| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Mirillis FIC decoder | ||
| 3 | * | ||
| 4 | * Copyright (c) 2014 Konstantin Shishkov | ||
| 5 | * Copyright (c) 2014 Derek Buitenhuis | ||
| 6 | * | ||
| 7 | * This file is part of FFmpeg. | ||
| 8 | * | ||
| 9 | * FFmpeg is free software; you can redistribute it and/or | ||
| 10 | * modify it under the terms of the GNU Lesser General Public | ||
| 11 | * License as published by the Free Software Foundation; either | ||
| 12 | * version 2.1 of the License, or (at your option) any later version. | ||
| 13 | * | ||
| 14 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 17 | * Lesser General Public License for more details. | ||
| 18 | * | ||
| 19 | * You should have received a copy of the GNU Lesser General Public | ||
| 20 | * License along with FFmpeg; if not, write to the Free Software | ||
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 22 | */ | ||
| 23 | |||
| 24 | #include "libavutil/common.h" | ||
| 25 | #include "libavutil/mem.h" | ||
| 26 | #include "libavutil/mem_internal.h" | ||
| 27 | #include "libavutil/opt.h" | ||
| 28 | #include "avcodec.h" | ||
| 29 | #include "codec_internal.h" | ||
| 30 | #include "decode.h" | ||
| 31 | #include "get_bits.h" | ||
| 32 | #include "golomb.h" | ||
| 33 | |||
| 34 | typedef struct FICThreadContext { | ||
| 35 | DECLARE_ALIGNED(16, int16_t, block)[64]; | ||
| 36 | const uint8_t *src; | ||
| 37 | int slice_h; | ||
| 38 | int src_size; | ||
| 39 | int y_off; | ||
| 40 | int p_frame; | ||
| 41 | } FICThreadContext; | ||
| 42 | |||
| 43 | typedef struct FICContext { | ||
| 44 | AVClass *class; | ||
| 45 | AVCodecContext *avctx; | ||
| 46 | AVFrame *frame; | ||
| 47 | AVFrame *final_frame; | ||
| 48 | |||
| 49 | FICThreadContext *slice_data; | ||
| 50 | int slice_data_size; | ||
| 51 | |||
| 52 | const uint8_t *qmat; | ||
| 53 | |||
| 54 | enum AVPictureType cur_frame_type; | ||
| 55 | |||
| 56 | int aligned_width, aligned_height; | ||
| 57 | int num_slices, slice_h; | ||
| 58 | |||
| 59 | int skip_cursor; | ||
| 60 | } FICContext; | ||
| 61 | |||
| 62 | static const uint8_t fic_qmat_hq[64] = { | ||
| 63 | 1, 2, 2, 2, 3, 3, 3, 4, | ||
| 64 | 2, 2, 2, 3, 3, 3, 4, 4, | ||
| 65 | 2, 2, 3, 3, 3, 4, 4, 4, | ||
| 66 | 2, 2, 3, 3, 3, 4, 4, 5, | ||
| 67 | 2, 3, 3, 3, 4, 4, 5, 6, | ||
| 68 | 3, 3, 3, 4, 4, 5, 6, 7, | ||
| 69 | 3, 3, 3, 4, 4, 5, 7, 7, | ||
| 70 | 3, 3, 4, 4, 5, 7, 7, 7, | ||
| 71 | }; | ||
| 72 | |||
| 73 | static const uint8_t fic_qmat_lq[64] = { | ||
| 74 | 1, 5, 6, 7, 8, 9, 9, 11, | ||
| 75 | 5, 5, 7, 8, 9, 9, 11, 12, | ||
| 76 | 6, 7, 8, 9, 9, 11, 11, 12, | ||
| 77 | 7, 7, 8, 9, 9, 11, 12, 13, | ||
| 78 | 7, 8, 9, 9, 10, 11, 13, 16, | ||
| 79 | 8, 9, 9, 10, 11, 13, 16, 19, | ||
| 80 | 8, 9, 9, 11, 12, 15, 18, 23, | ||
| 81 | 9, 9, 11, 12, 15, 18, 23, 27 | ||
| 82 | }; | ||
| 83 | |||
| 84 | static const uint8_t fic_header[7] = { 0, 0, 1, 'F', 'I', 'C', 'V' }; | ||
| 85 | |||
| 86 | #define FIC_HEADER_SIZE 27 | ||
| 87 | #define CURSOR_OFFSET 59 | ||
| 88 | #define CURSOR_SIZE 4096 | ||
| 89 | |||
| 90 | 2061536 | static av_always_inline void fic_idct(int16_t *blk, int step, int shift, int rnd) | |
| 91 | { | ||
| 92 | 2061536 | const unsigned t0 = 27246 * blk[3 * step] + 18405 * blk[5 * step]; | |
