/* the Music Player Daemon (MPD) * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) * Copyright (C) 2008 Max Kellermann <max@duempel.org> * This project's homepage is: http://www.musicpd.org * * 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 2 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, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef OUTPUT_API_H #define OUTPUT_API_H #include "../config.h" #include "pcm_utils.h" #include "audio_format.h" #include "tag.h" #include "conf.h" #include "log.h" #include "os_compat.h" #define DISABLED_AUDIO_OUTPUT_PLUGIN(plugin) const struct audio_output_plugin plugin; struct audio_output; typedef int (*AudioOutputTestDefaultDeviceFunc) (void); typedef int (*AudioOutputInitDriverFunc) (struct audio_output *audioOutput, ConfigParam * param); typedef void (*AudioOutputFinishDriverFunc) (struct audio_output *audioOutput); typedef int (*AudioOutputOpenDeviceFunc) (struct audio_output *audioOutput); typedef int (*AudioOutputPlayFunc) (struct audio_output *audioOutput, const char *playChunk, size_t size); typedef void (*AudioOutputDropBufferedAudioFunc) (struct audio_output *audioOutput); typedef void (*AudioOutputCloseDeviceFunc) (struct audio_output *audioOutput); typedef void (*AudioOutputSendMetadataFunc) (struct audio_output *audioOutput, const struct tag *tag); struct audio_output_plugin { const char *name; AudioOutputTestDefaultDeviceFunc testDefaultDeviceFunc; AudioOutputInitDriverFunc initDriverFunc; AudioOutputFinishDriverFunc finishDriverFunc; AudioOutputOpenDeviceFunc openDeviceFunc; AudioOutputPlayFunc playFunc; AudioOutputDropBufferedAudioFunc dropBufferedAudioFunc; AudioOutputCloseDeviceFunc closeDeviceFunc; AudioOutputSendMetadataFunc sendMetdataFunc; }; struct audio_output { int open; const char *name; const struct audio_output_plugin *plugin; int convertAudioFormat; struct audio_format inAudioFormat; struct audio_format outAudioFormat; struct audio_format reqAudioFormat; ConvState convState; char *convBuffer; size_t convBufferLen; int sameInAndOutFormats; void *data; }; #endif