Allow changes to colours of FFmpeg subtitles (#795).

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

diff --git a/src/lib/ffmpeg_content.cc b/src/lib/ffmpeg_content.cc
index 9cd0395f2f6b22c02846a5f6d77859d1d0e9ef0d..789fd735fd42f46a24aed8488d13480389391545 100644 (file)
--- a/src/lib/ffmpeg_content.cc
+++ b/src/lib/ffmpeg_content.cc
@@ -505,3 +505,14 @@ FFmpegContent::add_properties (list<UserProperty>& p) const
                p.push_back (UserProperty (_("Video"), _("Bits per pixel"), raw_convert<string> (_bits_per_pixel.get ())));
        }
 }
+
+/** Our subtitle streams have colour maps, which can be changed, but
+ *  they have no way of signalling that change.  As a hack, we have this
+ *  method which callers can use when they've modified one of our subtitle
+ *  streams.
+ */
+void
+FFmpegContent::signal_subtitle_stream_changed ()
+{
+       signal_changed (FFmpegContentProperty::SUBTITLE_STREAM);
+}