diff options
Diffstat (limited to 'usr.bin/aucat/aproc.h')
| -rw-r--r-- | usr.bin/aucat/aproc.h | 57 |
1 files changed, 52 insertions, 5 deletions
diff --git a/usr.bin/aucat/aproc.h b/usr.bin/aucat/aproc.h index 7b910155d3f..40eb26f7433 100644 --- a/usr.bin/aucat/aproc.h +++ b/usr.bin/aucat/aproc.h @@ -1,4 +1,4 @@ -/* $OpenBSD: aproc.h,v 1.31 2010/04/03 17:59:17 ratchov Exp $ */ +/* $OpenBSD: aproc.h,v 1.32 2010/04/06 20:07:01 ratchov Exp $ */ /* * Copyright (c) 2008 Alexandre Ratchov <alex@caoua.org> * @@ -130,26 +130,37 @@ struct aproc { union { /* follow type-specific data */ struct { /* file/device io */ struct file *file; /* file to read/write */ + unsigned partial; /* bytes of partial frame */ } io; struct { unsigned idle; /* frames since idleing */ + unsigned round; /* block size, for xruns */ int lat; /* current latency */ int maxlat; /* max latency allowed */ - struct aproc *ctl; + unsigned abspos; /* frames produced */ + struct aproc *ctl; /* MIDI control/sync */ + struct aproc *mon; /* snoop output */ } mix; struct { unsigned idle; /* frames since idleing */ + unsigned round; /* block size, for xruns */ int lat; /* current latency */ int maxlat; /* max latency allowed */ + unsigned abspos; /* frames consumed */ struct aproc *ctl; } sub; struct { + int delta; /* time position */ + unsigned bufsz; /* buffer size (latency) */ + unsigned pending; /* uncommited samples */ + } mon; + struct { #define RESAMP_NCTX 2 unsigned ctx_start; short ctx[NCHAN_MAX * RESAMP_NCTX]; unsigned iblksz, oblksz; int diff; - int idelta, odelta; /* remainder of resamp_[io]pos */ + int idelta, odelta; /* remainder of resamp_xpos */ } resamp; struct { short ctx[NCHAN_MAX]; @@ -191,6 +202,8 @@ struct aproc { struct ctl_ops { void (*vol)(void *, unsigned); void (*start)(void *); + void (*stop)(void *); + void (*loc)(void *, unsigned); } *ops; void *arg; unsigned unit; @@ -203,6 +216,18 @@ struct aproc { } u; }; +/* + * Check if the given pointer is a valid aproc structure. + * + * aproc structures are not free()'d immediately, because + * there may be pointers to them, instead the APROC_ZOMB flag + * is set which means that they should not be used. When + * aprocs reference counter reaches zero, they are actually + * freed + */ +#define APROC_OK(p) ((p) && !((p)->flags & APROC_ZOMB)) + + struct aproc *aproc_new(struct aproc_ops *, char *); void aproc_del(struct aproc *); void aproc_dbg(struct aproc *); @@ -210,18 +235,40 @@ void aproc_setin(struct aproc *, struct abuf *); void aproc_setout(struct aproc *, struct abuf *); int aproc_depend(struct aproc *, struct aproc *); +void aproc_ipos(struct aproc *, struct abuf *, int); +void aproc_opos(struct aproc *, struct abuf *, int); + struct aproc *rfile_new(struct file *); struct aproc *wfile_new(struct file *); -struct aproc *mix_new(char *, int, struct aproc *); -struct aproc *sub_new(char *, int, struct aproc *); +struct aproc *mix_new(char *, int, unsigned, struct aproc *); +struct aproc *sub_new(char *, int, unsigned, struct aproc *); struct aproc *resamp_new(char *, unsigned, unsigned); struct aproc *cmap_new(char *, struct aparams *, struct aparams *); struct aproc *enc_new(char *, struct aparams *); struct aproc *dec_new(char *, struct aparams *); +struct aproc *mon_new(char *, unsigned); + +int rfile_in(struct aproc *, struct abuf *); +int rfile_out(struct aproc *, struct abuf *); +void rfile_eof(struct aproc *, struct abuf *); +void rfile_hup(struct aproc *, struct abuf *); +void rfile_done(struct aproc *); +int rfile_do(struct aproc *, unsigned, unsigned *); + +int wfile_in(struct aproc *, struct abuf *); +int wfile_out(struct aproc *, struct abuf *); +void wfile_eof(struct aproc *, struct abuf *); +void wfile_hup(struct aproc *, struct abuf *); +void wfile_done(struct aproc *); +int wfile_do(struct aproc *, unsigned, unsigned *); void mix_setmaster(struct aproc *); void mix_clear(struct aproc *); void mix_prime(struct aproc *); +void mix_drop(struct abuf *, int); +void sub_silence(struct abuf *, int); void sub_clear(struct aproc *); +void mon_snoop(struct aproc *, struct abuf *, unsigned, unsigned); +void mon_clear(struct aproc *); #endif /* !defined(APROC_H) */ |