| /* HR (GSM 06.20) codec */ |
| |
| /* |
| * 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 <assert.h> |
| |
| #include <gapk/codecs.h> |
| #include <gapk/benchmark.h> |
| |
| #include "config.h" |
| |
| |
| #ifdef HAVE_LIBGSMHR |
| |
| #include <gsmhr/gsmhr.h> |
| |
| static void * |
| codec_hr_init(void) |
| { |
| return (void *)gsmhr_init(); |
| } |
| |
| static void |
| codec_hr_exit(void *_state) |
| { |
| struct gsmhr *state = _state; |
| gsmhr_exit(state); |
| } |
| |
| static int |
| codec_hr_encode(void *_state, uint8_t *cod, const uint8_t *pcm, unsigned int pcm_len) |
| { |
| struct gsmhr *state = _state; |
| int rc; |
| assert(pcm_len == PCM_CANON_LEN); |
| BENCHMARK_START; |
| rc = gsmhr_encode(state, (int16_t *)cod, (const int16_t *)pcm); |
| BENCHMARK_STOP(CODEC_HR, 1); |
| if (rc < 0) |
| return rc; |
| return HR_REF_ENC_LEN; |
| } |
| |
| static int |
| codec_hr_decode(void *_state, uint8_t *pcm, const uint8_t *cod, unsigned int cod_len) |
| { |
| struct gsmhr *state = _state; |
| int rc; |
| assert(cod_len == HR_REF_DEC_LEN); |
| BENCHMARK_START; |
| rc = gsmhr_decode(state, (int16_t *)pcm, (const int16_t *)cod); |
| BENCHMARK_STOP(CODEC_HR, 0); |
| if (rc < 0) |
| return rc; |
| return PCM_CANON_LEN; |
| } |
| |
| #endif /* HAVE_LIBGSMHR */ |
| |
| |
| const struct codec_desc codec_hr_desc = { |
| .type = CODEC_HR, |
| .name = "hr", |
| .description = "GSM 06.20 Half Rate codec", |
| .canon_frame_len = HR_CANON_LEN, |
| #ifdef HAVE_LIBGSMHR |
| .codec_enc_format_type = FMT_HR_REF_ENC, |
| .codec_dec_format_type = FMT_HR_REF_DEC, |
| .codec_init = codec_hr_init, |
| .codec_exit = codec_hr_exit, |
| .codec_encode = codec_hr_encode, |
| .codec_decode = codec_hr_decode, |
| #endif |
| }; |