mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-10-29 05:40:25 -04:00
Merged pcm2 branch.
This commit is contained in:
Jaroslav Kysela
parent
986c1500d2
commit
1cd6778173
40 changed files with 5053 additions and 3045 deletions
269
include/pcm.h
269
include/pcm.h
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@ -8,26 +8,97 @@
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#define SND_PCM_OPEN_PLAYBACK 0x0001
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#define SND_PCM_OPEN_CAPTURE 0x0002
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#define SND_PCM_OPEN_DUPLEX 0x0003
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#define SND_PCM_OPEN_NONBLOCK 0x1000
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#define SND_PCM_NONBLOCK_PLAYBACK 0x1000
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#define SND_PCM_NONBLOCK_CAPTURE 0x2000
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#define SND_PCM_NONBLOCK 0x3000
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef unsigned int bitset_t;
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static inline size_t bitset_size(int nbits)
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{
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return (nbits + sizeof(bitset_t) * 8 - 1) / (sizeof(bitset_t) * 8);
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}
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static inline bitset_t *bitset_alloc(int nbits)
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{
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return calloc(bitset_size(nbits), sizeof(bitset_t));
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}
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static inline void bitset_set(bitset_t *bitmap, unsigned int pos)
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{
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int bits = sizeof(*bitmap) * 8;
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bitmap[pos / bits] |= 1 << (pos % bits);
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}
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static inline void bitset_reset(bitset_t *bitmap, unsigned int pos)
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{
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int bits = sizeof(*bitmap) * 8;
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bitmap[pos / bits] &= ~(1 << (pos % bits));
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}
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static inline int bitset_get(bitset_t *bitmap, unsigned int pos)
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{
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int bits = sizeof(*bitmap) * 8;
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return !!(bitmap[pos / bits] & (1 << (pos % bits)));
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}
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static inline void bitset_copy(bitset_t *dst, bitset_t *src, unsigned int nbits)
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{
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memcpy(dst, src, bitset_size(nbits) * sizeof(bitset_t));
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}
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static inline void bitset_and(bitset_t *dst, bitset_t *bs, unsigned int nbits)
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{
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bitset_t *end = dst + bitset_size(nbits);
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while (dst < end)
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*dst++ &= *bs++;
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}
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static inline void bitset_or(bitset_t *dst, bitset_t *bs, unsigned int nbits)
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{
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bitset_t *end = dst + bitset_size(nbits);
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while (dst < end)
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*dst++ |= *bs++;
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}
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static inline void bitset_zero(bitset_t *dst, unsigned int nbits)
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{
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bitset_t *end = dst + bitset_size(nbits);
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while (dst < end)
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*dst++ = 0;
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}
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static inline void bitset_one(bitset_t *dst, unsigned int nbits)
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{
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bitset_t *end = dst + bitset_size(nbits);
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while (dst < end)
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*dst++ = -1;
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}
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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_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_open_subdevice(snd_pcm_t **handle, int card, int device, int subdevice, int mode);
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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_channel_close(snd_pcm_t *handle, int channel);
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int snd_pcm_file_descriptor(snd_pcm_t *handle, int channel);
