mirror of https://gerrit.osmocom.org/gapk
90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/* Process Queue: Codec handling tasks */
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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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* 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 <errno.h>
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#include <stdint.h>
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#include <osmocom/gapk/logging.h>
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#include <osmocom/gapk/codecs.h>
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#include <osmocom/gapk/formats.h>
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#include <osmocom/gapk/procqueue.h>
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/*! Add a codecl to the processing queue
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* \param pq Processing Queue to which the codec is added
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* \param[in] codec description
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* \param[in] encode (1) or decode (0)
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* \returns 0 on success; negative on error */
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int
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osmo_gapk_pq_queue_codec(struct osmo_gapk_pq *pq, const struct osmo_gapk_codec_desc *codec, int enc_dec_n)
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{
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const struct osmo_gapk_codec_desc *codec_pcm;
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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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/* 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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/* initialize the codec, if there is an init function */
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if (codec->codec_init) {
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item->state = codec->codec_init();
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if (!item->state)
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return -EINVAL;
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}
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if (enc_dec_n) {
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codec_pcm = osmo_gapk_codec_get_from_type(CODEC_PCM);
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fmt = osmo_gapk_fmt_get_from_type(codec->codec_enc_format_type);
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if (!fmt)
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return -EINVAL;
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item->len_in = codec_pcm->canon_frame_len;
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item->len_out = fmt->frame_len;
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item->proc = codec->codec_encode;
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} else {
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codec_pcm = osmo_gapk_codec_get_from_type(CODEC_PCM);
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fmt = osmo_gapk_fmt_get_from_type(codec->codec_dec_format_type);
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if (!fmt)
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return -EINVAL;
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item->len_in = fmt->frame_len;
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item->len_out = codec_pcm->canon_frame_len;
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item->proc = codec->codec_decode;
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}
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item->type = OSMO_GAPK_ITEM_TYPE_PROC;
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item->exit = codec->codec_exit;
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item->wait = NULL;
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/* Meta information */
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item->cat_name = "codec";
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item->sub_name = codec->name;
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LOGPGAPK(LOGL_DEBUG, "PQ '%s': Adding codec %s, %s format %s\n",
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pq->name, codec->name, enc_dec_n ?
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"encoding to" : "decoding from", fmt->name);
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if (!item->proc)
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return -ENOTSUP;
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return 0;
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}
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