opensles output for libpulseaudio from @twaik (#1968)

packages/cmus/build.sh

@@ -4,6 +4,7 @@ TERMUX_PKG_VERSION=2.7.1
 TERMUX_PKG_DEPENDS="libandroid-support, ncurses, libflac, libmad, libvorbis, opusfile, libcue, libpulseaudio"
 TERMUX_PKG_SRCURL=https://github.com/cmus/cmus/archive/v${TERMUX_PKG_VERSION}.tar.gz
 TERMUX_PKG_SHA256=8179a7a843d257ddb585f4c65599844bc0e516fe85e97f6f87a7ceade4eb5165
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_BUILD_IN_SRC=yes
 
 termux_step_pre_configure() {

packages/libpulseaudio/build.sh

@@ -1,7 +1,7 @@
 TERMUX_PKG_HOMEPAGE=https://www.freedesktop.org/wiki/Software/PulseAudio
 TERMUX_PKG_DESCRIPTION="A featureful, general-purpose sound server - shared libraries"
 TERMUX_PKG_VERSION=11.1
-TERMUX_PKG_REVISION=1
+TERMUX_PKG_REVISION=2
 TERMUX_PKG_SHA256=f2521c525a77166189e3cb9169f75c2ee2b82fa3fcf9476024fbc2c3a6c9cd9e
 TERMUX_PKG_SRCURL=https://www.freedesktop.org/software/pulseaudio/releases/pulseaudio-${TERMUX_PKG_VERSION}.tar.xz
 TERMUX_PKG_DEPENDS="libltdl, libsndfile, libandroid-glob"
@@ -15,9 +15,12 @@ TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--disable-neon-opt
 --without-caps
 --with-database=simple
 --disable-memfd"
-TERMUX_PKG_CONFFILES="etc/pulse/client.conf etc/pulse/daemon.conf etc/pulse/dafault.pa etc/pulse/system.pa"
+TERMUX_PKG_CONFFILES="etc/pulse/client.conf etc/pulse/daemon.conf etc/pulse/default.pa etc/pulse/system.pa"
 
 termux_step_pre_configure () {
+	mkdir $TERMUX_PKG_SRCDIR/src/modules/sles
+	cp $TERMUX_PKG_BUILDER_DIR/module-sles-sink.c $TERMUX_PKG_SRCDIR/src/modules/sles
+	intltoolize --automake --copy --force
 	LDFLAGS+=" -llog -landroid-glob"
 }
 
@@ -27,9 +30,27 @@ termux_step_post_make_install () {
 	for lib in pulseaudio/lib*.so* pulse-${TERMUX_PKG_VERSION}/modules/lib*.so*; do
 		ln -s -f $lib `basename $lib`
 	done
-
+	if [ $TERMUX_ARCH_BITS = "32" ]; then
+		SYSTEM_LIB=lib
+	else
+		SYSTEM_LIB=lib64
+	fi
 	# Pulseaudio fails to start when it cannot detect any sound hardware
 	# so disable hardware detection.
 	sed -i $TERMUX_PREFIX/etc/pulse/default.pa \
 		-e '/^load-module module-detect$/s/^/#/'
+	echo "load-module module-sles-sink" >> $TERMUX_PREFIX/etc/pulse/default.pa
+	cd $TERMUX_PREFIX/bin
+
+	for bin in esdcompat pacat pacmd pactl pasuspender pulseaudio; do
+		mv $bin ../libexec
+		local PA_LIBS="" lib
+		for lib in android-glob pulse pulsecommon-11.1 pulsecore-11.1; do
+			if [ -n "$PA_LIBS" ]; then PA_LIBS+=":"; fi
+			PA_LIBS+="$TERMUX_PREFIX/lib/lib${lib}.so"
+		done
+		echo "export LD_PRELOAD=$PA_LIBS" >> $TERMUX_PREFIX/bin/$bin
+		echo "LD_LIBRARY_PATH=/system/$SYSTEM_LIB:/system/vendor/$SYSTEM_LIB:/data/data/com.termux/files/usr/lib /data/data/com.termux/files/usr/libexec/$bin \$@" >> $TERMUX_PREFIX/bin/$bin
+		chmod +x $bin
+	done
 }

