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      1 /* libFLAC - Free Lossless Audio Codec library
      2  * Copyright (C) 2001-2009  Josh Coalson
      3  * Copyright (C) 2011-2014  Xiph.Org Foundation
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *
      9  * - Redistributions of source code must retain the above copyright
     10  * notice, this list of conditions and the following disclaimer.
     11  *
     12  * - Redistributions in binary form must reproduce the above copyright
     13  * notice, this list of conditions and the following disclaimer in the
     14  * documentation and/or other materials provided with the distribution.
     15  *
     16  * - Neither the name of the Xiph.org Foundation nor the names of its
     17  * contributors may be used to endorse or promote products derived from
     18  * this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     23  * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
     24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #ifndef FLAC__PROTECTED__STREAM_ENCODER_H
     34 #define FLAC__PROTECTED__STREAM_ENCODER_H
     35 
     36 #include "FLAC/stream_encoder.h"
     37 #if FLAC__HAS_OGG
     38 #include "private/ogg_encoder_aspect.h"
     39 #endif
     40 
     41 #ifndef FLAC__INTEGER_ONLY_LIBRARY
     42 
     43 #include "private/float.h"
     44 
     45 #define FLAC__MAX_APODIZATION_FUNCTIONS 32
     46 
     47 typedef enum {
     48 	FLAC__APODIZATION_BARTLETT,
     49 	FLAC__APODIZATION_BARTLETT_HANN,
     50 	FLAC__APODIZATION_BLACKMAN,
     51 	FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE,
     52 	FLAC__APODIZATION_CONNES,
     53 	FLAC__APODIZATION_FLATTOP,
     54 	FLAC__APODIZATION_GAUSS,
     55 	FLAC__APODIZATION_HAMMING,
     56 	FLAC__APODIZATION_HANN,
     57 	FLAC__APODIZATION_KAISER_BESSEL,
     58 	FLAC__APODIZATION_NUTTALL,
     59 	FLAC__APODIZATION_RECTANGLE,
     60 	FLAC__APODIZATION_TRIANGLE,
     61 	FLAC__APODIZATION_TUKEY,
     62 	FLAC__APODIZATION_PARTIAL_TUKEY,
     63 	FLAC__APODIZATION_PUNCHOUT_TUKEY,
     64 	FLAC__APODIZATION_WELCH
     65 } FLAC__ApodizationFunction;
     66 
     67 typedef struct {
     68 	FLAC__ApodizationFunction type;
     69 	union {
     70 		struct {
     71 			FLAC__real stddev;
     72 		} gauss;
     73 		struct {
     74 			FLAC__real p;
     75 		} tukey;
     76 		struct {
     77 			FLAC__real p;
     78 			FLAC__real start;
     79 			FLAC__real end;
     80 		} multiple_tukey;
     81 	} parameters;
     82 } FLAC__ApodizationSpecification;
     83 
     84 #endif // #ifndef FLAC__INTEGER_ONLY_LIBRARY
     85 
     86 typedef struct FLAC__StreamEncoderProtected {
     87 	FLAC__StreamEncoderState state;
     88 	FLAC__bool verify;
     89 	FLAC__bool streamable_subset;
     90 	FLAC__bool do_md5;
     91 	FLAC__bool do_mid_side_stereo;
     92 	FLAC__bool loose_mid_side_stereo;
     93 	unsigned channels;
     94 	unsigned bits_per_sample;
     95 	unsigned sample_rate;
     96 	unsigned blocksize;
     97 #ifndef FLAC__INTEGER_ONLY_LIBRARY
     98 	unsigned num_apodizations;
     99 	FLAC__ApodizationSpecification apodizations[FLAC__MAX_APODIZATION_FUNCTIONS];
    100 #endif
    101 	unsigned max_lpc_order;
    102 	unsigned qlp_coeff_precision;
    103 	FLAC__bool do_qlp_coeff_prec_search;
    104 	FLAC__bool do_exhaustive_model_search;
    105 	FLAC__bool do_escape_coding;
    106 	unsigned min_residual_partition_order;
    107 	unsigned max_residual_partition_order;
    108 	unsigned rice_parameter_search_dist;
    109 	FLAC__uint64 total_samples_estimate;
    110 	FLAC__StreamMetadata **metadata;
    111 	unsigned num_metadata_blocks;
    112 	FLAC__uint64 streaminfo_offset, seektable_offset, audio_offset;
    113 #if FLAC__HAS_OGG
    114 	FLAC__OggEncoderAspect ogg_encoder_aspect;
    115 #endif
    116 } FLAC__StreamEncoderProtected;
    117 
    118 #endif
    119