FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/proresdec.c
Date: 2024-07-16 12:46:59
Exec Total Coverage
Lines: 354 453 78.1%
Functions: 14 16 87.5%
Branches: 185 275 67.3%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2010-2011 Maxim Poliakovski
3 * Copyright (c) 2010-2011 Elvis Presley
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * Known FOURCCs: 'apch' (HQ), 'apcn' (SD), 'apcs' (LT), 'apco' (Proxy), 'ap4h' (4444), 'ap4x' (4444 XQ)
25 */
26
27 //#define DEBUG
28
29 #define LONG_BITSTREAM_READER
30
31 #include "config_components.h"
32
33 #include "libavutil/internal.h"
34 #include "libavutil/mem.h"
35 #include "libavutil/mem_internal.h"
36
37 #include "avcodec.h"
38 #include "codec_internal.h"
39 #include "decode.h"
40 #include "get_bits.h"
41 #include "hwaccel_internal.h"
42 #include "hwconfig.h"
43 #include "idctdsp.h"
44 #include "profiles.h"
45 #include "proresdec.h"
46 #include "proresdata.h"
47 #include "thread.h"
48
49 #define ALPHA_SHIFT_16_TO_10(alpha_val) (alpha_val >> 6)
50 #define ALPHA_SHIFT_8_TO_10(alpha_val) ((alpha_val << 2) | (alpha_val >> 6))
51 #define ALPHA_SHIFT_16_TO_12(alpha_val) (alpha_val >> 4)
52 #define ALPHA_SHIFT_8_TO_12(alpha_val) ((alpha_val << 4) | (alpha_val >> 4))
53
54 5100 static void inline unpack_alpha(GetBitContext *gb, uint16_t *dst, int num_coeffs,
55 const int num_bits, const int decode_precision) {
56 5100 const int mask = (1 << num_bits) - 1;
57 int i, idx, val, alpha_val;
58
59 5100 idx = 0;
60 5100 alpha_val = mask;
61 do {
62 do {
63
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58400 if (get_bits1(gb)) {
64 43404 val = get_bits(gb, num_bits);
65 } else {
66 int sign;
67
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14996 val = get_bits(gb, num_bits == 16 ? 7 : 4);
68 14996 sign = val & 1;
69 14996 val = (val + 2) >> 1;
70
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14996 if (sign)
71 val = -val;
72 }
73 58400 alpha_val = (alpha_val + val) & mask;
74
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58400 if (num_bits == 16) {
75
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58400 if (decode_precision == 10) {
76 dst[idx++] = ALPHA_SHIFT_16_TO_10(alpha_val);
77 } else { /* 12b */
78 58400 dst[idx++] = ALPHA_SHIFT_16_TO_12(alpha_val);
79 }
80 } else {
81 if (decode_precision == 10) {
82 dst[idx++] = ALPHA_SHIFT_8_TO_10(alpha_val);
83 } else { /* 12b */
84 dst[idx++] = ALPHA_SHIFT_8_TO_12(alpha_val);
85 }
86 }
87
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58400 if (idx >= num_coeffs)
88 36 break;
89
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58364 } while (get_bits_left(gb)>0 && get_bits1(gb));
90 37552 val = get_bits(gb, 4);
91
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37552 if (!val)
92 35779 val = get_bits(gb, 11);
93
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37552 if (idx + val > num_coeffs)
94 140 val = num_coeffs - idx;
95
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37552 if (num_bits == 16) {
96
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10423952 for (i = 0; i < val; i++) {
97
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10386400 if (decode_precision == 10) {
98 dst[idx++] = ALPHA_SHIFT_16_TO_10(alpha_val);
99 } else { /* 12b */
100 10386400 dst[idx++] = ALPHA_SHIFT_16_TO_12(alpha_val);
101 }
102 }
103 } else {
104 for (i = 0; i < val; i++) {
105 if (decode_precision == 10) {
106 dst[idx++] = ALPHA_SHIFT_8_TO_10(alpha_val);
107 } else { /* 12b */
108 dst[idx++] = ALPHA_SHIFT_8_TO_12(alpha_val);
109 }
110 }
111 }
112
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37552 } while (idx < num_coeffs);
113 5100 }
114
115 static void unpack_alpha_10(GetBitContext *gb, uint16_t *dst, int num_coeffs,
116 const int num_bits)
117 {
118 if (num_bits == 16) {
119 unpack_alpha(gb, dst, num_coeffs, 16, 10);
120 } else { /* 8 bits alpha */
121 unpack_alpha(gb, dst, num_coeffs, 8, 10);
122 }
123 }
124
125 5100 static void unpack_alpha_12(GetBitContext *gb, uint16_t *dst, int num_coeffs,
126 const int num_bits)
127 {
128
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5100 if (num_bits == 16) {
129 5100 unpack_alpha(gb, dst, num_coeffs, 16, 12);
