ref: 2fecbdf084f74394183d198e6283c94e731ed5a5
parent: eaab4b71217bec6addbbb04489d8e0d1c1372945
author: Jean-Marc Valin <[email protected]>
date: Thu Jan 31 18:43:10 EST 2008
Fixed the default int32 type which was wrong on amd64 (and added testcase). Also, added an Ogg encoder (doesn't work quite yet).
--- a/libcelt/Makefile.am
+++ b/libcelt/Makefile.am
@@ -15,9 +15,9 @@
# Sources for compilation in the library
libcelt_la_SOURCES = bands.c bitrdec.c bitree.c bitrenc.c celt.c cwrs.c \
- ecintrin.h entcode.c entdec.c entenc.c fftwrap.c laplace.c mdct.c \
- modes.c pitch.c psy.c quant_bands.c quant_pitch.c rangedec.c \
- rangeenc.c rate.c smallft.c vq.c
+ ecintrin.h entcode.c entdec.c entenc.c fftwrap.c header.c laplace.c mdct.c modes.c \
+ pitch.c psy.c quant_bands.c quant_pitch.c rangedec.c rangeenc.c rate.c \
+ smallft.c vq.c
#noinst_HEADERS =
--- a/libcelt/celt_types.h
+++ b/libcelt/celt_types.h
@@ -158,8 +158,8 @@
/* Give up, take a reasonable guess */
typedef short celt_int16_t;
typedef unsigned short celt_uint16_t;
- typedef long celt_int32_t;
- typedef unsigned long celt_uint32_t;
+ typedef int celt_int32_t;
+ typedef unsigned int celt_uint32_t;
typedef long long celt_int64_t;
typedef unsigned long long celt_uint64_t;
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,9 +1,12 @@
INCLUDES = -I$(top_srcdir)/libcelt
METASOURCES = AUTO
-TESTS = ectest cwrs32-test cwrs64-test
+TESTS = type-test ectest cwrs32-test cwrs64-test
-bin_PROGRAMS = ectest cwrs32-test cwrs64-test
+bin_PROGRAMS = type-test ectest cwrs32-test cwrs64-test
+
+ectest_SOURCES = type-test.c
+ectest_LDADD = $(top_builddir)/libcelt/libcelt.la
ectest_SOURCES = ectest.c
ectest_LDADD = $(top_builddir)/libcelt/libcelt.la
--- /dev/null
+++ b/tests/type-test.c
@@ -1,0 +1,24 @@
+#include "celt_types.h"
+#include <stdio.h>
+
+int main()
+{+ celt_int16_t i = 1;
+ i <<= 14;
+ if (i>>14 != 1)
+ {+ fprintf(stderr, "celt_int16_t isn't 16 bits\n");
+ return 1;
+ }
+ if (sizeof(celt_int16_t)*2 != sizeof(celt_int32_t))
+ {+ fprintf(stderr, "16*2 != 32\n");
+ return 1;
+ }
+ if (sizeof(celt_int32_t)*2 != sizeof(celt_int64_t))
+ {+ fprintf(stderr, "32*2 != 64\n");
+ return 1;
+ }
+ return 0;
+}
--- /dev/null
+++ b/tools/celtenc.c
@@ -1,0 +1,720 @@
+/* Copyright (C) 2002-2008 Jean-Marc Valin
+ File: celtenc.c
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ - Neither the name of the Xiph.org Foundation nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+#if !defined WIN32 && !defined _WIN32
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#endif
+
+#ifndef HAVE_GETOPT_LONG
+#include "getopt_win.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "celt.h"
+#include "celt_header.h"
+#include <ogg/ogg.h>
+#include "wav_io.h"
+
+#if defined WIN32 || defined _WIN32
+/* We need the following two to set stdout to binary */
+#include <io.h>
+#include <fcntl.h>
+#endif
+
+#include "skeleton.h"
+
+
+void comment_init(char **comments, int* length, char *vendor_string);
+void comment_add(char **comments, int* length, char *tag, char *val);
+
+
+/*Write an Ogg page to a file pointer*/
+int oe_write_page(ogg_page *page, FILE *fp)
+{+ int written;
+ written = fwrite(page->header,1,page->header_len, fp);
+ written += fwrite(page->body,1,page->body_len, fp);
+
+ return written;
+}
+
+#define MAX_FRAME_SIZE 2000
+#define MAX_FRAME_BYTES 2000
+
+/* Convert input audio bits, endians and channels */
+static int read_samples(FILE *fin,int frame_size, int bits, int channels, int lsb, short * input, char *buff, celt_int32_t *size)
+{ + unsigned char in[MAX_FRAME_BYTES*2];
+ int i;
+ short *s;
+ int nb_read;
+
+ if (size && *size<=0)
+ {+ return 0;
+ }
+ /*Read input audio*/
+ if (size)
+ *size -= bits/8*channels*frame_size;
+ if (buff)
+ {+ for (i=0;i<12;i++)
+ in[i]=buff[i];
+ nb_read = fread(in+12,1,bits/8*channels*frame_size-12, fin) + 12;
+ if (size)
+ *size += 12;
+ } else {+ nb_read = fread(in,1,bits/8*channels* frame_size, fin);
+ }
+ nb_read /= bits/8*channels;
+
+ /*fprintf (stderr, "%d\n", nb_read);*/
+ if (nb_read==0)
+ return 0;
+
+ s=(short*)in;
+ if(bits==8)
+ {+ /* Convert 8->16 bits */
+ for(i=frame_size*channels-1;i>=0;i--)
+ {+ s[i]=(in[i]<<8)^0x8000;
+ }
+ } else
