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Loopback API improvement - added silence block.

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This commit is contained in:
Jaroslav Kysela 2000-02-18 18:12:50 +00:00
parent b77f3a40fd
commit b316062856
2 changed files with 6 additions and 1 deletions
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3
include/pcm.h
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@ -167,7 +167,8 @@ typedef struct snd_pcm_loopback_callbacks {
void (*data) (void *private_data, char *buffer, size_t count); void (*data) (void *private_data, char *buffer, size_t count);
void (*position_change) (void *private_data, unsigned int pos); void (*position_change) (void *private_data, unsigned int pos);
void (*format_change) (void *private_data, snd_pcm_format_t *format); void (*format_change) (void *private_data, snd_pcm_format_t *format);
char *reserved[32]; /* reserved for the future use - must be NULL!!! */ void (*silence) (void *private_data, size_t count);
void *reserved[31]; /* reserved for the future use - must be NULL!!! */
} snd_pcm_loopback_callbacks_t; } snd_pcm_loopback_callbacks_t;
int snd_pcm_loopback_open(snd_pcm_loopback_t **handle, int card, int device, int subdev, int mode); int snd_pcm_loopback_open(snd_pcm_loopback_t **handle, int card, int device, int subdev, int mode);

4
src/pcm/pcm_loopback.c
View file

@ -229,6 +229,10 @@ ssize_t snd_pcm_loopback_read(snd_pcm_loopback_t *lb, snd_pcm_loopback_callbacks
callbacks->position_change(callbacks->private_data, pos); callbacks->position_change(callbacks->private_data, pos);
} }
break; break;
case SND_PCM_LB_TYPE_SILENCE:
if (callbacks->silence)
callbacks->silence(callbacks->private_data, header.size);
break;
} }
} }
return result; return result;