mirror of
https://github.com/alsa-project/alsa-utils
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0e3a1d9e0b
In aplay, '--test-nowait' is used to suppress calls of snd_pcm_wait() when I/O operations return -EAGAIN or process truncated number of data frames. This seems to be for debugging purpose. In this program, this option is equivalent to suppress event waiting. This commit adds support for this option. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// xfer-libasound.h - a header for receiver/transmitter of frames by alsa-lib.
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//
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// Copyright (c) 2018 Takashi Sakamoto <o-takashi@sakamocchi.jp>
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//
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// Licensed under the terms of the GNU General Public License, version 2.
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#ifndef __ALSA_UTILS_AXFER_XFER_LIBASOUND__H_
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#define __ALSA_UTILS_AXFER_XFER_LIBASOUND__H_
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#include "xfer.h"
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#define logging(state, ...) \
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snd_output_printf(state->log, __VA_ARGS__)
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struct xfer_libasound_ops;
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struct libasound_state {
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snd_pcm_t *handle;
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snd_output_t *log;
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snd_pcm_hw_params_t *hw_params;
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snd_pcm_sw_params_t *sw_params;
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const struct xfer_libasound_ops *ops;
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void *private_data;
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bool verbose;
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char *node_literal;
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bool finish_at_xrun:1;
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bool nonblock:1;
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bool mmap:1;
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bool test_nowait:1;
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bool use_waiter:1;
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};
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// For internal use in 'libasound' module.
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struct xfer_libasound_ops {
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int (*pre_process)(struct libasound_state *state);
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int (*process_frames)(struct libasound_state *state,
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unsigned int *frame_count,
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struct mapper_context *mapper,
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struct container_context *cntrs);
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void (*post_process)(struct libasound_state *state);
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unsigned int private_size;
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};
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extern const struct xfer_libasound_ops xfer_libasound_irq_rw_ops;
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extern const struct xfer_libasound_ops xfer_libasound_irq_mmap_r_ops;
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extern const struct xfer_libasound_ops xfer_libasound_irq_mmap_w_ops;
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#endif
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