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path: root/drivers/amvdec_ports/decoder/aml_hevc_parser.c (plain)
blob: 33d44f1c2997bcd5f4338bf3efbd27b6320f912f
1#include <linux/kernel.h>
2#include <linux/types.h>
3#include <linux/vmalloc.h>
4#include <linux/mm.h>
5#include <linux/string.h>
6
7#include "aml_hevc_parser.h"
8#include "../utils/get_bits.h"
9#include "../utils/put_bits.h"
10#include "../utils/golomb.h"
11#include "../utils/common.h"
12#include "utils.h"
13
14const u8 ff_hevc_diag_scan4x4_x[16] = {
15 0, 0, 1, 0,
16 1, 2, 0, 1,
17 2, 3, 1, 2,
18 3, 2, 3, 3,
19};
20
21const u8 ff_hevc_diag_scan4x4_y[16] = {
22 0, 1, 0, 2,
23 1, 0, 3, 2,
24 1, 0, 3, 2,
25 1, 3, 2, 3,
26};
27
28const u8 ff_hevc_diag_scan8x8_x[64] = {
29 0, 0, 1, 0,
30 1, 2, 0, 1,
31 2, 3, 0, 1,
32 2, 3, 4, 0,
33 1, 2, 3, 4,
34 5, 0, 1, 2,
35 3, 4, 5, 6,
36 0, 1, 2, 3,
37 4, 5, 6, 7,
38 1, 2, 3, 4,
39 5, 6, 7, 2,
40 3, 4, 5, 6,
41 7, 3, 4, 5,
42 6, 7, 4, 5,
43 6, 7, 5, 6,
44 7, 6, 7, 7,
45};
46
47const u8 ff_hevc_diag_scan8x8_y[64] = {
48 0, 1, 0, 2,
49 1, 0, 3, 2,
50 1, 0, 4, 3,
51 2, 1, 0, 5,
52 4, 3, 2, 1,
53 0, 6, 5, 4,
54 3, 2, 1, 0,
55 7, 6, 5, 4,
56 3, 2, 1, 0,
57 7, 6, 5, 4,
58 3, 2, 1, 7,
59 6, 5, 4, 3,
60 2, 7, 6, 5,
61 4, 3, 7, 6,
62 5, 4, 7, 6,
63 5, 7, 6, 7,
64};
65
66static const u8 default_scaling_list_intra[] = {
67 16, 16, 16, 16, 17, 18, 21, 24,
68 16, 16, 16, 16, 17, 19, 22, 25,
69 16, 16, 17, 18, 20, 22, 25, 29,
70 16, 16, 18, 21, 24, 27, 31, 36,
71 17, 17, 20, 24, 30, 35, 41, 47,
72 18, 19, 22, 27, 35, 44, 54, 65,
73 21, 22, 25, 31, 41, 54, 70, 88,
74 24, 25, 29, 36, 47, 65, 88, 115
75};
76
77static const u8 default_scaling_list_inter[] = {
78 16, 16, 16, 16, 17, 18, 20, 24,
79 16, 16, 16, 17, 18, 20, 24, 25,
80 16, 16, 17, 18, 20, 24, 25, 28,
81 16, 17, 18, 20, 24, 25, 28, 33,
82 17, 18, 20, 24, 25, 28, 33, 41,
83 18, 20, 24, 25, 28, 33, 41, 54,
84 20, 24, 25, 28, 33, 41, 54, 71,
85 24, 25, 28, 33, 41, 54, 71, 91
86};
87
88static const struct AVRational vui_sar[] = {
89 { 0, 1 },
90 { 1, 1 },
91 { 12, 11 },
92 { 10, 11 },
93 { 16, 11 },
94 { 40, 33 },
95 { 24, 11 },
96 { 20, 11 },
97 { 32, 11 },
98 { 80, 33 },
99 { 18, 11 },
100 { 15, 11 },
101 { 64, 33 },
102 { 160, 99 },
103 { 4, 3 },
104 { 3, 2 },
105 { 2, 1 },
106};
107
108static const u8 hevc_sub_width_c[] = {
109 1, 2, 2, 1
110};
111
112static const u8 hevc_sub_height_c[] = {
113 1, 2, 1, 1
114};
115
116static int decode_profile_tier_level(struct get_bits_context *gb, struct PTLCommon *ptl)
117{
118 int i;
119
120 if (get_bits_left(gb) < 2+1+5 + 32 + 4 + 16 + 16 + 12)
121 return -1;
122
123 ptl->profile_space = get_bits(gb, 2);
124 ptl->tier_flag = get_bits1(gb);
125 ptl->profile_idc = get_bits(gb, 5);
126 if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
127 pr_info("Main profile bitstream\n");
128 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
129 pr_info("Main 10 profile bitstream\n");
130 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
131 pr_info("Main Still Picture profile bitstream\n");
132 else if (ptl->profile_idc == FF_PROFILE_HEVC_REXT)
133 pr_info("Range Extension profile bitstream\n");
134 else
135 pr_info("Unknown HEVC profile: %d\n", ptl->profile_idc);
136
137 for (i = 0; i < 32; i++) {
138 ptl->profile_compatibility_flag[i] = get_bits1(gb);
139
140 if (ptl->profile_idc == 0 && i > 0 && ptl->profile_compatibility_flag[i])
141 ptl->profile_idc = i;
142 }
143 ptl->progressive_source_flag = get_bits1(gb);
144 ptl->interlaced_source_flag = get_bits1(gb);
145 ptl->non_packed_constraint_flag = get_bits1(gb);
146 ptl->frame_only_constraint_flag = get_bits1(gb);
147
148 skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15]
149 skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31]
150 skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43]
151
152 return 0;
153}
154
155static int parse_ptl(struct get_bits_context *gb, struct PTL *ptl, int max_num_sub_layers)
156{
157 int i;
158 if (decode_profile_tier_level(gb, &ptl->general_ptl) < 0 ||
159 get_bits_left(gb) < 8 + (8*2 * (max_num_sub_layers - 1 > 0))) {
160 pr_err("PTL information too short\n");
161 return -1;
162 }
163
164 ptl->general_ptl.level_idc = get_bits(gb, 8);
165
166 for (i = 0; i < max_num_sub_layers - 1; i++) {
167 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
168 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
169 }
170
171 if (max_num_sub_layers - 1> 0)
172 for (i = max_num_sub_layers - 1; i < 8; i++)
173 skip_bits(gb, 2); // reserved_zero_2bits[i]
174 for (i = 0; i < max_num_sub_layers - 1; i++) {
175 if (ptl->sub_layer_profile_present_flag[i] &&
176 decode_profile_tier_level(gb, &ptl->sub_layer_ptl[i]) < 0) {
177 pr_err("PTL information for sublayer %i too short\n", i);
178 return -1;
179 }
180 if (ptl->sub_layer_level_present_flag[i]) {
181 if (get_bits_left(gb) < 8) {
182 pr_err("Not enough data for sublayer %i level_idc\n", i);
183 return -1;
184 } else
185 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
186 }
187 }
188
189 return 0;
190}
191
192static void decode_sublayer_hrd(struct get_bits_context *gb,
193 u32 nb_cpb, int subpic_params_present)
194{
195 int i;
196
197 for (i = 0; i < nb_cpb; i++) {
