mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-10-29 05:40:25 -04:00
Merged pcmplug branch.
This commit is contained in:
Jaroslav Kysela
parent
40d1ee071d
commit
6962a9d6ce
61 changed files with 7172 additions and 6743 deletions
258
include/pcm.h
258
include/pcm.h
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@ -98,18 +98,42 @@ static inline size_t bitset_count(bitset_t *bitset, size_t nbits)
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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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typedef enum { SND_PCM_TYPE_HW, SND_PCM_TYPE_PLUG, SND_PCM_TYPE_MULTI, SND_PCM_TYPE_CLIENT } snd_pcm_type_t;
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typedef enum {
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SND_PCM_TYPE_HW,
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SND_PCM_TYPE_MULTI,
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SND_PCM_TYPE_FILE,
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SND_PCM_TYPE_NULL,
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SND_PCM_TYPE_CLIENT,
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SND_PCM_TYPE_LINEAR,
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SND_PCM_TYPE_ALAW,
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SND_PCM_TYPE_MULAW,
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SND_PCM_TYPE_ADPCM,
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SND_PCM_TYPE_RATE,
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SND_PCM_TYPE_ROUTE,
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SND_PCM_TYPE_COPY,
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SND_PCM_TYPE_PLUG,
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SND_PCM_TYPE_DROUTE,
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SND_PCM_TYPE_LBSERVER,
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} snd_pcm_type_t;
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int snd_pcm_open(snd_pcm_t **handle, char *name,
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int stream, int mode);
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/* Obsolete functions */
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int snd_pcm_hw_open_subdevice(snd_pcm_t **handle, int card, int device, int subdevice, int stream, int mode);
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int snd_pcm_hw_open(snd_pcm_t **handle, int card, int device, int stream, int mode);
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int snd_pcm_hw_open_device(snd_pcm_t **handle, int card, int device, int stream, int mode);
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int snd_pcm_plug_open_subdevice(snd_pcm_t **handle, int card, int device, int subdevice, int stream, int mode);
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int snd_pcm_plug_open_device(snd_pcm_t **handle, int card, int device, int stream, int mode);
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#define snd_pcm_write snd_pcm_writei
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#define snd_pcm_read snd_pcm_readi
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ssize_t snd_pcm_writev(snd_pcm_t *handle, const struct iovec *vector, int count);
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ssize_t snd_pcm_readv(snd_pcm_t *handle, const struct iovec *vector, int count);
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snd_pcm_type_t snd_pcm_type(snd_pcm_t *handle);
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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_poll_descriptor(snd_pcm_t *handle);
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int snd_pcm_nonblock(snd_pcm_t *handle, int nonblock);
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int snd_pcm_info(snd_pcm_t *handle, snd_pcm_info_t *info);
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int snd_pcm_params_info(snd_pcm_t *handle, snd_pcm_params_info_t *info);
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@ -120,65 +144,55 @@ int snd_pcm_channel_params(snd_pcm_t *handle, snd_pcm_channel_params_t *params);
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int snd_pcm_channel_setup(snd_pcm_t *handle, snd_pcm_channel_setup_t *setup);
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int snd_pcm_status(snd_pcm_t *handle, snd_pcm_status_t *status);
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int snd_pcm_prepare(snd_pcm_t *handle);
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int snd_pcm_go(snd_pcm_t *handle);
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int snd_pcm_drain(snd_pcm_t *handle);
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int snd_pcm_start(snd_pcm_t *handle);
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int snd_pcm_stop(snd_pcm_t *handle);
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int snd_pcm_flush(snd_pcm_t *handle);
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int snd_pcm_pause(snd_pcm_t *handle, int enable);
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int snd_pcm_state(snd_pcm_t *handle);
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ssize_t snd_pcm_hw_ptr(snd_pcm_t *handle, int update);
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int snd_pcm_delay(snd_pcm_t *handle, ssize_t *delayp);
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size_t snd_pcm_hw_ptr(snd_pcm_t *handle);
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ssize_t snd_pcm_appl_ptr(snd_pcm_t *handle, off_t offset);
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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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ssize_t snd_pcm_writev(snd_pcm_t *handle, const struct iovec *vector, unsigned long count);
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ssize_t snd_pcm_readv(snd_pcm_t *handle, const struct iovec *vector, unsigned long count);
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ssize_t snd_pcm_writei(snd_pcm_t *handle, const void *buffer, size_t size);
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ssize_t snd_pcm_readi(snd_pcm_t *handle, void *buffer, size_t size);
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ssize_t snd_pcm_writen(snd_pcm_t *handle, void **bufs, size_t size);
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ssize_t snd_pcm_readn(snd_pcm_t *handle, void **bufs, size_t size);
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int snd_pcm_dump_setup(snd_pcm_t *handle, FILE *fp);
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int snd_pcm_dump(snd_pcm_t *handle, FILE *fp);
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int snd_pcm_dump_status(snd_pcm_status_t *status, FILE *fp);
