[libsigrok.git] / src / input / wav.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <ctype.h>
#include <string.h>
#include <stdint.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"

#define LOG_PREFIX "input/wav"

/* How many bytes at a time to process and send to the session bus. */
#define CHUNK_SIZE 4096

/* Minimum size of header + 1 8-bit mono PCM sample. */
#define MIN_DATA_CHUNK_OFFSET    45

/* Expect to find the "data" chunk within this offset from the start. */
#define MAX_DATA_CHUNK_OFFSET    256

#define WAVE_FORMAT_PCM          0x0001
#define WAVE_FORMAT_IEEE_FLOAT   0x0003
#define WAVE_FORMAT_EXTENSIBLE   0xfffe

struct context {
	gboolean started;
	int fmt_code;
	uint64_t samplerate;
	int samplesize;
	int num_channels;
	int unitsize;
	gboolean found_data;
};

static int parse_wav_header(GString *buf, struct context *inc)
{
	uint64_t samplerate;
	unsigned int fmt_code, samplesize, num_channels, unitsize;

	if (buf->len < MIN_DATA_CHUNK_OFFSET)
		return SR_ERR_NA;

	fmt_code = RL16(buf->str + 20);
	samplerate = RL32(buf->str + 24);

	samplesize = RL16(buf->str + 32);
	num_channels = RL16(buf->str + 22);
	if (num_channels == 0)
		return SR_ERR;
	unitsize = samplesize / num_channels;
	if (unitsize != 1 && unitsize != 2 && unitsize != 4) {
		sr_err("Only 8, 16 or 32 bits per sample supported.");
		return SR_ERR_DATA;
	}

	if (fmt_code == WAVE_FORMAT_PCM) {
	} else if (fmt_code == WAVE_FORMAT_IEEE_FLOAT) {
		if (unitsize != 4) {
			sr_err("only 32-bit floats supported.");
			return SR_ERR_DATA;
		}
	} else if (fmt_code == WAVE_FORMAT_EXTENSIBLE) {
		if (buf->len < 70)
			/* Not enough for extensible header and next chunk. */
			return SR_ERR_NA;

		if (RL16(buf->str + 16) != 40) {
			sr_err("WAV extensible format chunk must be 40 bytes.");
			return SR_ERR;
		}
		if (RL16(buf->str + 36) != 22) {
			sr_err("WAV extension must be 22 bytes.");
			return SR_ERR;
		}
		if (RL16(buf->str + 34) != RL16(buf->str + 38)) {
			sr_err("Reduced valid bits per sample not supported.");
			return SR_ERR_DATA;
		}
		/* Real format code is the first two bytes of the GUID. */
		fmt_code = RL16(buf->str + 44);
		if (fmt_code != WAVE_FORMAT_PCM && fmt_code != WAVE_FORMAT_IEEE_FLOAT) {
			sr_err("Only PCM and floating point samples are supported.");
			return SR_ERR_DATA;
		}
		if (fmt_code == WAVE_FORMAT_IEEE_FLOAT && unitsize != 4) {
			sr_err("only 32-bit floats supported.");
			return SR_ERR_DATA;
		}
	} else {
		sr_err("Only PCM and floating point samples are supported.");
		return SR_ERR_DATA;
	}

	if (inc) {
		inc->fmt_code = fmt_code;
		inc->samplerate = samplerate;
		inc->samplesize = samplesize;
		inc->num_channels = num_channels;
		inc->unitsize = unitsize;
		inc->found_data = FALSE;
	}

	return SR_OK;
}

static int format_match(GHashTable *metadata)
{
	GString *buf;
	int ret;

	buf = g_hash_table_lookup(metadata, GINT_TO_POINTER(SR_INPUT_META_HEADER));
	if (strncmp(buf->str, "RIFF", 4))
		return SR_ERR;
	if (strncmp(buf->str + 8, "WAVE", 4))
		return SR_ERR;
	if (strncmp(buf->str + 12, "fmt ", 4))
		return SR_ERR;
	/*
	 * Only gets called when we already know this is a WAV file, so
	 * this parser can log error messages.
	 */
	if ((ret = parse_wav_header(buf, NULL)) != SR_OK)
		return ret;

