00001 #ifndef foosamplehfoo
00002 #define foosamplehfoo
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00025 #include <inttypes.h>
00026 #include <sys/types.h>
00027 #include <math.h>
00028
00029 #include <pulse/cdecl.h>
00030
00100 PA_C_DECL_BEGIN
00101
00103 #define PA_CHANNELS_MAX 32
00104
00106 #define PA_RATE_MAX (48000*4)
00107
00109 typedef enum pa_sample_format {
00110 PA_SAMPLE_U8,
00111 PA_SAMPLE_ALAW,
00112 PA_SAMPLE_ULAW,
00113 PA_SAMPLE_S16LE,
00114 PA_SAMPLE_S16BE,
00115 PA_SAMPLE_FLOAT32LE,
00116 PA_SAMPLE_FLOAT32BE,
00117 PA_SAMPLE_MAX,
00118 PA_SAMPLE_INVALID = -1
00119 } pa_sample_format_t;
00120
00121 #ifdef WORDS_BIGENDIAN
00122
00123 #define PA_SAMPLE_S16NE PA_SAMPLE_S16BE
00124
00125 #define PA_SAMPLE_FLOAT32NE PA_SAMPLE_FLOAT32BE
00126
00127 #define PA_SAMPLE_S16RE PA_SAMPLE_S16LE
00128
00129 #define PA_SAMPLE_FLOAT32RE PA_SAMPLE_FLOAT32LE
00130 #else
00131
00132 #define PA_SAMPLE_S16NE PA_SAMPLE_S16LE
00133
00134 #define PA_SAMPLE_FLOAT32NE PA_SAMPLE_FLOAT32LE
00135
00136 #define PA_SAMPLE_S16RE PA_SAMPLE_S16BE
00137
00138 #define PA_SAMPLE_FLOAT32RE PA_SAMPLE_FLOAT32BE
00139 #endif
00140
00142 #define PA_SAMPLE_FLOAT32 PA_SAMPLE_FLOAT32NE
00143
00145 typedef struct pa_sample_spec {
00146 pa_sample_format_t format;
00147 uint32_t rate;
00148 uint8_t channels;
00149 } pa_sample_spec;
00150
00152 typedef uint64_t pa_usec_t;
00153
00155 size_t pa_bytes_per_second(const pa_sample_spec *spec);
00156
00158 size_t pa_frame_size(const pa_sample_spec *spec);
00159
00161 size_t pa_sample_size(const pa_sample_spec *spec);
00162
00164 pa_usec_t pa_bytes_to_usec(uint64_t length, const pa_sample_spec *spec);
00165
00167 size_t pa_usec_to_bytes(pa_usec_t t, const pa_sample_spec *spec);
00168
00170 int pa_sample_spec_valid(const pa_sample_spec *spec);
00171
00173 int pa_sample_spec_equal(const pa_sample_spec*a, const pa_sample_spec*b);
00174
00176 const char *pa_sample_format_to_string(pa_sample_format_t f);
00177
00179 pa_sample_format_t pa_parse_sample_format(const char *format);
00180
00182 #define PA_SAMPLE_SPEC_SNPRINT_MAX 32
00183
00185 char* pa_sample_spec_snprint(char *s, size_t l, const pa_sample_spec *spec);
00186
00188 char* pa_bytes_snprint(char *s, size_t l, unsigned v);
00189
00190 PA_C_DECL_END
00191
00192 #endif