--- /dev/null
+/* Copyright (C) 2002-2006 Jean-Marc Valin
+ File: speexdec.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 <ext/speex/speex.h>
+#include <ext/libogg/ogg.h>
+
+#if defined WIN32 || defined _WIN32
+#include "wave_out.h"
+/* We need the following two to set stdout to binary */
+#include <io.h>
+#include <fcntl.h>
+#endif
+#include <math.h>
+
+#ifdef __MINGW32__
+#include "wave_out.c"
+#endif
+
+#ifdef HAVE_SYS_SOUNDCARD_H
+#include <sys/soundcard.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+#elif defined HAVE_SYS_AUDIOIO_H
+#include <sys/types.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/audioio.h>
+#ifndef AUDIO_ENCODING_SLINEAR
+#define AUDIO_ENCODING_SLINEAR AUDIO_ENCODING_LINEAR /* Solaris */
+#endif
+
+#endif
+
+#include <string.h>
+#include "wav_io.h"
+#include <speex/speex_header.h>
+#include <speex/speex_stereo.h>
+#include <speex/speex_callbacks.h>
+
+#define MAX_FRAME_SIZE 2000
+
+#define readint(buf, base) (((buf[base+3]<<24)&0xff000000)| \
+ ((buf[base+2]<<16)&0xff0000)| \
+ ((buf[base+1]<<8)&0xff00)| \
+ (buf[base]&0xff))
+
+static void print_comments(char *comments, int length)
+{
+ char *c=comments;
+ int len, i, nb_fields;
+ char *end;
+
+ if (length<8)
+ {
+ fprintf (stderr, "Invalid/corrupted comments\n");
+ return;
+ }
+ end = c+length;
+ len=readint(c, 0);
+ c+=4;
+ if (len < 0 || c+len>end)
+ {
+ fprintf (stderr, "Invalid/corrupted comments\n");
+ return;
+ }
+ fwrite(c, 1, len, stderr);
+ c+=len;
+ fprintf (stderr, "\n");
+ if (c+4>end)
+ {
+ fprintf (stderr, "Invalid/corrupted comments\n");
+ return;
+ }
+ nb_fields=readint(c, 0);
+ c+=4;
+ for (i=0;i<nb_fields;i++)
+ {
+ if (c+4>end)
+ {
+ fprintf (stderr, "Invalid/corrupted comments\n");
+ return;
+ }
+ len=readint(c, 0);
+ c+=4;
+ if (len < 0 || c+len>end)
+ {
+ fprintf (stderr, "Invalid/corrupted comments\n");
+ return;
+ }
+ fwrite(c, 1, len, stderr);
+ c+=len;
+ fprintf (stderr, "\n");
+ }
+}
+
+FILE *out_file_open(char *outFile, int rate, int *channels)
+{
+ FILE *fout=NULL;
+ /*Open output file*/
+ if (strlen(outFile)==0)
+ {
+#if defined HAVE_SYS_SOUNDCARD_H
+ int audio_fd, format, stereo;
+ audio_fd=open("/dev/dsp", O_WRONLY);
+ if (audio_fd<0)
+ {
+ perror("Cannot open /dev/dsp");
+ exit(1);
+ }
+
+ format=AFMT_S16_NE;
+ if (ioctl(audio_fd, SNDCTL_DSP_SETFMT, &format)==-1)
+ {
+ perror("SNDCTL_DSP_SETFMT");
+ close(audio_fd);
+ exit(1);
+ }
+
+ stereo=0;
+ if (*channels==2)
+ stereo=1;
+ if (ioctl(audio_fd, SNDCTL_DSP_STEREO, &stereo)==-1)
+ {
+ perror("SNDCTL_DSP_STEREO");
+ close(audio_fd);
+ exit(1);
+ }
+ if (stereo!=0)
+ {
+ if (*channels==1)
+ fprintf (stderr, "Cannot set mono mode, will decode in stereo\n");
+ *channels=2;
+ }
+
+ if (ioctl(audio_fd, SNDCTL_DSP_SPEED, &rate)==-1)
+ {
+ perror("SNDCTL_DSP_SPEED");
+ close(audio_fd);
+ exit(1);
+ }
+ fout = fdopen(audio_fd, "w");
+#elif defined HAVE_SYS_AUDIOIO_H
+ audio_info_t info;
+ int audio_fd;
+
+ audio_fd = open("/dev/audio", O_WRONLY);
