mmq.h

   1 #ifndef MMQ_H
   2 #define MMQ_H
   3
   4 /*
   5  * This includes OS-wide headers that can be expected to be available
   6  * on any machine that mmq can be compiled on for any POSIX-compliant OS
   7  *
   8  * This does not include headers for optional dependencies such as
   9  * those for input/output modules.
  10  */
  11 #define _XOPEN_SOURCE 600
  12 #define _GNU_SOURCE
  13 /* #define _FILE_OFFSET_BITS 64 */  /* off by default */
  14
  15 #include "compat/cc.h"
  16
  17 #include <inttypes.h>
  18 #include <sys/types.h>
  19 #include <unistd.h>
  20 #include <time.h>
  21 #include <mqueue.h>
  22 #include <fcntl.h>
  23 #include <sys/stat.h>
  24 #include <sys/time.h>
  25 #include <stddef.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <errno.h>
  29 #include <assert.h>
  30 #include <stdio.h>
  31 #include <stdarg.h>
  32 #include <signal.h>
  33 #include <limits.h>
  34
  35 extern void emit(const char *err, ...) PRINTF;
  36 extern void warn(const char *err, ...) PRINTF;
  37 extern NORETURN void die(const char *err, ...) PRINTF;
  38
  39 enum player_state {
  40         STATE_PLAY = 0,
  41         STATE_NEXT = 1
  42 };
  43
  44 extern enum player_state g_state;
  45 extern long g_seek_msec;
  46 extern unsigned long g_sample_size;
  47
  48 struct afmt {
  49         unsigned rate;
  50         unsigned bits;
  51         unsigned channels;
  52 };
  53
  54 extern struct afmt g_next_afmt;
  55 int audio_open(void);
  56 void audio_close(int graceful);
  57
  58 typedef long (*conv_fn)(void *dst, void *src, long samples, long offset);
  59 int audio_inject(void *buf, long samples, conv_fn conv_i);
  60 long audio_copy(void *dst, void *src, long samples, long offset);
  61
  62 int input_open(const char *path);
  63 off_t input_seek(off_t offset, int whence);
  64 off_t input_size(void);
  65 ssize_t input_read(void *buf, size_t count);
  66 void *input_mmap(size_t *size);
  67 void input_close(void);
  68
  69 #ifndef O_NOATIME
  70 #  define O_NOATIME 0
  71 #endif
  72
  73 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
  74
  75 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
  76 #  define MMQ_C99 1
  77 #else
  78 #  ifdef NO_INLINE
  79 #    define inline
  80 #  endif
  81 #  ifdef __GNUC__
  82 #    define restrict __restrict
  83 #  else
  84 #    define restrict
  85 #  endif
  86 #  define MMQ_C99 0
  87 #endif
  88
  89 #endif /* MMQ_H */