/***************************************************************************** * ijksdl_audio.c ***************************************************************************** * * copyright (c) 2013 Zhang Rui * * This file is part of ijkPlayer. * * ijkPlayer 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. * * ijkPlayer 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 ijkPlayer; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "ijksdl_audio.h" void SDL_CalculateAudioSpec(SDL_AudioSpec * spec) { switch (spec->format) { case AUDIO_U8: spec->silence = 0x80; break; default: spec->silence = 0x00; break; } spec->size = SDL_AUDIO_BITSIZE(spec->format) / 8; spec->size *= spec->channels; spec->size *= spec->samples; } void SDL_MixAudio(Uint8* dst, const Uint8* src, Uint32 len, int volume) { // do nothing; }