mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-11-06 13:29:59 -05:00
ffdb04c3ea
Fixed the bug producing silent tones with some combinations of plugins. The internal buffer handling is now better (cleaner) integrated with snd_pcm_generic_*().
66 lines
3.5 KiB
C
66 lines
3.5 KiB
C
/*
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* PCM - Common generic plugin code
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* Copyright (c) 2004 by Jaroslav Kysela <perex@suse.cz>
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*
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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typedef struct {
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snd_pcm_t *slave;
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int close_slave;
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} snd_pcm_generic_t;
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int snd_pcm_generic_close(snd_pcm_t *pcm);
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int snd_pcm_generic_nonblock(snd_pcm_t *pcm, int nonblock);
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int snd_pcm_generic_async(snd_pcm_t *pcm, int sig, pid_t pid);
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int snd_pcm_generic_poll_descriptors_count(snd_pcm_t *pcm);
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int snd_pcm_generic_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space);
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int snd_pcm_generic_poll_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents);
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int snd_pcm_generic_info(snd_pcm_t *pcm, snd_pcm_info_t * info);
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int snd_pcm_generic_hw_free(snd_pcm_t *pcm);
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int snd_pcm_generic_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t *params);
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int snd_pcm_generic_hw_refine(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
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int snd_pcm_generic_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
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int snd_pcm_generic_channel_info(snd_pcm_t *pcm, snd_pcm_channel_info_t * info);
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int snd_pcm_generic_channel_info_no_buffer(snd_pcm_t *pcm, snd_pcm_channel_info_t * info);
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int snd_pcm_generic_status(snd_pcm_t *pcm, snd_pcm_status_t * status);
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snd_pcm_state_t snd_pcm_generic_state(snd_pcm_t *pcm);
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int snd_pcm_generic_prepare(snd_pcm_t *pcm);
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int snd_pcm_generic_hwsync(snd_pcm_t *pcm);
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int snd_pcm_generic_reset(snd_pcm_t *pcm);
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int snd_pcm_generic_start(snd_pcm_t *pcm);
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int snd_pcm_generic_drop(snd_pcm_t *pcm);
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int snd_pcm_generic_drain(snd_pcm_t *pcm);
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int snd_pcm_generic_pause(snd_pcm_t *pcm, int enable);
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int snd_pcm_generic_resume(snd_pcm_t *pcm);
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int snd_pcm_generic_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp);
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snd_pcm_sframes_t snd_pcm_generic_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
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snd_pcm_sframes_t snd_pcm_generic_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
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int snd_pcm_generic_link_fd(snd_pcm_t *pcm, int *fds, int count, int (**failed)(snd_pcm_t *, int));
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int snd_pcm_generic_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2);
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int snd_pcm_generic_link2(snd_pcm_t *pcm1, snd_pcm_t *pcm2);
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int snd_pcm_generic_unlink(snd_pcm_t *pcm);
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snd_pcm_sframes_t snd_pcm_generic_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size);
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snd_pcm_sframes_t snd_pcm_generic_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
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snd_pcm_sframes_t snd_pcm_generic_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size);
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snd_pcm_sframes_t snd_pcm_generic_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
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snd_pcm_sframes_t snd_pcm_generic_mmap_commit(snd_pcm_t *pcm,
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snd_pcm_uframes_t offset,
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snd_pcm_uframes_t size);
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snd_pcm_sframes_t snd_pcm_generic_avail_update(snd_pcm_t *pcm);
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int snd_pcm_generic_mmap(snd_pcm_t *pcm);
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int snd_pcm_generic_munmap(snd_pcm_t *pcm);
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