+/*
+ * Copyright (C) 2013 nu774
+ * For conditions of distribution and use, see copyright notice in COPYING
+ */
#ifndef PCM_READER_H
#define PCM_READER_H
(*r)->vtbl->teardown(r);
}
-pcm_reader_t *pcm_open_sint16_converter(pcm_reader_t *reader);
+static inline
+uint32_t bitcount(uint32_t bits)
+{
+ bits = (bits & 0x55555555) + (bits >> 1 & 0x55555555);
+ bits = (bits & 0x33333333) + (bits >> 2 & 0x33333333);
+ bits = (bits & 0x0f0f0f0f) + (bits >> 4 & 0x0f0f0f0f);
+ bits = (bits & 0x00ff00ff) + (bits >> 8 & 0x00ff00ff);
+ return (bits & 0x0000ffff) + (bits >>16 & 0x0000ffff);
+}
#define TRY_IO(expr) \
do { \
if ((expr)) goto FAIL; \
} while (0)
+#define ENSURE(expr) \
+ do { \
+ if (!(expr)) goto FAIL;\
+ } while (0)
+
int pcm_read(pcm_io_context_t *io, void *buffer, uint32_t size);
int pcm_skip(pcm_io_context_t *io, int64_t count);
-static int pcm_seek(pcm_io_context_t *io, int64_t off, int whence)
+static inline int pcm_seek(pcm_io_context_t *io, int64_t off, int whence)
{
return io->vtbl->seek ? io->vtbl->seek(io->cookie, off, whence) : -1;
}
int pcm_scanl(pcm_io_context_t *io, const char *fmt, ...);
int pcm_scanb(pcm_io_context_t *io, const char *fmt, ...);
+int apple_chan_chunk(pcm_io_context_t *io, uint32_t chunk_size,
+ pcm_sample_description_t *fmt, uint8_t *mapping);
+
+pcm_reader_t *pcm_open_sint16_converter(pcm_reader_t *reader);
+
+pcm_reader_t *extrapolater_open(pcm_reader_t *reader);
+
#endif