+ if (audio_fd<0)
+ {
+ perror("Cannot open /dev/audio");
+ exit(1);
+ }
+
+ AUDIO_INITINFO(&info);
+#ifdef AUMODE_PLAY /* NetBSD/OpenBSD */
+ info.mode = AUMODE_PLAY;
+#endif
+ info.play.encoding = AUDIO_ENCODING_SLINEAR;
+ info.play.precision = 16;
+ info.play.sample_rate = rate;
+ info.play.channels = *channels;
+
+ if (ioctl(audio_fd, AUDIO_SETINFO, &info) < 0)
+ {
+ perror ("AUDIO_SETINFO");
+ exit(1);
+ }
+ fout = fdopen(audio_fd, "w");
+#elif defined WIN32 || defined _WIN32
+ {
+ unsigned int speex_channels = *channels;
+ if (Set_WIN_Params (INVALID_FILEDESC, rate, SAMPLE_SIZE, speex_channels))
+ {
+ fprintf (stderr, "Can't access %s\n", "WAVE OUT");
+ exit(1);
+ }
+ }
+#else
+ fprintf (stderr, "No soundcard support\n");
+ exit(1);
+#endif
+ } else {
+ if (strcmp(outFile,"-")==0)
+ {
+#if defined WIN32 || defined _WIN32
+ _setmode(_fileno(stdout), _O_BINARY);
+#elif defined OS2
+ _fsetmode(stdout,"b");
+#endif
+ fout=stdout;
+ }
+ else
+ {
+ fout = fopen(outFile, "wb");
+ if (!fout)
+ {
+ perror(outFile);
+ exit(1);
+ }
+ if (strcmp(outFile+strlen(outFile)-4,".wav")==0 || strcmp(outFile+strlen(outFile)-4,".WAV")==0)
+ write_wav_header(fout, rate, *channels, 0, 0);
+ }
+ }
+ return fout;
+}
+
+void usage()
+{
+ printf ("Usage: speexdec [options] input_file.spx [output_file]\n");
+ printf ("\n");
+ printf ("Decodes a Speex file and produce a WAV file or raw file\n");
+ printf ("\n");
+ printf ("input_file can be:\n");
+ printf (" filename.spx regular Speex file\n");
+ printf (" - stdin\n");
+ printf ("\n");
+ printf ("output_file can be:\n");
+ printf (" filename.wav Wav file\n");
+ printf (" filename.* Raw PCM file (any extension other that .wav)\n");
+ printf (" - stdout\n");
+ printf (" (nothing) Will be played to soundcard\n");
+ printf ("\n");
+ printf ("Options:\n");
+ printf (" --enh Enable perceptual enhancement (default)\n");
+ printf (" --no-enh Disable perceptual enhancement\n");
+ printf (" --force-nb Force decoding in narrowband\n");
+ printf (" --force-wb Force decoding in wideband\n");
+ printf (" --force-uwb Force decoding in ultra-wideband\n");
+ printf (" --mono Force decoding in mono\n");
+ printf (" --stereo Force decoding in stereo\n");
+ printf (" --rate n Force decoding at sampling rate n Hz\n");
+ printf (" --packet-loss n Simulate n %% random packet loss\n");
+ printf (" -V Verbose mode (show bit-rate)\n");
+ printf (" -h, --help This help\n");
+ printf (" -v, --version Version information\n");
+ printf (" --pf Deprecated, use --enh instead\n");
+ printf (" --no-pf Deprecated, use --no-enh instead\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 `speex-dev@xiph.org'.\n");
+}
+
+void version()
+{
+ const char* speex_version;
+ speex_lib_ctl(SPEEX_LIB_GET_VERSION_STRING, (void*)&speex_version);
+ printf ("speexdec (Speex decoder) version %s (compiled " __DATE__ ")\n", speex_version);
+ printf ("Copyright (C) 2002-2006 Jean-Marc Valin\n");
+}
+
+void version_short()
+{
+ const char* speex_version;