	return SR_OK;
}

static int init(struct sr_input *in, GHashTable *options)
{
	(void)options;

	in->sdi = g_malloc0(sizeof(struct sr_dev_inst));
	in->priv = g_malloc0(sizeof(struct context));

	return SR_OK;
}

static int find_data_chunk(GString *buf, int initial_offset)
{
	unsigned int offset, i;

	offset = initial_offset;
	while (offset < MIN(MAX_DATA_CHUNK_OFFSET, buf->len)) {
		if (!memcmp(buf->str + offset, "data", 4))
			/* Skip into the samples. */
			return offset + 8;
		for (i = 0; i < 4; i++) {
			if (!isalpha(buf->str[offset + i])
					&& !isascii(buf->str[offset + i])
					&& !isblank(buf->str[offset + i]))
				/* Doesn't look like a chunk ID. */
				return -1;
		}
		/* Skip past this chunk. */
		offset += 8 + RL32(buf->str + offset + 4);
	}

	return offset;
}

static void send_chunk(const struct sr_input *in, int offset, int num_samples)
{
	struct sr_datafeed_packet packet;
	struct sr_datafeed_analog analog;
	struct context *inc;
	float fdata[CHUNK_SIZE];
	uint64_t sample;
	int total_samples, samplenum;
	char *s, *d;

	inc = in->priv;

	s = in->buf->str + offset;
	d = (char *)fdata;
	memset(fdata, 0, CHUNK_SIZE);
	total_samples = num_samples * inc->num_channels;
	for (samplenum = 0; samplenum < total_samples; samplenum++) {
		if (inc->fmt_code == WAVE_FORMAT_PCM) {
			sample = 0;
			memcpy(&sample, s, inc->unitsize);
			switch (inc->samplesize) {
			case 1:
				/* 8-bit PCM samples are unsigned. */
				fdata[samplenum] = (uint8_t)sample / (float)255;
				break;
			case 2:
				fdata[samplenum] = RL16S(&sample) / (float)INT16_MAX;
				break;
			case 4:
				fdata[samplenum] = RL32S(&sample) / (float)INT32_MAX;
				break;
			}
		} else {
			/* BINARY32 float */
#ifdef WORDS_BIGENDIAN
			int i;
			for (i = 0; i < inc->unitsize; i++)
				d[i] = s[inc->unitsize - 1 - i];
#else
			memcpy(d, s, inc->unitsize);
#endif
		}
		s += inc->unitsize;
		d += inc->unitsize;
	}
	packet.type = SR_DF_ANALOG;
	packet.payload = &analog;
	analog.channels = in->sdi->channels;
	analog.num_samples = num_samples;
	analog.mq = 0;
	analog.mqflags = 0;
	analog.unit = 0;
	analog.data = fdata;
	sr_session_send(in->sdi, &packet);
}

static int process_buffer(struct sr_input *in)
{
	struct context *inc;
	struct sr_datafeed_packet packet;
	struct sr_datafeed_meta meta;
	struct sr_config *src;
	int offset, chunk_samples, total_samples, processed, max_chunk_samples;
	int num_samples, i;
	char channelname[8];

	inc = in->priv;
	if (!inc->started) {
		for (i = 0; i < inc->num_channels; i++) {
			snprintf(channelname, 8, "CH%d", i + 1);
			sr_channel_new(in->sdi, i, SR_CHANNEL_ANALOG, TRUE, channelname);
		}

		std_session_send_df_header(in->sdi, LOG_PREFIX);

		packet.type = SR_DF_META;
		packet.payload = &meta;
		src = sr_config_new(SR_CONF_SAMPLERATE, g_variant_new_uint64(inc->samplerate));
		meta.config = g_slist_append(NULL, src);
		sr_session_send(in->sdi, &packet);
		sr_config_free(src);

		inc->started = TRUE;
	}

	if (!inc->found_data) {
		/* Skip past size of 'fmt ' chunk. */
		i = 20 + RL32(in->buf->str + 16);
		offset = find_data_chunk(in->buf, i);
		if (offset < 0) {
			if (in->buf->len > MAX_DATA_CHUNK_OFFSET) {
				sr_err("Couldn't find data chunk.");
				return SR_ERR;
			}
		}
		inc->found_data = TRUE;
	} else
		offset = 0;

