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/* 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 <osmocom/gapk/logging.h>
#include <osmocom/gapk/codecs.h>
#include <osmocom/gapk/formats.h>
#include <osmocom/gapk/procqueue.h>
static int
pq_cb_fmt_convert(void *_state, uint8_t *out, const uint8_t *in, unsigned int in_len)
{
osmo_gapk_fmt_conv_cb_t f = _state;
return f(out, in, in_len);
}
/*! Add format conversion to processing queue
* \param pq Processing Queue to add conversion to
* \param[in] fmt Format description for conversion
* \param[in] to_from_n convert to (0) or from (1) specified format */
int
osmo_gapk_pq_queue_fmt_convert(struct osmo_gapk_pq *pq, const struct osmo_gapk_format_desc *fmt, int to_from_n)
{
const struct osmo_gapk_codec_desc *codec;
struct osmo_gapk_pq_item *item;
codec = osmo_gapk_codec_get_from_type(fmt->codec_type);
if (!codec) {
LOGPGAPK(LOGL_ERROR, "Cannot determine codec from "
"format %s\n", fmt->name);
return -EINVAL;
}
item = osmo_gapk_pq_add_item(pq);
if (!item)
return -ENOMEM;
if (to_from_n) {
LOGPGAPK(LOGL_DEBUG, "PQ: Adding conversion from canon "
"to %s (for codec %s)\n", fmt->name, codec->name);
item->len_in = codec->canon_frame_len;
item->len_out = fmt->frame_len;
item->state = fmt->conv_from_canon;
} else {
LOGPGAPK(LOGL_DEBUG, "PQ: Adding conversion from %s "
"to canon (for codec %s)\n", fmt->name, codec->name);
item->len_in = fmt->frame_len;
item->len_out = codec->canon_frame_len;
item->state = fmt->conv_to_canon;
}
item->type = OSMO_GAPK_ITEM_TYPE_PROC;
item->proc = pq_cb_fmt_convert;
item->wait = NULL;
/* Meta information */
item->cat_name = "format";
item->sub_name = fmt->name;
return 0;
}
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