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Diffstat (limited to 'lib/rbcodec/codecs/libwavpack/wavpack.h')
-rw-r--r-- | lib/rbcodec/codecs/libwavpack/wavpack.h | 447 |
1 files changed, 447 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libwavpack/wavpack.h b/lib/rbcodec/codecs/libwavpack/wavpack.h new file mode 100644 index 0000000000..b15a176f33 --- /dev/null +++ b/lib/rbcodec/codecs/libwavpack/wavpack.h | |||
@@ -0,0 +1,447 @@ | |||
1 | //////////////////////////////////////////////////////////////////////////// | ||
2 | // **** WAVPACK **** // | ||
3 | // Hybrid Lossless Wavefile Compressor // | ||
4 | // Copyright (c) 1998 - 2004 Conifer Software. // | ||
5 | // All Rights Reserved. // | ||
6 | // Distributed under the BSD Software License (see license.txt) // | ||
7 | //////////////////////////////////////////////////////////////////////////// | ||
8 | |||
9 | // wavpack.h | ||
10 | #ifdef CODEC | ||
11 | #include "codeclib.h" | ||
12 | #endif | ||
13 | #include <inttypes.h> | ||
14 | |||
15 | // This header file contains all the definitions required by WavPack. | ||
16 | |||
17 | typedef unsigned char uchar; | ||
18 | typedef unsigned short ushort; | ||
19 | #if 0 // unused and causing compiler errrors | ||
20 | typedef unsigned int uint; | ||
21 | #endif | ||
22 | |||
23 | #include <stdio.h> | ||
24 | |||
25 | #define FALSE 0 | ||
26 | #define TRUE 1 | ||
27 | |||
28 | ////////////////////////////// WavPack Header ///////////////////////////////// | ||
29 | |||
30 | // Note that this is the ONLY structure that is written to (or read from) | ||
31 | // WavPack 4.0 files, and is the preamble to every block in both the .wv | ||
32 | // and .wvc files. | ||
33 | |||
34 | typedef struct { | ||
35 | char ckID [4]; | ||
36 | uint32_t ckSize; | ||
37 | short version; | ||
38 | uchar track_no, index_no; | ||
39 | uint32_t total_samples, block_index, block_samples, flags, crc; | ||
40 | } WavpackHeader; | ||
41 | |||
42 | #define WavpackHeaderFormat "4LS2LLLLL" | ||
43 | |||
44 | // or-values for "flags" | ||
45 | |||
46 | #define BYTES_STORED 3 // 1-4 bytes/sample | ||
47 | #define MONO_FLAG 4 // not stereo | ||
48 | #define HYBRID_FLAG 8 // hybrid mode | ||
49 | #define JOINT_STEREO 0x10 // joint stereo | ||
50 | #define CROSS_DECORR 0x20 // no-delay cross decorrelation | ||
51 | #define HYBRID_SHAPE 0x40 // noise shape (hybrid mode only) | ||
52 | #define FLOAT_DATA 0x80 // ieee 32-bit floating point data | ||
53 | |||
54 | #define INT32_DATA 0x100 // special extended int handling | ||
55 | #define HYBRID_BITRATE 0x200 // bitrate noise (hybrid mode only) | ||
56 | #define HYBRID_BALANCE 0x400 // balance noise (hybrid stereo mode only) | ||
57 | |||
58 | #define INITIAL_BLOCK 0x800 // initial block of multichannel segment | ||
59 | #define FINAL_BLOCK 0x1000 // final block of multichannel segment | ||
60 | |||
61 | #define SHIFT_LSB 13 | ||
62 | #define SHIFT_MASK (0x1fL << SHIFT_LSB) | ||
