1 | /* SPDX-License-Identifier: MIT |
2 | * Copyright (C) 2018 Intel Corp. |
3 | * |
4 | * Authors: |
5 | * Manasi Navare <manasi.d.navare@intel.com> |
6 | */ |
7 | |
8 | #ifndef DRM_DSC_H_ |
9 | #define DRM_DSC_H_ |
10 | |
11 | #include <drm/display/drm_dp.h> |
12 | |
13 | /* VESA Display Stream Compression DSC 1.2 constants */ |
14 | #define DSC_NUM_BUF_RANGES 15 |
15 | #define DSC_MUX_WORD_SIZE_8_10_BPC 48 |
16 | #define DSC_MUX_WORD_SIZE_12_BPC 64 |
17 | #define DSC_RC_PIXELS_PER_GROUP 3 |
18 | #define DSC_SCALE_DECREMENT_INTERVAL_MAX 4095 |
19 | #define DSC_RANGE_BPG_OFFSET_MASK 0x3f |
20 | |
21 | /* DSC Rate Control Constants */ |
22 | #define DSC_RC_MODEL_SIZE_CONST 8192 |
23 | #define DSC_RC_EDGE_FACTOR_CONST 6 |
24 | #define DSC_RC_TGT_OFFSET_HI_CONST 3 |
25 | #define DSC_RC_TGT_OFFSET_LO_CONST 3 |
26 | |
27 | /* DSC PPS constants and macros */ |
28 | #define DSC_PPS_VERSION_MAJOR_SHIFT 4 |
29 | #define DSC_PPS_BPC_SHIFT 4 |
30 | #define DSC_PPS_MSB_SHIFT 8 |
31 | #define DSC_PPS_LSB_MASK (0xFF << 0) |
32 | #define DSC_PPS_BPP_HIGH_MASK (0x3 << 8) |
33 | #define DSC_PPS_VBR_EN_SHIFT 2 |
34 | #define DSC_PPS_SIMPLE422_SHIFT 3 |
35 | #define DSC_PPS_CONVERT_RGB_SHIFT 4 |
36 | #define DSC_PPS_BLOCK_PRED_EN_SHIFT 5 |
37 | #define DSC_PPS_INIT_XMIT_DELAY_HIGH_MASK (0x3 << 8) |
38 | #define DSC_PPS_SCALE_DEC_INT_HIGH_MASK (0xF << 8) |
39 | #define DSC_PPS_RC_TGT_OFFSET_HI_SHIFT 4 |
40 | #define DSC_PPS_RC_RANGE_MINQP_SHIFT 11 |
41 | #define DSC_PPS_RC_RANGE_MAXQP_SHIFT 6 |
42 | #define DSC_PPS_NATIVE_420_SHIFT 1 |
43 | #define DSC_1_2_MAX_LINEBUF_DEPTH_BITS 16 |
44 | #define DSC_1_2_MAX_LINEBUF_DEPTH_VAL 0 |
45 | #define DSC_1_1_MAX_LINEBUF_DEPTH_BITS 13 |
46 | |
47 | /** |
48 | * struct drm_dsc_rc_range_parameters - DSC Rate Control range parameters |
49 | * |
50 | * This defines different rate control parameters used by the DSC engine |
51 | * to compress the frame. |
52 | */ |
53 | struct drm_dsc_rc_range_parameters { |
54 | /** |
55 | * @range_min_qp: Min Quantization Parameters allowed for this range |
56 | */ |
57 | u8 range_min_qp; |
58 | /** |
59 | * @range_max_qp: Max Quantization Parameters allowed for this range |
60 | */ |
61 | u8 range_max_qp; |
62 | /** |
63 | * @range_bpg_offset: |
64 | * Bits/group offset to apply to target for this group |
65 | */ |
66 | u8 range_bpg_offset; |
67 | }; |
68 | |
69 | /** |
70 | * struct drm_dsc_config - Parameters required to configure DSC |
71 | * |
72 | * Driver populates this structure with all the parameters required |
73 | * to configure the display stream compression on the source. |
74 | */ |
75 | struct drm_dsc_config { |
76 | /** |
77 | * @line_buf_depth: |
78 | * Bits per component for previous reconstructed line buffer |
79 | */ |
80 | u8 line_buf_depth; |
81 | /** |
82 | * @bits_per_component: Bits per component to code (8/10/12) |
83 | */ |
84 | u8 bits_per_component; |
85 | /** |
86 | * @convert_rgb: |
87 | * Flag to indicate if RGB - YCoCg conversion is needed |
88 | * True if RGB input, False if YCoCg input |
89 | */ |
90 | bool convert_rgb; |
91 | /** |
92 | * @slice_count: Number fo slices per line used by the DSC encoder |
93 | */ |
94 | u8 slice_count; |
95 | /** |
96 | * @slice_width: Width of each slice in pixels |
97 | */ |
98 | u16 slice_width; |
99 | /** |
100 | * @slice_height: Slice height in pixels |
101 | */ |
