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2014-09-16 Fred Gleason <fredg@paravelsystems.com>

Browse Source 
* Fixed a bug in 'cae/cae_alsa.cpp' that caused induced noise
	when routing passthrough audio.
	* Reversed format detection order so as to prefer S32_LE format
	over S16_LE in 'cae/cae_alsa.cpp'.
This commit is contained in:
Fred Gleason
2014-09-16 15:52:08 -04:00
parent 638fd907ae
commit 0467b7f792
2 changed files with 128 additions and 134 deletions
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5
ChangeLog
View File

@@ -14461,3 +14461,8 @@
entries to appear in the list of available matrix output sources.
2014-09-13 Fred Gleason <fredg@paravelsystems.com>
* Incremented the package version to 2.9.2int00.
2014-09-16 Fred Gleason <fredg@paravelsystems.com>
* Fixed a bug in 'cae/cae_alsa.cpp' that caused induced noise
when routing passthrough audio.
* Reversed format detection order so as to prefer S32_LE format
over S16_LE in 'cae/cae_alsa.cpp'.

237
cae/cae_alsa.cpp
View File

@@ -68,7 +68,8 @@ void AlsaCapture2Callback(struct alsa_format *alsa_format)
{
char alsa_buffer[RINGBUFFER_SIZE];
int modulo;
short in_meter[RD_MAX_PORTS][2];
int16_t in_meter[RD_MAX_PORTS][2];
while(!alsa_format->exiting) {
int s=snd_pcm_readi(alsa_format->pcm,alsa_format->card_buffer,
@@ -91,35 +92,35 @@ void AlsaCapture2Callback(struct alsa_format *alsa_format)
switch(alsa_input_channels[alsa_format->card][i]) {
case 1:
for(int k=0;k<(2*s);k++) {
((short *)alsa_buffer)[k]=
(short)(alsa_input_volume[alsa_format->card][i]*
(double)(((short *)alsa_format->
((int16_t *)alsa_buffer)[k]=
(int16_t)(alsa_input_volume[alsa_format->card][i]*
(double)(((int16_t *)alsa_format->
card_buffer)
[modulo*k+2*i]))+
(short)(alsa_input_volume[alsa_format->card][i]*
(double)(((short *)alsa_format->
(int16_t)(alsa_input_volume[alsa_format->card][i]*
(double)(((int16_t *)alsa_format->
card_buffer)
[modulo*k+2*i+1]));
}
alsa_record_ring[alsa_format->card][i]->
write(alsa_buffer,s*sizeof(short));
write(alsa_buffer,s*sizeof(int16_t));
break;
case 2:
for(int k=0;k<s;k++) {
((short *)alsa_buffer)[2*k]=
(short)(alsa_input_volume[alsa_format->card][i]*
(double)(((short *)alsa_format->
((int16_t *)alsa_buffer)[2*k]=
(int16_t)(alsa_input_volume[alsa_format->card][i]*
(double)(((int16_t *)alsa_format->
card_buffer)
[modulo*k+2*i]));
((short *)alsa_buffer)[2*k+1]=
(short)(alsa_input_volume[alsa_format->card][i]*
(double)(((short *)alsa_format->
((int16_t *)alsa_buffer)[2*k+1]=
(int16_t)(alsa_input_volume[alsa_format->card][i]*
(double)(((int16_t *)alsa_format->
card_buffer)
[modulo*k+2*i+1]));
}
alsa_record_ring[alsa_format->card][i]->
write(alsa_buffer,s*2*sizeof(short));
write(alsa_buffer,s*2*sizeof(int16_t));
break;
}
}
@@ -132,19 +133,14 @@ void AlsaCapture2Callback(struct alsa_format *alsa_format)
for(unsigned i=0;i<alsa_format->channels;i+=2) {
for(unsigned j=0;j<2;j++) {
for(int k=0;k<s;k++) {
((short *)alsa_format->passthrough_buffer)[2*k+j]=
((short *)alsa_format->
card_buffer)[alsa_format->channels*k+2*i+j];
((int16_t *)alsa_format->passthrough_buffer)[2*k+j]=
((int16_t *)alsa_format->
card_buffer)[alsa_format->channels*k+i+j];
}
}
if(alsa_passthrough_ring[alsa_format->card][i/2]==NULL) {
printf("RING ERROR Card=%d Port=%d\n",alsa_format->card,i/2);
}
