| /* 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 <gapk/codecs.h> |
| #include <gapk/formats.h> |
| #include <gapk/procqueue.h> |
| |
| |
| static int |
| pq_cb_fmt_convert(void *_state, uint8_t *out, const uint8_t *in) |
| { |
| fmt_conv_cb_t f = _state; |
| return f(out, in); |
| } |
| |
| /*! 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 |
| pq_queue_fmt_convert(struct pq *pq, const struct format_desc *fmt, int to_from_n) |
| { |
| struct pq_item *item; |
| const struct codec_desc *codec = codec_get_from_type(fmt->codec_type); |
| |
| if (!codec) |
| return -EINVAL; |
| |
| item = pq_add_item(pq); |
| if (!item) |
| return -ENOMEM; |
| |
| if (to_from_n) { |
| item->len_in = codec->canon_frame_len; |
| item->len_out = fmt->frame_len; |
| item->state = fmt->conv_from_canon; |
| } else { |
| item->len_in = fmt->frame_len; |
| item->len_out = codec->canon_frame_len; |
| item->state = fmt->conv_to_canon; |
| } |
| |
| item->proc = pq_cb_fmt_convert; |
| |
| return 0; |
| } |