packages/libpulseaudio/makefile.am.patch

@@ -0,0 +1,23 @@
+--- ../cache/pulseaudio-11.1/src/Makefile.am	2017-09-18 10:41:02.000000000 +0000
++++ ./src/Makefile.am	2017-12-22 22:51:30.628573929 +0000
+@@ -1559,7 +1559,8 @@
+ 		module-switch-on-port-available-symdef.h \
+ 		module-filter-apply-symdef.h \
+ 		module-filter-heuristics-symdef.h \
+-		module-allow-passthrough-symdef.h
++		module-allow-passthrough-symdef.h \
++		module-sles-sink-symdef.h
+ 
+ if HAVE_ESOUND
+ SYMDEF_FILES += \
+@@ -1594,6 +1595,10 @@
+ module_simple_protocol_unix_la_LIBADD = $(MODULE_LIBADD) libprotocol-simple.la
+ 
+ # CLI protocol
++modlibexec_LTLIBRARIES += module-sles-sink.la
++module_sles_sink_la_SOURCES = modules/sles/module-sles-sink.c
++module_sles_sink_la_LDFLAGS = $(MODULE_LDFLAGS) -lOpenSLES
++module_sles_sink_la_LIBADD = $(MODULE_LIBADD)
+ 
+ module_cli_la_SOURCES = modules/module-cli.c
+ module_cli_la_LDFLAGS = $(MODULE_LDFLAGS)