63 | |||
64 | #define MAG_LSB 18 | ||
65 | #define MAG_MASK (0x1fL << MAG_LSB) | ||
66 | |||
67 | #define SRATE_LSB 23 | ||
68 | #define SRATE_MASK (0xfL << SRATE_LSB) | ||
69 | |||
70 | #define FALSE_STEREO 0x40000000 // block is stereo, but data is mono | ||
71 | |||
72 | #define IGNORED_FLAGS 0x18000000 // reserved, but ignore if encountered | ||
73 | #define NEW_SHAPING 0x20000000 // use IIR filter for negative shaping | ||
74 | #define UNKNOWN_FLAGS 0x80000000 // also reserved, but refuse decode if | ||
75 | // encountered | ||
76 | |||
77 | #define MONO_DATA (MONO_FLAG | FALSE_STEREO) | ||
78 | |||
79 | #define MIN_STREAM_VERS 0x402 // lowest stream version we'll decode | ||
80 | #define MAX_STREAM_VERS 0x410 // highest stream version we'll decode | ||
81 | #define CUR_STREAM_VERS 0x403 // stream version we are writing now | ||
82 | |||
83 | //////////////////////////// WavPack Metadata ///////////////////////////////// | ||
84 | |||
85 | // This is an internal representation of metadata. | ||
86 | |||
87 | typedef struct { | ||
88 | uchar temp_data [64]; | ||
89 | int32_t byte_length; | ||
90 | void *data; | ||
91 | uchar id; | ||
92 | } WavpackMetadata; | ||
93 | |||
94 | #define ID_OPTIONAL_DATA 0x20 | ||
95 | #define ID_ODD_SIZE 0x40 | ||
96 | #define ID_LARGE 0x80 | ||
97 | |||
98 | #define ID_DUMMY 0x0 | ||
99 | #define ID_ENCODER_INFO 0x1 | ||
100 | #define ID_DECORR_TERMS 0x2 | ||
101 | #define ID_DECORR_WEIGHTS 0x3 | ||
102 | #define ID_DECORR_SAMPLES 0x4 | ||
103 | #define ID_ENTROPY_VARS 0x5 | ||
104 | #define ID_HYBRID_PROFILE 0x6 | ||
105 | #define ID_SHAPING_WEIGHTS 0x7 | ||
106 | #define ID_FLOAT_INFO 0x8 | ||
107 | #define ID_INT32_INFO 0x9 | ||
108 | #define ID_WV_BITSTREAM 0xa | ||
109 | #define ID_WVC_BITSTREAM 0xb | ||
110 | #define ID_WVX_BITSTREAM 0xc | ||
111 | #define ID_CHANNEL_INFO 0xd | ||
112 | |||
113 | #define ID_RIFF_HEADER (ID_OPTIONAL_DATA | 0x1) | ||
114 | #define ID_RIFF_TRAILER (ID_OPTIONAL_DATA | 0x2) | ||
115 | #define ID_REPLAY_GAIN (ID_OPTIONAL_DATA | 0x3) | ||
116 | #define ID_CUESHEET (ID_OPTIONAL_DATA | 0x4) | ||
117 | #define ID_CONFIG_BLOCK (ID_OPTIONAL_DATA | 0x5) | ||
118 | #define ID_MD5_CHECKSUM (ID_OPTIONAL_DATA | 0x6) | ||
119 | #define ID_SAMPLE_RATE (ID_OPTIONAL_DATA | 0x7) | ||
120 | |||
121 | ///////////////////////// WavPack Configuration /////////////////////////////// | ||
122 | |||
123 | // This internal structure is used during encode to provide configuration to | ||
124 | // the encoding engine and during decoding to provide fle information back to | ||
125 | // the higher level functions. Not all fields are used in both modes. | ||
126 | |||
127 | typedef struct { | ||
128 | int bits_per_sample, bytes_per_sample; | ||
129 | int flags, num_channels, float_norm_exp; | ||
130 | uint32_t sample_rate, channel_mask; | ||
131 | } WavpackConfig; | ||
132 | |||
133 | #define CONFIG_BYTES_STORED 3 // 1-4 bytes/sample | ||
134 | #define CONFIG_MONO_FLAG 4 // not stereo | ||
