src/libFLAC/stream_encoder_framing.c

   1 /* libFLAC - Free Lossless Audio Codec library
   2  * Copyright (C) 2000,2001,2002  Josh Coalson
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA  02111-1307, USA.
  18  */
  19
  20 #include <stdio.h>
  21 #include "private/stream_encoder_framing.h"
  22 #include "private/crc.h"
  23 #include "FLAC/assert.h"
  24
  25 #ifdef max
  26 #undef max
  27 #endif
  28 #define max(x,y) ((x)>(y)?(x):(y))
  29
  30 static FLAC__bool subframe_add_entropy_coding_method_(FLAC__BitBuffer *bb, const FLAC__EntropyCodingMethod *method);
  31 static FLAC__bool subframe_add_residual_partitioned_rice_(FLAC__BitBuffer *bb, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order);
  32
  33 FLAC__bool FLAC__add_metadata_block(const FLAC__StreamMetaData *metadata, FLAC__BitBuffer *bb)
  34 {
  35         unsigned i;
  36
  37         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->is_last, FLAC__STREAM_METADATA_IS_LAST_LEN))
  38                 return false;
  39
  40         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->type, FLAC__STREAM_METADATA_TYPE_LEN))
  41                 return false;
  42
  43         FLAC__ASSERT(metadata->length < (1u << FLAC__STREAM_METADATA_LENGTH_LEN));
  44         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->length, FLAC__STREAM_METADATA_LENGTH_LEN))
  45                 return false;
  46
  47         switch(metadata->type) {
  48                 case FLAC__METADATA_TYPE_STREAMINFO:
  49                         FLAC__ASSERT(metadata->data.stream_info.min_blocksize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN));
  50                         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.stream_info.min_blocksize, FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN))
  51                                 return false;
  52                         FLAC__ASSERT(metadata->data.stream_info.max_blocksize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN));
  53                         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.stream_info.max_blocksize, FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN))
  54                                 return false;
  55                         FLAC__ASSERT(metadata->data.stream_info.min_framesize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN));
  56                         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.stream_info.min_framesize, FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN))
  57                                 return false;
  58                         FLAC__ASSERT(metadata->data.stream_info.max_framesize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN));
  59                         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.stream_info.max_framesize, FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN))
  60                                 return false;
  61                         FLAC__ASSERT(metadata->data.stream_info.sample_rate > 0);
  62                         FLAC__ASSERT(metadata->data.stream_info.sample_rate < (1u << FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN));
  63                         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.stream_info.sample_rate, FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN))
  64                                 return false;
  65                         FLAC__ASSERT(metadata->data.stream_info.channels > 0);
  66                         FLAC__ASSERT(metadata->data.stream_info.channels <= (1u << FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN));
  67                         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.stream_info.channels-1, FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN))
  68                                 return false;
  69                         FLAC__ASSERT(metadata->data.stream_info.bits_per_sample > 0);
  70                         FLAC__ASSERT(metadata->data.stream_info.bits_per_sample <= (1u << FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN));
  71                         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.stream_info.bits_per_sample-1, FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN))
  72                                 return false;
  73                         if(!FLAC__bitbuffer_write_raw_uint64(bb, metadata->data.stream_info.total_samples, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
  74                                 return false;
  75                         for(i = 0; i < 16; i++) {
  76                                 if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.stream_info.md5sum[i], 8))
  77                                         return false;
  78                         }
  79                         break;
  80                 case FLAC__METADATA_TYPE_PADDING:
  81                         if(!FLAC__bitbuffer_write_zeroes(bb, metadata->length * 8))
  82                                 return false;
  83                         break;
  84                 case FLAC__METADATA_TYPE_APPLICATION:
  85                         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.application.id[0], 8))
  86                                 return false;
  87                         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.application.id[1], 8))
  88                                 return false;
  89                         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.application.id[2], 8))
  90                                 return false;
  91                         if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.application.id[3], 8))
  92                                 return false;
  93                         for(i = 0; i < metadata->length; i++) {
