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-rw-r--r--desiredata/src/s_audio_alsamm.c77
1 files changed, 35 insertions, 42 deletions
diff --git a/desiredata/src/s_audio_alsamm.c b/desiredata/src/s_audio_alsamm.c
index 2631c457..a0a2d101 100644
--- a/desiredata/src/s_audio_alsamm.c
+++ b/desiredata/src/s_audio_alsamm.c
@@ -114,7 +114,7 @@ static int alsamm_outchannels = 0;
static int alsamm_xruns = 0;
static void show_availist() {
- for(int i=1; i<WATCH_PERIODS; i++){
+ for(int i=1; i<WATCH_PERIODS; i++) {
post("%2d:avail i=%7d %s o=%7d(%5d), offset i=%7d %s o=%7d, ptr i=%12p o=%12p, %d xruns ",
i,in_avail[i],(out_avail[i] != in_avail[i])? "!=" : "==" , out_avail[i],out_cm[i],
in_offset[i],(out_offset[i] != in_offset[i])? "!=" : "==" , out_offset[i],
@@ -125,8 +125,8 @@ static void show_availist() {
/* protos */
static int set_hwparams(snd_pcm_t *handle, snd_pcm_hw_params_t *params, int *chs);
static int set_swparams(snd_pcm_t *handle, snd_pcm_sw_params_t *swparams, int playback);
-static int alsamm_start();
-static int alsamm_stop();
+static void alsamm_start();
+static void alsamm_stop();
/* for debugging attach output of alsa mesages to stdout stream */
snd_output_t* alsa_stdout;
@@ -153,7 +153,7 @@ int alsamm_open_audio(int rate) {
/* see add_devname */
/* first have a look which cards we can get and set up device infos for them */
/* init some structures */
- for(i=0;i < ALSA_MAXDEV;i++){
+ for(i=0;i < ALSA_MAXDEV;i++) {
alsa_indev[i].a_synced=alsa_outdev[i].a_synced=0;
alsa_indev[i].a_channels=alsa_outdev[i].a_channels=-1; /* query defaults */
}
@@ -178,7 +178,7 @@ int alsamm_open_audio(int rate) {
sys_schedadvance,sys_advance_samples,alsamm_buffertime,
sys_blocksize,alsamm_buffersize);
alsamm_periods = 0; /* no one wants periods setting from command line ;-) */
- for(i=0;i<alsa_noutdev;i++) {
+ for (i=0;i<alsa_noutdev;i++) {
/* post("open audio out %d, of %lx, %d",i,&alsa_device[i],
alsa_outdev[i].a_handle); */
try {
@@ -191,7 +191,7 @@ int alsamm_open_audio(int rate) {
post("playback device with %d channels and buffer_time %d us opened", alsa_outdev[i].a_channels, alsamm_buffertime);
} catch (AlsaError) {continue;}
}
- for(i=0;i<alsa_nindev;i++) {
+ for (i=0;i<alsa_nindev;i++) {
if(sys_verbose) post("capture card %d:--------------------",i);
CHK(set_hwparams(alsa_indev[i].a_handle, hw_params, &(alsa_indev[i].a_channels)));
alsamm_inchannels += alsa_indev[i].a_channels;
@@ -202,7 +202,7 @@ int alsamm_open_audio(int rate) {
if(sys_verbose) post("capture device with %d channels and buffertime %d us opened", alsa_indev[i].a_channels,alsamm_buffertime);
}
/* check for linked handles of input for each output*/
- for(int i=0; i<(alsa_noutdev < alsa_nindev ? alsa_noutdev:alsa_nindev); i++) {
+ for (int i=0; i<(alsa_noutdev < alsa_nindev ? alsa_noutdev:alsa_nindev); i++) {
if (alsa_outdev[i].a_devno == alsa_indev[i].a_devno) {
if ((err = snd_pcm_link(alsa_indev[i].a_handle, alsa_outdev[i].a_handle)) == 0) {
alsa_indev[i].a_synced = alsa_outdev[i].a_synced = 1;
@@ -217,8 +217,8 @@ int alsamm_open_audio(int rate) {
if(sys_verbose) post("open_audio: after dacsend=%d (xruns=%d)done",dac_send,alsamm_xruns);
alsamm_xruns = dac_send = 0; /* reset debug */
/* start alsa in open or better in send_dacs once ??? we will see */
- for(i=0;i<alsa_noutdev;i++) snd_pcm_dump(alsa_outdev[i].a_handle, alsa_stdout);
- for(i=0;i<alsa_nindev;i++) snd_pcm_dump( alsa_indev[i].a_handle, alsa_stdout);
+ for (int i=0;i<alsa_noutdev;i++) snd_pcm_dump(alsa_outdev[i].a_handle, alsa_stdout);