198 get_ue_golomb_long(gb); // bit_rate_value_minus1
199 get_ue_golomb_long(gb); // cpb_size_value_minus1
200
201 if (subpic_params_present) {
202 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
203 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
204 }
205 skip_bits1(gb); // cbr_flag
206 }
207}
208
209static int decode_hrd(struct get_bits_context *gb,
210 int common_inf_present, int max_sublayers)
211{
212 int nal_params_present = 0, vcl_params_present = 0;
213 int subpic_params_present = 0;
214 int i;
215
216 if (common_inf_present) {
217 nal_params_present = get_bits1(gb);
218 vcl_params_present = get_bits1(gb);
219
220 if (nal_params_present || vcl_params_present) {
221 subpic_params_present = get_bits1(gb);
222
223 if (subpic_params_present) {
224 skip_bits(gb, 8); // tick_divisor_minus2
225 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
226 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
227 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
228 }
229
230 skip_bits(gb, 4); // bit_rate_scale
231 skip_bits(gb, 4); // cpb_size_scale
232
233 if (subpic_params_present)
234 skip_bits(gb, 4); // cpb_size_du_scale
235
236 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
237 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
238 skip_bits(gb, 5); // dpb_output_delay_length_minus1
239 }
240 }
241
242 for (i = 0; i < max_sublayers; i++) {
243 int low_delay = 0;
244 u32 nb_cpb = 1;
245 int fixed_rate = get_bits1(gb);
246
247 if (!fixed_rate)
248 fixed_rate = get_bits1(gb);
249
250 if (fixed_rate)
251 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
252 else
253 low_delay = get_bits1(gb);
254
255 if (!low_delay) {
256 nb_cpb = get_ue_golomb_long(gb) + 1;
257 if (nb_cpb < 1 || nb_cpb > 32) {
258 pr_err("nb_cpb %d invalid\n", nb_cpb);
259 return -1;
260 }
261 }
262
263 if (nal_params_present)
264 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
265 if (vcl_params_present)
266 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
267 }
268 return 0;
269}
270
271int ff_hevc_parse_vps(struct get_bits_context *gb, struct h265_VPS_t *vps)
272{
273 int i,j;
274 int vps_id = 0;
275
276 pr_info("Decoding VPS\n");
277
278 vps_id = get_bits(gb, 4);
279 if (vps_id >= HEVC_MAX_VPS_COUNT) {
280 pr_err("VPS id out of range: %d\n", vps_id);
281 goto err;
282 }
283
284 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
285 pr_err("vps_reserved_three_2bits is not three\n");
286 goto err;
287 }
288
289 vps->vps_max_layers = get_bits(gb, 6) + 1;
290 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
291 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
292
293 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
294 pr_err("vps_reserved_ffff_16bits is not 0xffff\n");
295 goto err;
296 }
297
298 if (vps->vps_max_sub_layers > HEVC_MAX_SUB_LAYERS) {
299 pr_err("vps_max_sub_layers out of range: %d\n",
300 vps->vps_max_sub_layers);
301 goto err;
302 }
303
304 if (parse_ptl(gb, &vps->ptl, vps->vps_max_sub_layers) < 0)
305 goto err;
306
307 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
308
309 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
310 for (; i < vps->vps_max_sub_layers; i++) {
311 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
312 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
313 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
314
315 if (vps->vps_max_dec_pic_buffering[i] > HEVC_MAX_DPB_SIZE || !vps->vps_max_dec_pic_buffering[i]) {
316 pr_err("vps_max_dec_pic_buffering_minus1 out of range: %d\n",
317 vps->vps_max_dec_pic_buffering[i] - 1);
318 goto err;
319 }
320 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
321 pr_err("vps_max_num_reorder_pics out of range: %d\n",
322 vps->vps_num_reorder_pics[i]);
323 goto err;
324 }
325 }
326
327 vps->vps_max_layer_id = get_bits(gb, 6);
328 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
329 if (vps->vps_num_layer_sets < 1 || vps->vps_num_layer_sets > 1024 ||
330 (vps->vps_num_layer_sets - 1LL) * (vps->vps_max_layer_id + 1LL) > get_bits_left(gb)) {
331 pr_err("too many layer_id_included_flags\n");
332 goto err;
333 }
334
335 for (i = 1; i < vps->vps_num_layer_sets; i++)
336 for (j = 0; j <= vps->vps_max_layer_id; j++)
337 skip_bits(gb, 1); // layer_id_included_flag[i][j]
338
339 vps->vps_timing_info_present_flag = get_bits1(gb);
340 if (vps->vps_timing_info_present_flag) {
341 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
342 vps->vps_time_scale = get_bits_long(gb, 32);
343 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
344 if (vps->vps_poc_proportional_to_timing_flag)
345 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
346 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
347 if (vps->vps_num_hrd_parameters > (u32)vps->vps_num_layer_sets) {
348 pr_err("vps_num_hrd_parameters %d is invalid\n", vps->vps_num_hrd_parameters);
349 goto err;
350 }
351 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
352 int common_inf_present = 1;
353
354 get_ue_golomb_long(gb); // hrd_layer_set_idx
355 if (i)
356 common_inf_present = get_bits1(gb);
357 decode_hrd(gb, common_inf_present, vps->vps_max_sub_layers);
358 }
359 }
360 get_bits1(gb); /* vps_extension_flag */