	/* Round off up to the last channels * unitsize boundary. */
	chunk_samples = (in->buf->len - offset) / inc->num_channels / inc->unitsize;
	max_chunk_samples = CHUNK_SIZE / inc->num_channels / inc->unitsize;
	processed = 0;
	total_samples = chunk_samples;
	while (processed < total_samples) {
		if (chunk_samples > max_chunk_samples)
			num_samples = max_chunk_samples;
		else
			num_samples = chunk_samples;
		send_chunk(in, offset, num_samples);
		offset += num_samples * inc->unitsize;
		chunk_samples -= num_samples;
		processed += num_samples;
	}

	if ((unsigned int)offset < in->buf->len) {
		/*
		 * The incoming buffer wasn't processed completely. Stash
		 * the leftover data for next time.
		 */
		g_string_erase(in->buf, 0, offset);
	} else
		g_string_truncate(in->buf, 0);

	return SR_OK;
}

static int receive(struct sr_input *in, GString *buf)
{
	struct context *inc;
	int ret;

	g_string_append_len(in->buf, buf->str, buf->len);

	if (in->buf->len < MIN_DATA_CHUNK_OFFSET) {
		/*
		 * Don't even try until there's enough room
		 * for the data segment to start.
		 */
		return SR_OK;
	}

	inc = in->priv;
	if (!in->sdi_ready) {
		if ((ret = parse_wav_header(in->buf, inc)) == SR_ERR_NA)
			/* Not enough data yet. */
			return SR_OK;
		else if (ret != SR_OK)
			return ret;

		/* sdi is ready, notify frontend. */
		in->sdi_ready = TRUE;
		return SR_OK;
	}

	ret = process_buffer(in);

	return ret;
}

static int end(struct sr_input *in)
{
	struct sr_datafeed_packet packet;
	struct context *inc;
	int ret;

	if (in->sdi_ready)
		ret = process_buffer(in);
	else
		ret = SR_OK;

	inc = in->priv;
	if (inc->started) {
		packet.type = SR_DF_END;
		sr_session_send(in->sdi, &packet);
	}

