alsa-utils/axfer/container-raw.c

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// SPDX-License-Identifier: GPL-2.0
//
// container-raw.c - a parser/builder for a container with raw data frame.
//
// Copyright (c) 2018 Takashi Sakamoto <o-takashi@sakamocchi.jp>
//
// Licensed under the terms of the GNU General Public License, version 2.
#include "container.h"
#include "misc.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
static int raw_builder_pre_process(struct container_context *,
snd_pcm_format_t *,
unsigned int *,
unsigned int *,
uint64_t *byte_count)
{
*byte_count = UINT64_MAX;
return 0;
}
static int raw_parser_pre_process(struct container_context *cntr,
snd_pcm_format_t *,
unsigned int *,
unsigned int *,
uint64_t *byte_count)
{
struct stat buf = {0};
int err;
if (cntr->stdio) {
*byte_count = UINT64_MAX;
return 0;
}
err = fstat(cntr->fd, &buf);
if (err < 0)
return err;
*byte_count = buf.st_size;
if (*byte_count == 0)
*byte_count = UINT64_MAX;
return 0;
}
const struct container_parser container_parser_raw = {
.format = CONTAINER_FORMAT_RAW,
.max_size = UINT64_MAX,
.ops = {
.pre_process = raw_parser_pre_process,
},
};
const struct container_builder container_builder_raw = {
.format = CONTAINER_FORMAT_RAW,
.max_size = UINT64_MAX,
.ops = {
.pre_process = raw_builder_pre_process,
},
};