+ {+ /* convert to our endian format */
+ for(i=0;i<frame_size*channels;i++)
+ {+ if(lsb)
+ s[i]=le_short(s[i]);
+ else
+ s[i]=be_short(s[i]);
+ }
+ }
+
+ /* FIXME: This is probably redundent now */
+ /* copy to float input buffer */
+ for (i=0;i<frame_size*channels;i++)
+ {+ input[i]=(short)s[i];
+ }
+
+ for (i=nb_read*channels;i<frame_size*channels;i++)
+ {+ input[i]=0;
+ }
+
+
+ return nb_read;
+}
+
+void add_fishead_packet (ogg_stream_state *os) {+
+ fishead_packet fp;
+
+ memset(&fp, 0, sizeof(fp));
+ fp.ptime_n = 0;
+ fp.ptime_d = 1000;
+ fp.btime_n = 0;
+ fp.btime_d = 1000;
+
+ add_fishead_to_stream(os, &fp);
+}
+
+/*
+ * Adds the fishead packets in the skeleton output stream along with the e_o_s packet
+ */
+void add_fisbone_packet (ogg_stream_state *os, celt_int32_t serialno, CELTHeader *header) {+
+ fisbone_packet fp;
+
+ memset(&fp, 0, sizeof(fp));
+ fp.serial_no = serialno;
+ fp.nr_header_packet = 2 + header->extra_headers;
+ fp.granule_rate_n = header->sample_rate;
+ fp.granule_rate_d = 1;
+ fp.start_granule = 0;
+ fp.preroll = 3;
+ fp.granule_shift = 0;
+
+ add_message_header_field(&fp, "Content-Type", "audio/x-celt");
+
+ add_fisbone_to_stream(os, &fp);
+}
+
+void version()
+{+ printf ("celtenc (CELT encoder)\n");+ printf ("Copyright (C) 2008 Jean-Marc Valin\n");+}
+
+void version_short()
+{+ printf ("celtenc (CELT encoder)\n");+ printf ("Copyright (C) 2008 Jean-Marc Valin\n");+}
+
+void usage()
+{+ printf ("Usage: celtenc [options] input_file output_file\n");+ printf ("\n");+ printf ("Encodes input_file using Speex. It can read the WAV or raw files.\n");+ printf ("\n");+ printf ("input_file can be:\n");+ printf (" filename.wav wav file\n");+ printf (" filename.* Raw PCM file (any extension other than .wav)\n");+ printf (" - stdin\n");+ printf ("\n"); + printf ("output_file can be:\n");+ printf (" filename.oga compressed file\n");+ printf (" - stdout\n");+ printf ("\n"); + printf ("Options:\n");+ printf (" --bitrate n Encoding bit-rate (use bit-rate n or lower)\n"); + printf (" --skeleton Outputs ogg skeleton metadata (may cause incompatibilities)\n");+ printf (" --comment Add the given string as an extra comment. This may be\n");+ printf (" used multiple times\n");+ printf (" --author Author of this track\n");+ printf (" --title Title for this track\n");+ printf (" -h, --help This help\n"); + printf (" -v, --version Version information\n"); + printf (" -V Verbose mode (show bit-rate)\n"); + printf ("Raw input options:\n");+ printf (" --rate n Sampling rate for raw input\n"); + printf (" --stereo Consider raw input as stereo\n"); + printf (" --le Raw input is little-endian\n"); + printf (" --be Raw input is big-endian\n"); + printf (" --8bit Raw input is 8-bit unsigned\n"); + printf (" --16bit Raw input is 16-bit signed\n"); + printf ("Default raw PCM input is 16-bit, little-endian, mono\n"); + printf ("\n");+ printf ("More information is available from the Speex site: http://www.speex.org\n");+ printf ("\n");+ printf ("Please report bugs to the mailing list `[email protected]'.\n");+}
+
+
+int main(int argc, char **argv)
+{+ int nb_samples, total_samples=0, nb_encoded;
+ int c;
+ int option_index = 0;
+ char *inFile, *outFile;
+ FILE *fin, *fout;
+ short input[MAX_FRAME_SIZE];
+ celt_int32_t frame_size;
+ int quiet=0;
+ int nbBytes;
+ const CELTMode *mode=celt_mono;
+ int modeID = -1;
+ void *st;
+ char bits[MAX_FRAME_BYTES];
+ int with_skeleton = 0;
+ struct option long_options[] =
+ {+ {"bitrate", required_argument, NULL, 0},+ {"skeleton",no_argument,NULL, 0},+ {"help", no_argument, NULL, 0},+ {"quiet", no_argument, NULL, 0},+ {"le", no_argument, NULL, 0},+ {"be", no_argument, NULL, 0},+ {"8bit", no_argument, NULL, 0},+ {"16bit", no_argument, NULL, 0},+ {"stereo", no_argument, NULL, 0},+ {"rate", required_argument, NULL, 0},+ {"version", no_argument, NULL, 0},+ {"version-short", no_argument, NULL, 0},+ {"comment", required_argument, NULL, 0},+ {"author", required_argument, NULL, 0},+ {"title", required_argument, NULL, 0},+ {0, 0, 0, 0}+ };
+ int print_bitrate=0;
+ celt_int32_t rate=0;
+ celt_int32_t size;
+ int chan=1;
+ int fmt=16;
+ int lsb=1;
+ ogg_stream_state os;
+ ogg_stream_state so; /* ogg stream for skeleton bitstream */
