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Diffstat (limited to 'apps/codecs/libcook/bytestream.h')
-rw-r--r-- | apps/codecs/libcook/bytestream.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/apps/codecs/libcook/bytestream.h b/apps/codecs/libcook/bytestream.h new file mode 100644 index 0000000000..b56f6ce743 --- /dev/null +++ b/apps/codecs/libcook/bytestream.h | |||
@@ -0,0 +1,71 @@ | |||
1 | /* | ||
2 | * Bytestream functions | ||
3 | * copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr> | ||
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 | #ifndef AVCODEC_BYTESTREAM_H | ||
23 | #define AVCODEC_BYTESTREAM_H | ||
24 | |||
25 | #include <string.h> | ||
26 | #include "libavutil/common.h" | ||
27 | #include "libavutil/intreadwrite.h" | ||
28 | |||
29 | #define DEF_T(type, name, bytes, read, write) \ | ||
30 | static av_always_inline type bytestream_get_ ## name(const uint8_t **b){\ | ||
31 | (*b) += bytes;\ | ||
32 | return read(*b - bytes);\ | ||
33 | }\ | ||
34 | static av_always_inline void bytestream_put_ ##name(uint8_t **b, const type value){\ | ||
35 | write(*b, value);\ | ||
36 | (*b) += bytes;\ | ||
37 | } | ||
38 | |||
39 | #define DEF(name, bytes, read, write) \ | ||
40 | DEF_T(unsigned int, name, bytes, read, write) | ||
41 | #define DEF64(name, bytes, read, write) \ | ||
42 | DEF_T(uint64_t, name, bytes, read, write) | ||
43 | |||
44 | DEF64(le64, 8, AV_RL64, AV_WL64) | ||
45 | DEF (le32, 4, AV_RL32, AV_WL32) | ||
46 | DEF (le24, 3, AV_RL24, AV_WL24) | ||
47 | DEF (le16, 2, AV_RL16, AV_WL16) | ||
48 | DEF64(be64, 8, AV_RB64, AV_WB64) | ||
49 | DEF (be32, 4, AV_RB32, AV_WB32) | ||
50 | DEF (be24, 3, AV_RB24, AV_WB24) | ||
51 | DEF (be16, 2, AV_RB16, AV_WB16) | ||
52 | DEF (byte, 1, AV_RB8 , AV_WB8 ) | ||
53 | |||
54 | #undef DEF | ||
55 | #undef DEF64 | ||
56 | #undef DEF_T | ||
57 | |||
58 | static av_always_inline unsigned int bytestream_get_buffer(const uint8_t **b, uint8_t *dst, unsigned int size) | ||
59 | { | ||
60 | memcpy(dst, *b, size); | ||
61 | (*b) += size; | ||
62 | return size; | ||
63 | } | ||
64 | |||
65 | static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size) | ||
66 | { | ||
67 | memcpy(*b, src, size); | ||
68 | (*b) += size; | ||
69 | } | ||
70 | |||
71 | #endif /* AVCODEC_BYTESTREAM_H */ | ||