102 | u16 slice_height; |
103 | /** |
104 | * @simple_422: True if simple 4_2_2 mode is enabled else False |
105 | */ |
106 | bool simple_422; |
107 | /** |
108 | * @pic_width: Width of the input display frame in pixels |
109 | */ |
110 | u16 pic_width; |
111 | /** |
112 | * @pic_height: Vertical height of the input display frame |
113 | */ |
114 | u16 pic_height; |
115 | /** |
116 | * @rc_tgt_offset_high: |
117 | * Offset to bits/group used by RC to determine QP adjustment |
118 | */ |
119 | u8 rc_tgt_offset_high; |
120 | /** |
121 | * @rc_tgt_offset_low: |
122 | * Offset to bits/group used by RC to determine QP adjustment |
123 | */ |
124 | u8 rc_tgt_offset_low; |
125 | /** |
126 | * @bits_per_pixel: |
127 | * Target bits per pixel with 4 fractional bits, bits_per_pixel << 4 |
128 | */ |
129 | u16 bits_per_pixel; |
130 | /** |
131 | * @rc_edge_factor: |
132 | * Factor to determine if an edge is present based on the bits produced |
133 | */ |
134 | u8 rc_edge_factor; |
135 | /** |
136 | * @rc_quant_incr_limit1: |
137 | * Slow down incrementing once the range reaches this value |
138 | */ |
139 | u8 rc_quant_incr_limit1; |
140 | /** |
141 | * @rc_quant_incr_limit0: |
142 | * Slow down incrementing once the range reaches this value |
143 | */ |
144 | u8 rc_quant_incr_limit0; |
145 | /** |
146 | * @initial_xmit_delay: |
147 | * Number of pixels to delay the initial transmission |
148 | */ |
149 | u16 initial_xmit_delay; |
150 | /** |
151 | * @initial_dec_delay: |
152 | * Initial decoder delay, number of pixel times that the decoder |
153 | * accumulates data in its rate buffer before starting to decode |
154 | * and output pixels. |
155 | */ |
156 | u16 initial_dec_delay; |
157 | /** |
158 | * @block_pred_enable: |
159 | * True if block prediction is used to code any groups within the |
160 | * picture. False if BP not used |
161 | */ |
162 | bool block_pred_enable; |
163 | /** |
164 | * @first_line_bpg_offset: |
165 | * Number of additional bits allocated for each group on the first |
166 | * line of slice. |
167 | */ |
168 | u8 first_line_bpg_offset; |
169 | /** |
170 | * @initial_offset: Value to use for RC model offset at slice start |
171 | */ |
172 | u16 initial_offset; |
173 | /** |
174 | * @rc_buf_thresh: Thresholds defining each of the buffer ranges |
175 | */ |
176 | u16 rc_buf_thresh[DSC_NUM_BUF_RANGES - 1]; |
177 | /** |
178 | * @rc_range_params: |
179 | * Parameters for each of the RC ranges defined in |
180 | * &struct drm_dsc_rc_range_parameters |
181 | */ |
182 | struct drm_dsc_rc_range_parameters rc_range_params[DSC_NUM_BUF_RANGES]; |
183 | /** |
184 | * @rc_model_size: Total size of RC model |
185 | */ |
186 | u16 rc_model_size; |
187 | /** |
188 | * @flatness_min_qp: Minimum QP where flatness information is sent |
189 | */ |
190 | u8 flatness_min_qp; |
191 | /** |
192 | * @flatness_max_qp: Maximum QP where flatness information is sent |
193 | */ |
194 | u8 flatness_max_qp; |
195 | /** |
196 | * @initial_scale_value: Initial value for the scale factor |
197 | */ |
198 | u8 initial_scale_value; |
199 | /** |
200 | * @scale_decrement_interval: |
201 | * Specifies number of group times between decrementing the scale factor |
202 | * at beginning of a slice. |
203 | */ |
204 | u16 scale_decrement_interval; |
205 | /** |
206 | * @scale_increment_interval: |