| 93 | 2061536 | const unsigned t1 = 27246 * blk[5 * step] - 18405 * blk[3 * step]; | |
| 94 | 2061536 | const unsigned t2 = 6393 * blk[7 * step] + 32139 * blk[1 * step]; | |
| 95 | 2061536 | const unsigned t3 = 6393 * blk[1 * step] - 32139 * blk[7 * step]; | |
| 96 | 2061536 | const unsigned t4 = 5793U * ((int)(t2 + t0 + 0x800) >> 12); | |
| 97 | 2061536 | const unsigned t5 = 5793U * ((int)(t3 + t1 + 0x800) >> 12); | |
| 98 | 2061536 | const unsigned t6 = t2 - t0; | |
| 99 | 2061536 | const unsigned t7 = t3 - t1; | |
| 100 | 2061536 | const unsigned t8 = 17734 * blk[2 * step] - 42813 * blk[6 * step]; | |
| 101 | 2061536 | const unsigned t9 = 17734 * blk[6 * step] + 42814 * blk[2 * step]; | |
| 102 | 2061536 | const unsigned tA = (blk[0 * step] - blk[4 * step]) * 32768 + rnd; | |
| 103 | 2061536 | const unsigned tB = (blk[0 * step] + blk[4 * step]) * 32768 + rnd; | |
| 104 | 2061536 | blk[0 * step] = (int)( t4 + t9 + tB) >> shift; | |
| 105 | 2061536 | blk[1 * step] = (int)( t6 + t7 + t8 + tA) >> shift; | |
| 106 | 2061536 | blk[2 * step] = (int)( t6 - t7 - t8 + tA) >> shift; | |
| 107 | 2061536 | blk[3 * step] = (int)( t5 - t9 + tB) >> shift; | |
| 108 | 2061536 | blk[4 * step] = (int)( -t5 - t9 + tB) >> shift; | |
| 109 | 2061536 | blk[5 * step] = (int)(-(t6 - t7) - t8 + tA) >> shift; | |
| 110 | 2061536 | blk[6 * step] = (int)(-(t6 + t7) + t8 + tA) >> shift; | |
| 111 | 2061536 | blk[7 * step] = (int)( -t4 + t9 + tB) >> shift; | |
| 112 | 2061536 | } | |
| 113 | |||
| 114 | 128846 | static void fic_idct_put(uint8_t *dst, int stride, int16_t *block) | |
| 115 | { | ||
| 116 | int i, j; | ||
| 117 | int16_t *ptr; | ||
| 118 | |||
| 119 | 128846 | ptr = block; | |
| 120 | 128846 | fic_idct(ptr++, 8, 13, (1 << 12) + (1 << 17)); | |
| 121 |
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1030768 | for (i = 1; i < 8; i++) { |
| 122 | 901922 | fic_idct(ptr, 8, 13, 1 << 12); | |
| 123 | 901922 | ptr++; | |
| 124 | } | ||
| 125 | |||
| 126 | 128846 | ptr = block; | |
| 127 |
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1159614 | for (i = 0; i < 8; i++) { |
| 128 | 1030768 | fic_idct(ptr, 1, 20, 0); | |
| 129 | 1030768 | ptr += 8; | |
| 130 | } | ||
| 131 | |||
| 132 | 128846 | ptr = block; | |
| 133 |
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1159614 | for (j = 0; j < 8; j++) { |
| 134 |
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9276912 | for (i = 0; i < 8; i++) |
| 135 | 8246144 | dst[i] = av_clip_uint8(ptr[i]); | |
| 136 | 1030768 | dst += stride; | |
| 137 | 1030768 | ptr += 8; | |
| 138 | } | ||
| 139 | 128846 | } | |
| 140 | 1077100 | static int fic_decode_block(FICContext *ctx, GetBitContext *gb, | |
| 141 | uint8_t *dst, int stride, int16_t *block, int *is_p) | ||
| 142 | { | ||
| 143 | int i, num_coeff; | ||
| 144 | |||
| 145 |
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1077100 | if (get_bits_left(gb) < 8) |
| 146 | 6 | return AVERROR_INVALIDDATA; | |
| 147 | |||
| 148 | /* Is it a skip block? */ | ||
| 149 |
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1077094 | if (get_bits1(gb)) { |
| 150 | 948248 | *is_p = 1; | |
| 151 | 948248 | return 0; | |
| 152 | } | ||
| 153 | |||
| 154 | 128846 | memset(block, 0, sizeof(*block) * 64); | |
| 155 | |||
| 156 | 128846 | num_coeff = get_bits(gb, 7); | |
| 157 |
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128846 | if (num_coeff > 64) |
| 158 | ✗ | return AVERROR_INVALIDDATA; | |
| 159 | |||
| 160 |
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2378622 | for (i = 0; i < num_coeff; i++) { |
| 161 | 2249776 | int v = get_se_golomb(gb); | |
| 162 |
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2249776 | if (v < -2048 || v > 2048) |
| 163 | ✗ | return AVERROR_INVALIDDATA; | |
| 164 | 2249776 | block[ff_zigzag_direct[i]] = v * | |
| 165 | 2249776 | ctx->qmat[ff_zigzag_direct[i]]; | |
| 166 | } | ||
| 167 | |||
| 168 | 128846 | fic_idct_put(dst, stride, block); | |
| 169 | |||
| 170 | 128846 | return 0; | |
| 171 | } | ||
| 172 | |||
| 173 | 184 | static int fic_decode_slice(AVCodecContext *avctx, void *tdata) | |
| 174 | { | ||
| 175 | 184 | FICContext *ctx = avctx->priv_data; | |
| 176 | 184 | FICThreadContext *tctx = tdata; | |
| 177 | GetBitContext gb; | ||
| 178 | 184 | const uint8_t *src = tctx->src; | |
| 179 | 184 | int slice_h = tctx->slice_h; | |
| 180 | 184 | int src_size = tctx->src_size; | |
| 181 | 184 | int y_off = tctx->y_off; | |
| 182 | int x, y, p, ret; | ||
| 183 | |||
| 184 | 184 | ret = init_get_bits8(&gb, src, src_size); | |
| 185 |
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184 | if (ret < 0) |
| 186 | 8 | return ret; | |
| 187 | |||
| 188 |
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698 | for (p = 0; p < 3; p++) { |
| 189 | 528 | int stride = ctx->frame->linesize[p]; | |
| 190 | 528 | uint8_t* dst = ctx->frame->data[p] + (y_off >> !!p) * stride; | |
| 191 | |||
| 192 |
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8970 | for (y = 0; y < (slice_h >> !!p); y += 8) { |
| 193 |
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1085542 | for (x = 0; x < (ctx->aligned_width >> !!p); x += 8) { |
| 194 | int ret; | ||
| 195 | |||
| 196 |
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1077100 | if ((ret = fic_decode_block(ctx, &gb, dst + x, stride, |
| 197 | 1077100 | tctx->block, &tctx->p_frame)) != 0) | |
| 198 | 6 | return ret; | |
| 199 | } | ||
| 200 | |||
| 201 | 8442 | dst += 8 * stride; | |
| 202 | } | ||
| 203 | } | ||
| 204 | |||
| 205 | 170 | return 0; | |
| 206 | } | ||
| 207 | |||
| 208 | 1472 | static av_always_inline void fic_alpha_blend(uint8_t *dst, uint8_t *src, | |
| 209 | int size, uint8_t *alpha) | ||
| 210 | { | ||
| 211 | int i; | ||
| 212 | |||
| 213 |
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36800 | for (i = 0; i < size; i++) |
| 214 | 35328 | dst[i] += ((src[i] - dst[i]) * alpha[i]) >> 8; | |
| 215 | 1472 | } | |
| 216 | |||
| 217 | 23 | static void fic_draw_cursor(AVCodecContext *avctx, const uint8_t cursor_buf[CURSOR_SIZE], | |
| 218 | int cur_x, int cur_y) | ||
| 219 | { | ||
| 220 | 23 | FICContext *ctx = avctx->priv_data; | |
| 221 | 23 | const uint8_t *ptr = cursor_buf; | |
| 222 | uint8_t *dstptr[3]; | ||
| 223 | uint8_t planes[4][1024]; | ||
| 224 | uint8_t chroma[3][256]; | ||
| 225 | int i, j, p; | ||
| 226 | |||
| 227 | /* Convert to YUVA444. */ | ||
| 228 |
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23575 | for (i = 0; i < 1024; i++) { |
| 229 | 23552 | planes[0][i] = (( 25 * ptr[0] + 129 * ptr[1] + 66 * ptr[2]) / 255) + 16; | |
| 230 | 23552 | planes[1][i] = ((-38 * ptr[0] + 112 * ptr[1] + -74 * ptr[2]) / 255) + 128; | |
| 231 | 23552 | planes[2][i] = ((-18 * ptr[0] + 112 * ptr[1] + -94 * ptr[2]) / 255) + 128; | |
| 232 | 23552 | planes[3][i] = ptr[3]; | |
| 233 | |||
| 234 | 23552 | ptr += 4; | |
| 235 | } | ||
| 236 | |||
| 237 | /* Subsample chroma. */ | ||
| 238 |
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391 | for (i = 0; i < 32; i += 2) |
| 239 |
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6256 | for (j = 0; j < 32; j += 2) |
| 240 |
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23552 | for (p = 0; p < 3; p++) |
| 241 | 17664 | chroma[p][16 * (i / 2) + j / 2] = (planes[p + 1][32 * i + j ] + | |
| 242 | 17664 | planes[p + 1][32 * i + j + 1] + | |
| 243 | 17664 | planes[p + 1][32 * (i + 1) + j ] + | |
| 244 | 17664 | planes[p + 1][32 * (i + 1) + j + 1]) / 4; | |
| 245 | |||
| 246 | /* Seek to x/y pos of cursor. */ | ||
| 247 |
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92 | for (i = 0; i < 3; i++) |
| 248 | 69 | dstptr[i] = ctx->final_frame->data[i] + | |
| 249 | 69 | (ctx->final_frame->linesize[i] * (cur_y >> !!i)) + | |
| 250 | 69 | (cur_x >> !!i) + !!i; | |
| 251 | |||
| 252 | /* Copy. */ | ||
| 253 |
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391 | for (i = 0; i < FFMIN(32, avctx->height - cur_y) - 1; i += 2) { |
| 254 | 368 | int lsize = FFMIN(32, avctx->width - cur_x); | |
| 255 | 368 | int csize = lsize / 2; | |
| 256 | |||
| 257 | 368 | fic_alpha_blend(dstptr[0], | |
| 258 | 368 | planes[0] + i * 32, lsize, planes[3] + i * 32); | |
| 259 | 368 | fic_alpha_blend(dstptr[0] + ctx->final_frame->linesize[0], | |
| 260 | 368 | planes[0] + (i + 1) * 32, lsize, planes[3] + (i + 1) * 32); | |
| 261 | 368 | fic_alpha_blend(dstptr[1], | |
| 262 | 368 | chroma[0] + (i / 2) * 16, csize, chroma[2] + (i / 2) * 16); | |
| 263 | 368 | fic_alpha_blend(dstptr[2], | |
| 264 | 368 | chroma[1] + (i / 2) * 16, csize, chroma[2] + (i / 2) * 16); | |
| 265 | |||
| 266 | 368 | dstptr[0] += ctx->final_frame->linesize[0] * 2; | |
| 267 | 368 | dstptr[1] += ctx->final_frame->linesize[1]; | |
| 268 | 368 | dstptr[2] += ctx->final_frame->linesize[2]; | |
| 269 | } | ||
| 270 | 23 | } | |
| 271 | |||
| 272 | 242 | static int fic_decode_frame(AVCodecContext *avctx, AVFrame *rframe, | |
| 273 | int *got_frame, AVPacket *avpkt) | ||
| 274 | { | ||
| 275 | 242 | FICContext *ctx = avctx->priv_data; | |
| 276 | 242 | const uint8_t *src = avpkt->data; | |
| 277 | int ret; | ||
| 278 | int slice, nslices; | ||
| 279 | int msize; | ||
| 280 | int tsize; | ||
| 281 | int cur_x, cur_y; | ||
| 282 | 242 | int skip_cursor = ctx->skip_cursor; | |
| 283 | const uint8_t *sdata; | ||
| 284 | |||
| 285 | /* Header + at least one slice (4) */ | ||
| 286 |
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242 | if (avpkt->size < FIC_HEADER_SIZE + 4) { |
| 287 | ✗ | av_log(avctx, AV_LOG_ERROR, "Frame data is too small.\n"); | |
| 288 | ✗ | return AVERROR_INVALIDDATA; | |
| 289 | } | ||
| 290 | |||
| 291 | /* Check for header. */ | ||
| 292 |
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242 | if (memcmp(src, fic_header, 7)) |
| 293 | ✗ | av_log(avctx, AV_LOG_WARNING, "Invalid FIC Header.\n"); | |
| 294 | |||
| 295 | /* Is it a skip frame? */ | ||
| 296 |
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242 | if (src[17]) { |
| 297 |
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196 | if (!ctx->final_frame->data[0]) { |
| 298 | ✗ | av_log(avctx, AV_LOG_WARNING, "Initial frame is skipped\n"); | |
| 299 | ✗ | return AVERROR_INVALIDDATA; | |
| 300 | } | ||
| 301 | 196 | ret = ff_reget_buffer(avctx, ctx->final_frame, | |
| 302 | FF_REGET_BUFFER_FLAG_READONLY); | ||
| 303 |
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196 | if (ret < 0) |
| 304 | ✗ | return ret; | |
| 305 | 196 | goto skip; | |
| 306 | } | ||
| 307 | |||
| 308 | 46 | nslices = src[13]; | |
| 309 |
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46 | if (!nslices) { |
| 310 | ✗ | av_log(avctx, AV_LOG_ERROR, "Zero slices found.\n"); | |
| 311 | ✗ | return AVERROR_INVALIDDATA; | |
| 312 | } | ||
| 313 | |||
| 314 | /* High or Low Quality Matrix? */ | ||
| 315 |
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46 | ctx->qmat = src[23] ? fic_qmat_hq : fic_qmat_lq; |
| 316 | |||
| 317 | /* Skip cursor data. */ | ||
| 318 | 46 | tsize = AV_RB24(src + 24); | |
| 319 |
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46 | if (tsize > avpkt->size - FIC_HEADER_SIZE) { |
| 320 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
| 321 | "Packet is too small to contain cursor (%d vs %d bytes).\n", | ||
| 322 | ✗ | tsize, avpkt->size - FIC_HEADER_SIZE); | |
| 323 | ✗ | return AVERROR_INVALIDDATA; | |
| 324 | } | ||
| 325 | |||
| 326 |
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46 | if (!tsize || !AV_RL16(src + 37) || !AV_RL16(src + 39)) |
| 327 | ✗ | skip_cursor = 1; | |
| 328 | |||
| 329 |
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46 | if (!skip_cursor && tsize < 32) { |
| 330 | ✗ | av_log(avctx, AV_LOG_WARNING, | |
| 331 | "Cursor data too small. Skipping cursor.\n"); | ||
| 332 | ✗ | skip_cursor = 1; | |
| 333 | } | ||
| 334 | |||
| 335 | /* Cursor position. */ | ||
| 336 | 46 | cur_x = AV_RL16(src + 33); | |
| 337 | 46 | cur_y = AV_RL16(src + 35); | |
| 338 |
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46 | if (!skip_cursor && (cur_x > avctx->width || cur_y > avctx->height)) { |
| 339 | ✗ | av_log(avctx, AV_LOG_DEBUG, | |
| 340 | "Invalid cursor position: (%d,%d). Skipping cursor.\n", | ||
| 341 | cur_x, cur_y); | ||
| 342 | ✗ | skip_cursor = 1; | |
| 343 | } | ||
| 344 | |||
| 345 |
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46 | if (!skip_cursor && (AV_RL16(src + 37) != 32 || AV_RL16(src + 39) != 32)) { |
| 346 | ✗ | av_log(avctx, AV_LOG_WARNING, | |
| 347 | "Invalid cursor size. Skipping cursor.\n"); | ||
| 348 | ✗ | skip_cursor = 1; | |
| 349 | } | ||
| 350 | |||
| 351 |
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46 | if (!skip_cursor && avpkt->size < CURSOR_OFFSET + CURSOR_SIZE) |
| 352 | ✗ | skip_cursor = 1; | |
| 353 | |||
| 354 | /* Slice height for all but the last slice. */ | ||
| 355 | 46 | ctx->slice_h = 16 * (ctx->aligned_height >> 4) / nslices; | |
| 356 |
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46 | if (ctx->slice_h % 16) |
| 357 | ✗ | ctx->slice_h = FFALIGN(ctx->slice_h - 16, 16); | |
| 358 | |||
| 359 | /* First slice offset and remaining data. */ | ||
| 360 | 46 | sdata = src + tsize + FIC_HEADER_SIZE + 4 * nslices; | |
| 361 | 46 | msize = avpkt->size - nslices * 4 - tsize - FIC_HEADER_SIZE; | |
| 362 | |||
| 363 |
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46 | if (msize <= ctx->aligned_width/8 * (ctx->aligned_height/8) / 8) { |
| 364 | ✗ | av_log(avctx, AV_LOG_ERROR, "Not enough frame data to decode.\n"); | |
| 365 | ✗ | return AVERROR_INVALIDDATA; | |
| 366 | } | ||
| 367 | |||
| 368 | /* Allocate slice data. */ | ||
| 369 | 46 | av_fast_malloc(&ctx->slice_data, &ctx->slice_data_size, | |
| 370 | nslices * sizeof(ctx->slice_data[0])); | ||
| 371 |
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46 | if (!ctx->slice_data_size) { |
| 372 | ✗ | av_log(avctx, AV_LOG_ERROR, "Could not allocate slice data.\n"); | |
| 373 | ✗ | return AVERROR(ENOMEM); | |
| 374 | } | ||
| 375 | 46 | memset(ctx->slice_data, 0, nslices * sizeof(ctx->slice_data[0])); | |
| 376 | |||
| 377 |
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230 | for (slice = 0; slice < nslices; slice++) { |
| 378 | 184 | unsigned slice_off = AV_RB32(src + tsize + FIC_HEADER_SIZE + slice * 4); | |
| 379 | unsigned slice_size; | ||
| 380 | 184 | int y_off = ctx->slice_h * slice; | |
| 381 | 184 | int slice_h = ctx->slice_h; | |
| 382 | |||
| 383 | /* | ||
| 384 | * Either read the slice size, or consume all data left. | ||
| 385 | * Also, special case the last slight height. | ||
| 386 | */ | ||
| 387 |
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184 | if (slice == nslices - 1) { |
| 388 | 46 | slice_size = msize; | |
| 389 | 46 | slice_h = FFALIGN(avctx->height - ctx->slice_h * (nslices - 1), 16); | |
| 390 | } else { | ||
| 391 | 138 | slice_size = AV_RB32(src + tsize + FIC_HEADER_SIZE + slice * 4 + 4); | |
| 392 |
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138 | if (slice_size < slice_off) |
| 393 | ✗ | return AVERROR_INVALIDDATA; | |
| 394 | } | ||
| 395 | |||
| 396 |
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184 | if (slice_size < slice_off || slice_size > msize) |
| 397 | 8 | continue; | |
| 398 | |||
| 399 | 176 | slice_size -= slice_off; | |
| 400 | |||
| 401 | 176 | ctx->slice_data[slice].src = sdata + slice_off; | |
| 402 | 176 | ctx->slice_data[slice].src_size = slice_size; | |
| 403 | 176 | ctx->slice_data[slice].slice_h = slice_h; | |
| 404 | 176 | ctx->slice_data[slice].y_off = y_off; | |
| 405 | } | ||
| 406 | |||
| 407 |
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46 | if ((ret = ff_reget_buffer(avctx, ctx->frame, 0)) < 0) |
| 408 | ✗ | return ret; | |
| 409 | |||
| 410 |
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46 | if ((ret = avctx->execute(avctx, fic_decode_slice, ctx->slice_data, |
| 411 | NULL, nslices, sizeof(ctx->slice_data[0]))) < 0) | ||
| 412 | ✗ | return ret; | |
| 413 | |||
| 414 | 46 | ctx->frame->flags |= AV_FRAME_FLAG_KEY; | |
| 415 | 46 | ctx->frame->pict_type = AV_PICTURE_TYPE_I; | |
| 416 |
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70 | for (slice = 0; slice < nslices; slice++) { |
| 417 |
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64 | if (ctx->slice_data[slice].p_frame) { |
| 418 | 40 | ctx->frame->flags &= ~AV_FRAME_FLAG_KEY; | |
| 419 | 40 | ctx->frame->pict_type = AV_PICTURE_TYPE_P; | |
| 420 | 40 | break; | |
| 421 | } | ||
| 422 | } | ||
| 423 | 46 | ret = av_frame_replace(ctx->final_frame, ctx->frame); | |
| 424 |
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46 | if (ret < 0) |
| 425 | ✗ | return ret; | |
| 426 | |||
| 427 | /* Draw cursor if needed. */ | ||
| 428 |
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46 | if (!skip_cursor) { |
| 429 | /* Make frame writable. */ | ||
| 430 | 23 | ret = ff_reget_buffer(avctx, ctx->final_frame, 0); | |
| 431 |
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23 | if (ret < 0) |
| 432 | ✗ | return ret; | |
| 433 | |||
| 434 | 23 | fic_draw_cursor(avctx, src + CURSOR_OFFSET, cur_x, cur_y); | |
| 435 | } | ||
| 436 | |||
| 437 | 23 | skip: | |
| 438 |
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242 | if ((ret = av_frame_ref(rframe, ctx->final_frame)) < 0) |
| 439 | ✗ | return ret; | |
| 440 | 242 | *got_frame = 1; | |
| 441 | |||
| 442 | 242 | return avpkt->size; | |
| 443 | } | ||
| 444 | |||
| 445 | 4 | static av_cold int fic_decode_close(AVCodecContext *avctx) | |
| 446 | { | ||
| 447 | 4 | FICContext *ctx = avctx->priv_data; | |
| 448 | |||
| 449 | 4 | av_freep(&ctx->slice_data); | |
| 450 | 4 | av_frame_free(&ctx->final_frame); | |
| 451 | 4 | av_frame_free(&ctx->frame); | |
| 452 | |||
| 453 | 4 | return 0; | |
| 454 | } | ||
| 455 | |||
| 456 | 4 | static av_cold int fic_decode_init(AVCodecContext *avctx) | |
| 457 | { | ||
| 458 | 4 | FICContext *ctx = avctx->priv_data; | |
| 459 | |||
| 460 | /* Initialize various context values */ | ||
| 461 | 4 | ctx->avctx = avctx; | |
| 462 | 4 | ctx->aligned_width = FFALIGN(avctx->width, 16); | |
| 463 | 4 | ctx->aligned_height = FFALIGN(avctx->height, 16); | |
| 464 | |||
| 465 | 4 | avctx->pix_fmt = AV_PIX_FMT_YUV420P; | |
| 466 | 4 | avctx->bits_per_raw_sample = 8; | |
| 467 | |||
| 468 | 4 | ctx->frame = av_frame_alloc(); | |
| 469 |
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4 | if (!ctx->frame) |
| 470 | ✗ | return AVERROR(ENOMEM); | |
| 471 | 4 | ctx->final_frame = av_frame_alloc(); | |
| 472 |
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4 | if (!ctx->final_frame) |
| 473 | ✗ | return AVERROR(ENOMEM); | |
| 474 | |||
| 475 | 4 | return 0; | |
| 476 | } | ||
| 477 | |||
| 478 | static const AVOption options[] = { | ||
| 479 | { "skip_cursor", "skip the cursor", offsetof(FICContext, skip_cursor), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM }, | ||
| 480 | { NULL }, | ||
| 481 | }; | ||
| 482 | |||
| 483 | static const AVClass fic_decoder_class = { | ||
| 484 | .class_name = "FIC decoder", | ||
| 485 | .item_name = av_default_item_name, | ||
| 486 | .option = options, | ||
| 487 | .version = LIBAVUTIL_VERSION_INT, | ||
| 488 | }; | ||
| 489 | |||
| 490 | const FFCodec ff_fic_decoder = { | ||
| 491 | .p.name = "fic", | ||
| 492 | CODEC_LONG_NAME("Mirillis FIC"), | ||
| 493 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
| 494 | .p.id = AV_CODEC_ID_FIC, | ||
| 495 | .priv_data_size = sizeof(FICContext), | ||
| 496 | .init = fic_decode_init, | ||
| 497 | FF_CODEC_DECODE_CB(fic_decode_frame), | ||
| 498 | .close = fic_decode_close, | ||
| 499 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_SLICE_THREADS, | ||
| 500 | .p.priv_class = &fic_decoder_class, | ||
| 501 | .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, | ||
| 502 | }; | ||
| 503 |