  94                                 if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.application.data[i], 8))
  95                                         return false;
  96                         }
  97                         break;
  98                 case FLAC__METADATA_TYPE_SEEKTABLE:
  99                         for(i = 0; i < metadata->data.seek_table.num_points; i++) {
 100                                 if(!FLAC__bitbuffer_write_raw_uint64(bb, metadata->data.seek_table.points[i].sample_number, FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN))
 101                                         return false;
 102                                 if(!FLAC__bitbuffer_write_raw_uint64(bb, metadata->data.seek_table.points[i].stream_offset, FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN))
 103                                         return false;
 104                                 if(!FLAC__bitbuffer_write_raw_uint32(bb, metadata->data.seek_table.points[i].frame_samples, FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN))
 105                                         return false;
 106                         }
 107                         break;
 108                 default:
 109                         FLAC__ASSERT(0);
 110         }
 111
 112         return true;
 113 }
 114
 115 FLAC__bool FLAC__frame_add_header(const FLAC__FrameHeader *header, FLAC__bool streamable_subset, FLAC__bool is_last_block, FLAC__BitBuffer *bb)
 116 {
 117         unsigned u, blocksize_hint, sample_rate_hint;
 118
 119         FLAC__ASSERT(FLAC__bitbuffer_is_byte_aligned(bb));
 120
 121         if(!FLAC__bitbuffer_write_raw_uint32(bb, FLAC__FRAME_HEADER_SYNC, FLAC__FRAME_HEADER_SYNC_LEN))
 122                 return false;
 123
 124         if(!FLAC__bitbuffer_write_raw_uint32(bb, 0, FLAC__FRAME_HEADER_RESERVED_LEN))
 125                 return false;
 126
 127         FLAC__ASSERT(header->blocksize > 0 && header->blocksize <= FLAC__MAX_BLOCK_SIZE);
 128         blocksize_hint = 0;
 129         switch(header->blocksize) {
 130                 case   192: u = 1; break;
 131                 case   576: u = 2; break;
 132                 case  1152: u = 3; break;
 133                 case  2304: u = 4; break;
 134                 case  4608: u = 5; break;
 135                 case   256: u = 8; break;
 136                 case   512: u = 9; break;
 137                 case  1024: u = 10; break;
 138                 case  2048: u = 11; break;
 139                 case  4096: u = 12; break;
 140                 case  8192: u = 13; break;
 141                 case 16384: u = 14; break;
 142                 case 32768: u = 15; break;
 143                 default:
 144                         if(streamable_subset || is_last_block) {
 145                                 if(header->blocksize <= 0x100)
 146                                         blocksize_hint = u = 6;
 147                                 else
 148                                         blocksize_hint = u = 7;
 149                         }
 150                         else
 151                                 u = 0;
 152                         break;
 153         }
 154         if(!FLAC__bitbuffer_write_raw_uint32(bb, u, FLAC__FRAME_HEADER_BLOCK_SIZE_LEN))
 155                 return false;
 156
 157         FLAC__ASSERT(header->sample_rate > 0 && header->sample_rate < (1u << FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN));
 158         sample_rate_hint = 0;
 159         switch(header->sample_rate) {
 160                 case  8000: u = 4; break;
 161                 case 16000: u = 5; break;
 162                 case 22050: u = 6; break;
 163                 case 24000: u = 7; break;
 164                 case 32000: u = 8; break;
 165                 case 44100: u = 9; break;
 166                 case 48000: u = 10; break;
 167                 case 96000: u = 11; break;
 168                 default:
 169                         if(streamable_subset) {
 170                                 if(header->sample_rate % 1000 == 0)
 171                                         sample_rate_hint = u = 12;
 172                                 else if(header->sample_rate % 10 == 0)
 173                                         sample_rate_hint = u = 14;
 174                                 else
 175                                         sample_rate_hint = u = 13;
 176                         }
 177                         else
 178                                 u = 0;
 179                         break;
 180         }
 181         if(!FLAC__bitbuffer_write_raw_uint32(bb, u, FLAC__FRAME_HEADER_SAMPLE_RATE_LEN))
 182                 return false;
 183
 184         FLAC__ASSERT(header->channels > 0 && header->channels <= (1u << FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN) && header->channels <= FLAC__MAX_CHANNELS);
 185         switch(header->channel_assignment) {
 186                 case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
 187                         u = header->channels - 1;
 188                         break;
 189                 case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
 190                         FLAC__ASSERT(header->channels == 2);
 191                         u = 8;
 192                         break;
 193                 case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
 194                         FLAC__ASSERT(header->channels == 2);
 195                         u = 9;
 196                         break;
 197                 case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
 198                         FLAC__ASSERT(header->channels == 2);
 199                         u = 10;
 200                         break;
 201                 default:
 202                         FLAC__ASSERT(0);
 203         }
