diff options
Diffstat (limited to 'src/engine/external/wavpack/metadata.c')
| -rw-r--r-- | src/engine/external/wavpack/metadata.c | 210 |
1 files changed, 105 insertions, 105 deletions
diff --git a/src/engine/external/wavpack/metadata.c b/src/engine/external/wavpack/metadata.c index 578b17f9..6a19ac9b 100644 --- a/src/engine/external/wavpack/metadata.c +++ b/src/engine/external/wavpack/metadata.c @@ -1,105 +1,105 @@ -//////////////////////////////////////////////////////////////////////////// -// **** WAVPACK **** // -// Hybrid Lossless Wavefile Compressor // -// Copyright (c) 1998 - 2006 Conifer Software. // -// All Rights Reserved. // -// Distributed under the BSD Software License (see license.txt) // -//////////////////////////////////////////////////////////////////////////// - -// metadata.c - -// This module handles the metadata structure introduced in WavPack 4.0 - -#include "wavpack.h" - -int read_metadata_buff (WavpackContext *wpc, WavpackMetadata *wpmd) -{ - uchar tchar; - - if (!wpc->infile (&wpmd->id, 1) || !wpc->infile (&tchar, 1)) - return FALSE; - - wpmd->byte_length = tchar << 1; - - if (wpmd->id & ID_LARGE) { - wpmd->id &= ~ID_LARGE; - - if (!wpc->infile (&tchar, 1)) - return FALSE; - - wpmd->byte_length += (int32_t) tchar << 9; - - if (!wpc->infile (&tchar, 1)) - return FALSE; - - wpmd->byte_length += (int32_t) tchar << 17; - } - - if (wpmd->id & ID_ODD_SIZE) { - wpmd->id &= ~ID_ODD_SIZE; - wpmd->byte_length--; - } - - if (wpmd->byte_length && wpmd->byte_length <= sizeof (wpc->read_buffer)) { - uint32_t bytes_to_read = wpmd->byte_length + (wpmd->byte_length & 1); - - if (wpc->infile (wpc->read_buffer, bytes_to_read) != (int32_t) bytes_to_read) { - wpmd->data = NULL; - return FALSE; - } - - wpmd->data = wpc->read_buffer; - } - else - wpmd->data = NULL; - - return TRUE; -} - -int process_metadata (WavpackContext *wpc, WavpackMetadata *wpmd) -{ - WavpackStream *wps = &wpc->stream; - - switch (wpmd->id) { - case ID_DUMMY: - return TRUE; - - case ID_DECORR_TERMS: - return read_decorr_terms (wps, wpmd); - - case ID_DECORR_WEIGHTS: - return read_decorr_weights (wps, wpmd); - - case ID_DECORR_SAMPLES: - return read_decorr_samples (wps, wpmd); - - case ID_ENTROPY_VARS: - return read_entropy_vars (wps, wpmd); - - case ID_HYBRID_PROFILE: - return read_hybrid_profile (wps, wpmd); - - case ID_FLOAT_INFO: - return read_float_info (wps, wpmd); - - case ID_INT32_INFO: - return read_int32_info (wps, wpmd); - - case ID_CHANNEL_INFO: - return read_channel_info (wpc, wpmd); - - case ID_CONFIG_BLOCK: - return read_config_info (wpc, wpmd); - - case ID_WV_BITSTREAM: - return init_wv_bitstream (wpc, wpmd); - - case ID_SHAPING_WEIGHTS: - case ID_WVC_BITSTREAM: - case ID_WVX_BITSTREAM: - return TRUE; - - default: - return (wpmd->id & ID_OPTIONAL_DATA) ? TRUE : FALSE; - } -} +//////////////////////////////////////////////////////////////////////////// +// **** WAVPACK **** // +// Hybrid Lossless Wavefile Compressor // +// Copyright (c) 1998 - 2006 Conifer Software. // +// All Rights Reserved. // +// Distributed under the BSD Software License (see license.txt) // +//////////////////////////////////////////////////////////////////////////// + +// metadata.c + +// This module handles the metadata structure introduced in WavPack 4.0 + +#include "wavpack.h" + +int read_metadata_buff (WavpackContext *wpc, WavpackMetadata *wpmd) +{ + uchar tchar; + + if (!wpc->infile (&wpmd->id, 1) || !wpc->infile (&tchar, 1)) + return FALSE; + + wpmd->byte_length = tchar << 1; + + if (wpmd->id & ID_LARGE) { + wpmd->id &= ~ID_LARGE; + + if (!wpc->infile (&tchar, 1)) + return FALSE; + + wpmd->byte_length += (int32_t) tchar << 9; + + if (!wpc->infile (&tchar, 1)) + return FALSE; + + wpmd->byte_length += (int32_t) tchar << 17; + } + + if (wpmd->id & ID_ODD_SIZE) { + wpmd->id &= ~ID_ODD_SIZE; + wpmd->byte_length--; + } + + if (wpmd->byte_length && wpmd->byte_length <= sizeof (wpc->read_buffer)) { + uint32_t bytes_to_read = wpmd->byte_length + (wpmd->byte_length & 1); + + if (wpc->infile (wpc->read_buffer, bytes_to_read) != (int32_t) bytes_to_read) { + wpmd->data = NULL; + return FALSE; + } + + wpmd->data = wpc->read_buffer; + } + else + wpmd->data = NULL; + + return TRUE; +} + +int process_metadata (WavpackContext *wpc, WavpackMetadata *wpmd) +{ + WavpackStream *wps = &wpc->stream; + + switch (wpmd->id) { + case ID_DUMMY: + return TRUE; + + case ID_DECORR_TERMS: + return read_decorr_terms (wps, wpmd); + + case ID_DECORR_WEIGHTS: + return read_decorr_weights (wps, wpmd); + + case ID_DECORR_SAMPLES: + return read_decorr_samples (wps, wpmd); + + case ID_ENTROPY_VARS: + return read_entropy_vars (wps, wpmd); + + case ID_HYBRID_PROFILE: + return read_hybrid_profile (wps, wpmd); + + case ID_FLOAT_INFO: + return read_float_info (wps, wpmd); + + case ID_INT32_INFO: + return read_int32_info (wps, wpmd); + + case ID_CHANNEL_INFO: + return read_channel_info (wpc, wpmd); + + case ID_CONFIG_BLOCK: + return read_config_info (wpc, wpmd); + + case ID_WV_BITSTREAM: + return init_wv_bitstream (wpc, wpmd); + + case ID_SHAPING_WEIGHTS: + case ID_WVC_BITSTREAM: + case ID_WVX_BITSTREAM: + return TRUE; + + default: + return (wpmd->id & ID_OPTIONAL_DATA) ? TRUE : FALSE; + } +} |