| /* 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; |
| } |