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int snd_pcm_link(snd_pcm_t *handle1, snd_pcm_t *handle2);
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int snd_pcm_unlink(snd_pcm_t *handle);
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int snd_pcm_channels_mask(snd_pcm_t *handle, bitset_t *client_vmask);
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int snd_pcm_channels_mask(snd_pcm_t *handle, bitset_t *cmask);
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int snd_pcm_wait(snd_pcm_t *pcm, int timeout);
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ssize_t snd_pcm_avail_update(snd_pcm_t *pcm);
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/* mmap */
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int snd_pcm_mmap(snd_pcm_t *handle, snd_pcm_mmap_status_t **status, snd_pcm_mmap_control_t **control, void **buffer);
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int snd_pcm_mmap(snd_pcm_t *handle, void **buffer);
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int snd_pcm_munmap(snd_pcm_t *handle);
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int snd_pcm_mmap_state(snd_pcm_t *handle);
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ssize_t snd_pcm_mmap_hw_ptr(snd_pcm_t *handle);
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ssize_t snd_pcm_mmap_appl_ptr(snd_pcm_t *handle, off_t offset);
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int snd_pcm_mmap_status(snd_pcm_t *handle, snd_pcm_mmap_status_t **status);
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int snd_pcm_mmap_control(snd_pcm_t *handle, snd_pcm_mmap_control_t **control);
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int snd_pcm_mmap_data(snd_pcm_t *handle, void **buffer);
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int snd_pcm_munmap_status(snd_pcm_t *handle);
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int snd_pcm_munmap_control(snd_pcm_t *handle);
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int snd_pcm_munmap_data(snd_pcm_t *handle);
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int snd_pcm_mmap_ready(snd_pcm_t *handle);
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ssize_t snd_pcm_mmap_write(snd_pcm_t *handle, const void *buffer, size_t size);
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ssize_t snd_pcm_mmap_read(snd_pcm_t *handle, void *buffer, size_t size);
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ssize_t snd_pcm_mmap_writev(snd_pcm_t *handle, const struct iovec *vector, unsigned long count);
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ssize_t snd_pcm_mmap_readv(snd_pcm_t *handle, const struct iovec *vector, unsigned long count);
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int snd_pcm_mmap_avail(snd_pcm_t *handle, ssize_t *frames);
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ssize_t snd_pcm_mmap_xfer(snd_pcm_t *handle, size_t frames);
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ssize_t snd_pcm_mmap_offset(snd_pcm_t *handle);
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ssize_t snd_pcm_mmap_write_areas(snd_pcm_t *handle, snd_pcm_channel_area_t *channels, size_t frames);
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ssize_t snd_pcm_mmap_write_frames(snd_pcm_t *handle, const void *buffer, size_t frames);
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ssize_t snd_pcm_mmap_read_areas(snd_pcm_t *handle, snd_pcm_channel_area_t *channels, size_t frames);
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ssize_t snd_pcm_mmap_read_frames(snd_pcm_t *handle, const void *buffer, size_t frames);
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int snd_pcm_mmap_get_areas(snd_pcm_t *handle, snd_pcm_channel_area_t *areas);
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ssize_t snd_pcm_mmap_forward(snd_pcm_t *pcm, size_t size);
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size_t snd_pcm_mmap_offset(snd_pcm_t *pcm);
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size_t snd_pcm_mmap_xfer(snd_pcm_t *pcm, size_t size);
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ssize_t snd_pcm_mmap_writei(snd_pcm_t *handle, const void *buffer, size_t size);
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ssize_t snd_pcm_mmap_readi(snd_pcm_t *handle, void *buffer, size_t size);
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ssize_t snd_pcm_mmap_writen(snd_pcm_t *handle, void **bufs, size_t size);
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ssize_t snd_pcm_mmap_readn(snd_pcm_t *handle, void **bufs, size_t size);
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const char *snd_pcm_format_name(int format);
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const char *snd_pcm_format_description(int format);
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int snd_pcm_format_value(const char* name);
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int snd_pcm_area_silence(const snd_pcm_channel_area_t *dst_channel, size_t dst_offset,
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int snd_pcm_area_silence(snd_pcm_channel_area_t *dst_channel, size_t dst_offset,
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size_t samples, int format);
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int snd_pcm_areas_silence(const snd_pcm_channel_area_t *dst_channels, size_t dst_offset,
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int snd_pcm_areas_silence(snd_pcm_channel_area_t *dst_channels, size_t dst_offset,
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size_t vcount, size_t frames, int format);
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int snd_pcm_area_copy(const snd_pcm_channel_area_t *src_channel, size_t src_offset,
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const snd_pcm_channel_area_t *dst_channel, size_t dst_offset,
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int snd_pcm_area_copy(snd_pcm_channel_area_t *src_channel, size_t src_offset,
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snd_pcm_channel_area_t *dst_channel, size_t dst_offset,
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size_t samples, int format);
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int snd_pcm_areas_copy(const snd_pcm_channel_area_t *src_channels, size_t src_offset,
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const snd_pcm_channel_area_t *dst_channels, size_t dst_offset,
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size_t vcount, size_t frames, int format);
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int snd_pcm_areas_copy(snd_pcm_channel_area_t *src_channels, size_t src_offset,
