FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/cfhdenc.c
Date: 2024-07-24 19:24:46
Exec Total Coverage
Lines: 0 372 0.0%
Functions: 0 6 0.0%
Branches: 0 138 0.0%

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1 /*
2 * Copyright (c) 2020 Paul B Mahol
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 /**
22 * @file
23 * Cineform HD video encoder
24 */
25
26 #include <stddef.h>
27
28 #include "libavutil/mem.h"
29 #include "libavutil/opt.h"
30 #include "libavutil/pixdesc.h"
31
32 #include "avcodec.h"
33 #include "bytestream.h"
34 #include "cfhd.h"
35 #include "cfhdencdsp.h"
36 #include "codec_internal.h"
37 #include "encode.h"
38 #include "put_bits.h"
39
40 /* Derived from existing tables from decoder */
41 static const unsigned codebook[256][2] = {
42 { 1, 0x00000000 }, { 2, 0x00000002 }, { 3, 0x00000007 }, { 5, 0x00000019 }, { 6, 0x00000030 },
43 { 6, 0x00000036 }, { 7, 0x00000063 }, { 7, 0x0000006B }, { 7, 0x0000006F }, { 8, 0x000000D4 },
44 { 8, 0x000000DC }, { 9, 0x00000189 }, { 9, 0x000001A0 }, { 9, 0x000001AB }, {10, 0x00000310 },
45 {10, 0x00000316 }, {10, 0x00000354 }, {10, 0x00000375 }, {10, 0x00000377 }, {11, 0x00000623 },
46 {11, 0x00000684 }, {11, 0x000006AB }, {11, 0x000006EC }, {12, 0x00000C44 }, {12, 0x00000C5C },
47 {12, 0x00000C5E }, {12, 0x00000D55 }, {12, 0x00000DD1 }, {12, 0x00000DD3 }, {12, 0x00000DDB },
48 {13, 0x0000188B }, {13, 0x000018BB }, {13, 0x00001AA8 }, {13, 0x00001BA0 }, {13, 0x00001BA4 },
49 {13, 0x00001BB5 }, {14, 0x00003115 }, {14, 0x00003175 }, {14, 0x0000317D }, {14, 0x00003553 },
50 {14, 0x00003768 }, {15, 0x00006228 }, {15, 0x000062E8 }, {15, 0x000062F8 }, {15, 0x00006AA4 },
51 {15, 0x00006E85 }, {15, 0x00006E87 }, {15, 0x00006ED3 }, {16, 0x0000C453 }, {16, 0x0000C5D3 },
52 {16, 0x0000C5F3 }, {16, 0x0000DD08 }, {16, 0x0000DD0C }, {16, 0x0000DDA4 }, {17, 0x000188A4 },
53 {17, 0x00018BA5 }, {17, 0x00018BE5 }, {17, 0x0001AA95 }, {17, 0x0001AA97 }, {17, 0x0001BA13 },
54 {17, 0x0001BB4A }, {17, 0x0001BB4B }, {18, 0x00031748 }, {18, 0x000317C8 }, {18, 0x00035528 },
55 {18, 0x0003552C }, {18, 0x00037424 }, {18, 0x00037434 }, {18, 0x00037436 }, {19, 0x00062294 },
56 {19, 0x00062E92 }, {19, 0x00062F92 }, {19, 0x0006AA52 }, {19, 0x0006AA5A }, {19, 0x0006E84A },
57 {19, 0x0006E86A }, {19, 0x0006E86E }, {20, 0x000C452A }, {20, 0x000C5D27 }, {20, 0x000C5F26 },
58 {20, 0x000D54A6 }, {20, 0x000D54B6 }, {20, 0x000DD096 }, {20, 0x000DD0D6 }, {20, 0x000DD0DE },
59 {21, 0x00188A56 }, {21, 0x0018BA4D }, {21, 0x0018BE4E }, {21, 0x0018BE4F }, {21, 0x001AA96E },
60 {21, 0x001BA12E }, {21, 0x001BA12F }, {21, 0x001BA1AF }, {21, 0x001BA1BF }, {22, 0x00317498 },
61 {22, 0x0035529C }, {22, 0x0035529D }, {22, 0x003552DE }, {22, 0x003552DF }, {22, 0x0037435D },
62 {22, 0x0037437D }, {23, 0x0062295D }, {23, 0x0062E933 }, {23, 0x006AA53D }, {23, 0x006AA53E },
63 {23, 0x006AA53F }, {23, 0x006E86B9 }, {23, 0x006E86F8 }, {24, 0x00C452B8 }, {24, 0x00C5D265 },
64 {24, 0x00D54A78 }, {24, 0x00D54A79 }, {24, 0x00DD0D70 }, {24, 0x00DD0D71 }, {24, 0x00DD0DF2 },
65 {24, 0x00DD0DF3 }, {26, 0x03114BA2 }, {25, 0x0188A5B1 }, {25, 0x0188A58B }, {25, 0x0188A595 },
66 {25, 0x0188A5D6 }, {25, 0x0188A5D7 }, {25, 0x0188A5A8 }, {25, 0x0188A5AE }, {25, 0x0188A5AF },
