[libav.git] / libavformat / beosaudio.cpp

/*
 * BeOS audio play interface
 * Copyright (c) 2000, 2001 Fabrice Bellard.
 *
 * This library 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 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/time.h>

#include <Application.h>
#include <SoundPlayer.h>

extern "C" {
#include "avformat.h"
}

/* enable performance checks */
//#define PERF_CHECK

#define AUDIO_BLOCK_SIZE 4096
//#define AUDIO_BLOCK_SIZE 2048
#define AUDIO_BLOCK_COUNT 8

#define AUDIO_BUFFER_SIZE (AUDIO_BLOCK_SIZE*AUDIO_BLOCK_COUNT)

typedef struct {
    int fd; // UNUSED
    int sample_rate;
    int channels;
    int frame_size; /* in bytes ! */
    CodecID codec_id;
    uint8_t buffer[AUDIO_BUFFER_SIZE];
    int buffer_ptr;
    /* ring buffer */
    sem_id input_sem;
    int input_index;
    sem_id output_sem;
    int output_index;
    int queued;
    BSoundPlayer *player;
    int has_quit; /* signal callbacks not to wait */
    volatile bigtime_t starve_time;
} AudioData;

static thread_id main_thid;
static thread_id bapp_thid;
static int own_BApp_created = 0;
static int refcount = 0;

/* create the BApplication and Run() it */
static int32 bapp_thread(void *arg)
{
    new BApplication("application/x-vnd.ffmpeg");
    own_BApp_created = 1;
    be_app->Run();
    /* kill the process group */
//    kill(0, SIGINT);
//    kill(main_thid, SIGHUP);
    return B_OK;
}

/* create the BApplication only if needed */
static void create_bapp_if_needed(void)
{
    if (refcount++ == 0) {
        /* needed by libmedia */
        if (be_app == NULL) {
            bapp_thid = spawn_thread(bapp_thread, "ffmpeg BApplication", B_NORMAL_PRIORITY, NULL);
            resume_thread(bapp_thid);
            while (!own_BApp_created)
                snooze(50000);
        }
    }
}

static void destroy_bapp_if_needed(void)
{
    if (--refcount == 0 && own_BApp_created) {
        be_app->Lock();
        be_app->Quit();
        be_app = NULL;
    }
}

/* called back by BSoundPlayer */
static void audioplay_callback(void *cookie, void *buffer, size_t bufferSize, const media_raw_audio_format &format)
{
    AudioData *s;
    size_t len, amount;
    unsigned char *buf = (unsigned char *)buffer;

    s = (AudioData *)cookie;
    if (s->has_quit)
        return;
    while (bufferSize > 0) {
#ifdef PERF_CHECK
        bigtime_t t;
        t = system_time();
#endif
        len = MIN(AUDIO_BLOCK_SIZE, bufferSize);
        if (acquire_sem_etc(s->output_sem, len, B_CAN_INTERRUPT, 0LL) < B_OK) {
            s->has_quit = 1;
            s->player->SetHasData(false);
            return;
        }
        amount = MIN(len, (AUDIO_BUFFER_SIZE - s->output_index));
        memcpy(buf, &s->buffer[s->output_index], amount);
        s->output_index += amount;
        if (s->output_index >= AUDIO_BUFFER_SIZE) {
            s->output_index %= AUDIO_BUFFER_SIZE;
            memcpy(buf + amount, &s->buffer[s->output_index], len - amount);
            s->output_index += len-amount;
            s->output_index %= AUDIO_BUFFER_SIZE;
        }
        release_sem_etc(s->input_sem, len, 0);
#ifdef PERF_CHECK
        t = system_time() - t;
        s->starve_time = MAX(s->starve_time, t);
#endif
        buf += len;
        bufferSize -= len;
    }
}

static int audio_open(AudioData *s, int is_output)
{
    int p[2];
    int ret;
    media_raw_audio_format format;

