2 * Copyright (c) 2020 Paul B Mahol
4 * This file is part of FFmpeg.
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.
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.
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
23 * Cineform HD video encoder
29 #include "libavutil/avassert.h"
30 #include "libavutil/imgutils.h"
31 #include "libavutil/opt.h"
34 #include "bytestream.h"
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 },
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},
106 * Derived by inspecting various quality encodes
107 * and adding some more from scratch.
109 static const uint16_t quantization_per_subband[2][3][13][9] = {
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
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
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
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
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
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
202 typedef struct Codebook {
207 typedef struct Runbook {
213 typedef struct PlaneEnc {
219 unsigned quantization[SUBBAND_COUNT];
220 int16_t *subband[SUBBAND_COUNT];
223 SubBand band[DWT_LEVELS][4];
226 typedef struct CFHDEncContext {
227 const AVClass *class;
244 static av_cold int cfhd_encode_init(AVCodecContext *avctx)
246 CFHDEncContext *s = avctx->priv_data;
247 const int sign_mask = 256;
248 const int twos_complement = -sign_mask;
249 const int mag_mask = sign_mask - 1;
252 ret = av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
258 if (avctx->width & 15) {
259 av_log(avctx, AV_LOG_ERROR, "Width must be multiple of 16.\n");
260 return AVERROR_INVALIDDATA;
263 s->planes = av_pix_fmt_count_planes(avctx->pix_fmt);
265 for (int i = 0; i < s->planes; i++) {
266 int w8, h8, w4, h4, w2, h2;
267 int width = i ? avctx->width >> s->chroma_h_shift : avctx->width;
268 int height = i ? FFALIGN(avctx->height >> s->chroma_v_shift, 8) :
269 FFALIGN(avctx->height >> s->chroma_v_shift, 8);
270 ptrdiff_t stride = FFALIGN(width / 8, 8) * 8;
272 w8 = FFALIGN(width / 8, 8);
279 s->plane[i].dwt_buf =
280 av_mallocz_array(height * stride, sizeof(*s->plane[i].dwt_buf));
281 s->plane[i].dwt_tmp =
282 av_malloc_array(height * stride, sizeof(*s->plane[i].dwt_tmp));
283 if (!s->plane[i].dwt_buf || !s->plane[i].dwt_tmp)
284 return AVERROR(ENOMEM);
286 s->plane[i].subband[0] = s->plane[i].dwt_buf;
287 s->plane[i].subband[1] = s->plane[i].dwt_buf + 2 * w8 * h8;
288 s->plane[i].subband[2] = s->plane[i].dwt_buf + 1 * w8 * h8;
289 s->plane[i].subband[3] = s->plane[i].dwt_buf + 3 * w8 * h8;
290 s->plane[i].subband[4] = s->plane[i].dwt_buf + 2 * w4 * h4;
291 s->plane[i].subband[5] = s->plane[i].dwt_buf + 1 * w4 * h4;
292 s->plane[i].subband[6] = s->plane[i].dwt_buf + 3 * w4 * h4;
293 s->plane[i].subband[7] = s->plane[i].dwt_buf + 2 * w2 * h2;
294 s->plane[i].subband[8] = s->plane[i].dwt_buf + 1 * w2 * h2;
295 s->plane[i].subband[9] = s->plane[i].dwt_buf + 3 * w2 * h2;
297 for (int j = 0; j < DWT_LEVELS; j++) {
298 for (int k = 0; k < FF_ARRAY_ELEMS(s->plane[i].band[j]); k++) {
299 s->plane[i].band[j][k].width = (width / 8) << j;
300 s->plane[i].band[j][k].height = (height / 8) << j;
301 s->plane[i].band[j][k].a_width = w8 << j;
302 s->plane[i].band[j][k].a_height = h8 << j;
