FFmpeg coverage

Directory:	../../../ffmpeg/
File:	src/tests/checkasm/av_tx.c
Date:	2026-08-15 14:54:27

	Exec	Total	Coverage
Lines:	19	19	100.0%
Functions:	2	2	100.0%
Branches:	49	112	43.8%

  
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      /*
    
       * This file is part of FFmpeg.
    
       *
    
       * FFmpeg is free software; you can redistribute it and/or modify
    
       * it under the terms of the GNU General Public License as published by
    
       * the Free Software Foundation; either version 2 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 General Public License for more details.
    
       *
    
       * You should have received a copy of the GNU 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.
    
       */
    
      #include "libavutil/mem.h"
    
      #include "libavutil/mem_internal.h"
    
      #include "libavutil/tx.h"
    
      #include "libavutil/error.h"
    
      #include "checkasm.h"
    
      #include <stdlib.h>
    
      #define EPS 0.0005
    
      #define SCALE_NOOP(x) (x)
    
      #define SCALE_INT20(x) (av_clip64(lrintf((x) * 2147483648.0), INT32_MIN, INT32_MAX) >> 12)
    
      #define randomize_complex(BUF, LEN, TYPE, SCALE)                \
    
          do {                                                        \
    
              TYPE *buf = (TYPE *)BUF;                                \
    
              for (int i = 0; i < LEN; i++) {                         \
    
                  double fre = (double)rnd() / UINT_MAX;              \
    
                  double fim = (double)rnd() / UINT_MAX;              \
    
                  buf[i] = (TYPE){ SCALE(fre), SCALE(fim) };          \
    
              }                                                       \
    
          } while (0)
    
      static const int check_lens[] = {
    
          2, 4, 8, 16, 32, 64, 120, 960, 1024, 1920, 16384,
    
      };
    
      static AVTXContext *tx_refs[AV_TX_NB][2 /* Direction */][FF_ARRAY_ELEMS(check_lens)] = { 0 };
    
      1
      void checkasm_uninit_tx(void)
    
      {
    
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      19
          for (int i = 0; i < FF_ARRAY_ELEMS(tx_refs); i++)
    
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      54
              for (int j = 0; j < FF_ARRAY_ELEMS(*tx_refs); j++)
    
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      432
                  for (int k = 0; k < FF_ARRAY_ELEMS(**tx_refs); k++)
    
      396
                      av_tx_uninit(&tx_refs[i][j][k]);
    
      1
      }
    
      #define CHECK_TEMPLATE(PREFIX, TYPE, DIR, DATA_TYPE, SCALE_TYPE, LENGTHS, CHECK_EXPRESSION) \
    
          do {                                                                          \
    
              int err;                                                                  \
    
              AVTXContext *tx;                                                          \
    
              av_tx_fn fn;                                                              \
    
              int num_checks = 0;                                                       \
    
              int last_check = 0;                                                       \
    
                                                                                        \
    
              for (int i = 0; i < FF_ARRAY_ELEMS(LENGTHS); i++) {                       \
    
                  int len = LENGTHS[i];                                                 \
    
                  const SCALE_TYPE scale = 1.0 / len;                                   \
    
                                                                                        \
    
                  if ((err = av_tx_init(&tx, &fn, TYPE, DIR, len, &scale, 0x0)) < 0) {  \
    
                      fprintf(stderr, "av_tx: %s\n", av_err2str(err));                  \
    
                      return;                                                           \
    
                  }                                                                     \
    
                                                                                        \
    
                  if (check_func(fn, PREFIX "_%i", len)) {                              \
    
                      AVTXContext *tx_ref = tx_refs[TYPE][DIR][i];                      \
    
                      if (!tx_ref)                                                      \
    
                          tx_ref = tx;                                                  \
    
                      num_checks++;                                                     \
    
                      last_check = len;                                                 \
    
                      call_ref(tx_ref, out_ref, in, sizeof(DATA_TYPE));                 \
    
                      call_new(tx,     out_new, in, sizeof(DATA_TYPE));                 \
    
                      if (CHECK_EXPRESSION) {                                           \
    
                          fail();                                                       \
    
                          av_tx_uninit(&tx);                                            \
    
                          break;                                                        \
    
                      }                                                                 \
    
                      bench_new(tx, out_new, in, sizeof(DATA_TYPE));                    \
    
                      av_tx_uninit(&tx_refs[TYPE][DIR][i]);                             \
    
                      tx_refs[TYPE][DIR][i] = tx;                                       \
    
                  } else {                                                              \
    
                      av_tx_uninit(&tx);                                                \
    
                  }                                                                     \
    
              }                                                                         \
    
                                                                                        \
    
              if (num_checks == 1)                                                      \
    
                  report(PREFIX "_%i", last_check);                                     \
    
              else if (num_checks)                                                      \
    
                  report(PREFIX);                                                       \
    
          } while (0)
    
      14
      void checkasm_check_av_tx(void)
    