+ speex_lib_ctl(SPEEX_LIB_GET_VERSION_STRING, (void*)&speex_version);
+ printf ("speexdec version %s\n", speex_version);
+ printf ("Copyright (C) 2002-2006 Jean-Marc Valin\n");
+}
+
+static void *process_header(ogg_packet *op, spx_int32_t enh_enabled, spx_int32_t *frame_size, int *granule_frame_size, spx_int32_t *rate, int *nframes, int forceMode, int *channels, SpeexStereoState *stereo, int *extra_headers, int quiet)
+{
+ void *st;
+ const SpeexMode *mode;
+ SpeexHeader *header;
+ int modeID;
+ SpeexCallback callback;
+
+ header = speex_packet_to_header((char*)op->packet, op->bytes);
+ if (!header)
+ {
+ fprintf (stderr, "Cannot read header\n");
+ return NULL;
+ }
+ if (header->mode >= SPEEX_NB_MODES || header->mode<0)
+ {
+ fprintf (stderr, "Mode number %d does not (yet/any longer) exist in this version\n",
+ header->mode);
+ free(header);
+ return NULL;
+ }
+
+ modeID = header->mode;
+ if (forceMode!=-1)
+ modeID = forceMode;
+
+ mode = speex_lib_get_mode (modeID);
+
+ if (header->speex_version_id > 1)
+ {
+ fprintf (stderr, "This file was encoded with Speex bit-stream version %d, which I don't know how to decode\n", header->speex_version_id);
+ free(header);
+ return NULL;
+ }
+
+ if (mode->bitstream_version < header->mode_bitstream_version)
+ {
+ fprintf (stderr, "The file was encoded with a newer version of Speex. You need to upgrade in order to play it.\n");
+ free(header);
+ return NULL;
+ }
+ if (mode->bitstream_version > header->mode_bitstream_version)
+ {
+ fprintf (stderr, "The file was encoded with an older version of Speex. You would need to downgrade the version in order to play it.\n");
+ free(header);
+ return NULL;
+ }
+
+ st = speex_decoder_init(mode);
+ if (!st)
+ {
+ fprintf (stderr, "Decoder initialization failed.\n");
+ free(header);
+ return NULL;
+ }
+ speex_decoder_ctl(st, SPEEX_SET_ENH, &enh_enabled);
+ speex_decoder_ctl(st, SPEEX_GET_FRAME_SIZE, frame_size);
+ *granule_frame_size = *frame_size;
+
+ if (!*rate)
+ *rate = header->rate;
+ /* Adjust rate if --force-* options are used */
+ if (forceMode!=-1)
+ {
+ if (header->mode < forceMode)
+ {
+ *rate <<= (forceMode - header->mode);
+ *granule_frame_size >>= (forceMode - header->mode);
+ }
+ if (header->mode > forceMode)
+ {
+ *rate >>= (header->mode - forceMode);
+ *granule_frame_size <<= (header->mode - forceMode);
+ }
+ }
+
+
+ speex_decoder_ctl(st, SPEEX_SET_SAMPLING_RATE, rate);
+
+ *nframes = header->frames_per_packet;
+
+ if (*channels==-1)
+ *channels = header->nb_channels;
+
+ if (!(*channels==1))
+ {
+ *channels = 2;
+ callback.callback_id = SPEEX_INBAND_STEREO;
+ callback.func = speex_std_stereo_request_handler;
+ callback.data = stereo;
+ speex_decoder_ctl(st, SPEEX_SET_HANDLER, &callback);
+ }
+
+ if (!quiet)
+ {
+ fprintf (stderr, "Decoding %d Hz audio using %s mode",
+ *rate, mode->modeName);
+
+ if (*channels==1)
+ fprintf (stderr, " (mono");
+ else
+ fprintf (stderr, " (stereo");
+
+ if (header->vbr)
+ fprintf (stderr, ", VBR)\n");