	return ret;
}

SR_PRIV struct sr_input_module input_wav = {
	.id = "wav",
	.name = "WAV",
	.desc = "WAV file",
	.exts = (const char*[]){"wav", NULL},
	.metadata = { SR_INPUT_META_HEADER | SR_INPUT_META_REQUIRED },
	.format_match = format_match,
	.init = init,
	.receive = receive,
	.end = end,
};
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
	5	*
	6	* This program is free software: you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation, either version 3 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	18	*/
	19
	20	#include <sys/types.h>
	21	#include <sys/stat.h>
	22	#include <unistd.h>
	23	#include <fcntl.h>
	24	#include <ctype.h>
	25	#include <string.h>
	26	#include <stdint.h>
	27	#include "libsigrok.h"
	28	#include "libsigrok-internal.h"
	29
	30	#define LOG_PREFIX "input/wav"
	31
	32	/* How many bytes at a time to process and send to the session bus. */
	33	#define CHUNK_SIZE 4096
	34
	35	/* Minimum size of header + 1 8-bit mono PCM sample. */
	36	#define MIN_DATA_CHUNK_OFFSET 45
	37
	38	/* Expect to find the "data" chunk within this offset from the start. */
	39	#define MAX_DATA_CHUNK_OFFSET 256
	40
	41	#define WAVE_FORMAT_PCM 0x0001
	42	#define WAVE_FORMAT_IEEE_FLOAT 0x0003
	43	#define WAVE_FORMAT_EXTENSIBLE 0xfffe
	44
	45	struct context {
	46	gboolean started;
	47	int fmt_code;
	48	uint64_t samplerate;
	49	int samplesize;
	50	int num_channels;
	51	int unitsize;
	52	gboolean found_data;
	53	};
	54
	55	static int parse_wav_header(GString buf, struct context inc)
	56	{
	57	uint64_t samplerate;
	58	unsigned int fmt_code, samplesize, num_channels, unitsize;
	59
	60	if (buf->len < MIN_DATA_CHUNK_OFFSET)
	61	return SR_ERR_NA;
	62
	63	fmt_code = RL16(buf->str + 20);
	64	samplerate = RL32(buf->str + 24);
	65
	66	samplesize = RL16(buf->str + 32);
	67	num_channels = RL16(buf->str + 22);
	68	if (num_channels == 0)
	69	return SR_ERR;
	70	unitsize = samplesize / num_channels;
	71	if (unitsize != 1 && unitsize != 2 && unitsize != 4) {
	72	sr_err("Only 8, 16 or 32 bits per sample supported.");
	73	return SR_ERR_DATA;
	74	}
	75
	76	if (fmt_code == WAVE_FORMAT_PCM) {
	77	} else if (fmt_code == WAVE_FORMAT_IEEE_FLOAT) {
	78	if (unitsize != 4) {
	79	sr_err("only 32-bit floats supported.");
	80	return SR_ERR_DATA;
	81	}
	82	} else if (fmt_code == WAVE_FORMAT_EXTENSIBLE) {
	83	if (buf->len < 70)
	84	/* Not enough for extensible header and next chunk. */
	85	return SR_ERR_NA;
	86
	87	if (RL16(buf->str + 16) != 40) {
	88	sr_err("WAV extensible format chunk must be 40 bytes.");
	89	return SR_ERR;
	90	}
	91	if (RL16(buf->str + 36) != 22) {
	92	sr_err("WAV extension must be 22 bytes.");
	93	return SR_ERR;
	94	}
	95	if (RL16(buf->str + 34) != RL16(buf->str + 38)) {
	96	sr_err("Reduced valid bits per sample not supported.");
	97	return SR_ERR_DATA;
	98	}
	99	/* Real format code is the first two bytes of the GUID. */
	100	fmt_code = RL16(buf->str + 44);
	101	if (fmt_code != WAVE_FORMAT_PCM && fmt_code != WAVE_FORMAT_IEEE_FLOAT) {
	102	sr_err("Only PCM and floating point samples are supported.");
	103	return SR_ERR_DATA;
	104	}
	105	if (fmt_code == WAVE_FORMAT_IEEE_FLOAT && unitsize != 4) {
	106	sr_err("only 32-bit floats supported.");
	107	return SR_ERR_DATA;
	108	}
	109	} else {
	110	sr_err("Only PCM and floating point samples are supported.");
	111	return SR_ERR_DATA;
	112	}
	113
	114	if (inc) {
	115	inc->fmt_code = fmt_code;
	116	inc->samplerate = samplerate;