    if (!is_output)
        return -EIO; /* not for now */
    s->input_sem = create_sem(AUDIO_BUFFER_SIZE, "ffmpeg_ringbuffer_input");
//    s->input_sem = create_sem(AUDIO_BLOCK_SIZE, "ffmpeg_ringbuffer_input");
    if (s->input_sem < B_OK)
        return -EIO;
    s->output_sem = create_sem(0, "ffmpeg_ringbuffer_output");
    if (s->output_sem < B_OK) {
        delete_sem(s->input_sem);
        return -EIO;
    }
    s->input_index = 0;
    s->output_index = 0;
    s->queued = 0;
    create_bapp_if_needed();
    s->frame_size = AUDIO_BLOCK_SIZE;
    format = media_raw_audio_format::wildcard;
    format.format = media_raw_audio_format::B_AUDIO_SHORT;
    format.byte_order = B_HOST_IS_LENDIAN ? B_MEDIA_LITTLE_ENDIAN : B_MEDIA_BIG_ENDIAN;
    format.channel_count = s->channels;
    format.buffer_size = s->frame_size;
    format.frame_rate = s->sample_rate;
    s->player = new BSoundPlayer(&format, "ffmpeg output", audioplay_callback);
    if (s->player->InitCheck() != B_OK) {
        delete s->player;
        s->player = NULL;
    if (s->input_sem)
        delete_sem(s->input_sem);
    if (s->output_sem)
        delete_sem(s->output_sem);
        return -EIO;
    }
    s->player->SetCookie(s);
    s->player->SetVolume(1.0);
    s->player->Start();
    s->player->SetHasData(true);
    /* bump up the priority (avoid realtime though) */
    set_thread_priority(find_thread(NULL), B_DISPLAY_PRIORITY+1);
    return 0;
}

static int audio_close(AudioData *s)
{
    if (s->input_sem)
        delete_sem(s->input_sem);
    if (s->output_sem)
        delete_sem(s->output_sem);
    s->has_quit = 1;
    if (s->player) {
        s->player->Stop();
    }
    if (s->player)
        delete s->player;
    destroy_bapp_if_needed();
    return 0;
}

/* sound output support */
static int audio_write_header(AVFormatContext *s1)
{
    AudioData *s = (AudioData *)s1->priv_data;
    AVStream *st;
    int ret;

    st = s1->streams[0];
    s->sample_rate = st->codec.sample_rate;
    s->channels = st->codec.channels;
    ret = audio_open(s, 1);
    if (ret < 0)
        return -EIO;
    return 0;
}

static int audio_write_packet(AVFormatContext *s1, int stream_index,
                              uint8_t *buf, int size, int force_pts)
{
    AudioData *s = (AudioData *)s1->priv_data;
    int len, ret;
#ifdef PERF_CHECK
    bigtime_t t = s->starve_time;
    s->starve_time = 0;
    printf("starve_time: %lld    \n", t);
#endif
    while (size > 0) {
        int amount;
        len = MIN(size, AUDIO_BLOCK_SIZE);
        if (acquire_sem_etc(s->input_sem, len, B_CAN_INTERRUPT, 0LL) < B_OK)
            return -EIO;
        amount = MIN(len, (AUDIO_BUFFER_SIZE - s->input_index));
        memcpy(&s->buffer[s->input_index], buf, amount);
        s->input_index += amount;
        if (s->input_index >= AUDIO_BUFFER_SIZE) {
            s->input_index %= AUDIO_BUFFER_SIZE;
            memcpy(&s->buffer[s->input_index], buf + amount, len - amount);
            s->input_index += len - amount;
        }
        release_sem_etc(s->output_sem, len, 0);
        buf += len;
        size -= len;
    }
    return 0;
}

static int audio_write_trailer(AVFormatContext *s1)
{
    AudioData *s = (AudioData *)s1->priv_data;

    audio_close(s);
    return 0;
}

/* grab support */

static int audio_read_header(AVFormatContext *s1, AVFormatParameters *ap)
{
    AudioData *s = (AudioData *)s1->priv_data;
    AVStream *st;
    int ret;

    if (!ap || ap->sample_rate <= 0 || ap->channels <= 0)
        return -1;

    st = av_new_stream(s1, 0);
    if (!st) {
        return -ENOMEM;
    }
    s->sample_rate = ap->sample_rate;
    s->channels = ap->channels;

