FLAC__bool FLAC__subframe_add_lpc(const FLAC__Subframe_LPC *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw) { unsigned i; if(!FLAC__bitwriter_write_raw_uint32(bw, 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)) return false; if(wasted_bits) if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1)) return false; for(i = 0; i < subframe->order; i++) if(!FLAC__bitwriter_write_raw_int32(bw, subframe->warmup[i], subframe_bps)) return false; if(!FLAC__bitwriter_write_raw_uint32(bw, subframe->qlp_coeff_precision-1, FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN)) return false; if(!FLAC__bitwriter_write_raw_int32(bw, subframe->quantization_level, FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN)) return false; for(i = 0; i < subframe->order; i++) if(!FLAC__bitwriter_write_raw_int32(bw, subframe->qlp_coeff[i], subframe->qlp_coeff_precision)) return false; if(!add_entropy_coding_method_(bw, &subframe->entropy_coding_method)) return false; switch(subframe->entropy_coding_method.type) { case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE: if(!add_residual_partitioned_rice_(bw, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.contents->parameters, subframe->entropy_coding_method.data.partitioned_rice.contents->raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order)) return false; break; default: FLAC__ASSERT(0); } return true; }
FLAC__bool FLAC__subframe_add_constant(const FLAC__Subframe_Constant *subframe, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw) { FLAC__bool ok; ok = FLAC__bitwriter_write_raw_uint32(bw, 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) && (wasted_bits? FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1) : true) && FLAC__bitwriter_write_raw_int32(bw, subframe->value, subframe_bps) ; return ok; }
FLAC__bool FLAC__subframe_add_verbatim(const FLAC__Subframe_Verbatim *subframe, unsigned samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw) { unsigned i; const FLAC__int32 *signal = subframe->data; if(!FLAC__bitwriter_write_raw_uint32(bw, 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)) return false; if(wasted_bits) if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1)) return false; for(i = 0; i < samples; i++) if(!FLAC__bitwriter_write_raw_int32(bw, signal[i], subframe_bps)) return false; return true; }
FLAC__bool FLAC__subframe_add_fixed(const FLAC__Subframe_Fixed *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw) { unsigned i; if(!FLAC__bitwriter_write_raw_uint32(bw, 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)) return false; if(wasted_bits) if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1)) return false; for(i = 0; i < subframe->order; i++) if(!FLAC__bitwriter_write_raw_int32(bw, subframe->warmup[i], subframe_bps)) return false; if(!add_entropy_coding_method_(bw, &subframe->entropy_coding_method)) return false; switch(subframe->entropy_coding_method.type) { case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE: case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2: if(!add_residual_partitioned_rice_( bw, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.contents->parameters, subframe->entropy_coding_method.data.partitioned_rice.contents->raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order, /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2 )) return false; break; default: FLAC__ASSERT(0); } return true; }