| /* GStreamer openaptx audio plugin | |
| * | |
| * Copyright (C) 2020 Igor V. Kovalenko <igor.v.kovalenko@gmail.com> | |
| * Copyright (C) 2020 Thomas Weißschuh <thomas@t-8ch.de> | |
| * | |
| * This library is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Library General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2 of the License, or (at your option) any later version. | |
| * | |
| * This library 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 | |
| * Library General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Library General Public | |
| * License along with this library; if not, write to the | |
| * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, | |
| * Boston, MA 02110-1301, USA. | |
| */ | |
| #ifndef __GST_OPENAPTX_PLUGIN_H__ | |
| #define __GST_OPENAPTX_PLUGIN_H__ | |
| #include <glib.h> | |
| #define APTX_HD_DEFAULT 1 | |
| #define APTX_AUTOSYNC_DEFAULT TRUE | |
| #define APTX_LATENCY_SAMPLES 90 | |
| /* always stereo */ | |
| #define APTX_NUM_CHANNELS 2 | |
| /* always S24LE */ | |
| #define APTX_SAMPLE_SIZE 3 | |
| /* always 4 samples per channel*/ | |
| #define APTX_SAMPLES_PER_CHANNEL 4 | |
| /* always 4 stereo samples */ | |
| #define APTX_SAMPLES_PER_FRAME (APTX_SAMPLES_PER_CHANNEL * APTX_NUM_CHANNELS) | |
| /* fixed encoded frame size hd=0: LLRR, hd=1: LLLRRR */ | |
| #define APTX_FRAME_SIZE (2 * APTX_NUM_CHANNELS) | |
| #define APTX_HD_FRAME_SIZE (3 * APTX_NUM_CHANNELS) | |
| /* while finishing encoding, up to 92 frames will be produced */ | |
| #define APTX_FINISH_FRAMES 92 | |
| static inline const char* aptx_name(gboolean hd) | |
| { | |
| return hd ? "aptX-HD" : "aptX"; | |
| } | |
| /* fixed encoded frame size hd=FALSE: LLRR, hd=TRUE: LLLRRR */ | |
| static inline gsize aptx_frame_size(gboolean hd) | |
| { | |
| return hd ? APTX_HD_FRAME_SIZE : APTX_FRAME_SIZE; | |
| } | |
| #endif /* __GST_OPENAPTX_PLUGIN_H__ */ |