09c2d08c
Hu Chunming
arm交付版
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
|
#include <cstdio>
#include <cstdlib>
#include "acl/acl.h"
#include "acl/ops/acl_dvpp.h"
#include "acl/dvpp/hi_dvpp.h"
#include <string>
#include <vector>
using namespace std;
int32_t save_jpege_pic(hi_venc_stream &stream, string out_file_name)
{
FILE* fd = nullptr;
fd = fopen(out_file_name.c_str(), "wb");
if (fd == nullptr) {
printf("open output file err\n");
return HI_FAILURE;
}
uint32_t dataLen = stream.pack[0].len - stream.pack[0].offset;
char* pcData = new char[dataLen];
auto aclRet = aclrtMemcpy(pcData, dataLen, stream.pack[0].addr + stream.pack[0].offset,
dataLen, ACL_MEMCPY_DEVICE_TO_HOST);
if (aclRet != ACL_SUCCESS) {
printf("aclrtMemcpy fail %d pcData:%lx,dataLen:%u,addr:%lx,offset:%d ",
aclRet, (uint64_t)pcData, dataLen, (uint64_t)stream.pack[0].addr, stream.pack[0].offset);
delete[] pcData;
pcData = nullptr;
return HI_FAILURE;
}
fwrite(pcData, dataLen, 1, fd);
fflush(fd);
delete[] pcData;
pcData = nullptr;
fclose(fd);
return HI_SUCCESS;
}
int vpc_jpege_save(hi_vpc_pic_info vpc_jpege_pic, string out_file_name){
hi_venc_jpeg_param stParamJpeg{};
void* outputBuf;
hi_venc_stream stream{};
hi_video_frame_info inputFrame{};
hi_u32 outputBufSize = 0;
hi_venc_chn_attr vencChnAttr;
vencChnAttr.venc_attr.type = HI_PT_JPEG;
vencChnAttr.venc_attr.profile = 0;
vencChnAttr.venc_attr.max_pic_width = vpc_jpege_pic.picture_width;
vencChnAttr.venc_attr.max_pic_height = vpc_jpege_pic.picture_height;
vencChnAttr.venc_attr.pic_width = vpc_jpege_pic.picture_width;
vencChnAttr.venc_attr.pic_height = vpc_jpege_pic.picture_height;
vencChnAttr.venc_attr.buf_size = ALIGN_UP(vpc_jpege_pic.picture_width * vpc_jpege_pic.picture_width, 64); // aligned to 64 bytes
vencChnAttr.venc_attr.is_by_frame = HI_TRUE; // get stream mode is field mode or frame mode
vencChnAttr.venc_attr.jpeg_attr.dcf_en = HI_FALSE;
vencChnAttr.venc_attr.jpeg_attr.recv_mode = HI_VENC_PIC_RECV_SINGLE;
vencChnAttr.venc_attr.jpeg_attr.mpf_cfg.large_thumbnail_num = 0;
// create venc chn
hi_venc_chn g_chn_id = 4;
int32_t s32Ret = hi_mpi_venc_create_chn(g_chn_id, &vencChnAttr);
if (s32Ret != HI_SUCCESS) {
printf("hi_mpi_venc_create_chn [%d] faild with %#x!\n", g_chn_id, s32Ret);
return s32Ret;
}
// start venc chn
hi_venc_start_param recvParam;
recvParam.recv_pic_num = -1; // unspecified frame count
s32Ret = hi_mpi_venc_start_chn(g_chn_id, &recvParam);
if (s32Ret != HI_SUCCESS) {
printf("hi_mpi_venc_start_chn faild with%#x in chnl %d!\n", s32Ret, g_chn_id);
goto DESTROY_CHN;
}
// set encode parameter
s32Ret = hi_mpi_venc_get_jpeg_param(g_chn_id, &stParamJpeg);
if (s32Ret != HI_SUCCESS) {
printf("hi_mpi_venc_get_jpeg_param err 0x%x\n", s32Ret);
