| /* EFR (GSM 06.60) 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 <gapk/codecs.h> |
| #include <gapk/benchmark.h> |
| |
| #include "config.h" |
| |
| |
| #ifdef HAVE_OPENCORE_AMRNB |
| |
| #include <stdlib.h> |
| |
| #include <opencore-amrnb/interf_dec.h> |
| #include <opencore-amrnb/interf_enc.h> |
| |
| |
| struct codec_efr_state { |
| void *encoder; |
| void *decoder; |
| }; |
| |
| |
| static void * |
| codec_efr_init(void) |
| { |
| struct codec_efr_state *st; |
| |
| st = calloc(1, sizeof(*st)); |
| if (!st) |
| return NULL; |
| |
| st->encoder = Encoder_Interface_init(0); |
| st->decoder = Decoder_Interface_init(); |
| |
| return (void *)st; |
| } |
| |
| static void |
| codec_efr_exit(void *state) |
| { |
| struct codec_efr_state *st = state; |
| |
| Decoder_Interface_exit(st->decoder); |
| Encoder_Interface_exit(st->encoder); |
| |
| return; |
| } |
| |
| static int |
| codec_efr_encode(void *state, uint8_t *cod, const uint8_t *pcm) |
| { |
| struct codec_efr_state *st = state; |
| int rv; |
| |
| BENCHMARK_START; |
| rv = Encoder_Interface_Encode( |
| st->encoder, |
| MR122, |
| (const short*) pcm, |
| (unsigned char*) cod, |
| 1 |
| ); |
| BENCHMARK_STOP(CODEC_EFR, 1); |
| |
| return rv != 32; |
| } |
| |
| static int |
| codec_efr_decode(void *state, uint8_t *pcm, const uint8_t *cod) |
| { |
| struct codec_efr_state *st = state; |
| |
| BENCHMARK_START; |
| Decoder_Interface_Decode( |
| st->decoder, |
| (const unsigned char*) cod, |
| (short *) pcm, |
| 0 |
| ); |
| BENCHMARK_STOP(CODEC_EFR, 0); |
| |
| return 0; |
| } |
| |
| #endif /* HAVE_OPENCORE_AMRNB */ |
| |
| |
| const struct codec_desc codec_efr_desc = { |
| .type = CODEC_EFR, |
| .name = "efr", |
| .description = "GSM 06.60 Enhanced Full Rate codec", |
| .canon_frame_len = EFR_CANON_LEN, |
| #ifdef HAVE_OPENCORE_AMRNB |
| .codec_enc_format_type = FMT_AMR_EFR, |
| .codec_dec_format_type = FMT_AMR_EFR, |
| .codec_init = codec_efr_init, |
| .codec_exit = codec_efr_exit, |
| .codec_encode = codec_efr_encode, |
| .codec_decode = codec_efr_decode, |
| #endif |
| }; |