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