FFmpeg coverage

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavcodec/synth_filter.c	Lines:	103	103	100.0 %
Date:	2020-10-23 17:01:47	Branches:	24	24	100.0 %


/*
 * copyright (c) 2008 Michael Niedermayer <michaelni@gmx.at>
 * Copyright (C) 2016 foo86
 *
 * 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
 */

#include "fft.h"
#include "dcadct.h"
#include "dcamath.h"
#include "synth_filter.h"

static void synth_filter_float(FFTContext *imdct,
                               float *synth_buf_ptr, int *synth_buf_offset,
                               float synth_buf2[32], const float window[512],
                               float out[32], const float in[32], float scale)
{
    float *synth_buf = synth_buf_ptr + *synth_buf_offset;
    int i, j;

    imdct->imdct_half(imdct, synth_buf, in);

    for (i = 0; i < 16; i++) {
        float a = synth_buf2[i     ];
        float b = synth_buf2[i + 16];
        float c = 0;
        float d = 0;
        for (j = 0; j < 512 - *synth_buf_offset; j += 64) {
            a += window[i + j     ] * (-synth_buf[15 - i + j      ]);
            b += window[i + j + 16] * ( synth_buf[     i + j      ]);
            c += window[i + j + 32] * ( synth_buf[16 + i + j      ]);
            d += window[i + j + 48] * ( synth_buf[31 - i + j      ]);
        }
        for (     ; j < 512; j += 64) {
            a += window[i + j     ] * (-synth_buf[15 - i + j - 512]);
            b += window[i + j + 16] * ( synth_buf[     i + j - 512]);
            c += window[i + j + 32] * ( synth_buf[16 + i + j - 512]);
            d += window[i + j + 48] * ( synth_buf[31 - i + j - 512]);
        }
        out[i     ] = a * scale;
        out[i + 16] = b * scale;
        synth_buf2[i     ] = c;
        synth_buf2[i + 16] = d;
    }

    *synth_buf_offset = (*synth_buf_offset - 32) & 511;
}

static void synth_filter_float_64(FFTContext *imdct,
                                  float *synth_buf_ptr, int *synth_buf_offset,
                                  float synth_buf2[64], const float window[1024],
                                  float out[64], const float in[64], float scale)
{
    float *synth_buf = synth_buf_ptr + *synth_buf_offset;
    int i, j;

    imdct->imdct_half(imdct, synth_buf, in);

    for (i = 0; i < 32; i++) {
        float a = synth_buf2[i     ];
        float b = synth_buf2[i + 32];
        float c = 0;
        float d = 0;
        for (j = 0; j < 1024 - *synth_buf_offset; j += 128) {
            a += window[i + j     ] * (-synth_buf[31 - i + j       ]);
            b += window[i + j + 32] * ( synth_buf[     i + j       ]);
            c += window[i + j + 64] * ( synth_buf[32 + i + j       ]);
            d += window[i + j + 96] * ( synth_buf[63 - i + j       ]);
        }
        for (     ; j < 1024; j += 128) {
            a += window[i + j     ] * (-synth_buf[31 - i + j - 1024]);
            b += window[i + j + 32] * ( synth_buf[     i + j - 1024]);
            c += window[i + j + 64] * ( synth_buf[32 + i + j - 1024]);
            d += window[i + j + 96] * ( synth_buf[63 - i + j - 1024]);
        }
        out[i     ] = a * scale;
        out[i + 32] = b * scale;
        synth_buf2[i     ] = c;
        synth_buf2[i + 32] = d;
    }

    *synth_buf_offset = (*synth_buf_offset - 64) & 1023;
}

static void synth_filter_fixed(DCADCTContext *imdct,
                               int32_t *synth_buf_ptr, int *synth_buf_offset,
                               int32_t synth_buf2[32], const int32_t window[512],
                               int32_t out[32], const int32_t in[32])
{
    int32_t *synth_buf = synth_buf_ptr + *synth_buf_offset;
    int i, j;

    imdct->imdct_half[0](synth_buf, in);