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snd_pcm_channel_area_t *dst_channels, size_t dst_offset,
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size_t channels, size_t frames, int format);
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ssize_t snd_pcm_bytes_to_frames(snd_pcm_t *pcm, ssize_t bytes);
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ssize_t snd_pcm_frames_to_bytes(snd_pcm_t *pcm, ssize_t frames);
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@ -207,165 +221,3 @@ ssize_t snd_pcm_format_set_silence(int format, void *buf, size_t count);
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}
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#endif
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/*
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* PCM Plug-In interface
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct snd_stru_pcm_plugin snd_pcm_plugin_t;
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#define snd_pcm_plug_t struct snd_pcm_plug
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typedef enum {
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INIT = 0,
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PREPARE = 1,
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DRAIN = 2,
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FLUSH = 3,
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PAUSE = 4,
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} snd_pcm_plugin_action_t;
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typedef struct snd_stru_pcm_plugin_channel {
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snd_pcm_channel_area_t area;
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unsigned int enabled:1; /* channel need to be processed */
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unsigned int wanted:1; /* channel is wanted */
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} snd_pcm_plugin_channel_t;
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struct snd_stru_pcm_plugin {
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char *name; /* plug-in name */
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int stream;
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snd_pcm_format_t src_format; /* source format */
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snd_pcm_format_t dst_format; /* destination format */
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int src_width; /* sample width in bits */
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int dst_width; /* sample width in bits */
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ssize_t (*src_frames)(snd_pcm_plugin_t *plugin, size_t dst_frames);
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ssize_t (*dst_frames)(snd_pcm_plugin_t *plugin, size_t src_frames);
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ssize_t (*client_channels)(snd_pcm_plugin_t *plugin,
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size_t frames,
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snd_pcm_plugin_channel_t **channels);
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int (*src_channels_mask)(snd_pcm_plugin_t *plugin,
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bitset_t *dst_vmask,
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bitset_t **src_vmask);
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int (*dst_channels_mask)(snd_pcm_plugin_t *plugin,
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bitset_t *src_vmask,
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bitset_t **dst_vmask);
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ssize_t (*transfer)(snd_pcm_plugin_t *plugin,
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const snd_pcm_plugin_channel_t *src_channels,
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snd_pcm_plugin_channel_t *dst_channels,
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size_t frames);
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int (*action)(snd_pcm_plugin_t *plugin,
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snd_pcm_plugin_action_t action,
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unsigned long data);
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int (*parameter_set)(snd_pcm_plugin_t *plugin,
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const char *name,
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unsigned long value);
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int (*parameter_get)(snd_pcm_plugin_t *plugin,
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const char *name,
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unsigned long *value);
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void (*dump)(snd_pcm_plugin_t *plugin, FILE *fp);
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snd_pcm_plugin_t *prev;
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snd_pcm_plugin_t *next;
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snd_pcm_plug_t *plug;
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void *private_data;
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void (*private_free)(snd_pcm_plugin_t *plugin);
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char *buf;
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size_t buf_frames;
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snd_pcm_plugin_channel_t *buf_channels;
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bitset_t *src_vmask;
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bitset_t *dst_vmask;
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char extra_data[0];
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};
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int snd_pcm_plug_create(snd_pcm_t **handle, snd_pcm_t *slave, int close_slave);
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int snd_pcm_plug_open_subdevice(snd_pcm_t **handle, int card, int device, int subdevice, int stream, int mode);
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int snd_pcm_plug_open(snd_pcm_t **handle, int card, int device, int stream, int mode);
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int snd_pcm_plugin_free(snd_pcm_plugin_t *plugin);
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int snd_pcm_plugin_insert(snd_pcm_plugin_t *plugin);
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int snd_pcm_plugin_append(snd_pcm_plugin_t *plugin);
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void snd_pcm_plugin_dump(snd_pcm_plugin_t *plugin, FILE *fp);
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int snd_pcm_plug_alloc(snd_pcm_plug_t *plug, size_t frames);