+ ogg_page og;
+ ogg_packet op;
+ int bytes_written=0, ret, result;
+ int id=-1;
+ CELTHeader header;
+ celt_int32_t complexity=3;
+ char vendor_string[64];
+ char *comments;
+ int comments_length;
+ int close_in=0, close_out=0;
+ int eos=0;
+ celt_int32_t bitrate=0;
+ double cumul_bits=0, enc_frames=0;
+ char first_bytes[12];
+ int wave_input=0;
+ celt_int32_t tmp;
+ celt_int32_t lookahead = 0;
+ int bytes_per_packet=48;
+
+ snprintf(vendor_string, sizeof(vendor_string), "Encoded with CELT\n");
+
+ comment_init(&comments, &comments_length, vendor_string);
+
+ /*Process command-line options*/
+ while(1)
+ {+ c = getopt_long (argc, argv, "hvV",
+ long_options, &option_index);
+ if (c==-1)
+ break;
+
+ switch(c)
+ {+ case 0:
+ if (strcmp(long_options[option_index].name,"bitrate")==0)
+ {+ bitrate = atoi (optarg);
+ } else if (strcmp(long_options[option_index].name,"skeleton")==0)
+ {+ with_skeleton=1;
+ } else if (strcmp(long_options[option_index].name,"help")==0)
+ {+ usage();
+ exit(0);
+ } else if (strcmp(long_options[option_index].name,"quiet")==0)
+ {+ quiet = 1;
+ } else if (strcmp(long_options[option_index].name,"version")==0)
+ {+ version();
+ exit(0);
+ } else if (strcmp(long_options[option_index].name,"version-short")==0)
+ {+ version_short();
+ exit(0);
+ } else if (strcmp(long_options[option_index].name,"le")==0)
+ {+ lsb=1;
+ } else if (strcmp(long_options[option_index].name,"be")==0)
+ {+ lsb=0;
+ } else if (strcmp(long_options[option_index].name,"8bit")==0)
+ {+ fmt=8;
+ } else if (strcmp(long_options[option_index].name,"16bit")==0)
+ {+ fmt=16;
+ } else if (strcmp(long_options[option_index].name,"stereo")==0)
+ {+ chan=2;
+ mode = celt_stereo;
+ } else if (strcmp(long_options[option_index].name,"rate")==0)
+ {+ rate=atoi (optarg);
+ } else if (strcmp(long_options[option_index].name,"comment")==0)
+ {+ if (!strchr(optarg, '='))
+ {+ fprintf (stderr, "Invalid comment: %s\n", optarg);
+ fprintf (stderr, "Comments must be of the form name=value\n");
+ exit(1);
+ }
+ comment_add(&comments, &comments_length, NULL, optarg);
+ } else if (strcmp(long_options[option_index].name,"author")==0)
+ {+ comment_add(&comments, &comments_length, "author=", optarg);
+ } else if (strcmp(long_options[option_index].name,"title")==0)
+ {+ comment_add(&comments, &comments_length, "title=", optarg);
+ }
+
+ break;
+ case 'h':
+ usage();
+ exit(0);
+ break;
+ case 'v':
+ version();
+ exit(0);
+ break;
+ case 'V':
+ print_bitrate=1;
+ break;
+ case '?':
+ usage();
+ exit(1);
+ break;
+ }
+ }
+ if (argc-optind!=2)
+ {+ usage();
+ exit(1);
+ }
+ inFile=argv[optind];
+ outFile=argv[optind+1];
+
+ /*Initialize Ogg stream struct*/
+ srand(time(NULL));
+ if (ogg_stream_init(&os, rand())==-1)
+ {+ fprintf(stderr,"Error: stream init failed\n");
+ exit(1);
+ }
+ if (with_skeleton && ogg_stream_init(&so, rand())==-1)
+ {+ fprintf(stderr,"Error: stream init failed\n");
+ exit(1);
+ }
+
+ if (strcmp(inFile, "-")==0)
+ {+#if defined WIN32 || defined _WIN32
+ _setmode(_fileno(stdin), _O_BINARY);
+#elif defined OS2
+ _fsetmode(stdin,"b");
+#endif
+ fin=stdin;
+ }
+ else
+ {+ fin = fopen(inFile, "rb");
+ if (!fin)
+ {+ perror(inFile);
+ exit(1);
+ }
+ close_in=1;
+ }
+
+ {+ fread(first_bytes, 1, 12, fin);
+ if (strncmp(first_bytes,"RIFF",4)==0 && strncmp(first_bytes,"RIFF",4)==0)
+ {+ if (read_wav_header(fin, &rate, &chan, &fmt, &size)==-1)
+ exit(1);
+ wave_input=1;
+ lsb=1; /* CHECK: exists big-endian .wav ?? */
+ }
+ }
+
+ celt_mode_info(mode, CELT_GET_FRAME_SIZE, &frame_size);
+ celt_init_header(&header, rate, 1, mode);
+ header.nb_channels = chan;
+
+ {+ char *st_string="mono";
+ if (chan==2)
+ st_string="stereo";
+ if (!quiet)
+ fprintf (stderr, "Encoding %d Hz audio using %s\n",
+ header.sample_rate, st_string);
+ }
+ /*fprintf (stderr, "Encoding %d Hz audio at %d bps using %s mode\n",
+ header.rate, mode->bitrate, mode->modeName);*/
+
+ /*Initialize Speex encoder*/
+ st = celt_encoder_new(mode);
+
+ if (strcmp(outFile,"-")==0)
+ {+#if defined WIN32 || defined _WIN32
+ _setmode(_fileno(stdout), _O_BINARY);
+#endif
+ fout=stdout;
+ }
+ else
+ {+ fout = fopen(outFile, "wb");
+ if (!fout)
+ {+ perror(outFile);
+ exit(1);
+ }