+ else
+ fprintf(stderr, ")\n");
+ /*fprintf (stderr, "Decoding %d Hz audio at %d bps using %s mode\n",
+ *rate, mode->bitrate, mode->modeName);*/
+ }
+
+ *extra_headers = header->extra_headers;
+
+ free(header);
+ return st;
+}
+
+int main(int argc, char **argv)
+{
+ int c;
+ int option_index = 0;
+ char *inFile, *outFile;
+ FILE *fin, *fout=NULL;
+ short out[MAX_FRAME_SIZE];
+ short output[MAX_FRAME_SIZE];
+ int frame_size=0, granule_frame_size=0;
+ void *st=NULL;
+ SpeexBits bits;
+ int packet_count=0;
+ int stream_init = 0;
+ int quiet = 0;
+ ogg_int64_t page_granule=0, last_granule=0;
+ int skip_samples=0, page_nb_packets;
+ struct option long_options[] =
+ {
+ {"help", no_argument, NULL, 0},
+ {"quiet", no_argument, NULL, 0},
+ {"version", no_argument, NULL, 0},
+ {"version-short", no_argument, NULL, 0},
+ {"enh", no_argument, NULL, 0},
+ {"no-enh", no_argument, NULL, 0},
+ {"pf", no_argument, NULL, 0},
+ {"no-pf", no_argument, NULL, 0},
+ {"force-nb", no_argument, NULL, 0},
+ {"force-wb", no_argument, NULL, 0},
+ {"force-uwb", no_argument, NULL, 0},
+ {"rate", required_argument, NULL, 0},
+ {"mono", no_argument, NULL, 0},
+ {"stereo", no_argument, NULL, 0},
+ {"packet-loss", required_argument, NULL, 0},
+ {0, 0, 0, 0}
+ };
+ ogg_sync_state oy;
+ ogg_page og;
+ ogg_packet op;
+ ogg_stream_state os;
+ int enh_enabled;
+ int nframes=2;
+ int print_bitrate=0;
+ int close_in=0;
+ int eos=0;
+ int forceMode=-1;
+ int audio_size=0;
+ float loss_percent=-1;
+ SpeexStereoState stereo = SPEEX_STEREO_STATE_INIT;
+ int channels=-1;
+ int rate=0;
+ int extra_headers=0;
+ int wav_format=0;
+ int lookahead;
+ int speex_serialno = -1;
+
+ enh_enabled = 1;
+
+ /*Process 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,"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,"enh")==0)
+ {
+ enh_enabled=1;
+ } else if (strcmp(long_options[option_index].name,"no-enh")==0)
+ {
+ enh_enabled=0;
+ } else if (strcmp(long_options[option_index].name,"pf")==0)
+ {
+ fprintf (stderr, "--pf is deprecated, use --enh instead\n");
+ enh_enabled=1;
+ } else if (strcmp(long_options[option_index].name,"no-pf")==0)
+ {
+ fprintf (stderr, "--no-pf is deprecated, use --no-enh instead\n");
+ enh_enabled=0;
+ } else if (strcmp(long_options[option_index].name,"force-nb")==0)
+ {
+ forceMode=0;
+ } else if (strcmp(long_options[option_index].name,"force-wb")==0)
+ {
+ forceMode=1;
+ } else if (strcmp(long_options[option_index].name,"force-uwb")==0)
+ {
+ forceMode=2;
+ } else if (strcmp(long_options[option_index].name,"mono")==0)
+ {
+ channels=1;
+ } else if (strcmp(long_options[option_index].name,"stereo")==0)
+ {
+ channels=2;
+ } else if (strcmp(long_options[option_index].name,"rate")==0)
+ {
+ rate=atoi (optarg);
+ } else if (strcmp(long_options[option_index].name,"packet-loss")==0)
+ {
+ loss_percent = atof(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 && argc-optind!=1)
+ {
+ usage();
+ exit(1);
+ }
+ inFile=argv[optind];
+