207 | * Number of group times between incrementing the scale factor value |
208 | * used at the beginning of a slice. |
209 | */ |
210 | u16 scale_increment_interval; |
211 | /** |
212 | * @nfl_bpg_offset: Non first line BPG offset to be used |
213 | */ |
214 | u16 nfl_bpg_offset; |
215 | /** |
216 | * @slice_bpg_offset: BPG offset used to enforce slice bit |
217 | */ |
218 | u16 slice_bpg_offset; |
219 | /** |
220 | * @final_offset: Final RC linear transformation offset value |
221 | */ |
222 | u16 final_offset; |
223 | /** |
224 | * @vbr_enable: True if VBR mode is enabled, false if disabled |
225 | */ |
226 | bool vbr_enable; |
227 | /** |
228 | * @mux_word_size: Mux word size (in bits) for SSM mode |
229 | */ |
230 | u8 mux_word_size; |
231 | /** |
232 | * @slice_chunk_size: |
233 | * The (max) size in bytes of the "chunks" that are used in slice |
234 | * multiplexing. |
235 | */ |
236 | u16 slice_chunk_size; |
237 | /** |
238 | * @rc_bits: Rate control buffer size in bits |
239 | */ |
240 | u16 rc_bits; |
241 | /** |
242 | * @dsc_version_minor: DSC minor version |
243 | */ |
244 | u8 dsc_version_minor; |
245 | /** |
246 | * @dsc_version_major: DSC major version |
247 | */ |
248 | u8 dsc_version_major; |
249 | /** |
250 | * @native_422: True if Native 4:2:2 supported, else false |
251 | */ |
252 | bool native_422; |
253 | /** |
254 | * @native_420: True if Native 4:2:0 supported else false. |
255 | */ |
256 | bool native_420; |
257 | /** |
258 | * @second_line_bpg_offset: |
259 | * Additional bits/grp for seconnd line of slice for native 4:2:0 |
260 | */ |
261 | u8 second_line_bpg_offset; |
262 | /** |
263 | * @nsl_bpg_offset: |
264 | * Num of bits deallocated for each grp that is not in second line of |
265 | * slice |
266 | */ |
267 | u16 nsl_bpg_offset; |
268 | /** |
269 | * @second_line_offset_adj: |
270 | * Offset adjustment for second line in Native 4:2:0 mode |
271 | */ |
272 | u16 second_line_offset_adj; |
273 | }; |
274 | |
275 | /** |
276 | * struct drm_dsc_picture_parameter_set - Represents 128 bytes of |
277 | * Picture Parameter Set |
278 | * |
279 | * The VESA DSC standard defines picture parameter set (PPS) which display |
280 | * stream compression encoders must communicate to decoders. |
281 | * The PPS is encapsulated in 128 bytes (PPS 0 through PPS 127). The fields in |
282 | * this structure are as per Table 4.1 in Vesa DSC specification v1.1/v1.2. |
283 | * The PPS fields that span over more than a byte should be stored in Big Endian |
284 | * format. |
285 | */ |
286 | struct drm_dsc_picture_parameter_set { |
287 | /** |
288 | * @dsc_version: |
289 | * PPS0[3:0] - dsc_version_minor: Contains Minor version of DSC |
290 | * PPS0[7:4] - dsc_version_major: Contains major version of DSC |
291 | */ |
292 | u8 dsc_version; |
293 | /** |
294 | * @pps_identifier: |
295 | * PPS1[7:0] - Application specific identifier that can be |
296 | * used to differentiate between different PPS tables. |
297 | */ |
298 | u8 pps_identifier; |
299 | /** |
300 | * @pps_reserved: |
301 | * PPS2[7:0]- RESERVED Byte |
302 | */ |
303 | u8 pps_reserved; |
304 | /** |
305 | * @pps_3: |
306 | * PPS3[3:0] - linebuf_depth: Contains linebuffer bit depth used to |
307 | * generate the bitstream. (0x0 - 16 bits for DSC 1.2, 0x8 - 8 bits, |
308 | * 0xA - 10 bits, 0xB - 11 bits, 0xC - 12 bits, 0xD - 13 bits, |