67 {25, 0x0188A5C4 }, {25, 0x0188A5C5 }, {25, 0x0188A587 }, {25, 0x0188A584 }, {25, 0x0188A585 },
68 {25, 0x0188A5C6 }, {25, 0x0188A5C7 }, {25, 0x0188A5CC }, {25, 0x0188A5CD }, {25, 0x0188A581 },
69 {25, 0x0188A582 }, {25, 0x0188A583 }, {25, 0x0188A5CE }, {25, 0x0188A5CF }, {25, 0x0188A5C2 },
70 {25, 0x0188A5C3 }, {25, 0x0188A5C1 }, {25, 0x0188A5B4 }, {25, 0x0188A5B5 }, {25, 0x0188A5E6 },
71 {25, 0x0188A5E7 }, {25, 0x0188A5E4 }, {25, 0x0188A5E5 }, {25, 0x0188A5AB }, {25, 0x0188A5E0 },
72 {25, 0x0188A5E1 }, {25, 0x0188A5E2 }, {25, 0x0188A5E3 }, {25, 0x0188A5B6 }, {25, 0x0188A5B7 },
73 {25, 0x0188A5FD }, {25, 0x0188A57E }, {25, 0x0188A57F }, {25, 0x0188A5EC }, {25, 0x0188A5ED },
74 {25, 0x0188A5FE }, {25, 0x0188A5FF }, {25, 0x0188A57D }, {25, 0x0188A59C }, {25, 0x0188A59D },
75 {25, 0x0188A5E8 }, {25, 0x0188A5E9 }, {25, 0x0188A5EA }, {25, 0x0188A5EB }, {25, 0x0188A5EF },
76 {25, 0x0188A57A }, {25, 0x0188A57B }, {25, 0x0188A578 }, {25, 0x0188A579 }, {25, 0x0188A5BA },
77 {25, 0x0188A5BB }, {25, 0x0188A5B8 }, {25, 0x0188A5B9 }, {25, 0x0188A588 }, {25, 0x0188A589 },
78 {25, 0x018BA4C8 }, {25, 0x018BA4C9 }, {25, 0x0188A5FA }, {25, 0x0188A5FB }, {25, 0x0188A5BC },
79 {25, 0x0188A5BD }, {25, 0x0188A598 }, {25, 0x0188A599 }, {25, 0x0188A5F4 }, {25, 0x0188A5F5 },
80 {25, 0x0188A59B }, {25, 0x0188A5DE }, {25, 0x0188A5DF }, {25, 0x0188A596 }, {25, 0x0188A597 },
81 {25, 0x0188A5F8 }, {25, 0x0188A5F9 }, {25, 0x0188A5F1 }, {25, 0x0188A58E }, {25, 0x0188A58F },
82 {25, 0x0188A5DC }, {25, 0x0188A5DD }, {25, 0x0188A5F2 }, {25, 0x0188A5F3 }, {25, 0x0188A58C },
83 {25, 0x0188A58D }, {25, 0x0188A5A4 }, {25, 0x0188A5F0 }, {25, 0x0188A5A5 }, {25, 0x0188A5A6 },
84 {25, 0x0188A5A7 }, {25, 0x0188A59A }, {25, 0x0188A5A2 }, {25, 0x0188A5A3 }, {25, 0x0188A58A },
85 {25, 0x0188A5B0 }, {25, 0x0188A5A0 }, {25, 0x0188A5A1 }, {25, 0x0188A5DA }, {25, 0x0188A5DB },
86 {25, 0x0188A59E }, {25, 0x0188A59F }, {25, 0x0188A5D8 }, {25, 0x0188A5EE }, {25, 0x0188A5D9 },
87 {25, 0x0188A5F6 }, {25, 0x0188A5F7 }, {25, 0x0188A57C }, {25, 0x0188A5C8 }, {25, 0x0188A5C9 },
88 {25, 0x0188A594 }, {25, 0x0188A5FC }, {25, 0x0188A5CA }, {25, 0x0188A5CB }, {25, 0x0188A5B2 },
89 {25, 0x0188A5AA }, {25, 0x0188A5B3 }, {25, 0x0188A572 }, {25, 0x0188A573 }, {25, 0x0188A5C0 },
90 {25, 0x0188A5BE }, {25, 0x0188A5BF }, {25, 0x0188A592 }, {25, 0x0188A580 }, {25, 0x0188A593 },
91 {25, 0x0188A590 }, {25, 0x0188A591 }, {25, 0x0188A586 }, {25, 0x0188A5A9 }, {25, 0x0188A5D2 },
92 {25, 0x0188A5D3 }, {25, 0x0188A5D4 }, {25, 0x0188A5D5 }, {25, 0x0188A5AC }, {25, 0x0188A5AD },
93 {25, 0x0188A5D0 },
94 };
95
96 /* Derived by extracting runcodes from existing tables from decoder */
97 static const uint16_t runbook[18][3] = {
98 {1, 0x0000, 1}, {2, 0x0000, 2}, {3, 0x0000, 3}, {4, 0x0000, 4},
99 {5, 0x0000, 5}, {6, 0x0000, 6}, {7, 0x0000, 7}, {8, 0x0000, 8},
100 {9, 0x0000, 9}, {10, 0x0000, 10}, {11, 0x0000, 11},
101 {7, 0x0069, 12}, {8, 0x00D1, 20}, {9, 0x018A, 32},
102 {10, 0x0343, 60}, {11, 0x0685, 100}, {13, 0x18BF, 180}, {13, 0x1BA5, 320},
103 };
104
105 /*
106 * Derived by inspecting various quality encodes
107 * and adding some more from scratch.
