gapk/src/pq_format.c

62 lines
1.5 KiB
C

/* Process Queue: Format handling tasks */
/*
* This file is part of gapk (GSM Audio Pocket Knife).
*
* gapk is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* gapk is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with gapk. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <stdint.h>
#include <gapk/codecs.h>
#include <gapk/formats.h>
#include <gapk/procqueue.h>
static int
pq_cb_fmt_convert(void *_state, uint8_t *out, const uint8_t *in)
{
fmt_conv_cb_t f = _state;
return f(out, in);
}
int
pq_queue_fmt_convert(struct pq *pq, const struct format_desc *fmt, int to_from_n)
{
struct pq_item *item;
const struct codec_desc *codec = codec_get_from_type(fmt->codec_type);
if (!codec)
return -EINVAL;
item = pq_add_item(pq);
if (!item)
return -ENOMEM;
if (to_from_n) {
item->len_in = codec->canon_frame_len;
item->len_out = fmt->frame_len;
item->state = fmt->conv_from_canon;
} else {
item->len_in = fmt->frame_len;
item->len_out = codec->canon_frame_len;
item->state = fmt->conv_to_canon;
}
item->proc = pq_cb_fmt_convert;
return 0;
}