135 | #define CONFIG_HYBRID_FLAG 8 // hybrid mode | ||
136 | #define CONFIG_JOINT_STEREO 0x10 // joint stereo | ||
137 | #define CONFIG_CROSS_DECORR 0x20 // no-delay cross decorrelation | ||
138 | #define CONFIG_HYBRID_SHAPE 0x40 // noise shape (hybrid mode only) | ||
139 | #define CONFIG_FLOAT_DATA 0x80 // ieee 32-bit floating point data | ||
140 | |||
141 | #define CONFIG_ADOBE_MODE 0x100 // "adobe" mode for 32-bit floats | ||
142 | #define CONFIG_FAST_FLAG 0x200 // fast mode | ||
143 | #define CONFIG_VERY_FAST_FLAG 0x400 // double fast | ||
144 | #define CONFIG_HIGH_FLAG 0x800 // high quality mode | ||
145 | #define CONFIG_VERY_HIGH_FLAG 0x1000 // double high (not used yet) | ||
146 | #define CONFIG_BITRATE_KBPS 0x2000 // bitrate is kbps, not bits / sample | ||
147 | #define CONFIG_AUTO_SHAPING 0x4000 // automatic noise shaping | ||
148 | #define CONFIG_SHAPE_OVERRIDE 0x8000 // shaping mode specified | ||
149 | #define CONFIG_JOINT_OVERRIDE 0x10000 // joint-stereo mode specified | ||
150 | #define CONFIG_COPY_TIME 0x20000 // copy file-time from source | ||
151 | #define CONFIG_CREATE_EXE 0x40000 // create executable (not yet) | ||
152 | #define CONFIG_CREATE_WVC 0x80000 // create correction file | ||
153 | #define CONFIG_OPTIMIZE_WVC 0x100000 // maximize bybrid compression | ||
154 | #define CONFIG_QUALITY_MODE 0x200000 // psychoacoustic quality mode | ||
155 | #define CONFIG_RAW_FLAG 0x400000 // raw mode (not implemented yet) | ||
156 | #define CONFIG_CALC_NOISE 0x800000 // calc noise in hybrid mode | ||
157 | #define CONFIG_LOSSY_MODE 0x1000000 // obsolete (for information) | ||
158 | #define CONFIG_EXTRA_MODE 0x2000000 // extra processing mode | ||
159 | #define CONFIG_SKIP_WVX 0x4000000 // no wvx stream w/ floats & big ints | ||
160 | #define CONFIG_MD5_CHECKSUM 0x8000000 // compute & store MD5 signature | ||
161 | #define CONFIG_QUIET_MODE 0x10000000 // don't report progress % | ||
162 | |||
163 | //////////////////////////////// WavPack Stream /////////////////////////////// | ||
164 | |||
165 | // This internal structure contains everything required to handle a WavPack | ||
166 | // "stream", which is defined as a stereo or mono stream of audio samples. For | ||
167 | // multichannel audio several of these would be required. Each stream contains | ||
168 | // pointers to hold a complete allocated block of WavPack data, although it's | ||
169 | // possible to decode WavPack blocks without buffering an entire block. | ||
170 | |||
171 | typedef int32_t (*read_stream)(void *, int32_t); | ||
172 | |||
173 | typedef struct bs { | ||
174 | uchar *buf, *end, *ptr; | ||
175 | void (*wrap)(struct bs *bs); | ||
176 | uint32_t file_bytes, sr; | ||
177 | int error, bc; | ||
178 | read_stream file; | ||
179 | } Bitstream; | ||
180 | |||
181 | #define MAX_NTERMS 16 | ||
182 | #define MAX_TERM 8 | ||
183 | |||
184 | struct decorr_pass { | ||
185 | short term, delta, weight_A, weight_B; | ||