306 /* ll2 and ll1 commented out because they are done in-place */
307 s->plane[i].l_h[0] = s->plane[i].dwt_tmp;
308 s->plane[i].l_h[1] = s->plane[i].dwt_tmp + 2 * w8 * h8;
309 // s->plane[i].l_h[2] = ll2;
310 s->plane[i].l_h[3] = s->plane[i].dwt_tmp;
311 s->plane[i].l_h[4] = s->plane[i].dwt_tmp + 2 * w4 * h4;
312 // s->plane[i].l_h[5] = ll1;
313 s->plane[i].l_h[6] = s->plane[i].dwt_tmp;
314 s->plane[i].l_h[7] = s->plane[i].dwt_tmp + 2 * w2 * h2;
317 for (int i = 0; i < 512; i++) {
318 int value = (i & sign_mask) ? twos_complement + (i & mag_mask): i;
319 int mag = FFMIN(FFABS(value), 255);
322 s->cb[i].bits = (codebook[mag][1] << 1) | (value > 0 ? 0 : 1);
323 s->cb[i].size = codebook[mag][0] + 1;
325 s->cb[i].bits = codebook[mag][1];
326 s->cb[i].size = codebook[mag][0];
330 s->cb[512].bits = 0x3114ba3;
331 s->cb[512].size = 26;
335 for (int i = 1, j = 0; i < 320 && j < 17; j++) {
336 int run = runbook[j][2];
337 int end = runbook[j+1][2];
341 s->rb[i].bits = runbook[j][1];
342 s->rb[i++].size = runbook[j][0];
346 s->rb[320].bits = runbook[17][1];
347 s->rb[320].size = runbook[17][0];
348 s->rb[320].run = 320;
350 for (int i = 0; i < 256; i++) {
351 int idx = i + ((768LL * i * i * i) / (256 * 256 * 256));
355 for (int i = 0; i < 1024; i++) {
365 s->alpha = av_calloc(avctx->width * avctx->height, sizeof(*s->alpha));
367 return AVERROR(ENOMEM);
372 static av_always_inline void filter(int16_t *input, ptrdiff_t in_stride,
373 int16_t *low, ptrdiff_t low_stride,
374 int16_t *high, ptrdiff_t high_stride,
377 low[(0>>1) * low_stride] = av_clip_int16(input[0*in_stride] + input[1*in_stride]);
378 high[(0>>1) * high_stride] = av_clip_int16((5 * input[0*in_stride] - 11 * input[1*in_stride] +
379 4 * input[2*in_stride] + 4 * input[3*in_stride] -
380 1 * input[4*in_stride] - 1 * input[5*in_stride] + 4) >> 3);
382 for (int i = 2; i < len - 2; i += 2) {
383 low[(i>>1) * low_stride] = av_clip_int16(input[i*in_stride] + input[(i+1)*in_stride]);
384 high[(i>>1) * high_stride] = av_clip_int16(((-input[(i-2)*in_stride] - input[(i-1)*in_stride] +
385 input[(i+2)*in_stride] + input[(i+3)*in_stride] + 4) >> 3) +
386 input[(i+0)*in_stride] - input[(i+1)*in_stride]);
389 low[((len-2)>>1) * low_stride] = av_clip_int16(input[((len-2)+0)*in_stride] + input[((len-2)+1)*in_stride]);
390 high[((len-2)>>1) * high_stride] = av_clip_int16((11* input[((len-2)+0)*in_stride] - 5 * input[((len-2)+1)*in_stride] -
391 4 * input[((len-2)-1)*in_stride] - 4 * input[((len-2)-2)*in_stride] +
392 1 * input[((len-2)-3)*in_stride] + 1 * input[((len-2)-4)*in_stride] + 4) >> 3);
395 static void horiz_filter(int16_t *input, int16_t *low, int16_t *high,
398 filter(input, 1, low, 1, high, 1, width);
401 static void vert_filter(int16_t *input, ptrdiff_t in_stride,
402 int16_t *low, ptrdiff_t low_stride,
403 int16_t *high, ptrdiff_t high_stride, int len)
405 filter(input, in_stride, low, low_stride, high, high_stride, len);
408 static void quantize_band(int16_t *input, int width, int a_width,
409 int height, unsigned quantization)
411 const int16_t factor = (uint32_t)(1U << 15) / quantization;
413 for (int i = 0; i < height; i++) {
414 for (int j = 0; j < width; j++)
415 input[j] = av_clip_intp2(((input[j] * factor + 16384 * FFSIGN(input[j])) / 32768), 10);