130 } else { /* 8 bits alpha */
131 unpack_alpha(gb, dst, num_coeffs, 8, 12);
132 }
133 5100 }
134
135 73 static av_cold int decode_init(AVCodecContext *avctx)
136 {
137 73 int ret = 0;
138 73 ProresContext *ctx = avctx->priv_data;
139 uint8_t idct_permutation[64];
140
141 73 avctx->bits_per_raw_sample = 10;
142
143
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73 switch (avctx->codec_tag) {
144 14 case MKTAG('a','p','c','o'):
145 14 avctx->profile = AV_PROFILE_PRORES_PROXY;
146 14 break;
147 2 case MKTAG('a','p','c','s'):
148 2 avctx->profile = AV_PROFILE_PRORES_LT;
149 2 break;
150 21 case MKTAG('a','p','c','n'):
151 21 avctx->profile = AV_PROFILE_PRORES_STANDARD;
152 21 break;
153 12 case MKTAG('a','p','c','h'):
154 12 avctx->profile = AV_PROFILE_PRORES_HQ;
155 12 break;
156 24 case MKTAG('a','p','4','h'):
157 24 avctx->profile = AV_PROFILE_PRORES_4444;
158 24 avctx->bits_per_raw_sample = 12;
159 24 break;
160 case MKTAG('a','p','4','x'):
161 avctx->profile = AV_PROFILE_PRORES_XQ;
162 avctx->bits_per_raw_sample = 12;
163 break;
164 default:
165 avctx->profile = AV_PROFILE_UNKNOWN;
166 av_log(avctx, AV_LOG_WARNING, "Unknown prores profile %d\n", avctx->codec_tag);
167 }
168
169
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73 if (avctx->bits_per_raw_sample == 10) {
170 49 av_log(avctx, AV_LOG_DEBUG, "Auto bitdepth precision. Use 10b decoding based on codec tag.\n");
171 } else { /* 12b */
172 24 av_log(avctx, AV_LOG_DEBUG, "Auto bitdepth precision. Use 12b decoding based on codec tag.\n");
173 }
174
175 73 ff_blockdsp_init(&ctx->bdsp);
176 73 ret = ff_proresdsp_init(&ctx->prodsp, avctx->bits_per_raw_sample);
177
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73 if (ret < 0) {
178 av_log(avctx, AV_LOG_ERROR, "Fail to init proresdsp for bits per raw sample %d\n", avctx->bits_per_raw_sample);
179 return ret;
180 }
181
182 73 ff_init_scantable_permutation(idct_permutation,
183 73 ctx->prodsp.idct_permutation_type);
184
185 73 ff_permute_scantable(ctx->progressive_scan, ff_prores_progressive_scan, idct_permutation);
186 73 ff_permute_scantable(ctx->interlaced_scan, ff_prores_interlaced_scan, idct_permutation);
187
188 73 ctx->pix_fmt = AV_PIX_FMT_NONE;
189
190
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73 if (avctx->bits_per_raw_sample == 10){
191 49 ctx->unpack_alpha = unpack_alpha_10;
192
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24 } else if (avctx->bits_per_raw_sample == 12){
193 24 ctx->unpack_alpha = unpack_alpha_12;
194 } else {
195 av_log(avctx, AV_LOG_ERROR, "Fail to set unpack_alpha for bits per raw sample %d\n", avctx->bits_per_raw_sample);
196 return AVERROR_BUG;
197 }
198 73 return ret;
199 }
200
201 1061 static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
202 const int data_size, AVCodecContext *avctx)
203 {
204 int hdr_size, width, height, flags;
205 int version;
206 const uint8_t *ptr;
207 enum AVPixelFormat pix_fmt;
208
209 1061 hdr_size = AV_RB16(buf);
210 ff_dlog(avctx, "header size %d\n", hdr_size);
211
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1061 if (hdr_size > data_size) {
212 av_log(avctx, AV_LOG_ERROR, "error, wrong header size\n");
213 return AVERROR_INVALIDDATA;
214 }
215
216 1061 version = AV_RB16(buf + 2);
217 ff_dlog(avctx, "%.4s version %d\n", buf+4, version);
218
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1061 if (version > 1) {
219 av_log(avctx, AV_LOG_ERROR, "unsupported version: %d\n", version);
220 return AVERROR_PATCHWELCOME;
221 }
222
223 1061 width = AV_RB16(buf + 8);
224 1061 height = AV_RB16(buf + 10);
225
226
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1061 if (width != avctx->width || height != avctx->height) {
227 int ret;
228
229 av_log(avctx, AV_LOG_WARNING, "picture resolution change: %dx%d -> %dx%d\n",
230 avctx->width, avctx->height, width, height);
231 if ((ret = ff_set_dimensions(avctx, width, height)) < 0)
232 return ret;
233 }
234
235 1061 ctx->frame_type = (buf[12] >> 2) & 3;
236 1061 ctx->alpha_info = buf[17] & 0xf;
237
238
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1061 if (ctx->alpha_info > 2) {