186 | int32_t samples_A [MAX_TERM], samples_B [MAX_TERM]; | ||
187 | }; | ||
188 | |||
189 | struct entropy_data { | ||
190 | uint32_t median [3], slow_level, error_limit; | ||
191 | }; | ||
192 | |||
193 | struct words_data { | ||
194 | uint32_t bitrate_delta [2], bitrate_acc [2]; | ||
195 | uint32_t pend_data, holding_one, zeros_acc; | ||
196 | int holding_zero, pend_count; | ||
197 | struct entropy_data c [2]; | ||
198 | }; | ||
199 | |||
200 | typedef struct { | ||
201 | WavpackHeader wphdr; | ||
202 | Bitstream wvbits; | ||
203 | |||
204 | struct words_data w; | ||
205 | |||
206 | int num_terms, mute_error; | ||
207 | uint32_t sample_index, crc; | ||
208 | int32_t block_bytes_left; | ||
209 | |||
210 | uchar int32_sent_bits, int32_zeros, int32_ones, int32_dups; | ||
211 | uchar float_flags, float_shift, float_max_exp, float_norm_exp; | ||
212 | uchar *blockbuff, *blockend; | ||
213 | |||
214 | struct decorr_pass decorr_passes [MAX_NTERMS]; | ||
215 | |||
216 | } WavpackStream; | ||
217 | |||
218 | // flags for float_flags: | ||
219 | |||
220 | #define FLOAT_SHIFT_ONES 1 // bits left-shifted into float = '1' | ||
221 | #define FLOAT_SHIFT_SAME 2 // bits left-shifted into float are the same | ||
222 | #define FLOAT_SHIFT_SENT 4 // bits shifted into float are sent literally | ||
223 | #define FLOAT_ZEROS_SENT 8 // "zeros" are not all real zeros | ||
224 | #define FLOAT_NEG_ZEROS 0x10 // contains negative zeros | ||
225 | #define FLOAT_EXCEPTIONS 0x20 // contains exceptions (inf, nan, etc.) | ||
226 | |||
227 | /////////////////////////////// WavPack Context /////////////////////////////// | ||
228 | |||
229 | // This internal structure holds everything required to encode or decode WavPack | ||
230 | // files. It is recommended that direct access to this structure be minimized | ||
231 | // and the provided utilities used instead. | ||
232 | |||
233 | typedef struct { | ||
234 | WavpackStream stream; | ||
235 | WavpackConfig config; | ||
236 | |||
237 | uchar *wrapper_data; | ||
238 | int wrapper_bytes; | ||
239 | |||
240 | uchar read_buffer [1024]; | ||
241 | char error_message [80]; | ||
242 | |||
243 | read_stream infile; | ||
244 | uint32_t total_samples, crc_errors, first_flags; | ||
245 | int open_flags, norm_offset, reduced_channels, lossy_blocks; | ||
246 | |||
247 | } WavpackContext; | ||
248 | |||
249 | //////////////////////// function prototypes and macros ////////////////////// | ||
250 | |||
251 | #define CLEAR(destin) memset (&destin, 0, sizeof (destin)); | ||
252 | |||
253 | // bits.c | ||
254 | |||
255 | void bs_open_read (Bitstream *bs, uchar *buffer_start, uchar *buffer_end, read_stream file, uint32_t file_bytes); | ||
256 | void bs_open_write (Bitstream *bs, uchar *buffer_start, uchar *buffer_end); | ||
257 | uint32_t bs_close_write (Bitstream *bs); | ||
258 | |||
259 | #define bs_is_open(bs) ((bs)->ptr != NULL) | ||
260 | |||
261 | #define getbit(bs) ( \ | ||
262 | (((bs)->bc) ? \ | ||