420 static int put_runcode(PutBitContext *pb, int count, const Runbook *const rb)
423 const int index = FFMIN(320, count);
425 put_bits(pb, rb[index].size, rb[index].bits);
426 count -= rb[index].run;
432 static void process_alpha(const int16_t *src, int width, int height, ptrdiff_t stride, int16_t *dst)
434 for (int i = 0; i < height; i++) {
435 for (int j = 0; j < width; j++) {
438 if (alpha > 0 && alpha < 4080) {
445 dst[j] = av_clip_uintp2(alpha, 12);
453 static int cfhd_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
454 const AVFrame *frame, int *got_packet)
456 CFHDEncContext *s = avctx->priv_data;
457 PutByteContext *pby = &s->pby;
458 PutBitContext *pb = &s->pb;
459 const Codebook *const cb = s->cb;
460 const Runbook *const rb = s->rb;
461 const uint16_t *lut = s->lut;
465 for (int plane = 0; plane < s->planes; plane++) {
466 int width = s->plane[plane].band[2][0].width;
467 int a_width = s->plane[plane].band[2][0].a_width;
468 int height = s->plane[plane].band[2][0].height;
469 int act_plane = plane == 1 ? 2 : plane == 2 ? 1 : plane;
470 int16_t *input = (int16_t *)frame->data[act_plane];
471 int16_t *low = s->plane[plane].l_h[6];
472 int16_t *high = s->plane[plane].l_h[7];
473 ptrdiff_t in_stride = frame->linesize[act_plane] / 2;
474 int low_stride, high_stride;
477 process_alpha(input, avctx->width, avctx->height,
478 in_stride, s->alpha);
480 in_stride = avctx->width;
483 for (int i = 0; i < height * 2; i++) {
484 horiz_filter(input, low, high, width * 2);
490 input = s->plane[plane].l_h[7];
491 low = s->plane[plane].subband[7];
492 low_stride = s->plane[plane].band[2][0].a_width;
493 high = s->plane[plane].subband[9];
494 high_stride = s->plane[plane].band[2][0].a_width;
496 for (int i = 0; i < width; i++) {
497 vert_filter(input, a_width, low, low_stride, high, high_stride, height * 2);
503 input = s->plane[plane].l_h[6];
504 low = s->plane[plane].l_h[7];
505 high = s->plane[plane].subband[8];
507 for (int i = 0; i < width; i++) {
508 vert_filter(input, a_width, low, low_stride, high, high_stride, height * 2);
514 a_width = s->plane[plane].band[1][0].a_width;
515 width = s->plane[plane].band[1][0].width;
516 height = s->plane[plane].band[1][0].height;
517 input = s->plane[plane].l_h[7];
518 low = s->plane[plane].l_h[3];
519 low_stride = s->plane[plane].band[1][0].a_width;
520 high = s->plane[plane].l_h[4];
521 high_stride = s->plane[plane].band[1][0].a_width;
523 for (int i = 0; i < height * 2; i++) {
524 for (int j = 0; j < width * 2; j++)
526 input += a_width * 2;
529 input = s->plane[plane].l_h[7];
530 for (int i = 0; i < height * 2; i++) {
531 horiz_filter(input, low, high, width * 2);
532 input += a_width * 2;
537 input = s->plane[plane].l_h[4];
538 low = s->plane[plane].subband[4];
539 high = s->plane[plane].subband[6];
541 for (int i = 0; i < width; i++) {
542 vert_filter(input, a_width, low, low_stride, high, high_stride, height * 2);
548 input = s->plane[plane].l_h[3];
549 low = s->plane[plane].l_h[4];
550 high = s->plane[plane].subband[5];
552 for (int i = 0; i < width; i++) {
553 vert_filter(input, a_width, low, low_stride, high, high_stride, height * 2);
559 a_width = s->plane[plane].band[0][0].a_width;
560 width = s->plane[plane].band[0][0].width;
561 height = s->plane[plane].band[0][0].height;
