VGMSTREAM * init_vgmstream_sab(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
STREAMFILE* sob = NULL;
char filename[1024];
int i;
int loop_flag, channel_count, numSounds;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("sab",filename_extension(filename))) goto fail;
/* read information from sob file*/
filename[strlen(filename)-2]='o'; //change extension in sob of file
sob = open_stdio_streamfile(filename);
if(!sob) goto fail;
filename[strlen(filename)-2]='a';//change back to original file
if (read_32bitBE(0,streamFile)!=0x43535732)//CSW2 header sab file
{
goto fail;
}
if (read_32bitBE(0,sob)!=0x43544632)//CTF2 header sob file
{
goto fail;
}
numSounds = read_32bitLE(8,sob);
if(numSounds==1)
{//it means it's a single stream and not a voice bank
loop_flag = 1;
}else
{
loop_flag = 0;
}
/* Read channels */
channel_count = read_32bitLE(0x30,sob);
if( (channel_count>2)||(numSounds>1))/* dirty hack for number of channels*/
channel_count = 1;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
//is offset OK. sab files can contain more audio files, but without the sob it's just a long stream of sound effects
vgmstream->current_block_offset=8+32*numSounds;
vgmstream->channels = channel_count;
vgmstream->sample_rate = read_32bitLE(0x20,streamFile);
vgmstream->coding_type = coding_PCM16LE_int;
vgmstream->num_samples = (int32_t)((get_streamfile_size(streamFile)-vgmstream->current_block_offset)/2/channel_count);
if(loop_flag)
{
vgmstream->loop_start_sample = 0;
vgmstream->loop_end_sample = vgmstream->num_samples;
}
vgmstream->layout_type = layout_none;
vgmstream->meta_type = meta_PC_SOB_SAB;
{
for (i=0;i<channel_count;i++) {
vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!vgmstream->ch[i].streamfile) goto fail;
vgmstream->ch[i].channel_start_offset=
vgmstream->ch[i].offset=vgmstream->current_block_offset+2*i;
}
}
close_streamfile(sob);
return vgmstream;
/* clean up anything we may have opened */
fail:
if (sob) close_streamfile(sob);
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}
static int play_vgmstream(const char *filename, struct params *par) {
int ret = 0;
STREAMFILE *sf;
VGMSTREAM *vgms;
FILE *save_fps[4];
int loop_count;
int64_t total_samples;
size_t buffer_size;
int64_t buffer_samples;
int64_t fade_time_samples, fade_start;
int time_total_min;
double time_total_sec;
int64_t s;
int i;
sf = open_stdio_streamfile(filename);
if (!sf) {
fprintf(stderr, "%s: cannot open file\n", filename);
return -1;
}
sf->stream_index = par->stream_index;
vgms = init_vgmstream_from_STREAMFILE(sf);
close_streamfile(sf);
if (!vgms) {
fprintf(stderr, "%s: error opening stream\n", filename);
return -1;
}
printf("Playing stream: %s\n", filename);
/* Print metadata in verbose mode
*/
if (verbose) {
char description[4096] = { '\0' };
describe_vgmstream(vgms, description, sizeof(description));
puts(description);
putchar('\n');
}
/* If the audio device hasn't been opened yet, then describe it
*/
if (!device) {
ao_info *info = ao_driver_info(driver_id);
printf("Audio device: %s\n", info->name);
printf("Comment: %s\n", info->comment);
putchar('\n');
}
/* Stupid hack to hang onto a few low-numbered file descriptors
* so that play_compressed_file() doesn't break, due to POSIX
* wackiness like https://bugs.debian.org/590920
*/
for (i = 0; i < 4; i++)
save_fps[i] = fopen("/dev/null", "r");
ret = set_sample_format(vgms);
if (ret) goto fail;
loop_count = par->loop_count;
if (vgms->loop_flag && loop_count < 0) {
/*
* Calculate how many loops are needed to achieve a minimum
* playback time. Note: This calculation is derived from the
* logic in get_vgmstream_play_samples().
*/
double intro = (double)vgms->loop_start_sample / vgms->sample_rate;
double loop = (double)(vgms->loop_end_sample - vgms->loop_start_sample) / vgms->sample_rate;
double end = par->fade_time + par->fade_delay;
if (loop < 1.0) loop = 1.0;
loop_count = (int)((par->min_time - intro - end) / loop + 0.99);
if (loop_count < 1) loop_count = 1;
}
total_samples = get_vgmstream_play_samples(loop_count, par->fade_time, par->fade_delay, vgms);
{
double total = (double)total_samples / vgms->sample_rate;
time_total_min = (int)total / 60;
time_total_sec = total - 60 * time_total_min;
}
/* Buffer size in bytes
*/
buffer_size = 1024 * buffer_size_kb;
if (!buffer) {
if (buffer_size_kb < 1) {
fprintf(stderr, "Invalid buffer size '%d'\n", buffer_size_kb);
return -1;
}
buffer = malloc(buffer_size);
if (!buffer) goto fail;
}
buffer_samples = buffer_size / (vgms->channels * sizeof(sample));
fade_time_samples = (int64_t)(par->fade_time * vgms->sample_rate);
fade_start = total_samples - fade_time_samples;
if (fade_start < 0)
fade_start = total_samples;
for (s = 0; s < total_samples && !interrupted; s += buffer_samples) {
int64_t buffer_used_samples = MIN(buffer_samples, total_samples - s);
char *suffix = "";
render_vgmstream(buffer, buffer_used_samples, vgms);
#ifdef LITTLE_ENDIAN_OUTPUT
swap_samples_le(buffer, vgms->channels * buffer_used_samples);
#endif
if (vgms->loop_flag && fade_time_samples > 0 && s >= fade_start) {
/* Got to do the fade-out ourselves :p */
int64_t b;
for (b = 0; b < buffer_used_samples; b++) {
double factor = 1.0 - (double)(s + b - fade_start) / fade_time_samples;
int c;
for (c = 0; c < vgms->channels; c++)
buffer[vgms->channels * b + c] *= factor;
}
suffix = " (fading)";
}
if (verbose && !out_filename) {
double played = (double)s / vgms->sample_rate;
double remain = (double)(total_samples - s) / vgms->sample_rate;
int time_played_min = (int)played / 60;
double time_played_sec = played - 60 * time_played_min;
int time_remain_min = (int)remain / 60;
double time_remain_sec = remain - 60 * time_remain_min;
/* Time: 01:02.34 [08:57.66] of 10:00.00 */
printf("\rTime: %02d:%05.2f [%02d:%05.2f] of %02d:%05.2f%s ",
time_played_min, time_played_sec,
time_remain_min, time_remain_sec,
time_total_min, time_total_sec,
suffix);
fflush(stdout);
}
if (!ao_play(device, (char *)buffer, buffer_used_samples * vgms->channels * sizeof(sample))) {
fputs("\nAudio playback error\n", stderr);
ao_close(device);
device = NULL;
ret = -1;
break;
}
}
if (verbose && !ret) {
/* Clear time status line */
putchar('\r');
for (i = 0; i < 64; i++)
putchar(' ');
putchar('\r');
fflush(stdout);
}
if (out_filename && !ret)
printf("Wrote %02d:%05.2f of audio to %s\n\n",
time_total_min, time_total_sec, out_filename);
if (interrupted) {
fputs("Playback terminated.\n\n", stdout);
ret = record_interrupt();
if (ret) fputs("Exiting...\n", stdout);
}
fail:
close_vgmstream(vgms);
for (i = 0; i < 4; i++)
fclose(save_fps[i]);
return ret;
}