239 av_log(avctx, AV_LOG_ERROR, "Invalid alpha mode %d\n", ctx->alpha_info);
240 return AVERROR_INVALIDDATA;
241 }
242
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1061 if (avctx->skip_alpha) ctx->alpha_info = 0;
243
244 ff_dlog(avctx, "frame type %d\n", ctx->frame_type);
245
246
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1061 if (ctx->frame_type == 0) {
247 633 ctx->scan = ctx->progressive_scan; // permuted
248 } else {
249 428 ctx->scan = ctx->interlaced_scan; // permuted
250 428 ctx->frame->flags |= AV_FRAME_FLAG_INTERLACED;
251
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428 if (ctx->frame_type == 1)
252 408 ctx->frame->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST;
253 }
254
255
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1061 if (ctx->alpha_info) {
256
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5 if (avctx->bits_per_raw_sample == 10) {
257 pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUVA444P10 : AV_PIX_FMT_YUVA422P10;
258 } else { /* 12b */
259
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5 pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUVA444P12 : AV_PIX_FMT_YUVA422P12;
260 }
261 } else {
262
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1056 if (avctx->bits_per_raw_sample == 10) {
263
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643 pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P10 : AV_PIX_FMT_YUV422P10;
264 } else { /* 12b */
265
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413 pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P12 : AV_PIX_FMT_YUV422P12;
266 }
267 }
268
269
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1061 if (pix_fmt != ctx->pix_fmt) {
270 #define HWACCEL_MAX (CONFIG_PRORES_VIDEOTOOLBOX_HWACCEL)
271 70 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmtp = pix_fmts;
272 int ret;
273
274 70 ctx->pix_fmt = pix_fmt;
275
276 #if CONFIG_PRORES_VIDEOTOOLBOX_HWACCEL
277 *fmtp++ = AV_PIX_FMT_VIDEOTOOLBOX;
278 #endif
279 70 *fmtp++ = ctx->pix_fmt;
280 70 *fmtp = AV_PIX_FMT_NONE;
281
282
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70 if ((ret = ff_get_format(avctx, pix_fmts)) < 0)
283 return ret;
284
285 70 avctx->pix_fmt = ret;
286 }
287
288 1061 ctx->frame->color_primaries = buf[14];
289 1061 ctx->frame->color_trc = buf[15];
290 1061 ctx->frame->colorspace = buf[16];
291 1061 ctx->frame->color_range = AVCOL_RANGE_MPEG;
292
293 1061 ptr = buf + 20;
294 1061 flags = buf[19];
295 ff_dlog(avctx, "flags %x\n", flags);
296
297
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1061 if (flags & 2) {
298
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1061 if(buf + data_size - ptr < 64) {
299 av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
300 return AVERROR_INVALIDDATA;
301 }
302 1061 ff_permute_scantable(ctx->qmat_luma, ctx->prodsp.idct_permutation, ptr);
303 1061 ptr += 64;
304 } else {
305 memset(ctx->qmat_luma, 4, 64);
306 }
307
308
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1061 if (flags & 1) {
309
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1061 if(buf + data_size - ptr < 64) {
310 av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
311 return AVERROR_INVALIDDATA;
312 }
313 1061 ff_permute_scantable(ctx->qmat_chroma, ctx->prodsp.idct_permutation, ptr);
314 } else {
315 memcpy(ctx->qmat_chroma, ctx->qmat_luma, 64);
316 }
317
318 1061 return hdr_size;
319 }
320
321 1489 static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, const int buf_size)
322 {
323 1489 ProresContext *ctx = avctx->priv_data;
324 int i, hdr_size, slice_count;
325 unsigned pic_data_size;
326 int log2_slice_mb_width, log2_slice_mb_height;
327 int slice_mb_count, mb_x, mb_y;
328 const uint8_t *data_ptr, *index_ptr;
329
330 1489 hdr_size = buf[0] >> 3;
331
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1489 if (hdr_size < 8 || hdr_size > buf_size) {
332 av_log(avctx, AV_LOG_ERROR, "error, wrong picture header size\n");
333 return AVERROR_INVALIDDATA;
334 }
335
336 1489 pic_data_size = AV_RB32(buf + 1);
337
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1489 if (pic_data_size > buf_size) {
338 av_log(avctx, AV_LOG_ERROR, "error, wrong picture data size\n");