else {
alsa_passthrough_ring[alsa_format->card][i/2]->
write(alsa_format->passthrough_buffer,4*s);
}
}
//
// Process Input Meters
@@ -153,11 +149,11 @@ void AlsaCapture2Callback(struct alsa_format *alsa_format)
for(unsigned j=0;j<2;j++) {
in_meter[i/2][j]=0;
for(int k=0;k<s;k++) {
if(((short *)alsa_format->
if(((int16_t *)alsa_format->
card_buffer)[alsa_format->channels*k+2*i+j]>
in_meter[i][j]) {
in_meter[i][j]=
((short *)alsa_format->
((int16_t *)alsa_format->
card_buffer)[alsa_format->channels*k+2*i+j];
}
}
@@ -175,33 +171,33 @@ void AlsaCapture2Callback(struct alsa_format *alsa_format)
switch(alsa_input_channels[alsa_format->card][i]) {
case 1:
for(int k=0;k<(2*s);k++) {
((short *)alsa_buffer)[k]=
(short)(alsa_input_volume[alsa_format->card][i]*
(double)(((short *)alsa_format->
((int16_t *)alsa_buffer)[k]=
(int16_t)(alsa_input_volume[alsa_format->card][i]*
(double)(((int16_t *)alsa_format->
card_buffer)
[modulo*k+4*i+1]))+
(short)(alsa_input_volume[alsa_format->card][i]*
(double)(((short *)alsa_format->
(int16_t)(alsa_input_volume[alsa_format->card][i]*
(double)(((int16_t *)alsa_format->
card_buffer)
[modulo*k+4*i+3]));
}
alsa_record_ring[alsa_format->card][i]->
write(alsa_buffer,s*sizeof(short));
write(alsa_buffer,s*sizeof(int16_t));
break;
case 2:
for(int k=0;k<s;k++) {
((short *)alsa_buffer)[2*k]=
(short)(alsa_input_volume[alsa_format->card][i]*
(double)(((short *)alsa_format->card_buffer)
((int16_t *)alsa_buffer)[2*k]=
(int16_t)(alsa_input_volume[alsa_format->card][i]*
(double)(((int16_t *)alsa_format->card_buffer)
[modulo*k+4*i+1]));
((short *)alsa_buffer)[2*k+1]=
(short)(alsa_input_volume[alsa_format->card][i]*
(double)(((short *)alsa_format->card_buffer)
((int16_t *)alsa_buffer)[2*k+1]=
(int16_t)(alsa_input_volume[alsa_format->card][i]*
(double)(((int16_t *)alsa_format->card_buffer)
[modulo*k+4*i+3]));
}
alsa_record_ring[alsa_format->card][i]->
write(alsa_buffer,s*2*sizeof(short));
write(alsa_buffer,s*2*sizeof(int16_t));
break;
}
}
@@ -214,13 +210,13 @@ void AlsaCapture2Callback(struct alsa_format *alsa_format)
for(unsigned i=0;i<alsa_format->channels;i+=2) {
for(unsigned j=0;j<2;j++) {
for(int k=0;k<s;k++) {
((short *)alsa_format->passthrough_buffer)[2*k+j]=
((short *)alsa_format->
card_buffer)[alsa_format->channels*2*k+2*i+1+2*j];
((int32_t *)alsa_format->passthrough_buffer)[2*k+j]=
((int32_t *)alsa_format->
card_buffer)[alsa_format->channels*k+i+j];
}
}
alsa_passthrough_ring[alsa_format->card][i/2]->
write(alsa_format->passthrough_buffer,4*s);
write(alsa_format->passthrough_buffer,8*s);
}
//
@@ -230,11 +226,11 @@ void AlsaCapture2Callback(struct alsa_format *alsa_format)
for(unsigned j=0;j<2;j++) {
in_meter[i/2][j]=0;
for(int k=0;k<s;k++) {
if(((short *)alsa_format->
if(((int16_t *)alsa_format->
card_buffer)[alsa_format->channels*2*k+2*i+1+2*j]>
in_meter[i/2][j]) {
in_meter[i/2][j]=
((short *)alsa_format->
((int16_t *)alsa_format->
card_buffer)[alsa_format->channels*2*k+2*i+1+2*j];
}
}
@@ -283,8 +279,8 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
int p;
char alsa_buffer[RINGBUFFER_SIZE];
int modulo;
short out_meter[RD_MAX_PORTS][2];
short stream_out_meter=0;
int16_t out_meter[RD_MAX_PORTS][2];
int16_t stream_out_meter=0;
while(!alsa_format->exiting) {
memset(alsa_format->card_buffer,0,alsa_format->card_buffer_size);
