pcm_plugin.h File Reference

Common PCM plugin code. More...

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Macros
#define	SND_PCM_PLUGIN_RATE_MIN   4000
#define	SND_PCM_PLUGIN_RATE_MAX   768000
#define	SND_PCM_PLUGIN_ROUTE_FLOAT   1
#define	SND_PCM_PLUGIN_ROUTE_RESOLUTION   16
#define	SND_PCM_PLUGIN_ROUTE_HALF   (SND_PCM_PLUGIN_ROUTE_RESOLUTION / 2)
#define	SND_PCM_PLUGIN_ROUTE_FULL   SND_PCM_PLUGIN_ROUTE_RESOLUTION

Typedefs
typedef int	snd_pcm_route_ttable_entry_t

Functions
int	snd_pcm_hw_open (snd_pcm_t **pcmp, const char *name, int card, int device, int subdevice, snd_pcm_stream_t stream, int mode, int mmap_emulation, int sync_ptr_ioctl)
	Creates a new hw PCM.
int	_snd_pcm_hw_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new hw PCM.
int	snd_pcm_copy_open (snd_pcm_t **pcmp, const char *name, snd_pcm_t *slave, int close_slave)
	Creates a new copy PCM.
int	_snd_pcm_copy_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new copy PCM.
int	snd_pcm_linear_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave)
	Creates a new linear conversion PCM.
int	_snd_pcm_linear_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new linear conversion PCM.
int	snd_pcm_lfloat_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave)
	Creates a new linear conversion PCM.
int	_snd_pcm_lfloat_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new linear<->float conversion PCM.
int	snd_pcm_mulaw_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave)
	Creates a new Mu-Law conversion PCM.
int	_snd_pcm_mulaw_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new Mu-Law conversion PCM.
int	snd_pcm_alaw_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave)
	Creates a new A-Law conversion PCM.
int	_snd_pcm_alaw_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new A-Law conversion PCM.
int	snd_pcm_adpcm_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave)
	Creates a new Ima-ADPCM conversion PCM.
int	_snd_pcm_adpcm_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new Ima-ADPCM conversion PCM.
int	snd_pcm_iec958_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave, const unsigned char *status_bits, const unsigned char *preamble_vals, int hdmi_mode)
	Creates a new IEC958 subframe conversion PCM.
int	_snd_pcm_iec958_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new IEC958 subframe conversion PCM.
int	snd_pcm_route_load_ttable (snd_config_t *tt, snd_pcm_route_ttable_entry_t *ttable, unsigned int tt_csize, unsigned int tt_ssize, unsigned int *tt_cused, unsigned int *tt_sused, int schannels)
	Load route matrix.
int	snd_pcm_route_determine_ttable (snd_config_t *tt, unsigned int *tt_csize, unsigned int *tt_ssize)
	Determine route matrix sizes.
int	snd_pcm_route_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, int schannels, snd_pcm_route_ttable_entry_t *ttable, unsigned int tt_ssize, unsigned int tt_cused, unsigned int tt_sused, snd_pcm_t *slave, int close_slave)
	Creates a new Route & Volume PCM.
int	_snd_pcm_route_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new Route & Volume PCM.
int	snd_pcm_rate_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, unsigned int srate, const snd_config_t *converter, snd_pcm_t *slave, int close_slave)
	Creates a new rate PCM.
int	_snd_pcm_rate_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new rate PCM.
int	snd_pcm_hooks_open (snd_pcm_t **pcmp, const char *name, snd_pcm_t *slave, int close_slave)
	Creates a new hooks PCM.
int	_snd_pcm_hooks_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new hooks PCM.
int	snd_pcm_ladspa_open (snd_pcm_t **pcmp, const char *name, const char *ladspa_path, unsigned int channels, snd_config_t *ladspa_pplugins, snd_config_t *ladspa_cplugins, snd_pcm_t *slave, int close_slave)
	Creates a new LADSPA<->ALSA Plugin.
int	_snd_pcm_ladspa_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new LADSPA<->ALSA PCM.
int	snd_pcm_jack_open (snd_pcm_t **pcmp, const char *name, snd_config_t *playback_conf, snd_config_t *capture_conf, snd_pcm_stream_t stream, int mode)
	Creates a new Jack PCM.
int	_snd_pcm_jack_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new Jack PCM (internal)

Detailed Description

Common PCM plugin code.

Author

Abramo Bagnara abram.nosp@m.o@al.nosp@m.sa-pr.nosp@m.ojec.nosp@m.t.org

Jaroslav Kysela perex.nosp@m.@per.nosp@m.ex.cz

Date

2000-2001

Application interface library for the ALSA driver. See the PCM (digital audio) plugins page for more details.

Warning

Using of contents of this header file might be dangerous in the sense of compatibility reasons. The contents might be freely changed in future.