263 | ((bs)->bc--, (bs)->sr & 1) : \ | ||
264 | (((++((bs)->ptr) != (bs)->end) ? (void) 0 : (bs)->wrap (bs)), (bs)->bc = 7, ((bs)->sr = *((bs)->ptr)) & 1) \ | ||
265 | ) ? \ | ||
266 | ((bs)->sr >>= 1, 1) : \ | ||
267 | ((bs)->sr >>= 1, 0) \ | ||
268 | ) | ||
269 | |||
270 | #define getbits(value, nbits, bs) { \ | ||
271 | while ((nbits) > (bs)->bc) { \ | ||
272 | if (++((bs)->ptr) == (bs)->end) (bs)->wrap (bs); \ | ||
273 | (bs)->sr |= (int32_t)*((bs)->ptr) << (bs)->bc; \ | ||
274 | (bs)->bc += 8; \ | ||
275 | } \ | ||
276 | *(value) = (bs)->sr; \ | ||
277 | if ((bs)->bc > 32) { \ | ||
278 | (bs)->bc -= (nbits); \ | ||
279 | (bs)->sr = *((bs)->ptr) >> (8 - (bs)->bc); \ | ||
280 | } \ | ||
281 | else { \ | ||
282 | (bs)->bc -= (nbits); \ | ||
283 | (bs)->sr >>= (nbits); \ | ||
284 | } \ | ||
285 | } | ||
286 | |||
287 | #define putbit(bit, bs) { if (bit) (bs)->sr |= (1 << (bs)->bc); \ | ||
288 | if (++((bs)->bc) == 8) { \ | ||
289 | *((bs)->ptr) = (bs)->sr; \ | ||
290 | (bs)->sr = (bs)->bc = 0; \ | ||
291 | if (++((bs)->ptr) == (bs)->end) (bs)->wrap (bs); \ | ||
292 | }} | ||
293 | |||
294 | #define putbit_0(bs) { \ | ||
295 | if (++((bs)->bc) == 8) { \ | ||
296 | *((bs)->ptr) = (bs)->sr; \ | ||
297 | (bs)->sr = (bs)->bc = 0; \ | ||
298 | if (++((bs)->ptr) == (bs)->end) (bs)->wrap (bs); \ | ||
299 | }} | ||
300 | |||
301 | #define putbit_1(bs) { (bs)->sr |= (1 << (bs)->bc); \ | ||
302 | if (++((bs)->bc) == 8) { \ | ||
303 | *((bs)->ptr) = (bs)->sr; \ | ||
304 | (bs)->sr = (bs)->bc = 0; \ | ||
305 | if (++((bs)->ptr) == (bs)->end) (bs)->wrap (bs); \ | ||
306 | }} | ||
307 | |||
308 | #define putbits(value, nbits, bs) { \ | ||
309 | (bs)->sr |= (int32_t)(value) << (bs)->bc; \ | ||
310 | if (((bs)->bc += (nbits)) >= 8) \ | ||
311 | do { \ | ||
312 | *((bs)->ptr) = (bs)->sr; \ | ||
313 | (bs)->sr >>= 8; \ | ||
314 | if (++((bs)->ptr) == (bs)->end) (bs)->wrap (bs); \ | ||
315 | } while (((bs)->bc -= 8) >= 8); \ | ||
316 | } | ||
317 | |||
318 | void little_endian_to_native (void *data, char *format); | ||
319 | void native_to_little_endian (void *data, char *format); | ||
320 | |||
321 | // These macros implement the weight application and update operations | ||
322 | // that are at the heart of the decorrelation loops. Note that when there | ||
323 | // are several alternative versions of the same macro (marked with PERFCOND) | ||
324 | // then the versions are functionally equivalent with respect to WavPack | ||
325 | // decoding and the user should choose the one that provides the best | ||
326 | // performance. This may be easier to check when NOT using the assembly | ||
327 | // language optimizations. | ||
328 | |||
329 | #if 1 // PERFCOND | ||
330 | #define apply_weight_i(weight, sample) ((weight * sample + 512) >> 10) | ||
331 | #else | ||
332 | #define apply_weight_i(weight, sample) ((((weight * sample) >> 8) + 2) >> 2) | ||
333 | #endif | ||
334 | |||