361
362 if (get_bits_left(gb) < 0) {
363 pr_err("Overread VPS by %d bits\n", -get_bits_left(gb));
364 goto err;
365 }
366
367 return 0;
368err:
369 return -1;
370}
371
372static int map_pixel_format(struct h265_SPS_t *sps)
373{
374 /*const AVPixFmtDescriptor *desc;*/
375 switch (sps->bit_depth) {
376 case 8:
377 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY8;
378 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P;
379 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P;
380 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P;
381 break;
382 case 9:
383 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY9;
384 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9;
385 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9;
386 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9;
387 break;
388 case 10:
389 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY10;
390 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10;
391 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10;
392 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10;
393 break;
394 case 12:
395 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY12;
396 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12;
397 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12;
398 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12;
399 break;
400 default:
401 pr_info("The following bit-depths are currently specified: 8, 9, 10 and 12 bits, "
402 "chroma_format_idc is %d, depth is %d\n",
403 sps->chroma_format_idc, sps->bit_depth);
404 return -1;
405 }
406
407 /*desc = av_pix_fmt_desc_get(sps->pix_fmt);
408 if (!desc)
409 return AVERROR(EINVAL);
410
411 sps->hshift[0] = sps->vshift[0] = 0;
412 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
413 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;*/
414
415 sps->pixel_shift = sps->bit_depth > 8;
416
417 return 0;
418}
419
420static void set_default_scaling_list_data(struct ScalingList *sl)
421{
422 int matrixId;
423
424 for (matrixId = 0; matrixId < 6; matrixId++) {
425 // 4x4 default is 16
426 memset(sl->sl[0][matrixId], 16, 16);
427 sl->sl_dc[0][matrixId] = 16; // default for 16x16
428 sl->sl_dc[1][matrixId] = 16; // default for 32x32
429 }
430 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
431 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
432 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
433 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
434 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
435 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
436 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
437 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
438 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
439 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
440 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
441 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
442 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
443 memcpy(sl->sl[3][1], default_scaling_list_intra, 64);
444 memcpy(sl->sl[3][2], default_scaling_list_intra, 64);
445 memcpy(sl->sl[3][3], default_scaling_list_inter, 64);
446 memcpy(sl->sl[3][4], default_scaling_list_inter, 64);
447 memcpy(sl->sl[3][5], default_scaling_list_inter, 64);
448}
449
450static int scaling_list_data(struct get_bits_context *gb,
451 struct ScalingList *sl, struct h265_SPS_t *sps)
452{
453 u8 scaling_list_pred_mode_flag;
454 int scaling_list_dc_coef[2][6];
455 int size_id, matrix_id, pos;
456 int i;
457
458 for (size_id = 0; size_id < 4; size_id++)
459 for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) {
460 scaling_list_pred_mode_flag = get_bits1(gb);
461 if (!scaling_list_pred_mode_flag) {
462 u32 delta = get_ue_golomb_long(gb);
463 /* Only need to handle non-zero delta. Zero means default,
464 * which should already be in the arrays. */
465 if (delta) {
466 // Copy from previous array.
467 delta *= (size_id == 3) ? 3 : 1;
468 if (matrix_id < delta) {
469 pr_err("Invalid delta in scaling list data: %d.\n", delta);
470 return -1;
471 }
472
473 memcpy(sl->sl[size_id][matrix_id],
474 sl->sl[size_id][matrix_id - delta],
475 size_id > 0 ? 64 : 16);
476 if (size_id > 1)
477 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
478 }
479 } else {
480 int next_coef, coef_num;
481 int scaling_list_delta_coef;
482
483 next_coef = 8;
484 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
485 if (size_id > 1) {
486 scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
487 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
488 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
489 }
490 for (i = 0; i < coef_num; i++) {
491 if (size_id == 0)
492 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
493 ff_hevc_diag_scan4x4_x[i];
494 else
495 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
496 ff_hevc_diag_scan8x8_x[i];
497
498 scaling_list_delta_coef = get_se_golomb(gb);
499 next_coef = (next_coef + 256U + scaling_list_delta_coef) % 256;
500 sl->sl[size_id][matrix_id][pos] = next_coef;
501 }
502 }
503 }
504
505 if (sps->chroma_format_idc == 3) {
506 for (i = 0; i < 64; i++) {