108 */
109 static const uint16_t quantization_per_subband[2][3][13][9] = {
110 {{
111 { 16, 16, 8, 4, 4, 2, 6, 6, 9, }, // film3+
112 { 16, 16, 8, 4, 4, 2, 6, 6, 9, }, // film3
113 { 16, 16, 8, 4, 4, 2, 7, 7, 10, }, // film2+
114 { 16, 16, 8, 4, 4, 2, 8, 8, 12, }, // film2
115 { 16, 16, 8, 4, 4, 2, 16, 16, 26, }, // film1++
116 { 24, 24, 12, 6, 6, 3, 24, 24, 36, }, // film1+
117 { 24, 24, 12, 6, 6, 3, 24, 24, 36, }, // film1
118 { 32, 32, 24, 8, 8, 6, 32, 32, 48, }, // high+
119 { 32, 32, 24, 8, 8, 6, 32, 32, 48, }, // high
120 { 48, 48, 32, 12, 12, 8, 64, 64, 96, }, // medium+
121 { 48, 48, 32, 12, 12, 8, 64, 64, 96, }, // medium
122 { 64, 64, 48, 16, 16, 12, 96, 96, 144, }, // low+
123 { 64, 64, 48, 16, 16, 12, 128, 128, 192, }, // low
124 },
125 {
126 { 16, 16, 8, 4, 4, 2, 6, 6, 9, }, // film3+
127 { 16, 16, 8, 4, 4, 2, 6, 6, 12, }, // film3
128 { 16, 16, 8, 4, 4, 2, 7, 7, 14, }, // film2+
129 { 16, 16, 8, 4, 4, 2, 8, 8, 16, }, // film2
130 { 16, 16, 8, 4, 4, 2, 16, 16, 26, }, // film1++
131 { 24, 24, 12, 6, 6, 3, 24, 24, 36, }, // film1+
132 { 24, 24, 12, 6, 6, 3, 24, 24, 48, }, // film1
133 { 32, 32, 24, 8, 8, 6, 32, 32, 48, }, // high+
134 { 48, 48, 32, 12, 12, 8, 32, 32, 64, }, // high
135 { 48, 48, 32, 12, 12, 8, 64, 64, 96, }, // medium+
136 { 48, 48, 32, 12, 12, 8, 64, 64, 128, }, // medium
137 { 64, 64, 48, 16, 16, 12, 96, 96, 160, }, // low+
138 { 64, 64, 48, 16, 16, 12, 128, 128, 192, }, // low
139 },
140 {
141 { 16, 16, 8, 4, 4, 2, 6, 6, 9, }, // film3+
142 { 16, 16, 8, 4, 4, 2, 6, 6, 12, }, // film3
143 { 16, 16, 8, 4, 4, 2, 7, 7, 14, }, // film2+
144 { 16, 16, 8, 4, 4, 2, 8, 8, 16, }, // film2
145 { 16, 16, 8, 4, 4, 2, 16, 16, 26, }, // film1++
146 { 24, 24, 12, 6, 6, 3, 24, 24, 36, }, // film1+
147 { 24, 24, 12, 6, 6, 3, 24, 24, 48, }, // film1
148 { 32, 32, 24, 8, 8, 6, 32, 32, 48, }, // high+
149 { 48, 48, 32, 12, 12, 8, 32, 32, 64, }, // high
150 { 48, 48, 32, 12, 12, 8, 64, 64, 96, }, // medium+
151 { 48, 48, 32, 12, 12, 8, 64, 64, 128, }, // medium
152 { 64, 64, 48, 16, 16, 12, 96, 96, 160, }, // low+
153 { 64, 64, 48, 16, 16, 12, 128, 128, 192, }, // low
154 }},
155 {{
156 { 16, 16, 8, 16, 16, 8, 24, 24, 36, }, // film3+
157 { 16, 16, 8, 16, 16, 8, 24, 24, 36, }, // film3
158 { 16, 16, 8, 16, 16, 8, 32, 32, 48, }, // film2+
159 { 16, 16, 8, 16, 16, 8, 32, 32, 48, }, // film2
160 { 16, 16, 8, 20, 20, 10, 80, 80, 128, }, // film1++
161 { 24, 24, 12, 24, 24, 12, 96, 96, 144, }, // film1+
162 { 24, 24, 12, 24, 24, 12, 96, 96, 144, }, // film1
163 { 32, 32, 24, 32, 32, 24, 128, 128, 192, }, // high+
164 { 32, 32, 24, 32, 32, 24, 128, 128, 192, }, // high
165 { 48, 48, 32, 48, 48, 32, 256, 256, 384, }, // medium+
166 { 48, 48, 32, 48, 48, 32, 256, 256, 384, }, // medium
167 { 56, 56, 40, 56, 56, 40, 512, 512, 768, }, // low+
168 { 64, 64, 48, 64, 64, 48, 512, 512, 768, }, // low
169 },
170 {
171 { 16, 16, 8, 16, 16, 8, 24, 24, 36, }, // film3+
172 { 16, 16, 8, 16, 16, 8, 48, 48, 72, }, // film3
173 { 16, 16, 8, 16, 16, 8, 48, 48, 72, }, // film2+
174 { 16, 16, 8, 16, 16, 8, 64, 64, 96, }, // film2
175 { 16, 16, 8, 20, 20, 10, 80, 80, 128, }, // film1++
176 { 24, 24, 12, 24, 24, 12, 96, 96, 144, }, // film1+
177 { 24, 24, 12, 24, 24, 12, 192, 192, 288, }, // film1
178 { 32, 32, 24, 32, 32, 24, 128, 128, 192, }, // high+
179 { 32, 32, 24, 32, 32, 24, 256, 256, 384, }, // high
180 { 48, 48, 32, 48, 48, 32, 256, 256, 384, }, // medium+
181 { 48, 48, 32, 48, 48, 32, 512, 512, 768, }, // medium
182 { 56, 56, 40, 56, 56, 40, 512, 512, 768, }, // low+
183 { 64, 64, 48, 64, 64, 48,1024,1024,1536, }, // low
184 },
185 {
186 { 16, 16, 8, 16, 16, 8, 24, 24, 36, }, // film3+
187 { 16, 16, 8, 16, 16, 8, 48, 48, 72, }, // film3
188 { 16, 16, 8, 16, 16, 8, 48, 48, 72, }, // film2+
189 { 16, 16, 8, 16, 16, 8, 64, 64, 96, }, // film2
190 { 16, 16, 10, 20, 20, 10, 80, 80, 128, }, // film1++
191 { 24, 24, 12, 24, 24, 12, 96, 96, 144, }, // film1+
192 { 24, 24, 12, 24, 24, 12, 192, 192, 288, }, // film1
193 { 32, 32, 24, 32, 32, 24, 128, 128, 192, }, // high+
194 { 32, 32, 24, 32, 32, 24, 256, 256, 384, }, // high