    for (i = 0; i < 16; i++) {
        int64_t a = synth_buf2[i     ] * (INT64_C(1) << 21);
        int64_t b = synth_buf2[i + 16] * (INT64_C(1) << 21);
        int64_t c = 0;
        int64_t d = 0;
        for (j = 0; j < 512 - *synth_buf_offset; j += 64) {
            a += (int64_t)window[i + j     ] * synth_buf[     i + j      ];
            b += (int64_t)window[i + j + 16] * synth_buf[15 - i + j      ];
            c += (int64_t)window[i + j + 32] * synth_buf[16 + i + j      ];
            d += (int64_t)window[i + j + 48] * synth_buf[31 - i + j      ];
        }
        for (     ; j < 512; j += 64) {
            a += (int64_t)window[i + j     ] * synth_buf[     i + j - 512];
            b += (int64_t)window[i + j + 16] * synth_buf[15 - i + j - 512];
            c += (int64_t)window[i + j + 32] * synth_buf[16 + i + j - 512];
            d += (int64_t)window[i + j + 48] * synth_buf[31 - i + j - 512];
        }
        out[i     ] = clip23(norm21(a));
        out[i + 16] = clip23(norm21(b));
        synth_buf2[i     ] = norm21(c);
        synth_buf2[i + 16] = norm21(d);
    }

    *synth_buf_offset = (*synth_buf_offset - 32) & 511;
}

static void synth_filter_fixed_64(DCADCTContext *imdct,
                                  int32_t *synth_buf_ptr, int *synth_buf_offset,
                                  int32_t synth_buf2[64], const int32_t window[1024],
                                  int32_t out[64], const int32_t in[64])
{
    int32_t *synth_buf = synth_buf_ptr + *synth_buf_offset;
    int i, j;

    imdct->imdct_half[1](synth_buf, in);

    for (i = 0; i < 32; i++) {
        int64_t a = synth_buf2[i     ] * (INT64_C(1) << 20);
        int64_t b = synth_buf2[i + 32] * (INT64_C(1) << 20);
        int64_t c = 0;
        int64_t d = 0;
        for (j = 0; j < 1024 - *synth_buf_offset; j += 128) {
            a += (int64_t)window[i + j     ] * synth_buf[     i + j       ];
            b += (int64_t)window[i + j + 32] * synth_buf[31 - i + j       ];
            c += (int64_t)window[i + j + 64] * synth_buf[32 + i + j       ];
            d += (int64_t)window[i + j + 96] * synth_buf[63 - i + j       ];
        }
        for (     ; j < 1024; j += 128) {
            a += (int64_t)window[i + j     ] * synth_buf[     i + j - 1024];
            b += (int64_t)window[i + j + 32] * synth_buf[31 - i + j - 1024];
            c += (int64_t)window[i + j + 64] * synth_buf[32 + i + j - 1024];
            d += (int64_t)window[i + j + 96] * synth_buf[63 - i + j - 1024];
        }
        out[i     ] = clip23(norm20(a));
        out[i + 32] = clip23(norm20(b));
        synth_buf2[i     ] = norm20(c);
        synth_buf2[i + 32] = norm20(d);
    }

    *synth_buf_offset = (*synth_buf_offset - 64) & 1023;
}

av_cold void ff_synth_filter_init(SynthFilterContext *c)
{
    c->synth_filter_float    = synth_filter_float;
    c->synth_filter_float_64 = synth_filter_float_64;
    c->synth_filter_fixed    = synth_filter_fixed;
    c->synth_filter_fixed_64 = synth_filter_fixed_64;

    if (ARCH_AARCH64)
        ff_synth_filter_init_aarch64(c);
    if (ARCH_ARM)
        ff_synth_filter_init_arm(c);
    if (ARCH_X86)
        ff_synth_filter_init_x86(c);
}