@@ -298,11 +294,11 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
n=alsa_play_ring[alsa_format->card][j]->
read(alsa_buffer,alsa_format->
buffer_size/alsa_format->periods)/
(2*sizeof(short));
(2*sizeof(int16_t));
stream_out_meter=0; // Stream Output Meters
for(int k=0;k<n;k++) {
if(abs(((short *)alsa_buffer)[k])>stream_out_meter) {
stream_out_meter=abs(((short *)alsa_buffer)[k]);
if(abs(((int16_t *)alsa_buffer)[k])>stream_out_meter) {
stream_out_meter=abs(((int16_t *)alsa_buffer)[k]);
}
}
alsa_stream_output_meter[alsa_format->card][j][0]->
@@ -313,12 +309,12 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
for(unsigned i=0;i<(alsa_format->channels/2);i++) {
if(alsa_output_volume[alsa_format->card][i][j]!=0.0) {
for(int k=0;k<(2*n);k++) {
((short *)alsa_format->card_buffer)[modulo*k+2*i]+=
(short)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((short *)alsa_buffer)[k]));
((short *)alsa_format->card_buffer)[modulo*k+2*i+1]+=
(short)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((short *)alsa_buffer)[k]));
((int16_t *)alsa_format->card_buffer)[modulo*k+2*i]+=
(int16_t)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((int16_t *)alsa_buffer)[k]));
((int16_t *)alsa_format->card_buffer)[modulo*k+2*i+1]+=
(int16_t)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((int16_t *)alsa_buffer)[k]));
}
}
}
@@ -328,12 +324,12 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
case 2:
n=alsa_play_ring[alsa_format->card][j]->
read(alsa_buffer,alsa_format->buffer_size*2/
alsa_format->periods)/(2*sizeof(short));
alsa_format->periods)/(2*sizeof(int16_t));
for(unsigned k=0;k<2;k++) { // Stream Output Meters
stream_out_meter=0;
for(int l=0;l<n;l+=2) {
if(abs(((short *)alsa_buffer)[l+k])>stream_out_meter) {
stream_out_meter=abs(((short *)alsa_buffer)[l+k]);
if(abs(((int16_t *)alsa_buffer)[l+k])>stream_out_meter) {
stream_out_meter=abs(((int16_t *)alsa_buffer)[l+k]);
}
}
alsa_stream_output_meter[alsa_format->card][j][k]->
@@ -343,12 +339,12 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
for(unsigned i=0;i<(alsa_format->channels/2);i++) {
if(alsa_output_volume[alsa_format->card][i][j]!=0.0) {
for(int k=0;k<n;k++) {
((short *)alsa_format->card_buffer)[modulo*k+2*i]+=
(short)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((short *)alsa_buffer)[2*k]));
((short *)alsa_format->card_buffer)[modulo*k+2*i+1]+=
(short)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((short *)alsa_buffer)[2*k+1]));
((int16_t *)alsa_format->card_buffer)[modulo*k+2*i]+=
(int16_t)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((int16_t *)alsa_buffer)[2*k]));
((int16_t *)alsa_format->card_buffer)[modulo*k+2*i+1]+=
(int16_t)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((int16_t *)alsa_buffer)[2*k+1]));
}
}
}
@@ -369,19 +365,17 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
p=alsa_passthrough_ring[alsa_format->card][i/2]->
read(alsa_format->passthrough_buffer,4*n)/4;
for(unsigned j=0;j<alsa_format->channels;j+=2) {
if(alsa_passthrough_volume[alsa_format->card][i/2][j/2]>0.0) {
for(unsigned k=0;k<2;k++) {
for(int l=0;l<p;l++) {
((short *)alsa_format->
card_buffer)[alsa_format->channels*l+4*j+1+k]+=(short)
((double)((short *)alsa_format->
passthrough_buffer)[2*l+1]*
((int16_t *)alsa_format->
