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107 lines
2.6 KiB
107 lines
2.6 KiB
15 years ago
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/*
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* Audio 'LIB' defines
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*/
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#define AUDIO_OUT_HEADPHONES 0x01
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#define AUDIO_OUT_INTERNAL_SPEAKER 0x02
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#define AUDIO_OUT_LINE_OUT 0x04
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enum { DECODE_TEST, DECODE_AUDIO, DECODE_FILE, DECODE_BUFFER, DECODE_WAV,
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DECODE_AU,DECODE_CDR,DECODE_AUDIOFILE };
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#define AUDIO_FORMAT_MASK 0x100
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#define AUDIO_FORMAT_16 0x100
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#define AUDIO_FORMAT_8 0x000
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#define AUDIO_FORMAT_SIGNED_16 0x110
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#define AUDIO_FORMAT_UNSIGNED_16 0x120
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#define AUDIO_FORMAT_UNSIGNED_8 0x1
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#define AUDIO_FORMAT_SIGNED_8 0x2
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#define AUDIO_FORMAT_ULAW_8 0x4
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#define AUDIO_FORMAT_ALAW_8 0x8
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/* 3% rate tolerance */
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#define AUDIO_RATE_TOLERANCE 3
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#if 0
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#if defined(HPUX) || defined(SUNOS) || defined(SOLARIS) || defined(OSS) || defined(__NetBSD__) || defined(SPARCLINUX) || defined(__FreeBSD__)
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#endif
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#endif
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#ifndef AIX_UMS
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#define AUDIO_USES_FD
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#endif
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#ifdef AIX_UMS
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#include <UMSAudioDevice.h>
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#endif
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#ifdef SGI
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/* #include <audio.h> */
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#include <dmedia/audio.h>
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#endif
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#ifdef HAVE_ALSA_ASOUNDLIB_H
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#include <alsa/asoundlib.h>
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#elif defined(HAVE_SYS_ASOUNDLIB_H)
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#include <sys/asoundlib.h>
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#endif
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struct audio_info_struct
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{
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#ifdef AUDIO_USES_FD
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int fn; /* filenumber */
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#endif
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#ifdef SGI
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ALconfig config;
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ALport port;
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#endif
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long rate;
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long gain;
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int output;
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#ifdef ALSA
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snd_pcm_t *handle;
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snd_pcm_format_t alsa_format;
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#endif
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#ifdef AIX_UMS
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UMSAudioDevice dev;
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UMSAudioDeviceMClass class;
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Environment *ev;
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UMSAudioDeviceMClass_ErrorCode err;
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char *errstr;
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char *fmtal;
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char *inp;
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char *out;
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#endif
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char *device;
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int channels;
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int format;
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int private1;
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void *private2;
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};
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struct audio_name {
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int val;
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char *name;
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char *sname;
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};
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extern void audio_capabilities(struct audio_info_struct *);
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extern void audio_fit_capabilities(struct audio_info_struct *ai,int c,int r);
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extern char *audio_encoding_name(int format);
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extern int audio_play_samples(struct audio_info_struct *,unsigned char *,int);
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extern int audio_open(struct audio_info_struct *);
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extern int audio_reset_parameters(struct audio_info_struct *);
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extern int audio_rate_best_match(struct audio_info_struct *ai);
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extern int audio_set_rate(struct audio_info_struct *);
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extern int audio_set_format(struct audio_info_struct *);
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extern int audio_get_formats(struct audio_info_struct *);
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extern int audio_set_channels(struct audio_info_struct *);
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extern int audio_write_sample(struct audio_info_struct *,short *,int);
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extern int audio_close(struct audio_info_struct *);
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extern void audio_info_struct_init(struct audio_info_struct *);
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extern void audio_queueflush(struct audio_info_struct *ai);
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