mirror of
https://github.com/alsa-project/alsa-utils
synced 2024-09-19 17:49:59 +02:00
f5776e232c
In aplay, some options are available to stop data transmission by frame unit. This commit adds support for the options below: * --duration (-d) * For duration seconds. The number of data frames transferred in this * runtime is calculated by this value and sampling rate. * --samples (-s) * For the number of data frames to handle in this runtime. An original aplay has a similar option; '--max-file-time'. This option is used for capture data transmission to switch file to write data frame up to maximum number of frames which container format supports, instead of terminating. However, this may brings complicated file handling to this program. To reduce maintaining cost, this option is obsoleted. Additionally, a handler for SIGUSR1 Unix signal has similar feature to switch the file. For the same reason, the handler is also obsoleted. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
//
|
|
// xfer.h - a header for receiver/transmiter of data frames.
|
|
//
|
|
// Copyright (c) 2018 Takashi Sakamoto <o-takashi@sakamocchi.jp>
|
|
//
|
|
// Licensed under the terms of the GNU General Public License, version 2.
|
|
|
|
#ifndef __ALSA_UTILS_AXFER_XFER__H_
|
|
#define __ALSA_UTILS_AXFER_XFER__H_
|
|
|
|
#include "mapper.h"
|
|
|
|
#include <getopt.h>
|
|
|
|
enum xfer_type {
|
|
XFER_TYPE_UNSUPPORTED = -1,
|
|
XFER_TYPE_LIBASOUND = 0,
|
|
XFER_TYPE_COUNT,
|
|
};
|
|
|
|
struct xfer_ops;
|
|
|
|
struct xfer_context {
|
|
snd_pcm_stream_t direction;
|
|
enum xfer_type type;
|
|
const struct xfer_ops *ops;
|
|
void *private_data;
|
|
|
|
char *sample_format_literal;
|
|
char *cntr_format_literal;
|
|
unsigned int verbose;
|
|
unsigned int duration_seconds;
|
|
unsigned int duration_frames;
|
|
unsigned int frames_per_second;
|
|
unsigned int samples_per_frame;
|
|
bool help:1;
|
|
bool quiet:1;
|
|
bool dump_hw_params:1;
|
|
bool multiple_cntrs:1; // For mapper.
|
|
|
|
snd_pcm_format_t sample_format;
|
|
|
|
// For containers.
|
|
char **paths;
|
|
unsigned int path_count;
|
|
enum container_format cntr_format;
|
|
};
|
|
|
|
enum xfer_type xfer_type_from_label(const char *label);
|
|
|
|
int xfer_context_init(struct xfer_context *xfer, enum xfer_type type,
|
|
snd_pcm_stream_t direction, int argc, char *const *argv);
|
|
void xfer_context_destroy(struct xfer_context *xfer);
|
|
int xfer_context_pre_process(struct xfer_context *xfer,
|
|
snd_pcm_format_t *format,
|
|
unsigned int *samples_per_frame,
|
|
unsigned int *frames_per_second,
|
|
snd_pcm_access_t *access,
|
|
snd_pcm_uframes_t *frames_per_buffer);
|
|
int xfer_context_process_frames(struct xfer_context *xfer,
|
|
struct mapper_context *mapper,
|
|
struct container_context *cntrs,
|
|
unsigned int *frame_count);
|
|
void xfer_context_pause(struct xfer_context *xfer, bool enable);
|
|
void xfer_context_post_process(struct xfer_context *xfer);
|
|
|
|
struct xfer_data;
|
|
int xfer_options_parse_args(struct xfer_context *xfer,
|
|
const struct xfer_data *data, int argc,
|
|
char *const *argv);
|
|
int xfer_options_fixup_paths(struct xfer_context *xfer);
|
|
void xfer_options_calculate_duration(struct xfer_context *xfer,
|
|
uint64_t *total_frame_count);
|
|
|
|
// For internal use in 'xfer' module.
|
|
|
|
struct xfer_ops {
|
|
int (*init)(struct xfer_context *xfer, snd_pcm_stream_t direction);
|
|
int (*parse_opt)(struct xfer_context *xfer, int key, const char *optarg);
|
|
int (*validate_opts)(struct xfer_context *xfer);
|
|
int (*pre_process)(struct xfer_context *xfer, snd_pcm_format_t *format,
|
|
unsigned int *samples_per_frame,
|
|
unsigned int *frames_per_second,
|
|
snd_pcm_access_t *access,
|
|
snd_pcm_uframes_t *frames_per_buffer);
|
|
int (*process_frames)(struct xfer_context *xfer,
|
|
unsigned int *frame_count,
|
|
struct mapper_context *mapper,
|
|
struct container_context *cntrs);
|
|
void (*post_process)(struct xfer_context *xfer);
|
|
void (*destroy)(struct xfer_context *xfer);
|
|
void (*pause)(struct xfer_context *xfer, bool enable);
|
|
};
|
|
|
|
struct xfer_data {
|
|
const char *s_opts;
|
|
const struct option *l_opts;
|
|
unsigned int l_opts_count;
|
|
struct xfer_ops ops;
|
|
unsigned int private_size;
|
|
};
|
|
|
|
extern const struct xfer_data xfer_libasound;
|
|
|
|
#endif
|