 204         if(!FLAC__bitbuffer_write_raw_uint32(bb, u, FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN))
 205                 return false;
 206
 207         FLAC__ASSERT(header->bits_per_sample > 0 && header->bits_per_sample <= (1u << FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN));
 208         switch(header->bits_per_sample) {
 209                 case 8 : u = 1; break;
 210                 case 12: u = 2; break;
 211                 case 16: u = 4; break;
 212                 case 20: u = 5; break;
 213                 case 24: u = 6; break;
 214                 default: u = 0; break;
 215         }
 216         if(!FLAC__bitbuffer_write_raw_uint32(bb, u, FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN))
 217                 return false;
 218
 219         if(!FLAC__bitbuffer_write_raw_uint32(bb, 0, FLAC__FRAME_HEADER_ZERO_PAD_LEN))
 220                 return false;
 221
 222         FLAC__ASSERT(header->number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER);
 223         if(!FLAC__bitbuffer_write_utf8_uint32(bb, header->number.frame_number))
 224                 return false;
 225
 226         if(blocksize_hint)
 227                 if(!FLAC__bitbuffer_write_raw_uint32(bb, header->blocksize-1, (blocksize_hint==6)? 8:16))
 228                         return false;
 229
 230         switch(sample_rate_hint) {
 231                 case 12:
 232                         if(!FLAC__bitbuffer_write_raw_uint32(bb, header->sample_rate / 1000, 8))
 233                                 return false;
 234                         break;
 235                 case 13:
 236                         if(!FLAC__bitbuffer_write_raw_uint32(bb, header->sample_rate, 16))
 237                                 return false;
 238                         break;
 239                 case 14:
 240                         if(!FLAC__bitbuffer_write_raw_uint32(bb, header->sample_rate / 10, 16))
 241                                 return false;
 242                         break;
 243         }
 244
 245         /* write the CRC */
 246         if(!FLAC__bitbuffer_write_raw_uint32(bb, FLAC__bitbuffer_get_write_crc8(bb), FLAC__FRAME_HEADER_CRC_LEN))
 247                 return false;
 248
 249         return true;
 250 }
 251
 252 FLAC__bool FLAC__subframe_add_constant(const FLAC__Subframe_Constant *subframe, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitBuffer *bb)
 253 {
 254         FLAC__bool ok;
 255
 256         ok =
 257                 FLAC__bitbuffer_write_raw_uint32(bb, FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN) &&
 258                 (wasted_bits? FLAC__bitbuffer_write_unary_unsigned(bb, wasted_bits-1) : true) &&
 259                 FLAC__bitbuffer_write_raw_int32(bb, subframe->value, subframe_bps)
 260         ;
 261
 262         return ok;
 263 }
 264
 265 FLAC__bool FLAC__subframe_add_fixed(const FLAC__Subframe_Fixed *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitBuffer *bb)
 266 {
 267         unsigned i;
 268
 269         if(!FLAC__bitbuffer_write_raw_uint32(bb, FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK | (subframe->order<<1) | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
 270                 return false;
 271         if(wasted_bits)
 272                 if(!FLAC__bitbuffer_write_unary_unsigned(bb, wasted_bits-1))
 273                         return false;
 274
 275         for(i = 0; i < subframe->order; i++)
 276                 if(!FLAC__bitbuffer_write_raw_int32(bb, subframe->warmup[i], subframe_bps))
 277                         return false;
 278
 279         if(!subframe_add_entropy_coding_method_(bb, &subframe->entropy_coding_method))
 280                 return false;
 281         switch(subframe->entropy_coding_method.type) {
 282                 case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
 283                         if(!subframe_add_residual_partitioned_rice_(bb, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.parameters, subframe->entropy_coding_method.data.partitioned_rice.raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order))
 284                                 return false;
 285                         break;
 286                 default:
 287                         FLAC__ASSERT(0);
 288         }
 289
 290         return true;
 291 }
 292
 293 FLAC__bool FLAC__subframe_add_lpc(const FLAC__Subframe_LPC *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitBuffer *bb)
 294 {
 295         unsigned i;
 296
 297         if(!FLAC__bitbuffer_write_raw_uint32(bb, FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK | ((subframe->order-1)<<1) | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
 298                 return false;
 299         if(wasted_bits)
 300                 if(!FLAC__bitbuffer_write_unary_unsigned(bb, wasted_bits-1))
 301                         return false;
 302
 303         for(i = 0; i < subframe->order; i++)
 304                 if(!FLAC__bitbuffer_write_raw_int32(bb, subframe->warmup[i], subframe_bps))
 305                         return false;
 306
 307         if(!FLAC__bitbuffer_write_raw_uint32(bb, subframe->qlp_coeff_precision-1, FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN))
 308                 return false;
 309         if(!FLAC__bitbuffer_write_raw_int32(bb, subframe->quantization_level, FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN))
 310                 return false;
 311         for(i = 0; i < subframe->order; i++)
 312                 if(!FLAC__bitbuffer_write_raw_int32(bb, subframe->qlp_coeff[i], subframe->qlp_coeff_precision))
 313                         return false;
 314
 315         if(!subframe_add_entropy_coding_method_(bb, &subframe->entropy_coding_method))
 316                 return false;
 317         switch(subframe->entropy_coding_method.type) {