195 { 48, 48, 32, 48, 48, 32, 256, 256, 384, }, // medium+
196 { 48, 48, 32, 48, 48, 32, 512, 512, 768, }, // medium
197 { 56, 56, 40, 56, 56, 40, 512, 512, 768, }, // low+
198 { 64, 64, 48, 64, 64, 48,1024,1024,1536, }, // low
199 }},
200 };
201
202 typedef struct Codebook {
203 unsigned bits;
204 unsigned size;
205 } Codebook;
206
207 typedef struct Runbook {
208 unsigned size;
209 unsigned bits;
210 unsigned run;
211 } Runbook;
212
213 typedef struct PlaneEnc {
214 unsigned size;
215
216 int16_t *dwt_buf;
217 int16_t *dwt_tmp;
218
219 unsigned quantization[SUBBAND_COUNT];
220 int16_t *subband[SUBBAND_COUNT];
221 int16_t *l_h[8];
222
223 SubBand band[DWT_LEVELS][4];
224 } PlaneEnc;
225
226 typedef struct CFHDEncContext {
227 const AVClass *class;
228
229 PutBitContext pb;
230 PutByteContext pby;
231
232 int quality;
233 int planes;
234 int chroma_h_shift;
235 int chroma_v_shift;
236 PlaneEnc plane[4];
237
238 uint16_t lut[1024];
239 Runbook rb[321];
240 Codebook cb[513];
241 int16_t *alpha;
242
243 CFHDEncDSPContext dsp;
244 } CFHDEncContext;
245
246 static av_cold int cfhd_encode_init(AVCodecContext *avctx)
247 {
248 CFHDEncContext *s = avctx->priv_data;
249 const int sign_mask = 256;
250 const int twos_complement = -sign_mask;
251 const int mag_mask = sign_mask - 1;
252 int ret, last = 0;
253
254 ret = av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
255 &s->chroma_h_shift,
256 &s->chroma_v_shift);
257 if (ret < 0)
258 return ret;
259
260 if (avctx->height < 32) {
261 av_log(avctx, AV_LOG_ERROR, "Height must be >= 32.\n");
262 return AVERROR_INVALIDDATA;
263 }
264
265 if (avctx->width & 15) {
266 av_log(avctx, AV_LOG_ERROR, "Width must be multiple of 16.\n");
267 return AVERROR_INVALIDDATA;
268 }
269
270 s->planes = av_pix_fmt_count_planes(avctx->pix_fmt);
271
272 for (int i = 0; i < s->planes; i++) {
273 int w8, h8, w4, h4, w2, h2;
274 const int a_height = FFALIGN(avctx->height, 8);
275 int width = i ? AV_CEIL_RSHIFT(avctx->width, s->chroma_h_shift) : avctx->width;
276 int height = i ? a_height >> s->chroma_v_shift: a_height;
277
278 w8 = width / 8 + 64;
279 h8 = height / 8;
280 w4 = w8 * 2;
281 h4 = h8 * 2;
282 w2 = w4 * 2;
283 h2 = h4 * 2;
284
285 s->plane[i].dwt_buf =
286 av_calloc(h8 * 8 * w8 * 8, sizeof(*s->plane[i].dwt_buf));
287 s->plane[i].dwt_tmp =
288 av_malloc_array(h8 * 8 * w8 * 8, sizeof(*s->plane[i].dwt_tmp));
289 if (!s->plane[i].dwt_buf || !s->plane[i].dwt_tmp)
290 return AVERROR(ENOMEM);
291
292 s->plane[i].subband[0] = s->plane[i].dwt_buf;
293 s->plane[i].subband[1] = s->plane[i].dwt_buf + 2 * w8 * h8;
294 s->plane[i].subband[2] = s->plane[i].dwt_buf + 1 * w8 * h8;
295 s->plane[i].subband[3] = s->plane[i].dwt_buf + 3 * w8 * h8;
296 s->plane[i].subband[4] = s->plane[i].dwt_buf + 2 * w4 * h4;
297 s->plane[i].subband[5] = s->plane[i].dwt_buf + 1 * w4 * h4;
298 s->plane[i].subband[6] = s->plane[i].dwt_buf + 3 * w4 * h4;
299 s->plane[i].subband[7] = s->plane[i].dwt_buf + 2 * w2 * h2;
300 s->plane[i].subband[8] = s->plane[i].dwt_buf + 1 * w2 * h2;
301 s->plane[i].subband[9] = s->plane[i].dwt_buf + 3 * w2 * h2;
302
303 for (int j = 0; j < DWT_LEVELS; j++) {
304 for (int k = 0; k < FF_ARRAY_ELEMS(s->plane[i].band[j]); k++) {
305 s->plane[i].band[j][k].width = (width / 8) << j;
306 s->plane[i].band[j][k].height = height >> (DWT_LEVELS - j);
307 s->plane[i].band[j][k].a_width = w8 << j;
308 s->plane[i].band[j][k].a_height = h8 << j;
309 }
310 }
311
312 /* ll2 and ll1 commented out because they are done in-place */
313 s->plane[i].l_h[0] = s->plane[i].dwt_tmp;
314 s->plane[i].l_h[1] = s->plane[i].dwt_tmp + 2 * w8 * h8;
315 // s->plane[i].l_h[2] = ll2;
316 s->plane[i].l_h[3] = s->plane[i].dwt_tmp;
317 s->plane[i].l_h[4] = s->plane[i].dwt_tmp + 2 * w4 * h4;
318 // s->plane[i].l_h[5] = ll1;
319 s->plane[i].l_h[6] = s->plane[i].dwt_tmp;
320 s->plane[i].l_h[7] = s->plane[i].dwt_tmp + 2 * w2 * h2;
321 }
322
323 for (int i = 0; i < 512; i++) {
324 int value = (i & sign_mask) ? twos_complement + (i & mag_mask): i;
325 int mag = FFMIN(FFABS(value), 255);
326
327 if (mag) {
328 s->cb[i].bits = (codebook[mag][1] << 1) | (value > 0 ? 0 : 1);