+ close_out=1;
+ }
+
+ if (with_skeleton) {+ fprintf (stderr, "Warning: Enabling skeleton output may cause some decoders to fail.\n");
+ }
+
+ /* first packet should be the skeleton header. */
+ if (with_skeleton) {+ add_fishead_packet(&so);
+ if ((ret = flush_ogg_stream_to_file(&so, fout))) {+ fprintf (stderr,"Error: failed skeleton (fishead) header to output stream\n");
+ exit(1);
+ } else
+ bytes_written += ret;
+ }
+
+ /*Write header*/
+ {+ char header_data[100];
+ int packet_size = celt_header_to_packet(&header, header_data, 100);
+ op.packet = header_data;
+ op.bytes = packet_size;
+ fprintf(stderr, "header size is %d\n", op.bytes);
+ op.b_o_s = 1;
+ op.e_o_s = 0;
+ op.granulepos = 0;
+ op.packetno = 0;
+ ogg_stream_packetin(&os, &op);
+
+ while((result = ogg_stream_flush(&os, &og)))
+ {+ if(!result) break;
+ ret = oe_write_page(&og, fout);
+ if(ret != og.header_len + og.body_len)
+ {+ fprintf (stderr,"Error: failed writing header to output stream\n");
+ exit(1);
+ }
+ else
+ bytes_written += ret;
+ }
+
+ op.packet = (unsigned char *)comments;
+ op.bytes = comments_length;
+ op.b_o_s = 0;
+ op.e_o_s = 0;
+ op.granulepos = 0;
+ op.packetno = 1;
+ ogg_stream_packetin(&os, &op);
+ }
+
+ /* fisbone packet should be write after all bos pages */
+ if (with_skeleton) {+ add_fisbone_packet(&so, os.serialno, &header);
+ if ((ret = flush_ogg_stream_to_file(&so, fout))) {+ fprintf (stderr,"Error: failed writing skeleton (fisbone )header to output stream\n");
+ exit(1);
+ } else
+ bytes_written += ret;
+ }
+
+ /* writing the rest of the speex header packets */
+ while((result = ogg_stream_flush(&os, &og)))
+ {+ if(!result) break;
+ ret = oe_write_page(&og, fout);
+ if(ret != og.header_len + og.body_len)
+ {+ fprintf (stderr,"Error: failed writing header to output stream\n");
+ exit(1);
+ }
+ else
+ bytes_written += ret;
+ }
+
+ free(comments);
+
+ /* write the skeleton eos packet */
+ if (with_skeleton) {+ add_eos_packet_to_stream(&so);
+ if ((ret = flush_ogg_stream_to_file(&so, fout))) {+ fprintf (stderr,"Error: failed writing skeleton header to output stream\n");
+ exit(1);
+ } else
+ bytes_written += ret;
+ }
+
+
+ if (!wave_input)
+ {+ nb_samples = read_samples(fin,frame_size,fmt,chan,lsb,input, first_bytes, NULL);
+ } else {+ nb_samples = read_samples(fin,frame_size,fmt,chan,lsb,input, NULL, &size);
+ }
+ if (nb_samples==0)
+ eos=1;
+ total_samples += nb_samples;
+ nb_encoded = -lookahead;
+ /*Main encoding loop (one frame per iteration)*/
+ while (!eos || total_samples>nb_encoded)
+ {+ id++;
+ /*Encode current frame*/
+
+ nbBytes = celt_encode(st, input, bits, bytes_per_packet);
+
+ nb_encoded += frame_size;
+
+ if (wave_input)
+ {+ nb_samples = read_samples(fin,frame_size,fmt,chan,lsb,input, NULL, &size);
+ } else {+ nb_samples = read_samples(fin,frame_size,fmt,chan,lsb,input, NULL, NULL);
+ }
+ if (nb_samples==0)
+ {+ eos=1;
+ }
+ if (eos && total_samples<=nb_encoded)
+ op.e_o_s = 1;
+ else
+ op.e_o_s = 0;
+ total_samples += nb_samples;
+
+ op.packet = (unsigned char *)bits;
+ op.bytes = nbBytes;
+ op.b_o_s = 0;
+ /*Is this redundent?*/
+ if (eos && total_samples<=nb_encoded)
+ op.e_o_s = 1;
+ else
+ op.e_o_s = 0;
+ op.granulepos = (id+1)*frame_size-lookahead;
+ if (op.granulepos>total_samples)
+ op.granulepos = total_samples;
+ /*printf ("granulepos: %d %d %d %d %d %d\n", (int)op.granulepos, id, nframes, lookahead, 5, 6);*/+ op.packetno = 2+id;
+ ogg_stream_packetin(&os, &op);
+
+ /*Write all new pages (most likely 0 or 1)*/
+ while (ogg_stream_pageout(&os,&og))
+ {+ ret = oe_write_page(&og, fout);
+ if(ret != og.header_len + og.body_len)
+ {+ fprintf (stderr,"Error: failed writing header to output stream\n");
+ exit(1);
+ }
+ else
+ bytes_written += ret;
+ }
+ }
+ /*Flush all pages left to be written*/
+ while (ogg_stream_flush(&os, &og))
+ {+ ret = oe_write_page(&og, fout);
+ if(ret != og.header_len + og.body_len)
+ {+ fprintf (stderr,"Error: failed writing header to output stream\n");
+ exit(1);
+ }
+ else
+ bytes_written += ret;
+ }
+
+ celt_encoder_destroy(st);
+ ogg_stream_clear(&os);
+
+ if (close_in)
+ fclose(fin);
+ if (close_out)
+ fclose(fout);
+ return 0;
+}
+
+/*
+ Comments will be stored in the Vorbis style.