507 sl->sl[3][1][i] = sl->sl[2][1][i];
508 sl->sl[3][2][i] = sl->sl[2][2][i];
509 sl->sl[3][4][i] = sl->sl[2][4][i];
510 sl->sl[3][5][i] = sl->sl[2][5][i];
511 }
512 sl->sl_dc[1][1] = sl->sl_dc[0][1];
513 sl->sl_dc[1][2] = sl->sl_dc[0][2];
514 sl->sl_dc[1][4] = sl->sl_dc[0][4];
515 sl->sl_dc[1][5] = sl->sl_dc[0][5];
516 }
517
518 return 0;
519}
520
521int ff_hevc_decode_short_term_rps(struct get_bits_context *gb,
522 struct ShortTermRPS *rps, const struct h265_SPS_t *sps, int is_slice_header)
523{
524 u8 rps_predict = 0;
525 int delta_poc;
526 int k0 = 0;
527 int k1 = 0;
528 int k = 0;
529 int i;
530
531 if (rps != sps->st_rps && sps->nb_st_rps)
532 rps_predict = get_bits1(gb);
533
534 if (rps_predict) {
535 const struct ShortTermRPS *rps_ridx;
536 int delta_rps;
537 u32 abs_delta_rps;
538 u8 use_delta_flag = 0;
539 u8 delta_rps_sign;
540
541 if (is_slice_header) {
542 u32 delta_idx = get_ue_golomb_long(gb) + 1;
543 if (delta_idx > sps->nb_st_rps) {
544 pr_err("Invalid value of delta_idx in slice header RPS: %d > %d.\n",
545 delta_idx, sps->nb_st_rps);
546 return -1;
547 }
548 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
549 rps->rps_idx_num_delta_pocs = rps_ridx->num_delta_pocs;
550 } else
551 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
552
553 delta_rps_sign = get_bits1(gb);
554 abs_delta_rps = get_ue_golomb_long(gb) + 1;
555 if (abs_delta_rps < 1 || abs_delta_rps > 32768) {
556 pr_err("Invalid value of abs_delta_rps: %d\n",
557 abs_delta_rps);
558 return -1;
559 }
560 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
561 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
562 int used = rps->used[k] = get_bits1(gb);
563
564 if (!used)
565 use_delta_flag = get_bits1(gb);
566
567 if (used || use_delta_flag) {
568 if (i < rps_ridx->num_delta_pocs)
569 delta_poc = delta_rps + rps_ridx->delta_poc[i];
570 else
571 delta_poc = delta_rps;
572 rps->delta_poc[k] = delta_poc;
573 if (delta_poc < 0)
574 k0++;
575 else
576 k1++;
577 k++;
578 }
579 }
580
581 if (k >= ARRAY_SIZE(rps->used)) {
582 pr_err( "Invalid num_delta_pocs: %d\n", k);
583 return -1;
584 }
585
586 rps->num_delta_pocs = k;
587 rps->num_negative_pics = k0;
588 // sort in increasing order (smallest first)
589 if (rps->num_delta_pocs != 0) {
590 int used, tmp;
591 for (i = 1; i < rps->num_delta_pocs; i++) {
592 delta_poc = rps->delta_poc[i];
593 used = rps->used[i];
594 for (k = i - 1; k >= 0; k--) {
595 tmp = rps->delta_poc[k];
596 if (delta_poc < tmp) {
597 rps->delta_poc[k + 1] = tmp;
598 rps->used[k + 1] = rps->used[k];
599 rps->delta_poc[k] = delta_poc;
600 rps->used[k] = used;
601 }
602 }
603 }
604 }
605 if ((rps->num_negative_pics >> 1) != 0) {
606 int used;
607 k = rps->num_negative_pics - 1;
608 // flip the negative values to largest first
609 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
610 delta_poc = rps->delta_poc[i];
611 used = rps->used[i];
612 rps->delta_poc[i] = rps->delta_poc[k];
613 rps->used[i] = rps->used[k];
614 rps->delta_poc[k] = delta_poc;
615 rps->used[k] = used;
616 k--;
617 }
618 }
619 } else {
620 u32 prev, nb_positive_pics;
621 rps->num_negative_pics = get_ue_golomb_long(gb);
622 nb_positive_pics = get_ue_golomb_long(gb);
623
624 if (rps->num_negative_pics >= HEVC_MAX_REFS ||
625 nb_positive_pics >= HEVC_MAX_REFS) {
626 pr_err("Too many refs in a short term RPS.\n");
627 return -1;
628 }
629
630 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
631 if (rps->num_delta_pocs) {
632 prev = 0;
633 for (i = 0; i < rps->num_negative_pics; i++) {
634 delta_poc = get_ue_golomb_long(gb) + 1;
635 if (delta_poc < 1 || delta_poc > 32768) {
636 pr_err("Invalid value of delta_poc: %d\n",
637 delta_poc);
638 return -1;
639 }
640 prev -= delta_poc;
641 rps->delta_poc[i] = prev;
642 rps->used[i] = get_bits1(gb);
643 }
644 prev = 0;
645 for (i = 0; i < nb_positive_pics; i++) {
646 delta_poc = get_ue_golomb_long(gb) + 1;
647 if (delta_poc < 1 || delta_poc > 32768) {
648 pr_err("Invalid value of delta_poc: %d\n",
649 delta_poc);
650 return -1;
651 }
652 prev += delta_poc;
653 rps->delta_poc[rps->num_negative_pics + i] = prev;
654 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
655 }
656 }
657 }
658 return 0;
659}
660
661static void decode_vui(struct get_bits_context *gb, struct h265_SPS_t *sps)
662{
663 struct VUI backup_vui, *vui = &sps->vui;
664 struct get_bits_context backup;
665 int sar_present, alt = 0;
666
667 pr_info("Decoding VUI\n");
668
669 sar_present = get_bits1(gb);
670 if (sar_present) {
671 u8 sar_idx = get_bits(gb, 8);
672 if (sar_idx < ARRAY_SIZE(vui_sar))
673 vui->sar = vui_sar[sar_idx];
674 else if (sar_idx == 255) {
675 vui->sar.num = get_bits(gb, 16);
676 vui->sar.den = get_bits(gb, 16);
677 } else
678 pr_info("Unknown SAR index: %u.\n", sar_idx);
679 }
680
681 vui->overscan_info_present_flag = get_bits1(gb);
682 if (vui->overscan_info_present_flag)
683 vui->overscan_appropriate_flag = get_bits1(gb);
684
685 vui->video_signal_type_present_flag = get_bits1(gb);
686 if (vui->video_signal_type_present_flag) {
687 vui->video_format = get_bits(gb, 3);
688 vui->video_full_range_flag = get_bits1(gb);
689 vui->colour_description_present_flag = get_bits1(gb);