329 s->cb[i].size = codebook[mag][0] + 1;
330 } else {
331 s->cb[i].bits = codebook[mag][1];
332 s->cb[i].size = codebook[mag][0];
333 }
334 }
335
336 s->cb[512].bits = 0x3114ba3;
337 s->cb[512].size = 26;
338
339 s->rb[0].run = 0;
340
341 for (int i = 1, j = 0; i < 320 && j < 17; j++) {
342 int run = runbook[j][2];
343 int end = runbook[j+1][2];
344
345 while (i < end) {
346 s->rb[i].run = run;
347 s->rb[i].bits = runbook[j][1];
348 s->rb[i++].size = runbook[j][0];
349 }
350 }
351
352 s->rb[320].bits = runbook[17][1];
353 s->rb[320].size = runbook[17][0];
354 s->rb[320].run = 320;
355
356 for (int i = 0; i < 256; i++) {
357 int idx = i + ((768LL * i * i * i) / (256 * 256 * 256));
358
359 s->lut[idx] = i;
360 }
361 for (int i = 0; i < 1024; i++) {
362 if (s->lut[i])
363 last = s->lut[i];
364 else
365 s->lut[i] = last;
366 }
367
368 ff_cfhdencdsp_init(&s->dsp);
369
370 if (s->planes != 4)
371 return 0;
372
373 s->alpha = av_calloc(avctx->width * avctx->height, sizeof(*s->alpha));
374 if (!s->alpha)
375 return AVERROR(ENOMEM);
376
377 return 0;
378 }
379
380 static void quantize_band(int16_t *input, int width, int a_width,
381 int height, unsigned quantization)
382 {
383 const int16_t factor = (uint32_t)(1U << 15) / quantization;
384
385 for (int i = 0; i < height; i++) {
386 for (int j = 0; j < width; j++)
387 input[j] = av_clip_intp2(((input[j] * factor + 16384 * FFSIGN(input[j])) / 32768), 10);
388 input += a_width;
389 }
390 }
391
392 static int put_runcode(PutBitContext *pb, int count, const Runbook *const rb)
393 {
394 while (count > 0) {
395 const int index = FFMIN(320, count);
396
397 put_bits(pb, rb[index].size, rb[index].bits);
398 count -= rb[index].run;
399 }
400
401 return 0;
402 }
403
404 static void process_alpha(const int16_t *src, int width, int height, ptrdiff_t stride, int16_t *dst)
405 {
406 for (int i = 0; i < height; i++) {
407 for (int j = 0; j < width; j++) {
408 int alpha = src[j];
409
410 if (alpha > 0 && alpha < 4080) {
411 alpha *= 223;
412 alpha += 128;
413 alpha >>= 8;
414 alpha += 256;
415 }
416
417 dst[j] = av_clip_uintp2(alpha, 12);
418 }
419
420 src += stride;
421 dst += width;
422 }
423 }
424
425 static int cfhd_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
426 const AVFrame *frame, int *got_packet)
427 {
428 CFHDEncContext *s = avctx->priv_data;
429 CFHDEncDSPContext *dsp = &s->dsp;
430 PutByteContext *pby = &s->pby;
431 PutBitContext *pb = &s->pb;
432 const Codebook *const cb = s->cb;
433 const Runbook *const rb = s->rb;
434 const uint16_t *lut = s->lut;
435 unsigned pos;
436 int ret;
437
438 for (int plane = 0; plane < s->planes; plane++) {
439 const int h_shift = plane ? s->chroma_h_shift : 0;
440 int width = s->plane[plane].band[2][0].width;
441 int a_width = s->plane[plane].band[2][0].a_width;
442 int height = s->plane[plane].band[2][0].height;
443 int act_plane = plane == 1 ? 2 : plane == 2 ? 1 : plane;
444 const int16_t *input = (int16_t *)frame->data[act_plane];
445 int16_t *buf;
446 int16_t *low = s->plane[plane].l_h[6];
447 int16_t *high = s->plane[plane].l_h[7];
448 ptrdiff_t in_stride = frame->linesize[act_plane] / 2;
449 int low_stride, high_stride;
450
451 if (plane == 3) {
452 process_alpha(input, avctx->width, avctx->height,
453 in_stride, s->alpha);
454 input = s->alpha;
455 in_stride = avctx->width;
456 }
457
458 dsp->horiz_filter(input, low, high,
459 in_stride, a_width, a_width,
460 avctx->width >> h_shift, avctx->height);
461
462 input = s->plane[plane].l_h[7];
463 low = s->plane[plane].subband[7];
464 low_stride = s->plane[plane].band[2][0].a_width;
465 high = s->plane[plane].subband[9];
466 high_stride = s->plane[plane].band[2][0].a_width;
467
468 dsp->vert_filter(input, low, high,
469 a_width, low_stride, high_stride,
470 width, height * 2);
471
472 input = s->plane[plane].l_h[6];
473 low = s->plane[plane].l_h[7];
474 high = s->plane[plane].subband[8];
475
476 dsp->vert_filter(input, low, high,
477 a_width, low_stride, high_stride,
478 width, height * 2);
479
480 a_width = s->plane[plane].band[1][0].a_width;
481 width = s->plane[plane].band[1][0].width;