+ It is describled in the "Structure" section of
+ http://www.xiph.org/ogg/vorbis/doc/v-comment.html
+
+The comment header is decoded as follows:
+ 1) [vendor_length] = read an unsigned integer of 32 bits
+ 2) [vendor_string] = read a UTF-8 vector as [vendor_length] octets
+ 3) [user_comment_list_length] = read an unsigned integer of 32 bits
+ 4) iterate [user_comment_list_length] times {+ 5) [length] = read an unsigned integer of 32 bits
+ 6) this iteration's user comment = read a UTF-8 vector as [length] octets
+ }
+ 7) [framing_bit] = read a single bit as boolean
+ 8) if ( [framing_bit] unset or end of packet ) then ERROR
+ 9) done.
+
+ If you have troubles, please write to [email protected].
+ */
+
+#define readint(buf, base) (((buf[base+3]<<24)&0xff000000)| \
+ ((buf[base+2]<<16)&0xff0000)| \
+ ((buf[base+1]<<8)&0xff00)| \
+ (buf[base]&0xff))
+#define writeint(buf, base, val) do{ buf[base+3]=((val)>>24)&0xff; \+ buf[base+2]=((val)>>16)&0xff; \
+ buf[base+1]=((val)>>8)&0xff; \
+ buf[base]=(val)&0xff; \
+ }while(0)
+
+void comment_init(char **comments, int* length, char *vendor_string)
+{+ int vendor_length=strlen(vendor_string);
+ int user_comment_list_length=0;
+ int len=4+vendor_length+4;
+ char *p=(char*)malloc(len);
+ if(p==NULL){+ fprintf (stderr, "malloc failed in comment_init()\n");
+ exit(1);
+ }
+ writeint(p, 0, vendor_length);
+ memcpy(p+4, vendor_string, vendor_length);
+ writeint(p, 4+vendor_length, user_comment_list_length);
+ *length=len;
+ *comments=p;
+}
+void comment_add(char **comments, int* length, char *tag, char *val)
+{+ char* p=*comments;
+ int vendor_length=readint(p, 0);
+ int user_comment_list_length=readint(p, 4+vendor_length);
+ int tag_len=(tag?strlen(tag):0);
+ int val_len=strlen(val);
+ int len=(*length)+4+tag_len+val_len;
+
+ p=(char*)realloc(p, len);
+ if(p==NULL){+ fprintf (stderr, "realloc failed in comment_add()\n");
+ exit(1);
+ }
+
+ writeint(p, *length, tag_len+val_len); /* length of comment */
+ if(tag) memcpy(p+*length+4, tag, tag_len); /* comment */
+ memcpy(p+*length+4+tag_len, val, val_len); /* comment */
+ writeint(p, 4+vendor_length, user_comment_list_length+1);
+
+ *comments=p;
+ *length=len;
+}
+#undef readint
+#undef writeint
--- /dev/null
+++ b/tools/skeleton.c
@@ -1,0 +1,188 @@
+/*
+ * skeleton.c
+ * author: Tahseen Mohammad
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <ogg/ogg.h>
+
+#include "skeleton.h"
+
+/* write an ogg_page to a file pointer */
+int write_ogg_page_to_file(ogg_page *og, FILE *out) {+ int written;
+
+ written = fwrite(og->header,1, og->header_len, out);
+ written += fwrite(og->body,1, og->body_len, out);
+
+ return written;
+}
+
+int add_message_header_field(fisbone_packet *fp,
+ char *header_key,
+ char *header_value) {+
+ /* size of both key and value + ': ' + CRLF */
+ int this_message_size = strlen(header_key) + strlen(header_value) + 4;
+ if (fp->message_header_fields == NULL) {+ fp->message_header_fields = _ogg_calloc(this_message_size, sizeof(char));
+ } else {+ int new_size = (fp->current_header_size + this_message_size) * sizeof(char);
+ fp->message_header_fields = _ogg_realloc(fp->message_header_fields, new_size);
+ }
+ snprintf(fp->message_header_fields + fp->current_header_size,
+ this_message_size+1,
+ "%s: %s\r\n",
+ header_key,
+ header_value);
+ fp->current_header_size += this_message_size;
+
+ return 0;
+}
+
+/* create a ogg_packet from a fishead_packet structure */
+ogg_packet ogg_from_fishead(fishead_packet *fp) {+
+ ogg_packet op;
+
+ memset(&op, 0, sizeof(op));
+ op.packet = _ogg_calloc(FISHEAD_SIZE, sizeof(unsigned char));
+ memset(op.packet, 0, FISHEAD_SIZE);
+
+ memcpy (op.packet, FISHEAD_IDENTIFIER, 8); /* identifier */
+ *((ogg_uint16_t*)(op.packet+8)) = SKELETON_VERSION_MAJOR; /* version major */
+ *((ogg_uint16_t*)(op.packet+10)) = SKELETON_VERSION_MINOR; /* version minor */
+ *((ogg_int64_t*)(op.packet+12)) = (ogg_int64_t)fp->ptime_n; /* presentationtime numerator */
+ *((ogg_int64_t*)(op.packet+20)) = (ogg_int64_t)fp->ptime_d; /* presentationtime denominator */
+ *((ogg_int64_t*)(op.packet+28)) = (ogg_int64_t)fp->btime_n; /* basetime numerator */
+ *((ogg_int64_t*)(op.packet+36)) = (ogg_int64_t)fp->btime_d; /* basetime denominator */
+ /* TODO: UTC time, set to zero for now */
+
+ op.b_o_s = 1; /* its the first packet of the stream */
+ op.e_o_s = 0; /* its not the last packet of the stream */
+ op.bytes = FISHEAD_SIZE; /* length of the packet in bytes */
+
+ return op;
+}
+
+/* create a ogg_packet from a fisbone_packet structure.