562 input = s->plane[plane].l_h[4];
563 low = s->plane[plane].l_h[0];
564 low_stride = s->plane[plane].band[0][0].a_width;
565 high = s->plane[plane].l_h[1];
566 high_stride = s->plane[plane].band[0][0].a_width;
568 if (avctx->pix_fmt != AV_PIX_FMT_YUV422P10) {
569 for (int i = 0; i < height * 2; i++) {
570 for (int j = 0; j < width * 2; j++)
572 input += a_width * 2;
576 input = s->plane[plane].l_h[4];
577 for (int i = 0; i < height * 2; i++) {
578 horiz_filter(input, low, high, width * 2);
579 input += a_width * 2;
584 low = s->plane[plane].subband[1];
585 high = s->plane[plane].subband[3];
586 input = s->plane[plane].l_h[1];
588 for (int i = 0; i < width; i++) {
589 vert_filter(input, a_width, low, low_stride, high, high_stride, height * 2);
595 low = s->plane[plane].subband[0];
596 high = s->plane[plane].subband[2];
597 input = s->plane[plane].l_h[0];
599 for (int i = 0; i < width; i++) {
600 vert_filter(input, a_width, low, low_stride, high, high_stride, height * 2);
607 ret = ff_alloc_packet2(avctx, pkt, 64LL + s->planes * (2LL * avctx->width * avctx->height + 1000LL), 0);
611 bytestream2_init_writer(pby, pkt->data, pkt->size);
613 bytestream2_put_be16(pby, SampleType);
614 bytestream2_put_be16(pby, 9);
616 bytestream2_put_be16(pby, SampleIndexTable);
617 bytestream2_put_be16(pby, s->planes);
619 for (int i = 0; i < s->planes; i++)
620 bytestream2_put_be32(pby, 0);
622 bytestream2_put_be16(pby, TransformType);
623 bytestream2_put_be16(pby, 0);
625 bytestream2_put_be16(pby, NumFrames);
626 bytestream2_put_be16(pby, 1);
628 bytestream2_put_be16(pby, ChannelCount);
629 bytestream2_put_be16(pby, s->planes);
631 bytestream2_put_be16(pby, EncodedFormat);
632 bytestream2_put_be16(pby, avctx->pix_fmt == AV_PIX_FMT_YUV422P10 ? 1 : 3 + (s->planes == 4));
634 bytestream2_put_be16(pby, WaveletCount);
635 bytestream2_put_be16(pby, 3);
637 bytestream2_put_be16(pby, SubbandCount);
638 bytestream2_put_be16(pby, SUBBAND_COUNT);
640 bytestream2_put_be16(pby, NumSpatial);
641 bytestream2_put_be16(pby, 2);
643 bytestream2_put_be16(pby, FirstWavelet);
644 bytestream2_put_be16(pby, 3);
646 bytestream2_put_be16(pby, ImageWidth);
647 bytestream2_put_be16(pby, avctx->width);
649 bytestream2_put_be16(pby, ImageHeight);
650 bytestream2_put_be16(pby, avctx->height);
652 bytestream2_put_be16(pby, -FrameNumber);
653 bytestream2_put_be16(pby, frame->pts & 0xFFFF);
655 bytestream2_put_be16(pby, Precision);
656 bytestream2_put_be16(pby, avctx->pix_fmt == AV_PIX_FMT_YUV422P10 ? 10 : 12);
658 bytestream2_put_be16(pby, PrescaleTable);
659 bytestream2_put_be16(pby, avctx->pix_fmt == AV_PIX_FMT_YUV422P10 ? 0x2000 : 0x2800);
661 bytestream2_put_be16(pby, SampleFlags);
662 bytestream2_put_be16(pby, 1);
664 for (int p = 0; p < s->planes; p++) {
665 int width = s->plane[p].band[0][0].width;
666 int a_width = s->plane[p].band[0][0].a_width;
667 int height = s->plane[p].band[0][0].height;
668 int16_t *data = s->plane[p].subband[0];
671 bytestream2_put_be16(pby, SampleType);
672 bytestream2_put_be16(pby, 3);
674 bytestream2_put_be16(pby, ChannelNumber);
675 bytestream2_put_be16(pby, p);
678 bytestream2_put_be16(pby, BitstreamMarker);
679 bytestream2_put_be16(pby, 0x1a4a);
681 pos = bytestream2_tell_p(pby);
683 bytestream2_put_be16(pby, LowpassSubband);
684 bytestream2_put_be16(pby, 0);
