FFmpeg coverage

Directory:	../../../ffmpeg/
File:	src/libavcodec/wavpack.h
Date:	2025-01-20 09:27:23

	Exec	Total	Coverage
Lines:	20	21	95.2%
Functions:	2	2	100.0%
Branches:	13	14	92.9%

  
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      /*
    
       * WavPack decoder/encoder common code
    
       * Copyright (c) 2006,2011 Konstantin Shishkov
    
       *
    
       * This file is part of FFmpeg.
    
       *
    
       * FFmpeg is free software; you can redistribute it and/or
    
       * modify it under the terms of the GNU Lesser General Public
    
       * License as published by the Free Software Foundation; either
    
       * version 2.1 of the License, or (at your option) any later version.
    
       *
    
       * FFmpeg is distributed in the hope that it will be useful,
    
       * but WITHOUT ANY WARRANTY; without even the implied warranty of
    
       * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    
       * Lesser General Public License for more details.
    
       *
    
       * You should have received a copy of the GNU Lesser General Public
    
       * License along with FFmpeg; if not, write to the Free Software
    
       * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
    
       */
    
      #ifndef AVCODEC_WAVPACK_H
    
      #define AVCODEC_WAVPACK_H
    
      #include <limits.h>
    
      #include <stdint.h>
    
      #include "libavutil/attributes.h"
    
      #include "libavutil/intmath.h"
    
      #define MAX_TERMS      16
    
      #define MAX_TERM        8
    
      #define WV_HEADER_SIZE    32
    
      #define WV_MONO           0x00000004
    
      #define WV_JOINT_STEREO   0x00000010
    
      #define WV_CROSS_DECORR   0x00000020
    
      #define WV_FLOAT_DATA     0x00000080
    
      #define WV_INT32_DATA     0x00000100
    
      #define WV_FALSE_STEREO   0x40000000
    
      #define WV_DSD_DATA       0x80000000
    
      #define WV_HYBRID_MODE    0x00000008
    
      #define WV_HYBRID_SHAPE   0x00000008
    
      #define WV_HYBRID_BITRATE 0x00000200
    
      #define WV_HYBRID_BALANCE 0x00000400
    
      #define WV_INITIAL_BLOCK  0x00000800
    
      #define WV_FINAL_BLOCK    0x00001000
    
      #define WV_MONO_DATA    (WV_MONO | WV_FALSE_STEREO)
    
      #define WV_SINGLE_BLOCK (WV_INITIAL_BLOCK | WV_FINAL_BLOCK)
    
      #define WV_FLT_SHIFT_ONES 0x01
    
      #define WV_FLT_SHIFT_SAME 0x02
    
      #define WV_FLT_SHIFT_SENT 0x04
    
      #define WV_FLT_ZERO_SENT  0x08
    
      #define WV_FLT_ZERO_SIGN  0x10
    
      #define WV_MAX_CHANNELS   (1 << 12)
    
      #define WV_MAX_SAMPLES    150000
    
      enum WP_ID_Flags {
    
          WP_IDF_MASK   = 0x3F,
    
          WP_IDF_IGNORE = 0x20,
    
          WP_IDF_ODD    = 0x40,
    
          WP_IDF_LONG   = 0x80
    
      };
    
      enum WP_ID {
    
          WP_ID_DUMMY = 0,
    
          WP_ID_ENCINFO,
    
          WP_ID_DECTERMS,
    
          WP_ID_DECWEIGHTS,
    
          WP_ID_DECSAMPLES,
    
          WP_ID_ENTROPY,
    
          WP_ID_HYBRID,
    
          WP_ID_SHAPING,
    
          WP_ID_FLOATINFO,
    
          WP_ID_INT32INFO,
    
          WP_ID_DATA,
    
          WP_ID_CORR,
    
          WP_ID_EXTRABITS,
    
          WP_ID_CHANINFO,
    
          WP_ID_DSD_DATA,
    
          WP_ID_SAMPLE_RATE = 0x27,
    
      };
    
      typedef struct Decorr {
    
          int delta;
    
          int value;
    
          int weightA;
    
          int weightB;
    
          int samplesA[MAX_TERM];
    
          int samplesB[MAX_TERM];
    
          int sumA;
    
          int sumB;
    
      } Decorr;
    
      typedef struct WvChannel {
    
          int median[3];
    
          int slow_level, error_limit;
    
          unsigned bitrate_acc, bitrate_delta;
    
      } WvChannel;
    
      // macros for manipulating median values
    
      #define GET_MED(n) ((c->median[n] >> 4) + 1)
    
      #define DEC_MED(n) c->median[n] -= ((int)(c->median[n] + (128U >> (n)) - 2) / (128 >> (n))) * 2U
    
      #define INC_MED(n) c->median[n] += ((int)(c->median[n] + (128U >> (n))    ) / (128 >> (n))) * 5U
    