482 height = s->plane[plane].band[1][0].height;
483 input = s->plane[plane].l_h[7];
484 low = s->plane[plane].l_h[3];
485 low_stride = s->plane[plane].band[1][0].a_width;
486 high = s->plane[plane].l_h[4];
487 high_stride = s->plane[plane].band[1][0].a_width;
488
489 buf = s->plane[plane].l_h[7];
490 for (int i = 0; i < height * 2; i++) {
491 for (int j = 0; j < width * 2; j++)
492 buf[j] /= 4;
493 buf += a_width * 2;
494 }
495
496 dsp->horiz_filter(input, low, high,
497 a_width * 2, low_stride, high_stride,
498 width * 2, height * 2);
499
500 input = s->plane[plane].l_h[4];
501 low = s->plane[plane].subband[4];
502 high = s->plane[plane].subband[6];
503
504 dsp->vert_filter(input, low, high,
505 a_width, low_stride, high_stride,
506 width, height * 2);
507
508 input = s->plane[plane].l_h[3];
509 low = s->plane[plane].l_h[4];
510 high = s->plane[plane].subband[5];
511
512 dsp->vert_filter(input, low, high,
513 a_width, low_stride, high_stride,
514 width, height * 2);
515
516 a_width = s->plane[plane].band[0][0].a_width;
517 width = s->plane[plane].band[0][0].width;
518 height = s->plane[plane].band[0][0].height;
519 input = s->plane[plane].l_h[4];
520 low = s->plane[plane].l_h[0];
521 low_stride = s->plane[plane].band[0][0].a_width;
522 high = s->plane[plane].l_h[1];
523 high_stride = s->plane[plane].band[0][0].a_width;
524
525 if (avctx->pix_fmt != AV_PIX_FMT_YUV422P10) {
526 int16_t *buf = s->plane[plane].l_h[4];
527 for (int i = 0; i < height * 2; i++) {
528 for (int j = 0; j < width * 2; j++)
529 buf[j] /= 4;
530 buf += a_width * 2;
531 }
532 }
533
534 dsp->horiz_filter(input, low, high,
535 a_width * 2, low_stride, high_stride,
536 width * 2, height * 2);
537
538 low = s->plane[plane].subband[1];
539 high = s->plane[plane].subband[3];
540 input = s->plane[plane].l_h[1];
541
542 dsp->vert_filter(input, low, high,
543 a_width, low_stride, high_stride,
544 width, height * 2);
545
546 low = s->plane[plane].subband[0];
547 high = s->plane[plane].subband[2];
548 input = s->plane[plane].l_h[0];
549
550 dsp->vert_filter(input, low, high,
551 a_width, low_stride, high_stride,
552 width, height * 2);
553 }
554
555 ret = ff_alloc_packet(avctx, pkt, 256LL + s->planes * (4LL * avctx->width * (avctx->height + 15) + 2048LL));
556 if (ret < 0)
557 return ret;
558
559 bytestream2_init_writer(pby, pkt->data, pkt->size);
560
561 bytestream2_put_be16(pby, SampleType);
562 bytestream2_put_be16(pby, 9);
563
564 bytestream2_put_be16(pby, SampleIndexTable);
565 bytestream2_put_be16(pby, s->planes);
566
567 for (int i = 0; i < s->planes; i++)
568 bytestream2_put_be32(pby, 0);
569
570 bytestream2_put_be16(pby, TransformType);
571 bytestream2_put_be16(pby, 0);
572
573 bytestream2_put_be16(pby, NumFrames);
574 bytestream2_put_be16(pby, 1);
575
576 bytestream2_put_be16(pby, ChannelCount);
577 bytestream2_put_be16(pby, s->planes);
578
579 bytestream2_put_be16(pby, EncodedFormat);
580 bytestream2_put_be16(pby, avctx->pix_fmt == AV_PIX_FMT_YUV422P10 ? 1 : 3 + (s->planes == 4));
581
582 bytestream2_put_be16(pby, WaveletCount);
583 bytestream2_put_be16(pby, 3);
584
585 bytestream2_put_be16(pby, SubbandCount);
586 bytestream2_put_be16(pby, SUBBAND_COUNT);
587
588 bytestream2_put_be16(pby, NumSpatial);
589 bytestream2_put_be16(pby, 2);
590
591 bytestream2_put_be16(pby, FirstWavelet);
592 bytestream2_put_be16(pby, 3);
593
594 bytestream2_put_be16(pby, ImageWidth);
595 bytestream2_put_be16(pby, avctx->width);
596
597 bytestream2_put_be16(pby, ImageHeight);
598 bytestream2_put_be16(pby, FFALIGN(avctx->height, 8));
599
600 bytestream2_put_be16(pby, -DisplayHeight);
601 bytestream2_put_be16(pby, avctx->height);
602
603 bytestream2_put_be16(pby, -FrameNumber);
604 bytestream2_put_be16(pby, frame->pts & 0xFFFF);
605
606 bytestream2_put_be16(pby, Precision);
607 bytestream2_put_be16(pby, avctx->pix_fmt == AV_PIX_FMT_YUV422P10 ? 10 : 12);
608
609 bytestream2_put_be16(pby, PrescaleTable);
610 bytestream2_put_be16(pby, avctx->pix_fmt == AV_PIX_FMT_YUV422P10 ? 0x2000 : 0x2800);
611
612 bytestream2_put_be16(pby, SampleFlags);
613 bytestream2_put_be16(pby, 1);
614
