diff options
Diffstat (limited to 'sndfile.lua')
| -rw-r--r-- | sndfile.lua | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/sndfile.lua b/sndfile.lua index 47ea1ff..e91fb70 100644 --- a/sndfile.lua +++ b/sndfile.lua @@ -119,19 +119,22 @@ const char* sf_strerror(SNDFILE *sndfile); int sf_command(SNDFILE *sndfile, int command, void *data, int datasize); -sf_count_t sf_read_double(SNDFILE *sndfile, double *ptr, sf_count_t items) ; +sf_count_t sf_read_double(SNDFILE *sndfile, double *ptr, sf_count_t items); +sf_count_t sf_readf_double(SNDFILE *sndfile, double *ptr, sf_count_t frames); + sf_count_t sf_write_double(SNDFILE *sndfile, const double *ptr, sf_count_t items); +sf_count_t sf_writef_double(SNDFILE *sndfile, const double *ptr, sf_count_t frames); int sf_close(SNDFILE *sndfile); ]] local lib = ffi.load("sndfile") -local double_type = ffi.typeof("double[?]") +sndfile.frame_type = ffi.typeof("double[?]") -- This can be reused in sndfile:read() and sndfile:write() -- to avoid allocations. -local double_buffer = double_type(1) +local double_buffer = sndfile.frame_type(1) -- NOTE: Constants are also in ffi.C sndfile.SF_FORMAT = ffi.typeof("SF_FORMAT") @@ -196,12 +199,20 @@ function sndfile:read() tonumber(double_buffer[0]) or nil end +function sndfile:readf(frame) + return lib.sf_readf_double(self.handle, frame, 1) == 1 +end + -- TODO: Maybe support writing multiple samples at once function sndfile:write(sample) double_buffer[0] = sample return lib.sf_write_double(self.handle, double_buffer, 1) end +function sndfile:writef(frame) + return lib.sf_writef_double(self.handle, frame, 1) +end + function sndfile:close() if self.handle then lib.sf_close(self.handle) |