+ if (argc-optind==2)
+ outFile=argv[optind+1];
+ else
+ outFile = "";
+ wav_format = strlen(outFile)>=4 && (
+ strcmp(outFile+strlen(outFile)-4,".wav")==0
+ || strcmp(outFile+strlen(outFile)-4,".WAV")==0);
+ /*Open input file*/
+ if (strcmp(inFile, "-")==0)
+ {
+#if defined WIN32 || defined _WIN32
+ _setmode(_fileno(stdin), _O_BINARY);
+#endif
+ fin=stdin;
+ }
+ else
+ {
+ fin = fopen(inFile, "rb");
+ if (!fin)
+ {
+ perror(inFile);
+ exit(1);
+ }
+ close_in=1;
+ }
+
+
+ /*Init Ogg data struct*/
+ ogg_sync_init(&oy);
+
+ speex_bits_init(&bits);
+ /*Main decoding loop*/
+
+ while (1)
+ {
+ char *data;
+ int i, j, nb_read;
+ /*Get the ogg buffer for writing*/
+ data = ogg_sync_buffer(&oy, 200);
+ /*Read bitstream from input file*/
+ nb_read = fread(data, sizeof(char), 200, fin);
+ ogg_sync_wrote(&oy, nb_read);
+
+ /*Loop for all complete pages we got (most likely only one)*/
+ while (ogg_sync_pageout(&oy, &og)==1)
+ {
+ int packet_no;
+ if (stream_init == 0) {
+ ogg_stream_init(&os, ogg_page_serialno(&og));
+ stream_init = 1;
+ }
+ if (ogg_page_serialno(&og) != os.serialno) {
+ /* so all streams are read. */
+ ogg_stream_reset_serialno(&os, ogg_page_serialno(&og));
+ }
+ /*Add page to the bitstream*/
+ ogg_stream_pagein(&os, &og);
+ page_granule = ogg_page_granulepos(&og);
+ page_nb_packets = ogg_page_packets(&og);
+ if (page_granule>0 && frame_size)
+ {
+ /* FIXME: shift the granule values if --force-* is specified */
+ skip_samples = frame_size*(page_nb_packets*granule_frame_size*nframes - (page_granule-last_granule))/granule_frame_size;
+ if (ogg_page_eos(&og))
+ skip_samples = -skip_samples;
+ /*else if (!ogg_page_bos(&og))
+ skip_samples = 0;*/
+ } else
+ {
+ skip_samples = 0;
+ }
+ /*printf ("page granulepos: %d %d %d\n", skip_samples, page_nb_packets, (int)page_granule);*/
+ last_granule = page_granule;
+ /*Extract all available packets*/
+ packet_no=0;
+ while (!eos && ogg_stream_packetout(&os, &op) == 1)
+ {
+ if (op.bytes>=5 && !memcmp(op.packet, "Speex", 5)) {
+ speex_serialno = os.serialno;
+ }
+ if (speex_serialno == -1 || os.serialno != speex_serialno)
+ break;
+ /*If first packet, process as Speex header*/
+ if (packet_count==0)
+ {
+ st = process_header(&op, enh_enabled, &frame_size, &granule_frame_size, &rate, &nframes, forceMode, &channels, &stereo, &extra_headers, quiet);
+ if (!st)
+ exit(1);
+ speex_decoder_ctl(st, SPEEX_GET_LOOKAHEAD, &lookahead);
+ if (!nframes)
+ nframes=1;
+ fout = out_file_open(outFile, rate, &channels);
+
+ } else if (packet_count==1)
+ {
+ if (!quiet)
+ print_comments((char*)op.packet, op.bytes);
+ } else if (packet_count<=1+extra_headers)
+ {
+ /* Ignore extra headers */
+ } else {
+ int lost=0;
+ packet_no++;
+ if (loss_percent>0 && 100*((float)rand())/RAND_MAX<loss_percent)
+ lost=1;
+
+ /*End of stream condition*/
+ if (op.e_o_s && os.serialno == speex_serialno) /* don't care for anything except speex eos */
+ eos=1;
+
+ /*Copy Ogg packet to Speex bitstream*/
