContentTime::from_seconds(b.out().as_seconds())
                                                        ),
                                                strings,
-                                               _dcp_content->standard()
+                                               asset->subtitle_standard()
                                                );
                                        strings.clear ();
                                }
 
                                dcp::SubtitleString is_copy = *is;
-                               is_copy.set_font(id_for_font_in_reel(is_copy.font().get_value_or(""), _reel - _reels.begin()));
+                               if (is_copy.font()) {
+                                       is_copy.set_font(_font_id_allocator.font_id(_reel - _reels.begin(), asset->id(), is_copy.font().get()));
+                               } else {
+                                       is_copy.set_font(_font_id_allocator.default_font_id());
+                               }
                                strings.push_back(is_copy);
                        }
 
@@ -340,7 +348,7 @@ DCPDecoder::pass_texts (
                                        ContentTime::from_frames(_offset - entry_point, vfr) + ContentTime::from_seconds(b.out().as_seconds())
                                        ),
                                strings,
-                               _dcp_content->standard()
+                               asset->subtitle_standard()
                                );
                        strings.clear ();
                }
@@ -368,7 +376,7 @@ DCPDecoder::get_readers ()
                return;
        }
 
-       if (!video->ignore() && (*_reel)->main_picture()) {
+       if (video && !video->ignore() && (*_reel)->main_picture()) {
                auto asset = (*_reel)->main_picture()->asset ();
                auto mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (asset);
                auto stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (asset);
@@ -387,7 +395,7 @@ DCPDecoder::get_readers ()
                _stereo_reader.reset ();
        }
 
-       if (!audio->ignore() && (*_reel)->main_sound()) {
+       if (audio && !audio->ignore() && (*_reel)->main_sound()) {
                _sound_reader = (*_reel)->main_sound()->asset()->start_read ();
                _sound_reader->set_check_hmac (false);
        } else {
@@ -443,10 +451,12 @@ DCPDecoder::seek (ContentTime t, bool accurate)
 
        /* Pass texts in the pre-roll */
 
-       auto const vfr = _dcp_content->active_video_frame_rate (film());
-       for (int i = 0; i < pre_roll_seconds * vfr; ++i) {
-               pass_texts (pre, (*_reel)->main_picture()->asset()->size());
-               pre += ContentTime::from_frames (1, vfr);
+       if (_reel != _reels.end()) {
+               auto const vfr = _dcp_content->active_video_frame_rate (film());
+               for (int i = 0; i < pre_roll_seconds * vfr; ++i) {
+                       pass_texts (pre, (*_reel)->main_picture()->asset()->size());
+                       pre += ContentTime::from_frames (1, vfr);
+               }
        }
 
        /* Seek to correct position */