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95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
2 years ago
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#ifndef SC_AUDIOBUF_H
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#define SC_AUDIOBUF_H
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#include "common.h"
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#include <stdbool.h>
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#include <stdint.h>
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#include "util/bytebuf.h"
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/**
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* Wrapper around bytebuf to read and write samples
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*
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* Each sample takes sample_size bytes.
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*/
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struct sc_audiobuf {
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struct sc_bytebuf buf;
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size_t sample_size;
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};
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static inline uint32_t
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sc_audiobuf_to_samples(struct sc_audiobuf *buf, size_t bytes) {
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assert(bytes % buf->sample_size == 0);
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return bytes / buf->sample_size;
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}
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static inline size_t
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sc_audiobuf_to_bytes(struct sc_audiobuf *buf, uint32_t samples) {
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return samples * buf->sample_size;
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}
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static inline bool
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sc_audiobuf_init(struct sc_audiobuf *buf, size_t sample_size,
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uint32_t capacity) {
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buf->sample_size = sample_size;
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return sc_bytebuf_init(&buf->buf, capacity * sample_size + 1);
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}
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static inline void
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sc_audiobuf_read(struct sc_audiobuf *buf, uint8_t *to, uint32_t samples) {
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size_t bytes = sc_audiobuf_to_bytes(buf, samples);
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sc_bytebuf_read(&buf->buf, to, bytes);
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}
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static inline void
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sc_audiobuf_skip(struct sc_audiobuf *buf, uint32_t samples) {
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size_t bytes = sc_audiobuf_to_bytes(buf, samples);
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sc_bytebuf_skip(&buf->buf, bytes);
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}
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static inline void
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sc_audiobuf_write(struct sc_audiobuf *buf, const uint8_t *from,
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uint32_t samples) {
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size_t bytes = sc_audiobuf_to_bytes(buf, samples);
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sc_bytebuf_write(&buf->buf, from, bytes);
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}
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static inline void
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sc_audiobuf_prepare_write(struct sc_audiobuf *buf, const uint8_t *from,
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uint32_t samples) {
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size_t bytes = sc_audiobuf_to_bytes(buf, samples);
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sc_bytebuf_prepare_write(&buf->buf, from, bytes);
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}
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static inline void
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sc_audiobuf_commit_write(struct sc_audiobuf *buf, uint32_t samples) {
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size_t bytes = sc_audiobuf_to_bytes(buf, samples);
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sc_bytebuf_commit_write(&buf->buf, bytes);
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}
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static inline uint32_t
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sc_audiobuf_read_available(struct sc_audiobuf *buf) {
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size_t bytes = sc_bytebuf_read_available(&buf->buf);
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return sc_audiobuf_to_samples(buf, bytes);
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}
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static inline uint32_t
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sc_audiobuf_write_available(struct sc_audiobuf *buf) {
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size_t bytes = sc_bytebuf_write_available(&buf->buf);
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return sc_audiobuf_to_samples(buf, bytes);
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}
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static inline uint32_t
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sc_audiobuf_capacity(struct sc_audiobuf *buf) {
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size_t bytes = sc_bytebuf_capacity(&buf->buf);
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return sc_audiobuf_to_samples(buf, bytes);
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}
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static inline void
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sc_audiobuf_destroy(struct sc_audiobuf *buf) {
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sc_bytebuf_destroy(&buf->buf);
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}
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#endif
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