+ speex_bits_read_from(&bits, (char*)op.packet, op.bytes);
+ for (j=0;j!=nframes;j++)
+ {
+ int ret;
+ /*Decode frame*/
+ if (!lost)
+ ret = speex_decode_int(st, &bits, output);
+ else
+ ret = speex_decode_int(st, NULL, output);
+
+ /*for (i=0;i<frame_size*channels;i++)
+ printf ("%d\n", (int)output[i]);*/
+
+ if (ret==-1)
+ break;
+ if (ret==-2)
+ {
+ fprintf (stderr, "Decoding error: corrupted stream?\n");
+ break;
+ }
+ if (speex_bits_remaining(&bits)<0)
+ {
+ fprintf (stderr, "Decoding overflow: corrupted stream?\n");
+ break;
+ }
+ if (channels==2)
+ speex_decode_stereo_int(output, frame_size, &stereo);
+
+ if (print_bitrate) {
+ spx_int32_t tmp;
+ char ch=13;
+ speex_decoder_ctl(st, SPEEX_GET_BITRATE, &tmp);
+ fputc (ch, stderr);
+ fprintf (stderr, "Bitrate is use: %d bps ", tmp);
+ }
+ /*Convert to short and save to output file*/
+ if (strlen(outFile)!=0)
+ {
+ for (i=0;i<frame_size*channels;i++)
+ out[i]=le_short(output[i]);
+ } else {
+ for (i=0;i<frame_size*channels;i++)
+ out[i]=output[i];
+ }
+ {
+ int frame_offset = 0;
+ int new_frame_size = frame_size;
+ /*printf ("packet %d %d\n", packet_no, skip_samples);*/
+ /*fprintf (stderr, "packet %d %d %d\n", packet_no, skip_samples, lookahead);*/
+ if (packet_no == 1 && j==0 && skip_samples > 0)
+ {
+ /*printf ("chopping first packet\n");*/
+ new_frame_size -= skip_samples+lookahead;
+ frame_offset = skip_samples+lookahead;
+ }
+ if (packet_no == page_nb_packets && skip_samples < 0)
+ {
+ int packet_length = nframes*frame_size+skip_samples+lookahead;
+ new_frame_size = packet_length - j*frame_size;
+ if (new_frame_size<0)
+ new_frame_size = 0;
+ if (new_frame_size>frame_size)
+ new_frame_size = frame_size;
+ /*printf ("chopping end: %d %d %d\n", new_frame_size, packet_length, packet_no);*/
+ }
+ if (new_frame_size>0)
+ {
+#if defined WIN32 || defined _WIN32
+ if (strlen(outFile)==0)
+ WIN_Play_Samples (out+frame_offset*channels, sizeof(short) * new_frame_size*channels);
+ else
+#endif
+ fwrite(out+frame_offset*channels, sizeof(short), new_frame_size*channels, fout);
+
+ audio_size+=sizeof(short)*new_frame_size*channels;
+ }
+ }
+ }
+ }
+ packet_count++;
+ }
+ }
+ if (feof(fin))
+ break;
+
+ }
+
+ if (fout && wav_format)
+ {
+ if (fseek(fout,4,SEEK_SET)==0)
+ {
+ int tmp;
+ tmp = le_int(audio_size+36);
+ fwrite(&tmp,4,1,fout);
+ if (fseek(fout,32,SEEK_CUR)==0)
+ {
+ tmp = le_int(audio_size);
+ fwrite(&tmp,4,1,fout);
+ } else
+ {
+ fprintf (stderr, "First seek worked, second didn't\n");
+ }
+ } else {
+ fprintf (stderr, "Cannot seek on wave file, size will be incorrect\n");
+ }
+ }
+
+ if (st)
+ speex_decoder_destroy(st);
+ else
+ {
+ fprintf (stderr, "This doesn't look like a Speex file\n");
+ }
+ speex_bits_destroy(&bits);
+ if (stream_init)
+ ogg_stream_clear(&os);
+ ogg_sync_clear(&oy);
+
+#if defined WIN32 || defined _WIN32
+ if (strlen(outFile)==0)
+ WIN_Audio_close ();
+#endif
+
+ if (close_in)
+ fclose(fin);
+ if (fout != NULL)
+ fclose(fout);
+
+ return 0;
+}
projects / 16.git / blobdiff