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1 | /* | ||
2 | * Copyright (c) 2014 Michael Niedermayer <michaelni@gmx.at> | ||
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 | #include "avcodec.h" | ||
22 | #include "idctdsp.h" | ||
23 | #include "fdctdsp.h" | ||
24 | #include "pixblockdsp.h" | ||
25 | #include "avdct.h" | ||
26 | |||
27 | #define OFFSET(x) offsetof(AVDCT,x) | ||
28 | #define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C | ||
29 | //these names are too long to be readable | ||
30 | #define V AV_OPT_FLAG_VIDEO_PARAM | ||
31 | #define A AV_OPT_FLAG_AUDIO_PARAM | ||
32 | #define E AV_OPT_FLAG_ENCODING_PARAM | ||
33 | #define D AV_OPT_FLAG_DECODING_PARAM | ||
34 | |||
35 | static const AVOption avdct_options[] = { | ||
36 | {"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"}, | ||
37 | {"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"}, | ||
38 | {"fastint", "fast integer (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"}, | ||
39 | {"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"}, | ||
40 | {"mmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"}, | ||
41 | {"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"}, | ||
42 | {"faan", "floating point AAN DCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"}, | ||
43 | |||
44 | {"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, "idct"}, | ||
45 | {"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
46 | {"int", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
47 | {"simple", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
48 | {"simplemmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
49 | {"arm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
50 | {"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
51 | {"simplearm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
52 | {"simplearmv5te", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
53 | {"simplearmv6", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
54 | {"simpleneon", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
55 | {"xvid", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
56 | {"xvidmmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
57 | {"faani", "floating point AAN IDCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"}, | ||
58 | {"simpleauto", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, "idct"}, | ||
59 | |||
60 | {"bits_per_sample", "", OFFSET(bits_per_sample), AV_OPT_TYPE_INT, {.i64 = 8 }, 0, 14, 0,}, | ||
61 | {NULL}, | ||
62 | }; | ||
63 | |||
64 | static const AVClass avdct_class = { | ||
65 | .class_name = "AVDCT", | ||
66 | .option = avdct_options, | ||
67 | .version = LIBAVUTIL_VERSION_INT, | ||
68 | }; | ||
69 | |||
70 | ✗ | const AVClass *avcodec_dct_get_class(void) | |
71 | { | ||
72 | ✗ | return &avdct_class; | |
73 | } | ||
74 | |||
75 | 2 | AVDCT *avcodec_dct_alloc(void) | |
76 | { | ||
77 | 2 | AVDCT *dsp = av_mallocz(sizeof(AVDCT)); | |
78 | |||
79 |
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2 | if (!dsp) |
80 | ✗ | return NULL; | |
81 | |||
82 | 2 | dsp->av_class = &avdct_class; | |
83 | 2 | av_opt_set_defaults(dsp); | |
84 | |||
85 | 2 | return dsp; | |
86 | } | ||
87 | |||
88 | 1 | int avcodec_dct_init(AVDCT *dsp) | |
89 | { | ||
90 | 1 | AVCodecContext *avctx = avcodec_alloc_context3(NULL); | |
91 | |||
92 |
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1 | if (!avctx) |
93 | ✗ | return AVERROR(ENOMEM); | |
94 | |||
95 | 1 | avctx->idct_algo = dsp->idct_algo; | |
96 | 1 | avctx->dct_algo = dsp->dct_algo; | |
97 | 1 | avctx->bits_per_raw_sample = dsp->bits_per_sample; | |
98 | |||
99 | #define COPY(src, name) memcpy(&dsp->name, &src.name, sizeof(dsp->name)) | ||
100 | |||
101 | #if CONFIG_IDCTDSP | ||
102 | { | ||
103 | 1 | IDCTDSPContext idsp = {0}; | |
104 | 1 | ff_idctdsp_init(&idsp, avctx); | |
105 | 1 | COPY(idsp, idct); | |
106 | 1 | COPY(idsp, idct_permutation); | |
107 | } | ||
108 | #endif | ||
109 | |||
110 | #if CONFIG_FDCTDSP | ||
111 | { | ||
112 | FDCTDSPContext fdsp; | ||
113 | 1 | ff_fdctdsp_init(&fdsp, avctx); | |
114 | 1 | COPY(fdsp, fdct); | |
115 | } | ||
116 | #endif | ||
117 | |||
118 | #if CONFIG_PIXBLOCKDSP | ||
119 | { | ||
120 | PixblockDSPContext pdsp; | ||
121 | 1 | ff_pixblockdsp_init(&pdsp, avctx); | |
122 | 1 | COPY(pdsp, get_pixels); | |
123 | 1 | COPY(pdsp, get_pixels_unaligned); | |
124 | } | ||
125 | #endif | ||
126 | |||
127 | 1 | avcodec_free_context(&avctx); | |
128 | |||
129 | 1 | return 0; | |
130 | } | ||
131 |