goto DESTROY_CHN;
}
stParamJpeg.qfactor = 100; // assign qfactor as 100
for (hi_u32 i = 0; i < HI_VENC_JPEG_QT_COEF_NUM; i++) {
stParamJpeg.y_qt[i] = 0xFF;
stParamJpeg.cb_qt[i] = 0xFF;
stParamJpeg.cr_qt[i] = 0xFF;
}
s32Ret = hi_mpi_venc_set_jpeg_param(g_chn_id, &stParamJpeg);
if (s32Ret != HI_SUCCESS) {
printf("hi_mpi_venc_set_jpeg_param err 0x%x\n", s32Ret);
goto DESTROY_CHN;
}
// get predicted stream size
inputFrame.pool_id = 0;
inputFrame.v_frame.width = vpc_jpege_pic.picture_width;
inputFrame.v_frame.height = vpc_jpege_pic.picture_height;
inputFrame.v_frame.dynamic_range = HI_DYNAMIC_RANGE_SDR8; // Dynamic Range
inputFrame.v_frame.compress_mode = HI_COMPRESS_MODE_NONE; // Compression Mode
inputFrame.v_frame.pixel_format = vpc_jpege_pic.picture_format;
inputFrame.v_frame.video_format = HI_VIDEO_FORMAT_LINEAR; // Video format
inputFrame.v_frame.field = HI_VIDEO_FIELD_FRAME; // Frame Or Field Mode
inputFrame.v_frame.color_gamut = HI_COLOR_GAMUT_BT709; // Gamut range
inputFrame.v_frame.header_stride[0] = 0; // Image compression head span
inputFrame.v_frame.header_stride[1] = 0;
inputFrame.v_frame.width_stride[0] = vpc_jpege_pic.picture_width_stride;
inputFrame.v_frame.width_stride[1] = vpc_jpege_pic.picture_width_stride;
inputFrame.v_frame.header_virt_addr[0] = vpc_jpege_pic.picture_address; // Compression header virtual address
inputFrame.v_frame.header_virt_addr[1] = inputFrame.v_frame.header_virt_addr[0];
// virtual address
inputFrame.v_frame.virt_addr[0] = inputFrame.v_frame.header_virt_addr[0];
inputFrame.v_frame.virt_addr[1] =
(hi_void*)((uintptr_t)inputFrame.v_frame.virt_addr[0] +
vpc_jpege_pic.picture_width_stride * vpc_jpege_pic.picture_height_stride);
s32Ret = hi_mpi_venc_get_jpege_predicted_size(&inputFrame, &stParamJpeg, &outputBufSize);
if (s32Ret != HI_SUCCESS) {
printf("hi_mpi_venc_get_jpege_predicted_size err 0x%x\n", s32Ret);
goto FAIL0;
}
// malloc output buffer
s32Ret = hi_mpi_dvpp_malloc(0, &outputBuf, outputBufSize);
if (s32Ret != HI_SUCCESS) {
printf("malloc venc out buffer err 0x%x\n", s32Ret);
goto FAIL0;
}
// send frame
s32Ret = hi_mpi_venc_send_frame(g_chn_id, &inputFrame, 10000); // time out 10000us
if (s32Ret != HI_SUCCESS) {
printf("hi_mpi_venc_send_jpege_frame err 0x%x\n", s32Ret);
goto FAIL1;
}
stream.pack_cnt = 1;
stream.pack = (hi_venc_pack*)malloc(sizeof(hi_venc_pack));
if (stream.pack == nullptr) {
printf("malloc failed!\n");
goto FAIL1;
}
// get stream
s32Ret = hi_mpi_venc_get_stream(g_chn_id, &stream, -1);
if (s32Ret != HI_SUCCESS) {
printf("hi_mpi_venc_get_stream failed with %#x!\n", s32Ret);
goto FAIL2;
}
// save file
s32Ret = save_jpege_pic(stream, out_file_name);
if (s32Ret != HI_SUCCESS) {
