diff options
Diffstat (limited to 'src/engine/external/wavpack')
| -rw-r--r-- | src/engine/external/wavpack/wavpack.h | 198 |
1 files changed, 99 insertions, 99 deletions
diff --git a/src/engine/external/wavpack/wavpack.h b/src/engine/external/wavpack/wavpack.h index 7c260586..29e6af75 100644 --- a/src/engine/external/wavpack/wavpack.h +++ b/src/engine/external/wavpack/wavpack.h @@ -1,16 +1,16 @@ -//////////////////////////////////////////////////////////////////////////// -// **** WAVPACK **** // -// Hybrid Lossless Wavefile Compressor // -// Copyright (c) 1998 - 2004 Conifer Software. // -// All Rights Reserved. // -// Distributed under the BSD Software License (see license.txt) // -//////////////////////////////////////////////////////////////////////////// +/*////////////////////////////////////////////////////////////////////////// */ +/* **** WAVPACK **** // */ +/* Hybrid Lossless Wavefile Compressor // */ +/* Copyright (c) 1998 - 2004 Conifer Software. // */ +/* All Rights Reserved. // */ +/* Distributed under the BSD Software License (see license.txt) // */ +/*////////////////////////////////////////////////////////////////////////// */ -// wavpack.h +/* wavpack.h */ #include <sys/types.h> -// This header file contains all the definitions required by WavPack. +/* This header file contains all the definitions required by WavPack. */ #ifdef __BORLANDC__ typedef unsigned long uint32_t; @@ -37,11 +37,11 @@ typedef unsigned int uint; #define FALSE 0 #define TRUE 1 -////////////////////////////// WavPack Header ///////////////////////////////// +/*//////////////////////////// WavPack Header ///////////////////////////////// */ -// Note that this is the ONLY structure that is written to (or read from) -// WavPack 4.0 files, and is the preamble to every block in both the .wv -// and .wvc files. +/* Note that this is the ONLY structure that is written to (or read from) */ +/* WavPack 4.0 files, and is the preamble to every block in both the .wv */ +/* and .wvc files. */ typedef struct { char ckID [4]; @@ -53,22 +53,22 @@ typedef struct { #define WavpackHeaderFormat "4LS2LLLLL" -// or-values for "flags" +/* or-values for "flags" */ -#define BYTES_STORED 3 // 1-4 bytes/sample -#define MONO_FLAG 4 // not stereo -#define HYBRID_FLAG 8 // hybrid mode -#define JOINT_STEREO 0x10 // joint stereo -#define CROSS_DECORR 0x20 // no-delay cross decorrelation -#define HYBRID_SHAPE 0x40 // noise shape (hybrid mode only) -#define FLOAT_DATA 0x80 // ieee 32-bit floating point data +#define BYTES_STORED 3 /* 1-4 bytes/sample */ +#define MONO_FLAG 4 /* not stereo */ +#define HYBRID_FLAG 8 /* hybrid mode */ +#define JOINT_STEREO 0x10 /* joint stereo */ +#define CROSS_DECORR 0x20 /* no-delay cross decorrelation */ +#define HYBRID_SHAPE 0x40 /* noise shape (hybrid mode only) */ +#define FLOAT_DATA 0x80 /* ieee 32-bit floating point data */ -#define INT32_DATA 0x100 // special extended int handling -#define HYBRID_BITRATE 0x200 // bitrate noise (hybrid mode only) -#define HYBRID_BALANCE 0x400 // balance noise (hybrid stereo mode only) +#define INT32_DATA 0x100 /* special extended int handling */ +#define HYBRID_BITRATE 0x200 /* bitrate noise (hybrid mode only) */ +#define HYBRID_BALANCE 0x400 /* balance noise (hybrid stereo mode only) */ -#define INITIAL_BLOCK 0x800 // initial block of multichannel segment -#define FINAL_BLOCK 0x1000 // final block of multichannel segment +#define INITIAL_BLOCK 0x800 /* initial block of multichannel segment */ +#define FINAL_BLOCK 0x1000 /* final block of multichannel segment */ #define SHIFT_LSB 13 #define SHIFT_MASK (0x1fL << SHIFT_LSB) @@ -79,21 +79,21 @@ typedef struct { #define SRATE_LSB 23 #define SRATE_MASK (0xfL << SRATE_LSB) -#define FALSE_STEREO 0x40000000 // block is stereo, but data is mono +#define