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int snd_pcm_nonblock_mode(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_channel_info(snd_pcm_t *handle, snd_pcm_channel_info_t * info);
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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_voice_setup(snd_pcm_t *handle, int channel, snd_pcm_voice_setup_t * setup);
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int snd_pcm_channel_status(snd_pcm_t *handle, snd_pcm_channel_status_t * status);
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int snd_pcm_channel_nonblock(snd_pcm_t *handle, int channel, 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_channel_info(snd_pcm_t *handle, snd_pcm_channel_info_t *info);
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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_voice_setup(snd_pcm_t *handle, int channel, snd_pcm_voice_setup_t *setup);
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int snd_pcm_all_voices_setup(snd_pcm_t *handle, int channel, snd_pcm_voice_setup_t *setup);
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int snd_pcm_channel_status(snd_pcm_t *handle, snd_pcm_channel_status_t *status);
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int snd_pcm_playback_prepare(snd_pcm_t *handle);
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int snd_pcm_capture_prepare(snd_pcm_t *handle);
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int snd_pcm_channel_prepare(snd_pcm_t *handle, int channel);
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@ -36,17 +107,34 @@ int snd_pcm_capture_go(snd_pcm_t *handle);
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int snd_pcm_channel_go(snd_pcm_t *handle, int channel);
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int snd_pcm_sync_go(snd_pcm_t *handle, snd_pcm_sync_t *sync);
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int snd_pcm_playback_drain(snd_pcm_t *handle);
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int snd_pcm_channel_drain(snd_pcm_t *handle, int channel);
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int snd_pcm_playback_flush(snd_pcm_t *handle);
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int snd_pcm_capture_flush(snd_pcm_t *handle);
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int snd_pcm_channel_flush(snd_pcm_t *handle, int channel);
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int snd_pcm_playback_pause(snd_pcm_t *handle, int enable);
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int snd_pcm_channel_pause(snd_pcm_t *handle, int channel, int enable);
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ssize_t snd_pcm_transfer_size(snd_pcm_t *handle, int channel);
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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 *pcm, const struct iovec *vector, int count);
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ssize_t snd_pcm_readv(snd_pcm_t *pcm, const struct iovec *vector, int count);
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ssize_t snd_pcm_writev(snd_pcm_t *pcm, const struct iovec *vector, unsigned long count);
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ssize_t snd_pcm_readv(snd_pcm_t *pcm, const struct iovec *vector, unsigned long count);
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int snd_pcm_mmap(snd_pcm_t *handle, int channel, snd_pcm_mmap_control_t **control, void **buffer);
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int snd_pcm_munmap(snd_pcm_t *handle, int channel);
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int snd_pcm_mmap_control(snd_pcm_t *handle, int channel, snd_pcm_mmap_control_t **control);
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int snd_pcm_mmap_data(snd_pcm_t *handle, int channel, void **buffer);
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int snd_pcm_munmap_control(snd_pcm_t *handle, int channel);
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int snd_pcm_munmap_data(snd_pcm_t *handle, int channel);
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int snd_pcm_voices_mask(snd_pcm_t *pcm, int channel, bitset_t *client_vmask);
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int snd_pcm_mmap_frags_used(snd_pcm_t *pcm, int channel, ssize_t *frags);
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int snd_pcm_mmap_frags_free(snd_pcm_t *pcm, int channel, ssize_t *frags);
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int snd_pcm_mmap_bytes_used(snd_pcm_t *pcm, int channel, ssize_t *bytes);
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int snd_pcm_mmap_bytes_free(snd_pcm_t *pcm, int channel, ssize_t *bytes);
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int snd_pcm_mmap_ready(snd_pcm_t *pcm, int channel);
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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 *pcm, const struct iovec *vector, unsigned long count);
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ssize_t snd_pcm_mmap_readv(snd_pcm_t *pcm, const struct iovec *vector, unsigned long count);
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ssize_t snd_pcm_bytes_per_second(snd_pcm_t *pcm, int channel);
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/* misc */
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@ -59,7 +147,12 @@ int snd_pcm_format_width(int format); /* in bits */
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int snd_pcm_format_physical_width(int format); /* in bits */
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int snd_pcm_build_linear_format(int width, int unsignd, int big_endian);
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ssize_t snd_pcm_format_size(int format, size_t samples);
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unsigned char snd_pcm_format_silence(int format);