+ for (int i=0;i<alsa_nindev;i++) snd_pcm_dump( alsa_indev[i].a_handle, alsa_stdout);
fflush(stdout);
}
sys_setchsr(alsamm_inchannels, alsamm_outchannels, alsamm_sr, sys_dacblocksize);
@@ -228,12 +228,11 @@ int alsamm_open_audio(int rate) {
}
void alsamm_close_audio() {
- int i;
if(debug&&sys_verbose) post("closing devices");
alsamm_stop();
- for(i=0;i< alsa_noutdev;i++) {
+ for (int i=0;i< alsa_noutdev;i++) {
//if(debug&&sys_verbose) post("unlink audio out %d, of %lx",i,used_outdevice[i]);
- if(alsa_outdev[i].a_synced != 0){
+ if(alsa_outdev[i].a_synced != 0) {
CHK(snd_pcm_unlink(alsa_outdev[i].a_handle));
alsa_outdev[i].a_synced = 0;
}
@@ -241,7 +240,7 @@ void alsamm_close_audio() {
if(alsa_outdev[i].a_addr) {free(alsa_outdev[i].a_addr); alsa_outdev[i].a_addr=0;}
alsa_outdev[i].a_channels = 0;
}
- for(i=0;i< alsa_nindev;i++) {
+ for (int i=0;i< alsa_nindev;i++) {
CHK(snd_pcm_close(alsa_indev[i].a_handle));
if(alsa_indev[i].a_addr) {free(alsa_indev[i].a_addr); alsa_indev[i].a_addr=0;}
alsa_indev[i].a_channels = 0;
@@ -258,7 +257,7 @@ static int set_hwparams(snd_pcm_t *handle, snd_pcm_hw_params_t *params,int *chs)
try {
#ifndef ALSAAPI9
unsigned int rrate;
- int err, dir;
+ int dir;
/* choose all parameters */
CHK(snd_pcm_hw_params_any(handle, params));
/* set the nointerleaved read/write format */
@@ -407,7 +406,7 @@ static int alsamm_get_channels(snd_pcm_t *dev, snd_pcm_uframes_t *avail, snd_pcm
int err = 0;
const snd_pcm_channel_area_t *mm_areas;
if (nchns > 0 && avail != NULL && offset != NULL) {
- if ((err = snd_pcm_mmap_begin(dev, &mm_areas, offset, avail)) < 0){
+ if ((err = snd_pcm_mmap_begin(dev, &mm_areas, offset, avail)) < 0) {
check_error(err,"setmems: begin_mmap failure ???");
return err;
}
@@ -420,23 +419,22 @@ static int alsamm_get_channels(snd_pcm_t *dev, snd_pcm_uframes_t *avail, snd_pcm
return -1;
}
-static int alsamm_start() {
+static void alsamm_start() {
int err = 0;
- int devno;
int chn;
/* first prepare for in/out */
- for(devno=0; devno<alsa_noutdev; devno++) {
+ for (int devno=0; devno<alsa_noutdev; devno++) {
snd_pcm_uframes_t offset, avail;
t_alsa_dev *dev = &alsa_outdev[devno];
/* snd_pcm_prepare also in xrun, but cannot harm here */
if ((err = snd_pcm_prepare (dev->a_handle)) < 0) {
- check_error (err,"outcard prepare error for playback");
- return err;
+ check_error(err,"outcard prepare error for playback");
+ return;
}
offset = 0;
avail = snd_pcm_avail_update(dev->a_handle);
if (avail != (snd_pcm_uframes_t) alsamm_buffer_size) {
- check_error (avail,"full buffer not available at start");
+ check_error(avail,"full buffer not available at start");
}
/* cleaning out mmap buffer before start */
if(debug&&sys_verbose) post("start: set mems for avail=%d,offset=%d at buffersize=%d",avail,offset,alsamm_buffer_size);
@@ -457,17 +455,17 @@ static int alsamm_start() {
if(debug&&sys_verbose) post("start: finish start, out with avail=%d, offset=%d",avail,offset);
/* we have no autostart so anyway start*/
if ((err = snd_pcm_start (dev->a_handle)) < 0) {
- check_error (err,"could not start playback");
+ check_error(err,"could not start playback");
}
}
- for(devno = 0;devno < alsa_nindev;devno++){
+ for (int devno = 0;devno < alsa_nindev;devno++) {
snd_pcm_uframes_t ioffset, iavail;
t_alsa_dev *dev = &alsa_indev[devno];
/* if devices are synced then dont need to prepare
hopefully dma in aereas allready filled correct by the card */
if(dev->a_synced == 0) {
if ((err = snd_pcm_prepare (dev->a_handle)) < 0) {
- check_error (err,"incard prepare error for capture");