    ret = audio_open(s, 0);
    if (ret < 0) {
        av_free(st);
        return -EIO;
    } else {
        /* take real parameters */
        st->codec.codec_type = CODEC_TYPE_AUDIO;
        st->codec.codec_id = s->codec_id;
        st->codec.sample_rate = s->sample_rate;
        st->codec.channels = s->channels;
        return 0;
    }
}

static int audio_read_packet(AVFormatContext *s1, AVPacket *pkt)
{
    AudioData *s = (AudioData *)s1->priv_data;
    int ret;

    if (av_new_packet(pkt, s->frame_size) < 0)
        return -EIO;
    for(;;) {
        ret = read(s->fd, pkt->data, pkt->size);
        if (ret > 0)
            break;
        if (ret == -1 && (errno == EAGAIN || errno == EINTR)) {
            av_free_packet(pkt);
            pkt->size = 0;
            return 0;
        }
        if (!(ret == 0 || (ret == -1 && (errno == EAGAIN || errno == EINTR)))) {
            av_free_packet(pkt);
            return -EIO;
        }
    }
    pkt->size = ret;
    return 0;
}

static int audio_read_close(AVFormatContext *s1)
{
    AudioData *s = (AudioData *)s1->priv_data;

    audio_close(s);
    return 0;
}

AVInputFormat audio_in_format = {
    "audio_device",
    "audio grab and output",
    sizeof(AudioData),
    NULL,
    audio_read_header,
    audio_read_packet,
    audio_read_close,
    NULL,
    AVFMT_NOFILE,
};

AVOutputFormat audio_out_format = {
    "audio_device",
    "audio grab and output",
    "",
    "",
    sizeof(AudioData),
#ifdef WORDS_BIGENDIAN
    CODEC_ID_PCM_S16BE,
#else
    CODEC_ID_PCM_S16LE,
#endif
    CODEC_ID_NONE,
    audio_write_header,
    audio_write_packet,
    audio_write_trailer,
    AVFMT_NOFILE,
};

extern "C" {

int audio_init(void)
{
    main_thid = find_thread(NULL);
    av_register_input_format(&audio_in_format);
    av_register_output_format(&audio_out_format);
    return 0;
}