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ssize_t snd_pcm_format_bytes_per_second(snd_pcm_format_t *format);
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u_int8_t snd_pcm_format_silence(int format);
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u_int16_t snd_pcm_format_silence_16(int format);
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u_int32_t snd_pcm_format_silence_32(int format);
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u_int64_t snd_pcm_format_silence_64(int format);
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ssize_t snd_pcm_format_set_silence(int format, void *buf, size_t count);
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const char *snd_pcm_get_format_name(int format);
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#ifdef __cplusplus
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@ -82,6 +175,7 @@ typedef enum {
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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_voice {
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@ -89,25 +183,31 @@ typedef struct snd_stru_pcm_plugin_voice {
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void *addr; /* address to voice samples */
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unsigned int first; /* offset to first sample in bits */
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unsigned int step; /* samples distance in bits */
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unsigned int enabled:1; /* voice need to be processed */
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unsigned int wanted:1; /* voice is wanted */
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} snd_pcm_plugin_voice_t;
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struct snd_stru_pcm_plugin {
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char *name; /* plug-in name */
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int channel;
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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_samples)(snd_pcm_plugin_t *plugin, size_t dst_samples);
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ssize_t (*dst_samples)(snd_pcm_plugin_t *plugin, size_t src_samples);
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int (*src_voices)(snd_pcm_plugin_t *plugin,
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snd_pcm_plugin_voice_t **voices,
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size_t samples);
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int (*dst_voices)(snd_pcm_plugin_t *plugin,
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snd_pcm_plugin_voice_t **voices,
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size_t samples);
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int (*client_voices)(snd_pcm_plugin_t *plugin,
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size_t samples,
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snd_pcm_plugin_voice_t **voices);
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int (*src_voices_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_voices_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_voice_t *src_voices,
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const snd_pcm_plugin_voice_t *dst_voices,
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snd_pcm_plugin_voice_t *dst_voices,
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size_t samples);
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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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@ -123,49 +223,32 @@ struct snd_stru_pcm_plugin {
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snd_pcm_plugin_handle_t *handle;
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void *private_data;
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void (*private_free)(snd_pcm_plugin_t *plugin, void *private_data);
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snd_pcm_plugin_voice_t *voices;
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void *extra_data;
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snd_pcm_plugin_voice_t *src_voices;
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snd_pcm_plugin_voice_t *dst_voices;
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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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snd_pcm_plugin_t *snd_pcm_plugin_build(snd_pcm_plugin_handle_t *handle,
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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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int extra);
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int snd_pcm_plug_connect(snd_pcm_t **handle, snd_pcm_t *slave, int mode, int close_slave);
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int snd_pcm_plug_open_subdevice(snd_pcm_t **handle, int card, int device, int subdevice, int mode);
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int snd_pcm_plug_open(snd_pcm_t **handle, int card, int device, int mode);
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int snd_pcm_plugin_free(snd_pcm_plugin_t *plugin);
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int snd_pcm_plugin_clear(snd_pcm_t *handle, int channel);
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int snd_pcm_plugin_insert(snd_pcm_t *handle, int channel, snd_pcm_plugin_t *plugin);
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int snd_pcm_plugin_append(snd_pcm_t *handle, int channel, snd_pcm_plugin_t *plugin);
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int snd_pcm_plugin_remove_to(snd_pcm_t *handle, int channel, snd_pcm_plugin_t *plugin);