339 return AVERROR_INVALIDDATA;
340 }
341
342 1489 log2_slice_mb_width = buf[7] >> 4;
343 1489 log2_slice_mb_height = buf[7] & 0xF;
344
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1489 if (log2_slice_mb_width > 3 || log2_slice_mb_height) {
345 av_log(avctx, AV_LOG_ERROR, "unsupported slice resolution: %dx%d\n",
346 1 << log2_slice_mb_width, 1 << log2_slice_mb_height);
347 return AVERROR_INVALIDDATA;
348 }
349
350 1489 ctx->mb_width = (avctx->width + 15) >> 4;
351
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1489 if (ctx->frame_type)
352 856 ctx->mb_height = (avctx->height + 31) >> 5;
353 else
354 633 ctx->mb_height = (avctx->height + 15) >> 4;
355
356 // QT ignores the written value
357 // slice_count = AV_RB16(buf + 5);
358 1489 slice_count = ctx->mb_height * ((ctx->mb_width >> log2_slice_mb_width) +
359 1489 av_popcount(ctx->mb_width & (1 << log2_slice_mb_width) - 1));
360
361
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1489 if (ctx->slice_count != slice_count || !ctx->slices) {
362 70 av_freep(&ctx->slices);
363 70 ctx->slice_count = 0;
364 70 ctx->slices = av_calloc(slice_count, sizeof(*ctx->slices));
365
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70 if (!ctx->slices)
366 return AVERROR(ENOMEM);
367 70 ctx->slice_count = slice_count;
368 }
369
370
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1489 if (!slice_count)
371 return AVERROR(EINVAL);
372
373
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1489 if (hdr_size + slice_count*2 > buf_size) {
374 av_log(avctx, AV_LOG_ERROR, "error, wrong slice count\n");
375 return AVERROR_INVALIDDATA;
376 }
377
378 // parse slice information
379 1489 index_ptr = buf + hdr_size;
380 1489 data_ptr = index_ptr + slice_count*2;
381
382 1489 slice_mb_count = 1 << log2_slice_mb_width;
383 1489 mb_x = 0;
384 1489 mb_y = 0;
385
386
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89359 for (i = 0; i < slice_count; i++) {
387 87870 SliceContext *slice = &ctx->slices[i];
388
389 87870 slice->data = data_ptr;
390 87870 data_ptr += AV_RB16(index_ptr + i*2);
391
392
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118515 while (ctx->mb_width - mb_x < slice_mb_count)
393 30645 slice_mb_count >>= 1;
394
395 87870 slice->mb_x = mb_x;
396 87870 slice->mb_y = mb_y;
397 87870 slice->mb_count = slice_mb_count;
398 87870 slice->data_size = data_ptr - slice->data;
399
400
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87870 if (slice->data_size < 6) {
401 av_log(avctx, AV_LOG_ERROR, "error, wrong slice data size\n");
402 return AVERROR_INVALIDDATA;
403 }
404
405 87870 mb_x += slice_mb_count;
406
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87870 if (mb_x == ctx->mb_width) {
407 16977 slice_mb_count = 1 << log2_slice_mb_width;
408 16977 mb_x = 0;
409 16977 mb_y++;
410 }
411
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87870 if (data_ptr > buf + buf_size) {
412 av_log(avctx, AV_LOG_ERROR, "error, slice out of bounds\n");
413 return AVERROR_INVALIDDATA;
414 }
415 }
416
417
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1489 if (mb_x || mb_y != ctx->mb_height) {
418 av_log(avctx, AV_LOG_ERROR, "error wrong mb count y %d h %d\n",
419 mb_y, ctx->mb_height);
420 return AVERROR_INVALIDDATA;
421 }
422
423 1489 return pic_data_size;
424 }
425
426 #define DECODE_CODEWORD(val, codebook, SKIP) \
427 do { \
428 unsigned int rice_order, exp_order, switch_bits; \
429 unsigned int q, buf, bits; \
430 \
431 UPDATE_CACHE(re, gb); \
432 buf = GET_CACHE(re, gb); \
433 \
434 /* number of bits to switch between rice and exp golomb */ \
435 switch_bits = codebook & 3; \
436 rice_order = codebook >> 5; \
437 exp_order = (codebook >> 2) & 7; \
438 \
439 q = 31 - av_log2(buf); \
440 \
441 if (q > switch_bits) { /* exp golomb */ \
442 bits = exp_order - switch_bits + (q<<1); \
443 if (bits > FFMIN(MIN_CACHE_BITS, 31)) \
444 return AVERROR_INVALIDDATA; \
445 val = SHOW_UBITS(re, gb, bits) - (1 << exp_order) + \
446 ((switch_bits + 1) << rice_order); \
447 SKIP(re, gb, bits); \
448 } else if (rice_order) { \
449 SKIP_BITS(re, gb, q+1); \
450 val = (q << rice_order) + SHOW_UBITS(re, gb, rice_order); \