} // "C"
Commit	Line	Data
dfdfa47c FR	1	/*
	2	* BeOS audio play interface
	3	* Copyright (c) 2000, 2001 Fabrice Bellard.
	4	*
	5	* This library is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU Lesser General Public
	7	* License as published by the Free Software Foundation; either
	8	* version 2 of the License, or (at your option) any later version.
	9	*
	10	* This library is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* Lesser General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU Lesser General Public
	16	* License along with this library; if not, write to the Free Software
	17	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	18	*/
	19
	20	#include <signal.h>
	21	#include <stdlib.h>
	22	#include <stdio.h>
	23	#include <string.h>
	24	#include <unistd.h>
	25	#include <sys/time.h>
	26
	27	#include <Application.h>
	28	#include <SoundPlayer.h>
	29
	30	extern "C" {
	31	#include "avformat.h"
	32	}
	33
3810fbf5 FR	34	/* enable performance checks */
3810fbf5 FR	35	//#define PERF_CHECK
dfdfa47c	36
dfdfa47c	37	#define AUDIO_BLOCK_SIZE 4096
3810fbf5 FR	38	//#define AUDIO_BLOCK_SIZE 2048
	39	#define AUDIO_BLOCK_COUNT 8
	40
	41	#define AUDIO_BUFFER_SIZE (AUDIO_BLOCK_SIZE*AUDIO_BLOCK_COUNT)
	42
dfdfa47c	43	typedef struct {
50515cdd	44	int fd; // UNUSED
dfdfa47c FR	45	int sample_rate;
	46	int channels;
	47	int frame_size; /* in bytes ! */
	48	CodecID codec_id;
d271b84b	49	uint8_t buffer[AUDIO_BUFFER_SIZE];
dfdfa47c	50	int buffer_ptr;
3810fbf5 FR	51	/* ring buffer */
	52	sem_id input_sem;
	53	int input_index;
	54	sem_id output_sem;
	55	int output_index;
	56	int queued;
dfdfa47c FR	57	BSoundPlayer *player;
dfdfa47c FR	58	int has_quit; /* signal callbacks not to wait */
3810fbf5	59	volatile bigtime_t starve_time;
dfdfa47c FR	60	} AudioData;
dfdfa47c FR	61
3810fbf5 FR	62	static thread_id main_thid;
3810fbf5 FR	63	static thread_id bapp_thid;
dfdfa47c	64	static int own_BApp_created = 0;
3810fbf5	65	static int refcount = 0;
dfdfa47c FR	66
	67	/* create the BApplication and Run() it */
	68	static int32 bapp_thread(void *arg)
	69	{
	70	new BApplication("application/x-vnd.ffmpeg");
	71	own_BApp_created = 1;
	72	be_app->Run();
	73	/* kill the process group */
3810fbf5 FR	74	// kill(0, SIGINT);
3810fbf5 FR	75	// kill(main_thid, SIGHUP);
dfdfa47c FR	76	return B_OK;
	77	}
	78
3810fbf5 FR	79	/* create the BApplication only if needed */
	80	static void create_bapp_if_needed(void)
	81	{
	82	if (refcount++ == 0) {
	83	/* needed by libmedia */
	84	if (be_app == NULL) {
	85	bapp_thid = spawn_thread(bapp_thread, "ffmpeg BApplication", B_NORMAL_PRIORITY, NULL);
	86	resume_thread(bapp_thid);
	87	while (!own_BApp_created)
	88	snooze(50000);
	89	}
	90	}
	91	}
	92
	93	static void destroy_bapp_if_needed(void)
	94	{
	95	if (--refcount == 0 && own_BApp_created) {
	96	be_app->Lock();
	97	be_app->Quit();
	98	be_app = NULL;
	99	}
	100	}
	101
dfdfa47c FR	102	/* called back by BSoundPlayer */
	103	static void audioplay_callback(void cookie, void buffer, size_t bufferSize, const media_raw_audio_format &format)
	104	{
	105	AudioData *s;
3810fbf5	106	size_t len, amount;
dfdfa47c FR	107	unsigned char buf = (unsigned char )buffer;
	108
	109	s = (AudioData *)cookie;
	110	if (s->has_quit)
	111	return;
	112	while (bufferSize > 0) {
3810fbf5 FR	113	#ifdef PERF_CHECK
	114	bigtime_t t;
	115	t = system_time();
	116	#endif
3810fbf5 FR	117	len = MIN(AUDIO_BLOCK_SIZE, bufferSize);