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int snd_pcm_plug_clear(snd_pcm_plug_t *plug);
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snd_pcm_plugin_t *snd_pcm_plug_first(snd_pcm_plug_t *plug);
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snd_pcm_plugin_t *snd_pcm_plug_last(snd_pcm_plug_t *plug);
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int snd_pcm_plug_direct(snd_pcm_plug_t *plug);
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ssize_t snd_pcm_plug_client_size(snd_pcm_plug_t *plug, size_t drv_frames);
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ssize_t snd_pcm_plug_slave_size(snd_pcm_plug_t *plug, size_t clt_frames);
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/*
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* Plug-In constructors
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*/
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int snd_pcm_plugin_build(snd_pcm_plug_t *plug,
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const char *name,
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snd_pcm_format_t *src_format,
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snd_pcm_format_t *dst_format,
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size_t extra,
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snd_pcm_plugin_t **ret);
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/* basic I/O */
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int snd_pcm_plugin_build_io(snd_pcm_plug_t *plug,
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snd_pcm_format_t *format,
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snd_pcm_plugin_t **r_plugin);
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int snd_pcm_plugin_build_mmap(snd_pcm_plug_t *plug,
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snd_pcm_format_t *format,
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snd_pcm_plugin_t **r_plugin);
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#define ROUTE_PLUGIN_USE_FLOAT 1
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#if ROUTE_PLUGIN_USE_FLOAT
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#define FULL 1.0
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#define HALF 0.5
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typedef float route_ttable_entry_t;
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#else
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#define FULL ROUTE_PLUGIN_RESOLUTION
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#define HALF ROUTE_PLUGIN_RESOLUTION / 2
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typedef int route_ttable_entry_t;
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#endif
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/* conversion plugins */
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int snd_pcm_plugin_build_interleave(snd_pcm_plug_t *plug,
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snd_pcm_format_t *src_format,
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snd_pcm_format_t *dst_format,
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snd_pcm_plugin_t **r_plugin);
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int snd_pcm_plugin_build_linear(snd_pcm_plug_t *plug,
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snd_pcm_format_t *src_format,
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snd_pcm_format_t *dst_format,
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snd_pcm_plugin_t **r_plugin);
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int snd_pcm_plugin_build_mulaw(snd_pcm_plug_t *plug,
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snd_pcm_format_t *src_format,
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snd_pcm_format_t *dst_format,
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snd_pcm_plugin_t **r_plugin);
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int snd_pcm_plugin_build_alaw(snd_pcm_plug_t *plug,
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snd_pcm_format_t *src_format,
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snd_pcm_format_t *dst_format,
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snd_pcm_plugin_t **r_plugin);
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int snd_pcm_plugin_build_adpcm(snd_pcm_plug_t *plug,
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snd_pcm_format_t *src_format,
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snd_pcm_format_t *dst_format,
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snd_pcm_plugin_t **r_plugin);
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int snd_pcm_plugin_build_rate(snd_pcm_plug_t *plug,
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snd_pcm_format_t *src_format,
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snd_pcm_format_t *dst_format,
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snd_pcm_plugin_t **r_plugin);
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int snd_pcm_plugin_build_route(snd_pcm_plug_t *plug,
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snd_pcm_format_t *src_format,
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snd_pcm_format_t *dst_format,
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route_ttable_entry_t *ttable,
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snd_pcm_plugin_t **r_plugin);
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int snd_pcm_plugin_build_copy(snd_pcm_plug_t *plug,
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snd_pcm_format_t *src_format,
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snd_pcm_format_t *dst_format,
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snd_pcm_plugin_t **r_plugin);
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int snd_pcm_multi_create(snd_pcm_t **handlep, size_t slaves_count,
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snd_pcm_t **slaves_handle, size_t *slaves_channels_count,
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size_t binds_count, unsigned int *binds_client_channel,
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unsigned int *binds_slave, unsigned int *binds_slave_channel,
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int close_slaves);
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int snd_pcm_client_create(snd_pcm_t **handlep, char *host, int port, int transport, char *name, int stream, int mode);
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#ifdef __cplusplus
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}
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#endif
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