+ * call this method after the fisbone_packet is filled and all message header fields are added
+ * by calling add_message_header_field method.
+ */
+ogg_packet ogg_from_fisbone(fisbone_packet *fp) {+
+ ogg_packet op;
+ int packet_size = FISBONE_SIZE + fp->current_header_size;
+
+ memset (&op, 0, sizeof (op));
+ op.packet = _ogg_calloc (packet_size, sizeof(unsigned char));
+ memset (op.packet, 0, packet_size);
+ memcpy (op.packet, FISBONE_IDENTIFIER, 8); /* identifier */
+ *((ogg_uint32_t*)(op.packet+8)) = FISBONE_MESSAGE_HEADER_OFFSET; /* offset of the message header fields */
+ *((ogg_uint32_t*)(op.packet+12)) = fp->serial_no; /* serialno of the respective stream */
+ *((ogg_uint32_t*)(op.packet+16)) = fp->nr_header_packet; /* number of header packets */
+ *((ogg_int64_t*)(op.packet+20)) = fp->granule_rate_n; /* granulrate numerator */
+ *((ogg_int64_t*)(op.packet+28)) = fp->granule_rate_d; /* granulrate denominator */
+ *((ogg_int64_t*)(op.packet+36)) = fp->start_granule; /* start granule */
+ *((ogg_uint32_t*)(op.packet+44)) = fp->preroll; /* preroll, for theora its 0 */
+ *(op.packet+48) = fp->granule_shift; /* granule shift */
+ memcpy((op.packet+FISBONE_SIZE), fp->message_header_fields, fp->current_header_size);
+
+ op.b_o_s = 0;
+ op.e_o_s = 0;
+ op.bytes = packet_size; /* size of the packet in bytes */
+
+ return op;
+}
+
+/* fills up a fishead_packet from a fishead ogg_packet of a skeleton bistream */
+fishead_packet fishead_from_ogg(ogg_packet *op) {+
+ fishead_packet fp;
+
+ if (memcmp(op->packet, FISHEAD_IDENTIFIER, 8))
+ ; /* invalid packet what do we do? */
+
+ fp.version_major = *((ogg_uint16_t*)(op->packet+8)); /* version major */
+ fp.version_minor = *((ogg_uint16_t*)(op->packet+10)); /* version minor */
+ fp.ptime_n = *((ogg_int64_t*)(op->packet+12)); /* presentationtime numerator */
+ fp.ptime_d = *((ogg_int64_t*)(op->packet+20)); /* presentationtime denominator */
+ fp.btime_n = *((ogg_int64_t*)(op->packet+28)); /* basetime numerator */
+ fp.btime_d = *((ogg_int64_t*)(op->packet+36)); /* basetime denominator */
+ memcpy(fp.UTC, op->packet+44, 20);
+
+ return fp;
+}
+
+/* fills up a fisbone_packet from a fisbone ogg_packet of a skeleton bitstream */
+fisbone_packet fisbone_from_ogg(ogg_packet *op) {+
+ fisbone_packet fp;
+
+ if (memcmp(op->packet, FISBONE_IDENTIFIER, 8))
+ ; /* invalid value, what do we do? */
+ fp.serial_no = *((ogg_uint32_t*)(op->packet+12)); /* serialno of the stream represented by this fisbone packet */
+ fp.nr_header_packet = *((ogg_uint32_t*)(op->packet+16)); /* number of header packets */
+ fp.granule_rate_n = *((ogg_int64_t*)(op->packet+20)); /* granulrate numerator */
+ fp.granule_rate_d = *((ogg_int64_t*)(op->packet+28)); /* granulrate denominator */
+ fp.start_granule = *((ogg_int64_t*)(op->packet+36)); /* start granule */
+ fp.preroll = *((ogg_uint32_t*)(op->packet+44)); /* preroll, for theora its 0 */
+ fp.granule_shift = *(op->packet+48); /* granule shift */
+ fp.current_header_size = op->bytes - FISBONE_SIZE;
+ fp.message_header_fields = _ogg_calloc(fp.current_header_size+1, sizeof(char));
+ memcpy(fp.message_header_fields, op->packet+FISBONE_SIZE, fp.current_header_size);
+
+ return fp;
+}
+
+int add_fishead_to_stream(ogg_stream_state *os, fishead_packet *fp) {+
+ ogg_packet op;
+
+ op = ogg_from_fishead(fp);
+ ogg_stream_packetin(os, &op);
+ _ogg_free(op.packet);
+
+ return 0;
+}
+
+int add_fisbone_to_stream(ogg_stream_state *os, fisbone_packet *fp) {+
+ ogg_packet op;
+
+ op = ogg_from_fisbone(fp);
+ ogg_stream_packetin(os, &op);
+ _ogg_free(op.packet);
+
+ return 0;
+}
+
+int add_eos_packet_to_stream(ogg_stream_state *os) {+
+ ogg_packet op;
+
+ memset (&op, 0, sizeof(op));
+ op.e_o_s = 1;
+ ogg_stream_packetin(os, &op);
+
+ return 0;
+}
+
+int flush_ogg_stream_to_file(ogg_stream_state *os, FILE *out) {+
+ ogg_page og;
+ int result;
+
+ while((result = ogg_stream_flush(os, &og)))
+ {+ if(!result) break;
+ result = write_ogg_page_to_file(&og, out);
+ if(result != og.header_len + og.body_len)
+ return 1;
+ }
+
+ return 0;
+}