      // macros for applying weight
    
      #define UPDATE_WEIGHT_CLIP(weight, delta, samples, in) \
    
          if ((samples) && (in)) { \
    
              if (((samples) ^ (in)) < 0) { \
    
                  (weight) -= (delta); \
    
                  if ((weight) < -1024) \
    
                      (weight) = -1024; \
    
              } else { \
    
                  (weight) += (delta); \
    
                  if ((weight) > 1024) \
    
                      (weight) = 1024; \
    
              } \
    
          }
    
      static const int wv_rates[16] = {
    
           6000,  8000,  9600, 11025, 12000, 16000,  22050, 24000,
    
          32000, 44100, 48000, 64000, 88200, 96000, 192000,     0
    
      };
    
      // exponent table copied from WavPack source
    
      extern const uint8_t ff_wp_exp2_table[256];
    
      extern const uint8_t ff_wp_log2_table[256];
    
      59970751
      static av_always_inline int wp_exp2(int16_t val)
    
      {
    
      59970751
          int res, neg = 0;
    
        2/2✓ Branch 0 taken 3823 times.
✓ Branch 1 taken 59966928 times.

      59970751
          if (val < 0) {
    
      3823
              val = -val;
    
      3823
              neg = 1;
    
          }
    
      59970751
          res   = ff_wp_exp2_table[val & 0xFF] | 0x100;
    
      59970751
          val >>= 8;
    
        1/2✗ Branch 0 not taken.
✓ Branch 1 taken 59970751 times.

      59970751
          if (val > 31U)
    
      ✗
              return INT_MIN;
    
        2/2✓ Branch 0 taken 19414139 times.
✓ Branch 1 taken 40556612 times.

      59970751
          res   = (val > 9) ? (res << (val - 9)) : (res >> (9 - val));
    
        2/2✓ Branch 0 taken 3823 times.
✓ Branch 1 taken 59966928 times.

      59970751
          return neg ? -res : res;
    
      }
    
      59878828
      static av_always_inline int wp_log2(uint32_t val)
    
      {
    
          int bits;
    
        2/2✓ Branch 0 taken 2356777 times.
✓ Branch 1 taken 57522051 times.

      59878828
          if (!val)
    
      2356777
              return 0;
    
        2/2✓ Branch 0 taken 4010746 times.
✓ Branch 1 taken 53511305 times.

      57522051
          if (val == 1)
    
      4010746
              return 256;
    
      53511305
          val += val >> 9;
    
      53511305
          bits = av_log2(val) + 1;
    
        2/2✓ Branch 0 taken 27967183 times.
✓ Branch 1 taken 25544122 times.

      53511305
          if (bits < 9)
    
      27967183
              return (bits << 8) + ff_wp_log2_table[(val << (9 - bits)) & 0xFF];
    
          else
    
      25544122
              return (bits << 8) + ff_wp_log2_table[(val >> (bits - 9)) & 0xFF];
    
