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1 /* libFLAC - Free Lossless Audio Codec library
2  * Copyright (C) 2001-2009  Josh Coalson
3  * Copyright (C) 2011-2016  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