card_buffer)[alsa_format->channels*l+j+k]+=
(int16_t)((double)((int16_t *)
alsa_format->passthrough_buffer)[2*l+k]*
alsa_passthrough_volume[alsa_format->card][i/2][j/2]);
}
}
}
}
}
//
// Process Output Meters
@@ -391,11 +385,11 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
for(unsigned j=0;j<2;j++) {
out_meter[port][j]=0;
for(unsigned k=0;k<alsa_format->buffer_size;k++) {
if(((short *)alsa_format->
if(((int16_t *)alsa_format->
card_buffer)[alsa_format->channels*k+2*i+j]>
out_meter[i][j]) {
out_meter[i][j]=
((short *)alsa_format->
((int16_t *)alsa_format->
card_buffer)[alsa_format->channels*k+2*i+j];
}
}
@@ -412,11 +406,11 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
case 1:
n=alsa_play_ring[alsa_format->card][j]->
read(alsa_buffer,alsa_format->buffer_size/
alsa_format->periods)/(2*sizeof(short));
alsa_format->periods)/(2*sizeof(int16_t));
stream_out_meter=0;
for(int k=0;k<n;k++) { // Stream Output Meters
if(abs(((short *)alsa_buffer)[k])>stream_out_meter) {
stream_out_meter=abs(((short *)alsa_buffer)[k]);
if(abs(((int16_t *)alsa_buffer)[k])>stream_out_meter) {
stream_out_meter=abs(((int16_t *)alsa_buffer)[k]);
}
}
alsa_stream_output_meter[alsa_format->card][j][0]->
@@ -427,12 +421,12 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
for(unsigned i=0;i<(alsa_format->channels/2);i++) {
if(alsa_output_volume[alsa_format->card][i][j]!=0.0) {
for(int k=0;k<(2*n);k++) {
((short *)alsa_format->card_buffer)[modulo*k+4*i+1]+=
(short)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((short *)alsa_buffer)[k]));
((short *)alsa_format->card_buffer)[modulo*k+4*i+3]+=
(short)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((short *)alsa_buffer)[k]));
((int16_t *)alsa_format->card_buffer)[modulo*k+4*i+1]+=
(int16_t)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((int16_t *)alsa_buffer)[k]));
((int16_t *)alsa_format->card_buffer)[modulo*k+4*i+3]+=
(int16_t)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((int16_t *)alsa_buffer)[k]));
}
}
}
@@ -442,12 +436,12 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
case 2:
n=alsa_play_ring[alsa_format->card][j]->
read(alsa_buffer,alsa_format->buffer_size*2/
alsa_format->periods)/(2*sizeof(short));
alsa_format->periods)/(2*sizeof(int16_t));
for(unsigned k=0;k<2;k++) { // Stream Output Meters
stream_out_meter=0;
for(int l=0;l<n;l+=2) {
if(abs(((short *)alsa_buffer)[l+k])>stream_out_meter) {
stream_out_meter=abs(((short *)alsa_buffer)[l+k]);
if(abs(((int16_t *)alsa_buffer)[l+k])>stream_out_meter) {
stream_out_meter=abs(((int16_t *)alsa_buffer)[l+k]);
}
}
alsa_stream_output_meter[alsa_format->card][j][k]->
@@ -457,12 +451,12 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
for(unsigned i=0;i<(alsa_format->channels/2);i++) {
if(alsa_output_volume[alsa_format->card][i][j]!=0.0) {
for(int k=0;k<n;k++) {
((short *)alsa_format->card_buffer)[modulo*k+4*i+1]+=
(short)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((short *)alsa_buffer)[2*k]));
((short *)alsa_format->card_buffer)[modulo*k+4*i+3]+=
(short)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((short *)alsa_buffer)[2*k+1]));
((int16_t *)alsa_format->card_buffer)[modulo*k+4*i+1]+=
(int16_t)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((int16_t *)alsa_buffer)[2*k]));
((int16_t *)alsa_format->card_buffer)[modulo*k+4*i+3]+=