686 bytestream2_put_be16(pby, NumLevels);
687 bytestream2_put_be16(pby, 3);
689 bytestream2_put_be16(pby, LowpassWidth);
690 bytestream2_put_be16(pby, width);
692 bytestream2_put_be16(pby, LowpassHeight);
693 bytestream2_put_be16(pby, height);
695 bytestream2_put_be16(pby, PixelOffset);
696 bytestream2_put_be16(pby, 0);
698 bytestream2_put_be16(pby, LowpassQuantization);
699 bytestream2_put_be16(pby, 1);
701 bytestream2_put_be16(pby, LowpassPrecision);
702 bytestream2_put_be16(pby, 16);
704 bytestream2_put_be16(pby, BitstreamMarker);
705 bytestream2_put_be16(pby, 0x0f0f);
707 for (int i = 0; i < height; i++) {
708 for (int j = 0; j < width; j++)
709 bytestream2_put_be16(pby, data[j]);
713 bytestream2_put_be16(pby, BitstreamMarker);
714 bytestream2_put_be16(pby, 0x1b4b);
716 for (int l = 0; l < 3; l++) {
717 for (int i = 0; i < 3; i++) {
718 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];
722 for (int l = 0; l < 3; l++) {
723 int a_width = s->plane[p].band[l][0].a_width;
724 int width = s->plane[p].band[l][0].width;
725 int stride = FFALIGN(width, 8);
726 int height = s->plane[p].band[l][0].height;
728 bytestream2_put_be16(pby, BitstreamMarker);
729 bytestream2_put_be16(pby, 0x0d0d);
731 bytestream2_put_be16(pby, WaveletType);
732 bytestream2_put_be16(pby, 3 + 2 * (l == 2));
734 bytestream2_put_be16(pby, WaveletNumber);
735 bytestream2_put_be16(pby, 3 - l);
737 bytestream2_put_be16(pby, WaveletLevel);
738 bytestream2_put_be16(pby, 3 - l);
740 bytestream2_put_be16(pby, NumBands);
741 bytestream2_put_be16(pby, 4);
743 bytestream2_put_be16(pby, HighpassWidth);
744 bytestream2_put_be16(pby, width);
746 bytestream2_put_be16(pby, HighpassHeight);
747 bytestream2_put_be16(pby, height);
749 bytestream2_put_be16(pby, LowpassBorder);
750 bytestream2_put_be16(pby, 0);
752 bytestream2_put_be16(pby, HighpassBorder);
753 bytestream2_put_be16(pby, 0);
755 bytestream2_put_be16(pby, LowpassScale);
756 bytestream2_put_be16(pby, 1);
758 bytestream2_put_be16(pby, LowpassDivisor);
759 bytestream2_put_be16(pby, 1);
761 for (int i = 0; i < 3; i++) {
762 int16_t *data = s->plane[p].subband[1 + l * 3 + i];
763 int count = 0, padd = 0;
765 bytestream2_put_be16(pby, BitstreamMarker);
766 bytestream2_put_be16(pby, 0x0e0e);
768 bytestream2_put_be16(pby, SubbandNumber);
769 bytestream2_put_be16(pby, i + 1);
771 bytestream2_put_be16(pby, BandCodingFlags);
772 bytestream2_put_be16(pby, 1);
774 bytestream2_put_be16(pby, BandWidth);
775 bytestream2_put_be16(pby, width);
777 bytestream2_put_be16(pby, BandHeight);
778 bytestream2_put_be16(pby, height);
780 bytestream2_put_be16(pby, SubbandBand);
781 bytestream2_put_be16(pby, 1 + l * 3 + i);
783 bytestream2_put_be16(pby, BandEncoding);
784 bytestream2_put_be16(pby, 3);
786 bytestream2_put_be16(pby, Quantization);
787 bytestream2_put_be16(pby, s->plane[p].quantization[1 + l * 3 + i]);
789 bytestream2_put_be16(pby, BandScale);
790 bytestream2_put_be16(pby, 1);
792 bytestream2_put_be16(pby, BandHeader);
793 bytestream2_put_be16(pby, 0);
795 quantize_band(data, width, a_width, height,
796 s->plane[p].quantization[1 + l * 3 + i]);
798 init_put_bits(pb, pkt->data + bytestream2_tell_p(pby), bytestream2_get_bytes_left_p(pby));
800 for (int m = 0; m < height; m++) {
801 for (int j = 0; j < stride; j++) {
