| /* HR RTP Payload according to ETSI TS 101 318. Incompatible with RFC5993! */ |
| /* (C) 2017 by Harald Welte <laforge@gnumonks.org> */ |
| |
| /* |
| * 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 <stdint.h> |
| #include <assert.h> |
| #include <string.h> |
| |
| #include <osmocom/gapk/codecs.h> |
| #include <osmocom/gapk/formats.h> |
| #include <osmocom/gapk/utils.h> |
| |
| /* conversion function: RTP payload -> canonical format */ |
| static int |
| rtp_hr_etsi_from_canon(uint8_t *dst, const uint8_t *src, unsigned int src_len) |
| { |
| /* according to TS 101 318 */ |
| assert(src_len == HR_CANON_LEN); |
| memcpy(dst, src, src_len); |
| |
| return src_len; |
| } |
| |
| /* conversion function: canonical format -> RTP payload */ |
| static int |
| rtp_hr_etsi_to_canon(uint8_t *dst, const uint8_t *src, unsigned int src_len) |
| { |
| /* according to TS 101 318 */ |
| assert(src_len == HR_CANON_LEN); |
| memcpy(dst, src, src_len); |
| |
| return HR_CANON_LEN; |
| } |
| |
| const struct osmo_gapk_format_desc fmt_rtp_hr_etsi = { |
| .type = FMT_RTP_HR_ETSI, |
| .codec_type = CODEC_HR, |
| .name = "rtp-hr-etsi", |
| .description = "RTP payload for HR according to ETSI TS 101 318", |
| |
| .frame_len = HR_CANON_LEN, |
| .conv_from_canon = rtp_hr_etsi_from_canon, |
| .conv_to_canon = rtp_hr_etsi_to_canon, |
| }; |