(int16_t)(alsa_output_volume[alsa_format->card][i][j]*
(double)(((int16_t *)alsa_buffer)[2*k+1]));
}
}
}
@@ -474,7 +468,7 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
// Empty the ring buffer
while(alsa_play_ring[alsa_format->card][j]->
read(alsa_buffer,alsa_format->buffer_size*2/
alsa_format->periods)/(2*sizeof(short))>0);
alsa_format->periods)/(2*sizeof(int16_t))>0);
}
}
}
@@ -485,20 +479,15 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
//
for(unsigned i=0;i<alsa_format->capture_channels;i+=2) {
p=alsa_passthrough_ring[alsa_format->card][i/2]->
read(alsa_format->passthrough_buffer,4*n)/4;
read(alsa_format->passthrough_buffer,8*n)/8;
for(unsigned j=0;j<alsa_format->channels;j+=2) {
if(alsa_passthrough_volume[alsa_format->card][i/2][j/2]>0.0) {
for(unsigned k=0;k<2;k++) {
for(int l=0;l<p;l++) {
((short *)alsa_format->
card_buffer)[alsa_format->channels*2*l+4*j+1+2*k]+=
(short)((double)
((short *)alsa_format->passthrough_buffer)[2*l]*
((int32_t *)alsa_format->
card_buffer)[alsa_format->channels*l+j+k]+=
(int32_t)((double)((int32_t *)
alsa_format->passthrough_buffer)[2*l+k]*
alsa_passthrough_volume[alsa_format->card][i/2][j/2]);
((short *)alsa_format->
card_buffer)[alsa_format->channels*2*l+4*j+3+2*k]+=
((short *)alsa_format->passthrough_buffer)[2*l+1];
}
}
}
}
@@ -514,11 +503,11 @@ void AlsaPlay2Callback(struct alsa_format *alsa_format)
for(unsigned k=0;
k<(alsa_format->buffer_size*2/alsa_format->periods);
k++) {
if(((short *)alsa_format->
if(((int16_t *)alsa_format->
card_buffer)[alsa_format->channels*2*k+2*i+1+2*j]>
out_meter[port][j]) {
out_meter[port][j]=
((short *)alsa_format->
((int16_t *)alsa_format->
card_buffer)[alsa_format->channels*2*k+2*i+1+2*j];
}
}
@@ -628,7 +617,7 @@ void MainObject::alsaFadeTimerData(int cardstream)
#ifdef ALSA
int card=cardstream/RD_MAX_STREAMS;
int stream=cardstream-card*RD_MAX_STREAMS;
short level;
int16_t level;
if(alsa_fade_up[card][stream]) {
level=alsa_output_volume_db[card][alsa_fade_port[card][stream]][stream]+
alsa_fade_increment[card][stream];
@@ -727,8 +716,8 @@ void MainObject::alsaInit(RDStation *station)
// Allocate Temporary Buffers
//
AlsaInitCallback();
alsa_wave_buffer=new short[RINGBUFFER_SIZE];
//alsa_resample_buffer=new short[2*RINGBUFFER_SIZE];
alsa_wave_buffer=new int16_t[RINGBUFFER_SIZE];
//alsa_resample_buffer=new int16_t[2*RINGBUFFER_SIZE];
//
// Start Up Interfaces
@@ -1275,7 +1264,7 @@ bool MainObject::alsaGetInputStatus(int card,int port)
}
bool MainObject::alsaGetInputMeters(int card,int port,short levels[2])
bool MainObject::alsaGetInputMeters(int card,int port,int16_t levels[2])
{
#ifdef ALSA
double meter;
@@ -1287,7 +1276,7 @@ bool MainObject::alsaGetInputMeters(int card,int port,short levels[2])
levels[i]=-10000;
}
else {
levels[i]=(short)(2000.0*log10(meter));
levels[i]=(int16_t)(2000.0*log10(meter));
if(levels[i]<-10000) {
levels[i]=-10000;
}
@@ -1300,7 +1289,7 @@ bool MainObject::alsaGetInputMeters(int card,int port,short levels[2])
}
bool MainObject::alsaGetOutputMeters(int card,int port,short levels[2])
bool MainObject::alsaGetOutputMeters(int card,int port,int16_t levels[2])
{
#ifdef ALSA
double meter;
@@ -1311,7 +1300,7 @@ bool MainObject::alsaGetOutputMeters(int card,int port,short levels[2])
levels[i]=-10000;