309 | * 0xE - 14 bits for DSC1.2, 0xF - 14 bits for DSC 1.2. |
310 | * PPS3[7:4] - bits_per_component: Bits per component for the original |
311 | * pixels of the encoded picture. |
312 | * 0x0 = 16bpc (allowed only when dsc_version_minor = 0x2) |
313 | * 0x8 = 8bpc, 0xA = 10bpc, 0xC = 12bpc, 0xE = 14bpc (also |
314 | * allowed only when dsc_minor_version = 0x2) |
315 | */ |
316 | u8 pps_3; |
317 | /** |
318 | * @pps_4: |
319 | * PPS4[1:0] -These are the most significant 2 bits of |
320 | * compressed BPP bits_per_pixel[9:0] syntax element. |
321 | * PPS4[2] - vbr_enable: 0 = VBR disabled, 1 = VBR enabled |
322 | * PPS4[3] - simple_422: Indicates if decoder drops samples to |
323 | * reconstruct the 4:2:2 picture. |
324 | * PPS4[4] - Convert_rgb: Indicates if DSC color space conversion is |
325 | * active. |
326 | * PPS4[5] - blobk_pred_enable: Indicates if BP is used to code any |
327 | * groups in picture |
328 | * PPS4[7:6] - Reseved bits |
329 | */ |
330 | u8 pps_4; |
331 | /** |
332 | * @bits_per_pixel_low: |
333 | * PPS5[7:0] - This indicates the lower significant 8 bits of |
334 | * the compressed BPP bits_per_pixel[9:0] element. |
335 | */ |
336 | u8 bits_per_pixel_low; |
337 | /** |
338 | * @pic_height: |
339 | * PPS6[7:0], PPS7[7:0] -pic_height: Specifies the number of pixel rows |
340 | * within the raster. |
341 | */ |
342 | __be16 pic_height; |
343 | /** |
344 | * @pic_width: |
345 | * PPS8[7:0], PPS9[7:0] - pic_width: Number of pixel columns within |
346 | * the raster. |
347 | */ |
348 | __be16 pic_width; |
349 | /** |
350 | * @slice_height: |
351 | * PPS10[7:0], PPS11[7:0] - Slice height in units of pixels. |
352 | */ |
353 | __be16 slice_height; |
354 | /** |
355 | * @slice_width: |
356 | * PPS12[7:0], PPS13[7:0] - Slice width in terms of pixels. |
357 | */ |
358 | __be16 slice_width; |
359 | /** |
360 | * @chunk_size: |
361 | * PPS14[7:0], PPS15[7:0] - Size in units of bytes of the chunks |
362 | * that are used for slice multiplexing. |
363 | */ |
364 | __be16 chunk_size; |
365 | /** |
366 | * @initial_xmit_delay_high: |
367 | * PPS16[1:0] - Most Significant two bits of initial transmission delay. |
368 | * It specifies the number of pixel times that the encoder waits before |
369 | * transmitting data from its rate buffer. |
370 | * PPS16[7:2] - Reserved |
371 | */ |
372 | u8 initial_xmit_delay_high; |
373 | /** |
374 | * @initial_xmit_delay_low: |
375 | * PPS17[7:0] - Least significant 8 bits of initial transmission delay. |
376 | */ |
377 | u8 initial_xmit_delay_low; |
378 | /** |
379 | * @initial_dec_delay: |
380 | * |
381 | * PPS18[7:0], PPS19[7:0] - Initial decoding delay which is the number |
382 | * of pixel times that the decoder accumulates data in its rate buffer |
383 | * before starting to decode and output pixels. |
384 | */ |
385 | __be16 initial_dec_delay; |
386 | /** |
387 | * @pps20_reserved: |
388 | * |
389 | * PPS20[7:0] - Reserved |
390 | */ |
391 | u8 pps20_reserved; |
392 | /** |
393 | * @initial_scale_value: |
394 | * PPS21[5:0] - Initial rcXformScale factor used at beginning |
395 | * of a slice. |
396 | * PPS21[7:6] - Reserved |
397 | */ |
398 | u8 initial_scale_value; |
399 | /** |
400 | * @scale_increment_interval: |
401 | * PPS22[7:0], PPS23[7:0] - Number of group times between incrementing |
402 | * the rcXformScale factor at end of a slice. |
403 | */ |