451 SKIP(re, gb, rice_order); \
452 } else { \
453 val = q; \
454 SKIP(re, gb, q+1); \
455 } \
456 } while (0)
457
458 #define TOSIGNED(x) (((x) >> 1) ^ (-((x) & 1)))
459
460 #define FIRST_DC_CB 0xB8
461
462 static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
463
464 262098 static av_always_inline int decode_dc_coeffs(GetBitContext *gb, int16_t *out,
465 int blocks_per_slice)
466 {
467 int16_t prev_dc;
468 int code, i, sign;
469
470 262098 OPEN_READER(re, gb);
471
472
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262098 DECODE_CODEWORD(code, FIRST_DC_CB, LAST_SKIP_BITS);
473 262098 prev_dc = TOSIGNED(code);
474 262098 out[0] = prev_dc;
475
476 262098 out += 64; // dc coeff for the next block
477
478 262098 code = 5;
479 262098 sign = 0;
480
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5213076 for (i = 1; i < blocks_per_slice; i++, out += 64) {
481
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4950978 DECODE_CODEWORD(code, dc_codebook[FFMIN(code, 6U)], LAST_SKIP_BITS);
482
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4950978 if(code) sign ^= -(code & 1);
483 1852456 else sign = 0;
484 4950978 prev_dc += (((code + 1) >> 1) ^ sign) - sign;
485 4950978 out[0] = prev_dc;
486 }
487 262098 CLOSE_READER(re, gb);
488 262098 return 0;
489 }
490
491 // adaptive codebook switching lut according to previous run/level values
492 static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29, 0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };
493 static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28, 0x28, 0x28, 0x28, 0x4C };
494
495 262098 static av_always_inline int decode_ac_coeffs(AVCodecContext *avctx, GetBitContext *gb,
496 int16_t *out, int blocks_per_slice)
497 {
498 262098 const ProresContext *ctx = avctx->priv_data;
499 int block_mask, sign;
500 unsigned pos, run, level;
501 int max_coeffs, i, bits_left;
502 262098 int log2_block_count = av_log2(blocks_per_slice);
503
504 262098 OPEN_READER(re, gb);
505 262098 UPDATE_CACHE(re, gb); \
506 262098 run = 4;
507 262098 level = 2;
508
509 262098 max_coeffs = 64 << log2_block_count;
510 262098 block_mask = blocks_per_slice - 1;
511
512 262098 for (pos = block_mask;;) {
513 84950870 bits_left = gb->size_in_bits - re_index;
514
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84950870 if (!bits_left || (bits_left < 32 && !SHOW_UBITS(re, gb, bits_left)))
515 break;
516
517
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84688772 DECODE_CODEWORD(run, run_to_cb[FFMIN(run, 15)], LAST_SKIP_BITS);
518 84688772 pos += run + 1;
519
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84688772 if (pos >= max_coeffs) {
520 av_log(avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", pos, max_coeffs);
521 return AVERROR_INVALIDDATA;
522 }
523
524
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84688772 DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)], SKIP_BITS);
525 84688772 level += 1;
526
527 84688772 i = pos >> log2_block_count;
528
529 84688772 sign = SHOW_SBITS(re, gb, 1);
530 84688772 SKIP_BITS(re, gb, 1);
531 84688772 out[((pos & block_mask) << 6) + ctx->scan[i]] = ((level ^ sign) - sign);
532 }
533
534 262098 CLOSE_READER(re, gb);
535 262098 return 0;
536 }
537
538 87870 static int decode_slice_luma(AVCodecContext *avctx, SliceContext *slice,
539 uint16_t *dst, int dst_stride,
540 const uint8_t *buf, unsigned buf_size,
541 const int16_t *qmat)
542 {
543 87870 const ProresContext *ctx = avctx->priv_data;
544 87870 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
545 int16_t *block;
546 GetBitContext gb;
547 87870 int i, blocks_per_slice = slice->mb_count<<2;
548 int ret;
549
550
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2296434 for (i = 0; i < blocks_per_slice; i++)
551 2208564 ctx->bdsp.clear_block(blocks+(i<<6));
552
553 87870 init_get_bits(&gb, buf, buf_size << 3);
554
555
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87870 if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
556 return ret;
557
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87870 if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
558 return ret;
559
560 87870 block = blocks;
561