FALSE_STEREO 0x40000000 /* block is stereo, but data is mono */ -#define IGNORED_FLAGS 0x18000000 // reserved, but ignore if encountered -#define NEW_SHAPING 0x20000000 // use IIR filter for negative shaping -#define UNKNOWN_FLAGS 0x80000000 // also reserved, but refuse decode if - // encountered +#define IGNORED_FLAGS 0x18000000 /* reserved, but ignore if encountered */ +#define NEW_SHAPING 0x20000000 /* use IIR filter for negative shaping */ +#define UNKNOWN_FLAGS 0x80000000 /* also reserved, but refuse decode if */ + /* encountered */ #define MONO_DATA (MONO_FLAG | FALSE_STEREO) -#define MIN_STREAM_VERS 0x402 // lowest stream version we'll decode -#define MAX_STREAM_VERS 0x410 // highest stream version we'll decode +#define MIN_STREAM_VERS 0x402 /* lowest stream version we'll decode */ +#define MAX_STREAM_VERS 0x410 /* highest stream version we'll decode */ -//////////////////////////// WavPack Metadata ///////////////////////////////// +/*////////////////////////// WavPack Metadata ///////////////////////////////// */ -// This is an internal representation of metadata. +/* This is an internal representation of metadata. */ typedef struct { int32_t byte_length; @@ -127,11 +127,11 @@ typedef struct { #define ID_CONFIG_BLOCK (ID_OPTIONAL_DATA | 0x5) #define ID_MD5_CHECKSUM (ID_OPTIONAL_DATA | 0x6) -///////////////////////// WavPack Configuration /////////////////////////////// +/*/////////////////////// WavPack Configuration /////////////////////////////// */ -// This internal structure is used during encode to provide configuration to -// the encoding engine and during decoding to provide fle information back to -// the higher level functions. Not all fields are used in both modes. +/* This internal structure is used during encode to provide configuration to */ +/* the encoding engine and during decoding to provide fle information back to */ +/* the higher level functions. Not all fields are used in both modes. */ typedef struct { int bits_per_sample, bytes_per_sample; @@ -139,38 +139,38 @@ typedef struct { uint32_t flags, sample_rate, channel_mask; } WavpackConfig; -#define CONFIG_BYTES_STORED 3 // 1-4 bytes/sample -#define CONFIG_MONO_FLAG 4 // not stereo -#define CONFIG_HYBRID_FLAG 8 // hybrid mode -#define CONFIG_JOINT_STEREO 0x10 // joint stereo -#define CONFIG_CROSS_DECORR 0x20 // no-delay cross decorrelation -#define CONFIG_HYBRID_SHAPE 0x40 // noise shape (hybrid mode only) -#define CONFIG_FLOAT_DATA 0x80 // ieee 32-bit floating point data - -#define CONFIG_FAST_FLAG 0x200 // fast mode -#define CONFIG_HIGH_FLAG 0x800 // high quality mode -#define CONFIG_VERY_HIGH_FLAG 0x1000 // very high -#define CONFIG_BITRATE_KBPS 0x2000 // bitrate is kbps, not bits / sample -#define CONFIG_AUTO_SHAPING 0x4000 // automatic noise shaping -#define CONFIG_SHAPE_OVERRIDE 0x8000 // shaping mode specified -#define CONFIG_JOINT_OVERRIDE 0x10000 // joint-stereo mode specified -#define CONFIG_CREATE_EXE 0x40000 // create executable -#define CONFIG_CREATE_WVC 0x80000 // create correction file -#define CONFIG_OPTIMIZE_WVC 0x100000 // maximize bybrid compression -#define CONFIG_CALC_NOISE 0x800000 // calc noise in hybrid mode -#define CONFIG_LOSSY_MODE 0x1000000 // obsolete (for information) -#define CONFIG_EXTRA_MODE 0x2000000 // extra processing mode -#define CONFIG_SKIP_WVX 0x4000000 // no wvx stream w/ floats & big ints -#define CONFIG_MD5_CHECKSUM 0x8000000 // compute & store MD5 signature -#define CONFIG_OPTIMIZE_MONO 0x80000000 // optimize for mono streams posing as stereo - -//////////////////////////////// WavPack Stream /////////////////////////////// - -// This internal structure contains everything required to handle a WavPack -// "stream", which is defined as a stereo or mono stream of audio samples. For -// multichannel audio