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Merged pcm-v2 branch into main CVS tree.

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This commit is contained in:
Jaroslav Kysela 1999-11-06 23:47:07 +00:00
parent 4b8fda3997
commit 600dc6ae32
22 changed files with 11135 additions and 347 deletions
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102
include/pcm.h
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@ -5,9 +5,13 @@
* *
****************************************************************************/
#define SND_PCM_OPEN_PLAYBACK (O_WRONLY)
#define SND_PCM_OPEN_CAPTURE (O_RDONLY)
#define SND_PCM_OPEN_DUPLEX (O_RDWR)
#define SND_PCM_OPEN_PLAYBACK 0x0001
#define SND_PCM_OPEN_CAPTURE 0x0002
#define SND_PCM_OPEN_DUPLEX 0x0003
#define SND_PCM_OPEN_STREAM 0x1000
#define SND_PCM_OPEN_STREAM_PLAYBACK 0x1001
#define SND_PCM_OPEN_STREAM_CAPTURE 0x1002
#define SND_PCM_OPEN_STREAM_DUPLEX 0x1003
#ifdef __cplusplus
extern "C" {
@ -20,29 +24,99 @@ int snd_pcm_open(snd_pcm_t **handle, int card, int device, int mode);
int snd_pcm_open_subdevice(snd_pcm_t **handle, int card, int device, int subdevice, int mode);
int snd_pcm_close(snd_pcm_t *handle);
int snd_pcm_file_descriptor(snd_pcm_t *handle);
int snd_pcm_block_mode(snd_pcm_t *handle, int enable);
int snd_pcm_info(snd_pcm_t *handle, snd_pcm_info_t * info);
int snd_pcm_playback_info(snd_pcm_t *handle, snd_pcm_playback_info_t * info);
int snd_pcm_capture_info(snd_pcm_t *handle, snd_pcm_capture_info_t * info);
int snd_pcm_playback_format(snd_pcm_t *handle, snd_pcm_format_t * format);
int snd_pcm_capture_format(snd_pcm_t *handle, snd_pcm_format_t * format);
int snd_pcm_playback_params(snd_pcm_t *handle, snd_pcm_playback_params_t * params);
int snd_pcm_capture_params(snd_pcm_t *handle, snd_pcm_capture_params_t * params);
int snd_pcm_playback_status(snd_pcm_t *handle, snd_pcm_playback_status_t * status);
int snd_pcm_capture_status(snd_pcm_t *handle, snd_pcm_capture_status_t * status);
int snd_pcm_channel_info(snd_pcm_t *handle, snd_pcm_channel_info_t * info);
int snd_pcm_channel_params(snd_pcm_t *handle, snd_pcm_channel_params_t * params);
int snd_pcm_channel_setup(snd_pcm_t *handle, snd_pcm_channel_setup_t * setup);
int snd_pcm_channel_status(snd_pcm_t *handle, snd_pcm_channel_status_t * status);
int snd_pcm_playback_prepare(snd_pcm_t *handle);
int snd_pcm_capture_prepare(snd_pcm_t *handle);
int snd_pcm_channel_prepare(snd_pcm_t *handle, int channel);
int snd_pcm_playback_go(snd_pcm_t *handle);
int snd_pcm_capture_go(snd_pcm_t *handle);
int snd_pcm_channel_go(snd_pcm_t *handle, int channel);
int snd_pcm_sync_go(snd_pcm_t *handle, snd_pcm_sync_t *sync);
int snd_pcm_drain_playback(snd_pcm_t *handle);
int snd_pcm_flush_playback(snd_pcm_t *handle);
int snd_pcm_flush_capture(snd_pcm_t *handle);
int snd_pcm_flush_channel(snd_pcm_t *handle, int channel);
int snd_pcm_playback_pause(snd_pcm_t *handle, int enable);
int snd_pcm_playback_time(snd_pcm_t *handle, int enable);
int snd_pcm_capture_time(snd_pcm_t *handle, int enable);
ssize_t snd_pcm_transfer_size(snd_pcm_t *handle, int channel);
ssize_t snd_pcm_write(snd_pcm_t *handle, const void *buffer, size_t size);
