FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/x86/h264chroma_init.c
Date: 2026-01-16 07:34:38
Exec Total Coverage
Lines: 23 23 100.0%
Functions: 1 1 100.0%
Branches: 23 26 88.5%
Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (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 GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include <stdint.h>
20
21 #include "config.h"
22 #include "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/x86/cpu.h"
25 #include "libavcodec/h264chroma.h"
26
27 void ff_put_h264_chroma_mc2_mmxext (uint8_t *dst, const uint8_t *src,
28 ptrdiff_t stride, int h, int x, int y);
29 void ff_avg_h264_chroma_mc2_mmxext (uint8_t *dst, const uint8_t *src,
30 ptrdiff_t stride, int h, int x, int y);
31
32 void ff_put_h264_chroma_mc8_rnd_ssse3(uint8_t *dst, const uint8_t *src,
33 ptrdiff_t stride, int h, int x, int y);
34 void ff_put_h264_chroma_mc4_ssse3 (uint8_t *dst, const uint8_t *src,
35 ptrdiff_t stride, int h, int x, int y);
36
37 void ff_avg_h264_chroma_mc8_rnd_ssse3(uint8_t *dst, const uint8_t *src,
38 ptrdiff_t stride, int h, int x, int y);
39 void ff_avg_h264_chroma_mc4_ssse3 (uint8_t *dst, const uint8_t *src,
40 ptrdiff_t stride, int h, int x, int y);
41
42 #define CHROMA_MC(OP, NUM, DEPTH, OPT) \
43 void ff_ ## OP ## _h264_chroma_mc ## NUM ## _ ## DEPTH ## _ ## OPT \
44 (uint8_t *dst, const uint8_t *src, \
45 ptrdiff_t stride, int h, int x, int y);
46
47 CHROMA_MC(put, 2, 10, mmxext)
48 CHROMA_MC(avg, 2, 10, mmxext)
49 CHROMA_MC(put, 4, 10, mmxext)
50 CHROMA_MC(avg, 4, 10, mmxext)
51 CHROMA_MC(put, 8, 10, sse2)
52 CHROMA_MC(avg, 8, 10, sse2)
53 CHROMA_MC(put, 8, 10, avx)
54 CHROMA_MC(avg, 8, 10, avx)
55
56 1361 av_cold void ff_h264chroma_init_x86(H264ChromaContext *c, int bit_depth)
57 {
58 1361 int high_bit_depth = bit_depth > 8;
59 1361 int cpu_flags = av_get_cpu_flags();
60
61
4/4
✓ Branch 0 taken 257 times.
✓ Branch 1 taken 1104 times.
✓ Branch 2 taken 221 times.
✓ Branch 3 taken 36 times.
 1361 if (EXTERNAL_MMXEXT(cpu_flags) && !high_bit_depth) {
62 221 c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_mmxext;
63 221 c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_mmxext;
64 }
65
66
5/6
✓ Branch 0 taken 257 times.
✓ Branch 1 taken 1104 times.
✓ Branch 2 taken 36 times.
✓ Branch 3 taken 221 times.
✓ Branch 4 taken 36 times.
✗ Branch 5 not taken.
 1361 if (EXTERNAL_MMXEXT(cpu_flags) && bit_depth > 8 && bit_depth <= 10) {
67 36 c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_10_mmxext;
68 36 c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_10_mmxext;
69 36 c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_10_mmxext;
70 36 c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_10_mmxext;
71 }
72
73
5/6
✓ Branch 0 taken 251 times.
✓ Branch 1 taken 1110 times.
✓ Branch 2 taken 32 times.
✓ Branch 3 taken 219 times.
✓ Branch 4 taken 32 times.
✗ Branch 5 not taken.
 1361 if (EXTERNAL_SSE2(cpu_flags) && bit_depth > 8 && bit_depth <= 10) {
74 32 c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_10_sse2;
75 32 c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_10_sse2;
76 }
77
78
4/4
✓ Branch 0 taken 245 times.
✓ Branch 1 taken 1116 times.
✓ Branch 2 taken 217 times.
✓ Branch 3 taken 28 times.
 1361 if (EXTERNAL_SSSE3(cpu_flags) && !high_bit_depth) {
79 217 c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_rnd_ssse3;
80 217 c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_rnd_ssse3;
81 217 c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_ssse3;
82 217 c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_ssse3;
83 }
84
85
5/6
✓ Branch 0 taken 230 times.
✓ Branch 1 taken 1131 times.
✓ Branch 2 taken 18 times.
✓ Branch 3 taken 212 times.
✓ Branch 4 taken 18 times.
✗ Branch 5 not taken.
 1361 if (EXTERNAL_AVX(cpu_flags) && bit_depth > 8 && bit_depth <= 10) {
86 // AVX implies !cache64.
87 // TODO: Port cache(32|64) detection from x264.
88 18 c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_10_avx;
89 18 c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_10_avx;
90 }
91 1361 }
92