      {
    
      14
          declare_func(void, AVTXContext *tx, void *out, void *in, ptrdiff_t stride);
    
      14
          void *in      = av_malloc(16384*2*8);
    
      14
          void *out_ref = av_malloc(16384*2*8);
    
      14
          void *out_new = av_malloc(16384*2*8);
    
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      229390
          randomize_complex(in, 16384, AVComplexFloat, SCALE_NOOP);
    
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      168
          CHECK_TEMPLATE("float_fft", AV_TX_FLOAT_FFT, 0, AVComplexFloat, float, check_lens,
    
                         !float_near_abs_eps_array(out_ref, out_new, EPS, len*2));
    
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      168
          CHECK_TEMPLATE("float_imdct", AV_TX_FLOAT_MDCT, 1, float, float, check_lens,
    
                         !float_near_abs_eps_array(out_ref, out_new, EPS, len));
    
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      229390
          randomize_complex(in, 16384, AVComplexDouble, SCALE_NOOP);
    
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      168
          CHECK_TEMPLATE("double_fft", AV_TX_DOUBLE_FFT, 0, AVComplexDouble, double, check_lens,
    
                         !double_near_abs_eps_array(out_ref, out_new, EPS, len*2));
    
      14
          av_free(in);
    
      14
          av_free(out_ref);
    
      14
          av_free(out_new);
    
