FFmpeg coverage

Directory:	../../../ffmpeg/
File:	src/libswresample/resample_template.c
Date:	2024-11-20 23:03:26

	Exec	Total	Coverage
Lines:	66	71	93.0%
Functions:	6	8	75.0%
Branches:	14	16	87.5%

  
      Line
      Branch
      Exec
      Source
    
      /*
    
       * audio resampling
    
       * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
    
       *
    
       * 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
    
       */
    
      /**
    
       * @file
    
       * audio resampling
    
       * @author Michael Niedermayer <michaelni@gmx.at>
    
       */
    
      #if defined(TEMPLATE_RESAMPLE_DBL)
    
      #    define RENAME(N) N ## _double
    
      #    define FILTER_SHIFT 0
    
      #    define DELEM  double
    
      #    define FELEM  double
    
      #    define FELEM2 double
    
      #    define FOFFSET 0
    
      #    define OUT(d, v) d = v
    
      #elif    defined(TEMPLATE_RESAMPLE_FLT)
    
      #    define RENAME(N) N ## _float
    
      #    define FILTER_SHIFT 0
    
      #    define DELEM  float
    
      #    define FELEM  float
    
      #    define FELEM2 float
    
      #    define FOFFSET 0
    
      #    define OUT(d, v) d = v
    
      #elif defined(TEMPLATE_RESAMPLE_S32)
    
      #    define RENAME(N) N ## _int32
    
      #    define FILTER_SHIFT 30
    
      #    define DELEM  int32_t
    
      #    define FELEM  int32_t
    
      #    define FELEM2 int64_t
    
      #    define FELEM_MAX INT32_MAX
    
      #    define FELEM_MIN INT32_MIN
    
      #    define FOFFSET (1<<(FILTER_SHIFT-1))
    
      #    define OUT(d, v) (d) = av_clipl_int32((v)>>FILTER_SHIFT)
    
      #elif    defined(TEMPLATE_RESAMPLE_S16)
    
      #    define RENAME(N) N ## _int16
    
      #    define FILTER_SHIFT 15
    
      #    define DELEM  int16_t
    
      #    define FELEM  int16_t
    
      #    define FELEM2 int32_t
    
      #    define FELEML int64_t
    
      #    define FELEM_MAX INT16_MAX
    
      #    define FELEM_MIN INT16_MIN
    
      #    define FOFFSET (1<<(FILTER_SHIFT-1))
    
      #    define OUT(d, v) (d) = av_clip_int16((v)>>FILTER_SHIFT)
    
      #endif
    
      160
      static void RENAME(resample_one)(void *dest, const void *source,
    
                                       int dst_size, int64_t index2, int64_t incr)
    
      {
    
      160
          DELEM *dst = dest;
    
      160
          const DELEM *src = source;
    
          int dst_index;
    
        2/2✓ Branch 0 taken 112896 times.
✓ Branch 1 taken 80 times.

      225952
          for (dst_index = 0; dst_index < dst_size; dst_index++) {
    
      225792
              dst[dst_index] = src[index2 >> 32];
    
      225792
              index2 += incr;
    
          }
    
      160
      }
    
      181800
      static int RENAME(resample_common)(ResampleContext *c,
    
                                         void *dest, const void *source,
    
                                         int n, int update_ctx)
    
      {
    
      181800
          DELEM *dst = dest;
    
      181800
          const DELEM *src = source;
    
          int dst_index;
    
      181800
          int index= c->index;
    
      181800
          int frac= c->frac;
    
      181800
          int sample_index = 0;
    
        1/2✗ Branch 0 not taken.
✓ Branch 1 taken 90900 times.

      181800
          while (index >= c->phase_count) {
    
      ✗
              sample_index++;
    
      ✗
              index -= c->phase_count;
    
          }
    
        2/2✓ Branch 0 taken 31980691 times.
✓ Branch 1 taken 90900 times.

      64143182
          for (dst_index = 0; dst_index < n; dst_index++) {
    
      63961382
              FELEM *filter = ((FELEM *) c->filter_bank) + c->filter_alloc * index;
    
      63961382
              FELEM2 val = FOFFSET;
    
      63961382
              FELEM2 val2= 0;
    
              int i;
    
        2/2✓ Branch 0 taken 574515605 times.
✓ Branch 1 taken 31980691 times.