	117	inc->samplesize = samplesize;
	118	inc->num_channels = num_channels;
	119	inc->unitsize = unitsize;
	120	inc->found_data = FALSE;
	121	}
	122
	123	return SR_OK;
	124	}
	125
	126	static int format_match(GHashTable *metadata)
	127	{
	128	GString *buf;
	129	int ret;
	130
	131	buf = g_hash_table_lookup(metadata, GINT_TO_POINTER(SR_INPUT_META_HEADER));
	132	if (strncmp(buf->str, "RIFF", 4))
	133	return SR_ERR;
	134	if (strncmp(buf->str + 8, "WAVE", 4))
	135	return SR_ERR;
	136	if (strncmp(buf->str + 12, "fmt ", 4))
	137	return SR_ERR;
	138	/*
	139	* Only gets called when we already know this is a WAV file, so
	140	* this parser can log error messages.
	141	*/
	142	if ((ret = parse_wav_header(buf, NULL)) != SR_OK)
	143	return ret;
	144
	145	return SR_OK;
	146	}
	147
	148	static int init(struct sr_input in, GHashTable options)
	149	{
	150	(void)options;
	151
	152	in->sdi = g_malloc0(sizeof(struct sr_dev_inst));
	153	in->priv = g_malloc0(sizeof(struct context));
	154
	155	return SR_OK;
	156	}
	157
	158	static int find_data_chunk(GString *buf, int initial_offset)
	159	{
	160	unsigned int offset, i;
	161
	162	offset = initial_offset;
	163	while (offset < MIN(MAX_DATA_CHUNK_OFFSET, buf->len)) {
	164	if (!memcmp(buf->str + offset, "data", 4))
	165	/* Skip into the samples. */
	166	return offset + 8;
	167	for (i = 0; i < 4; i++) {
	168	if (!isalpha(buf->str[offset + i])
	169	&& !isascii(buf->str[offset + i])
	170	&& !isblank(buf->str[offset + i]))
	171	/* Doesn't look like a chunk ID. */
	172	return -1;
	173	}
	174	/* Skip past this chunk. */
	175	offset += 8 + RL32(buf->str + offset + 4);
	176	}
	177
	178	return offset;
	179	}
	180
	181	static void send_chunk(const struct sr_input *in, int offset, int num_samples)
	182	{
	183	struct sr_datafeed_packet packet;
	184	struct sr_datafeed_analog analog;
	185	struct context *inc;
	186	float fdata[CHUNK_SIZE];
	187	uint64_t sample;
	188	int total_samples, samplenum;
	189	char s, d;
	190
	191	inc = in->priv;
	192
	193	s = in->buf->str + offset;
	194	d = (char *)fdata;
	195	memset(fdata, 0, CHUNK_SIZE);
	196	total_samples = num_samples * inc->num_channels;
	197	for (samplenum = 0; samplenum < total_samples; samplenum++) {
	198	if (inc->fmt_code == WAVE_FORMAT_PCM) {
	199	sample = 0;
	200	memcpy(&sample, s, inc->unitsize);
	201	switch (inc->samplesize) {
	202	case 1:
	203	/* 8-bit PCM samples are unsigned. */
	204	fdata[samplenum] = (uint8_t)sample / (float)255;
	205	break;
	206	case 2:
	207	fdata[samplenum] = RL16S(&sample) / (float)INT16_MAX;
	208	break;
	209	case 4:
	210	fdata[samplenum] = RL32S(&sample) / (float)INT32_MAX;
	211	break;
	212	}
	213	} else {
	214	/* BINARY32 float */
	215	#ifdef WORDS_BIGENDIAN
	216	int i;
	217	for (i = 0; i < inc->unitsize; i++)
	218	d[i] = s[inc->unitsize - 1 - i];
	219	#else
	220	memcpy(d, s, inc->unitsize);
	221	#endif
	222	}
	223	s += inc->unitsize;
	224	d += inc->unitsize;
	225	}
	226	packet.type = SR_DF_ANALOG;
	227	packet.payload = &analog;
	228	analog.channels = in->sdi->channels;
	229	analog.num_samples = num_samples;
	230	analog.mq = 0;
	231	analog.mqflags = 0;
	232	analog.unit = 0;
	233	analog.data = fdata;
	234	sr_session_send(in->sdi, &packet);
	235	}
	236
	237	static int process_buffer(struct sr_input *in)
	238	{
	239	struct context *inc;
	240	struct sr_datafeed_packet packet;
	241	struct sr_datafeed_meta meta;
	242	struct sr_config *src;