802 int16_t index = FFSIGN(data[j]) * lut[FFABS(data[j])];
809 } else if (count > 0) {
810 count = put_runcode(pb, count, rb);
813 put_bits(pb, cb[index].size, cb[index].bits);
820 count = put_runcode(pb, count, rb);
823 put_bits(pb, cb[512].size, cb[512].bits);
826 bytestream2_skip_p(pby, put_bits_count(pb) >> 3);
827 padd = (4 - (bytestream2_tell_p(pby) & 3)) & 3;
829 bytestream2_put_byte(pby, 0);
831 bytestream2_put_be16(pby, BandTrailer);
832 bytestream2_put_be16(pby, 0);
835 bytestream2_put_be16(pby, BitstreamMarker);
836 bytestream2_put_be16(pby, 0x0c0c);
839 s->plane[p].size = bytestream2_tell_p(pby) - pos;
842 bytestream2_put_be16(pby, GroupTrailer);
843 bytestream2_put_be16(pby, 0);
845 av_shrink_packet(pkt, bytestream2_tell_p(pby));
847 pkt->flags |= AV_PKT_FLAG_KEY;
849 bytestream2_seek_p(pby, 8, SEEK_SET);
850 for (int i = 0; i < s->planes; i++)
851 bytestream2_put_be32(pby, s->plane[i].size);
858 static av_cold int cfhd_encode_close(AVCodecContext *avctx)
860 CFHDEncContext *s = avctx->priv_data;
862 for (int i = 0; i < s->planes; i++) {
863 av_freep(&s->plane[i].dwt_buf);
864 av_freep(&s->plane[i].dwt_tmp);
866 for (int j = 0; j < SUBBAND_COUNT; j++)
867 s->plane[i].subband[j] = NULL;
869 for (int j = 0; j < 8; j++)
870 s->plane[i].l_h[j] = NULL;
878 #define OFFSET(x) offsetof(CFHDEncContext, x)
879 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
880 static const AVOption options[] = {
881 { "quality", "set quality", OFFSET(quality), AV_OPT_TYPE_INT, {.i64= 0}, 0, 12, VE, "q" },
882 { "film3+", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 0}, 0, 0, VE, "q" },
883 { "film3", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 1}, 0, 0, VE, "q" },
884 { "film2+", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 2}, 0, 0, VE, "q" },
885 { "film2", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 3}, 0, 0, VE, "q" },
886 { "film1.5", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 4}, 0, 0, VE, "q" },
887 { "film1+", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 5}, 0, 0, VE, "q" },
888 { "film1", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 6}, 0, 0, VE, "q" },
889 { "high+", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 7}, 0, 0, VE, "q" },
890 { "high", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 8}, 0, 0, VE, "q" },
891 { "medium+", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 9}, 0, 0, VE, "q" },
892 { "medium", NULL, 0, AV_OPT_TYPE_CONST, {.i64=10}, 0, 0, VE, "q" },
893 { "low+", NULL, 0, AV_OPT_TYPE_CONST, {.i64=11}, 0, 0, VE, "q" },
894 { "low", NULL, 0, AV_OPT_TYPE_CONST, {.i64=12}, 0, 0, VE, "q" },
898 static const AVClass cfhd_class = {
899 .class_name = "cfhd",
900 .item_name = av_default_item_name,
902 .version = LIBAVUTIL_VERSION_INT,
905 AVCodec ff_cfhd_encoder = {
907 .long_name = NULL_IF_CONFIG_SMALL("GoPro CineForm HD"),
908 .type = AVMEDIA_TYPE_VIDEO,
909 .id = AV_CODEC_ID_CFHD,
910 .priv_data_size = sizeof(CFHDEncContext),
911 .priv_class = &cfhd_class,
912 .init = cfhd_encode_init,
913 .close = cfhd_encode_close,
914 .encode2 = cfhd_encode_frame,
915 .capabilities = AV_CODEC_CAP_FRAME_THREADS,
916 .pix_fmts = (const enum AVPixelFormat[]) {
917 AV_PIX_FMT_YUV422P10,
922 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,