diff options
Diffstat (limited to 'src/plugins/ffmpeg/libavcodec/h264dspenc.c')
-rw-r--r-- | src/plugins/ffmpeg/libavcodec/h264dspenc.c | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/src/plugins/ffmpeg/libavcodec/h264dspenc.c b/src/plugins/ffmpeg/libavcodec/h264dspenc.c deleted file mode 100644 index 061de5e..0000000 --- a/src/plugins/ffmpeg/libavcodec/h264dspenc.c +++ /dev/null | |||
@@ -1,81 +0,0 @@ | |||
1 | /* | ||
2 | * H.264/MPEG-4 Part 10 (Base profile) encoder. | ||
3 | * | ||
4 | * DSP functions | ||
5 | * | ||
6 | * Copyright (c) 2006 Expertisecentrum Digitale Media, UHasselt | ||
7 | * | ||
8 | * FFmpeg is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU Lesser General Public | ||
10 | * License as published by the Free Software Foundation; either | ||
11 | * version 2.1 of the License, or (at your option) any later version. | ||
12 | * | ||
13 | * FFmpeg is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
16 | * Lesser General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU Lesser General Public | ||
19 | * License along with FFmpeg; if not, write to the Free Software | ||
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
21 | */ | ||
22 | |||
23 | /** | ||
24 | * @file h264dspenc.c | ||
25 | * H.264 encoder related DSP utils | ||
26 | * | ||
27 | */ | ||
28 | |||
29 | #include "dsputil.h" | ||
30 | |||
31 | extern const uint8_t ff_div6[52]; | ||
32 | extern const uint8_t ff_rem6[52]; | ||
33 | |||
34 | #define H264_DCT_PART1(X) \ | ||
35 | a = block[0][X]+block[3][X]; \ | ||
36 | c = block[0][X]-block[3][X]; \ | ||
37 | b = block[1][X]+block[2][X]; \ | ||
38 | d = block[1][X]-block[2][X]; \ | ||
39 | pieces[0][X] = a+b; \ | ||
40 | pieces[2][X] = a-b; \ | ||
41 | pieces[1][X] = (c<<1)+d; \ | ||
42 | pieces[3][X] = c-(d<<1); | ||
43 | |||
44 | #define H264_DCT_PART2(X) \ | ||
45 | a = pieces[X][0]+pieces[X][3]; \ | ||
46 | c = pieces[X][0]-pieces[X][3]; \ | ||
47 | b = pieces[X][1]+pieces[X][2]; \ | ||
48 | d = pieces[X][1]-pieces[X][2]; \ | ||
49 | block[0][X] = a+b; \ | ||
50 | block[2][X] = a-b; \ | ||
51 | block[1][X] = (c<<1)+d; \ | ||
52 | block[3][X] = c-(d<<1); | ||
53 | |||
54 | /** | ||
55 | * Transform the provided matrix using the H.264 modified DCT. | ||
56 | * @note | ||
57 | * we'll always work with transposed input blocks, to avoid having to make a | ||
58 | * distinction between C and mmx implementations. | ||
59 | * | ||
60 | * @param block transposed input block | ||
61 | */ | ||
62 | static void h264_dct_c(DCTELEM block[4][4]) | ||
63 | { | ||
64 | DCTELEM pieces[4][4]; | ||
65 | DCTELEM a, b, c, d; | ||
66 | |||
67 | H264_DCT_PART1(0); | ||
68 | H264_DCT_PART1(1); | ||
69 | H264_DCT_PART1(2); | ||
70 | H264_DCT_PART1(3); | ||
71 | H264_DCT_PART2(0); | ||
72 | H264_DCT_PART2(1); | ||
73 | H264_DCT_PART2(2); | ||
74 | H264_DCT_PART2(3); | ||
75 | } | ||
76 | |||
77 | void ff_h264dspenc_init(DSPContext* c, AVCodecContext *avctx) | ||
78 | { | ||
79 | c->h264_dct = h264_dct_c; | ||
80 | } | ||
81 | |||