several of these would be required. Each stream contains -// pointers to hold a complete allocated block of WavPack data, although it's -// possible to decode WavPack blocks without buffering an entire block. +#define CONFIG_BYTES_STORED 3 /* 1-4 bytes/sample */ +#define CONFIG_MONO_FLAG 4 /* not stereo */ +#define CONFIG_HYBRID_FLAG 8 /* hybrid mode */ +#define CONFIG_JOINT_STEREO 0x10 /* joint stereo */ +#define CONFIG_CROSS_DECORR 0x20 /* no-delay cross decorrelation */ +#define CONFIG_HYBRID_SHAPE 0x40 /* noise shape (hybrid mode only) */ +#define CONFIG_FLOAT_DATA 0x80 /* ieee 32-bit floating point data */ + +#define CONFIG_FAST_FLAG 0x200 /* fast mode */ +#define CONFIG_HIGH_FLAG 0x800 /* high quality mode */ +#define CONFIG_VERY_HIGH_FLAG 0x1000 /* very high */ +#define CONFIG_BITRATE_KBPS 0x2000 /* bitrate is kbps, not bits / sample */ +#define CONFIG_AUTO_SHAPING 0x4000 /* automatic noise shaping */ +#define CONFIG_SHAPE_OVERRIDE 0x8000 /* shaping mode specified */ +#define CONFIG_JOINT_OVERRIDE 0x10000 /* joint-stereo mode specified */ +#define CONFIG_CREATE_EXE 0x40000 /* create executable */ +#define CONFIG_CREATE_WVC 0x80000 /* create correction file */ +#define CONFIG_OPTIMIZE_WVC 0x100000 /* maximize bybrid compression */ +#define CONFIG_CALC_NOISE 0x800000 /* calc noise in hybrid mode */ +#define CONFIG_LOSSY_MODE 0x1000000 /* obsolete (for information) */ +#define CONFIG_EXTRA_MODE 0x2000000 /* extra processing mode */ +#define CONFIG_SKIP_WVX 0x4000000 /* no wvx stream w/ floats & big ints */ +#define CONFIG_MD5_CHECKSUM 0x8000000 /* compute & store MD5 signature */ +#define CONFIG_OPTIMIZE_MONO 0x80000000 /* optimize for mono streams posing as stereo */ + +/*////////////////////////////// WavPack Stream /////////////////////////////// */ + +/* This internal structure contains everything required to handle a WavPack */ +/* "stream", which is defined as a stereo or mono stream of audio samples. For */ +/* multichannel audio several of these would be required. Each stream contains */ +/* pointers to hold a complete allocated block of WavPack data, although it's */ +/* possible to decode WavPack blocks without buffering an entire block. */ typedef int32_t (*read_stream)(void *, int32_t); @@ -217,20 +217,20 @@ typedef struct { } WavpackStream; -// flags for float_flags: +/* flags for float_flags: */ -#define FLOAT_SHIFT_ONES 1 // bits left-shifted into float = '1' -#define FLOAT_SHIFT_SAME 2 // bits left-shifted into float are the same -#define FLOAT_SHIFT_SENT 4 // bits shifted into float are sent literally -#define FLOAT_ZEROS_SENT 8 // "zeros" are not all real zeros -#define FLOAT_NEG_ZEROS 0x10 // contains negative zeros -#define FLOAT_EXCEPTIONS 0x20 // contains exceptions (inf, nan, etc.) +#define FLOAT_SHIFT_ONES 1 /* bits left-shifted into float = '1' */ +#define FLOAT_SHIFT_SAME 2 /* bits left-shifted into float are the same */ +#define FLOAT_SHIFT_SENT 4 /* bits shifted into float are sent literally */ +#define FLOAT_ZEROS_SENT 8 /* "zeros" are not all real zeros */ +#define FLOAT_NEG_ZEROS 0x10 /* contains negative zeros */ +#define FLOAT_EXCEPTIONS 0x20 /* contains exceptions (inf, nan, etc.) */ -/////////////////////////////// WavPack Context /////////////////////////////// +/*///////////////////////////// WavPack Context /////////////////////////////// */ -// This internal structure holds everything required to encode or decode WavPack -// files. It is recommended that direct access to this structure be minimized -// and the provided utilities used instead. +/* This internal structure holds everything required to encode or decode WavPack */ +/* files. It is recommended that direct access to this structure be minimized */ +/* and the provided utilities used instead. */ typedef struct { WavpackConfig