      1212992592
              for (i = 0; i + 1 < c->filter_length; i+=2) {
    
      1149031210
                  val  += src[sample_index + i    ] * (FELEM2)filter[i    ];
    
      1149031210
                  val2 += src[sample_index + i + 1] * (FELEM2)filter[i + 1];
    
              }
    
        1/2✗ Branch 0 not taken.
✓ Branch 1 taken 31980691 times.

      63961382
              if (i < c->filter_length)
    
      ✗
                  val  += src[sample_index + i    ] * (FELEM2)filter[i    ];
    
      #ifdef FELEML
    
      11624226
              OUT(dst[dst_index], val + (FELEML)val2);
    
      #else
    
      52337156
              OUT(dst[dst_index], val + val2);
    
      #endif
    
      63961382
              frac  += c->dst_incr_mod;
    
      63961382
              index += c->dst_incr_div;
    
        2/2✓ Branch 0 taken 2913928 times.
✓ Branch 1 taken 29066763 times.

      63961382
              if (frac >= c->src_incr) {
    
      5827856
                  frac -= c->src_incr;
    
      5827856
                  index++;
    
              }
    
        2/2✓ Branch 0 taken 21704000 times.
✓ Branch 1 taken 31980691 times.

      107369382
              while (index >= c->phase_count) {
    
      43408000
                  sample_index++;
    
      43408000
                  index -= c->phase_count;
    
              }
    
          }
    
        2/2✓ Branch 0 taken 53783 times.
✓ Branch 1 taken 37117 times.

      181800
          if(update_ctx){
    
      107566
              c->frac= frac;
    
      107566
              c->index= index;
    
          }
    
      181800
          return sample_index;
    
      }
    
      5242
      static int RENAME(resample_linear)(ResampleContext *c,
    
                                         void *dest, const void *source,
    
                                         int n, int update_ctx)
    
      {
    
      5242
          DELEM *dst = dest;
    
      5242
          const DELEM *src = source;
    
          int dst_index;
    
      5242
          int index= c->index;
    
      5242
          int frac= c->frac;
    
      5242
          int sample_index = 0;
    
      #if FILTER_SHIFT == 0
    
      2732
          double inv_src_incr = 1.0 / c->src_incr;
    
      #endif
    
      5242
          while (index >= c->phase_count) {
    
      ✗
              sample_index++;
    
      ✗
              index -= c->phase_count;
    
          }
    
      4441919
          for (dst_index = 0; dst_index < n; dst_index++) {
    
      4436677
              FELEM *filter = ((FELEM *) c->filter_bank) + c->filter_alloc * index;
    
      4436677
              FELEM2 val = FOFFSET, v2 = FOFFSET;
    
              int i;
    
      254782083
              for (i = 0; i < c->filter_length; i++) {
    
      250345406
                  val += src[sample_index + i] * (FELEM2)filter[i];
    
      250345406
                  v2  += src[sample_index + i] * (FELEM2)filter[i + c->filter_alloc];
    
              }
    
      #ifdef FELEML
    
      1158131
              val += (v2 - val) * (FELEML) frac / c->src_incr;
    
      #else
    
      #    if FILTER_SHIFT == 0
    
      2313368
              val += (v2 - val) * inv_src_incr * frac;
    
      #    else
    
      965178
              val += (v2 - val) / c->src_incr * frac;
    
      #    endif
    
      #endif
    
      4436677
              OUT(dst[dst_index], val);
    
      4436677
              frac += c->dst_incr_mod;
    
      4436677
              index += c->dst_incr_div;
    
      4436677
              if (frac >= c->src_incr) {
    
      1528899
                  frac -= c->src_incr;
    
      1528899
                  index++;
    
              }
    
      8436664
              while (index >= c->phase_count) {
    
      3999987
                  sample_index++;
    
      3999987
                  index -= c->phase_count;
    
              }
    
          }
    
      5242
          if(update_ctx){
    
      5242
              c->frac= frac;
    
      5242
              c->index= index;
    
          }
    
      5242
          return sample_index;
    