690 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
691 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
692 if (vui->colour_description_present_flag) {
693 vui->colour_primaries = get_bits(gb, 8);
694 vui->transfer_characteristic = get_bits(gb, 8);
695 vui->matrix_coeffs = get_bits(gb, 8);
696
697 // Set invalid values to "unspecified"
698 if (!av_color_primaries_name(vui->colour_primaries))
699 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
700 if (!av_color_transfer_name(vui->transfer_characteristic))
701 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
702 if (!av_color_space_name(vui->matrix_coeffs))
703 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
704 if (vui->matrix_coeffs == AVCOL_SPC_RGB) {
705 switch (sps->pix_fmt) {
706 case AV_PIX_FMT_YUV444P:
707 sps->pix_fmt = AV_PIX_FMT_GBRP;
708 break;
709 case AV_PIX_FMT_YUV444P10:
710 sps->pix_fmt = AV_PIX_FMT_GBRP10;
711 break;
712 case AV_PIX_FMT_YUV444P12:
713 sps->pix_fmt = AV_PIX_FMT_GBRP12;
714 break;
715 }
716 }
717 }
718 }
719
720 vui->chroma_loc_info_present_flag = get_bits1(gb);
721 if (vui->chroma_loc_info_present_flag) {
722 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
723 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
724 }
725
726 vui->neutra_chroma_indication_flag = get_bits1(gb);
727 vui->field_seq_flag = get_bits1(gb);
728 vui->frame_field_info_present_flag = get_bits1(gb);
729
730 // Backup context in case an alternate header is detected
731 memcpy(&backup, gb, sizeof(backup));
732 memcpy(&backup_vui, vui, sizeof(backup_vui));
733 if (get_bits_left(gb) >= 68 && show_bits_long(gb, 21) == 0x100000) {
734 vui->default_display_window_flag = 0;
735 pr_info("Invalid default display window\n");
736 } else
737 vui->default_display_window_flag = get_bits1(gb);
738
739 if (vui->default_display_window_flag) {
740 int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
741 int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
742 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
743 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
744 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
745 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
746 }
747
748timing_info:
749 vui->vui_timing_info_present_flag = get_bits1(gb);
750
751 if (vui->vui_timing_info_present_flag) {
752 if (get_bits_left(gb) < 66 && !alt) {
753 // The alternate syntax seem to have timing info located
754 // at where def_disp_win is normally located
755 pr_info("Strange VUI timing information, retrying...\n");
756 memcpy(vui, &backup_vui, sizeof(backup_vui));
757 memcpy(gb, &backup, sizeof(backup));
758 alt = 1;
759 goto timing_info;
760 }
761 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
762 vui->vui_time_scale = get_bits_long(gb, 32);
763 if (alt) {
764 pr_info("Retry got %u/%u fps\n",
765 vui->vui_time_scale, vui->vui_num_units_in_tick);
766 }
767 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
768 if (vui->vui_poc_proportional_to_timing_flag)
769 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
770 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
771 if (vui->vui_hrd_parameters_present_flag)
772 decode_hrd(gb, 1, sps->max_sub_layers);
773 }
774
775 vui->bitstream_restriction_flag = get_bits1(gb);
776 if (vui->bitstream_restriction_flag) {
777 if (get_bits_left(gb) < 8 && !alt) {
778 pr_info("Strange VUI bitstream restriction information, retrying"
779 " from timing information...\n");
780 memcpy(vui, &backup_vui, sizeof(backup_vui));
781 memcpy(gb, &backup, sizeof(backup));
782 alt = 1;
783 goto timing_info;
784 }
785 vui->tiles_fixed_structure_flag = get_bits1(gb);
786 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
787 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
788 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
789 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
790 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
791 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
792 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
793 }
794
795 if (get_bits_left(gb) < 1 && !alt) {
796 // XXX: Alternate syntax when sps_range_extension_flag != 0?
797 pr_info("Overread in VUI, retrying from timing information...\n");
798 memcpy(vui, &backup_vui, sizeof(backup_vui));
799 memcpy(gb, &backup, sizeof(backup));
800 alt = 1;
801 goto timing_info;
802 }
803}
804
805int ff_hevc_parse_sps(struct get_bits_context *gb, struct h265_SPS_t *sps)
806{
807 int i, ret = 0;
808 int log2_diff_max_min_transform_block_size;
809 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
810 struct HEVCWindow *ow;
811
812 sps->vps_id = get_bits(gb, 4);
813 if (sps->vps_id >= HEVC_MAX_VPS_COUNT) {
814 pr_err("VPS id out of range: %d\n", sps->vps_id);
815 return -1;
816 }
817
818 sps->max_sub_layers = get_bits(gb, 3) + 1;
819 if (sps->max_sub_layers > HEVC_MAX_SUB_LAYERS) {
820 pr_err("sps_max_sub_layers out of range: %d\n",
821 sps->max_sub_layers);
822 return -1;
823 }
824
825 sps->temporal_id_nesting_flag = get_bits(gb, 1);
826
827 if ((ret = parse_ptl(gb, &sps->ptl, sps->max_sub_layers)) < 0)
828 return ret;
829
830 sps->sps_id = get_ue_golomb_long(gb);
