int
main (int argc, char ** argv)
{
FILE * f;
OGGZ * oggz;
long n;
ogg_int64_t units;
if (argc < 2) {
printf ("usage: %s filename\n", argv[0]);
}
if ((f = fopen ((char *)argv[1], "rb")) == NULL) {
printf ("unable to open file %s\n", argv[1]);
exit (1);
}
if ((oggz = oggz_new (OGGZ_READ | OGGZ_AUTO)) == NULL) {
printf ("unable to create oggz\n");
exit (1);
}
oggz_io_set_read (oggz, my_io_read, f);
oggz_io_set_seek (oggz, my_io_seek, f);
oggz_io_set_tell (oggz, my_io_tell, f);
oggz_set_read_callback (oggz, -1, read_packet, NULL);
while ((n = oggz_read (oggz, 1024)) > 0);
units = oggz_tell_units (oggz);
printf ("Total length: %" PRId64 " ms\n", units);
oggz_seek_units (oggz, units/2, SEEK_SET);
printf ("seeked to byte offset %" PRId64 "\n", oggz_tell (oggz));
while ((n = oggz_read (oggz, 1024)) > 0);
oggz_close (oggz);
exit (0);
}
void
speex_dec_seek(decoder_t * dec, unsigned long long seek_to_pos) {
speex_pdata_t * pd = (speex_pdata_t *)dec->pdata;
file_decoder_t * fdec = dec->fdec;
char flush_dest;
if (seek_to_pos == fdec->fileinfo.total_samples)
--seek_to_pos;
if (oggz_seek_units(pd->oggz, seek_to_pos / (float)pd->sample_rate * 1000.0f, SEEK_SET) != -1) {
if (seek_to_pos == 0) {
pd->packetno = 0;
}
fdec->samples_left = fdec->fileinfo.total_samples - seek_to_pos;
/* empty speex decoder ringbuffer */
while (rb_read_space(pd->rb))
rb_read(pd->rb, &flush_dest, sizeof(char));
} else {
fprintf(stderr, "speex_dec_seek(): warning: oggz_seek_units() returned -1\n");
}
}