config; @@ -245,11 +245,11 @@ typedef struct { } WavpackContext; -//////////////////////// function prototypes and macros ////////////////////// +/*////////////////////// function prototypes and macros ////////////////////// */ #define CLEAR(destin) memset (&destin, 0, sizeof (destin)); -// bits.c +/* bits.c */ void bs_open_read (Bitstream *bs, uchar *buffer_start, uchar *buffer_end, read_stream file, uint32_t file_bytes); @@ -284,15 +284,15 @@ void bs_open_read (Bitstream *bs, uchar *buffer_start, uchar *buffer_end, read_s void little_endian_to_native (void *data, char *format); void native_to_little_endian (void *data, char *format); -// These macros implement the weight application and update operations -// that are at the heart of the decorrelation loops. Note that when there -// are several alternative versions of the same macro (marked with PERFCOND) -// then the versions are functionally equivalent with respect to WavPack -// decoding and the user should choose the one that provides the best -// performance. This may be easier to check when NOT using the assembly -// language optimizations. +/* These macros implement the weight application and update operations */ +/* that are at the heart of the decorrelation loops. Note that when there */ +/* are several alternative versions of the same macro (marked with PERFCOND) */ +/* then the versions are functionally equivalent with respect to WavPack */ +/* decoding and the user should choose the one that provides the best */ +/* performance. This may be easier to check when NOT using the assembly */ +/* language optimizations. */ -#if 1 // PERFCOND +#if 1 /* PERFCOND */ #define apply_weight_i(weight, sample) ((weight * sample + 512) >> 10) #else #define apply_weight_i(weight, sample) ((((weight * sample) >> 8) + 2) >> 2) @@ -301,14 +301,14 @@ void native_to_little_endian (void *data, char *format); #define apply_weight_f(weight, sample) (((((sample & 0xffffL) * weight) >> 9) + \ (((sample & ~0xffffL) >> 9) * weight) + 1) >> 1) -#if 1 // PERFCOND +#if 1 /* PERFCOND */ #define apply_weight(weight, sample) (sample != (short) sample ? \ apply_weight_f (weight, sample) : apply_weight_i (weight, sample)) #else #define apply_weight(weight, sample) ((int32_t)((weight * (int64_t) sample + 512) >> 10)) #endif -#if 0 // PERFCOND +#if 0 /* PERFCOND */ #define update_weight(weight, delta, source, result) \ if (source && result) { int32_t s = (int32_t) (source ^ result) >> 31; weight = (delta ^ s) + (weight - s); } #elif 1 @@ -323,7 +323,7 @@ void native_to_little_endian (void *data, char *format); if (source && result && ((source ^ result) < 0 ? (weight -= delta) < -1024 : (weight += delta) > 1024)) \ weight = weight < 0 ? -1024 : 1024 -// unpack.c +/* unpack.c */ int unpack_init (WavpackContext *wpc); int init_wv_bitstream (WavpackContext *wpc, WavpackMetadata *wpmd); @@ -337,12 +337,12 @@ int read_config_info (WavpackContext *wpc, WavpackMetadata *wpmd); int32_t unpack_samples (WavpackContext *wpc, int32_t *buffer, uint32_t sample_count); int check_crc_error (WavpackContext *wpc); -// metadata.c stuff +/* metadata.c stuff */ int read_metadata_buff (WavpackContext *wpc, WavpackMetadata *wpmd); int process_metadata (WavpackContext *wpc, WavpackMetadata *wpmd); -// words.c stuff +/* words.c stuff */ int read_entropy_vars (WavpackStream *wps, WavpackMetadata *wpmd); int read_hybrid_profile (WavpackStream *wps, WavpackMetadata *wpmd); @@ -353,12 +353,12 @@ int restore_weight (signed char weight); #define WORD_EOF (1L << 31) -// float.c +/* float.c */ int read_float_info (WavpackStream *wps, WavpackMetadata *wpmd); void float_values (WavpackStream *wps, int32_t *values, int32_t num_values); -// wputils.c +/* wputils.c */ WavpackContext *WavpackOpenFileInput (read_stream infile, char *error); |