335 | #define apply_weight_f(weight, sample) (((((sample & 0xffff) * weight) >> 9) + \ | ||
336 | (((sample & ~0xffff) >> 9) * weight) + 1) >> 1) | ||
337 | |||
338 | #if 1 // PERFCOND | ||
339 | #define apply_weight(weight, sample) (sample != (short) sample ? \ | ||
340 | apply_weight_f (weight, sample) : apply_weight_i (weight, sample)) | ||
341 | #else | ||
342 | #define apply_weight(weight, sample) ((int32_t)((weight * (int64_t) sample + 512) >> 10)) | ||
343 | #endif | ||
344 | |||
345 | #if 0 // PERFCOND | ||
346 | #define update_weight(weight, delta, source, result) \ | ||
347 | if (source && result) { int32_t s = (int32_t) (source ^ result) >> 31; weight = (delta ^ s) + (weight - s); } | ||
348 | #elif 1 | ||
349 | #define update_weight(weight, delta, source, result) \ | ||
350 | if (source && result) weight += (((source ^ result) >> 30) | 1) * delta | ||
351 | #else | ||
352 | #define update_weight(weight, delta, source, result) \ | ||
353 | if (source && result) (source ^ result) < 0 ? (weight -= delta) : (weight += delta) | ||
354 | #endif | ||
355 | |||
356 | #define update_weight_clip(weight, delta, source, result) \ | ||
357 | if (source && result && ((source ^ result) < 0 ? (weight -= delta) < -1024 : (weight += delta) > 1024)) \ | ||
358 | weight = weight < 0 ? -1024 : 1024 | ||
359 | |||
360 | // unpack.c | ||
361 | |||
362 | int unpack_init (WavpackContext *wpc); | ||
363 | int init_wv_bitstream (WavpackContext *wpc, WavpackMetadata *wpmd); | ||
364 | int read_decorr_terms (WavpackStream *wps, WavpackMetadata *wpmd); | ||
365 | int read_decorr_weights (WavpackStream *wps, WavpackMetadata *wpmd); | ||
366 | int read_decorr_samples (WavpackStream *wps, WavpackMetadata *wpmd); | ||
367 | int read_float_info (WavpackStream *wps, WavpackMetadata *wpmd); | ||
368 | int read_int32_info (WavpackStream *wps, WavpackMetadata *wpmd); | ||
369 | int read_channel_info (WavpackContext *wpc, WavpackMetadata *wpmd); | ||
370 | int read_config_info (WavpackContext *wpc, WavpackMetadata *wpmd); | ||
371 | int read_sample_rate (WavpackContext *wpc, WavpackMetadata *wpmd); | ||
372 | int32_t unpack_samples (WavpackContext *wpc, int32_t *buffer, uint32_t sample_count); | ||
373 | int check_crc_error (WavpackContext *wpc); | ||
374 | |||
375 | // pack.c | ||
376 | |||
377 | void pack_init (WavpackContext *wpc); | ||
378 | int pack_start_block (WavpackContext *wpc); | ||
379 | int pack_samples (WavpackContext *wpc, int32_t *buffer, uint32_t sample_count); | ||
380 | int pack_finish_block (WavpackContext *wpc); | ||
381 | |||
382 | // metadata.c stuff | ||
383 | |||
384 | int read_metadata_buff (WavpackContext *wpc, WavpackMetadata *wpmd); | ||
385 | int process_metadata (WavpackContext *wpc, WavpackMetadata *wpmd); | ||
386 | int copy_metadata (WavpackMetadata *wpmd, uchar *buffer_start, uchar *buffer_end); | ||
387 | void free_metadata (WavpackMetadata *wpmd); | ||
388 | |||
389 | // words.c stuff | ||
390 | |||
391 | void init_words (WavpackStream *wps); | ||