      }
    
      #undef RENAME
    
      #undef FILTER_SHIFT
    
      #undef DELEM
    
      #undef FELEM
    
      #undef FELEM2
    
      #undef FELEML
    
      #undef FELEM_MAX
    
      #undef FELEM_MIN
    
      #undef OUT
    
      #undef FOFFSET

Line	Branch	Exec	Source
1			/*
2			* audio resampling
3			* Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
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			/**
23			* @file
24			* audio resampling
25			* @author Michael Niedermayer <michaelni@gmx.at>
26			*/
27
28			#if defined(TEMPLATE_RESAMPLE_DBL)
29
30			# define RENAME(N) N ## _double
31			# define FILTER_SHIFT 0
32			# define DELEM double
33			# define FELEM double
34			# define FELEM2 double
35			# define FOFFSET 0
36			# define OUT(d, v) d = v
37
38			#elif defined(TEMPLATE_RESAMPLE_FLT)
39
40			# define RENAME(N) N ## _float
41			# define FILTER_SHIFT 0
42			# define DELEM float
43			# define FELEM float
44			# define FELEM2 float
45			# define FOFFSET 0
46			# define OUT(d, v) d = v
47
48			#elif defined(TEMPLATE_RESAMPLE_S32)
49
50			# define RENAME(N) N ## _int32
51			# define FILTER_SHIFT 30
52			# define DELEM int32_t
53			# define FELEM int32_t
54			# define FELEM2 int64_t
55			# define FELEM_MAX INT32_MAX
56			# define FELEM_MIN INT32_MIN
57			# define FOFFSET (1<<(FILTER_SHIFT-1))
58			# define OUT(d, v) (d) = av_clipl_int32((v)>>FILTER_SHIFT)
59
60			#elif defined(TEMPLATE_RESAMPLE_S16)
61
62			# define RENAME(N) N ## _int16
63			# define FILTER_SHIFT 15
64			# define DELEM int16_t
65			# define FELEM int16_t
66			# define FELEM2 int32_t
67			# define FELEML int64_t
68			# define FELEM_MAX INT16_MAX
69			# define FELEM_MIN INT16_MIN
70			# define FOFFSET (1<<(FILTER_SHIFT-1))
71			# define OUT(d, v) (d) = av_clip_int16((v)>>FILTER_SHIFT)
72
73			#endif
74
75		160	static void RENAME(resample_one)(void dest, const void source,
76			int dst_size, int64_t index2, int64_t incr)
77			{
78		160	DELEM *dst = dest;
79		160	const DELEM *src = source;
80			int dst_index;
81
82	2/2 ✓ Branch 0 taken 112896 times. ✓ Branch 1 taken 80 times.	225952	for (dst_index = 0; dst_index < dst_size; dst_index++) {
83		225792	dst[dst_index] = src[index2 >> 32];
84		225792	index2 += incr;
85			}
86		160	}
87
88		181800	static int RENAME(resample_common)(ResampleContext *c,
89			void dest, const void source,
90			int n, int update_ctx)
91			{
92		181800	DELEM *dst = dest;
93		181800	const DELEM *src = source;
94			int dst_index;
95		181800	int index= c->index;
96		181800	int frac= c->frac;
97		181800	int sample_index = 0;
98
99	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 90900 times.	181800	while (index >= c->phase_count) {
100		✗	sample_index++;
101		✗	index -= c->phase_count;
102			}
103
104	2/2 ✓ Branch 0 taken 31980691 times. ✓ Branch 1 taken 90900 times.	64143182	for (dst_index = 0; dst_index < n; dst_index++) {
105		63961382	FELEM filter = ((FELEM ) c->filter_bank) + c->filter_alloc * index;
106
107		63961382	FELEM2 val = FOFFSET;
108		63961382	FELEM2 val2= 0;
109			int i;
110	2/2 ✓ Branch 0 taken 574515605 times. ✓ Branch 1 taken 31980691 times.	1212992592	for (i = 0; i + 1 < c->filter_length; i+=2) {
111		1149031210	val += src[sample_index + i ] * (FELEM2)filter[i ];
112		1149031210	val2 += src[sample_index + i + 1] * (FELEM2)filter[i + 1];
113			}
114	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 31980691 times.	63961382	if (i < c->filter_length)
