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https://github.com/alsa-project/alsa-lib.git
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19811bb9b4
the handle in use. This should be more type-safe as the compiler will perform checking on type now.
63 lines
2.7 KiB
C
63 lines
2.7 KiB
C
/****************************************************************************
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* *
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* pcm.h *
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* Digital Audio Interface *
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* *
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****************************************************************************/
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#define SND_PCM_OPEN_PLAYBACK (O_WRONLY)
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#define SND_PCM_OPEN_RECORD (O_RDONLY)
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#define SND_PCM_OPEN_DUPLEX (O_RDWR)
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct snd_pcm snd_pcm_t;
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typedef struct snd_pcm_loopback snd_pcm_loopback_t;
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int snd_pcm_open(snd_pcm_t **handle, int card, int device, int mode);
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int snd_pcm_close(snd_pcm_t *handle);
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int snd_pcm_file_descriptor(snd_pcm_t *handle);
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int snd_pcm_block_mode(snd_pcm_t *handle, int enable);
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int snd_pcm_info(snd_pcm_t *handle, snd_pcm_info_t * info);
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int snd_pcm_playback_info(snd_pcm_t *handle, snd_pcm_playback_info_t * info);
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int snd_pcm_record_info(snd_pcm_t *handle, snd_pcm_record_info_t * info);
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int snd_pcm_playback_format(snd_pcm_t *handle, snd_pcm_format_t * format);
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int snd_pcm_record_format(snd_pcm_t *handle, snd_pcm_format_t * format);
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int snd_pcm_playback_params(snd_pcm_t *handle, snd_pcm_playback_params_t * params);
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int snd_pcm_record_params(snd_pcm_t *handle, snd_pcm_record_params_t * params);
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int snd_pcm_playback_status(snd_pcm_t *handle, snd_pcm_playback_status_t * status);
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int snd_pcm_record_status(snd_pcm_t *handle, snd_pcm_record_status_t * status);
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int snd_pcm_drain_playback(snd_pcm_t *handle);
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int snd_pcm_flush_playback(snd_pcm_t *handle);
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int snd_pcm_flush_record(snd_pcm_t *handle);
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int snd_pcm_playback_pause(snd_pcm_t *handle, int enable);
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int snd_pcm_playback_time(snd_pcm_t *handle, int enable);
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int snd_pcm_record_time(snd_pcm_t *handle, int enable);
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ssize_t snd_pcm_write(snd_pcm_t *handle, const void *buffer, size_t size);
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ssize_t snd_pcm_read(snd_pcm_t *handle, void *buffer, size_t size);
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#ifdef __cplusplus
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}
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#endif
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#define SND_PCM_LB_OPEN_PLAYBACK 0
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#define SND_PCM_LB_OPEN_RECORD 1
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#ifdef __cplusplus
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extern "C" {
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#endif
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int snd_pcm_loopback_open(snd_pcm_loopback_t **handle, int card, int device, int mode);
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int snd_pcm_loopback_close(snd_pcm_loopback_t *handle);
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int snd_pcm_loopback_file_descriptor(snd_pcm_loopback_t *handle);
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int snd_pcm_loopback_block_mode(snd_pcm_loopback_t *handle, int enable);
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int snd_pcm_loopback_stream_mode(snd_pcm_loopback_t *handle, int mode);
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int snd_pcm_loopback_format(snd_pcm_loopback_t *handle, snd_pcm_format_t * format);
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ssize_t snd_pcm_loopback_read(snd_pcm_loopback_t *handle, void *buffer, size_t size);
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#ifdef __cplusplus
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}
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#endif
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