FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libswresample/x86/rematrix_init.c
Date: 2026-10-09 11:06:14
Exec Total Coverage
Lines: 36 38 94.7%
Functions: 1 1 100.0%
Branches: 19 22 86.4%

Line Branch Exec Source
1 /*
2 * Copyright (C) 2012 Michael Niedermayer (michaelni@gmx.at)
3 *
4 * This file is part of libswresample
5 *
6 * libswresample is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * libswresample is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with libswresample; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/attributes.h"
22 #include "libavutil/mem.h"
23 #include "libavutil/x86/cpu.h"
24 #include "libswresample/swresample_internal.h"
25
26 #define D(type, simd) \
27 mix_1_1_func_type ff_mix_1_1_a_## type ## _ ## simd;\
28 mix_2_1_func_type ff_mix_2_1_a_## type ## _ ## simd;
29
30 D(float, sse)
31 D(float, avx)
32 D(int16, sse2)
33
34 1889 av_cold int swri_rematrix_init_x86(struct SwrContext *s){
35 1889 int mm_flags = av_get_cpu_flags();
36 1889 int nb_in = s->used_ch_layout.nb_channels;
37 1889 int nb_out = s->out.ch_count;
38 1889 int num = nb_in * nb_out;
39 int i,j;
40
41 1889 s->mix_1_1_simd = NULL;
42 1889 s->mix_2_1_simd = NULL;
43
44
2/2
✓ Branch 0 taken 280 times.
✓ Branch 1 taken 1609 times.
1889 if (s->midbuf.fmt == AV_SAMPLE_FMT_S16P){
45
2/2
✓ Branch 0 taken 260 times.
✓ Branch 1 taken 20 times.
280 if(EXTERNAL_SSE2(mm_flags)) {
46 260 s->mix_1_1_simd = ff_mix_1_1_a_int16_sse2;
47 260 s->mix_2_1_simd = ff_mix_2_1_a_int16_sse2;
48 }
49 280 s->native_simd_matrix = av_calloc(num, 2 * sizeof(int16_t));
50
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 280 times.
280 if (!s->native_simd_matrix)
51 ✗ return AVERROR(ENOMEM);
52
53
2/2
✓ Branch 0 taken 1271 times.
✓ Branch 1 taken 280 times.
1551 for(i=0; i<nb_out; i++){
54 1271 int sh = 0;
55
2/2
✓ Branch 0 taken 5704 times.
✓ Branch 1 taken 1271 times.
6975 for(j=0; j<nb_in; j++)
56 5704 sh = FFMAX(sh, FFABS(((int*)s->native_matrix)[i * nb_in + j]));
57 1271 sh = FFMAX(av_log2(sh) - 14, 0);
58
2/2
✓ Branch 0 taken 5704 times.
✓ Branch 1 taken 1271 times.
6975 for(j=0; j<nb_in; j++) {
59 5704 ((int16_t*)s->native_simd_matrix)[2*(i * nb_in + j)+1] = 15 - sh;
60 5704 ((int16_t*)s->native_simd_matrix)[2*(i * nb_in + j)] =
61 5704 ((((int*)s->native_matrix)[i * nb_in + j]) + (1<<sh>>1)) >> sh;
62 }
63 }
64 280 s->native_simd_one.i16[1] = 14;
65 280 s->native_simd_one.i16[0] = 16384;
66
2/2
✓ Branch 0 taken 1250 times.
✓ Branch 1 taken 359 times.
1609 } else if(s->midbuf.fmt == AV_SAMPLE_FMT_FLTP){
67
2/2
✓ Branch 0 taken 1242 times.
✓ Branch 1 taken 8 times.
1250 if(EXTERNAL_SSE(mm_flags)) {
68 1242 s->mix_1_1_simd = ff_mix_1_1_a_float_sse;
69 1242 s->mix_2_1_simd = ff_mix_2_1_a_float_sse;
70 }
71
3/4
✓ Branch 0 taken 1242 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 1242 times.
✗ Branch 3 not taken.
1250 if(EXTERNAL_AVX_FAST(mm_flags)) {
72 1242 s->mix_1_1_simd = ff_mix_1_1_a_float_avx;
73 1242 s->mix_2_1_simd = ff_mix_2_1_a_float_avx;
74 }
75 1250 s->native_simd_matrix = av_calloc(num, sizeof(float));
76
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1250 times.
1250 if (!s->native_simd_matrix)
77 ✗ return AVERROR(ENOMEM);
78 1250 memcpy(s->native_simd_matrix, s->native_matrix, num * sizeof(float));
79 1250 s->native_simd_one.f = s->native_one.f;
80 }
81
82 1889 return 0;
83 }
84