115		✗	val += src[sample_index + i ] * (FELEM2)filter[i ];
116			#ifdef FELEML
117		11624226	OUT(dst[dst_index], val + (FELEML)val2);
118			#else
119		52337156	OUT(dst[dst_index], val + val2);
120			#endif
121
122		63961382	frac += c->dst_incr_mod;
123		63961382	index += c->dst_incr_div;
124	2/2 ✓ Branch 0 taken 2913928 times. ✓ Branch 1 taken 29066763 times.	63961382	if (frac >= c->src_incr) {
125		5827856	frac -= c->src_incr;
126		5827856	index++;
127			}
128
129	2/2 ✓ Branch 0 taken 21704000 times. ✓ Branch 1 taken 31980691 times.	107369382	while (index >= c->phase_count) {
130		43408000	sample_index++;
131		43408000	index -= c->phase_count;
132			}
133			}
134
135	2/2 ✓ Branch 0 taken 53783 times. ✓ Branch 1 taken 37117 times.	181800	if(update_ctx){
136		107566	c->frac= frac;
137		107566	c->index= index;
138			}
139
140		181800	return sample_index;
141			}
142
143		5242	static int RENAME(resample_linear)(ResampleContext *c,
144			void dest, const void source,
145			int n, int update_ctx)
146			{
147		5242	DELEM *dst = dest;
148		5242	const DELEM *src = source;
149			int dst_index;
150		5242	int index= c->index;
151		5242	int frac= c->frac;
152		5242	int sample_index = 0;
153			#if FILTER_SHIFT == 0
154		2732	double inv_src_incr = 1.0 / c->src_incr;
155			#endif
156
157		5242	while (index >= c->phase_count) {
158		✗	sample_index++;
159		✗	index -= c->phase_count;
160			}
161
162		4441919	for (dst_index = 0; dst_index < n; dst_index++) {
163		4436677	FELEM filter = ((FELEM ) c->filter_bank) + c->filter_alloc * index;
164		4436677	FELEM2 val = FOFFSET, v2 = FOFFSET;
165
166			int i;
167		254782083	for (i = 0; i < c->filter_length; i++) {
168		250345406	val += src[sample_index + i] * (FELEM2)filter[i];
169		250345406	v2 += src[sample_index + i] * (FELEM2)filter[i + c->filter_alloc];
170			}
171			#ifdef FELEML
172		1158131	val += (v2 - val) * (FELEML) frac / c->src_incr;
173			#else
174			# if FILTER_SHIFT == 0
175		2313368	val += (v2 - val) * inv_src_incr * frac;
176			# else
177		965178	val += (v2 - val) / c->src_incr * frac;
178			# endif
179			#endif
180		4436677	OUT(dst[dst_index], val);
181
182		4436677	frac += c->dst_incr_mod;
183		4436677	index += c->dst_incr_div;
184		4436677	if (frac >= c->src_incr) {
185		1528899	frac -= c->src_incr;
186		1528899	index++;
187			}
188
189		8436664	while (index >= c->phase_count) {
190		3999987	sample_index++;
191		3999987	index -= c->phase_count;
192			}
193			}
194
195		5242	if(update_ctx){
196		5242	c->frac= frac;
197		5242	c->index= index;
198			}
199
200		5242	return sample_index;
201			}
202
203			#undef RENAME
204			#undef FILTER_SHIFT
205			#undef DELEM
206			#undef FELEM
207			#undef FELEM2
208			#undef FELEML
209			#undef FELEM_MAX
210			#undef FELEM_MIN
211			#undef OUT
212			#undef FOFFSET
213

Function (Line)	Call count	Block coverage
resample_common_double (line 88)	called 4065 times, returned 4065 times	90.0%
resample_common_float (line 88)	called 76090 times, returned 76090 times	90.0%
resample_common_int16 (line 88)	called 6752 times, returned 6752 times	90.0%
resample_common_int32 (line 88)	called 3993 times, returned 3993 times	90.0%
resample_one_double (line 75)	not called	0.0%
resample_one_float (line 75)	called 40 times, returned 40 times	100.0%
resample_one_int16 (line 75)	called 40 times, returned 40 times	100.0%
resample_one_int32 (line 75)	not called	0.0%