options: move -chapter values to option struct

-chapter can optionally take a range with a start and an end. Add a
new option type which supports such values and use that instead of a
custom per-option function.

This commit also fixes a build configuration bug: before the
availability of the -chapter option depended on DVD functionality
being enabled in the binary, even though the option works with other
sources too.

1 files changed, 1 insertions, 0 deletions

diff --git a/options.h b/options.h
index 866bfeecf3..22bbff3915 100644
--- a/options.h
+++ b/options.h
@@ -29,6 +29,7 @@ typedef struct MPOpts {
     int osd_duration;
     int loop_times;
     int ordered_chapters;
+    int chapterrange[2];
     int edition_id;
     int correct_pts;
     int user_correct_pts;