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640011 for (i = 0; i < slice->mb_count; i++) {
562 552141 ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
563 552141 ctx->prodsp.idct_put(dst +8, dst_stride, block+(1<<6), qmat);
564 552141 ctx->prodsp.idct_put(dst+4*dst_stride , dst_stride, block+(2<<6), qmat);
565 552141 ctx->prodsp.idct_put(dst+4*dst_stride+8, dst_stride, block+(3<<6), qmat);
566 552141 block += 4*64;
567 552141 dst += 16;
568 }
569 87870 return 0;
570 }
571
572 174228 static int decode_slice_chroma(AVCodecContext *avctx, SliceContext *slice,
573 uint16_t *dst, int dst_stride,
574 const uint8_t *buf, unsigned buf_size,
575 const int16_t *qmat, int log2_blocks_per_mb)
576 {
577 174228 ProresContext *ctx = avctx->priv_data;
578 174228 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
579 int16_t *block;
580 GetBitContext gb;
581 174228 int i, j, blocks_per_slice = slice->mb_count << log2_blocks_per_mb;
582 int ret;
583
584
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3178740 for (i = 0; i < blocks_per_slice; i++)
585 3004512 ctx->bdsp.clear_block(blocks+(i<<6));
586
587 174228 init_get_bits(&gb, buf, buf_size << 3);
588
589
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174228 if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
590 return ret;
591
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174228 if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
592 return ret;
593
594 174228 block = blocks;
595
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1268790 for (i = 0; i < slice->mb_count; i++) {
596
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2596818 for (j = 0; j < log2_blocks_per_mb; j++) {
597 1502256 ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
598 1502256 ctx->prodsp.idct_put(dst+4*dst_stride, dst_stride, block+(1<<6), qmat);
599 1502256 block += 2*64;
600 1502256 dst += 8;
601 }
602 }
603 174228 return 0;
604 }
605
606 /**
607 * Decode alpha slice plane.
608 */
609 5100 static void decode_slice_alpha(const ProresContext *ctx,
610 uint16_t *dst, int dst_stride,
611 const uint8_t *buf, int buf_size,
612 int blocks_per_slice)
613 {
614 GetBitContext gb;
615 int i;
616 5100 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
617 int16_t *block;
618
619
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168300 for (i = 0; i < blocks_per_slice<<2; i++)
620 163200 ctx->bdsp.clear_block(blocks+(i<<6));
621
622 5100 init_get_bits(&gb, buf, buf_size << 3);
623
624
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5100 if (ctx->alpha_info == 2) {
625 5100 ctx->unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 16);
626 } else {
627 ctx->unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 8);
628 }
629
630 5100 block = blocks;
631
632
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86700 for (i = 0; i < 16; i++) {
633 81600 memcpy(dst, block, 16 * blocks_per_slice * sizeof(*dst));
634 81600 dst += dst_stride >> 1;
635 81600 block += 16 * blocks_per_slice;
636 }
637 5100 }
638
639 87870 static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
640 {
641 87870 const ProresContext *ctx = avctx->priv_data;
642 87870 SliceContext *slice = &ctx->slices[jobnr];
643 87870 const uint8_t *buf = slice->data;
644 87870 AVFrame *pic = ctx->frame;
645 int i, hdr_size, qscale, log2_chroma_blocks_per_mb;
646 int luma_stride, chroma_stride;
647 int y_data_size, u_data_size, v_data_size, a_data_size, offset;
648 uint8_t *dest_y, *dest_u, *dest_v;
649 87870 LOCAL_ALIGNED_16(int16_t, qmat_luma_scaled, [64]);
650 87870 LOCAL_ALIGNED_16(int16_t, qmat_chroma_scaled,[64]);
651 int mb_x_shift;
652 int ret;
653 uint16_t val_no_chroma;
654
655 87870 slice->ret = -1;
656 //av_log(avctx, AV_LOG_INFO, "slice %d mb width %d mb x %d y %d\n",
657 // jobnr, slice->mb_count, slice->mb_x, slice->mb_y);
658
659 // slice header
660 87870 hdr_size = buf[0] >> 3;
661 87870 qscale = av_clip(buf[1], 1, 224);
662
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87870 qscale = qscale > 128 ? qscale - 96 << 2: qscale;
663 87870 y_data_size = AV_RB16(buf + 2);
664 87870 u_data_size = AV_RB16(buf + 4);
665 87870 v_data_size = slice->data_size - y_data_size - u_data_size - hdr_size;
666
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87870 if (hdr_size > 7) v_data_size = AV_RB16(buf + 6);
667 87870 a_data_size = slice->data_size - y_data_size - u_data_size -
668 87870 v_data_size - hdr_size;
669
670
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87870 if (y_data_size < 0 || u_data_size < 0 || v_data_size < 0
671
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87870 || hdr_size+y_data_size+u_data_size+v_data_size > slice->data_size){
672 av_log(avctx, AV_LOG_ERROR, "invalid plane data size\n");
673 return AVERROR_INVALIDDATA;
674 }
675
676 87870 buf += hdr_size;
677
678
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5711550 for (i = 0; i < 64; i++) {
679 5623680 qmat_luma_scaled [i] = ctx->qmat_luma [i] * qscale;
680 5623680 qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * qscale;
681 }
682
683
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87870 if (ctx->frame_type == 0) {
684 44622 luma_stride = pic->linesize[0];
685 44622 chroma_stride = pic->linesize[1];
686 } else {
687 43248 luma_stride = pic->linesize[0] << 1;
688 43248 chroma_stride = pic->linesize[1] << 1;
689 }
690
691
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87870 if (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P10 ||
692
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87870 avctx->pix_fmt == AV_PIX_FMT_YUV444P12 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P12) {
693 32946 mb_x_shift = 5;
694 32946 log2_chroma_blocks_per_mb = 2;
695 } else {
696 54924 mb_x_shift = 4;
697 54924 log2_chroma_blocks_per_mb = 1;
698 }
699
700 87870 offset = (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
701 87870 dest_y = pic->data[0] + offset;
702 87870 dest_u = pic->data[1] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
703 87870 dest_v = pic->data[2] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
704
705
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87870 if (ctx->frame_type && ctx->first_field ^ !!(ctx->frame->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST)) {
706 21624 dest_y += pic->linesize[0];
707 21624 dest_u += pic->linesize[1];
708 21624 dest_v += pic->linesize[2];
709 21624 offset += pic->linesize[3];
710 }
711
712 87870 ret = decode_slice_luma(avctx, slice, (uint16_t*)dest_y, luma_stride,
713 buf, y_data_size, qmat_luma_scaled);
714
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87870 if (ret < 0)
715 return ret;
716
717
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87870 if (!(avctx->flags & AV_CODEC_FLAG_GRAY) && (u_data_size + v_data_size) > 0) {
718 87114 ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_u, chroma_stride,
719 buf + y_data_size, u_data_size,
720 qmat_chroma_scaled, log2_chroma_blocks_per_mb);
721
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87114 if (ret < 0)
722 return ret;
723
724 87114 ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_v, chroma_stride,
725 87114 buf + y_data_size + u_data_size, v_data_size,
726 qmat_chroma_scaled, log2_chroma_blocks_per_mb);
727
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87114 if (ret < 0)
728 return ret;
729 }
730 else {
731 756 size_t mb_max_x = slice->mb_count << (mb_x_shift - 1);
732 size_t i, j;
733
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756 if (avctx->bits_per_raw_sample == 10) {
734 756 val_no_chroma = 511;
735 } else { /* 12b */
736 val_no_chroma = 511 * 4;
737 }
738
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12852 for (i = 0; i < 16; ++i)
739
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634176 for (j = 0; j < mb_max_x; ++j) {
740 622080 *(uint16_t*)(dest_u + (i * chroma_stride) + (j << 1)) = val_no_chroma;
741 622080 *(uint16_t*)(dest_v + (i * chroma_stride) + (j << 1)) = val_no_chroma;
742 }
743 }
744
745 /* decode alpha plane if available */
746
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87870 if (ctx->alpha_info && pic->data[3] && a_data_size) {
747 5100 uint8_t *dest_a = pic->data[3] + offset;
748 5100 decode_slice_alpha(ctx, (uint16_t*)dest_a, luma_stride,
749 5100 buf + y_data_size + u_data_size + v_data_size,