404 | __be16 scale_increment_interval; |
405 | /** |
406 | * @scale_decrement_interval_high: |
407 | * PPS24[3:0] - Higher 4 bits indicating number of group times between |
408 | * decrementing the rcXformScale factor at beginning of a slice. |
409 | * PPS24[7:4] - Reserved |
410 | */ |
411 | u8 scale_decrement_interval_high; |
412 | /** |
413 | * @scale_decrement_interval_low: |
414 | * PPS25[7:0] - Lower 8 bits of scale decrement interval |
415 | */ |
416 | u8 scale_decrement_interval_low; |
417 | /** |
418 | * @pps26_reserved: |
419 | * PPS26[7:0] |
420 | */ |
421 | u8 pps26_reserved; |
422 | /** |
423 | * @first_line_bpg_offset: |
424 | * PPS27[4:0] - Number of additional bits that are allocated |
425 | * for each group on first line of a slice. |
426 | * PPS27[7:5] - Reserved |
427 | */ |
428 | u8 first_line_bpg_offset; |
429 | /** |
430 | * @nfl_bpg_offset: |
431 | * PPS28[7:0], PPS29[7:0] - Number of bits including frac bits |
432 | * deallocated for each group for groups after the first line of slice. |
433 | */ |
434 | __be16 nfl_bpg_offset; |
435 | /** |
436 | * @slice_bpg_offset: |
437 | * PPS30, PPS31[7:0] - Number of bits that are deallocated for each |
438 | * group to enforce the slice constraint. |
439 | */ |
440 | __be16 slice_bpg_offset; |
441 | /** |
442 | * @initial_offset: |
443 | * PPS32,33[7:0] - Initial value for rcXformOffset |
444 | */ |
445 | __be16 initial_offset; |
446 | /** |
447 | * @final_offset: |
448 | * PPS34,35[7:0] - Maximum end-of-slice value for rcXformOffset |
449 | */ |
450 | __be16 final_offset; |
451 | /** |
452 | * @flatness_min_qp: |
453 | * PPS36[4:0] - Minimum QP at which flatness is signaled and |
454 | * flatness QP adjustment is made. |
455 | * PPS36[7:5] - Reserved |
456 | */ |
457 | u8 flatness_min_qp; |
458 | /** |
459 | * @flatness_max_qp: |
460 | * PPS37[4:0] - Max QP at which flatness is signalled and |
461 | * the flatness adjustment is made. |
462 | * PPS37[7:5] - Reserved |
463 | */ |
464 | u8 flatness_max_qp; |
465 | /** |
466 | * @rc_model_size: |
467 | * PPS38,39[7:0] - Number of bits within RC Model. |
468 | */ |
469 | __be16 rc_model_size; |
470 | /** |
471 | * @rc_edge_factor: |
472 | * PPS40[3:0] - Ratio of current activity vs, previous |
473 | * activity to determine presence of edge. |
474 | * PPS40[7:4] - Reserved |
475 | */ |
476 | u8 rc_edge_factor; |
477 | /** |
478 | * @rc_quant_incr_limit0: |
479 | * PPS41[4:0] - QP threshold used in short term RC |
480 | * PPS41[7:5] - Reserved |
481 | */ |
482 | u8 rc_quant_incr_limit0; |
483 | /** |
484 | * @rc_quant_incr_limit1: |
485 | * PPS42[4:0] - QP threshold used in short term RC |
486 | * PPS42[7:5] - Reserved |
487 | */ |
488 | u8 rc_quant_incr_limit1; |
489 | /** |
490 | * @rc_tgt_offset: |
491 | * PPS43[3:0] - Lower end of the variability range around the target |
492 | * bits per group that is allowed by short term RC. |
493 | * PPS43[7:4]- Upper end of the variability range around the target |
494 | * bits per group that i allowed by short term rc. |
495 | */ |
496 | u8 rc_tgt_offset; |
497 | /** |
498 | * @rc_buf_thresh: |
499 | * PPS44[7:0] - PPS57[7:0] - Specifies the thresholds in RC model for |
500 | * the 15 ranges defined by 14 thresholds. |
501 | */ |
502 | u8 rc_buf_thresh[DSC_NUM_BUF_RANGES - 1]; |
503 | /** |
504 | * @rc_range_parameters: |
505 | * PPS58[7:0] - PPS87[7:0] |
