| /* |
| * codec2 utility functions |
| * Copyright (c) 2017 Tomas Härdin |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <string.h> |
| #include "internal.h" |
| #include "libavcodec/codec2utils.h" |
| |
| #if LIBAVCODEC_VERSION_MAJOR < 59 |
| int avpriv_codec2_mode_bit_rate(void *logctx, int mode) |
| { |
| int frame_size = avpriv_codec2_mode_frame_size(logctx, mode); |
| int block_align = avpriv_codec2_mode_block_align(logctx, mode); |
| |
| if (frame_size <= 0 || block_align <= 0) { |
| return 0; |
| } |
| |
| return 8 * 8000 * block_align / frame_size; |
| } |
| |
| int avpriv_codec2_mode_frame_size(void *logctx, int mode) |
| { |
| int frame_size_table[CODEC2_MODE_MAX+1] = { |
| 160, // 3200 |
| 160, // 2400 |
| 320, // 1600 |
| 320, // 1400 |
| 320, // 1300 |
| 320, // 1200 |
| 320, // 700 |
| 320, // 700B |
| 320, // 700C |
| }; |
| |
| if (mode < 0 || mode > CODEC2_MODE_MAX) { |
| av_log(logctx, AV_LOG_ERROR, "unknown codec2 mode %i, can't find frame_size\n", mode); |
| return 0; |
| } else { |
| return frame_size_table[mode]; |
| } |
| } |
| |
| int avpriv_codec2_mode_block_align(void *logctx, int mode) |
| { |
| int block_align_table[CODEC2_MODE_MAX+1] = { |
| 8, // 3200 |
| 6, // 2400 |
| 8, // 1600 |
| 7, // 1400 |
| 7, // 1300 |
| 6, // 1200 |
| 4, // 700 |
| 4, // 700B |
| 4, // 700C |
| }; |
| |
| if (mode < 0 || mode > CODEC2_MODE_MAX) { |
| av_log(logctx, AV_LOG_ERROR, "unknown codec2 mode %i, can't find block_align\n", mode); |
| return 0; |
| } else { |
| return block_align_table[mode]; |
| } |
| } |
| #endif |