static void
fragroute_config(char *config)
{
if (mod_open(config) < 0) {
fragroute_close();
exit(1);
}
}
int mod_decode(OutputBuffer * cb, DecoderControl * dc, char * path) {
mod_Data * data;
float time = 0.0;
int ret;
float secPerByte;
if(mod_initMikMod() < 0) return -1;
if(!(data = mod_open(path))) {
ERROR("failed to open mod: %s\n", path);
MikMod_Exit();
return -1;
}
dc->audioFormat.bits = 16;
dc->audioFormat.sampleRate = 44100;
dc->audioFormat.channels = 2;
getOutputAudioFormat(&(dc->audioFormat),&(cb->audioFormat));
secPerByte = 1.0/((dc->audioFormat.bits*dc->audioFormat.channels/8.0)*
(float)dc->audioFormat.sampleRate);
dc->state = DECODE_STATE_DECODE;
while(1) {
if(dc->seek) {
dc->seekError = 1;
dc->seek = 0;
}
if(dc->stop) break;
if(!Player_Active()) break;
ret = VC_WriteBytes(data->audio_buffer, MIKMOD_FRAME_SIZE);
time += ret*secPerByte;
sendDataToOutputBuffer(cb, NULL, dc, 0,
(char *)data->audio_buffer, ret, time,
0, NULL);
}
flushOutputBuffer(cb);
mod_close(data);
MikMod_Exit();
if(dc->stop) {
dc->state = DECODE_STATE_STOP;
dc->stop = 0;
}
else dc->state = DECODE_STATE_STOP;
return 0;
}
/* uam_load. uams must have a uam_setup function. */
struct uam_mod *uam_load(const char *path, const char *name)
{
char buf[MAXPATHLEN + 1], *p;
struct uam_mod *mod;
void *module;
if ((module = mod_open(path)) == NULL) {
LOG(log_error, logtype_afpd, "uam_load(%s): failed to load: %s", name, mod_error());
return NULL;
}
if ((mod = (struct uam_mod *) malloc(sizeof(struct uam_mod))) == NULL) {
LOG(log_error, logtype_afpd, "uam_load(%s): malloc failed", name);
goto uam_load_fail;
}
strlcpy(buf, name, sizeof(buf));
if ((p = strchr(buf, '.')))
*p = '\0';
if ((mod->uam_fcn = mod_symbol(module, buf)) == NULL) {
LOG(log_error, logtype_afpd, "uam_load(%s): mod_symbol error for symbol %s",
name,
buf);
goto uam_load_err;
}
if (mod->uam_fcn->uam_type != UAM_MODULE_SERVER) {
LOG(log_error, logtype_afpd, "uam_load(%s): attempted to load a non-server module",
name);
goto uam_load_err;
}
/* version check would go here */
if (!mod->uam_fcn->uam_setup ||
((*mod->uam_fcn->uam_setup)(name) < 0)) {
LOG(log_error, logtype_afpd, "uam_load(%s): uam_setup failed", name);
goto uam_load_err;
}
mod->uam_module = module;
return mod;
uam_load_err:
free(mod);
uam_load_fail:
mod_close(module);
return NULL;
}
int main(int ac, char** av)
{
pcm_desc_t desc;
pcm_handle_t ipcm;
pcm_handle_t opcm;
mod_handle_t mod;
int err;
cmdline_t cmd;
size_t i;
err = -1;
if (get_cmdline(&cmd, ac - 1, av + 1)) goto on_error_0;
pcm_init_desc(&desc);
desc.flags |= PCM_FLAG_IN;
if (cmd.flags & CMDLINE_FLAG(IPCM)) desc.name = cmd.ipcm;
if (pcm_open(&ipcm, &desc)) goto on_error_0;
pcm_init_desc(&desc);
desc.flags |= PCM_FLAG_OUT;
if (cmd.flags & CMDLINE_FLAG(OPCM)) desc.name = cmd.opcm;
if (pcm_open(&opcm, &desc)) goto on_error_1;
if (mod_open(&mod, 512)) goto on_error_2;
if (pcm_start(&ipcm)) goto on_error_3;
if (pcm_start(&opcm)) goto on_error_3;
signal(SIGINT, on_sigint);
for (i = 0; is_sigint == 0; i += 1)
{
size_t nsampl;
size_t navail;
size_t off;
/* read ipcm */
err = snd_pcm_wait(ipcm.pcm, -1);
if (is_sigint) break ;
if (err < 0) goto on_ipcm_xrun;
navail = (size_t)snd_pcm_avail_update(ipcm.pcm);
if (ipcm.wpos >= ipcm.rpos) nsampl = ipcm.nsampl - ipcm.wpos;
else nsampl = ipcm.rpos - ipcm.wpos;
if (nsampl > navail) nsampl = navail;
off = ipcm.wpos * ipcm.scale;
err = snd_pcm_readi(ipcm.pcm, ipcm.buf + off, nsampl);
if (err < 0) goto on_ipcm_xrun;
ipcm.wpos += (size_t)err;
if (ipcm.wpos == ipcm.nsampl) ipcm.wpos = 0;
/* apply modifier */
redo_mod:
if (ipcm.wpos >= ipcm.rpos) nsampl = ipcm.wpos - ipcm.rpos;
else nsampl = ipcm.nsampl - ipcm.rpos + ipcm.wpos;
if (cmd.flags & CMDLINE_FLAG(FILT))
{
const size_t n = mod_apply
(&mod, ipcm.buf, ipcm.nsampl, ipcm.rpos, nsampl);
nsampl = n;
}
if (nsampl == 0) continue ;
if ((ipcm.rpos + nsampl) > ipcm.nsampl)
{
const size_t n = ipcm.nsampl - ipcm.rpos;
off = ipcm.rpos * ipcm.scale;
err = snd_pcm_writei(opcm.pcm, ipcm.buf + off, n);
if (err < 0) goto on_opcm_xrun;
nsampl -= n;
ipcm.rpos = 0;
}
off = ipcm.rpos * ipcm.scale;
err = snd_pcm_writei(opcm.pcm, ipcm.buf + off, nsampl);
if (err < 0) goto on_opcm_xrun;
ipcm.rpos += nsampl;
if (ipcm.rpos == ipcm.nsampl) ipcm.rpos = 0;
goto redo_mod;
continue ;
on_ipcm_xrun:
if (pcm_recover_xrun(&ipcm, err)) PERROR_GOTO("", on_error_2);
continue ;
on_opcm_xrun:
if (pcm_recover_xrun(&opcm, err)) PERROR_GOTO("", on_error_2);
continue ;
}
err = 0;
on_error_3:
mod_close(&mod);
on_error_2:
pcm_close(&opcm);
on_error_1:
pcm_close(&ipcm);
on_error_0:
return err;
}