      }
    
      #endif /* AVCODEC_WAVPACK_H */

Line	Branch	Exec	Source
1			/*
2			* WavPack decoder/encoder common code
3			* Copyright (c) 2006,2011 Konstantin Shishkov
4			*
5			* This file is part of FFmpeg.
6			*
7			* FFmpeg is free software; you can redistribute it and/or
8			* modify it under the terms of the GNU Lesser General Public
9			* License as published by the Free Software Foundation; either
10			* version 2.1 of the License, or (at your option) any later version.
11			*
12			* FFmpeg is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15			* Lesser General Public License for more details.
16			*
17			* You should have received a copy of the GNU Lesser General Public
18			* License along with FFmpeg; if not, write to the Free Software
19			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20			*/
21
22			#ifndef AVCODEC_WAVPACK_H
23			#define AVCODEC_WAVPACK_H
24
25			#include <limits.h>
26			#include <stdint.h>
27			#include "libavutil/attributes.h"
28			#include "libavutil/intmath.h"
29
30			#define MAX_TERMS 16
31			#define MAX_TERM 8
32
33			#define WV_HEADER_SIZE 32
34
35			#define WV_MONO 0x00000004
36			#define WV_JOINT_STEREO 0x00000010
37			#define WV_CROSS_DECORR 0x00000020
38			#define WV_FLOAT_DATA 0x00000080
39			#define WV_INT32_DATA 0x00000100
40			#define WV_FALSE_STEREO 0x40000000
41			#define WV_DSD_DATA 0x80000000
42
43			#define WV_HYBRID_MODE 0x00000008
44			#define WV_HYBRID_SHAPE 0x00000008
45			#define WV_HYBRID_BITRATE 0x00000200
46			#define WV_HYBRID_BALANCE 0x00000400
47			#define WV_INITIAL_BLOCK 0x00000800
48			#define WV_FINAL_BLOCK 0x00001000
49
50			#define WV_MONO_DATA (WV_MONO \| WV_FALSE_STEREO)
51
52			#define WV_SINGLE_BLOCK (WV_INITIAL_BLOCK \| WV_FINAL_BLOCK)
53
54			#define WV_FLT_SHIFT_ONES 0x01
55			#define WV_FLT_SHIFT_SAME 0x02
56			#define WV_FLT_SHIFT_SENT 0x04
57			#define WV_FLT_ZERO_SENT 0x08
58			#define WV_FLT_ZERO_SIGN 0x10
59
60			#define WV_MAX_CHANNELS (1 << 12)
61			#define WV_MAX_SAMPLES 150000
62
63			enum WP_ID_Flags {
64			WP_IDF_MASK = 0x3F,
65			WP_IDF_IGNORE = 0x20,
66			WP_IDF_ODD = 0x40,
67			WP_IDF_LONG = 0x80
68			};
69
70			enum WP_ID {
71			WP_ID_DUMMY = 0,
72			WP_ID_ENCINFO,
73			WP_ID_DECTERMS,
74			WP_ID_DECWEIGHTS,
75			WP_ID_DECSAMPLES,
76			WP_ID_ENTROPY,
77			WP_ID_HYBRID,
78			WP_ID_SHAPING,
79			WP_ID_FLOATINFO,
80			WP_ID_INT32INFO,
81			WP_ID_DATA,
82			WP_ID_CORR,
83			WP_ID_EXTRABITS,
84			WP_ID_CHANINFO,
85			WP_ID_DSD_DATA,
86			WP_ID_SAMPLE_RATE = 0x27,
87			};
88
89			typedef struct Decorr {
90			int delta;
91			int value;
92			int weightA;
93			int weightB;
94			int samplesA[MAX_TERM];
95			int samplesB[MAX_TERM];
96			int sumA;
97			int sumB;
98			} Decorr;
99
100			typedef struct WvChannel {
101			int median[3];
102			int slow_level, error_limit;
103			unsigned bitrate_acc, bitrate_delta;
104			} WvChannel;
105
106			// macros for manipulating median values
107			#define GET_MED(n) ((c->median[n] >> 4) + 1)
108			#define DEC_MED(n) c->median[n] -= ((int)(c->median[n] + (128U >> (n)) - 2) / (128 >> (n))) * 2U
109			#define INC_MED(n) c->median[n] += ((int)(c->median[n] + (128U >> (n)) ) / (128 >> (n))) * 5U
110
111			// macros for applying weight
112			#define UPDATE_WEIGHT_CLIP(weight, delta, samples, in) \
113			if ((samples) && (in)) { \
114			if (((samples) ^ (in)) < 0) { \
115			(weight) -= (delta); \
116			if ((weight) < -1024) \
117			(weight) = -1024; \
118			} else { \
119			(weight) += (delta); \
120			if ((weight) > 1024) \
121			(weight) = 1024; \
122			} \
123			}
124
125			static const int wv_rates[16] = {
126			6000, 8000, 9600, 11025, 12000, 16000, 22050, 24000,
127			32000, 44100, 48000, 64000, 88200, 96000, 192000, 0
128			};
129
130			// exponent table copied from WavPack source
131			extern const uint8_t ff_wp_exp2_table[256];
132			extern const uint8_t ff_wp_log2_table[256];
133
134		59970751	static av_always_inline int wp_exp2(int16_t val)
135			{
136		59970751	int res, neg = 0;
137
138	2/2 ✓ Branch 0 taken 3823 times. ✓ Branch 1 taken 59966928 times.	59970751	if (val < 0) {
139		3823	val = -val;
140		3823	neg = 1;
141			}
142
143		59970751	res = ff_wp_exp2_table[val & 0xFF] \| 0x100;
144		59970751	val >>= 8;
145	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 59970751 times.	59970751	if (val > 31U)
146		✗	return INT_MIN;
147	2/2 ✓ Branch 0 taken 19414139 times. ✓ Branch 1 taken 40556612 times.	59970751	res = (val > 9) ? (res << (val - 9)) : (res >> (9 - val));
148	2/2 ✓ Branch 0 taken 3823 times. ✓ Branch 1 taken 59966928 times.	59970751	return neg ? -res : res;
149			}
150
151		59878828	static av_always_inline int wp_log2(uint32_t val)
152			{
153			int bits;
154
155	2/2 ✓ Branch 0 taken 2356777 times. ✓ Branch 1 taken 57522051 times.	59878828	if (!val)
156		2356777	return 0;
157	2/2 ✓ Branch 0 taken 4010746 times. ✓ Branch 1 taken 53511305 times.	57522051	if (val == 1)
158		4010746	return 256;
159		53511305	val += val >> 9;
160		53511305	bits = av_log2(val) + 1;
161	2/2 ✓ Branch 0 taken 27967183 times. ✓ Branch 1 taken 25544122 times.	53511305	if (bits < 9)
162		27967183	return (bits << 8) + ff_wp_log2_table[(val << (9 - bits)) & 0xFF];
163			else
164		25544122	return (bits << 8) + ff_wp_log2_table[(val >> (bits - 9)) & 0xFF];
165			}
166
167			#endif /* AVCODEC_WAVPACK_H */
168

Function (Line)	Call count	Block coverage
wp_exp2 (line 134)	called 59970751 times, returned 59970751 times	92.0%
wp_log2 (line 151)	called 59878828 times, returned 59878828 times	100.0%