+ check_error(err,"incard prepare error for capture");
/* return err;*/
}
}
@@ -490,32 +488,27 @@ static int alsamm_start() {
/* start with autostart , but anyway start */
if(dev->a_synced == 0) {
if ((err = snd_pcm_start (dev->a_handle)) < 0) {
- check_error (err,"could not start capture");
+ check_error(err,"could not start capture");
continue;
}
}
}
- return err;
}
-static int alsamm_stop() {
- int err = 0;
+static void alsamm_stop() {
/* first stop in... */
- for(int devno=0; devno<alsa_nindev; devno++) {
+ for (int devno=0; devno<alsa_nindev; devno++) {
t_alsa_dev *dev = &alsa_indev[devno];
if(sys_verbose) post("stop in device %d",devno);
- int err = snd_pcm_drop(dev->a_handle);
- if (err<0) check_error(err,"channel flush for capture failed");
+ CH(snd_pcm_drop(dev->a_handle));
}
/* then outs */
- for(int devno=0; devno<alsa_noutdev;devno++) {
+ for (int devno=0; devno<alsa_noutdev;devno++) {
t_alsa_dev *dev = &alsa_outdev[devno];
if(sys_verbose) post("stop out device %d",devno);
- int err = snd_pcm_drop(dev->a_handle);
- if (err<0) check_error(err,"channel flush for playback failed");
+ CH(snd_pcm_drop(dev->a_handle));
}
if (debug) show_availist();
- return err;
}
/* ---------- ADC/DAC tranfer in the main loop ------- */
@@ -555,7 +548,7 @@ int alsamm_send_dacs() {
post("dac send called in %d, out %d, xrun %d",inchannels,outchannels, alsamm_xruns);
if(alsamm_xruns && (alsamm_xruns % 1000) == 0)
post("1000 xruns accoured");
- if(dac_send < WATCH_PERIODS){
+ if(dac_send < WATCH_PERIODS) {
out_cm[dac_send] = -1;
in_avail[dac_send] = out_avail[dac_send] = -1;
in_offset[dac_send] = out_offset[dac_send] = -1;
@@ -570,7 +563,7 @@ int alsamm_send_dacs() {
the first of the first card. */
/* OUTPUT Transfer */
fpo = sys_soundout;
- for(devno = 0;devno < alsa_noutdev;devno++){
+ for(devno = 0;devno < alsa_noutdev;devno++) {
t_alsa_dev *dev = &alsa_outdev[devno];
snd_pcm_t *out = dev->a_handle;
int ochannels =dev->a_channels;
@@ -605,7 +598,7 @@ int alsamm_send_dacs() {
}
oavail = snd_pcm_avail_update(out);
}
- if(debug && dac_send < WATCH_PERIODS){
+ if(debug && dac_send < WATCH_PERIODS) {
out_avail[dac_send] = oavail;
}
/* we only transfer transfersize of bytes request,
@@ -623,7 +616,7 @@ int alsamm_send_dacs() {
snd_pcm_sframes_t oframes;
oframes = size;
err = alsamm_get_channels(out, (unsigned long *)&oframes, (unsigned long *)&ooffset,ochannels,dev->a_addr);
- if(debug && dac_send < WATCH_PERIODS){
+ if(debug && dac_send < WATCH_PERIODS) {
out_offset[dac_send] = ooffset;
outaddr[dac_send] = (char *) dev->a_addr[0];
}
@@ -658,7 +651,7 @@ int alsamm_send_dacs() {
fpo += ochannels*sys_dacblocksize;
}/* for devno */
fpi = sys_soundin; /* star first card first channel */
- for(devno = 0;devno < alsa_nindev;devno++){
+ for(devno = 0;devno < alsa_nindev;devno++) {
t_alsa_dev *dev = &alsa_indev[devno];
snd_pcm_t *in = dev->a_handle;
int ichannels = dev->a_channels;
@@ -699,13 +692,13 @@ int alsamm_send_dacs() {
int chn;
snd_pcm_sframes_t iframes = size;
err = alsamm_get_channels(in, (unsigned long *)&iframes, (unsigned long *)&ioffset,ichannels,dev->a_addr);
- if (err < 0){
+ if (err < 0) {
if ((err = xrun_recovery(in, err)) < 0) {
check_error(err,"MMAP begins avail error");
return SENDDACS_NO;
}
}
- if(debug && dac_send < WATCH_PERIODS){
+ if(debug && dac_send < WATCH_PERIODS) {
in_avail[dac_send] = iavail;
in_offset[dac_send] = ioffset;
inaddr[dac_send] = dev->a_addr[0];
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-02 05:26:54 +0000