}
else {
levels[i]=(short)(2000.0*log10(meter));
levels[i]=(int16_t)(2000.0*log10(meter));
if(levels[i]<-10000) {
levels[i]=-10000;
}
@@ -1324,7 +1313,7 @@ bool MainObject::alsaGetOutputMeters(int card,int port,short levels[2])
}
bool MainObject::alsaGetStreamOutputMeters(int card,int stream,short levels[2])
bool MainObject::alsaGetStreamOutputMeters(int card,int stream,int16_t levels[2])
{
#ifdef ALSA
double meter;
@@ -1335,7 +1324,7 @@ bool MainObject::alsaGetStreamOutputMeters(int card,int stream,short levels[2])
levels[i]=-10000;
}
else {
levels[i]=(short)(2000.0*log10(meter));
levels[i]=(int16_t)(2000.0*log10(meter));
if(levels[i]<-10000) {
levels[i]=-10000;
}
@@ -1418,15 +1407,15 @@ bool MainObject::AlsaStartCaptureDevice(QString &dev,int card,snd_pcm_t *pcm)
//
// Sample Format
//
if(snd_pcm_hw_params_test_format(pcm,hwparams,SND_PCM_FORMAT_S16_LE)==0) {
alsa_capture_format[card].format=SND_PCM_FORMAT_S16_LE;
LogLine(RDConfig::LogDebug," Format = 16 bit little-endian");
}
else {
if(snd_pcm_hw_params_test_format(pcm,hwparams,SND_PCM_FORMAT_S32_LE)==0) {
alsa_capture_format[card].format=SND_PCM_FORMAT_S32_LE;
LogLine(RDConfig::LogDebug," Format = 32 bit little-endian");
}
else {
if(snd_pcm_hw_params_test_format(pcm,hwparams,SND_PCM_FORMAT_S16_LE)==0) {
alsa_capture_format[card].format=SND_PCM_FORMAT_S16_LE;
LogLine(RDConfig::LogDebug," Format = 16 bit little-endian");
}
else {
LogLine(RDConfig::LogErr,
" Neither 16 nor 32 bit little-endian formats available,");
@@ -1581,15 +1570,15 @@ bool MainObject::AlsaStartPlayDevice(QString &dev,int card,snd_pcm_t *pcm)
//
// Sample Format
//
if(snd_pcm_hw_params_test_format(pcm,hwparams,SND_PCM_FORMAT_S16_LE)==0) {
alsa_play_format[card].format=SND_PCM_FORMAT_S16_LE;
LogLine(RDConfig::LogDebug," Format = 16 bit little-endian");
}
else {
if(snd_pcm_hw_params_test_format(pcm,hwparams,SND_PCM_FORMAT_S32_LE)==0) {
alsa_play_format[card].format=SND_PCM_FORMAT_S32_LE;
LogLine(RDConfig::LogDebug," Format = 32 bit little-endian");
}
else {
if(snd_pcm_hw_params_test_format(pcm,hwparams,SND_PCM_FORMAT_S16_LE)==0) {
alsa_play_format[card].format=SND_PCM_FORMAT_S16_LE;
LogLine(RDConfig::LogDebug," Format = 16 bit little-endian");
}
else {
LogLine(RDConfig::LogErr,
" Neither 16 nor 32 bit little-endian formats available,");
@@ -1733,7 +1722,7 @@ void MainObject::EmptyAlsaInputStream(int card,int stream)
}
void MainObject::WriteAlsaBuffer(int card,int stream,short *buffer,unsigned len)
void MainObject::WriteAlsaBuffer(int card,int stream,int16_t *buffer,unsigned len)
{
ssize_t s;
unsigned char mpeg[2048];
@@ -1817,7 +1806,7 @@ void MainObject::FillAlsaOutputStream(int card,int stream)
for(int k=0;k<mad_synth[card][stream].pcm.channels;k++) {
alsa_wave_buffer[frame_offset+
j*mad_synth[card][stream].pcm.channels+k]=
(short)(32768.0*mad_f_todouble(mad_synth[card][stream].
(int16_t)(32768.0*mad_f_todouble(mad_synth[card][stream].
pcm.samples[k][j]));
}
}
@@ -1842,7 +1831,7 @@ void MainObject::FillAlsaOutputStream(int card,int stream)
for(int k=0;k<mad_synth[card][stream].pcm.channels;k++) {
alsa_wave_buffer[frame_offset+
j*mad_synth[card][stream].pcm.channels+k]=
(short)(32768.0*mad_f_todouble(mad_synth[card][stream].
(int16_t)(32768.0*mad_f_todouble(mad_synth[card][stream].
pcm.samples[k][j]));
}
}