750 5100 a_data_size, slice->mb_count);
751 }
752
753 87870 slice->ret = 0;
754 87870 return 0;
755 }
756
757 1489 static int decode_picture(AVCodecContext *avctx)
758 {
759 1489 ProresContext *ctx = avctx->priv_data;
760 int i;
761 1489 int error = 0;
762
763 1489 avctx->execute2(avctx, decode_slice_thread, NULL, NULL, ctx->slice_count);
764
765
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89359 for (i = 0; i < ctx->slice_count; i++)
766 87870 error += ctx->slices[i].ret < 0;
767
768
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1489 if (error)
769 ctx->frame->decode_error_flags = FF_DECODE_ERROR_INVALID_BITSTREAM;
770
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1489 if (error < ctx->slice_count)
771 1489 return 0;
772
773 return ctx->slices[0].ret;
774 }
775
776 1061 static int decode_frame(AVCodecContext *avctx, AVFrame *frame,
777 int *got_frame, AVPacket *avpkt)
778 {
779 1061 ProresContext *ctx = avctx->priv_data;
780 1061 const uint8_t *buf = avpkt->data;
781 1061 int buf_size = avpkt->size;
782 int frame_hdr_size, pic_size, ret;
783
784
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1061 if (buf_size < 28 || AV_RL32(buf + 4) != AV_RL32("icpf")) {
785 av_log(avctx, AV_LOG_ERROR, "invalid frame header\n");
786 return AVERROR_INVALIDDATA;
787 }
788
789 1061 ctx->frame = frame;
790 1061 ctx->first_field = 1;
791
792 1061 buf += 8;
793 1061 buf_size -= 8;
794
795 1061 frame_hdr_size = decode_frame_header(ctx, buf, buf_size, avctx);
796
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1061 if (frame_hdr_size < 0)
797 return frame_hdr_size;
798
799 1061 buf += frame_hdr_size;
800 1061 buf_size -= frame_hdr_size;
801
802
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1061 if ((ret = ff_thread_get_buffer(avctx, frame, 0)) < 0)
803 return ret;
804 1061 ff_thread_finish_setup(avctx);
805
806
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1061 if (avctx->hwaccel) {
807 const FFHWAccel *hwaccel = ffhwaccel(avctx->hwaccel);
808 ret = hwaccel->start_frame(avctx, NULL, 0);
809 if (ret < 0)
810 return ret;
811 ret = hwaccel->decode_slice(avctx, avpkt->data, avpkt->size);
812 if (ret < 0)
813 return ret;
814 ret = hwaccel->end_frame(avctx);
815 if (ret < 0)
816 return ret;
817 goto finish;
818 }
819
820 1061 decode_picture:
821 1489 pic_size = decode_picture_header(avctx, buf, buf_size);
822
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1489 if (pic_size < 0) {
823 av_log(avctx, AV_LOG_ERROR, "error decoding picture header\n");
824 return pic_size;
825 }
826
827
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1489 if ((ret = decode_picture(avctx)) < 0) {
828 av_log(avctx, AV_LOG_ERROR, "error decoding picture\n");
829 return ret;
830 }
831
832 1489 buf += pic_size;
833 1489 buf_size -= pic_size;
834
835
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1489 if (ctx->frame_type && buf_size > 0 && ctx->first_field) {
836 428 ctx->first_field = 0;
837 428 goto decode_picture;
838 }
839
840 1061 finish:
841 1061 *got_frame = 1;
842
843 1061 return avpkt->size;
844 }
845
846 73 static av_cold int decode_close(AVCodecContext *avctx)
847 {
848 73 ProresContext *ctx = avctx->priv_data;
849
850 73 av_freep(&ctx->slices);
851
852 73 return 0;
853 }
854
855 #if HAVE_THREADS
856 static int update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
857 {
858 ProresContext *csrc = src->priv_data;
859 ProresContext *cdst = dst->priv_data;
860
861 cdst->pix_fmt = csrc->pix_fmt;
862
863 return 0;
864 }
865 #endif
866
867 const FFCodec ff_prores_decoder = {
868 .p.name = "prores",
869 CODEC_LONG_NAME("Apple ProRes (iCodec Pro)"),
870 .p.type = AVMEDIA_TYPE_VIDEO,
871 .p.id = AV_CODEC_ID_PRORES,
872 .priv_data_size = sizeof(ProresContext),
873 .init = decode_init,
874 .close = decode_close,
875 FF_CODEC_DECODE_CB(decode_frame),
876 UPDATE_THREAD_CONTEXT(update_thread_context),
877 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS,
878 .p.profiles = NULL_IF_CONFIG_SMALL(ff_prores_profiles),
879 .hw_configs = (const AVCodecHWConfigInternal *const []) {
880 #if CONFIG_PRORES_VIDEOTOOLBOX_HWACCEL
881 HWACCEL_VIDEOTOOLBOX(prores),
882 #endif
883 NULL
884 },
885 };
886