AlsaCompatibility.cpp (1229B)
1 /* This Source Code Form is subject to the terms of the Mozilla Public 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ 4 5 #include "mozilla/Assertions.h" 6 7 // The code in this file is a workaround for building with ALSA versions prior 8 // to 1.1. Various functions that the alsa crate (a dependency of the midir 9 // crate) use are missing from those versions. The functions are not actually 10 // used so we provide dummy implementations that return an error. This file 11 // can be safely removed when the Linux sysroot will be updated to Debian 9 12 // (or higher) 13 #include <alsa/asoundlib.h> 14 15 extern "C" { 16 17 #define ALSA_DIVERT(func) \ 18 int func(void) { \ 19 MOZ_CRASH(#func "should never be called."); \ 20 return -1; \ 21 } 22 23 #if (SND_LIB_MAJOR == 1) && (SND_LIB_MINOR == 0) && (SND_LIB_SUBMINOR < 29) 24 ALSA_DIVERT(snd_pcm_sw_params_set_tstamp_type) 25 ALSA_DIVERT(snd_pcm_sw_params_get_tstamp_type) 26 #endif 27 28 #if (SND_LIB_MAJOR == 1) && (SND_LIB_MINOR < 1) 29 ALSA_DIVERT(snd_pcm_hw_params_supports_audio_ts_type) 30 ALSA_DIVERT(snd_pcm_status_set_audio_htstamp_config) 31 #endif 32 }