615 for (int p = 0; p < s->planes; p++) {
616 int width = s->plane[p].band[0][0].width;
617 int a_width = s->plane[p].band[0][0].a_width;
618 int height = s->plane[p].band[0][0].height;
619 int16_t *data = s->plane[p].subband[0];
620
621 if (p) {
622 bytestream2_put_be16(pby, SampleType);
623 bytestream2_put_be16(pby, 3);
624
625 bytestream2_put_be16(pby, ChannelNumber);
626 bytestream2_put_be16(pby, p);
627 }
628
629 bytestream2_put_be16(pby, BitstreamMarker);
630 bytestream2_put_be16(pby, 0x1a4a);
631
632 pos = bytestream2_tell_p(pby);
633
634 bytestream2_put_be16(pby, LowpassSubband);
635 bytestream2_put_be16(pby, 0);
636
637 bytestream2_put_be16(pby, NumLevels);
638 bytestream2_put_be16(pby, 3);
639
640 bytestream2_put_be16(pby, LowpassWidth);
641 bytestream2_put_be16(pby, width);
642
643 bytestream2_put_be16(pby, LowpassHeight);
644 bytestream2_put_be16(pby, height);
645
646 bytestream2_put_be16(pby, PixelOffset);
647 bytestream2_put_be16(pby, 0);
648
649 bytestream2_put_be16(pby, LowpassQuantization);
650 bytestream2_put_be16(pby, 1);
651
652 bytestream2_put_be16(pby, LowpassPrecision);
653 bytestream2_put_be16(pby, 16);
654
655 bytestream2_put_be16(pby, BitstreamMarker);
656 bytestream2_put_be16(pby, 0x0f0f);
657
658 for (int i = 0; i < height; i++) {
659 for (int j = 0; j < width; j++)
660 bytestream2_put_be16(pby, data[j]);
661 data += a_width;
662 }
663
664 bytestream2_put_be16(pby, BitstreamMarker);
665 bytestream2_put_be16(pby, 0x1b4b);
666
667 for (int l = 0; l < 3; l++) {
668 for (int i = 0; i < 3; i++) {
669 s->plane[p].quantization[1 + l * 3 + i] = quantization_per_subband[avctx->pix_fmt != AV_PIX_FMT_YUV422P10][p >= 3 ? 0 : p][s->quality][l * 3 + i];
670 }
671 }
672
673 for (int l = 0; l < 3; l++) {
674 int a_width = s->plane[p].band[l][0].a_width;
675 int width = s->plane[p].band[l][0].width;
676 int stride = FFALIGN(width, 8);
677 int height = s->plane[p].band[l][0].height;
678
679 bytestream2_put_be16(pby, BitstreamMarker);
680 bytestream2_put_be16(pby, 0x0d0d);
681
682 bytestream2_put_be16(pby, WaveletType);
683 bytestream2_put_be16(pby, 3 + 2 * (l == 2));
684
685 bytestream2_put_be16(pby, WaveletNumber);
686 bytestream2_put_be16(pby, 3 - l);
687
688 bytestream2_put_be16(pby, WaveletLevel);
689 bytestream2_put_be16(pby, 3 - l);
690
691 bytestream2_put_be16(pby, NumBands);
692 bytestream2_put_be16(pby, 4);
693
694 bytestream2_put_be16(pby, HighpassWidth);
695 bytestream2_put_be16(pby, width);
696
697 bytestream2_put_be16(pby, HighpassHeight);
698 bytestream2_put_be16(pby, height);
699
700 bytestream2_put_be16(pby, LowpassBorder);
701 bytestream2_put_be16(pby, 0);
702
703 bytestream2_put_be16(pby, HighpassBorder);
704 bytestream2_put_be16(pby, 0);
705
706 bytestream2_put_be16(pby, LowpassScale);
707 bytestream2_put_be16(pby, 1);
708
709 bytestream2_put_be16(pby, LowpassDivisor);
710 bytestream2_put_be16(pby, 1);
711
712 for (int i = 0; i < 3; i++) {
713 int16_t *data = s->plane[p].subband[1 + l * 3 + i];
714 int count = 0, padd = 0;
715
716 bytestream2_put_be16(pby, BitstreamMarker);
717 bytestream2_put_be16(pby, 0x0e0e);
718
719 bytestream2_put_be16(pby, SubbandNumber);
720 bytestream2_put_be16(pby, i + 1);
721
722 bytestream2_put_be16(pby, BandCodingFlags);
723 bytestream2_put_be16(pby, 1);
724
725 bytestream2_put_be16(pby, BandWidth);
726 bytestream2_put_be16(pby, width);
727
728 bytestream2_put_be16(pby, BandHeight);
729 bytestream2_put_be16(pby, height);
730
731 bytestream2_put_be16(pby, SubbandBand);
732 bytestream2_put_be16(pby, 1 + l * 3 + i);
733
734 bytestream2_put_be16(pby, BandEncoding);
735 bytestream2_put_be16(pby, 3);
736
737 bytestream2_put_be16(pby, Quantization);
738 bytestream2_put_be16(pby, s->plane[p].quantization[1 + l * 3 + i]);
739
740 bytestream2_put_be16(pby, BandScale);
741 bytestream2_put_be16(pby, 1);
742
743 bytestream2_put_be16(pby, BandHeader);
744 bytestream2_put_be16(pby, 0);
745
746 quantize_band(data, width, a_width, height,
747 s->plane[p].quantization[1 + l * 3 + i]);
748
749 init_put_bits(pb, pkt->data + bytestream2_tell_p(pby), bytestream2_get_bytes_left_p(pby));
750