831 if (sps->sps_id >= HEVC_MAX_SPS_COUNT) {
832 pr_err("SPS id out of range: %d\n", sps->sps_id);
833 return -1;
834 }
835
836 sps->chroma_format_idc = get_ue_golomb_long(gb);
837 if (sps->chroma_format_idc > 3U) {
838 pr_err("chroma_format_idc %d is invalid\n", sps->chroma_format_idc);
839 return -1;
840 }
841
842 if (sps->chroma_format_idc == 3)
843 sps->separate_colour_plane_flag = get_bits1(gb);
844
845 if (sps->separate_colour_plane_flag)
846 sps->chroma_format_idc = 0;
847
848 sps->width = get_ue_golomb_long(gb);
849 sps->height = get_ue_golomb_long(gb);
850 if (sps->width > 8192 || sps->height > 8192) {
851 pr_err("width or height oversize.\n");
852 return -1;
853 }
854
855 if (get_bits1(gb)) { // pic_conformance_flag
856 int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
857 int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
858 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
859 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
860 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
861 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
862 sps->output_window = sps->pic_conf_win;
863 }
864
865 sps->bit_depth = get_ue_golomb_long(gb) + 8;
866 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
867 if (sps->chroma_format_idc && bit_depth_chroma != sps->bit_depth) {
868 pr_err("Luma bit depth (%d) is different from chroma bit depth (%d), this is unsupported.\n",
869 sps->bit_depth, bit_depth_chroma);
870 return -1;
871 }
872 sps->bit_depth_chroma = bit_depth_chroma;
873
874 ret = map_pixel_format(sps);
875 if (ret < 0)
876 return ret;
877
878 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
879 if (sps->log2_max_poc_lsb > 16) {
880 pr_err("log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
881 sps->log2_max_poc_lsb - 4);
882 return -1;
883 }
884
885 sublayer_ordering_info = get_bits1(gb);
886 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
887 for (i = start; i < sps->max_sub_layers; i++) {
888 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
889 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
890 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
891 if (sps->temporal_layer[i].max_dec_pic_buffering > (u32)HEVC_MAX_DPB_SIZE) {
892 pr_err("sps_max_dec_pic_buffering_minus1 out of range: %d\n",
893 sps->temporal_layer[i].max_dec_pic_buffering - 1U);
894 return -1;
895 }
896 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
897 pr_info("sps_max_num_reorder_pics out of range: %d\n",
898 sps->temporal_layer[i].num_reorder_pics);
899 if (sps->temporal_layer[i].num_reorder_pics > HEVC_MAX_DPB_SIZE - 1) {
900 return -1;
901 }
902 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
903 }
904 }
905
906 if (!sublayer_ordering_info) {
907 for (i = 0; i < start; i++) {
908 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
909 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
910 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
911 }
912 }
913
914 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
915 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
916 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
917 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
918 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size + sps->log2_min_tb_size;
919
920 if (sps->log2_min_cb_size < 3 || sps->log2_min_cb_size > 30) {
921 pr_err("Invalid value %d for log2_min_cb_size", sps->log2_min_cb_size);
922 return -1;
923 }
924
925 if (sps->log2_diff_max_min_coding_block_size > 30) {
926 pr_err("Invalid value %d for log2_diff_max_min_coding_block_size", sps->log2_diff_max_min_coding_block_size);
927 return -1;
928 }
929
930 if (sps->log2_min_tb_size >= sps->log2_min_cb_size || sps->log2_min_tb_size < 2) {
931 pr_err("Invalid value for log2_min_tb_size");
932 return -1;
933 }
934
935 if (log2_diff_max_min_transform_block_size < 0 || log2_diff_max_min_transform_block_size > 30) {
936 pr_err("Invalid value %d for log2_diff_max_min_transform_block_size", log2_diff_max_min_transform_block_size);
937 return -1;
938 }
939
940 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
941 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
942
943 sps->scaling_list_enable_flag = get_bits1(gb);
944 if (sps->scaling_list_enable_flag) {
945 set_default_scaling_list_data(&sps->scaling_list);
946
947 if (get_bits1(gb)) {
948 ret = scaling_list_data(gb, &sps->scaling_list, sps);
949 if (ret < 0)
950 return ret;
951 }
952 }
953
954 sps->amp_enabled_flag = get_bits1(gb);
955 sps->sao_enabled = get_bits1(gb);
956
957 sps->pcm_enabled_flag = get_bits1(gb);
958 if (sps->pcm_enabled_flag) {
959 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
960 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
961 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
962 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
963 get_ue_golomb_long(gb);
964 if (FFMAX(sps->pcm.bit_depth, sps->pcm.bit_depth_chroma) > sps->bit_depth) {
965 pr_err("PCM bit depth (%d, %d) is greater than normal bit depth (%d)\n",
966 sps->pcm.bit_depth, sps->pcm.bit_depth_chroma, sps->bit_depth);
967 return -1;
968 }
969
970 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
971 }
972
973 sps->nb_st_rps = get_ue_golomb_long(gb);
974 if (sps->nb_st_rps > HEVC_MAX_SHORT_TERM_REF_PIC_SETS) {
975 pr_err("Too many short term RPS: %d.\n", sps->nb_st_rps);
976 return -1;
977 }
978 for (i = 0; i < sps->nb_st_rps; i++) {
979 if ((ret = ff_hevc_decode_short_term_rps(gb, &sps->st_rps[i], sps, 0)) < 0)
980 return ret;
981 }
982
983 sps->long_term_ref_pics_present_flag = get_bits1(gb);
984 if (sps->long_term_ref_pics_present_flag) {
985 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
986 if (sps->num_long_term_ref_pics_sps > HEVC_MAX_LONG_TERM_REF_PICS) {
987 pr_err("Too many long term ref pics: %d.\n",
988 sps->num_long_term_ref_pics_sps);
989 return -1;
990 }
991 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
992 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
993 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
994 }
995 }
996
997 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
998 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
999 sps->vui.sar = (struct AVRational){0, 1};
1000 vui_present = get_bits1(gb);
1001 if (vui_present)
1002 decode_vui(gb, sps);
1003
1004 if (get_bits1(gb)) { // sps_extension_flag
1005 sps->sps_range_extension_flag = get_bits1(gb);
1006 skip_bits(gb, 7); //sps_extension_7bits = get_bits(gb, 7);
1007 if (sps->sps_range_extension_flag) {
1008 sps->transform_skip_rotation_enabled_flag = get_bits1(gb);
1009 sps->transform_skip_context_enabled_flag = get_bits1(gb);
1010 sps->implicit_rdpcm_enabled_flag = get_bits1(gb);
1011 sps->explicit_rdpcm_enabled_flag = get_bits1(gb);
1012 sps->extended_precision_processing_flag = get_bits1(gb);
1013 if (sps->extended_precision_processing_flag)
1014 pr_info("extended_precision_processing_flag not yet implemented\n");
1015
1016 sps->intra_smoothing_disabled_flag = get_bits1(gb);
1017 sps->high_precision_offsets_enabled_flag = get_bits1(gb);
1018 if (sps->high_precision_offsets_enabled_flag)
1019 pr_info("high_precision_offsets_enabled_flag not yet implemented\n");
1020
1021 sps->persistent_rice_adaptation_enabled_flag = get_bits1(gb);
1022 sps->cabac_bypass_alignment_enabled_flag = get_bits1(gb);
1023 if (sps->cabac_bypass_alignment_enabled_flag)
1024 pr_info("cabac_bypass_alignment_enabled_flag not yet implemented\n");
1025 }
1026 }
1027
1028 ow = &sps->output_window;
1029 if (ow->left_offset >= INT_MAX - ow->right_offset ||
1030 ow->top_offset >= INT_MAX - ow->bottom_offset ||
1031 ow->left_offset + ow->right_offset >= sps->width ||
1032 ow->top_offset + ow->bottom_offset >= sps->height) {
1033 pr_err("Invalid cropping offsets: %u/%u/%u/%u\n",
1034 ow->left_offset, ow->right_offset, ow->top_offset, ow->bottom_offset);
1035 return -1;
1036 }
1037
1038 // Inferred parameters
1039 sps->log2_ctb_size = sps->log2_min_cb_size +
1040 sps->log2_diff_max_min_coding_block_size;
1041 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
1042
1043 if (sps->log2_ctb_size > HEVC_MAX_LOG2_CTB_SIZE) {
1044 pr_err("CTB size out of range: 2^%d\n", sps->log2_ctb_size);
1045 return -1;
1046 }
1047 if (sps->log2_ctb_size < 4) {
1048 pr_err("log2_ctb_size %d differs from the bounds of any known profile\n", sps->log2_ctb_size);
1049 pr_err("log2_ctb_size %d", sps->log2_ctb_size);
1050 return -1;
1051 }
1052
1053 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1054 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1055 sps->ctb_size = sps->ctb_width * sps->ctb_height;
1056
1057 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
1058 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
1059 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
1060 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
1061 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
1062 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
1063 sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1;
1064 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
1065
1066 if (av_mod_uintp2(sps->width, sps->log2_min_cb_size) ||
1067 av_mod_uintp2(sps->height, sps->log2_min_cb_size)) {
1068 pr_err("Invalid coded frame dimensions.\n");
1069 return -1;
1070 }
1071
1072 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
1073 pr_err("max_transform_hierarchy_depth_inter out of range: %d\n",
1074 sps->max_transform_hierarchy_depth_inter);
1075 return -1;
1076 }
1077 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
1078 pr_err("max_transform_hierarchy_depth_intra out of range: %d\n",
1079 sps->max_transform_hierarchy_depth_intra);
1080 return -1;
1081 }
1082 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
1083 pr_err("max transform block size out of range: %d\n",
1084 sps->log2_max_trafo_size);
1085 return -1;
1086 }
1087
1088 if (get_bits_left(gb) < 0) {
1089 pr_err("Overread SPS by %d bits\n", -get_bits_left(gb));
1090 return -1;
1091 }
1092
1093 pr_info("Parsed SPS: id %d; ref: %d, coded wxh: %dx%d, cropped wxh: %dx%d; pix_fmt: %d.\n",
1094 sps->sps_id, sps->temporal_layer[0].num_reorder_pics, sps->width, sps->height,
1095 sps->width - (sps->output_window.left_offset + sps->output_window.right_offset),
1096 sps->height - (sps->output_window.top_offset + sps->output_window.bottom_offset),