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int snd_pcm_plugin_remove_first(snd_pcm_t *handle, int channel);
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snd_pcm_plugin_t *snd_pcm_plugin_first(snd_pcm_t *handle, int channel);
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snd_pcm_plugin_t *snd_pcm_plugin_last(snd_pcm_t *handle, int channel);
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ssize_t snd_pcm_plugin_client_samples(snd_pcm_t *handle, int channel, size_t drv_samples);
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ssize_t snd_pcm_plugin_hardware_samples(snd_pcm_t *handle, int channel, size_t clt_samples);
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ssize_t snd_pcm_plugin_client_size(snd_pcm_t *handle, int channel, size_t drv_size);
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ssize_t snd_pcm_plugin_hardware_size(snd_pcm_t *handle, int channel, size_t clt_size);
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int snd_pcm_plugin_info(snd_pcm_t *handle, snd_pcm_channel_info_t *info);
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int snd_pcm_plugin_params(snd_pcm_t *handle, snd_pcm_channel_params_t *params);
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int snd_pcm_plugin_setup(snd_pcm_t *handle, snd_pcm_channel_setup_t *setup);
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int snd_pcm_plugin_voice_setup(snd_pcm_t *handle, int channel, snd_pcm_voice_setup_t * setup);
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int snd_pcm_plugin_status(snd_pcm_t *handle, snd_pcm_channel_status_t *status);
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int snd_pcm_plugin_prepare(snd_pcm_t *handle, int channel);
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int snd_pcm_plugin_playback_drain(snd_pcm_t *handle);
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int snd_pcm_plugin_flush(snd_pcm_t *handle, int channel);
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ssize_t snd_pcm_plugin_transfer_size(snd_pcm_t *handle, int channel);
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int snd_pcm_plugin_pointer(snd_pcm_t *pcm, int channel, void **ptr, size_t *size);
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ssize_t snd_pcm_plugin_write(snd_pcm_t *handle, const void *buffer, size_t size);
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ssize_t snd_pcm_plugin_read(snd_pcm_t *handle, void *bufer, size_t size);
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int snd_pcm_plugin_pointerv(snd_pcm_t *pcm, int channel, struct iovec **vector, int *count);
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ssize_t snd_pcm_plugin_writev(snd_pcm_t *pcm, const struct iovec *vector, int count);
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ssize_t snd_pcm_plugin_readv(snd_pcm_t *pcm, const struct iovec *vector, int count);
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ssize_t snd_pcm_plugin_write_continue(snd_pcm_t *pcm);
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int snd_pcm_plugin_mmap(snd_pcm_t *handle, int channel, snd_pcm_mmap_control_t **control, void **buffer);
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int snd_pcm_plugin_munmap(snd_pcm_t *handle, int channel);
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int snd_pcm_plugin_go(snd_pcm_t *handle, int channel);
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int snd_pcm_plugin_sync_go(snd_pcm_t *handle, snd_pcm_sync_t *sync);
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int snd_pcm_plugin_pause(snd_pcm_t *pcm, int enable);
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int snd_pcm_plugin_voice_setup(snd_pcm_t *pcm, int channel, snd_pcm_voice_setup_t *setup);
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int snd_pcm_plug_clear(snd_pcm_t *handle, int channel);
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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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#if 0
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int snd_pcm_plugin_remove_to(snd_pcm_plugin_t *plugin);
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int snd_pcm_plug_remove_first(snd_pcm_t *handle, int channel);
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#endif
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snd_pcm_plugin_t *snd_pcm_plug_first(snd_pcm_t *handle, int channel);
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snd_pcm_plugin_t *snd_pcm_plug_last(snd_pcm_t *handle, int channel);
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int snd_pcm_plug_direct(snd_pcm_t *pcm, int channel);
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ssize_t snd_pcm_plug_client_samples(snd_pcm_t *handle, int channel, size_t drv_samples);
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ssize_t snd_pcm_plug_slave_samples(snd_pcm_t *handle, int channel, size_t clt_samples);
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ssize_t snd_pcm_plug_client_size(snd_pcm_t *handle, int channel, size_t drv_size);
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ssize_t snd_pcm_plug_slave_size(snd_pcm_t *handle, int channel, size_t clt_size);
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/*
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* Plug-In helpers
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@ -175,91 +258,75 @@ ssize_t snd_pcm_plugin_src_samples_to_size(snd_pcm_plugin_t *plugin, size_t samp
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ssize_t snd_pcm_plugin_dst_samples_to_size(snd_pcm_plugin_t *plugin, size_t samples);