packages/libpulseaudio/module-sles-sink.c

@@ -0,0 +1,431 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2004-2008 Lennart Poettering
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2.1 of the License,
+  or (at your option) any later version.
+
+  PulseAudio 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 Lesser General Public License
+  along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include <pulse/rtclock.h>
+#include <pulse/timeval.h>
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/i18n.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/sink.h>
+#include <pulsecore/module.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/modargs.h>
+#include <pulsecore/log.h>
+#include <pulsecore/thread.h>
+#include <pulsecore/thread-mq.h>
+#include <pulsecore/rtpoll.h>
+
+#include <SLES/OpenSLES.h>
+
+#include "module-sles-sink-symdef.h"
+
+#ifdef USE_ANDROID_SIMPLE_BUFFER_QUEUE
+#define DATALOCATOR_BUFFERQUEUE SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
+#define IID_BUFFERQUEUE SL_IID_ANDROIDSIMPLEBUFFERQUEUE
+#define BufferQueueItf SLAndroidSimpleBufferQueueItf
+#define BufferQueueState SLAndroidSimpleBufferQueueState
+#define IID_BUFFERQUEUE_USED SL_IID_ANDROIDSIMPLEBUFFERQUEUE
+#define INDEX index
+#else
+#define DATALOCATOR_BUFFERQUEUE SL_DATALOCATOR_BUFFERQUEUE
+#define IID_BUFFERQUEUE SL_IID_BUFFERQUEUE
+#define BufferQueueItf SLBufferQueueItf
+#define BufferQueueState SLBufferQueueState
+#define IID_BUFFERQUEUE_USED IID_BUFFERQUEUE
+#define INDEX playIndex
+#endif
+
+#define checkResult(r) do { \
+	if ((r) != SL_RESULT_SUCCESS) { \
+		if ((r) == SL_RESULT_PARAMETER_INVALID) fprintf(stderr, "error SL_RESULT_PARAMETER_INVALID at %s:%d\n", __FILE__, __LINE__); \
+		else if ((r) == SL_RESULT_PRECONDITIONS_VIOLATED ) fprintf(stderr, "error SL_RESULT_PRECONDITIONS_VIOLATED at %s:%d\n", __FILE__, __LINE__); \
+		else fprintf(stderr, "error %d at %s:%d\n", (int) r, __FILE__, __LINE__); \
+		} \
+	} while (0)
+typedef struct {
+	short left;
+	short right;
+} frame_t;
+
+PA_MODULE_AUTHOR("Lennart Poettering, Nathan Martynov");
+PA_MODULE_DESCRIPTION("Android OpenSL ES sink");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(false);
+PA_MODULE_USAGE(
+        "sink_name=<name for the sink> "
+        "sink_properties=<properties for the sink> ");
+
+#define DEFAULT_SINK_NAME "OpenSL ES sink"
+#define BLOCK_USEC (PA_USEC_PER_SEC * 2)
+
+struct userdata {
+    pa_core *core;
+    pa_module *module;
+    pa_sink *sink;
+
+    pa_thread *thread;
+    pa_thread_mq thread_mq;
+    pa_rtpoll *rtpoll;
+
+    pa_usec_t block_usec;
+    pa_usec_t timestamp;
+    
+    pa_memchunk memchunk;
+    
+	SLObjectItf engineObject;
+	SLEngineItf engineEngine;
+ 
+	// output mix interfaces
+	SLObjectItf outputMixObject;
+ 
+	// buffer queue player interfaces
+	SLObjectItf bqPlayerObject;
+	SLPlayItf bqPlayerPlay;
+	BufferQueueItf bqPlayerBufferQueue;
+};
+
+static const char* const valid_modargs[] = {
+    "sink_name",
+    "sink_properties",
+    NULL
+};
+
+static int sink_process_msg(
+        pa_msgobject *o,
+        int code,
+        void *data,
+        int64_t offset,
+        pa_memchunk *chunk) {
+
+    struct userdata *u = PA_SINK(o)->userdata;
+
+    switch (code) {
+        case PA_SINK_MESSAGE_SET_STATE:
+
+            if (pa_sink_get_state(u->sink) == PA_SINK_SUSPENDED || pa_sink_get_state(u->sink) == PA_SINK_INIT) {
+                if (PA_PTR_TO_UINT(data) == PA_SINK_RUNNING || PA_PTR_TO_UINT(data) == PA_SINK_IDLE)
+                    u->timestamp = pa_rtclock_now();
+            }
+
+            break;
+
+        case PA_SINK_MESSAGE_GET_LATENCY: {
+            pa_usec_t now;
+
+            now = pa_rtclock_now();
+            *((pa_usec_t*) data) = u->timestamp > now ? u->timestamp - now : 0ULL;
+
+            return 0;
+        }
+    }
+
+    return pa_sink_process_msg(o, code, data, offset, chunk);
+}
+
+static void sink_update_requested_latency_cb(pa_sink *s) {
+    struct userdata *u;
+    size_t nbytes;
+
+    pa_sink_assert_ref(s);
+    pa_assert_se(u = s->userdata);
+
+    u->block_usec = pa_sink_get_requested_latency_within_thread(s);
+
+    if (u->block_usec == (pa_usec_t) -1)
+        u->block_usec = s->thread_info.max_latency;
+
+    nbytes = pa_usec_to_bytes(u->block_usec, &s->sample_spec);
+    pa_sink_set_max_rewind_within_thread(s, nbytes);
+    pa_sink_set_max_request_within_thread(s, nbytes);
+}
+
+void pa_init_sles_player(struct userdata *s)
+{
+	if (s == NULL) return;
+	SLresult result;
+	
+	// create engine
+	result = slCreateEngine(&(s->engineObject), 0, NULL, 0, NULL, NULL); checkResult(result);
+	result = (*s->engineObject)->Realize(s->engineObject, SL_BOOLEAN_FALSE); checkResult(result);
+	
+	result = (*s->engineObject)->GetInterface(s->engineObject, SL_IID_ENGINE, &(s->engineEngine)); checkResult(result);
+	
+	// create output mix
+	result = (*s->engineEngine)->CreateOutputMix(s->engineEngine, &(s->outputMixObject), 0, NULL, NULL);  checkResult(result);
+	result = (*s->outputMixObject)->Realize(s->outputMixObject, SL_BOOLEAN_FALSE); checkResult(result);
+	
+	// create audio player
+		
+	SLDataLocator_OutputMix locator_outputmix;
+	locator_outputmix.locatorType = SL_DATALOCATOR_OUTPUTMIX;
+	locator_outputmix.outputMix = s->outputMixObject;
+	
+	SLDataLocator_BufferQueue locator_bufferqueue;
+	locator_bufferqueue.locatorType = DATALOCATOR_BUFFERQUEUE;
+	locator_bufferqueue.numBuffers = 50;
+	
+	SLDataFormat_PCM pcm;
+	pcm.formatType = SL_DATAFORMAT_PCM;
+	pcm.numChannels = 2;
+	pcm.samplesPerSec = SL_SAMPLINGRATE_32;
+	pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
+	pcm.containerSize = 16;
+	pcm.channelMask = SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT;
+	pcm.endianness = SL_BYTEORDER_LITTLEENDIAN;
+	
+	SLDataSource audiosrc;
+	audiosrc.pLocator = &locator_bufferqueue;
+	audiosrc.pFormat = &pcm;
+	
+	SLDataSink audiosnk;
+	audiosnk.pLocator = &locator_outputmix;
+	audiosnk.pFormat = NULL;
+	
+	SLInterfaceID ids[1] = {IID_BUFFERQUEUE};
+	SLboolean flags[1] = {SL_BOOLEAN_TRUE};
+	result = (*s->engineEngine)->CreateAudioPlayer(s->engineEngine, &s->bqPlayerObject, &audiosrc, &audiosnk, 1, ids, flags);  checkResult(result);
+	result = (*s->bqPlayerObject)->Realize(s->bqPlayerObject, SL_BOOLEAN_FALSE); checkResult(result);
+	
