/src/ffmpeg/libswscale/ops_internal.h
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1 | | /** |
2 | | * Copyright (C) 2025 Niklas Haas |
3 | | * |
4 | | * This file is part of FFmpeg. |
5 | | * |
6 | | * FFmpeg 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 | | * FFmpeg 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 FFmpeg; if not, write to the Free Software |
18 | | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
19 | | */ |
20 | | |
21 | | #ifndef SWSCALE_OPS_INTERNAL_H |
22 | | #define SWSCALE_OPS_INTERNAL_H |
23 | | |
24 | | #include "libavutil/mem_internal.h" |
25 | | |
26 | | #include "ops.h" |
27 | | #include "ops_dispatch.h" |
28 | | |
29 | 0 | #define Q(N) ((AVRational64) { N, 1 }) |
30 | | |
31 | | static inline void ff_sws_pack_decode(const uint8_t pattern[4], |
32 | | uint64_t mask[4], int shift[4]) |
33 | 0 | { |
34 | 0 | int size = 0; |
35 | 0 | for (int i = 0; i < 4; i++) |
36 | 0 | size += pattern[i]; |
37 | 0 | for (int i = 0; i < 4; i++) { |
38 | 0 | const int bits = pattern[i]; |
39 | 0 | mask[i] = (UINT64_C(1) << bits) - 1; |
40 | 0 | shift[i] = (i ? shift[i - 1] : size) - bits; |
41 | 0 | } |
42 | 0 | } Unexecuted instantiation: format.c:ff_sws_pack_decode Unexecuted instantiation: ops.c:ff_sws_pack_decode Unexecuted instantiation: ops_dispatch.c:ff_sws_pack_decode Unexecuted instantiation: ops_memcpy.c:ff_sws_pack_decode Unexecuted instantiation: ops_optimizer.c:ff_sws_pack_decode Unexecuted instantiation: uops_backend.c:ff_sws_pack_decode Unexecuted instantiation: ops_chain.c:ff_sws_pack_decode |
43 | | |
44 | | /** |
45 | | * Split an op list into two at the given index. The split will be mediated |
46 | | * by a set of planar read/write operations, plus a swizzle (if necessary) |
47 | | * to re-order only used components. If a split is performed, both output |
48 | | * lists will be optimized before returning. |
49 | | * |
50 | | * @param ops1 The first part of the split op list. Will be modified in-place. |
51 | | * @param ops2 The second part of the split op list will be returned here, or |
52 | | * NULL if no split was necessary. |
53 | | * @param index The index of the operation to split before. The operation |
54 | | * itself will be absent from `ops1` and instead moved to the |
55 | | * start of `ops2`. |
56 | | * |
57 | | * Returnse 0 or a negative error code. |
58 | | */ |
59 | | int ff_sws_op_list_split_at(SwsOpList *ops1, SwsOpList **ops2, int index); |
60 | | |
61 | | /** |
62 | | * Reduce an op list into a reduced subset that operates only on a given |
63 | | * subset of planes. No effect if the output is not planar, or if the plane |
64 | | * mask is empty or equal to all planes. |
65 | | * |
66 | | * @param ops1 Updated in-place to contain only the selected planes. |
67 | | * @param ops2 The removed remainder is returned here, or NULL if no-op. |
68 | | * @param planes A mask of the plane indices to keep. |
69 | | * |
70 | | * Returns 0 or a negative error code. |
71 | | */ |
72 | | int ff_sws_op_list_split_planes(SwsOpList *ops1, SwsOpList **ops2, SwsCompMask planes); |
73 | | |
74 | | #endif /* SWSCALE_OPS_INTERNAL_H */ |