--- /dev/null
+++ b/tools/skeleton.h
@@ -1,0 +1,78 @@
+/*
+ * skeleton.h
+ * author: Tahseen Mohammad
+ */
+
+#ifndef _SKELETON_H
+#define _SKELETON_H
+
+#ifdef __cplusplus
+extern "C" {+#endif
+
+#ifdef WIN32
+#define snprintf _snprintf
+#endif
+
+#include <ogg/ogg.h>
+
+#define SKELETON_VERSION_MAJOR 3
+#define SKELETON_VERSION_MINOR 0
+#define FISHEAD_IDENTIFIER "fishead\0"
+#define FISBONE_IDENTIFIER "fisbone\0"
+#define FISHEAD_SIZE 64
+#define FISBONE_SIZE 52
+#define FISBONE_MESSAGE_HEADER_OFFSET 44
+
+/* fishead_packet holds a fishead header packet. */
+typedef struct {+ ogg_uint16_t version_major; /* skeleton version major */
+ ogg_uint16_t version_minor; /* skeleton version minor */
+ /* Start time of the presentation
+ * For a new stream presentationtime & basetime is same. */
+ ogg_int64_t ptime_n; /* presentation time numerator */
+ ogg_int64_t ptime_d; /* presentation time denominator */
+ ogg_int64_t btime_n; /* basetime numerator */
+ ogg_int64_t btime_d; /* basetime denominator */
+ /* will holds the time of origin of the stream, a 20 bit field. */
+ unsigned char UTC[20];
+} fishead_packet;
+
+/* fisbone_packet holds a fisbone header packet. */
+typedef struct {+ ogg_uint32_t serial_no; /* serial no of the corresponding stream */
+ ogg_uint32_t nr_header_packet; /* number of header packets */
+ /* granule rate is the temporal resolution of the logical bitstream */
+ ogg_int64_t granule_rate_n; /* granule rate numerator */
+ ogg_int64_t granule_rate_d; /* granule rate denominator */
+ ogg_int64_t start_granule; /* start granule value */
+ ogg_uint32_t preroll; /* preroll */
+ unsigned char granule_shift; /* 1 byte value holding the granule shift */
+ char *message_header_fields; /* holds all the message header fields */
+ /* current total size of the message header fields, for realloc purpose, initially zero */
+ ogg_uint32_t current_header_size;
+} fisbone_packet;
+
+extern int write_ogg_page_to_file(ogg_page *og, FILE *out);
+extern int add_message_header_field(fisbone_packet *fp, char *header_key, char *header_value);
+/* remember to deallocate the returned ogg_packet properly */
+extern ogg_packet ogg_from_fishead(fishead_packet *fp);
+extern ogg_packet ogg_from_fisbone(fisbone_packet *fp);
+extern fishead_packet fishead_from_ogg(ogg_packet *op);
+extern fisbone_packet fisbone_from_ogg(ogg_packet *op);
+extern int add_fishead_to_stream(ogg_stream_state *os, fishead_packet *fp);
+extern int add_fisbone_to_stream(ogg_stream_state *os, fisbone_packet *fp);
+extern int add_eos_packet_to_stream(ogg_stream_state *os);
+extern int flush_ogg_stream_to_file(ogg_stream_state *os, FILE *out);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SKELETON_H */
+
+
+
+
+
+
--- /dev/null
+++ b/tools/wav_io.c
@@ -1,0 +1,232 @@
+/* Copyright (C) 2002 Jean-Marc Valin
+ File: wav_io.c
+ Routines to handle wav (RIFF) headers
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ - Neither the name of the Xiph.org Foundation nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include "celt_types.h"
+#include "wav_io.h"
+
+
+int read_wav_header(FILE *file, int *rate, int *channels, int *format, celt_int32_t *size)
+{+ char ch[5];
+ celt_int32_t itmp;
+ celt_int16_t stmp;
+ celt_int32_t bpersec;
+ celt_int16_t balign;
+ int skip_bytes;
+ int i;
+
+ ch[4]=0;
+#if 0
+ fread(ch, 1, 4, file);
+ if (strcmp(ch, "RIFF")!=0)
+ {+ fseek(file, 0, SEEK_SET);
+ return 0;
+ }
+
+ fread(&itmp, 4, 1, file);
+ *size = le_int(itmp-36);
+
+ fread(ch, 1, 4, file);
+ if (strcmp(ch, "WAVE")!=0)
+ {+ fprintf (stderr, "RIFF file is not a WAVE file\n");
+ return -1;
+ }
+#endif
+ fread(ch, 1, 4, file);
+ while (strcmp(ch, "fmt ")!=0)
+ {+ fread(&itmp, 4, 1, file);
+ itmp = le_int(itmp);
+ /*fprintf (stderr, "skip=%d\n", itmp);*/
+ /*strange way of seeking, but it works even for pipes*/
+ for (i=0;i<itmp;i++)
+ fgetc(file);
+ /*fseek(file, itmp, SEEK_CUR);*/
+ fread(ch, 1, 4, file);
+ if (feof(file))
+ {+ fprintf (stderr, "Corrupted WAVE file: no \"fmt \"\n");
+ return -1;
+ }
+ }
+ /*if (strcmp(ch, "fmt ")!=0)