+	result = (*s->bqPlayerObject)->GetInterface(s->bqPlayerObject, SL_IID_PLAY, &s->bqPlayerPlay); checkResult(result);
+	result = (*s->bqPlayerObject)->GetInterface(s->bqPlayerObject, IID_BUFFERQUEUE_USED, &s->bqPlayerBufferQueue); checkResult(result);
+	
+	result = (*s->bqPlayerPlay)->SetPlayState(s->bqPlayerPlay, SL_PLAYSTATE_PLAYING); checkResult(result);
+}
+
+void pa_destroy_sles_player(struct userdata *s){
+	if (s == NULL) return;
+	(*s->bqPlayerPlay)->SetPlayState(s->bqPlayerPlay, SL_PLAYSTATE_STOPPED);
+	(*s->bqPlayerObject)->Destroy(s->bqPlayerObject);
+	(*s->outputMixObject)->Destroy(s->outputMixObject);
+	(*s->engineObject)->Destroy(s->engineObject);
+}
+
+static void process_render(struct userdata *u, pa_usec_t now) {
+    size_t ate = 0;
+
+    pa_assert(u);
+
+    /* This is the configured latency. Sink inputs connected to us
+    might not have a single frame more than the maxrequest value
+    queued. Hence: at maximum read this many bytes from the sink
+    inputs. */
+
+    /* Fill the buffer up the latency size */
+    while (u->timestamp < now + u->block_usec) {
+        void *p;
+		
+        pa_sink_render(u->sink, u->sink->thread_info.max_request, &u->memchunk);
+        p = pa_memblock_acquire(u->memchunk.memblock);
+        (*u->bqPlayerBufferQueue)->Enqueue(u->bqPlayerBufferQueue, (uint8_t*) p + u->memchunk.index, u->memchunk.length);
+        pa_memblock_release(u->memchunk.memblock);
+
+/*         pa_log_debug("Ate %lu bytes.", (unsigned long) chunk.length); */
+        u->timestamp += pa_bytes_to_usec(u->memchunk.length, &u->sink->sample_spec);
+
+        ate += u->memchunk.length;
+
+        if (ate >= u->sink->thread_info.max_request)
+            break;
+    }
+
+/*     pa_log_debug("Ate in sum %lu bytes (of %lu)", (unsigned long) ate, (unsigned long) nbytes); */
+}
+
+static void thread_func(void *userdata) {
+    struct userdata *u = userdata;
+
+    pa_assert(u);
+
+    pa_log_debug("Thread starting up");
+
+    pa_thread_mq_install(&u->thread_mq);
+
+    u->timestamp = pa_rtclock_now();
+
+    for (;;) {
+        pa_usec_t now = 0;
+        int ret;
+
+        if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
+            now = pa_rtclock_now();
+
+        if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
+              pa_sink_process_rewind(u->sink, 0);
+
+        /* Render some data and drop it immediately */
+        if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
+            if (u->timestamp <= now)
+                process_render(u, now);
+
+            pa_rtpoll_set_timer_absolute(u->rtpoll, u->timestamp);
+        } else
+            pa_rtpoll_set_timer_disabled(u->rtpoll);
+
+        /* Hmm, nothing to do. Let's sleep */
+        if ((ret = pa_rtpoll_run(u->rtpoll)) < 0)
+            goto fail;
+
+        if (ret == 0)
+            goto finish;
+    }
+
+fail:
+    /* If this was no regular exit from the loop we have to continue
+     * processing messages until we received PA_MESSAGE_SHUTDOWN */
+    pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
+    pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
+
+finish:
+    pa_log_debug("Thread shutting down");
+}
+
+int pa__init(pa_module*m) {
+    struct userdata *u = NULL;
+    pa_sample_spec ss;
+    pa_channel_map map;
+    pa_modargs *ma = NULL;
+    pa_sink_new_data data;
+    size_t nbytes;
+
+    pa_assert(m);
+
+    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+        pa_log("Failed to parse module arguments.");
+        goto fail;
+    }
+
+    // High rate causes glitches on some devices, this is needed to prevent it
+    ss.rate = 32000;
+    ss.channels = 2;
+    ss.format = PA_SAMPLE_S16LE;
+    map = m->core->default_channel_map;
+
+
+    m->userdata = u = pa_xnew0(struct userdata, 1);
+    u->core = m->core;
+    u->module = m;
+    u->rtpoll = pa_rtpoll_new();
+    pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
+	
+	pa_init_sles_player(u);
+	int buff[2] = {0, 0};
+	(*u->bqPlayerBufferQueue)->Enqueue(u->bqPlayerBufferQueue, buff, 1);
+
+    pa_sink_new_data_init(&data);
+    data.driver = __FILE__;
+    data.module = m;
+    pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
+    pa_sink_new_data_set_sample_spec(&data, &ss);
+    pa_sink_new_data_set_channel_map(&data, &map);
+    pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, _("Null Output"));
+    pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "abstract");
+
+    if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
+        pa_log("Invalid properties");
+        pa_sink_new_data_done(&data);
+        goto fail;
+    }
+
+    u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY|PA_SINK_DYNAMIC_LATENCY);
+    pa_sink_new_data_done(&data);
+
+    if (!u->sink) {
+        pa_log("Failed to create sink object.");
+        goto fail;
+    }
+
+    u->sink->parent.process_msg = sink_process_msg;
+    u->sink->update_requested_latency = sink_update_requested_latency_cb;
+    u->sink->userdata = u;
+
+    pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
+    pa_sink_set_rtpoll(u->sink, u->rtpoll);
+
+    u->block_usec = BLOCK_USEC;
+    nbytes = pa_usec_to_bytes(u->block_usec, &u->sink->sample_spec);
+    pa_sink_set_max_rewind(u->sink, nbytes);
+    pa_sink_set_max_request(u->sink, nbytes);
+
+    if (!(u->thread = pa_thread_new("null-sink", thread_func, u))) {
+        pa_log("Failed to create thread.");
+        goto fail;
+    }
+
+    pa_sink_set_latency_range(u->sink, 0, BLOCK_USEC);
+
+    pa_sink_put(u->sink);
+
+    pa_modargs_free(ma);
+
+    return 0;
+
+fail:
+    if (ma)
+        pa_modargs_free(ma);
+
+    pa__done(m);
+
+    return -1;
+}
+
+int pa__get_n_used(pa_module *m) {
+    struct userdata *u;
+
+    pa_assert(m);
+    pa_assert_se(u = m->userdata);
+
+    return pa_sink_linked_by(u->sink);
+}
+
+void pa__done(pa_module*m) {
+    struct userdata *u;
+
+    pa_assert(m);
+
+    if (!(u = m->userdata))
+        return;
+
+    if (u->sink)
+        pa_sink_unlink(u->sink);
+
+    if (u->thread) {
+        pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
+        pa_thread_free(u->thread);
+    }
+
+    pa_thread_mq_done(&u->thread_mq);
+
+    if (u->sink)
+        pa_sink_unref(u->sink);
+
+    if (u->rtpoll)
+        pa_rtpoll_free(u->rtpoll);
+
+    pa_xfree(u);
+}