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ssize_t snd_pcm_plugin_src_size_to_samples(snd_pcm_plugin_t *plugin, size_t size);
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ssize_t snd_pcm_plugin_dst_size_to_samples(snd_pcm_plugin_t *plugin, size_t size);
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int snd_pcm_plugin_src_voices(snd_pcm_plugin_t *plugin,
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snd_pcm_plugin_voice_t **voices,
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size_t samples);
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int snd_pcm_plugin_dst_voices(snd_pcm_plugin_t *plugin,
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snd_pcm_plugin_voice_t **voices,
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size_t samples);
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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_plugin_handle_t *handle,
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int channel,
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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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int 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_stream(snd_pcm_plugin_handle_t *handle, int channel,
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int snd_pcm_plugin_build_stream(snd_pcm_plugin_handle_t *handle,
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int channel,
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snd_pcm_t *slave,
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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_block(snd_pcm_plugin_handle_t *handle, int channel,
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int snd_pcm_plugin_build_block(snd_pcm_plugin_handle_t *handle,
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int channel,
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snd_pcm_t *slave,
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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_plugin_handle_t *handle, int channel,
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int snd_pcm_plugin_build_mmap(snd_pcm_plugin_handle_t *handle,
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int channel,
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snd_pcm_t *slave,
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snd_pcm_format_t *format,
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snd_pcm_plugin_t **r_plugin);
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/* conversion plugins */
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int snd_pcm_plugin_build_interleave(snd_pcm_plugin_handle_t *handle,
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int channel,
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snd_pcm_format_t *src_format,
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snd_pcm_format_t *dst_format,
|
||||
snd_pcm_plugin_t **r_plugin);
|
||||
int snd_pcm_plugin_build_linear(snd_pcm_plugin_handle_t *handle,
|
||||
int channel,
|
||||
snd_pcm_format_t *src_format,
|
||||
snd_pcm_format_t *dst_format,
|
||||
snd_pcm_plugin_t **r_plugin);
|
||||
int snd_pcm_plugin_build_mulaw(snd_pcm_plugin_handle_t *handle,
|
||||
int channel,
|
||||
snd_pcm_format_t *src_format,
|
||||
snd_pcm_format_t *dst_format,
|
||||
snd_pcm_plugin_t **r_plugin);
|
||||
int snd_pcm_plugin_build_alaw(snd_pcm_plugin_handle_t *handle,
|
||||
int channel,
|
||||
snd_pcm_format_t *src_format,
|
||||
snd_pcm_format_t *dst_format,
|
||||
snd_pcm_plugin_t **r_plugin);
|
||||
int snd_pcm_plugin_build_adpcm(snd_pcm_plugin_handle_t *handle,
|
||||
int channel,
|
||||
snd_pcm_format_t *src_format,
|
||||
snd_pcm_format_t *dst_format,
|
||||
snd_pcm_plugin_t **r_plugin);
|
||||
int snd_pcm_plugin_build_rate(snd_pcm_plugin_handle_t *handle,
|
||||
int channel,
|
||||
snd_pcm_format_t *src_format,
|
||||
snd_pcm_format_t *dst_format,
|
||||
snd_pcm_plugin_t **r_plugin);
|
||||
int snd_pcm_plugin_build_route(snd_pcm_plugin_handle_t *handle,
|
||||
int channel,
|
||||
snd_pcm_format_t *src_format,
|
||||
snd_pcm_format_t *dst_format,
|
||||
float *ttable,
|
||||
snd_pcm_plugin_t **r_plugin);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Loopback interface
|
||||
*/
|
||||
|
||||
#define SND_PCM_LB_OPEN_PLAYBACK 0
|
||||
#define SND_PCM_LB_OPEN_CAPTURE 1
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
typedef struct snd_pcm_loopback_callbacks {
|
||||
void *private_data; /* should be used with an application */
|
||||
size_t max_buffer_size; /* zero = default (64kB) */
|
||||
void (*data) (void *private_data, char *buffer, size_t count);
|
||||
void (*position_change) (void *private_data, unsigned int pos);
|
||||
void (*format_change) (void *private_data, snd_pcm_format_t *format);
|
||||
void (*silence) (void *private_data, size_t count);
|
||||
void *reserved[31]; /* reserved for the future use - must be NULL!!! */
|
||||
} 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_close(snd_pcm_loopback_t *handle);
|
||||
int snd_pcm_loopback_file_descriptor(snd_pcm_loopback_t *handle);
|
||||
int snd_pcm_loopback_block_mode(snd_pcm_loopback_t *handle, int enable);
|
||||
int snd_pcm_loopback_stream_mode(snd_pcm_loopback_t *handle, int mode);
|
||||
int snd_pcm_loopback_format(snd_pcm_loopback_t *handle, snd_pcm_format_t * format);
|
||||
int snd_pcm_loopback_status(snd_pcm_loopback_t *handle, snd_pcm_loopback_status_t * status);
|
||||
ssize_t snd_pcm_loopback_read(snd_pcm_loopback_t *handle, snd_pcm_loopback_callbacks_t * callbacks);
|
||||
int snd_pcm_plugin_build_copy(snd_pcm_plugin_handle_t *handle,
|
||||
int channel,
|
||||
snd_pcm_format_t *format,
|
||||
snd_pcm_plugin_t **r_plugin);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue