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1 | /* | ||
2 | * huffyuv decoder | ||
3 | * | ||
4 | * Copyright (c) 2002-2014 Michael Niedermayer <michaelni@gmx.at> | ||
5 | * | ||
6 | * see https://multimedia.cx/huffyuv.txt for a description of | ||
7 | * the algorithm used | ||
8 | * | ||
9 | * This file is part of FFmpeg. | ||
10 | * | ||
11 | * FFmpeg is free software; you can redistribute it and/or | ||
12 | * modify it under the terms of the GNU Lesser General Public | ||
13 | * License as published by the Free Software Foundation; either | ||
14 | * version 2.1 of the License, or (at your option) any later version. | ||
15 | * | ||
16 | * FFmpeg is distributed in the hope that it will be useful, | ||
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
19 | * Lesser General Public License for more details. | ||
20 | * | ||
21 | * You should have received a copy of the GNU Lesser General Public | ||
22 | * License along with FFmpeg; if not, write to the Free Software | ||
23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
24 | * | ||
25 | * yuva, gray, 4:4:4, 4:1:1, 4:1:0 and >8 bit per sample support sponsored by NOA | ||
26 | */ | ||
27 | |||
28 | /** | ||
29 | * @file | ||
30 | * huffyuv decoder | ||
31 | */ | ||
32 | |||
33 | #define UNCHECKED_BITSTREAM_READER 1 | ||
34 | |||
35 | #include "config_components.h" | ||
36 | |||
37 | #include "avcodec.h" | ||
38 | #include "bswapdsp.h" | ||
39 | #include "codec_internal.h" | ||
40 | #include "get_bits.h" | ||
41 | #include "huffyuv.h" | ||
42 | #include "huffyuvdsp.h" | ||
43 | #include "lossless_videodsp.h" | ||
44 | #include "thread.h" | ||
45 | #include "libavutil/emms.h" | ||
46 | #include "libavutil/imgutils.h" | ||
47 | #include "libavutil/pixdesc.h" | ||
48 | |||
49 | #define VLC_BITS 12 | ||
50 | |||
51 | typedef struct HYuvDecContext { | ||
52 | GetBitContext gb; | ||
53 | Predictor predictor; | ||
54 | int interlaced; | ||
55 | int decorrelate; | ||
56 | int bitstream_bpp; | ||
57 | int version; | ||
58 | int yuy2; //use yuy2 instead of 422P | ||
59 | int bgr32; //use bgr32 instead of bgr24 | ||
60 | int bps; | ||
61 | int n; // 1<<bps | ||
62 | int vlc_n; // number of vlc codes (FFMIN(1<<bps, MAX_VLC_N)) | ||
63 | int alpha; | ||
64 | int chroma; | ||
65 | int yuv; | ||
66 | int chroma_h_shift; | ||
67 | int chroma_v_shift; | ||
68 | int flags; | ||
69 | int context; | ||
70 | int last_slice_end; | ||
71 | |||
72 | uint8_t *temp[3]; | ||
73 | uint16_t *temp16[3]; ///< identical to temp but 16bit type | ||
74 | uint8_t len[4][MAX_VLC_N]; | ||
75 | uint32_t bits[4][MAX_VLC_N]; | ||
76 | uint32_t pix_bgr_map[1<<VLC_BITS]; | ||
77 | VLC vlc[8]; //Y,U,V,A,YY,YU,YV,AA | ||
78 | uint8_t *bitstream_buffer; | ||
79 | unsigned int bitstream_buffer_size; | ||
80 | BswapDSPContext bdsp; | ||
81 | HuffYUVDSPContext hdsp; | ||
82 | LLVidDSPContext llviddsp; | ||
83 | } HYuvDecContext; | ||
84 | |||
85 | |||
86 | #define classic_shift_luma_table_size 42 | ||
87 | static const unsigned char classic_shift_luma[classic_shift_luma_table_size + AV_INPUT_BUFFER_PADDING_SIZE] = { | ||
88 | 34, 36, 35, 69, 135, 232, 9, 16, 10, 24, 11, 23, 12, 16, 13, 10, | ||
89 | 14, 8, 15, 8, 16, 8, 17, 20, 16, 10, 207, 206, 205, 236, 11, 8, | ||
90 | 10, 21, 9, 23, 8, 8, 199, 70, 69, 68, 0, | ||
91 | 0,0,0,0,0,0,0,0, | ||
92 | }; | ||
93 | |||
94 | #define classic_shift_chroma_table_size 59 | ||
95 | static const unsigned char classic_shift_chroma[classic_shift_chroma_table_size + AV_INPUT_BUFFER_PADDING_SIZE] = { | ||
96 | 66, 36, 37, 38, 39, 40, 41, 75, 76, 77, 110, 239, 144, 81, 82, 83, | ||
97 | 84, 85, 118, 183, 56, 57, 88, 89, 56, 89, 154, 57, 58, 57, 26, 141, | ||
98 | 57, 56, 58, 57, 58, 57, 184, 119, 214, 245, 116, 83, 82, 49, 80, 79, | ||
99 | 78, 77, 44, 75, 41, 40, 39, 38, 37, 36, 34, 0, | ||
100 | 0,0,0,0,0,0,0,0, | ||
101 | }; | ||
102 | |||
103 | static const unsigned char classic_add_luma[256] = { | ||
104 | 3, 9, 5, 12, 10, 35, 32, 29, 27, 50, 48, 45, 44, 41, 39, 37, | ||
105 | 73, 70, 68, 65, 64, 61, 58, 56, 53, 50, 49, 46, 44, 41, 38, 36, | ||
106 | 68, 65, 63, 61, 58, 55, 53, 51, 48, 46, 45, 43, 41, 39, 38, 36, | ||
107 | 35, 33, 32, 30, 29, 27, 26, 25, 48, 47, 46, 44, 43, 41, 40, 39, | ||
108 | 37, 36, 35, 34, 32, 31, 30, 28, 27, 26, 24, 23, 22, 20, 19, 37, | ||
109 | 35, 34, 33, 31, 30, 29, 27, 26, 24, 23, 21, 20, 18, 17, 15, 29, | ||
110 | 27, 26, 24, 22, 21, 19, 17, 16, 14, 26, 25, 23, 21, 19, 18, 16, | ||
111 | 15, 27, 25, 23, 21, 19, 17, 16, 14, 26, 25, 23, 21, 18, 17, 14, | ||
112 | 12, 17, 19, 13, 4, 9, 2, 11, 1, 7, 8, 0, 16, 3, 14, 6, | ||
113 | 12, 10, 5, 15, 18, 11, 10, 13, 15, 16, 19, 20, 22, 24, 27, 15, | ||
114 | 18, 20, 22, 24, 26, 14, 17, 20, 22, 24, 27, 15, 18, 20, 23, 25, | ||
115 | 28, 16, 19, 22, 25, 28, 32, 36, 21, 25, 29, 33, 38, 42, 45, 49, | ||
116 | 28, 31, 34, 37, 40, 42, 44, 47, 49, 50, 52, 54, 56, 57, 59, 60, | ||
117 | 62, 64, 66, 67, 69, 35, 37, 39, 40, 42, 43, 45, 47, 48, 51, 52, | ||
118 | 54, 55, 57, 59, 60, 62, 63, 66, 67, 69, 71, 72, 38, 40, 42, 43, | ||
119 | 46, 47, 49, 51, 26, 28, 30, 31, 33, 34, 18, 19, 11, 13, 7, 8, | ||
120 | }; | ||
121 | |||
122 | static const unsigned char classic_add_chroma[256] = { | ||
123 | 3, 1, 2, 2, 2, 2, 3, 3, 7, 5, 7, 5, 8, 6, 11, 9, | ||
124 | 7, 13, 11, 10, 9, 8, 7, 5, 9, 7, 6, 4, 7, 5, 8, 7, | ||
125 | 11, 8, 13, 11, 19, 15, 22, 23, 20, 33, 32, 28, 27, 29, 51, 77, | ||
126 | 43, 45, 76, 81, 46, 82, 75, 55, 56, 144, 58, 80, 60, 74, 147, 63, | ||
127 | 143, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | ||
128 | 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 27, 30, 21, 22, | ||
129 | 17, 14, 5, 6, 100, 54, 47, 50, 51, 53, 106, 107, 108, 109, 110, 111, | ||
130 | 112, 113, 114, 115, 4, 117, 118, 92, 94, 121, 122, 3, 124, 103, 2, 1, | ||
131 | 0, 129, 130, 131, 120, 119, 126, 125, 136, 137, 138, 139, 140, 141, 142, 134, | ||
132 | 135, 132, 133, 104, 64, 101, 62, 57, 102, 95, 93, 59, 61, 28, 97, 96, | ||
133 | 52, 49, 48, 29, 32, 25, 24, 46, 23, 98, 45, 44, 43, 20, 42, 41, | ||
134 | 19, 18, 99, 40, 15, 39, 38, 16, 13, 12, 11, 37, 10, 9, 8, 36, | ||
135 | 7, 128, 127, 105, 123, 116, 35, 34, 33, 145, 31, 79, 42, 146, 78, 26, | ||
136 | 83, 48, 49, 50, 44, 47, 26, 31, 30, 18, 17, 19, 21, 24, 25, 13, | ||
137 | 14, 16, 17, 18, 20, 21, 12, 14, 15, 9, 10, 6, 9, 6, 5, 8, | ||
138 | 6, 12, 8, 10, 7, 9, 6, 4, 6, 2, 2, 3, 3, 3, 3, 2, | ||
139 | }; | ||
140 | |||
141 | 255 | static int read_len_table(uint8_t *dst, GetBitContext *gb, int n) | |
142 | { | ||
143 | int i, val, repeat; | ||
144 | |||
145 |
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9582 | for (i = 0; i < n;) { |
146 | 9327 | repeat = get_bits(gb, 3); | |
147 | 9327 | val = get_bits(gb, 5); | |
148 |
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9327 | if (repeat == 0) |
149 | 5055 | repeat = get_bits(gb, 8); | |
150 |
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9327 | if (i + repeat > n || get_bits_left(gb) < 0) { |
151 | ✗ | av_log(NULL, AV_LOG_ERROR, "Error reading huffman table\n"); | |
152 | ✗ | return AVERROR_INVALIDDATA; | |
153 | } | ||
154 |
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572271 | while (repeat--) |
155 | 562944 | dst[i++] = val; | |
156 | } | ||
157 | 255 | return 0; | |
158 | } | ||
159 | |||
160 | 85 | static int generate_joint_tables(HYuvDecContext *s) | |
161 | { | ||
162 | int ret; | ||
163 | 85 | uint16_t *symbols = av_mallocz(5 << VLC_BITS); | |
164 | uint16_t *bits; | ||
165 | uint8_t *len; | ||
166 |
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85 | if (!symbols) |
167 | ✗ | return AVERROR(ENOMEM); | |
168 | 85 | bits = symbols + (1 << VLC_BITS); | |
169 | 85 | len = (uint8_t *)(bits + (1 << VLC_BITS)); | |
170 | |||
171 |
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154 | if (s->bitstream_bpp < 24 || s->version > 2) { |
172 | 69 | int count = 1 + s->alpha + 2 * s->chroma; | |
173 | int p, i, y, u; | ||
174 |
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276 | for (p = 0; p < count; p++) { |
175 |
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207 | int p0 = s->version > 2 ? p : 0; |
176 |
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550863 | for (i = y = 0; y < s->vlc_n; y++) { |
177 | 550656 | int len0 = s->len[p0][y]; | |
178 | 550656 | int limit = VLC_BITS - len0; | |
179 |
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550656 | if (limit <= 0 || !len0) |
180 | 537225 | continue; | |
181 |
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13431 | if ((sign_extend(y, 8) & (s->vlc_n-1)) != y) |
182 | ✗ | continue; | |
183 |
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35412855 | for (u = 0; u < s->vlc_n; u++) { |
184 | 35399424 | int len1 = s->len[p][u]; | |
185 |
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35399424 | if (len1 > limit || !len1) |
186 | 35322153 | continue; | |
187 |
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77271 | if ((sign_extend(u, 8) & (s->vlc_n-1)) != u) |
188 | ✗ | continue; | |
189 |
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77271 | av_assert0(i < (1 << VLC_BITS)); |
190 | 77271 | len[i] = len0 + len1; | |
191 | 77271 | bits[i] = (s->bits[p0][y] << len1) + s->bits[p][u]; | |
192 | 77271 | symbols[i] = (y << 8) + (u & 0xFF); | |
193 | 77271 | i++; | |
194 | } | ||
195 | } | ||
196 | 207 | ff_vlc_free(&s->vlc[4 + p]); | |
197 |
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207 | if ((ret = ff_vlc_init_sparse(&s->vlc[4 + p], VLC_BITS, i, len, 1, 1, |
198 | bits, 2, 2, symbols, 2, 2, 0)) < 0) | ||
199 | ✗ | goto out; | |
200 | } | ||
201 | } else { | ||
202 | 16 | uint8_t (*map)[4] = (uint8_t(*)[4]) s->pix_bgr_map; | |
203 | int i, b, g, r, code; | ||
204 | 16 | int p0 = s->decorrelate; | |
205 | 16 | int p1 = !s->decorrelate; | |
206 | /* Restrict the range to +/-16 because that's pretty much guaranteed | ||
207 | * to cover all the combinations that fit in 11 bits total, and it | ||
208 | * does not matter if we miss a few rare codes. */ | ||
209 |
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528 | for (i = 0, g = -16; g < 16; g++) { |
210 | 512 | int len0 = s->len[p0][g & 255]; | |
211 | 512 | int limit0 = VLC_BITS - len0; | |
212 |
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512 | if (limit0 < 2 || !len0) |
213 | ✗ | continue; | |
214 |
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16896 | for (b = -16; b < 16; b++) { |
215 | 16384 | int len1 = s->len[p1][b & 255]; | |
216 | 16384 | int limit1 = limit0 - len1; | |
217 |
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16384 | if (limit1 < 1 || !len1) |
218 | 12656 | continue; | |
219 | 3728 | code = (s->bits[p0][g & 255] << len1) + s->bits[p1][b & 255]; | |
220 |
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123024 | for (r = -16; r < 16; r++) { |
221 | 119296 | int len2 = s->len[2][r & 255]; | |
222 |
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119296 | if (len2 > limit1 || !len2) |
223 | 108368 | continue; | |
224 |
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10928 | av_assert0(i < (1 << VLC_BITS)); |
225 | 10928 | len[i] = len0 + len1 + len2; | |
226 | 10928 | bits[i] = (code << len2) + s->bits[2][r & 255]; | |
227 |
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10928 | if (s->decorrelate) { |
228 | 10928 | map[i][G] = g; | |
229 | 10928 | map[i][B] = g + b; | |
230 | 10928 | map[i][R] = g + r; | |
231 | } else { | ||
232 | ✗ | map[i][B] = g; | |
233 | ✗ | map[i][G] = b; | |
234 | ✗ | map[i][R] = r; | |
235 | } | ||
236 | 10928 | i++; | |
237 | } | ||
238 | } | ||
239 | } | ||
240 | 16 | ff_vlc_free(&s->vlc[4]); | |
241 |
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16 | if ((ret = vlc_init(&s->vlc[4], VLC_BITS, i, len, 1, 1, |
242 | bits, 2, 2, 0)) < 0) | ||
243 | ✗ | goto out; | |
244 | } | ||
245 | 85 | ret = 0; | |
246 | 85 | out: | |
247 | 85 | av_freep(&symbols); | |
248 | 85 | return ret; | |
249 | } | ||
250 | |||
251 | 85 | static int read_huffman_tables(HYuvDecContext *s, const uint8_t *src, int length) | |
252 | { | ||
253 | GetBitContext gb; | ||
254 | int i, ret; | ||
255 | 85 | int count = 3; | |
256 | |||
257 |
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85 | if ((ret = init_get_bits(&gb, src, length * 8)) < 0) |
258 | ✗ | return ret; | |
259 | |||
260 |
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85 | if (s->version > 2) |
261 | 32 | count = 1 + s->alpha + 2*s->chroma; | |
262 | |||
263 |
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340 | for (i = 0; i < count; i++) { |
264 |
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255 | if ((ret = read_len_table(s->len[i], &gb, s->vlc_n)) < 0) |
265 | ✗ | return ret; | |
266 |
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255 | if ((ret = ff_huffyuv_generate_bits_table(s->bits[i], s->len[i], s->vlc_n)) < 0) |
267 | ✗ | return ret; | |
268 | 255 | ff_vlc_free(&s->vlc[i]); | |
269 |
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255 | if ((ret = vlc_init(&s->vlc[i], VLC_BITS, s->vlc_n, s->len[i], 1, 1, |
270 | s->bits[i], 4, 4, 0)) < 0) | ||
271 | ✗ | return ret; | |
272 | } | ||
273 | |||
274 |
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85 | if ((ret = generate_joint_tables(s)) < 0) |
275 | ✗ | return ret; | |
276 | |||
277 | 85 | return (get_bits_count(&gb) + 7) / 8; | |
278 | } | ||
279 | |||
280 | ✗ | static int read_old_huffman_tables(HYuvDecContext *s) | |
281 | { | ||
282 | GetBitContext gb; | ||
283 | int i, ret; | ||
284 | |||
285 | ✗ | init_get_bits(&gb, classic_shift_luma, | |
286 | classic_shift_luma_table_size * 8); | ||
287 | ✗ | if ((ret = read_len_table(s->len[0], &gb, 256)) < 0) | |
288 | ✗ | return ret; | |
289 | |||
290 | ✗ | init_get_bits(&gb, classic_shift_chroma, | |
291 | classic_shift_chroma_table_size * 8); | ||
292 | ✗ | if ((ret = read_len_table(s->len[1], &gb, 256)) < 0) | |
293 | ✗ | return ret; | |
294 | |||
295 | ✗ | for (i = 0; i < 256; i++) | |
296 | ✗ | s->bits[0][i] = classic_add_luma[i]; | |
297 | ✗ | for (i = 0; i < 256; i++) | |
298 | ✗ | s->bits[1][i] = classic_add_chroma[i]; | |
299 | |||
300 | ✗ | if (s->bitstream_bpp >= 24) { | |
301 | ✗ | memcpy(s->bits[1], s->bits[0], 256 * sizeof(uint32_t)); | |
302 | ✗ | memcpy(s->len[1], s->len[0], 256 * sizeof(uint8_t)); | |
303 | } | ||
304 | ✗ | memcpy(s->bits[2], s->bits[1], 256 * sizeof(uint32_t)); | |
305 | ✗ | memcpy(s->len[2], s->len[1], 256 * sizeof(uint8_t)); | |
306 | |||
307 | ✗ | for (i = 0; i < 4; i++) { | |
308 | ✗ | ff_vlc_free(&s->vlc[i]); | |
309 | ✗ | if ((ret = vlc_init(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, | |
310 | s->bits[i], 4, 4, 0)) < 0) | ||
311 | ✗ | return ret; | |
312 | } | ||
313 | |||
314 | ✗ | if ((ret = generate_joint_tables(s)) < 0) | |
315 | ✗ | return ret; | |
316 | |||
317 | ✗ | return 0; | |
318 | } | ||
319 | |||
320 | 85 | static av_cold int decode_end(AVCodecContext *avctx) | |
321 | { | ||
322 | 85 | HYuvDecContext *s = avctx->priv_data; | |
323 | int i; | ||
324 | |||
325 | 85 | ff_huffyuv_common_end(s->temp, s->temp16); | |
326 | 85 | av_freep(&s->bitstream_buffer); | |
327 | |||
328 |
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765 | for (i = 0; i < 8; i++) |
329 | 680 | ff_vlc_free(&s->vlc[i]); | |
330 | |||
331 | 85 | return 0; | |
332 | } | ||
333 | |||
334 | 85 | static av_cold int decode_init(AVCodecContext *avctx) | |
335 | { | ||
336 | 85 | HYuvDecContext *s = avctx->priv_data; | |
337 | int ret; | ||
338 | |||
339 | 85 | ret = av_image_check_size(avctx->width, avctx->height, 0, avctx); | |
340 |
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85 | if (ret < 0) |
341 | ✗ | return ret; | |
342 | |||
343 | 85 | s->flags = avctx->flags; | |
344 | |||
345 | 85 | ff_bswapdsp_init(&s->bdsp); | |
346 | 85 | ff_huffyuvdsp_init(&s->hdsp, avctx->pix_fmt); | |
347 | 85 | ff_llviddsp_init(&s->llviddsp); | |
348 | 85 | memset(s->vlc, 0, 4 * sizeof(VLC)); | |
349 | |||
350 | 85 | s->interlaced = avctx->height > 288; | |
351 | 85 | s->bgr32 = 1; | |
352 | |||
353 |
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85 | if (avctx->extradata_size) { |
354 |
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85 | if ((avctx->bits_per_coded_sample & 7) && |
355 |
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28 | avctx->bits_per_coded_sample != 12) |
356 | ✗ | s->version = 1; // do such files exist at all? | |
357 |
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85 | else if (avctx->extradata_size > 3 && avctx->extradata[3] == 0) |
358 | 53 | s->version = 2; | |
359 | else | ||
360 | 32 | s->version = 3; | |
361 | } else | ||
362 | ✗ | s->version = 0; | |
363 | |||
364 | 85 | s->bps = 8; | |
365 | 85 | s->n = 1<<s->bps; | |
366 | 85 | s->vlc_n = FFMIN(s->n, MAX_VLC_N); | |
367 | 85 | s->chroma = 1; | |
368 |
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85 | if (s->version >= 2) { |
369 | int method, interlace; | ||
370 | |||
371 |
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85 | if (avctx->extradata_size < 4) |
372 | ✗ | return AVERROR_INVALIDDATA; | |
373 | |||
374 | 85 | method = avctx->extradata[0]; | |
375 | 85 | s->decorrelate = method & 64 ? 1 : 0; | |
376 | 85 | s->predictor = method & 63; | |
377 |
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85 | if (s->version == 2) { |
378 | 53 | s->bitstream_bpp = avctx->extradata[1]; | |
379 |
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53 | if (s->bitstream_bpp == 0) |
380 | ✗ | s->bitstream_bpp = avctx->bits_per_coded_sample & ~7; | |
381 | } else { | ||
382 | 32 | s->bps = (avctx->extradata[1] >> 4) + 1; | |
383 | 32 | s->n = 1<<s->bps; | |
384 | 32 | s->vlc_n = FFMIN(s->n, MAX_VLC_N); | |
385 | 32 | s->chroma_h_shift = avctx->extradata[1] & 3; | |
386 | 32 | s->chroma_v_shift = (avctx->extradata[1] >> 2) & 3; | |
387 | 32 | s->yuv = !!(avctx->extradata[2] & 1); | |
388 | 32 | s->chroma= !!(avctx->extradata[2] & 3); | |
389 | 32 | s->alpha = !!(avctx->extradata[2] & 4); | |
390 | } | ||
391 | 85 | interlace = (avctx->extradata[2] & 0x30) >> 4; | |
392 |
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85 | s->interlaced = (interlace == 1) ? 1 : (interlace == 2) ? 0 : s->interlaced; |
393 | 85 | s->context = avctx->extradata[2] & 0x40 ? 1 : 0; | |
394 | |||
395 |
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85 | if ((ret = read_huffman_tables(s, avctx->extradata + 4, |
396 | 85 | avctx->extradata_size - 4)) < 0) | |
397 | ✗ | return ret; | |
398 | } else { | ||
399 | ✗ | switch (avctx->bits_per_coded_sample & 7) { | |
400 | ✗ | case 1: | |
401 | ✗ | s->predictor = LEFT; | |
402 | ✗ | s->decorrelate = 0; | |
403 | ✗ | break; | |
404 | ✗ | case 2: | |
405 | ✗ | s->predictor = LEFT; | |
406 | ✗ | s->decorrelate = 1; | |
407 | ✗ | break; | |
408 | ✗ | case 3: | |
409 | ✗ | s->predictor = PLANE; | |
410 | ✗ | s->decorrelate = avctx->bits_per_coded_sample >= 24; | |
411 | ✗ | break; | |
412 | ✗ | case 4: | |
413 | ✗ | s->predictor = MEDIAN; | |
414 | ✗ | s->decorrelate = 0; | |
415 | ✗ | break; | |
416 | ✗ | default: | |
417 | ✗ | s->predictor = LEFT; // OLD | |
418 | ✗ | s->decorrelate = 0; | |
419 | ✗ | break; | |
420 | } | ||
421 | ✗ | s->bitstream_bpp = avctx->bits_per_coded_sample & ~7; | |
422 | ✗ | s->context = 0; | |
423 | |||
424 | ✗ | if ((ret = read_old_huffman_tables(s)) < 0) | |
425 | ✗ | return ret; | |
426 | } | ||
427 | |||
428 |
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85 | if (s->version <= 2) { |
429 |
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53 | switch (s->bitstream_bpp) { |
430 | 28 | case 12: | |
431 | 28 | avctx->pix_fmt = AV_PIX_FMT_YUV420P; | |
432 | 28 | s->yuv = 1; | |
433 | 28 | break; | |
434 | 9 | case 16: | |
435 |
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9 | if (s->yuy2) |
436 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUYV422; | |
437 | else | ||
438 | 9 | avctx->pix_fmt = AV_PIX_FMT_YUV422P; | |
439 | 9 | s->yuv = 1; | |
440 | 9 | break; | |
441 | 8 | case 24: | |
442 |
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8 | if (s->bgr32) |
443 | 8 | avctx->pix_fmt = AV_PIX_FMT_0RGB32; | |
444 | else | ||
445 | ✗ | avctx->pix_fmt = AV_PIX_FMT_BGR24; | |
446 | 8 | break; | |
447 | 8 | case 32: | |
448 |
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8 | av_assert0(s->bgr32); |
449 | 8 | avctx->pix_fmt = AV_PIX_FMT_RGB32; | |
450 | 8 | s->alpha = 1; | |
451 | 8 | break; | |
452 | ✗ | default: | |
453 | ✗ | return AVERROR_INVALIDDATA; | |
454 | } | ||
455 | 53 | av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, | |
456 | &s->chroma_h_shift, | ||
457 | &s->chroma_v_shift); | ||
458 | } else { | ||
459 |
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32 | switch ( (s->chroma<<10) | (s->yuv<<9) | (s->alpha<<8) | ((s->bps-1)<<4) | s->chroma_h_shift | (s->chroma_v_shift<<2)) { |
460 | ✗ | case 0x070: | |
461 | ✗ | avctx->pix_fmt = AV_PIX_FMT_GRAY8; | |
462 | ✗ | break; | |
463 | ✗ | case 0x0F0: | |
464 | ✗ | avctx->pix_fmt = AV_PIX_FMT_GRAY16; | |
465 | ✗ | break; | |
466 | ✗ | case 0x470: | |
467 | ✗ | avctx->pix_fmt = AV_PIX_FMT_GBRP; | |
468 | ✗ | break; | |
469 | ✗ | case 0x480: | |
470 | ✗ | avctx->pix_fmt = AV_PIX_FMT_GBRP9; | |
471 | ✗ | break; | |
472 | ✗ | case 0x490: | |
473 | ✗ | avctx->pix_fmt = AV_PIX_FMT_GBRP10; | |
474 | ✗ | break; | |
475 | ✗ | case 0x4B0: | |
476 | ✗ | avctx->pix_fmt = AV_PIX_FMT_GBRP12; | |
477 | ✗ | break; | |
478 | ✗ | case 0x4D0: | |
479 | ✗ | avctx->pix_fmt = AV_PIX_FMT_GBRP14; | |
480 | ✗ | break; | |
481 | ✗ | case 0x4F0: | |
482 | ✗ | avctx->pix_fmt = AV_PIX_FMT_GBRP16; | |
483 | ✗ | break; | |
484 | ✗ | case 0x570: | |
485 | ✗ | avctx->pix_fmt = AV_PIX_FMT_GBRAP; | |
486 | ✗ | break; | |
487 | 8 | case 0x670: | |
488 | 8 | avctx->pix_fmt = AV_PIX_FMT_YUV444P; | |
489 | 8 | break; | |
490 | ✗ | case 0x680: | |
491 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV444P9; | |
492 | ✗ | break; | |
493 | ✗ | case 0x690: | |
494 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV444P10; | |
495 | ✗ | break; | |
496 | ✗ | case 0x6B0: | |
497 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV444P12; | |
498 | ✗ | break; | |
499 | ✗ | case 0x6D0: | |
500 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV444P14; | |
501 | ✗ | break; | |
502 | 8 | case 0x6F0: | |
503 | 8 | avctx->pix_fmt = AV_PIX_FMT_YUV444P16; | |
504 | 8 | break; | |
505 | ✗ | case 0x671: | |
506 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV422P; | |
507 | ✗ | break; | |
508 | ✗ | case 0x681: | |
509 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV422P9; | |
510 | ✗ | break; | |
511 | 8 | case 0x691: | |
512 | 8 | avctx->pix_fmt = AV_PIX_FMT_YUV422P10; | |
513 | 8 | break; | |
514 | ✗ | case 0x6B1: | |
515 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV422P12; | |
516 | ✗ | break; | |
517 | ✗ | case 0x6D1: | |
518 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV422P14; | |
519 | ✗ | break; | |
520 | ✗ | case 0x6F1: | |
521 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV422P16; | |
522 | ✗ | break; | |
523 | ✗ | case 0x672: | |
524 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV411P; | |
525 | ✗ | break; | |
526 | ✗ | case 0x674: | |
527 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV440P; | |
528 | ✗ | break; | |
529 | ✗ | case 0x675: | |
530 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV420P; | |
531 | ✗ | break; | |
532 | ✗ | case 0x685: | |
533 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV420P9; | |
534 | ✗ | break; | |
535 | ✗ | case 0x695: | |
536 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV420P10; | |
537 | ✗ | break; | |
538 | 8 | case 0x6B5: | |
539 | 8 | avctx->pix_fmt = AV_PIX_FMT_YUV420P12; | |
540 | 8 | break; | |
541 | ✗ | case 0x6D5: | |
542 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV420P14; | |
543 | ✗ | break; | |
544 | ✗ | case 0x6F5: | |
545 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV420P16; | |
546 | ✗ | break; | |
547 | ✗ | case 0x67A: | |
548 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUV410P; | |
549 | ✗ | break; | |
550 | ✗ | case 0x770: | |
551 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA444P; | |
552 | ✗ | break; | |
553 | ✗ | case 0x780: | |
554 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA444P9; | |
555 | ✗ | break; | |
556 | ✗ | case 0x790: | |
557 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA444P10; | |
558 | ✗ | break; | |
559 | ✗ | case 0x7F0: | |
560 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA444P16; | |
561 | ✗ | break; | |
562 | ✗ | case 0x771: | |
563 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA422P; | |
564 | ✗ | break; | |
565 | ✗ | case 0x781: | |
566 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA422P9; | |
567 | ✗ | break; | |
568 | ✗ | case 0x791: | |
569 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA422P10; | |
570 | ✗ | break; | |
571 | ✗ | case 0x7F1: | |
572 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA422P16; | |
573 | ✗ | break; | |
574 | ✗ | case 0x775: | |
575 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA420P; | |
576 | ✗ | break; | |
577 | ✗ | case 0x785: | |
578 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA420P9; | |
579 | ✗ | break; | |
580 | ✗ | case 0x795: | |
581 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA420P10; | |
582 | ✗ | break; | |
583 | ✗ | case 0x7F5: | |
584 | ✗ | avctx->pix_fmt = AV_PIX_FMT_YUVA420P16; | |
585 | ✗ | break; | |
586 | ✗ | default: | |
587 | ✗ | return AVERROR_INVALIDDATA; | |
588 | } | ||
589 | } | ||
590 | |||
591 |
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85 | if ((avctx->pix_fmt == AV_PIX_FMT_YUV422P || avctx->pix_fmt == AV_PIX_FMT_YUV420P) && avctx->width & 1) { |
592 | ✗ | av_log(avctx, AV_LOG_ERROR, "width must be even for this colorspace\n"); | |
593 | ✗ | return AVERROR_INVALIDDATA; | |
594 | } | ||
595 |
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85 | if (s->predictor == MEDIAN && avctx->pix_fmt == AV_PIX_FMT_YUV422P && |
596 | ✗ | avctx->width % 4) { | |
597 | ✗ | av_log(avctx, AV_LOG_ERROR, "width must be a multiple of 4 " | |
598 | "for this combination of colorspace and predictor type.\n"); | ||
599 | ✗ | return AVERROR_INVALIDDATA; | |
600 | } | ||
601 | |||
602 |
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85 | if ((ret = ff_huffyuv_alloc_temp(s->temp, s->temp16, avctx->width)) < 0) |
603 | ✗ | return ret; | |
604 | |||
605 | 85 | return 0; | |
606 | } | ||
607 | |||
608 | /** Subset of GET_VLC for use in hand-roller VLC code */ | ||
609 | #define VLC_INTERN(dst, table, gb, name, bits, max_depth) \ | ||
610 | code = table[index].sym; \ | ||
611 | n = table[index].len; \ | ||
612 | if (max_depth > 1 && n < 0) { \ | ||
613 | LAST_SKIP_BITS(name, gb, bits); \ | ||
614 | UPDATE_CACHE(name, gb); \ | ||
615 | \ | ||
616 | nb_bits = -n; \ | ||
617 | index = SHOW_UBITS(name, gb, nb_bits) + code; \ | ||
618 | code = table[index].sym; \ | ||
619 | n = table[index].len; \ | ||
620 | if (max_depth > 2 && n < 0) { \ | ||
621 | LAST_SKIP_BITS(name, gb, nb_bits); \ | ||
622 | UPDATE_CACHE(name, gb); \ | ||
623 | \ | ||
624 | nb_bits = -n; \ | ||
625 | index = SHOW_UBITS(name, gb, nb_bits) + code; \ | ||
626 | code = table[index].sym; \ | ||
627 | n = table[index].len; \ | ||
628 | } \ | ||
629 | } \ | ||
630 | dst = code; \ | ||
631 | LAST_SKIP_BITS(name, gb, n) | ||
632 | |||
633 | |||
634 | #define GET_VLC_DUAL(dst0, dst1, name, gb, dtable, table1, table2, \ | ||
635 | bits, max_depth, OP) \ | ||
636 | do { \ | ||
637 | unsigned int index = SHOW_UBITS(name, gb, bits); \ | ||
638 | int code, n = dtable[index].len; \ | ||
639 | \ | ||
640 | if (n<=0) { \ | ||
641 | int nb_bits; \ | ||
642 | VLC_INTERN(dst0, table1, gb, name, bits, max_depth); \ | ||
643 | \ | ||
644 | UPDATE_CACHE(re, gb); \ | ||
645 | index = SHOW_UBITS(name, gb, bits); \ | ||
646 | VLC_INTERN(dst1, table2, gb, name, bits, max_depth); \ | ||
647 | } else { \ | ||
648 | code = dtable[index].sym; \ | ||
649 | OP(dst0, dst1, code); \ | ||
650 | LAST_SKIP_BITS(name, gb, n); \ | ||
651 | } \ | ||
652 | } while (0) | ||
653 | |||
654 | #define OP8bits(dst0, dst1, code) dst0 = code>>8; dst1 = code | ||
655 | |||
656 | #define READ_2PIX(dst0, dst1, plane1) \ | ||
657 | UPDATE_CACHE(re, &s->gb); \ | ||
658 | GET_VLC_DUAL(dst0, dst1, re, &s->gb, s->vlc[4+plane1].table, \ | ||
659 | s->vlc[0].table, s->vlc[plane1].table, VLC_BITS, 3, OP8bits) | ||
660 | |||
661 | 70390 | static void decode_422_bitstream(HYuvDecContext *s, int count) | |
662 | { | ||
663 | int i, icount; | ||
664 | 70390 | OPEN_READER(re, &s->gb); | |
665 | 70390 | count /= 2; | |
666 | |||
667 | 70390 | icount = get_bits_left(&s->gb) / (32 * 4); | |
668 |
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70390 | if (count >= icount) { |
669 |
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147559 | for (i = 0; i < icount; i++) { |
670 |
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145894 | READ_2PIX(s->temp[0][2 * i], s->temp[1][i], 1); |
671 |
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145894 | READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); |
672 | } | ||
673 |
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121205 | for (; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
674 |
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119540 | READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1); |
675 |
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119540 | if (BITS_LEFT(re, &s->gb) <= 0) break; |
676 |
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119540 | READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); |
677 | } | ||
678 |
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1665 | for (; i < count; i++) |
679 | ✗ | s->temp[0][2 * i ] = s->temp[1][i] = | |
680 | ✗ | s->temp[0][2 * i + 1] = s->temp[2][i] = 0; | |
681 | } else { | ||
682 |
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12345431 | for (i = 0; i < count; i++) { |
683 |
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12276706 | READ_2PIX(s->temp[0][2 * i], s->temp[1][i], 1); |
684 |
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12276706 | READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); |
685 | } | ||
686 | } | ||
687 | 70390 | CLOSE_READER(re, &s->gb); | |
688 | 70390 | } | |
689 | |||
690 | #define READ_2PIX_PLANE(dst0, dst1, plane, OP) \ | ||
691 | UPDATE_CACHE(re, &s->gb); \ | ||
692 | GET_VLC_DUAL(dst0, dst1, re, &s->gb, s->vlc[4+plane].table, \ | ||
693 | s->vlc[plane].table, s->vlc[plane].table, VLC_BITS, 3, OP) | ||
694 | |||
695 | #define OP14bits(dst0, dst1, code) dst0 = code>>8; dst1 = sign_extend(code, 8) | ||
696 | |||
697 | /* TODO instead of restarting the read when the code isn't in the first level | ||
698 | * of the joint table, jump into the 2nd level of the individual table. */ | ||
699 | #define READ_2PIX_PLANE16(dst0, dst1, plane){\ | ||
700 | dst0 = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)*4;\ | ||
701 | dst0 += get_bits(&s->gb, 2);\ | ||
702 | dst1 = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)*4;\ | ||
703 | dst1 += get_bits(&s->gb, 2);\ | ||
704 | } | ||
705 | 493900 | static void decode_plane_bitstream(HYuvDecContext *s, int width, int plane) | |
706 | { | ||
707 | 493900 | int i, count = width/2; | |
708 | |||
709 |
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493900 | if (s->bps <= 8) { |
710 | 134700 | OPEN_READER(re, &s->gb); | |
711 |
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134700 | if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
712 |
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213540 | for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
713 |
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212153 | READ_2PIX_PLANE(s->temp[0][2 * i], s->temp[0][2 * i + 1], plane, OP8bits); |
714 | } | ||
715 | } else { | ||
716 |
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22817460 | for(i=0; i<count; i++){ |
717 |
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22684147 | READ_2PIX_PLANE(s->temp[0][2 * i], s->temp[0][2 * i + 1], plane, OP8bits); |
718 | } | ||
719 | } | ||
720 |
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134700 | if( width&1 && BITS_LEFT(re, &s->gb)>0 ) { |
721 | unsigned int index; | ||
722 | int nb_bits, code, n; | ||
723 | ✗ | UPDATE_CACHE(re, &s->gb); | |
724 | ✗ | index = SHOW_UBITS(re, &s->gb, VLC_BITS); | |
725 | ✗ | VLC_INTERN(s->temp[0][width-1], s->vlc[plane].table, | |
726 | &s->gb, re, VLC_BITS, 3); | ||
727 | } | ||
728 | 134700 | CLOSE_READER(re, &s->gb); | |
729 |
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359200 | } else if (s->bps <= 14) { |
730 | 224500 | OPEN_READER(re, &s->gb); | |
731 |
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224500 | if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
732 |
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83177 | for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
733 |
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82104 | READ_2PIX_PLANE(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane, OP14bits); |
734 | } | ||
735 | } else { | ||
736 |
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26851123 | for(i=0; i<count; i++){ |
737 |
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26627696 | READ_2PIX_PLANE(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane, OP14bits); |
738 | } | ||
739 | } | ||
740 |
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224500 | if( width&1 && BITS_LEFT(re, &s->gb)>0 ) { |
741 | unsigned int index; | ||
742 | int nb_bits, code, n; | ||
743 | 5100 | UPDATE_CACHE(re, &s->gb); | |
744 | 5100 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); | |
745 |
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5100 | VLC_INTERN(s->temp16[0][width-1], s->vlc[plane].table, |
746 | &s->gb, re, VLC_BITS, 3); | ||
747 | } | ||
748 | 224500 | CLOSE_READER(re, &s->gb); | |
749 | } else { | ||
750 |
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134700 | if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
751 |
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57258 | for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) { |
752 | 56886 | READ_2PIX_PLANE16(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane); | |
753 | } | ||
754 | } else { | ||
755 |
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22973742 | for(i=0; i<count; i++){ |
756 | 22839414 | READ_2PIX_PLANE16(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane); | |
757 | } | ||
758 | } | ||
759 |
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134700 | if( width&1 && get_bits_left(&s->gb)>0 ) { |
760 | ✗ | int dst = (unsigned)get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)<<2; | |
761 | ✗ | s->temp16[0][width-1] = dst + get_bits(&s->gb, 2); | |
762 | } | ||
763 | } | ||
764 | 493900 | } | |
765 | |||
766 | 25490 | static void decode_gray_bitstream(HYuvDecContext *s, int count) | |
767 | { | ||
768 | int i; | ||
769 | 25490 | OPEN_READER(re, &s->gb); | |
770 | 25490 | count /= 2; | |
771 | |||
772 |
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25490 | if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
773 |
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75357 | for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
774 |
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74930 | READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0); |
775 | } | ||
776 | } else { | ||
777 |
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4860583 | for (i = 0; i < count; i++) { |
778 |
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4835520 | READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0); |
779 | } | ||
780 | } | ||
781 | 25490 | CLOSE_READER(re, &s->gb); | |
782 | 25490 | } | |
783 | |||
784 | 89800 | static av_always_inline void decode_bgr_1(HYuvDecContext *s, int count, | |
785 | int decorrelate, int alpha) | ||
786 | { | ||
787 | int i; | ||
788 | 89800 | OPEN_READER(re, &s->gb); | |
789 | |||
790 |
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30617800 | for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
791 | unsigned int index; | ||
792 | int code, n, nb_bits; | ||
793 | |||
794 | 30528000 | UPDATE_CACHE(re, &s->gb); | |
795 | 30528000 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); | |
796 | 30528000 | n = s->vlc[4].table[index].len; | |
797 | |||
798 |
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30528000 | if (n>0) { |
799 | 13538088 | code = s->vlc[4].table[index].sym; | |
800 | 13538088 | *(uint32_t *) &s->temp[0][4 * i] = s->pix_bgr_map[code]; | |
801 | 13538088 | LAST_SKIP_BITS(re, &s->gb, n); | |
802 | } else { | ||
803 |
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16989912 | if (decorrelate) { |
804 |
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16989912 | VLC_INTERN(s->temp[0][4 * i + G], s->vlc[1].table, |
805 | &s->gb, re, VLC_BITS, 3); | ||
806 | |||
807 | 16989912 | UPDATE_CACHE(re, &s->gb); | |
808 | 16989912 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); | |
809 |
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16989912 | VLC_INTERN(code, s->vlc[0].table, &s->gb, re, VLC_BITS, 3); |
810 | 16989912 | s->temp[0][4 * i + B] = code + s->temp[0][4 * i + G]; | |
811 | |||
812 | 16989912 | UPDATE_CACHE(re, &s->gb); | |
813 | 16989912 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); | |
814 |
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16989912 | VLC_INTERN(code, s->vlc[2].table, &s->gb, re, VLC_BITS, 3); |
815 | 16989912 | s->temp[0][4 * i + R] = code + s->temp[0][4 * i + G]; | |
816 | } else { | ||
817 | ✗ | VLC_INTERN(s->temp[0][4 * i + B], s->vlc[0].table, | |
818 | &s->gb, re, VLC_BITS, 3); | ||
819 | |||
820 | ✗ | UPDATE_CACHE(re, &s->gb); | |
821 | ✗ | index = SHOW_UBITS(re, &s->gb, VLC_BITS); | |
822 | ✗ | VLC_INTERN(s->temp[0][4 * i + G], s->vlc[1].table, | |
823 | &s->gb, re, VLC_BITS, 3); | ||
824 | |||
825 | ✗ | UPDATE_CACHE(re, &s->gb); | |
826 | ✗ | index = SHOW_UBITS(re, &s->gb, VLC_BITS); | |
827 | ✗ | VLC_INTERN(s->temp[0][4 * i + R], s->vlc[2].table, | |
828 | &s->gb, re, VLC_BITS, 3); | ||
829 | } | ||
830 | } | ||
831 |
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30528000 | if (alpha) { |
832 | 15264000 | UPDATE_CACHE(re, &s->gb); | |
833 | 15264000 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); | |
834 |
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15264000 | VLC_INTERN(s->temp[0][4 * i + A], s->vlc[2].table, |
835 | &s->gb, re, VLC_BITS, 3); | ||
836 | } else | ||
837 | 15264000 | s->temp[0][4 * i + A] = 0; | |
838 | } | ||
839 | 89800 | CLOSE_READER(re, &s->gb); | |
840 | 89800 | } | |
841 | |||
842 | 89800 | static void decode_bgr_bitstream(HYuvDecContext *s, int count) | |
843 | { | ||
844 |
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89800 | if (s->decorrelate) { |
845 |
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89800 | if (s->bitstream_bpp == 24) |
846 | 44900 | decode_bgr_1(s, count, 1, 0); | |
847 | else | ||
848 | 44900 | decode_bgr_1(s, count, 1, 1); | |
849 | } else { | ||
850 | ✗ | if (s->bitstream_bpp == 24) | |
851 | ✗ | decode_bgr_1(s, count, 0, 0); | |
852 | else | ||
853 | ✗ | decode_bgr_1(s, count, 0, 1); | |
854 | } | ||
855 | 89800 | } | |
856 | |||
857 | 71590 | static void draw_slice(HYuvDecContext *s, AVCodecContext *avctx, AVFrame *frame, int y) | |
858 | { | ||
859 | int h, cy, i; | ||
860 | int offset[AV_NUM_DATA_POINTERS]; | ||
861 | |||
862 |
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71590 | if (!avctx->draw_horiz_band) |
863 | 71590 | return; | |
864 | |||
865 | ✗ | h = y - s->last_slice_end; | |
866 | ✗ | y -= h; | |
867 | |||
868 | ✗ | if (s->bitstream_bpp == 12) | |
869 | ✗ | cy = y >> 1; | |
870 | else | ||
871 | ✗ | cy = y; | |
872 | |||
873 | ✗ | offset[0] = frame->linesize[0] * y; | |
874 | ✗ | offset[1] = frame->linesize[1] * cy; | |
875 | ✗ | offset[2] = frame->linesize[2] * cy; | |
876 | ✗ | for (i = 3; i < AV_NUM_DATA_POINTERS; i++) | |
877 | ✗ | offset[i] = 0; | |
878 | ✗ | emms_c(); | |
879 | |||
880 | ✗ | avctx->draw_horiz_band(avctx, frame, offset, y, 3, h); | |
881 | |||
882 | ✗ | s->last_slice_end = y + h; | |
883 | } | ||
884 | |||
885 | 493900 | static int left_prediction(HYuvDecContext *s, uint8_t *dst, const uint8_t *src, int w, int acc) | |
886 | { | ||
887 |
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493900 | if (s->bps <= 8) { |
888 | 134700 | return s->llviddsp.add_left_pred(dst, src, w, acc); | |
889 | } else { | ||
890 | 359200 | return s->llviddsp.add_left_pred_int16(( uint16_t *)dst, (const uint16_t *)src, s->n-1, w, acc); | |
891 | } | ||
892 | } | ||
893 | |||
894 | 134100 | static void add_bytes(HYuvDecContext *s, uint8_t *dst, uint8_t *src, int w) | |
895 | { | ||
896 |
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134100 | if (s->bps <= 8) { |
897 | ✗ | s->llviddsp.add_bytes(dst, src, w); | |
898 | } else { | ||
899 | 134100 | s->hdsp.add_int16((uint16_t*)dst, (const uint16_t*)src, s->n - 1, w); | |
900 | } | ||
901 | 134100 | } | |
902 | |||
903 | ✗ | static void add_median_prediction(HYuvDecContext *s, uint8_t *dst, const uint8_t *src, const uint8_t *diff, int w, int *left, int *left_top) | |
904 | { | ||
905 | ✗ | if (s->bps <= 8) { | |
906 | ✗ | s->llviddsp.add_median_pred(dst, src, diff, w, left, left_top); | |
907 | } else { | ||
908 | ✗ | s->hdsp.add_hfyu_median_pred_int16((uint16_t *)dst, (const uint16_t *)src, (const uint16_t *)diff, s->n-1, w, left, left_top); | |
909 | } | ||
910 | ✗ | } | |
911 | |||
912 | 1610 | static int decode_slice(AVCodecContext *avctx, AVFrame *p, int height, | |
913 | int buf_size, int y_offset, int table_size) | ||
914 | { | ||
915 | 1610 | HYuvDecContext *s = avctx->priv_data; | |
916 | int fake_ystride, fake_ustride, fake_vstride; | ||
917 | 1610 | const int width = avctx->width; | |
918 | 1610 | const int width2 = avctx->width >> 1; | |
919 | int ret; | ||
920 | |||
921 |
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1610 | if ((ret = init_get_bits8(&s->gb, s->bitstream_buffer + table_size, buf_size - table_size)) < 0) |
922 | ✗ | return ret; | |
923 | |||
924 |
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1610 | fake_ystride = s->interlaced ? p->linesize[0] * 2 : p->linesize[0]; |
925 |
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1610 | fake_ustride = s->interlaced ? p->linesize[1] * 2 : p->linesize[1]; |
926 |
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1610 | fake_vstride = s->interlaced ? p->linesize[2] * 2 : p->linesize[2]; |
927 | |||
928 |
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1610 | if (s->version > 2) { |
929 | int plane; | ||
930 |
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3200 | for(plane = 0; plane < 1 + 2*s->chroma + s->alpha; plane++) { |
931 | int left, lefttop, y; | ||
932 | 2400 | int w = width; | |
933 | 2400 | int h = height; | |
934 | 2400 | int fake_stride = fake_ystride; | |
935 | |||
936 |
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2400 | if (s->chroma && (plane == 1 || plane == 2)) { |
937 | 1600 | w >>= s->chroma_h_shift; | |
938 | 1600 | h >>= s->chroma_v_shift; | |
939 |
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1600 | fake_stride = plane == 1 ? fake_ustride : fake_vstride; |
940 | } | ||
941 | |||
942 |
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2400 | switch (s->predictor) { |
943 | 2400 | case LEFT: | |
944 | case PLANE: | ||
945 | 2400 | decode_plane_bitstream(s, w, plane); | |
946 | 2400 | left = left_prediction(s, p->data[plane], s->temp[0], w, 0); | |
947 | |||
948 |
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493900 | for (y = 1; y < h; y++) { |
949 | 491500 | uint8_t *dst = p->data[plane] + p->linesize[plane]*y; | |
950 | |||
951 | 491500 | decode_plane_bitstream(s, w, plane); | |
952 | 491500 | left = left_prediction(s, dst, s->temp[0], w, left); | |
953 |
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491500 | if (s->predictor == PLANE) { |
954 |
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134100 | if (y > s->interlaced) { |
955 | 134100 | add_bytes(s, dst, dst - fake_stride, w); | |
956 | } | ||
957 | } | ||
958 | } | ||
959 | |||
960 | 2400 | break; | |
961 | ✗ | case MEDIAN: | |
962 | ✗ | decode_plane_bitstream(s, w, plane); | |
963 | ✗ | left= left_prediction(s, p->data[plane], s->temp[0], w, 0); | |
964 | |||
965 | ✗ | y = 1; | |
966 | ✗ | if (y >= h) | |
967 | ✗ | break; | |
968 | |||
969 | /* second line is left predicted for interlaced case */ | ||
970 | ✗ | if (s->interlaced) { | |
971 | ✗ | decode_plane_bitstream(s, w, plane); | |
972 | ✗ | left = left_prediction(s, p->data[plane] + p->linesize[plane], s->temp[0], w, left); | |
973 | ✗ | y++; | |
974 | ✗ | if (y >= h) | |
975 | ✗ | break; | |
976 | } | ||
977 | |||
978 | ✗ | lefttop = p->data[plane][0]; | |
979 | ✗ | decode_plane_bitstream(s, w, plane); | |
980 | ✗ | add_median_prediction(s, p->data[plane] + fake_stride, p->data[plane], s->temp[0], w, &left, &lefttop); | |
981 | ✗ | y++; | |
982 | |||
983 | ✗ | for (; y<h; y++) { | |
984 | uint8_t *dst; | ||
985 | |||
986 | ✗ | decode_plane_bitstream(s, w, plane); | |
987 | |||
988 | ✗ | dst = p->data[plane] + p->linesize[plane] * y; | |
989 | |||
990 | ✗ | add_median_prediction(s, dst, dst - fake_stride, s->temp[0], w, &left, &lefttop); | |
991 | } | ||
992 | |||
993 | ✗ | break; | |
994 | } | ||
995 | } | ||
996 | 800 | draw_slice(s, avctx, p, height); | |
997 |
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810 | } else if (s->bitstream_bpp < 24) { |
998 | int y, cy; | ||
999 | int lefty, leftu, leftv; | ||
1000 | int lefttopy, lefttopu, lefttopv; | ||
1001 | |||
1002 |
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410 | if (s->yuy2) { |
1003 | ✗ | p->data[0][3] = get_bits(&s->gb, 8); | |
1004 | ✗ | p->data[0][2] = get_bits(&s->gb, 8); | |
1005 | ✗ | p->data[0][1] = get_bits(&s->gb, 8); | |
1006 | ✗ | p->data[0][0] = get_bits(&s->gb, 8); | |
1007 | |||
1008 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
1009 | "YUY2 output is not implemented yet\n"); | ||
1010 | ✗ | return AVERROR_PATCHWELCOME; | |
1011 | } else { | ||
1012 | 410 | leftv = | |
1013 | 410 | p->data[2][0 + y_offset * p->linesize[2]] = get_bits(&s->gb, 8); | |
1014 | 410 | lefty = | |
1015 | 410 | p->data[0][1 + y_offset * p->linesize[0]] = get_bits(&s->gb, 8); | |
1016 | 410 | leftu = | |
1017 | 410 | p->data[1][0 + y_offset * p->linesize[1]] = get_bits(&s->gb, 8); | |
1018 | 410 | p->data[0][0 + y_offset * p->linesize[0]] = get_bits(&s->gb, 8); | |
1019 | |||
1020 |
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|
410 | switch (s->predictor) { |
1021 | 410 | case LEFT: | |
1022 | case PLANE: | ||
1023 | 410 | decode_422_bitstream(s, width - 2); | |
1024 | 820 | lefty = s->llviddsp.add_left_pred(p->data[0] + p->linesize[0] * y_offset + 2, s->temp[0], | |
1025 | 410 | width - 2, lefty); | |
1026 |
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410 | if (!(s->flags & AV_CODEC_FLAG_GRAY)) { |
1027 | 410 | leftu = s->llviddsp.add_left_pred(p->data[1] + p->linesize[1] * y_offset + 1, s->temp[1], width2 - 1, leftu); | |
1028 | 410 | leftv = s->llviddsp.add_left_pred(p->data[2] + p->linesize[2] * y_offset + 1, s->temp[2], width2 - 1, leftv); | |
1029 | } | ||
1030 | |||
1031 |
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70390 | for (cy = y = 1; y < height; y++, cy++) { |
1032 | uint8_t *ydst, *udst, *vdst; | ||
1033 | |||
1034 |
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70190 | if (s->bitstream_bpp == 12) { |
1035 | 25490 | decode_gray_bitstream(s, width); | |
1036 | |||
1037 | 25490 | ydst = p->data[0] + p->linesize[0] * (y + y_offset); | |
1038 | |||
1039 | 25490 | lefty = s->llviddsp.add_left_pred(ydst, s->temp[0], | |
1040 | width, lefty); | ||
1041 |
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25490 | if (s->predictor == PLANE) { |
1042 | ✗ | if (y > s->interlaced) | |
1043 | ✗ | s->llviddsp.add_bytes(ydst, ydst - fake_ystride, width); | |
1044 | } | ||
1045 | 25490 | y++; | |
1046 |
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25490 | if (y >= height) |
1047 | 210 | break; | |
1048 | } | ||
1049 | |||
1050 | 69980 | draw_slice(s, avctx, p, y); | |
1051 | |||
1052 | 69980 | ydst = p->data[0] + p->linesize[0] * (y + y_offset); | |
1053 | 69980 | udst = p->data[1] + p->linesize[1] * (cy + y_offset); | |
1054 | 69980 | vdst = p->data[2] + p->linesize[2] * (cy + y_offset); | |
1055 | |||
1056 | 69980 | decode_422_bitstream(s, width); | |
1057 | 69980 | lefty = s->llviddsp.add_left_pred(ydst, s->temp[0], | |
1058 | width, lefty); | ||
1059 |
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69980 | if (!(s->flags & AV_CODEC_FLAG_GRAY)) { |
1060 | 69980 | leftu = s->llviddsp.add_left_pred(udst, s->temp[1], width2, leftu); | |
1061 | 69980 | leftv = s->llviddsp.add_left_pred(vdst, s->temp[2], width2, leftv); | |
1062 | } | ||
1063 |
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69980 | if (s->predictor == PLANE) { |
1064 | ✗ | if (cy > s->interlaced) { | |
1065 | ✗ | s->llviddsp.add_bytes(ydst, ydst - fake_ystride, width); | |
1066 | ✗ | if (!(s->flags & AV_CODEC_FLAG_GRAY)) { | |
1067 | ✗ | s->llviddsp.add_bytes(udst, udst - fake_ustride, width2); | |
1068 | ✗ | s->llviddsp.add_bytes(vdst, vdst - fake_vstride, width2); | |
1069 | } | ||
1070 | } | ||
1071 | } | ||
1072 | } | ||
1073 | 410 | draw_slice(s, avctx, p, height); | |
1074 | |||
1075 | 410 | break; | |
1076 | ✗ | case MEDIAN: | |
1077 | /* first line except first 2 pixels is left predicted */ | ||
1078 | ✗ | decode_422_bitstream(s, width - 2); | |
1079 | ✗ | lefty = s->llviddsp.add_left_pred(p->data[0] + 2, s->temp[0], | |
1080 | ✗ | width - 2, lefty); | |
1081 | ✗ | if (!(s->flags & AV_CODEC_FLAG_GRAY)) { | |
1082 | ✗ | leftu = s->llviddsp.add_left_pred(p->data[1] + 1, s->temp[1], width2 - 1, leftu); | |
1083 | ✗ | leftv = s->llviddsp.add_left_pred(p->data[2] + 1, s->temp[2], width2 - 1, leftv); | |
1084 | } | ||
1085 | |||
1086 | ✗ | cy = y = 1; | |
1087 | ✗ | if (y >= height) | |
1088 | ✗ | break; | |
1089 | |||
1090 | /* second line is left predicted for interlaced case */ | ||
1091 | ✗ | if (s->interlaced) { | |
1092 | ✗ | decode_422_bitstream(s, width); | |
1093 | ✗ | lefty = s->llviddsp.add_left_pred(p->data[0] + p->linesize[0], | |
1094 | ✗ | s->temp[0], width, lefty); | |
1095 | ✗ | if (!(s->flags & AV_CODEC_FLAG_GRAY)) { | |
1096 | ✗ | leftu = s->llviddsp.add_left_pred(p->data[1] + p->linesize[2], s->temp[1], width2, leftu); | |
1097 | ✗ | leftv = s->llviddsp.add_left_pred(p->data[2] + p->linesize[1], s->temp[2], width2, leftv); | |
1098 | } | ||
1099 | ✗ | y++; | |
1100 | ✗ | cy++; | |
1101 | ✗ | if (y >= height) | |
1102 | ✗ | break; | |
1103 | } | ||
1104 | |||
1105 | /* next 4 pixels are left predicted too */ | ||
1106 | ✗ | decode_422_bitstream(s, 4); | |
1107 | ✗ | lefty = s->llviddsp.add_left_pred(p->data[0] + fake_ystride, | |
1108 | ✗ | s->temp[0], 4, lefty); | |
1109 | ✗ | if (!(s->flags & AV_CODEC_FLAG_GRAY)) { | |
1110 | ✗ | leftu = s->llviddsp.add_left_pred(p->data[1] + fake_ustride, s->temp[1], 2, leftu); | |
1111 | ✗ | leftv = s->llviddsp.add_left_pred(p->data[2] + fake_vstride, s->temp[2], 2, leftv); | |
1112 | } | ||
1113 | |||
1114 | /* next line except the first 4 pixels is median predicted */ | ||
1115 | ✗ | lefttopy = p->data[0][3]; | |
1116 | ✗ | decode_422_bitstream(s, width - 4); | |
1117 | ✗ | s->llviddsp.add_median_pred(p->data[0] + fake_ystride + 4, | |
1118 | ✗ | p->data[0] + 4, s->temp[0], | |
1119 | ✗ | width - 4, &lefty, &lefttopy); | |
1120 | ✗ | if (!(s->flags & AV_CODEC_FLAG_GRAY)) { | |
1121 | ✗ | lefttopu = p->data[1][1]; | |
1122 | ✗ | lefttopv = p->data[2][1]; | |
1123 | ✗ | s->llviddsp.add_median_pred(p->data[1] + fake_ustride + 2, p->data[1] + 2, s->temp[1], width2 - 2, &leftu, &lefttopu); | |
1124 | ✗ | s->llviddsp.add_median_pred(p->data[2] + fake_vstride + 2, p->data[2] + 2, s->temp[2], width2 - 2, &leftv, &lefttopv); | |
1125 | } | ||
1126 | ✗ | y++; | |
1127 | ✗ | cy++; | |
1128 | |||
1129 | ✗ | for (; y < height; y++, cy++) { | |
1130 | uint8_t *ydst, *udst, *vdst; | ||
1131 | |||
1132 | ✗ | if (s->bitstream_bpp == 12) { | |
1133 | ✗ | while (2 * cy > y) { | |
1134 | ✗ | decode_gray_bitstream(s, width); | |
1135 | ✗ | ydst = p->data[0] + p->linesize[0] * y; | |
1136 | ✗ | s->llviddsp.add_median_pred(ydst, ydst - fake_ystride, | |
1137 | ✗ | s->temp[0], width, | |
1138 | &lefty, &lefttopy); | ||
1139 | ✗ | y++; | |
1140 | } | ||
1141 | ✗ | if (y >= height) | |
1142 | ✗ | break; | |
1143 | } | ||
1144 | ✗ | draw_slice(s, avctx, p, y); | |
1145 | |||
1146 | ✗ | decode_422_bitstream(s, width); | |
1147 | |||
1148 | ✗ | ydst = p->data[0] + p->linesize[0] * y; | |
1149 | ✗ | udst = p->data[1] + p->linesize[1] * cy; | |
1150 | ✗ | vdst = p->data[2] + p->linesize[2] * cy; | |
1151 | |||
1152 | ✗ | s->llviddsp.add_median_pred(ydst, ydst - fake_ystride, | |
1153 | ✗ | s->temp[0], width, | |
1154 | &lefty, &lefttopy); | ||
1155 | ✗ | if (!(s->flags & AV_CODEC_FLAG_GRAY)) { | |
1156 | ✗ | s->llviddsp.add_median_pred(udst, udst - fake_ustride, s->temp[1], width2, &leftu, &lefttopu); | |
1157 | ✗ | s->llviddsp.add_median_pred(vdst, vdst - fake_vstride, s->temp[2], width2, &leftv, &lefttopv); | |
1158 | } | ||
1159 | } | ||
1160 | |||
1161 | ✗ | draw_slice(s, avctx, p, height); | |
1162 | ✗ | break; | |
1163 | } | ||
1164 | } | ||
1165 | } else { | ||
1166 | int y; | ||
1167 | uint8_t left[4]; | ||
1168 | 400 | const int last_line = (y_offset + height - 1) * p->linesize[0]; | |
1169 | |||
1170 |
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400 | if (s->bitstream_bpp == 32) { |
1171 | 200 | left[A] = p->data[0][last_line + A] = get_bits(&s->gb, 8); | |
1172 | 200 | left[R] = p->data[0][last_line + R] = get_bits(&s->gb, 8); | |
1173 | 200 | left[G] = p->data[0][last_line + G] = get_bits(&s->gb, 8); | |
1174 | 200 | left[B] = p->data[0][last_line + B] = get_bits(&s->gb, 8); | |
1175 | } else { | ||
1176 | 200 | left[R] = p->data[0][last_line + R] = get_bits(&s->gb, 8); | |
1177 | 200 | left[G] = p->data[0][last_line + G] = get_bits(&s->gb, 8); | |
1178 | 200 | left[B] = p->data[0][last_line + B] = get_bits(&s->gb, 8); | |
1179 | 200 | left[A] = p->data[0][last_line + A] = 255; | |
1180 | 200 | skip_bits(&s->gb, 8); | |
1181 | } | ||
1182 | |||
1183 |
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400 | if (s->bgr32) { |
1184 |
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400 | switch (s->predictor) { |
1185 | 400 | case LEFT: | |
1186 | case PLANE: | ||
1187 | 400 | decode_bgr_bitstream(s, width - 1); | |
1188 | 400 | s->hdsp.add_hfyu_left_pred_bgr32(p->data[0] + last_line + 4, | |
1189 | 400 | s->temp[0], width - 1, left); | |
1190 | |||
1191 |
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89800 | for (y = height - 2; y >= 0; y--) { // Yes it is stored upside down. |
1192 | 89400 | decode_bgr_bitstream(s, width); | |
1193 | |||
1194 | 89400 | s->hdsp.add_hfyu_left_pred_bgr32(p->data[0] + p->linesize[0] * (y + y_offset), | |
1195 | 89400 | s->temp[0], width, left); | |
1196 |
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89400 | if (s->predictor == PLANE) { |
1197 | ✗ | if (s->bitstream_bpp != 32) | |
1198 | ✗ | left[A] = 0; | |
1199 | ✗ | if (y < height - 1 - s->interlaced) { | |
1200 | ✗ | s->llviddsp.add_bytes(p->data[0] + p->linesize[0] * (y + y_offset), | |
1201 | ✗ | p->data[0] + p->linesize[0] * (y + y_offset) + | |
1202 | ✗ | fake_ystride, 4 * width); | |
1203 | } | ||
1204 | } | ||
1205 | } | ||
1206 | // just 1 large slice as this is not possible in reverse order | ||
1207 | 400 | draw_slice(s, avctx, p, height); | |
1208 | 400 | break; | |
1209 | ✗ | default: | |
1210 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
1211 | "prediction type not supported!\n"); | ||
1212 | } | ||
1213 | } else { | ||
1214 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
1215 | "BGR24 output is not implemented yet\n"); | ||
1216 | ✗ | return AVERROR_PATCHWELCOME; | |
1217 | } | ||
1218 | } | ||
1219 | |||
1220 | 1610 | return 0; | |
1221 | } | ||
1222 | |||
1223 | 1610 | static int decode_frame(AVCodecContext *avctx, AVFrame *p, | |
1224 | int *got_frame, AVPacket *avpkt) | ||
1225 | { | ||
1226 | 1610 | const uint8_t *buf = avpkt->data; | |
1227 | 1610 | int buf_size = avpkt->size; | |
1228 | 1610 | HYuvDecContext *s = avctx->priv_data; | |
1229 | 1610 | const int width = avctx->width; | |
1230 | 1610 | const int height = avctx->height; | |
1231 | 1610 | int slice, table_size = 0, ret, nb_slices; | |
1232 | unsigned slices_info_offset; | ||
1233 | int slice_height; | ||
1234 | |||
1235 |
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1610 | if (buf_size < (width * height + 7)/8) |
1236 | ✗ | return AVERROR_INVALIDDATA; | |
1237 | |||
1238 | 1610 | av_fast_padded_malloc(&s->bitstream_buffer, | |
1239 | &s->bitstream_buffer_size, | ||
1240 | buf_size); | ||
1241 |
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1610 | if (!s->bitstream_buffer) |
1242 | ✗ | return AVERROR(ENOMEM); | |
1243 | |||
1244 | 1610 | s->bdsp.bswap_buf((uint32_t *) s->bitstream_buffer, | |
1245 | (const uint32_t *) buf, buf_size / 4); | ||
1246 | |||
1247 |
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|
1610 | if ((ret = ff_thread_get_buffer(avctx, p, 0)) < 0) |
1248 | ✗ | return ret; | |
1249 | |||
1250 |
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1610 | if (s->context) { |
1251 | ✗ | table_size = read_huffman_tables(s, s->bitstream_buffer, buf_size); | |
1252 | ✗ | if (table_size < 0) | |
1253 | ✗ | return table_size; | |
1254 | } | ||
1255 | |||
1256 |
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1610 | if ((unsigned) (buf_size - table_size) >= INT_MAX / 8) |
1257 | ✗ | return AVERROR_INVALIDDATA; | |
1258 | |||
1259 | 1610 | s->last_slice_end = 0; | |
1260 | |||
1261 |
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1610 | if (avctx->codec_id == AV_CODEC_ID_HYMT && |
1262 | ✗ | (buf_size > 32 && AV_RL32(avpkt->data + buf_size - 16) == 0)) { | |
1263 | ✗ | slices_info_offset = AV_RL32(avpkt->data + buf_size - 4); | |
1264 | ✗ | slice_height = AV_RL32(avpkt->data + buf_size - 8); | |
1265 | ✗ | nb_slices = AV_RL32(avpkt->data + buf_size - 12); | |
1266 | ✗ | if (nb_slices * 8LL + slices_info_offset > buf_size - 16 || | |
1267 | ✗ | s->chroma_v_shift || | |
1268 | ✗ | slice_height <= 0 || nb_slices * (uint64_t)slice_height > height) | |
1269 | ✗ | return AVERROR_INVALIDDATA; | |
1270 | } else { | ||
1271 | 1610 | slice_height = height; | |
1272 | 1610 | nb_slices = 1; | |
1273 | } | ||
1274 | |||
1275 |
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3220 | for (slice = 0; slice < nb_slices; slice++) { |
1276 | int y_offset, slice_offset, slice_size; | ||
1277 | |||
1278 |
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1610 | if (nb_slices > 1) { |
1279 | ✗ | slice_offset = AV_RL32(avpkt->data + slices_info_offset + slice * 8); | |
1280 | ✗ | slice_size = AV_RL32(avpkt->data + slices_info_offset + slice * 8 + 4); | |
1281 | |||
1282 | ✗ | if (slice_offset < 0 || slice_size <= 0 || (slice_offset&3) || | |
1283 | ✗ | slice_offset + (int64_t)slice_size > buf_size) | |
1284 | ✗ | return AVERROR_INVALIDDATA; | |
1285 | |||
1286 | ✗ | y_offset = height - (slice + 1) * slice_height; | |
1287 | ✗ | s->bdsp.bswap_buf((uint32_t *)s->bitstream_buffer, | |
1288 | ✗ | (const uint32_t *)(buf + slice_offset), slice_size / 4); | |
1289 | } else { | ||
1290 | 1610 | y_offset = 0; | |
1291 | 1610 | slice_offset = 0; | |
1292 | 1610 | slice_size = buf_size; | |
1293 | } | ||
1294 | |||
1295 | 1610 | ret = decode_slice(avctx, p, slice_height, slice_size, y_offset, table_size); | |
1296 | 1610 | emms_c(); | |
1297 |
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1610 | if (ret < 0) |
1298 | ✗ | return ret; | |
1299 | } | ||
1300 | |||
1301 | 1610 | *got_frame = 1; | |
1302 | |||
1303 | 1610 | return (get_bits_count(&s->gb) + 31) / 32 * 4 + table_size; | |
1304 | } | ||
1305 | |||
1306 | const FFCodec ff_huffyuv_decoder = { | ||
1307 | .p.name = "huffyuv", | ||
1308 | CODEC_LONG_NAME("Huffyuv / HuffYUV"), | ||
1309 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
1310 | .p.id = AV_CODEC_ID_HUFFYUV, | ||
1311 | .priv_data_size = sizeof(HYuvDecContext), | ||
1312 | .init = decode_init, | ||
1313 | .close = decode_end, | ||
1314 | FF_CODEC_DECODE_CB(decode_frame), | ||
1315 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DRAW_HORIZ_BAND | | ||
1316 | AV_CODEC_CAP_FRAME_THREADS, | ||
1317 | .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, | ||
1318 | }; | ||
1319 | |||
1320 | #if CONFIG_FFVHUFF_DECODER | ||
1321 | const FFCodec ff_ffvhuff_decoder = { | ||
1322 | .p.name = "ffvhuff", | ||
1323 | CODEC_LONG_NAME("Huffyuv FFmpeg variant"), | ||
1324 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
1325 | .p.id = AV_CODEC_ID_FFVHUFF, | ||
1326 | .priv_data_size = sizeof(HYuvDecContext), | ||
1327 | .init = decode_init, | ||
1328 | .close = decode_end, | ||
1329 | FF_CODEC_DECODE_CB(decode_frame), | ||
1330 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DRAW_HORIZ_BAND | | ||
1331 | AV_CODEC_CAP_FRAME_THREADS, | ||
1332 | .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, | ||
1333 | }; | ||
1334 | #endif /* CONFIG_FFVHUFF_DECODER */ | ||
1335 | |||
1336 | #if CONFIG_HYMT_DECODER | ||
1337 | const FFCodec ff_hymt_decoder = { | ||
1338 | .p.name = "hymt", | ||
1339 | CODEC_LONG_NAME("HuffYUV MT"), | ||
1340 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
1341 | .p.id = AV_CODEC_ID_HYMT, | ||
1342 | .priv_data_size = sizeof(HYuvDecContext), | ||
1343 | .init = decode_init, | ||
1344 | .close = decode_end, | ||
1345 | FF_CODEC_DECODE_CB(decode_frame), | ||
1346 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DRAW_HORIZ_BAND | | ||
1347 | AV_CODEC_CAP_FRAME_THREADS, | ||
1348 | .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, | ||
1349 | }; | ||
1350 | #endif /* CONFIG_HYMT_DECODER */ | ||
1351 |