37 static int32_t ft_read_b_buf(void * ft, void * buf, int32_t len) {  in ft_read_b_buf()  argument
38   return (int32_t)lsx_read_b_buf((sox_format_t *)ft, buf, (size_t)len);}  in ft_read_b_buf()
39 static uint32_t ft_tell(void * ft) {  in ft_tell()  argument
40   return lsx_tell((sox_format_t *)ft);}  in ft_tell()
41 static int ft_seek_abs(void * ft, uint32_t offset) {  in ft_seek_abs()  argument
42   return lsx_seeki((sox_format_t *)ft, (off_t)offset, SEEK_SET);}  in ft_seek_abs()
43 static int ft_seek_rel(void * ft, int32_t offset, int mode) {  in ft_seek_rel()  argument
44   return lsx_seeki((sox_format_t *)ft, (off_t)offset, mode);}  in ft_seek_rel()
45 static int ft_unreadb(void * ft, int b) {  in ft_unreadb()  argument
46   return lsx_unreadb((sox_format_t *)ft, (unsigned)b);}  in ft_unreadb()
47 static uint32_t ft_filelength(void * ft) {  in ft_filelength()  argument
48   return (uint32_t)lsx_filelength((sox_format_t *)ft);}  in ft_filelength()
49 static int ft_is_seekable(void *ft) {  in ft_is_seekable()  argument
50   return ((sox_format_t *)ft)->seekable;}  in ft_is_seekable()
51 static int32_t ft_write_b_buf(void * ft, void * buf, int32_t len) {  in ft_write_b_buf()  argument
52   priv_t * p = (priv_t *)((sox_format_t *)ft)->priv;  in ft_write_b_buf()
55   return (int32_t)lsx_write_b_buf((sox_format_t *)ft, buf, (size_t)len);}  in ft_write_b_buf()
62 static int start_read(sox_format_t * ft)  in start_read()  argument
64   priv_t * p = (priv_t *)ft->priv;  in start_read()
67   p->codec = WavpackOpenFileInputEx(&io_fns, ft, NULL, msg, OPEN_NORMALIZE, 0);  in start_read()
69     lsx_fail_errno(ft, SOX_EHDR, "%s", msg);  in start_read()
72   ft->encoding.bits_per_sample = WavpackGetBytesPerSample(p->codec) << 3;  in start_read()
73   ft->signal.channels   = WavpackGetNumChannels(p->codec);  in start_read()
74 …if (WavpackGetSampleRate(p->codec) && ft->signal.rate && ft->signal.rate != WavpackGetSampleRate(p…  in start_read()
75     lsx_warn("`%s': overriding sample rate", ft->filename);  in start_read()
76   else ft->signal.rate = WavpackGetSampleRate(p->codec);  in start_read()
78   ft->signal.length = (uint64_t)WavpackGetNumSamples(p->codec) * ft->signal.channels;  in start_read()
79   ft->encoding.encoding = (WavpackGetMode(p->codec) & MODE_FLOAT)?  in start_read()
84 static size_t read_samples(sox_format_t * ft, sox_sample_t * buf, size_t len)  in read_samples()  argument
86   priv_t * p = (priv_t *)ft->priv;  in read_samples()
87 …size_t i, actual = WavpackUnpackSamples(p->codec, buf, (uint32_t) len / ft->signal.channels) * ft-…  in read_samples()
88   for (i = 0; i < actual; ++i) switch (ft->encoding.bits_per_sample) {  in read_samples()
93     case 32: buf[i] = ft->encoding.encoding == SOX_ENCODING_WAVPACKF?  in read_samples()
94       SOX_FLOAT_32BIT_TO_SAMPLE(*(float *)&buf[i], ft->clips) :  in read_samples()
101 static int stop_read(sox_format_t * ft)  in stop_read()  argument
103   priv_t * p = (priv_t *)ft->priv;  in stop_read()
108 static int start_write(sox_format_t * ft)  in start_write()  argument
110   priv_t * p = (priv_t *)ft->priv;  in start_write()
114   p->codec = WavpackOpenFileOutput(ft_write_b_buf, ft, NULL);  in start_write()
116     lsx_fail_errno(ft, SOX_ENOMEM, "WavPack error creating output instance");  in start_write()
120   config.bytes_per_sample  = ft->encoding.bits_per_sample >> 3;  in start_write()
121   config.bits_per_sample   = ft->encoding.bits_per_sample;  in start_write()
122   config.channel_mask      = ft->signal.channels == 1? 4 :  in start_write()
123       ft->signal.channels == 2? 3 : (1 << ft->signal.channels) - 1;  in start_write()
124   config.num_channels      = ft->signal.channels;  in start_write()
125   config.sample_rate       = (int32_t)(ft->signal.rate + .5);  in start_write()
127   size64 = ft->signal.length / ft->signal.channels;  in start_write()
129     lsx_fail_errno(ft, SOX_EHDR, "%s", WavpackGetErrorMessage(p->codec));  in start_write()
136 static size_t write_samples(sox_format_t * ft, const sox_sample_t * buf, size_t len)  in write_samples()  argument
138   priv_t * p = (priv_t *)ft->priv;  in write_samples()
143   for (i = 0; i < len; ++i) switch (ft->encoding.bits_per_sample) {  in write_samples()
145     case  8: obuf[i] = SOX_SAMPLE_TO_SIGNED_8BIT(buf[i], ft->clips); break;  in write_samples()
146     case 16: obuf[i] = SOX_SAMPLE_TO_SIGNED_16BIT(buf[i], ft->clips); break;  in write_samples()
147     case 24: obuf[i] = SOX_SAMPLE_TO_SIGNED_24BIT(buf[i], ft->clips) << 8;  in write_samples()
149     case 32: obuf[i] = ft->encoding.encoding == SOX_ENCODING_WAVPACKF?  in write_samples()
150       SOX_SAMPLE_TO_SIGNED_24BIT(*(float *)&buf[i], ft->clips) :  in write_samples()
151       SOX_SAMPLE_TO_SIGNED_32BIT(buf[i], ft->clips);  in write_samples()
154   result = WavpackPackSamples(p->codec, obuf, (uint32_t) len / ft->signal.channels);  in write_samples()
159 static int stop_write(sox_format_t * ft)  in stop_write()  argument
161   priv_t * p = (priv_t *)ft->priv;  in stop_write()
164     lsx_fail_errno(ft, SOX_EINVAL, "%s", WavpackGetErrorMessage(p->codec));  in stop_write()
167 …if (ft->seekable && WavpackGetNumSamples(p->codec) != WavpackGetSampleIndex(p->codec) && p->first_…  in stop_write()
169     lsx_rewind(ft);  in stop_write()
170     lsx_readchars(ft, buf, p->first_block_size);  in stop_write()
173       lsx_rewind(ft);  in stop_write()
174       lsx_writebuf(ft, buf, p->first_block_size);  in stop_write()
182 static int seek(sox_format_t * ft, uint64_t offset)  in seek()  argument
184   priv_t * p = (priv_t *)ft->priv;  in seek()
186 …return WavpackSeekSample(p->codec, (uint32_t) (offset / ft->signal.channels))? SOX_SUCCESS : SOX_E…  in seek()