From e7ac127aec60ef14932419305f779eef1c576809 Mon Sep 17 00:00:00 2001 From: xufulong Date: Tue, 5 Oct 2021 17:36:24 +0800 Subject: [PATCH] remove hcom.c --- app/src/main/cpp/sox/CmakeLists.txt | 1 - app/src/main/cpp/sox/formats.h | 2 +- app/src/main/cpp/sox/hcom.c | 502 ---------------------------- 3 files changed, 1 insertion(+), 504 deletions(-) delete mode 100644 app/src/main/cpp/sox/hcom.c diff --git a/app/src/main/cpp/sox/CmakeLists.txt b/app/src/main/cpp/sox/CmakeLists.txt index 7bdfd8d..4b18b01 100644 --- a/app/src/main/cpp/sox/CmakeLists.txt +++ b/app/src/main/cpp/sox/CmakeLists.txt @@ -97,7 +97,6 @@ set(formats_srcs g723_40.c g72x.c g72x.h - hcom.c htk.c ima-fmt.c ima_rw.h diff --git a/app/src/main/cpp/sox/formats.h b/app/src/main/cpp/sox/formats.h index 6217759..da45a11 100644 --- a/app/src/main/cpp/sox/formats.h +++ b/app/src/main/cpp/sox/formats.h @@ -30,7 +30,7 @@ FORMAT(f4) FORMAT(f8) // FORMAT(gsrt) - FORMAT(hcom) +// FORMAT(hcom) FORMAT(htk) FORMAT(ima) FORMAT(la) diff --git a/app/src/main/cpp/sox/hcom.c b/app/src/main/cpp/sox/hcom.c deleted file mode 100644 index 594c870..0000000 --- a/app/src/main/cpp/sox/hcom.c +++ /dev/null @@ -1,502 +0,0 @@ -/* libSoX Macintosh HCOM format. - * These are really FSSD type files with Huffman compression, - * in MacBinary format. - * TODO: make the MacBinary format optional (so that .data files - * are also acceptable). (How to do this on output?) - * - * September 25, 1991 - * Copyright 1991 Guido van Rossum And Sundry Contributors - * This source code is freely redistributable and may be used for - * any purpose. This copyright notice must be maintained. - * Guido van Rossum And Sundry Contributors are not responsible for - * the consequences of using this software. - * - * April 28, 1998 - Chris Bagwell (cbagwell@sprynet.com) - * - * Rearranged some functions so that they are declared before they are - * used, clearing up some compiler warnings. Because these functions - * passed floats, it helped some dumb compilers pass stuff on the - * stack correctly. - * - */ - -#include "sox_i.h" -#include -#include -#include -#include - -/* FIXME: eliminate these 2 functions */ - -static void put32_be(unsigned char **p, int32_t val) -{ - *(*p)++ = (val >> 24) & 0xff; - *(*p)++ = (val >> 16) & 0xff; - *(*p)++ = (val >> 8) & 0xff; - *(*p)++ = val & 0xff; -} - -static void put16_be(unsigned char **p, int val) -{ - *(*p)++ = (val >> 8) & 0xff; - *(*p)++ = val & 0xff; -} - -/* Dictionary entry for Huffman (de)compression */ -typedef struct { - long frequ; - short dict_leftson; - short dict_rightson; -} dictent; - -typedef struct { - /* Static data from the header */ - dictent *dictionary; - int32_t checksum; - int deltacompression; - /* Engine state */ - long huffcount; - long cksum; - int dictentry; - int nrbits; - uint32_t current; - short sample; - /* Dictionary */ - dictent *de; - int32_t new_checksum; - int nbits; - int32_t curword; - - /* Private data used by writer */ - unsigned char *data; /* Buffer allocated with lsx_malloc */ - size_t size; /* Size of allocated buffer */ - size_t pos; /* Where next byte goes */ -} priv_t; - -static int dictvalid(int n, int size, int left, int right) -{ - if (n > 0 && left < 0) - return 1; - - return (unsigned)left < size && (unsigned)right < size; -} - -static int startread(sox_format_t * ft) -{ - priv_t *p = (priv_t *) ft->priv; - int i; - char buf[5]; - uint32_t datasize, rsrcsize; - uint32_t huffcount, checksum, compresstype, divisor; - unsigned short dictsize; - int rc; - - - /* Skip first 65 bytes of header */ - rc = lsx_skipbytes(ft, (size_t) 