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commit liboil porting changes

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/liboil-test@344 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2005-09-15 23:42:56 +00:00
parent 0c9873e5b3
commit e1f008f2a3
23 changed files with 917 additions and 232 deletions
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48
polyp/sample.h
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@ -33,8 +33,11 @@
PA_C_DECL_BEGIN
/* Maximum allowed channels */
#define PA_CHANNELS_MAX 16
/** Sample format */
enum pa_sample_format {
typedef enum {
PA_SAMPLE_U8, /**< Unsigned 8 Bit PCM */
PA_SAMPLE_ALAW, /**< 8 Bit a-Law */
PA_SAMPLE_ULAW, /**< 8 Bit mu-Law */
@ -44,7 +47,7 @@ enum pa_sample_format {
PA_SAMPLE_FLOAT32BE, /**< 32 Bit IEEE floating point, big endian, range -1..1 */
PA_SAMPLE_MAX, /**< Upper limit of valid sample types */
PA_SAMPLE_INVALID = -1 /**< An invalid value */
};
} pa_sample_format_t;
#ifdef WORDS_BIGENDIAN
/** Signed 16 Bit PCM, native endian */
@ -63,7 +66,7 @@ enum pa_sample_format {
/** A sample format and attribute specification */
struct pa_sample_spec {
enum pa_sample_format format; /**< The sample format */
pa_sample_format_t format; /**< The sample format */
uint32_t rate; /**< The sample rate. (e.g. 44100) */
uint8_t channels; /**< Audio channels. (1 for mono, 2 for stereo, ...) */
};
@ -87,7 +90,10 @@ int pa_sample_spec_valid(const struct pa_sample_spec *spec);
int pa_sample_spec_equal(const struct pa_sample_spec*a, const struct pa_sample_spec*b);
/* Return a descriptive string for the specified sample format. \since 0.8 */
const char *pa_sample_format_to_string(enum pa_sample_format f);
const char *pa_sample_format_to_string(pa_sample_format_t f);
/** Parse a sample format text. Inverse of pa_sample_format_to_string() */
pa_sample_format_t pa_parse_sample_format(const char *format);
/** Maximum required string length for pa_sample_spec_snprint() */
#define PA_SAMPLE_SPEC_SNPRINT_MAX 32
@ -95,43 +101,9 @@ const char *pa_sample_format_to_string(enum pa_sample_format f);
/** Pretty print a sample type specification to a string */
char* pa_sample_spec_snprint(char *s, size_t l, const struct pa_sample_spec *spec);
/** Volume specification: 0: silence; < 256: diminished volume; 256: normal volume; > 256 amplified volume */
typedef uint32_t pa_volume_t;
/** Normal volume (100%) */
#define PA_VOLUME_NORM (0x100)
/** Muted volume (0%) */
#define PA_VOLUME_MUTED (0)
/** Multiply two volumes specifications, return the result. This uses PA_VOLUME_NORM as neutral element of multiplication. */
pa_volume_t pa_volume_multiply(pa_volume_t a, pa_volume_t b);
/** Convert volume from decibel to linear level. \since 0.4 */
pa_volume_t pa_volume_from_dB(double f);
/** Convert volume from linear level to decibel. \since 0.4 */
double pa_volume_to_dB(pa_volume_t v);
/** Convert volume to scaled value understandable by the user (between 0 and 1). \since 0.6 */
double pa_volume_to_user(pa_volume_t v);
/** Convert user volume to polypaudio volume. \since 0.6 */
pa_volume_t pa_volume_from_user(double v);
#ifdef INFINITY
#define PA_DECIBEL_MININFTY (-INFINITY)
#else
/** This value is used as minus infinity when using pa_volume_{to,from}_dB(). \since 0.4 */
#define PA_DECIBEL_MININFTY (-200)
#endif
/** Pretty print a byte size value. (i.e. "2.5 MB") */
void pa_bytes_snprint(char *s, size_t l, unsigned v);
/** Parse a sample format text. Inverse of pa_sample_format_to_string() */
enum pa_sample_format pa_parse_sample_format(const char *format);
PA_C_DECL_END
#endif