	118	if (acquire_sem_etc(s->output_sem, len, B_CAN_INTERRUPT, 0LL) < B_OK) {
	119	s->has_quit = 1;
dfdfa47c FR	120	s->player->SetHasData(false);
	121	return;
	122	}
3810fbf5 FR	123	amount = MIN(len, (AUDIO_BUFFER_SIZE - s->output_index));
	124	memcpy(buf, &s->buffer[s->output_index], amount);
	125	s->output_index += amount;
	126	if (s->output_index >= AUDIO_BUFFER_SIZE) {
	127	s->output_index %= AUDIO_BUFFER_SIZE;
	128	memcpy(buf + amount, &s->buffer[s->output_index], len - amount);
	129	s->output_index += len-amount;
	130	s->output_index %= AUDIO_BUFFER_SIZE;
	131	}
	132	release_sem_etc(s->input_sem, len, 0);
3810fbf5 FR	133	#ifdef PERF_CHECK
	134	t = system_time() - t;
	135	s->starve_time = MAX(s->starve_time, t);
	136	#endif
3810fbf5 FR	137	buf += len;
3810fbf5 FR	138	bufferSize -= len;
dfdfa47c FR	139	}
	140	}
	141
	142	static int audio_open(AudioData *s, int is_output)
	143	{
	144	int p[2];
	145	int ret;
	146	media_raw_audio_format format;
	147
	148	if (!is_output)
	149	return -EIO; /* not for now */
3810fbf5 FR	150	s->input_sem = create_sem(AUDIO_BUFFER_SIZE, "ffmpeg_ringbuffer_input");
	151	// s->input_sem = create_sem(AUDIO_BLOCK_SIZE, "ffmpeg_ringbuffer_input");
	152	if (s->input_sem < B_OK)
	153	return -EIO;
	154	s->output_sem = create_sem(0, "ffmpeg_ringbuffer_output");
	155	if (s->output_sem < B_OK) {
	156	delete_sem(s->input_sem);
	157	return -EIO;
	158	}
	159	s->input_index = 0;
	160	s->output_index = 0;
	161	s->queued = 0;
3810fbf5	162	create_bapp_if_needed();
dfdfa47c FR	163	s->frame_size = AUDIO_BLOCK_SIZE;
	164	format = media_raw_audio_format::wildcard;
	165	format.format = media_raw_audio_format::B_AUDIO_SHORT;
	166	format.byte_order = B_HOST_IS_LENDIAN ? B_MEDIA_LITTLE_ENDIAN : B_MEDIA_BIG_ENDIAN;
	167	format.channel_count = s->channels;
	168	format.buffer_size = s->frame_size;
	169	format.frame_rate = s->sample_rate;
	170	s->player = new BSoundPlayer(&format, "ffmpeg output", audioplay_callback);
	171	if (s->player->InitCheck() != B_OK) {
	172	delete s->player;
	173	s->player = NULL;
3810fbf5 FR	174	if (s->input_sem)
	175	delete_sem(s->input_sem);
	176	if (s->output_sem)
	177	delete_sem(s->output_sem);
dfdfa47c FR	178	return -EIO;
	179	}
	180	s->player->SetCookie(s);
	181	s->player->SetVolume(1.0);
	182	s->player->Start();
	183	s->player->SetHasData(true);
3810fbf5	184	/* bump up the priority (avoid realtime though) */
3c97fdb8	185	set_thread_priority(find_thread(NULL), B_DISPLAY_PRIORITY+1);
dfdfa47c FR	186	return 0;
	187	}
	188
	189	static int audio_close(AudioData *s)
	190	{
3810fbf5 FR	191	if (s->input_sem)
	192	delete_sem(s->input_sem);
	193	if (s->output_sem)
	194	delete_sem(s->output_sem);
dfdfa47c FR	195	s->has_quit = 1;
	196	if (s->player) {
	197	s->player->Stop();
	198	}
	199	if (s->player)
	200	delete s->player;
3810fbf5	201	destroy_bapp_if_needed();
dfdfa47c FR	202	return 0;
	203	}
	204
	205	/* sound output support */
	206	static int audio_write_header(AVFormatContext *s1)
	207	{
	208	AudioData s = (AudioData )s1->priv_data;
	209	AVStream *st;
	210	int ret;
	211
	212	st = s1->streams[0];
	213	s->sample_rate = st->codec.sample_rate;
	214	s->channels = st->codec.channels;
	215	ret = audio_open(s, 1);
	216	if (ret < 0)
	217	return -EIO;
	218	return 0;
	219	}
	220
	221	static int audio_write_packet(AVFormatContext *s1, int stream_index,
d271b84b	222	uint8_t *buf, int size, int force_pts)
dfdfa47c FR	223	{
	224	AudioData s = (AudioData )s1->priv_data;