packages/sox/build.sh

@@ -1,21 +1,27 @@
 TERMUX_PKG_HOMEPAGE=http://sox.sourceforge.net/
 TERMUX_PKG_DESCRIPTION="Command line utility for converting between and applying effects to various audio files formats"
 TERMUX_PKG_VERSION=14.4.2
-TERMUX_PKG_REVISION=4
+TERMUX_PKG_REVISION=5
 TERMUX_PKG_SRCURL=http://downloads.sourceforge.net/project/sox/sox/${TERMUX_PKG_VERSION}/sox-${TERMUX_PKG_VERSION}.tar.bz2
 TERMUX_PKG_SHA256=81a6956d4330e75b5827316e44ae381e6f1e8928003c6aa45896da9041ea149c
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
 --with-oggvorbis
---without-libltdl
 --without-opus
---without-pulseaudio
+--with-pulseaudio=dyn
 --without-sndfile
 "
 TERMUX_PKG_RM_AFTER_INSTALL="bin/play bin/rec share/man/man1/play.1 share/man/man1/rec.1"
 # Depend on file for libmagic.so linking:
-TERMUX_PKG_DEPENDS="file, libpng, libmp3lame, libogg, libvorbis, libandroid-glob, libflac, libid3tag, libmad"
+TERMUX_PKG_DEPENDS="libltdl, file, libpng, libmp3lame, libogg, libvorbis, libandroid-glob, libflac, libid3tag, libmad, pulseaudio"
 
 termux_step_pre_configure() {
 	LDFLAGS+=" -landroid-glob"
 	CPPFLAGS+=" -D_FSTDIO"
 }
+
+
+termux_step_post_massage() { 
+	cd "$TERMUX_PKG_MASSAGEDIR/$TERMUX_PREFIX/bin"
+	ln -sf sox play
+	ln -sf sox rec
+}