mirror of https://gerrit.osmocom.org/gapk
89 lines
2.4 KiB
C
89 lines
2.4 KiB
C
/* ECU (Error Concealment Unit) */
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/*
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* This file is part of GAPK (GSM Audio Pocket Knife).
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*
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* (C) 2018 by Vadim Yanitskiy <axilirator@gmail.com>
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*
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* All Rights Reserved
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*
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* GAPK is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GAPK is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GAPK. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <talloc.h>
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#include <errno.h>
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#include <osmocom/gapk/procqueue.h>
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#include <osmocom/gapk/logging.h>
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#include <osmocom/gapk/formats.h>
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#include <osmocom/gapk/codecs.h>
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#include <osmocom/codec/ecu.h>
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static void
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clean_up(void *state)
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{
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talloc_free(state);
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}
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/*! Add a ECU block to the processing queue
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* (To be placed between frame source and decoder)
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* \param pq Processing Queue to which the block is added
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* \returns 0 on success; negative on error */
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int
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osmo_gapk_pq_queue_ecu(struct osmo_gapk_pq *pq,
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const struct osmo_gapk_codec_desc *codec)
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{
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const struct osmo_gapk_format_desc *fmt;
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struct osmo_gapk_pq_item *item;
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/* Make sure that a codec has corresponding ECU implementation */
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if (codec->ecu_proc == NULL) {
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LOGPGAPK(LOGL_ERROR, "Codec '%s' has no ECU implementation\n", codec->name);
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return -ENOTSUP;
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}
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/* Allocate a new item to the processing queue */
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item = osmo_gapk_pq_add_item(pq);
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if (!item)
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return -ENOMEM;
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/* Allocate the ECU state */
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item->state = talloc_zero(item, struct osmo_ecu_fr_state);
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if (!item->state) {
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talloc_free(item);
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return -ENOMEM;
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}
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/* I/O signature shall match the input signature of a codec */
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fmt = osmo_gapk_fmt_get_from_type(codec->codec_dec_format_type);
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item->len_in = fmt->frame_len;
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item->len_out = fmt->frame_len;
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item->proc = codec->ecu_proc;
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item->exit = &clean_up;
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item->wait = NULL;
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/* Meta information */
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item->type = OSMO_GAPK_ITEM_TYPE_PROC;
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item->cat_name = "ecu";
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item->sub_name = codec->name;
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LOGPGAPK(LOGL_DEBUG, "PQ '%s': Adding ECU for codec '%s', "
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"format '%s'\n", pq->name, codec->name, fmt->name);
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return 0;
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}
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