	225	int len, ret;
3810fbf5 FR	226	#ifdef PERF_CHECK
	227	bigtime_t t = s->starve_time;
	228	s->starve_time = 0;
	229	printf("starve_time: %lld \n", t);
	230	#endif
3810fbf5 FR	231	while (size > 0) {
	232	int amount;
	233	len = MIN(size, AUDIO_BLOCK_SIZE);
	234	if (acquire_sem_etc(s->input_sem, len, B_CAN_INTERRUPT, 0LL) < B_OK)
	235	return -EIO;
	236	amount = MIN(len, (AUDIO_BUFFER_SIZE - s->input_index));
	237	memcpy(&s->buffer[s->input_index], buf, amount);
	238	s->input_index += amount;
	239	if (s->input_index >= AUDIO_BUFFER_SIZE) {
	240	s->input_index %= AUDIO_BUFFER_SIZE;
	241	memcpy(&s->buffer[s->input_index], buf + amount, len - amount);
	242	s->input_index += len - amount;
	243	}
	244	release_sem_etc(s->output_sem, len, 0);
	245	buf += len;
	246	size -= len;
	247	}
dfdfa47c FR	248	return 0;
	249	}
	250
	251	static int audio_write_trailer(AVFormatContext *s1)
	252	{
	253	AudioData s = (AudioData )s1->priv_data;
	254
	255	audio_close(s);
	256	return 0;
	257	}
	258
	259	/* grab support */
	260
	261	static int audio_read_header(AVFormatContext s1, AVFormatParameters ap)
	262	{
	263	AudioData s = (AudioData )s1->priv_data;
	264	AVStream *st;
	265	int ret;
	266
	267	if (!ap \|\| ap->sample_rate <= 0 \|\| ap->channels <= 0)
	268	return -1;
	269
	270	st = av_new_stream(s1, 0);
	271	if (!st) {
	272	return -ENOMEM;
	273	}
	274	s->sample_rate = ap->sample_rate;
	275	s->channels = ap->channels;
	276
	277	ret = audio_open(s, 0);
	278	if (ret < 0) {
	279	av_free(st);
	280	return -EIO;
	281	} else {
	282	/* take real parameters */
	283	st->codec.codec_type = CODEC_TYPE_AUDIO;
	284	st->codec.codec_id = s->codec_id;
	285	st->codec.sample_rate = s->sample_rate;
	286	st->codec.channels = s->channels;
	287	return 0;
	288	}
	289	}
	290
	291	static int audio_read_packet(AVFormatContext s1, AVPacket pkt)
	292	{
	293	AudioData s = (AudioData )s1->priv_data;
	294	int ret;
	295
	296	if (av_new_packet(pkt, s->frame_size) < 0)
	297	return -EIO;
	298	for(;;) {
	299	ret = read(s->fd, pkt->data, pkt->size);
	300	if (ret > 0)
	301	break;
	302	if (ret == -1 && (errno == EAGAIN \|\| errno == EINTR)) {
	303	av_free_packet(pkt);
	304	pkt->size = 0;
	305	return 0;
	306	}
	307	if (!(ret == 0 \|\| (ret == -1 && (errno == EAGAIN \|\| errno == EINTR)))) {
	308	av_free_packet(pkt);
	309	return -EIO;
	310	}
	311	}
312	pkt->size = ret;
dfdfa47c FR	313	return 0;
	314	}
	315
	316	static int audio_read_close(AVFormatContext *s1)
	317	{
	318	AudioData s = (AudioData )s1->priv_data;
	319
	320	audio_close(s);
	321	return 0;
	322	}
	323
	324	AVInputFormat audio_in_format = {
	325	"audio_device",
	326	"audio grab and output",
	327	sizeof(AudioData),
	328	NULL,
	329	audio_read_header,
	330	audio_read_packet,
	331	audio_read_close,
	332	NULL,
	333	AVFMT_NOFILE,
	334	};
	335
	336	AVOutputFormat audio_out_format = {
	337	"audio_device",
	338	"audio grab and output",
	339	"",
	340	"",
	341	sizeof(AudioData),
	342	#ifdef WORDS_BIGENDIAN
	343	CODEC_ID_PCM_S16BE,
	344	#else
	345	CODEC_ID_PCM_S16LE,
	346	#endif
	347	CODEC_ID_NONE,
	348	audio_write_header,
	349	audio_write_packet,
	350	audio_write_trailer,
	351	AVFMT_NOFILE,
	352	};
	353
	354	extern "C" {
	355
	356	int audio_init(void)
	357	{
3810fbf5	358	main_thid = find_thread(NULL);
dfdfa47c FR	359	av_register_input_format(&audio_in_format);
	360	av_register_output_format(&audio_out_format);
	361	return 0;
	362	}
	363
	364	} // "C"
	365