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			/*
2			* copyright (c) 2008 Michael Niedermayer <michaelni@gmx.at>
3			* Copyright (C) 2016 foo86
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			#include "fft.h"
23			#include "dcadct.h"
24			#include "dcamath.h"
25			#include "synth_filter.h"
26
27		50220	static void synth_filter_float(FFTContext *imdct,
28			float synth_buf_ptr, int synth_buf_offset,
29			float synth_buf2[32], const float window[512],
30			float out[32], const float in[32], float scale)
31			{
32		50220	float synth_buf = synth_buf_ptr + synth_buf_offset;
33			int i, j;
34
35		50220	imdct->imdct_half(imdct, synth_buf, in);
36
37	✓✓	853740	for (i = 0; i < 16; i++) {
38		803520	float a = synth_buf2[i ];
39		803520	float b = synth_buf2[i + 16];
40		803520	float c = 0;
41		803520	float d = 0;
42	✓✓	4419072	for (j = 0; j < 512 - *synth_buf_offset; j += 64) {
43		3615552	a += window[i + j ] * (-synth_buf[15 - i + j ]);
44		3615552	b += window[i + j + 16] * ( synth_buf[ i + j ]);
45		3615552	c += window[i + j + 32] * ( synth_buf[16 + i + j ]);
46		3615552	d += window[i + j + 48] * ( synth_buf[31 - i + j ]);
47			}
48	✓✓	3616128	for ( ; j < 512; j += 64) {
49		2812608	a += window[i + j ] * (-synth_buf[15 - i + j - 512]);
50		2812608	b += window[i + j + 16] * ( synth_buf[ i + j - 512]);
51		2812608	c += window[i + j + 32] * ( synth_buf[16 + i + j - 512]);
52		2812608	d += window[i + j + 48] * ( synth_buf[31 - i + j - 512]);
53			}
54		803520	out[i ] = a * scale;
55		803520	out[i + 16] = b * scale;
56		803520	synth_buf2[i ] = c;
57		803520	synth_buf2[i + 16] = d;
58			}
59
60		50220	synth_buf_offset = (synth_buf_offset - 32) & 511;
61		50220	}
62
63		3136	static void synth_filter_float_64(FFTContext *imdct,
64			float synth_buf_ptr, int synth_buf_offset,
65			float synth_buf2[64], const float window[1024],
66			float out[64], const float in[64], float scale)
67			{
68		3136	float synth_buf = synth_buf_ptr + synth_buf_offset;
69			int i, j;
70
71		3136	imdct->imdct_half(imdct, synth_buf, in);
72
73	✓✓	103488	for (i = 0; i < 32; i++) {
74		100352	float a = synth_buf2[i ];
75		100352	float b = synth_buf2[i + 32];
76		100352	float c = 0;
77		100352	float d = 0;
78	✓✓	551936	for (j = 0; j < 1024 - *synth_buf_offset; j += 128) {
79		451584	a += window[i + j ] * (-synth_buf[31 - i + j ]);
80		451584	b += window[i + j + 32] * ( synth_buf[ i + j ]);
81		451584	c += window[i + j + 64] * ( synth_buf[32 + i + j ]);
82		451584	d += window[i + j + 96] * ( synth_buf[63 - i + j ]);
83			}
84	✓✓	451584	for ( ; j < 1024; j += 128) {
85		351232	a += window[i + j ] * (-synth_buf[31 - i + j - 1024]);
86		351232	b += window[i + j + 32] * ( synth_buf[ i + j - 1024]);
87		351232	c += window[i + j + 64] * ( synth_buf[32 + i + j - 1024]);
88		351232	d += window[i + j + 96] * ( synth_buf[63 - i + j - 1024]);
89			}
90		100352	out[i ] = a * scale;
91		100352	out[i + 32] = b * scale;
92		100352	synth_buf2[i ] = c;
93		100352	synth_buf2[i + 32] = d;
94			}
95
96		3136	synth_buf_offset = (synth_buf_offset - 64) & 1023;
97		3136	}
98
99		117376	static void synth_filter_fixed(DCADCTContext *imdct,
100			int32_t synth_buf_ptr, int synth_buf_offset,
101			int32_t synth_buf2[32], const int32_t window[512],
102			int32_t out[32], const int32_t in[32])
103			{
104		117376	int32_t synth_buf = synth_buf_ptr + synth_buf_offset;