ssize_t snd_pcm_read(snd_pcm_t *handle, void *buffer, size_t size);
int snd_pcm_mmap(snd_pcm_t *handle, int channel, snd_pcm_mmap_control_t **control, void **buffer);
int snd_pcm_munmap(snd_pcm_t *handle, int channel);
#ifdef __cplusplus
}
#endif
/*
* Plug-In interface (ala C++)
*/
typedef struct snd_stru_pcm_plugin snd_pcm_plugin_t;
typedef enum {
INIT = 0,
DRAIN = 1,
FLUSH = 2
} snd_pcm_plugin_action_t;
#define snd_pcm_plugin_extra_data(plugin) (((char *)plugin) + sizeof(*plugin))
struct snd_stru_pcm_plugin {
char *name; /* plug-in name */
int (*transfer_src_ptr)(snd_pcm_plugin_t *plugin, char **src_ptr, size_t *src_size);
ssize_t (*transfer)(snd_pcm_plugin_t *plugin,
char *src_ptr, size_t src_size,
char *dst_ptr, size_t dst_size);
ssize_t (*src_size)(snd_pcm_plugin_t *plugin, size_t dst_size);
ssize_t (*dst_size)(snd_pcm_plugin_t *plugin, size_t src_size);
int (*action)(snd_pcm_plugin_t *plugin, snd_pcm_plugin_action_t action);
snd_pcm_plugin_t *prev;
snd_pcm_plugin_t *next;
void *private_data;
void (*private_free)(snd_pcm_plugin_t *plugin, void *private_data);
};
snd_pcm_plugin_t *snd_pcm_plugin_build(const char *name, int extra);
int snd_pcm_plugin_free(snd_pcm_plugin_t *plugin);
int snd_pcm_plugin_clear(snd_pcm_t *handle, int channel);
int snd_pcm_plugin_insert(snd_pcm_t *handle, int channel, snd_pcm_plugin_t *plugin);
int snd_pcm_plugin_remove_to(snd_pcm_t *handle, int channel, snd_pcm_plugin_t *plugin);
int snd_pcm_plugin_remove_first(snd_pcm_t *handle, int channel);
snd_pcm_plugin_t *snd_pcm_plugin_first(snd_pcm_t *handle, int channel);
snd_pcm_plugin_t *snd_pcm_plugin_last(snd_pcm_t *handle, int channel);
ssize_t snd_pcm_plugin_transfer_size(snd_pcm_t *handle, int channel, size_t drv_size);
ssize_t snd_pcm_plugin_hardware_size(snd_pcm_t *handle, int channel, size_t trf_size);
int snd_pcm_plugin_info(snd_pcm_t *handle, snd_pcm_channel_info_t *info);
int snd_pcm_plugin_params(snd_pcm_t *handle, snd_pcm_channel_params_t *params);
int snd_pcm_plugin_setup(snd_pcm_t *handle, snd_pcm_channel_setup_t *setup);
int snd_pcm_plugin_status(snd_pcm_t *handle, snd_pcm_channel_status_t *status);
int snd_pcm_plugin_drain_playback(snd_pcm_t *handle);
int snd_pcm_plugin_flush(snd_pcm_t *handle, int channel);
int snd_pcm_plugin_pointer(snd_pcm_t *pcm, int channel, void **ptr, size_t *size);
ssize_t snd_pcm_plugin_write(snd_pcm_t *handle, const void *buffer, size_t size);
ssize_t snd_pcm_plugin_read(snd_pcm_t *handle, void *bufer, size_t size);
/*
* Plug-In constructors
*/
/* basic I/O */
int snd_pcm_plugin_build_stream(snd_pcm_t *handle, int channel, snd_pcm_plugin_t **r_plugin);
int snd_pcm_plugin_build_block(snd_pcm_t *handle, int channel, snd_pcm_plugin_t **r_plugin);
int snd_pcm_plugin_build_mmap(snd_pcm_t *handle, int channel, snd_pcm_plugin_t **r_plugin);
/* conversion plugins */
int snd_pcm_plugin_build_interleave(int src_interleave, int dst_interleave, int format, snd_pcm_plugin_t **r_plugin);
int snd_pcm_plugin_build_linear(int src_format, int dst_format, snd_pcm_plugin_t **r_plugin);
int snd_pcm_plugin_build_mulaw(int src_format, int dst_format, snd_pcm_plugin_t **r_plugin);
/*
* Loopback interface
*/
#define SND_PCM_LB_OPEN_PLAYBACK 0
#define SND_PCM_LB_OPEN_CAPTURE 1