	243	int offset, chunk_samples, total_samples, processed, max_chunk_samples;
	244	int num_samples, i;
	245	char channelname[8];
	246
	247	inc = in->priv;
	248	if (!inc->started) {
	249	for (i = 0; i < inc->num_channels; i++) {
	250	snprintf(channelname, 8, "CH%d", i + 1);
	251	sr_channel_new(in->sdi, i, SR_CHANNEL_ANALOG, TRUE, channelname);
	252	}
	253
	254	std_session_send_df_header(in->sdi, LOG_PREFIX);
	255
	256	packet.type = SR_DF_META;
	257	packet.payload = &meta;
	258	src = sr_config_new(SR_CONF_SAMPLERATE, g_variant_new_uint64(inc->samplerate));
	259	meta.config = g_slist_append(NULL, src);
	260	sr_session_send(in->sdi, &packet);
	261	sr_config_free(src);
	262
	263	inc->started = TRUE;
	264	}
	265
	266	if (!inc->found_data) {
	267	/* Skip past size of 'fmt ' chunk. */
	268	i = 20 + RL32(in->buf->str + 16);
	269	offset = find_data_chunk(in->buf, i);
	270	if (offset < 0) {
	271	if (in->buf->len > MAX_DATA_CHUNK_OFFSET) {
	272	sr_err("Couldn't find data chunk.");
	273	return SR_ERR;
	274	}
	275	}
	276	inc->found_data = TRUE;
	277	} else
	278	offset = 0;
	279
	280	/* Round off up to the last channels * unitsize boundary. */
	281	chunk_samples = (in->buf->len - offset) / inc->num_channels / inc->unitsize;
	282	max_chunk_samples = CHUNK_SIZE / inc->num_channels / inc->unitsize;
	283	processed = 0;
	284	total_samples = chunk_samples;
	285	while (processed < total_samples) {
	286	if (chunk_samples > max_chunk_samples)
	287	num_samples = max_chunk_samples;
	288	else
	289	num_samples = chunk_samples;
	290	send_chunk(in, offset, num_samples);
	291	offset += num_samples * inc->unitsize;
	292	chunk_samples -= num_samples;
	293	processed += num_samples;
	294	}
	295
	296	if ((unsigned int)offset < in->buf->len) {
	297	/*
	298	* The incoming buffer wasn't processed completely. Stash
	299	* the leftover data for next time.
	300	*/
	301	g_string_erase(in->buf, 0, offset);
	302	} else
	303	g_string_truncate(in->buf, 0);
	304
	305	return SR_OK;
	306	}
	307
	308	static int receive(struct sr_input in, GString buf)
	309	{
	310	struct context *inc;
	311	int ret;
	312
	313	g_string_append_len(in->buf, buf->str, buf->len);
	314
	315	if (in->buf->len < MIN_DATA_CHUNK_OFFSET) {
	316	/*
	317	* Don't even try until there's enough room
	318	* for the data segment to start.
	319	*/
	320	return SR_OK;
	321	}
	322
	323	inc = in->priv;
	324	if (!in->sdi_ready) {
	325	if ((ret = parse_wav_header(in->buf, inc)) == SR_ERR_NA)
	326	/* Not enough data yet. */
	327	return SR_OK;
	328	else if (ret != SR_OK)
	329	return ret;
	330
	331	/* sdi is ready, notify frontend. */
	332	in->sdi_ready = TRUE;
	333	return SR_OK;
	334	}
	335
	336	ret = process_buffer(in);
	337
	338	return ret;
	339	}
	340
	341	static int end(struct sr_input *in)
	342	{
	343	struct sr_datafeed_packet packet;
	344	struct context *inc;
	345	int ret;
	346
	347	if (in->sdi_ready)
	348	ret = process_buffer(in);
	349	else
	350	ret = SR_OK;
	351
	352	inc = in->priv;
	353	if (inc->started) {
	354	packet.type = SR_DF_END;
	355	sr_session_send(in->sdi, &packet);
	356	}
	357
	358	return ret;
	359	}
	360
	361	SR_PRIV struct sr_input_module input_wav = {
	362	.id = "wav",
	363	.name = "WAV",
	364	.desc = "WAV file",
	365	.exts = (const char*[]){"wav", NULL},
	366	.metadata = { SR_INPUT_META_HEADER \| SR_INPUT_META_REQUIRED },
	367	.format_match = format_match,
	368	.init = init,
	369	.receive = receive,
	370	.end = end,
	371	};