392 | int read_entropy_vars (WavpackStream *wps, WavpackMetadata *wpmd); | ||
393 | void write_entropy_vars (WavpackStream *wps, WavpackMetadata *wpmd); | ||
394 | int read_hybrid_profile (WavpackStream *wps, WavpackMetadata *wpmd); | ||
395 | int32_t get_words (int32_t *buffer, int nsamples, uint32_t flags, | ||
396 | struct words_data *w, Bitstream *bs); | ||
397 | void send_word_lossless (int32_t value, int chan, | ||
398 | struct words_data *w, Bitstream *bs); | ||
399 | void send_words (int32_t *buffer, int nsamples, uint32_t flags, | ||
400 | struct words_data *w, Bitstream *bs); | ||
401 | void flush_word (struct words_data *w, Bitstream *bs); | ||
402 | int log2s (int32_t value); | ||
403 | int32_t exp2s (int log); | ||
404 | signed char store_weight (int weight); | ||
405 | int restore_weight (signed char weight); | ||
406 | |||
407 | #define WORD_EOF (1L << 31) | ||
408 | |||
409 | // float.c | ||
410 | |||
411 | int read_float_info (WavpackStream *wps, WavpackMetadata *wpmd); | ||
412 | void float_values (WavpackStream *wps, int32_t *values, int32_t num_values); | ||
413 | void float_normalize (int32_t *values, int32_t num_values, int delta_exp); | ||
414 | |||
415 | // wputils.c | ||
416 | |||
417 | WavpackContext *WavpackOpenFileInput (read_stream infile, char *error); | ||
418 | |||
419 | int WavpackGetMode (WavpackContext *wpc); | ||
420 | |||
421 | #define MODE_WVC 0x1 | ||
422 | #define MODE_LOSSLESS 0x2 | ||
423 | #define MODE_HYBRID 0x4 | ||
424 | #define MODE_FLOAT 0x8 | ||
425 | #define MODE_VALID_TAG 0x10 | ||
426 | #define MODE_HIGH 0x20 | ||
427 | #define MODE_FAST 0x40 | ||
428 | |||
429 | uint32_t WavpackUnpackSamples (WavpackContext *wpc, int32_t *buffer, uint32_t samples); | ||
430 | uint32_t WavpackGetNumSamples (WavpackContext *wpc); | ||
431 | uint32_t WavpackGetSampleIndex (WavpackContext *wpc); | ||
432 | int WavpackGetNumErrors (WavpackContext *wpc); | ||
433 | int WavpackLossyBlocks (WavpackContext *wpc); | ||
434 | uint32_t WavpackGetSampleRate (WavpackContext *wpc); | ||
435 | int WavpackGetBitsPerSample (WavpackContext *wpc); | ||
436 | int WavpackGetBytesPerSample (WavpackContext *wpc); | ||
437 | int WavpackGetNumChannels (WavpackContext *wpc); | ||
438 | int WavpackGetReducedChannels (WavpackContext *wpc); | ||
439 | WavpackContext *WavpackOpenFileOutput (void); | ||
440 | int WavpackSetConfiguration (WavpackContext *wpc, WavpackConfig *config, uint32_t total_samples); | ||
441 | void WavpackAddWrapper (WavpackContext *wpc, void *data, uint32_t bcount); | ||
442 | int WavpackStartBlock (WavpackContext *wpc, uchar *begin, uchar *end); | ||
443 | int WavpackPackSamples (WavpackContext *wpc, int32_t *sample_buffer, uint32_t sample_count); | ||
444 | uint32_t WavpackFinishBlock (WavpackContext *wpc); | ||
445 | void WavpackUpdateNumSamples (WavpackContext *wpc, void *first_block); | ||
446 | void *WavpackGetWrapperLocation (void *first_block); | ||
447 | |||