105			int i, j;
106
107		117376	imdct->imdct_half[0](synth_buf, in);
108
109	✓✓	1995392	for (i = 0; i < 16; i++) {
110		1878016	int64_t a = synth_buf2[i ] * (INT64_C(1) << 21);
111		1878016	int64_t b = synth_buf2[i + 16] * (INT64_C(1) << 21);
112		1878016	int64_t c = 0;
113		1878016	int64_t d = 0;
114	✓✓	10329088	for (j = 0; j < 512 - *synth_buf_offset; j += 64) {
115		8451072	a += (int64_t)window[i + j ] * synth_buf[ i + j ];
116		8451072	b += (int64_t)window[i + j + 16] * synth_buf[15 - i + j ];
117		8451072	c += (int64_t)window[i + j + 32] * synth_buf[16 + i + j ];
118		8451072	d += (int64_t)window[i + j + 48] * synth_buf[31 - i + j ];
119			}
120	✓✓	8451072	for ( ; j < 512; j += 64) {
121		6573056	a += (int64_t)window[i + j ] * synth_buf[ i + j - 512];
122		6573056	b += (int64_t)window[i + j + 16] * synth_buf[15 - i + j - 512];
123		6573056	c += (int64_t)window[i + j + 32] * synth_buf[16 + i + j - 512];
124		6573056	d += (int64_t)window[i + j + 48] * synth_buf[31 - i + j - 512];
125			}
126		1878016	out[i ] = clip23(norm21(a));
127		1878016	out[i + 16] = clip23(norm21(b));
128		1878016	synth_buf2[i ] = norm21(c);
129		1878016	synth_buf2[i + 16] = norm21(d);
130			}
131
132		117376	synth_buf_offset = (synth_buf_offset - 32) & 511;
133		117376	}
134
135		6720	static void synth_filter_fixed_64(DCADCTContext *imdct,
136			int32_t synth_buf_ptr, int synth_buf_offset,
137			int32_t synth_buf2[64], const int32_t window[1024],
138			int32_t out[64], const int32_t in[64])
139			{
140		6720	int32_t synth_buf = synth_buf_ptr + synth_buf_offset;
141			int i, j;
142
143		6720	imdct->imdct_half[1](synth_buf, in);
144
145	✓✓	221760	for (i = 0; i < 32; i++) {
146		215040	int64_t a = synth_buf2[i ] * (INT64_C(1) << 20);
147		215040	int64_t b = synth_buf2[i + 32] * (INT64_C(1) << 20);
148		215040	int64_t c = 0;
149		215040	int64_t d = 0;
150	✓✓	1182720	for (j = 0; j < 1024 - *synth_buf_offset; j += 128) {
151		967680	a += (int64_t)window[i + j ] * synth_buf[ i + j ];
152		967680	b += (int64_t)window[i + j + 32] * synth_buf[31 - i + j ];
153		967680	c += (int64_t)window[i + j + 64] * synth_buf[32 + i + j ];
154		967680	d += (int64_t)window[i + j + 96] * synth_buf[63 - i + j ];
155			}
156	✓✓	967680	for ( ; j < 1024; j += 128) {
157		752640	a += (int64_t)window[i + j ] * synth_buf[ i + j - 1024];
158		752640	b += (int64_t)window[i + j + 32] * synth_buf[31 - i + j - 1024];
159		752640	c += (int64_t)window[i + j + 64] * synth_buf[32 + i + j - 1024];
160		752640	d += (int64_t)window[i + j + 96] * synth_buf[63 - i + j - 1024];
161			}
162		215040	out[i ] = clip23(norm20(a));
163		215040	out[i + 32] = clip23(norm20(b));
164		215040	synth_buf2[i ] = norm20(c);
165		215040	synth_buf2[i + 32] = norm20(d);
166			}
167
168		6720	synth_buf_offset = (synth_buf_offset - 64) & 1023;
169		6720	}
170
171		105	av_cold void ff_synth_filter_init(SynthFilterContext *c)
172			{
173		105	c->synth_filter_float = synth_filter_float;
174		105	c->synth_filter_float_64 = synth_filter_float_64;
175		105	c->synth_filter_fixed = synth_filter_fixed;
176		105	c->synth_filter_fixed_64 = synth_filter_fixed_64;
177
178			if (ARCH_AARCH64)
179			ff_synth_filter_init_aarch64(c);
180			if (ARCH_ARM)
181			ff_synth_filter_init_arm(c);
182			if (ARCH_X86)
183		105	ff_synth_filter_init_x86(c);
184		105	}