      }

Line	Branch	Exec	Source
1			/*
2			* This file is part of FFmpeg.
3			*
4			* FFmpeg is free software; you can redistribute it and/or modify
5			* it under the terms of the GNU General Public License as published by
6			* the Free Software Foundation; either version 2 of the License, or
7			* (at your option) any later version.
8			*
9			* FFmpeg 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
12			* GNU General Public License for more details.
13			*
14			* You should have received a copy of the GNU General Public License along
15			* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
16			* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17			*/
18
19			#include "libavutil/mem.h"
20			#include "libavutil/mem_internal.h"
21			#include "libavutil/tx.h"
22			#include "libavutil/error.h"
23
24			#include "checkasm.h"
25
26			#include <stdlib.h>
27
28			#define EPS 0.0005
29
30			#define SCALE_NOOP(x) (x)
31			#define SCALE_INT20(x) (av_clip64(lrintf((x) * 2147483648.0), INT32_MIN, INT32_MAX) >> 12)
32
33			#define randomize_complex(BUF, LEN, TYPE, SCALE) \
34			do { \
35			TYPE buf = (TYPE )BUF; \
36			for (int i = 0; i < LEN; i++) { \
37			double fre = (double)rnd() / UINT_MAX; \
38			double fim = (double)rnd() / UINT_MAX; \
39			buf[i] = (TYPE){ SCALE(fre), SCALE(fim) }; \
40			} \
41			} while (0)
42
43			static const int check_lens[] = {
44			2, 4, 8, 16, 32, 64, 120, 960, 1024, 1920, 16384,
45			};
46
47			static AVTXContext tx_refs[AV_TX_NB][2 / Direction */][FF_ARRAY_ELEMS(check_lens)] = { 0 };
48
49		1	void checkasm_uninit_tx(void)
50			{
51	2/2 ✓ Branch 0 taken 18 times. ✓ Branch 1 taken 1 times.	19	for (int i = 0; i < FF_ARRAY_ELEMS(tx_refs); i++)
52	2/2 ✓ Branch 0 taken 36 times. ✓ Branch 1 taken 18 times.	54	for (int j = 0; j < FF_ARRAY_ELEMS(*tx_refs); j++)
53	2/2 ✓ Branch 0 taken 396 times. ✓ Branch 1 taken 36 times.	432	for (int k = 0; k < FF_ARRAY_ELEMS(**tx_refs); k++)
54		396	av_tx_uninit(&tx_refs[i][j][k]);
55		1	}
56
57			#define CHECK_TEMPLATE(PREFIX, TYPE, DIR, DATA_TYPE, SCALE_TYPE, LENGTHS, CHECK_EXPRESSION) \
58			do { \
59			int err; \
60			AVTXContext *tx; \
61			av_tx_fn fn; \
62			int num_checks = 0; \
63			int last_check = 0; \
64			\
65			for (int i = 0; i < FF_ARRAY_ELEMS(LENGTHS); i++) { \
66			int len = LENGTHS[i]; \
67			const SCALE_TYPE scale = 1.0 / len; \
68			\
69			if ((err = av_tx_init(&tx, &fn, TYPE, DIR, len, &scale, 0x0)) < 0) { \
70			fprintf(stderr, "av_tx: %s\n", av_err2str(err)); \
71			return; \
72			} \
73			\
74			if (check_func(fn, PREFIX "_%i", len)) { \
75			AVTXContext *tx_ref = tx_refs[TYPE][DIR][i]; \
76			if (!tx_ref) \
77			tx_ref = tx; \
78			num_checks++; \
79			last_check = len; \
80			call_ref(tx_ref, out_ref, in, sizeof(DATA_TYPE)); \
81			call_new(tx, out_new, in, sizeof(DATA_TYPE)); \
82			if (CHECK_EXPRESSION) { \
83			fail(); \
84			av_tx_uninit(&tx); \
85			break; \
86			} \
87			bench_new(tx, out_new, in, sizeof(DATA_TYPE)); \
88			av_tx_uninit(&tx_refs[TYPE][DIR][i]); \
89			tx_refs[TYPE][DIR][i] = tx; \
90			} else { \
91			av_tx_uninit(&tx); \
92			} \
93			} \
94			\
95			if (num_checks == 1) \
96			report(PREFIX "_%i", last_check); \
97			else if (num_checks) \
98			report(PREFIX); \
99			} while (0)
100
101		14	void checkasm_check_av_tx(void)
102			{
103		14	declare_func(void, AVTXContext tx, void out, void *in, ptrdiff_t stride);
104
105		14	void in = av_malloc(163842*8);
106		14	void out_ref = av_malloc(163842*8);
107		14	void out_new = av_malloc(163842*8);
108
109	2/2 ✓ Branch 2 taken 229376 times. ✓ Branch 3 taken 14 times.	229390	randomize_complex(in, 16384, AVComplexFloat, SCALE_NOOP);
110	14/34 ✗ Branch 1 not taken. ✓ Branch 2 taken 154 times. ✓ Branch 6 taken 28 times. ✓ Branch 7 taken 126 times. ✓ Branch 8 taken 11 times. ✓ Branch 9 taken 17 times. ✗ Branch 12 not taken. ✓ Branch 13 taken 28 times. ✗ Branch 20 not taken. ✓ Branch 21 taken 28 times. ✗ Branch 25 not taken. ✓ Branch 26 taken 28 times. ✗ Branch 29 not taken. ✗ Branch 30 not taken. ✗ Branch 65 not taken. ✗ Branch 66 not taken. ✗ Branch 67 not taken. ✗ Branch 68 not taken. ✗ Branch 69 not taken. ✗ Branch 70 not taken. ✗ Branch 71 not taken. ✗ Branch 72 not taken. ✗ Branch 75 not taken. ✗ Branch 76 not taken. ✗ Branch 78 not taken. ✗ Branch 79 not taken. ✗ Branch 83 not taken. ✗ Branch 84 not taken. ✓ Branch 92 taken 154 times. ✓ Branch 93 taken 14 times. ✓ Branch 94 taken 1 times. ✓ Branch 95 taken 13 times. ✓ Branch 97 taken 5 times. ✓ Branch 98 taken 8 times.	168	CHECK_TEMPLATE("float_fft", AV_TX_FLOAT_FFT, 0, AVComplexFloat, float, check_lens,
111			!float_near_abs_eps_array(out_ref, out_new, EPS, len*2));
112
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114			!float_near_abs_eps_array(out_ref, out_new, EPS, len));
115
116	2/2 ✓ Branch 2 taken 229376 times. ✓ Branch 3 taken 14 times.	229390	randomize_complex(in, 16384, AVComplexDouble, SCALE_NOOP);
117	12/34 ✗ Branch 1 not taken. ✓ Branch 2 taken 154 times. ✓ Branch 6 taken 11 times. ✓ Branch 7 taken 143 times. ✓ Branch 8 taken 11 times. ✗ Branch 9 not taken. ✗ Branch 12 not taken. ✓ Branch 13 taken 11 times. ✗ Branch 20 not taken. ✓ Branch 21 taken 11 times. ✗ Branch 25 not taken. ✓ Branch 26 taken 11 times. ✗ Branch 29 not taken. ✗ Branch 30 not taken. ✗ Branch 65 not taken. ✗ Branch 66 not taken. ✗ Branch 67 not taken. ✗ Branch 68 not taken. ✗ Branch 69 not taken. ✗ Branch 70 not taken. ✗ Branch 71 not taken. ✗ Branch 72 not taken. ✗ Branch 75 not taken. ✗ Branch 76 not taken. ✗ Branch 78 not taken. ✗ Branch 79 not taken. ✗ Branch 83 not taken. ✗ Branch 84 not taken. ✓ Branch 92 taken 154 times. ✓ Branch 93 taken 14 times. ✗ Branch 94 not taken. ✓ Branch 95 taken 14 times. ✓ Branch 97 taken 1 times. ✓ Branch 98 taken 13 times.	168	CHECK_TEMPLATE("double_fft", AV_TX_DOUBLE_FFT, 0, AVComplexDouble, double, check_lens,
118			!double_near_abs_eps_array(out_ref, out_new, EPS, len*2));
119
120		14	av_free(in);
121		14	av_free(out_ref);
122		14	av_free(out_new);
123			}
124

Function (Line)	Call count	Block coverage
checkasm_check_av_tx (line 101)	called 14 times, returned 14 times	34.0%
checkasm_uninit_tx (line 49)	called 1 time, returned 1 time	100.0%