Remove classic Linux analog TV support, and DVB runtime controls

Linux analog TV support (via tv://) was excessively complex, and
whenever I attempted to use it (cameras or loopback devices), it didn't
work well, or would have required some major work to update it. It's
very much stuck in the analog past (my favorite are the frequency tables
in frequencies.c for analog TV channels which don't exist anymore).

Especially cameras and such work fine with libavdevice and better than
tv://, for example:

  mpv av://v4l2:/dev/video0

(adding --profile=low-latency --untimed even makes it mostly realtime)

Adding a new input layer that targets such "modern" uses would be
acceptable, if anyone is interested in it. The old TV code is just too
focused on actual analog TV.

DVB is rather obscure, but has an active maintainer, so don't remove it.
However, the demux/stream ctrl layer must go, so remove controls for
channel switching. Most of these could be reimplemented by using the
normal method for option runtime changes.

1 files changed, 0 insertions, 1 deletions

diff --git a/demux/demux.h b/demux/demux.h
index 2bb81526ab..838314bd4b 100644
--- a/demux/demux.h
+++ b/demux/demux.h
@@ -202,7 +202,6 @@ typedef struct demuxer {
     bool fully_read;
     bool is_network; // opened directly from a network stream
     bool access_references; // allow opening other files/URLs
-    bool extended_ctrls; // supports some of BD/DVD/DVB/TV controls
 
     // Bitmask of DEMUX_EVENT_*
     int events;