+ {+ fprintf (stderr, "Corrupted WAVE file: no \"fmt \"\n");
+ return -1;
+ }*/
+
+ fread(&itmp, 4, 1, file);
+ itmp = le_int(itmp);
+ skip_bytes=itmp-16;
+ /*fprintf (stderr, "skip=%d\n", skip_bytes);*/
+
+ fread(&stmp, 2, 1, file);
+ stmp = le_short(stmp);
+ if (stmp!=1)
+ {+ fprintf (stderr, "Only PCM encoding is supported\n");
+ return -1;
+ }
+
+ fread(&stmp, 2, 1, file);
+ stmp = le_short(stmp);
+ *channels = stmp;
+
+ if (stmp>2)
+ {+ fprintf (stderr, "Only mono and (intensity) stereo supported\n");
+ return -1;
+ }
+
+ fread(&itmp, 4, 1, file);
+ itmp = le_int(itmp);
+ *rate = itmp;
+ if (*rate != 8000 && *rate != 16000 && *rate != 11025 && *rate != 22050 && *rate != 32000 && *rate != 44100 && *rate != 48000)
+ {+ fprintf (stderr, "Only 8 kHz (narrowband) and 16 kHz (wideband) supported (plus 11.025 kHz and 22.05 kHz, but your mileage may vary)\n");
+ return -1;
+ }
+
+ fread(&itmp, 4, 1, file);
+ bpersec = le_int(itmp);
+
+ fread(&stmp, 2, 1, file);
+ balign = le_short(stmp);
+
+ fread(&stmp, 2, 1, file);
+ stmp = le_short(stmp);
+ if (stmp!=16 && stmp!=8)
+ {+ fprintf (stderr, "Only 8/16-bit linear supported\n");
+ return -1;
+ }
+ *format=stmp;
+
+ if (bpersec!=*rate**channels*stmp/8)
+ {+ fprintf (stderr, "Corrupted header: ByteRate mismatch\n");
+ return -1;
+ }
+
+ if (balign!=*channels*stmp/8)
+ {+ fprintf (stderr, "Corrupted header: BlockAlign mismatch\n");
+ return -1;
+ }
+
+
+ /*strange way of seeking, but it works even for pipes*/
+ if (skip_bytes>0)
+ for (i=0;i<skip_bytes;i++)
+ fgetc(file);
+
+ /*fseek(file, skip_bytes, SEEK_CUR);*/
+
+ fread(ch, 1, 4, file);
+ while (strcmp(ch, "data")!=0)
+ {+ fread(&itmp, 4, 1, file);
+ itmp = le_int(itmp);
+ /*strange way of seeking, but it works even for pipes*/
+ for (i=0;i<itmp;i++)
+ fgetc(file);
+ /*fseek(file, itmp, SEEK_CUR);*/
+ fread(ch, 1, 4, file);
+ if (feof(file))
+ {+ fprintf (stderr, "Corrupted WAVE file: no \"data\"\n");
+ return -1;
+ }
+ }
+
+ /*Ignore this for now*/
+ fread(&itmp, 4, 1, file);
+ itmp = le_int(itmp);
+
+ *size=itmp;
+
+ return 1;
+}
+
+
+
+void write_wav_header(FILE *file, int rate, int channels, int format, int size)
+{+ char ch[5];
+ celt_int32_t itmp;
+ celt_int16_t stmp;
+
+ ch[4]=0;
+
+ fprintf (file, "RIFF");
+
+ itmp = 0x7fffffff;
+ fwrite(&itmp, 4, 1, file);
+
+ fprintf (file, "WAVEfmt ");
+
+ itmp = le_int(16);
+ fwrite(&itmp, 4, 1, file);
+
+ stmp = le_short(1);
+ fwrite(&stmp, 2, 1, file);
+
+ stmp = le_short(channels);
+ fwrite(&stmp, 2, 1, file);
+
+ itmp = le_int(rate);
+ fwrite(&itmp, 4, 1, file);
+
+ itmp = le_int(rate*channels*2);
+ fwrite(&itmp, 4, 1, file);
+
+ stmp = le_short(2*channels);
+ fwrite(&stmp, 2, 1, file);
+
+ stmp = le_short(16);
+ fwrite(&stmp, 2, 1, file);
+
+ fprintf (file, "data");
+
+ itmp = le_int(0x7fffffff);
+ fwrite(&itmp, 4, 1, file);
+
+
+}
--- /dev/null
+++ b/tools/wav_io.h
@@ -1,0 +1,66 @@
+/* Copyright (C) 2002 Jean-Marc Valin
+ File: wav_io.h
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ - Neither the name of the Xiph.org Foundation nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef WAV_IO_H
+#define WAV_IO_H
+
+#include <stdio.h>
+#include "celt_types.h"
+
+#if !defined(__LITTLE_ENDIAN__) && ( defined(WORDS_BIGENDIAN) || defined(__BIG_ENDIAN__) )
+#define le_short(s) ((short) ((unsigned short) (s) << 8) | ((unsigned short) (s) >> 8))
+#define be_short(s) ((short) (s))
+#else
+#define le_short(s) ((short) (s))
+#define be_short(s) ((short) ((unsigned short) (s) << 8) | ((unsigned short) (s) >> 8))
+#endif
+
+/** Convert little endian */
+static inline celt_int32_t le_int(celt_int32_t i)
+{+#if !defined(__LITTLE_ENDIAN__) && ( defined(WORDS_BIGENDIAN) || defined(__BIG_ENDIAN__) )
+ celt_uint32_t ui, ret;
+ ui = i;
+ ret = ui>>24;
+ ret |= (ui>>8)&0x0000ff00;
+ ret |= (ui<<8)&0x00ff0000;
+ ret |= (ui<<24);
+ return ret;
+#else
+ return i;
+#endif
+}
+
+int read_wav_header(FILE *file, int *rate, int *channels, int *format, celt_int32_t *size);
+
+void write_wav_header(FILE *file, int rate, int channels, int format, int size);
+
+#endif