 318                 case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
 319                         if(!subframe_add_residual_partitioned_rice_(bb, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.parameters, subframe->entropy_coding_method.data.partitioned_rice.raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order))
 320                                 return false;
 321                         break;
 322                 default:
 323                         FLAC__ASSERT(0);
 324         }
 325
 326         return true;
 327 }
 328
 329 FLAC__bool FLAC__subframe_add_verbatim(const FLAC__Subframe_Verbatim *subframe, unsigned samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitBuffer *bb)
 330 {
 331         unsigned i;
 332         const FLAC__int32 *signal = subframe->data;
 333
 334         if(!FLAC__bitbuffer_write_raw_uint32(bb, FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
 335                 return false;
 336         if(wasted_bits)
 337                 if(!FLAC__bitbuffer_write_unary_unsigned(bb, wasted_bits-1))
 338                         return false;
 339
 340         for(i = 0; i < samples; i++)
 341                 if(!FLAC__bitbuffer_write_raw_int32(bb, signal[i], subframe_bps))
 342                         return false;
 343
 344         return true;
 345 }
 346
 347 FLAC__bool subframe_add_entropy_coding_method_(FLAC__BitBuffer *bb, const FLAC__EntropyCodingMethod *method)
 348 {
 349         if(!FLAC__bitbuffer_write_raw_uint32(bb, method->type, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
 350                 return false;
 351         switch(method->type) {
 352                 case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
 353                         if(!FLAC__bitbuffer_write_raw_uint32(bb, method->data.partitioned_rice.order, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
 354                                 return false;
 355                         break;
 356                 default:
 357                         FLAC__ASSERT(0);
 358         }
 359         return true;
 360 }
 361
 362 FLAC__bool subframe_add_residual_partitioned_rice_(FLAC__BitBuffer *bb, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order)
 363 {
 364         if(partition_order == 0) {
 365                 unsigned i;
 366
 367                 if(!FLAC__bitbuffer_write_raw_uint32(bb, rice_parameters[0], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN))
 368                         return false;
 369                 if(rice_parameters[0] < FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER) {
 370                         for(i = 0; i < residual_samples; i++) {
 371 #ifdef FLAC__SYMMETRIC_RICE
 372                                 if(!FLAC__bitbuffer_write_symmetric_rice_signed(bb, residual[i], rice_parameters[0]))
 373                                         return false;
 374 #else
 375                                 if(!FLAC__bitbuffer_write_rice_signed(bb, residual[i], rice_parameters[0]))
 376                                         return false;
 377 #endif
 378                         }
 379                 }
 380                 else {
 381                         if(!FLAC__bitbuffer_write_raw_uint32(bb, raw_bits[0], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
 382                                 return false;
 383                         for(i = 0; i < residual_samples; i++) {
 384                                 if(!FLAC__bitbuffer_write_raw_int32(bb, residual[i], raw_bits[0]))
 385                                         return false;
 386                         }
 387                 }
 388                 return true;
 389         }
 390         else {
 391                 unsigned i, j, k = 0, k_last = 0;
 392                 unsigned partition_samples;
 393                 const unsigned default_partition_samples = (residual_samples+predictor_order) >> partition_order;
 394                 for(i = 0; i < (1u<<partition_order); i++) {
 395                         if(!FLAC__bitbuffer_write_raw_uint32(bb, rice_parameters[i], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN))
 396                                 return false;
 397                         partition_samples = default_partition_samples;
 398                         if(i == 0)
 399                                 partition_samples -= predictor_order;
 400                         k += partition_samples;
 401                         if(rice_parameters[i] < FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER) {
 402                                 for(j = k_last; j < k; j++) {
 403 #ifdef FLAC__SYMMETRIC_RICE
 404                                         if(!FLAC__bitbuffer_write_symmetric_rice_signed(bb, residual[j], rice_parameters[i]))
 405                                                 return false;
 406 #else
 407                                         if(!FLAC__bitbuffer_write_rice_signed(bb, residual[j], rice_parameters[i]))
 408                                                 return false;
 409 #endif
 410                                 }
 411                         }
 412                         else {
 413                                 if(!FLAC__bitbuffer_write_raw_uint32(bb, raw_bits[i], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
 414                                         return false;
 415                                 for(j = k_last; j < k; j++) {
 416                                         if(!FLAC__bitbuffer_write_raw_int32(bb, residual[j], raw_bits[i]))
 417                                                 return false;
 418                                 }
 419                         }
 420                         k_last = k;
 421                 }
 422                 return true;
 423         }
 424 }