1097 sps->pix_fmt);
1098
1099 return 0;
1100}
1101
1102const char *hevc_nal_type_name[64] = {
1103 "TRAIL_N", // HEVC_NAL_TRAIL_N
1104 "TRAIL_R", // HEVC_NAL_TRAIL_R
1105 "TSA_N", // HEVC_NAL_TSA_N
1106 "TSA_R", // HEVC_NAL_TSA_R
1107 "STSA_N", // HEVC_NAL_STSA_N
1108 "STSA_R", // HEVC_NAL_STSA_R
1109 "RADL_N", // HEVC_NAL_RADL_N
1110 "RADL_R", // HEVC_NAL_RADL_R
1111 "RASL_N", // HEVC_NAL_RASL_N
1112 "RASL_R", // HEVC_NAL_RASL_R
1113 "RSV_VCL_N10", // HEVC_NAL_VCL_N10
1114 "RSV_VCL_R11", // HEVC_NAL_VCL_R11
1115 "RSV_VCL_N12", // HEVC_NAL_VCL_N12
1116 "RSV_VLC_R13", // HEVC_NAL_VCL_R13
1117 "RSV_VCL_N14", // HEVC_NAL_VCL_N14
1118 "RSV_VCL_R15", // HEVC_NAL_VCL_R15
1119 "BLA_W_LP", // HEVC_NAL_BLA_W_LP
1120 "BLA_W_RADL", // HEVC_NAL_BLA_W_RADL
1121 "BLA_N_LP", // HEVC_NAL_BLA_N_LP
1122 "IDR_W_RADL", // HEVC_NAL_IDR_W_RADL
1123 "IDR_N_LP", // HEVC_NAL_IDR_N_LP
1124 "CRA_NUT", // HEVC_NAL_CRA_NUT
1125 "IRAP_IRAP_VCL22", // HEVC_NAL_IRAP_VCL22
1126 "IRAP_IRAP_VCL23", // HEVC_NAL_IRAP_VCL23
1127 "RSV_VCL24", // HEVC_NAL_RSV_VCL24
1128 "RSV_VCL25", // HEVC_NAL_RSV_VCL25
1129 "RSV_VCL26", // HEVC_NAL_RSV_VCL26
1130 "RSV_VCL27", // HEVC_NAL_RSV_VCL27
1131 "RSV_VCL28", // HEVC_NAL_RSV_VCL28
1132 "RSV_VCL29", // HEVC_NAL_RSV_VCL29
1133 "RSV_VCL30", // HEVC_NAL_RSV_VCL30
1134 "RSV_VCL31", // HEVC_NAL_RSV_VCL31
1135 "VPS", // HEVC_NAL_VPS
1136 "SPS", // HEVC_NAL_SPS
1137 "PPS", // HEVC_NAL_PPS
1138 "AUD", // HEVC_NAL_AUD
1139 "EOS_NUT", // HEVC_NAL_EOS_NUT
1140 "EOB_NUT", // HEVC_NAL_EOB_NUT
1141 "FD_NUT", // HEVC_NAL_FD_NUT
1142 "SEI_PREFIX", // HEVC_NAL_SEI_PREFIX
1143 "SEI_SUFFIX", // HEVC_NAL_SEI_SUFFIX
1144 "RSV_NVCL41", // HEVC_NAL_RSV_NVCL41
1145 "RSV_NVCL42", // HEVC_NAL_RSV_NVCL42
1146 "RSV_NVCL43", // HEVC_NAL_RSV_NVCL43
1147 "RSV_NVCL44", // HEVC_NAL_RSV_NVCL44
1148 "RSV_NVCL45", // HEVC_NAL_RSV_NVCL45
1149 "RSV_NVCL46", // HEVC_NAL_RSV_NVCL46
1150 "RSV_NVCL47", // HEVC_NAL_RSV_NVCL47
1151 "UNSPEC48", // HEVC_NAL_UNSPEC48
1152 "UNSPEC49", // HEVC_NAL_UNSPEC49
1153 "UNSPEC50", // HEVC_NAL_UNSPEC50
1154 "UNSPEC51", // HEVC_NAL_UNSPEC51
1155 "UNSPEC52", // HEVC_NAL_UNSPEC52
1156 "UNSPEC53", // HEVC_NAL_UNSPEC53
1157 "UNSPEC54", // HEVC_NAL_UNSPEC54
1158 "UNSPEC55", // HEVC_NAL_UNSPEC55
1159 "UNSPEC56", // HEVC_NAL_UNSPEC56
1160 "UNSPEC57", // HEVC_NAL_UNSPEC57
1161 "UNSPEC58", // HEVC_NAL_UNSPEC58
1162 "UNSPEC59", // HEVC_NAL_UNSPEC59
1163 "UNSPEC60", // HEVC_NAL_UNSPEC60
1164 "UNSPEC61", // HEVC_NAL_UNSPEC61
1165 "UNSPEC62", // HEVC_NAL_UNSPEC62
1166 "UNSPEC63", // HEVC_NAL_UNSPEC63
1167};
1168
1169static const char *hevc_nal_unit_name(int nal_type)
1170{
1171 return hevc_nal_type_name[nal_type];
1172}
1173
1174/**
1175* Parse NAL units of found picture and decode some basic information.
1176*
1177* @param s parser context.
1178* @param avctx codec context.
1179* @param buf buffer with field/frame data.
1180* @param buf_size size of the buffer.
1181*/
1182static int decode_extradata_ps(u8 *data, int size, struct h265_param_sets *ps)
1183{
1184 int ret = 0;
1185 struct get_bits_context gb;
1186 u32 src_len, rbsp_size = 0;
1187 u8 *rbsp_buf = NULL;
1188 int nalu_pos, nuh_layer_id, temporal_id;
1189 u32 nal_type;
1190 u8 *p = data;
1191 u32 len = size;
1192
1193 nalu_pos = find_start_code(p, len);
1194 if (nalu_pos < 0)
1195 return -1;
1196
1197 src_len = calc_nal_len(p + nalu_pos, size - nalu_pos);
1198 rbsp_buf = nal_unit_extract_rbsp(p + nalu_pos, src_len, &rbsp_size);
1199 if (rbsp_buf == NULL)
1200 return -ENOMEM;
1201
1202 ret = init_get_bits8(&gb, rbsp_buf, rbsp_size);
1203 if (ret < 0)
1204 goto out;
1205
1206 if (get_bits1(&gb) != 0) {
1207 pr_err("invalid data, return!\n");
1208 goto out;
1209 }
1210
1211 nal_type = get_bits(&gb, 6);
1212 nuh_layer_id = get_bits(&gb, 6);
1213 temporal_id = get_bits(&gb, 3) - 1;
1214 if (temporal_id < 0)
1215 goto out;
1216
1217 /*pr_info("nal_unit_type: %d(%s), nuh_layer_id: %d, temporal_id: %d\n",
1218 nal_type, hevc_nal_unit_name(nal_type),
1219 nuh_layer_id, temporal_id);*/
1220
1221 switch (nal_type) {
1222 case HEVC_NAL_VPS:
1223 ret = ff_hevc_parse_vps(&gb, &ps->vps);
1224 if (ret < 0)
1225 goto out;
1226 ps->vps_parsed = true;
1227 break;
1228 case HEVC_NAL_SPS:
1229 ret = ff_hevc_parse_sps(&gb, &ps->sps);
1230 if (ret < 0)
1231 goto out;
1232 ps->sps_parsed = true;
1233 break;
1234 /*case HEVC_NAL_PPS:
1235 ret = ff_hevc_decode_nal_pps(&gb, NULL, ps);
1236 if (ret < 0)
1237 goto out;
1238 ps->pps_parsed = true;
1239 break;*/
1240 default:
1241 pr_err("Unsupport parser nal type (%s).\n",
1242 hevc_nal_unit_name(nal_type));
1243 break;
1244 }
1245
1246out:
1247 vfree(rbsp_buf);
1248
1249 return 0;
1250}
1251
1252int h265_decode_extradata_ps(u8 *buf, int size, struct h265_param_sets *ps)
1253{
1254 int ret = 0, i = 0, j = 0;
1255 u8 *p = buf;
1256 int len = size;
1257
1258 for (i = 4; i < size; i++) {
1259 j = find_start_code(p, len);
1260 if (j > 0) {
1261 len = size - (p - buf);
1262 ret = decode_extradata_ps(p, len, ps);
1263 if (ret) {
1264 pr_err("parse extra data failed. err: %d\n", ret);
1265 return ret;
1266 }
1267 p += j;
1268 }
1269 p++;
1270 }
1271
1272 return ret;
1273}
1274
1275
generated by cgit at 2024-05-17 09:07:14 (GMT)