751 for (int m = 0; m < height; m++) {
752 for (int j = 0; j < stride; j++) {
753 int16_t index = j >= width ? 0 : FFSIGN(data[j]) * lut[FFABS(data[j])];
754
755 if (index < 0)
756 index += 512;
757 if (index == 0) {
758 count++;
759 continue;
760 } else if (count > 0) {
761 count = put_runcode(pb, count, rb);
762 }
763 put_bits(pb, cb[index].size, cb[index].bits);
764 }
765
766 data += a_width;
767 }
768
769 if (count > 0) {
770 count = put_runcode(pb, count, rb);
771 }
772
773 put_bits(pb, cb[512].size, cb[512].bits);
774
775 flush_put_bits(pb);
776 bytestream2_skip_p(pby, put_bytes_output(pb));
777 padd = (4 - (bytestream2_tell_p(pby) & 3)) & 3;
778 while (padd--)
779 bytestream2_put_byte(pby, 0);
780
781 bytestream2_put_be16(pby, BandTrailer);
782 bytestream2_put_be16(pby, 0);
783 }
784
785 bytestream2_put_be16(pby, BitstreamMarker);
786 bytestream2_put_be16(pby, 0x0c0c);
787 }
788
789 s->plane[p].size = bytestream2_tell_p(pby) - pos;
790 }
791
792 bytestream2_put_be16(pby, GroupTrailer);
793 bytestream2_put_be16(pby, 0);
794
795 av_shrink_packet(pkt, bytestream2_tell_p(pby));
796
797 pkt->flags |= AV_PKT_FLAG_KEY;
798
799 bytestream2_seek_p(pby, 8, SEEK_SET);
800 for (int i = 0; i < s->planes; i++)
801 bytestream2_put_be32(pby, s->plane[i].size);
802
803 *got_packet = 1;
804
805 return 0;
806 }
807
808 static av_cold int cfhd_encode_close(AVCodecContext *avctx)
809 {
810 CFHDEncContext *s = avctx->priv_data;
811
812 for (int i = 0; i < s->planes; i++) {
813 av_freep(&s->plane[i].dwt_buf);
814 av_freep(&s->plane[i].dwt_tmp);
815
816 for (int j = 0; j < SUBBAND_COUNT; j++)
817 s->plane[i].subband[j] = NULL;
818
819 for (int j = 0; j < 8; j++)
820 s->plane[i].l_h[j] = NULL;
821 }
822
823 av_freep(&s->alpha);
824
825 return 0;
826 }
827
828 #define OFFSET(x) offsetof(CFHDEncContext, x)
829 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
830 static const AVOption options[] = {
831 { "quality", "set quality", OFFSET(quality), AV_OPT_TYPE_INT, {.i64= 0}, 0, 12, VE, .unit = "q" },
832 { "film3+", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 0}, 0, 0, VE, .unit = "q" },
833 { "film3", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 1}, 0, 0, VE, .unit = "q" },
834 { "film2+", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 2}, 0, 0, VE, .unit = "q" },
835 { "film2", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 3}, 0, 0, VE, .unit = "q" },
836 { "film1.5", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 4}, 0, 0, VE, .unit = "q" },
837 { "film1+", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 5}, 0, 0, VE, .unit = "q" },
838 { "film1", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 6}, 0, 0, VE, .unit = "q" },
839 { "high+", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 7}, 0, 0, VE, .unit = "q" },
840 { "high", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 8}, 0, 0, VE, .unit = "q" },
841 { "medium+", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 9}, 0, 0, VE, .unit = "q" },
842 { "medium", NULL, 0, AV_OPT_TYPE_CONST, {.i64=10}, 0, 0, VE, .unit = "q" },
843 { "low+", NULL, 0, AV_OPT_TYPE_CONST, {.i64=11}, 0, 0, VE, .unit = "q" },
844 { "low", NULL, 0, AV_OPT_TYPE_CONST, {.i64=12}, 0, 0, VE, .unit = "q" },
845 { NULL},
846 };
847
848 static const AVClass cfhd_class = {
849 .class_name = "cfhd",
850 .item_name = av_default_item_name,
851 .option = options,
852 .version = LIBAVUTIL_VERSION_INT,
853 };
854
855 const FFCodec ff_cfhd_encoder = {
856 .p.name = "cfhd",
857 CODEC_LONG_NAME("GoPro CineForm HD"),
858 .p.type = AVMEDIA_TYPE_VIDEO,
859 .p.id = AV_CODEC_ID_CFHD,
860 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
861 AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
862 .priv_data_size = sizeof(CFHDEncContext),
863 .p.priv_class = &cfhd_class,
864 .init = cfhd_encode_init,
865 .close = cfhd_encode_close,
866 FF_CODEC_ENCODE_CB(cfhd_encode_frame),
867 .p.pix_fmts = (const enum AVPixelFormat[]) {
868 AV_PIX_FMT_YUV422P10,
869 AV_PIX_FMT_GBRP12,
870 AV_PIX_FMT_GBRAP12,
871 AV_PIX_FMT_NONE
872 },
873 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
874 };
875