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-rw-r--r--Makefile.am6
-rw-r--r--configure.ac1
-rw-r--r--src/encoder/OggSerial.cxx43
-rw-r--r--src/encoder/OggSerial.hxx29
-rw-r--r--src/encoder/OpusEncoderPlugin.cxx3
-rw-r--r--src/encoder/VorbisEncoderPlugin.cxx5
6 files changed, 84 insertions, 3 deletions
diff --git a/Makefile.am b/Makefile.am
index 45f257182..52ca84cc8 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -678,6 +678,12 @@ libencoder_plugins_a_SOURCES = \
src/encoder/NullEncoderPlugin.cxx src/encoder/NullEncoderPlugin.hxx \
src/EncoderList.cxx src/EncoderList.hxx
+if HAVE_OGG_ENCODER
+libencoder_plugins_a_SOURCES += \
+ src/encoder/OggSerial.cxx src/encoder/OggSerial.hxx \
+ src/encoder/OggStream.hxx
+endif
+
if ENABLE_WAVE_ENCODER
libencoder_plugins_a_SOURCES += \
src/encoder/WaveEncoderPlugin.cxx \
diff --git a/configure.ac b/configure.ac
index 66d7cee5a..ae95fc560 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1184,6 +1184,7 @@ if test x$enable_encoder = xyes; then
[Define to enable the encoder plugins])
fi
AM_CONDITIONAL(ENABLE_ENCODER, test x$enable_encoder = xyes)
+AM_CONDITIONAL(HAVE_OGG_ENCODER, test x$enable_vorbis_encoder = xyes || test x$enable_opus = xyes)
dnl ---------------------------------------------------------------------------
dnl Audio Output Plugins
diff --git a/src/encoder/OggSerial.cxx b/src/encoder/OggSerial.cxx
new file mode 100644
index 000000000..5659762f2
--- /dev/null
+++ b/src/encoder/OggSerial.cxx
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2003-2012 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "OggSerial.hxx"
+#include "system/Clock.hxx"
+#include "Compiler.h"
+
+#include <atomic>
+
+static std::atomic_uint next_ogg_serial;
+
+int
+GenerateOggSerial()
+{
+ unsigned serial = ++next_ogg_serial;
+ if (gcc_unlikely(serial < 16)) {
+ /* first-time initialization: seed with a clock value,
+ which is random enough for our use */
+
+ /* this code is not race-free, but good enough */
+ const unsigned seed = MonotonicClockMS();
+ next_ogg_serial = serial = seed;
+ }
+
+ return serial;
+}
+
diff --git a/src/encoder/OggSerial.hxx b/src/encoder/OggSerial.hxx
new file mode 100644
index 000000000..9f6334d55
--- /dev/null
+++ b/src/encoder/OggSerial.hxx
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2003-2012 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_OGG_SERIAL_HXX
+#define MPD_OGG_SERIAL_HXX
+
+/**
+ * Generate the next pseudo-random Ogg serial.
+ */
+int
+GenerateOggSerial();
+
+#endif
diff --git a/src/encoder/OpusEncoderPlugin.cxx b/src/encoder/OpusEncoderPlugin.cxx
index 982fdd9a2..9e82cb1ee 100644
--- a/src/encoder/OpusEncoderPlugin.cxx
+++ b/src/encoder/OpusEncoderPlugin.cxx
@@ -20,6 +20,7 @@
#include "config.h"
#include "OpusEncoderPlugin.hxx"
#include "OggStream.hxx"
+#include "OggSerial.hxx"
#include "EncoderAPI.hxx"
#include "AudioFormat.hxx"
#include "ConfigError.hxx"
@@ -188,7 +189,7 @@ opus_encoder_open(Encoder *_encoder,
encoder->buffer_position = 0;
encoder->buffer = (unsigned char *)g_malloc(encoder->buffer_size);
- encoder->stream.Initialize(g_random_int());
+ encoder->stream.Initialize(GenerateOggSerial());
encoder->packetno = 0;
return true;
diff --git a/src/encoder/VorbisEncoderPlugin.cxx b/src/encoder/VorbisEncoderPlugin.cxx
index 84b4cac28..1a2aa1a03 100644
--- a/src/encoder/VorbisEncoderPlugin.cxx
+++ b/src/encoder/VorbisEncoderPlugin.cxx
@@ -20,6 +20,7 @@
#include "config.h"
#include "VorbisEncoderPlugin.hxx"
#include "OggStream.hxx"
+#include "OggSerial.hxx"
#include "EncoderAPI.hxx"
#include "tag/Tag.hxx"
#include "AudioFormat.hxx"
@@ -164,7 +165,7 @@ vorbis_encoder_reinit(struct vorbis_encoder *encoder, Error &error)
vorbis_analysis_init(&encoder->vd, &encoder->vi);
vorbis_block_init(&encoder->vd, &encoder->vb);
- encoder->stream.Initialize(g_random_int());
+ encoder->stream.Initialize(GenerateOggSerial());
return true;
}
@@ -294,7 +295,7 @@ vorbis_encoder_tag(Encoder *_encoder, const Tag *tag,
/* reset ogg_stream_state and begin a new stream */
- encoder->stream.Reinitialize(g_random_int());
+ encoder->stream.Reinitialize(GenerateOggSerial());
/* send that vorbis_comment to the ogg_stream_state */