williamp/osmocom-analog
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prepare audio handling for multi carrier SDR

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This commit is contained in:
Andreas Eversberg
2017-01-03 12:31:59 +01:00
parent 713b1ab118
commit d54d3ac265
23 changed files with 131 additions and 176 deletions
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7
src/common/sender.h
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@@ -20,8 +20,8 @@ enum pilot_signal {
/* common structure of each transmitter */
typedef struct sender {
struct sender *next;
struct sender *slave; /* points to audio device slave member */
struct sender *master; /* points to audio device master source */
struct sender *slave; /* points to 'slave' that uses next channel of audio device */
struct sender *master; /* if set, the audio device is owned by 'master' */
/* system info */
int kanal; /* channel number */
@@ -30,7 +30,6 @@ typedef struct sender {
void *sound;
char sounddev[64]; /* sound device name */
int samplerate;
int cross_channels; /* swap right and left on IO */
samplerate_t srstate; /* sample rate conversion state */
double rx_gain; /* factor of level to apply on rx samples */
int pre_emphasis; /* use pre_emhasis, done by sender */
@@ -70,7 +69,7 @@ typedef struct sender {
extern sender_t *sender_head;
extern int cant_recover;
int sender_create(sender_t *sender, int kanal, const char *sounddev, int samplerate, int cross_channels, double rx_gain, int pre_emphasis, int de_emphasis, const char *write_rx_wave, const char *write_tx_wave, const char *read_rx_wave, int loopback, double loss_volume, enum pilot_signal pilot_signal);
int sender_create(sender_t *sender, int kanal, const char *sounddev, int samplerate, double rx_gain, int pre_emphasis, int de_emphasis, const char *write_rx_wave, const char *write_tx_wave, const char *read_rx_wave, int loopback, double loss_volume, enum pilot_signal pilot_signal);
void sender_destroy(sender_t *sender);
void process_sender_audio(sender_t *sender, int *quit, int latspl);
void sender_send(sender_t *sender, int16_t *samples, int count);