music_cmd.h
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上传日期:2022-07-21
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文件大小:2k
- /*
- SDL_mixer: An audio mixer library based on the SDL library
- Copyright (C) 1997-2009 Sam Lantinga
- 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
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Sam Lantinga
- slouken@libsdl.org
- */
- /* This file supports an external command for playing music */
- #ifdef CMD_MUSIC
- #include <sys/types.h>
- #include <limits.h>
- #include <stdio.h>
- #if defined(__linux__) && defined(__arm__)
- # include <linux/limits.h>
- #endif
- typedef struct {
- char file[PATH_MAX];
- char cmd[PATH_MAX];
- pid_t pid;
- } MusicCMD;
- /* Unimplemented */
- extern void MusicCMD_SetVolume(int volume);
- /* Load a music stream from the given file */
- extern MusicCMD *MusicCMD_LoadSong(const char *cmd, const char *file);
- /* Start playback of a given music stream */
- extern void MusicCMD_Start(MusicCMD *music);
- /* Stop playback of a stream previously started with MusicCMD_Start() */
- extern void MusicCMD_Stop(MusicCMD *music);
- /* Pause playback of a given music stream */
- extern void MusicCMD_Pause(MusicCMD *music);
- /* Resume playback of a given music stream */
- extern void MusicCMD_Resume(MusicCMD *music);
- /* Close the given music stream */
- extern void MusicCMD_FreeSong(MusicCMD *music);
- /* Return non-zero if a stream is currently playing */
- extern int MusicCMD_Active(MusicCMD *music);
- #endif /* CMD_MUSIC */