demux_edl: add a special header to disable chapter generation

A bit of a hack.

2 files changed, 29 insertions, 11 deletions

diff --git a/DOCS/edl-mpv.rst b/DOCS/edl-mpv.rst
index cfec52c1bc..cf0d7ffddb 100644
--- a/DOCS/edl-mpv.rst
+++ b/DOCS/edl-mpv.rst
@@ -100,6 +100,18 @@ entries affect all other file entries in the EDL file. Their format is highly
 implementation specific. They should generally follow the file header, and come
 before any file entries.
 
+Disabling chapter generation and copying
+========================================
+
+By default, chapters from the source ranges are copied to the virtual file's
+chapters. Also, a chapter is inserted after each range. This can be disabled
+with the ``no_chapters`` header.
+
+Example::
+
+    !no_chapters
+
+
 MP4 DASH
 ========
 
diff --git a/demux/demux_edl.c b/demux/demux_edl.c
index 98e31a79f2..882af417e7 100644
--- a/demux/demux_edl.c
+++ b/demux/demux_edl.c
@@ -45,6 +45,7 @@ struct tl_part {
 };
 
 struct tl_parts {
+    bool disable_chapters;
     bool dash;
     char *init_fragment_url;
     struct tl_part *parts;
@@ -153,6 +154,8 @@ static struct tl_parts *parse_edl(bstr str)
                 struct tl_parts *ntl = talloc_zero(tl, struct tl_parts);
                 tl->next = ntl;
                 tl = ntl;
+            } else if (bstr_equals0(f_type, "no_chapters")) {
+                tl->disable_chapters = true;
             } else {
                 goto error;
             }
@@ -309,17 +312,20 @@ static void build_timeline(struct timeline *tl, struct tl_parts *parts)
                 }
             }
 
-            // Add a chapter between each file.
-            struct demux_chapter ch = {
-                .pts = starttime,
-                .metadata = talloc_zero(tl, struct mp_tags),
-            };
-            mp_tags_set_str(ch.metadata, "title", part->title ? part->title : part->filename);
-            MP_TARRAY_APPEND(tl, tl->chapters, tl->num_chapters, ch);
-
-            // Also copy the source file's chapters for the relevant parts
-            copy_chapters(&tl->chapters, &tl->num_chapters, source, part->offset,
-                          part->length, starttime);
+            if (!parts->disable_chapters) {
+                // Add a chapter between each file.
+                struct demux_chapter ch = {
+                    .pts = starttime,
+                    .metadata = talloc_zero(tl, struct mp_tags),
+                };
+                mp_tags_set_str(ch.metadata, "title",
+                                part->title ? part->title : part->filename);
+                MP_TARRAY_APPEND(tl, tl->chapters, tl->num_chapters, ch);
+
+                // Also copy the source file's chapters for the relevant parts
+                copy_chapters(&tl->chapters, &tl->num_chapters, source,
+                              part->offset, part->length, starttime);
+            }
         }
 
         tl->parts[n] = (struct timeline_part) {