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refactoring

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This commit is contained in:
Maxim Devaev
2025-01-18 18:32:41 +02:00
parent a94ff667b0
commit 918688e91d
3 changed files with 123 additions and 55 deletions
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57
janus/src/au.h Normal file
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/*****************************************************************************
# #
# uStreamer - Lightweight and fast MJPEG-HTTP streamer. #
# #
# Copyright (C) 2018-2024 Maxim Devaev <mdevaev@gmail.com> #
# #
# This program 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. #
# #
# This program 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 this program. If not, see <https://www.gnu.org/licenses/>. #
# #
*****************************************************************************/
#pragma once
#include "uslibs/types.h"
#include "rtp.h"
// A number of frames per 1 channel:
// - https://github.com/xiph/opus/blob/7b05f44/src/opus_demo.c#L368
// #define _HZ_TO_FRAMES(_hz) (6 * (_hz) / 50) // 120ms
#define US_AU_HZ_TO_FRAMES(_hz) ((_hz) / 50) // 20ms
#define US_AU_HZ_TO_BUF16(_hz) (US_AU_HZ_TO_FRAMES(_hz) * US_RTP_OPUS_CH) // ... * 2: One stereo frame = (16bit L) + (16bit R)
#define US_AU_HZ_TO_BUF8(_hz) (US_AU_HZ_TO_BUF16(_hz) * sizeof(s16))
#define US_AU_MIN_PCM_HZ 8000
#define US_AU_MAX_PCM_HZ 192000
#define US_AU_MAX_BUF16 US_AU_HZ_TO_BUF16(US_AU_MAX_PCM_HZ)
#define US_AU_MAX_BUF8 US_AU_HZ_TO_BUF8(US_AU_MAX_PCM_HZ)
typedef struct {
s16 data[US_AU_MAX_BUF16];
} us_au_pcm_s;
typedef struct {
u8 data[US_RTP_PAYLOAD_SIZE];
uz used;
u64 pts;
} us_au_encoded_s;
us_au_pcm_s *us_au_pcm_init(void);
void us_au_pcm_destroy(us_au_pcm_s *pcm);
us_au_encoded_s *us_au_encoded_init(void);
void us_au_encoded_destroy(us_au_encoded_s *enc);