demux: bump default demuxer queue sizes

Now that we have fast stream switching, we can bump these sizes, as the
queues cause no delay in switching anymore.

Of course, the fast stream switching works for mkv and mp4 only. Other
formats will incur a quite terrible delay especially in network mode,
which this commit changes to 10 seconds. Let's see if someone
complains...

DOCS/man/options.rst

@@ -2241,7 +2241,7 @@ Demuxer
 
 ``--demuxer-readahead-secs=<seconds>``
     If ``--demuxer-thread`` is enabled, this controls how much the demuxer
-    should buffer ahead in seconds (default: 0.2). As long as no packet has
+    should buffer ahead in seconds (default: 1). As long as no packet has
     a timestamp difference higher than the readahead amount relative to the
     last packet returned to the decoder, the demuxer keeps reading.
 
@@ -3138,7 +3138,7 @@ Cache
 ``--cache-secs=<seconds>``
     How many seconds of audio/video to prefetch if the cache is active. This
     overrides the ``--demuxer-readahead-secs`` option if and only if the cache
-    is enabled and the value is larger. (Default: 2.)
+    is enabled and the value is larger. (Default: 10.)
 
 ``--cache-pause``, ``--no-cache-pause``
     Whether the player should automatically pause when the cache runs low,

options/options.c

@@ -737,11 +737,11 @@ const struct MPOpts mp_default_opts = {
     .demuxer_thread = 1,
     .demuxer_min_packs = 0,
     .demuxer_min_bytes = 0,
-    .demuxer_min_secs = 0.2,
+    .demuxer_min_secs = 1.0,
     .network_rtsp_transport = 2,
     .network_timeout = 0.0,
     .hls_bitrate = 2,
-    .demuxer_min_secs_cache = 2,
+    .demuxer_min_secs_cache = 10.0,
     .cache_pausing = 1,
     .chapterrange = {-1, -1},
     .ab_loop = {MP_NOPTS_VALUE, MP_NOPTS_VALUE},