Dear all
Here is a little patch that add an option "cache_size" to the
cdio_paranoia plugin.
This option set the libcdio_paranoia cache size (in sector), which is by
default very high (1200 sectors == 16 seconds).
On my setup (raspberry pi + usb dvd drive) this default value cause
sound to drop every 16 seconds. With a small value of 75 sectors, it
works much better.
Patch is based on mpd 0.18.21.
Thank you
Regards
Vincent
diff -Naubr mpd-0.18.21/src/input/CdioParanoiaInputPlugin.cxx mpd-0.18.21.new/src/input/CdioParanoiaInputPlugin.cxx
--- mpd-0.18.21/src/input/CdioParanoiaInputPlugin.cxx 2014-11-02 11:39:22.000000000 +0100
+++ mpd-0.18.21.new/src/input/CdioParanoiaInputPlugin.cxx 2014-12-28 16:12:54.302267688 +0100
@@ -85,6 +85,7 @@
static constexpr Domain cdio_domain("cdio");
static bool default_reverse_endian;
+static int cache_size = -1;
static bool
input_cdio_init(const config_param ¶m, Error &error)
@@ -103,6 +104,18 @@
}
}
+ value = param.GetBlockValue("cache_size");
+ if (value != nullptr) {
+ int tmp = atoi(value);
+ if (tmp < 0 || tmp == INT_MAX) {
+ error.Format(config_domain, 0,
+ "Unrecognized 'cache_size' setting: %s",
+ value);
+ return false;
+ }
+ cache_size = tmp;
+ }
+
return true;
}
@@ -260,6 +273,8 @@
/* Set reading mode for full paranoia, but allow skipping sectors. */
paranoia_modeset(i->para, PARANOIA_MODE_FULL^PARANOIA_MODE_NEVERSKIP);
+ cdio_paranoia_cachemodel_size(i->para, cache_size);
+
/* seek to beginning of the track */
cdio_paranoia_seek(i->para, i->lsn_from, SEEK_SET);
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