Remove optical disc fancification layers

This removes anything related to DVD/BD/CD that negatively affected the
core code. It includes trying to rewrite timestamps (since DVDs and
Blurays do not set packet stream timestamps to playback time, and can
even have resets mid-stream), export of chapters, stream languages,
export of title/track lists, and all that.

Only basic seeking is supported. It is very much possible that seeking
completely fails on some discs (on some parts of the timeline), because
timestamp rewriting was removed.

Note that I don't give a shit about optical media. If you want to watch
them, rip them. Keeping some bare support for DVD/BD is the most I'm
going to do to appease the type of lazy, obnoxious users who will care.
There are other players which are better at optical discs.

DOCS/interface-changes.rst

@@ -80,6 +80,8 @@ Interface changes
       and `--macos-title-bar-appearance`.
     - The default for `--vulkan-async-compute` has changed to `yes` from `no`
       with the move to libplacebo as the back-end for vulkan rendering.
+    - Remove "disc-titles", "disc-title", "disc-title-list", and "angle"
+      properties. dvd:// does not support title ranges anymore.
  --- mpv 0.29.0 ---
     - drop --opensles-sample-rate, as --audio-samplerate should be used if desired
     - drop deprecated --videotoolbox-format, --ff-aid, --ff-vid, --ff-sid,

DOCS/man/input.rst

@@ -1182,8 +1182,6 @@ Property list
 ``media-title``
     If the currently played file has a ``title`` tag, use that.
 
-    Otherwise, if the media type is DVD, return the volume ID of DVD.
-
     Otherwise, return the ``filename`` property.
 
 ``file-format``
@@ -1296,40 +1294,6 @@ Property list
     Current MKV edition number. Setting this property to a different value will
     restart playback. The number of the first edition is 0.
 
-``disc-titles``
-    Number of BD/DVD titles.
-
-    This has a number of sub-properties. Replace ``N`` with the 0-based edition
-    index.
-
-    ``disc-titles/count``
-        Number of titles.
-
-    ``disc-titles/id``
-        Title ID as integer. Currently, this is the same as the title index.
-
-    ``disc-titles/length``
-        Length in seconds. Can be unavailable in a number of cases (currently
-        it works for libdvdnav only).
-
-    When querying the property with the client API using ``MPV_FORMAT_NODE``,
-    or with Lua ``mp.get_property_native``, this will return a mpv_node with
-    the following contents:
-
-    ::
-
-        MPV_FORMAT_NODE_ARRAY
-            MPV_FORMAT_NODE_MAP (for each edition)
-                "id"                MPV_FORMAT_INT64
-                "length"            MPV_FORMAT_DOUBLE
-
-``disc-title-list``
-    List of BD/DVD titles.
-
-``disc-title`` (RW)
-    Current BD/DVD title number. Writing works only for ``dvdnav://`` and
-    ``bd://`` (and aliases for these).
-
 ``chapters``
     Number of chapters.
 
@@ -1369,9 +1333,6 @@ Property list
                 "title"             MPV_FORMAT_STRING
                 "default"           MPV_FORMAT_FLAG
 
-``angle`` (RW)
-    Current DVD angle.
-
 ``metadata``
     Metadata key/value pairs.
 

demux/demux.c

@@ -57,7 +57,6 @@ extern const demuxer_desc_t demuxer_desc_mf;
 extern const demuxer_desc_t demuxer_desc_matroska;
 extern const demuxer_desc_t demuxer_desc_lavf;
 extern const demuxer_desc_t demuxer_desc_playlist;
-extern const demuxer_desc_t demuxer_desc_disc;
 extern const demuxer_desc_t demuxer_desc_rar;
 extern const demuxer_desc_t demuxer_desc_libarchive;
 extern const demuxer_desc_t demuxer_desc_null;
@@ -68,7 +67,6 @@ extern const demuxer_desc_t demuxer_desc_timeline;
  * libraries and demuxers requiring binary support. */
 
 const demuxer_desc_t *const demuxer_list[] = {
-    &demuxer_desc_disc,
     &demuxer_desc_edl,
     &demuxer_desc_cue,
     &demuxer_desc_rawaudio,
@@ -2357,7 +2355,6 @@ static struct demuxer *open_given_type(struct mpv_global *global,
         .access_references = opts->access_references,
         .events = DEMUX_EVENT_ALL,
         .duration = -1,
-        .extended_ctrls = stream->extended_ctrls,
     };
     demuxer->seekable = stream->seekable;
 

demux/demux.h

@@ -32,7 +32,6 @@
 
 enum demux_ctrl {
     DEMUXER_CTRL_SWITCHED_TRACKS = 1,
-    DEMUXER_CTRL_RESYNC,
     DEMUXER_CTRL_IDENTIFY_PROGRAM,
     DEMUXER_CTRL_STREAM_CTRL,
     DEMUXER_CTRL_GET_READER_STATE,