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/* ECU (Error Concealment Unit) */
/*
* This file is part of GAPK (GSM Audio Pocket Knife).
*
* (C) 2018 by Vadim Yanitskiy <axilirator@gmail.com>
*
* All Rights Reserved
*
* 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 <stdint.h>
#include <talloc.h>
#include <errno.h>
#include <osmocom/gapk/procqueue.h>
#include <osmocom/gapk/logging.h>
#include <osmocom/gapk/formats.h>
#include <osmocom/gapk/codecs.h>
#include <osmocom/codec/ecu.h>
static void
clean_up(void *state)
{
talloc_free(state);
}
/*! Add a ECU block to the processing queue
* (To be placed between frame source and decoder)
* \param pq Processing Queue to which the block is added
* \returns 0 on success; negative on error */
int
osmo_gapk_pq_queue_ecu(struct osmo_gapk_pq *pq,
const struct osmo_gapk_codec_desc *codec)
{
const struct osmo_gapk_format_desc *fmt;
struct osmo_gapk_pq_item *item;
/* Make sure that a codec has corresponding ECU implementation */
if (codec->ecu_proc == NULL) {
LOGPGAPK(LOGL_ERROR, "Codec '%s' has no ECU implementation\n", codec->name);
return -ENOTSUP;
}
/* Allocate a new item to the processing queue */
item = osmo_gapk_pq_add_item(pq);
if (!item)
return -ENOMEM;
/* Allocate the ECU state */
item->state = talloc_zero(item, struct osmo_ecu_fr_state);
if (!item->state) {
talloc_free(item);
return -ENOMEM;
}
/* I/O signature shall match the input signature of a codec */
fmt = osmo_gapk_fmt_get_from_type(codec->codec_dec_format_type);
item->len_in = fmt->frame_len;
item->len_out = fmt->frame_len;
item->proc = codec->ecu_proc;
item->exit = &clean_up;
item->wait = NULL;
/* Meta information */
item->type = OSMO_GAPK_ITEM_TYPE_PROC;
item->cat_name = "ecu";
item->sub_name = codec->name;
LOGPGAPK(LOGL_DEBUG, "PQ '%s': Adding ECU for codec '%s', "
"format '%s'\n", pq->name, codec->name, fmt->name);
return 0;
}
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