506 | * Parameters that correspond to each of the 15 ranges. |
507 | */ |
508 | __be16 rc_range_parameters[DSC_NUM_BUF_RANGES]; |
509 | /** |
510 | * @native_422_420: |
511 | * PPS88[0] - 0 = Native 4:2:2 not used |
512 | * 1 = Native 4:2:2 used |
513 | * PPS88[1] - 0 = Native 4:2:0 not use |
514 | * 1 = Native 4:2:0 used |
515 | * PPS88[7:2] - Reserved 6 bits |
516 | */ |
517 | u8 native_422_420; |
518 | /** |
519 | * @second_line_bpg_offset: |
520 | * PPS89[4:0] - Additional bits/group budget for the |
521 | * second line of a slice in Native 4:2:0 mode. |
522 | * Set to 0 if DSC minor version is 1 or native420 is 0. |
523 | * PPS89[7:5] - Reserved |
524 | */ |
525 | u8 second_line_bpg_offset; |
526 | /** |
527 | * @nsl_bpg_offset: |
528 | * PPS90[7:0], PPS91[7:0] - Number of bits that are deallocated |
529 | * for each group that is not in the second line of a slice. |
530 | */ |
531 | __be16 nsl_bpg_offset; |
532 | /** |
533 | * @second_line_offset_adj: |
534 | * PPS92[7:0], PPS93[7:0] - Used as offset adjustment for the second |
535 | * line in Native 4:2:0 mode. |
536 | */ |
537 | __be16 second_line_offset_adj; |
538 | /** |
539 | * @pps_long_94_reserved: |
540 | * PPS 94, 95, 96, 97 - Reserved |
541 | */ |
542 | u32 pps_long_94_reserved; |
543 | /** |
544 | * @pps_long_98_reserved: |
545 | * PPS 98, 99, 100, 101 - Reserved |
546 | */ |
547 | u32 pps_long_98_reserved; |
548 | /** |
549 | * @pps_long_102_reserved: |
550 | * PPS 102, 103, 104, 105 - Reserved |
551 | */ |
552 | u32 pps_long_102_reserved; |
553 | /** |
554 | * @pps_long_106_reserved: |
555 | * PPS 106, 107, 108, 109 - reserved |
556 | */ |
557 | u32 pps_long_106_reserved; |
558 | /** |
559 | * @pps_long_110_reserved: |
560 | * PPS 110, 111, 112, 113 - reserved |
561 | */ |
562 | u32 pps_long_110_reserved; |
563 | /** |
564 | * @pps_long_114_reserved: |
565 | * PPS 114 - 117 - reserved |
566 | */ |
567 | u32 pps_long_114_reserved; |
568 | /** |
569 | * @pps_long_118_reserved: |
570 | * PPS 118 - 121 - reserved |
571 | */ |
572 | u32 pps_long_118_reserved; |
573 | /** |
574 | * @pps_long_122_reserved: |
575 | * PPS 122- 125 - reserved |
576 | */ |
577 | u32 pps_long_122_reserved; |
578 | /** |
579 | * @pps_short_126_reserved: |
580 | * PPS 126, 127 - reserved |
581 | */ |
582 | __be16 pps_short_126_reserved; |
583 | } __packed; |
584 | |
585 | /** |
586 | * struct drm_dsc_pps_infoframe - DSC infoframe carrying the Picture Parameter |
587 | * Set Metadata |
588 | * |
589 | * This structure represents the DSC PPS infoframe required to send the Picture |
590 | * Parameter Set metadata required before enabling VESA Display Stream |
591 | * Compression. This is based on the DP Secondary Data Packet structure and |
592 | * comprises of SDP Header as defined &struct dp_sdp_header in drm_dp_helper.h |
593 | * and PPS payload defined in &struct drm_dsc_picture_parameter_set. |
594 | * |
595 | * @pps_header: Header for PPS as per DP SDP header format of type |
596 | * &struct dp_sdp_header |
597 | * @pps_payload: PPS payload fields as per DSC specification Table 4-1 |
598 | * as represented in &struct drm_dsc_picture_parameter_set |
599 | */ |
600 | struct drm_dsc_pps_infoframe { |
601 | struct dp_sdp_header ; |
602 | struct drm_dsc_picture_parameter_set pps_payload; |
603 | } __packed; |
604 | |
605 | #endif /* _DRM_DSC_H_ */ |
606 | |