65); - if (rc) - return rc; - - /* Check the file type (bytes 65-68) */ - if (lsx_reads(ft, buf, (size_t)4) == SOX_EOF || strncmp(buf, "FSSD", (size_t)4) != 0) - { - lsx_fail_errno(ft,SOX_EHDR,"Mac header type is not FSSD"); - return (SOX_EOF); - } - - /* Skip to byte 83 */ - rc = lsx_skipbytes(ft, (size_t) 83-69); - if (rc) - return rc; - - /* Get essential numbers from the header */ - lsx_readdw(ft, &datasize); /* bytes 83-86 */ - lsx_readdw(ft, &rsrcsize); /* bytes 87-90 */ - - /* Skip the rest of the header (total 128 bytes) */ - rc = lsx_skipbytes(ft, (size_t) 128-91); - if (rc != 0) - return rc; - - /* The data fork must contain a "HCOM" header */ - if (lsx_reads(ft, buf, (size_t)4) == SOX_EOF || strncmp(buf, "HCOM", (size_t)4) != 0) - { - lsx_fail_errno(ft,SOX_EHDR,"Mac data fork is not HCOM"); - return (SOX_EOF); - } - - /* Then follow various parameters */ - lsx_readdw(ft, &huffcount); - lsx_readdw(ft, &checksum); - lsx_readdw(ft, &compresstype); - if (compresstype > 1) - { - lsx_fail_errno(ft,SOX_EHDR,"Bad compression type in HCOM header"); - return (SOX_EOF); - } - lsx_readdw(ft, &divisor); - if (divisor == 0 || divisor > 4) - { - lsx_fail_errno(ft,SOX_EHDR,"Bad sampling rate divisor in HCOM header"); - return (SOX_EOF); - } - lsx_readw(ft, &dictsize); - - /* Translate to sox parameters */ - ft->encoding.encoding = SOX_ENCODING_HCOM; - ft->encoding.bits_per_sample = 8; - ft->signal.rate = 22050 / divisor; - ft->signal.channels = 1; - ft->signal.length = huffcount; - - /* Allocate memory for the dictionary */ - p->dictionary = lsx_malloc(511 * sizeof(dictent)); - - /* Read dictionary */ - for(i = 0; i < dictsize; i++) { - lsx_readsw(ft, &(p->dictionary[i].dict_leftson)); - lsx_readsw(ft, &(p->dictionary[i].dict_rightson)); - lsx_debug("%d %d", - p->dictionary[i].dict_leftson, - p->dictionary[i].dict_rightson); - if (!dictvalid(i, dictsize, p->dictionary[i].dict_leftson, - p->dictionary[i].dict_rightson)) { - lsx_fail_errno(ft, SOX_EHDR, "Invalid dictionary"); - return SOX_EOF; - } - } - rc = lsx_skipbytes(ft, (size_t) 1); /* skip pad byte */ - if (rc) - return rc; - - /* Initialized the decompression engine */ - p->checksum = checksum; - p->deltacompression = compresstype; - if (!p->deltacompression) - lsx_debug("HCOM data using value compression"); - p->huffcount = huffcount; - p->cksum = 0; - p->dictentry = 0; - p->nrbits = -1; /* Special case to get first byte */ - - return (SOX_SUCCESS); -} - -static size_t read_samples(sox_format_t * ft, sox_sample_t *buf, size_t len) -{ - register priv_t *p = (priv_t *) ft->priv; - int done = 0; - unsigned char sample_rate; - - if (p->nrbits < 0) { - /* The first byte is special */ - if (p->huffcount == 0) - return 0; /* Don't know if this can happen... */ - if (lsx_readb(ft, &sample_rate) == SOX_EOF) - { - return (0); - } - p->sample = sample_rate; - *buf++ = SOX_UNSIGNED_8BIT_TO_SAMPLE(p->sample,); - p->huffcount--; - p->nrbits = 0; - done++; - len--; - if (len == 0) - return done; - } - - while (p->huffcount > 0) { - if(p->nrbits == 0) { - lsx_readdw(ft, &(p->current)); - if (lsx_eof(ft)) - { - lsx_fail_errno(ft,SOX_EOF,"unexpected EOF in HCOM data"); - return (0); - } - p->cksum += p->current; - p->nrbits = 32; - } - if(p->current & 0x80000000) { - p->dictentry = - p->dictionary[p->dictentry].dict_rightson; - } else { - p->dictentry = - p->dictionary[p->dictentry].dict_leftson; - } - p->current = p->current << 1; - p->nrbits--; - if(p->dictionary[p->dictentry].dict_leftson < 0) { - short datum; - datum = p->dictionary[p->dictentry].dict_rightson; - if (!p->deltacompression) - p->sample = 0; - p->sample = (p->sample + datum) & 0xff; - p->huffcount--; - *buf++ = SOX_UNSIGNED_8BIT_TO_SAMPLE(p->sample,); - p->dictentry = 0; - done++; - len--; - if (len == 0) - break; - } - } - - return done; -} - -static int stopread(sox_format_t * ft) -{ - register priv_t *p = (priv_t *) ft->priv; - - if (p->huffcount != 0) - { - lsx_fail_errno(ft,SOX_EFMT,"not all HCOM data read"); - return (SOX_EOF); - } - if(p->cksum != p->checksum) - { - lsx_fail_errno(ft,SOX_EFMT,"checksum error in HCOM data"); - return (SOX_EOF); - } - free(p->dictionary); - p->dictionary = NULL; - return (SOX_SUCCESS); -} - -#define BUFINCR (10*BUFSIZ) - -static int startwrite(sox_format_t * ft) -{ - priv_t * p = (priv_t *) ft->priv; - - p->size = BUFINCR; - p->pos = 0; - p->data = lsx_malloc(p->size); - return SOX_SUCCESS; -} - -static size_t write_samples(sox_format_t * ft, const sox_sample_t *buf, size_t len) -{ - priv_t *p = (priv_t *) ft->priv; - sox_sample_t datum; - size_t i; - - if (len == 0) - return 0; - - if (p->pos == INT32_MAX) - return SOX_EOF; - - if (p->pos + len > INT32_MAX) { - lsx_warn("maximum file size exceeded"); - len = INT32_MAX - p->pos; - } - - if (p->pos + len > p->size) { - p->size = ((p->pos + len) / BUFINCR + 1) * BUFINCR; - p->data = lsx_realloc(p->data, p->size); - } - - for (i = 0; i < len; i++) { - SOX_SAMPLE_LOCALS; - datum = *buf++; - p->data[p->pos++] = SOX_SAMPLE_TO_UNSIGNED_8BIT(datum, ft->clips); - } - - return len; -} - -static void makecodes(int e, int c, int s, int b, dictent newdict[511], long codes[256], long codesize[256]) -{ - assert(b); /* Prevent stack overflow */ - if (newdict[e].dict_leftson < 0) { - codes[newdict[e].dict_rightson] = c; - codesize[newdict[e].dict_rightson] = s; - } else { - makecodes(newdict[e].dict_leftson, c, s + 1, b << 1, newdict, codes, codesize); - makecodes(newdict[e].dict_rightson, c + b, s + 1, b << 1, newdict, codes, codesize); - } -} - -static void putcode(sox_format_t * ft, long codes[256], long codesize[256], unsigned c, unsigned char **df) -{ - priv_t *p = (priv_t *) ft->priv; - long code, size; - int i; - - code = codes[c]; - size = codesize[c]; - for(i = 0; i < size; i++) { - p->curword <<= 1; - if (code & 1) - p->curword += 1; - p->nbits++; - if (p->nbits == 32) { - put32_be(df, p->curword); - p->new_checksum += p->curword; - p->nbits = 0; - p->curword = 0; - } - code >>= 1; - } -} - -static void compress(sox_format_t * ft, unsigned char **df, int32_t *dl) -{ - priv_t *p = (priv_t *) ft->priv; - int samplerate; - unsigned char *datafork = *df; - unsigned char *ddf, *dfp; - short dictsize; - int frequtable[256]; - long codes[256], codesize[256]; - dictent newdict[511]; - int i, sample, j, k, d, l, frequcount; - int64_t csize; - - sample = *datafork; - memset(frequtable, 0, sizeof(frequtable)); - memset(codes, 0, sizeof(codes)); - memset(codesize, 0, sizeof(codesize)); - memset(newdict, 0, sizeof(newdict)); - - for (i = 1; i < *dl; i++) { - d = (datafork[i] - (sample & 0xff)) & 0xff; /* creates absolute entries LMS */ - sample = datafork[i]; - datafork[i] = d; - assert(d >= 0 && d <= 255); /* check our table is accessed correctly */ - frequtable[d]++; - } - p->de = newdict; - for (i = 0; i < 256; i++) - if (frequtable[i] != 0) { - p->de->frequ = -frequtable[i]; - p->de->dict_leftson = -1; - p->de->dict_rightson = i; - p->de++; - } - frequcount = p->de - newdict; - for (i = 0; i < frequcount; i++) { - for (j = i + 1; j < frequcount; j++) { - if (newdict[i].frequ > newdict[j].frequ) { - k = newdict[i].frequ; - newdict[i].frequ = newdict[j].frequ; - newdict[j].frequ = k; - k = newdict[i].dict_leftson; - newdict[i].dict_leftson = newdict[j].dict_leftson; - newdict[j].dict_leftson = k; - k = newdict[i].dict_rightson; - newdict[i].dict_rightson = newdict[j].dict_rightson; - newdict[j].dict_rightson = k; - } - } - } - while (frequcount > 1) { - j = frequcount - 1; - p->de->frequ = newdict[j - 1].frequ; - p->de->dict_leftson = newdict[j - 1].dict_leftson; - p->de->dict_rightson = newdict[j - 1].dict_rightson; - l = newdict[j - 1].frequ + newdict[j].frequ; - for (i = j - 2; i >= 0 && l < newdict[i].frequ; i--) - newdict[i + 1] = newdict[i]; - i = i + 1; - newdict[i].frequ = l; - newdict[i].dict_leftson = j; - newdict[i].dict_rightson = p->de - newdict; - p->de++; - frequcount--; - } - dictsize = p->de - newdict; - makecodes(0, 0, 0, 1, newdict, codes, codesize); - csize = 0; - for (i = 0; i < 256; i++) - csize += frequtable[i] * codesize[i]; - l = (((csize + 31) >> 5) << 2) + 24 + dictsize * 4; - lsx_debug(" Original size: %6d bytes", *dl); - lsx_debug("Compressed size: %6d bytes", l); - datafork = lsx_malloc((size_t)l); - ddf = datafork + 22; - for(i = 0; i < dictsize; i++) { - put16_be(&ddf, newdict[i].dict_leftson); - put16_be(&ddf, newdict[i].dict_rightson); - } - *ddf++ = 0; - *ddf++ = *(*df)++; - p->new_checksum = 0; - p->nbits = 0; - p->curword = 0; - for (i = 1; i < *dl; i++) - putcode(ft, codes, codesize, *(*df)++, &ddf); - if (p->nbits != 0) { - codes[0] = 0; - codesize[0] = 32 - p->nbits; - putcode(ft, codes, codesize, 0, &ddf); - } - memcpy(datafork, "HCOM", (size_t)4); - dfp = datafork + 4; - put32_be(&dfp, *dl); - put32_be(&dfp, p->new_checksum); - put32_be(&dfp, 1); - samplerate = 22050 / ft->signal.rate + .5; - put32_be(&dfp, samplerate); - put16_be(&dfp, dictsize); - *df = datafork; /* reassign passed pointer to new datafork */ - *dl = l; /* and its compressed length */ -} - -/* End of hcom utility routines */ - -static int stopwrite(sox_format_t * ft) -{ - priv_t *p = (priv_t *) ft->priv; - unsigned char *compressed_data = p->data; - int32_t compressed_len = p->pos; - int rc = SOX_SUCCESS; - - /* Compress it all at once */ - if (compressed_len) { - compress(ft, &compressed_data, &compressed_len); - free(p->data); - } - - /* Write the header */ - lsx_writebuf(ft, "\000\001A", (size_t) 3); /* Dummy file name "A" */ - lsx_padbytes(ft, (size_t) 65-3); - lsx_writes(ft, "FSSD"); - lsx_padbytes(ft, (size_t) 83-69); - lsx_writedw(ft, (unsigned) compressed_len); /* compressed_data size */ - lsx_writedw(ft, 0); /* rsrc size */ - lsx_padbytes(ft, (size_t) 128 - 91); - if (lsx_error(ft)) { - lsx_fail_errno(ft, errno, "write error in HCOM header"); - rc = SOX_EOF; - } else if (lsx_writebuf(ft, compressed_data, compressed_len) != compressed_len) { - /* Write the compressed_data fork */ - lsx_fail_errno(ft, errno, "can't write compressed HCOM data"); - rc = SOX_EOF; - } - free(compressed_data); - - if (rc == SOX_SUCCESS) - /* Pad the compressed_data fork to a multiple of 128 bytes */ - lsx_padbytes(ft, 128u - (compressed_len % 128)); - - return rc; -} - -LSX_FORMAT_HANDLER(hcom) -{ - static char const * const names[] = {"hcom", NULL}; - static sox_rate_t const write_rates[] = {22050,22050/2,22050/3,22050/4.,0}; - static unsigned const write_encodings[] = { - SOX_ENCODING_HCOM, 8, 0, 0}; - static sox_format_handler_t handler = {SOX_LIB_VERSION_CODE, - "Mac FSSD files with Huffman compression", - names, SOX_FILE_BIG_END|SOX_FILE_MONO, - startread, read_samples, stopread, - startwrite, write_samples, stopwrite, - NULL, write_encodings, write_rates, sizeof(priv_t) - }; - return &handler; -}