printf("save jpege pic failed with %#x!\n", s32Ret);
goto FAIL2;
}
// release stream
s32Ret = hi_mpi_venc_release_stream(g_chn_id, &stream);
if (s32Ret != HI_SUCCESS) {
printf("hi_mpi_venc_release_stream failed with %#x!\n", s32Ret);
goto FAIL2;
}
s32Ret = hi_mpi_venc_stop_chn(g_chn_id);
if (s32Ret != HI_SUCCESS) {
printf("hi_mpi_venc_stop_chn vencChn[%d] failed with %#x!\n", g_chn_id, s32Ret);
goto FAIL2;
}
s32Ret = hi_mpi_venc_destroy_chn(g_chn_id);
if (s32Ret != HI_SUCCESS) {
printf("hi_mpi_venc_destroy_chn [%d] failed with %#x!\n", g_chn_id, s32Ret);
goto FAIL2;
}
// free memory
hi_mpi_dvpp_free(outputBuf);
outputBuf = nullptr;
hi_mpi_dvpp_free(vpc_jpege_pic.picture_address);
vpc_jpege_pic.picture_address = nullptr;
free(stream.pack);
stream.pack = nullptr;
printf("jpegd_vpc_jpege sample finished\n");
return HI_SUCCESS;
FAIL2:
free(stream.pack);
stream.pack = nullptr;
FAIL1:
hi_mpi_dvpp_free(outputBuf);
outputBuf = nullptr;
FAIL0:
hi_mpi_dvpp_free(vpc_jpege_pic.picture_address);
vpc_jpege_pic.picture_address = nullptr;
DESTROY_CHN:
hi_mpi_venc_destroy_chn(g_chn_id);
return HI_FAILURE;
}
int vpc_crop(acldvppPicDesc *input){
aclError aclRet;
// 1.AscendCL初始化
aclRet = aclInit(nullptr);
if(aclRet != ACL_ERROR_NONE){
printf("aclInit failed ! \n");
return aclRet;
}
// 2.运行管理资源申请(依次申请Device、Context)
aclrtContext g_context;
aclRet = aclrtSetDevice(0);
aclRet = aclrtCreateContext(&g_context, 0);
// 3.初始化媒体数据处理系统
int32_t ret = hi_mpi_sys_init();
if (ret != HI_SUCCESS) {
printf("hi_mpi_sys_init failed, ret = %#x!\n", ret);
return ret;
}
// 4.创建通道
hi_vpc_chn chnId;
hi_vpc_chn_attr stChnAttr {};
stChnAttr.attr = 0;
ret = hi_mpi_vpc_sys_create_chn(&chnId, &stChnAttr);
if (ret != HI_SUCCESS) {
printf("Call hi_mpi_vpc_sys_create_chn failed, ret = %#x\n", ret);
hi_mpi_sys_exit();
return ret;
}
int cropInBufferSize = 1920 * 1080 * 3 / 2;
char cropInHostBuffer[1920 * 1080 * 3 / 2];
for(int i=0; i< 1920 * 1080 * 3 / 2; i++){
cropInHostBuffer[i] = i % 255;
}
void *cropInDevBuffer_ = nullptr;
ret = acldvppMalloc(&cropInDevBuffer_, cropInBufferSize);
ret = aclrtMemcpy(cropInDevBuffer_, cropInBufferSize, cropInHostBuffer, cropInBufferSize, ACL_MEMCPY_HOST_TO_DEVICE);
// ret = aclrtMemset(cropInDevBuffer_, cropInBufferSize, 0, cropInBufferSize);
acldvppPicDesc *cropInputDesc_ = acldvppCreatePicDesc();
acldvppSetPicDescData(cropInputDesc_, cropInDevBuffer_);
acldvppSetPicDescFormat(cropInputDesc_, PIXEL_FORMAT_YUV_SEMIPLANAR_420);
acldvppSetPicDescWidth(cropInputDesc_, 1920);
acldvppSetPicDescHeight(cropInputDesc_, 1080);
acldvppSetPicDescWidthStride(cropInputDesc_, 1920);
acldvppSetPicDescHeightStride(cropInputDesc_, 1080);
acldvppSetPicDescSize(cropInputDesc_, cropInBufferSize);
// 5.执行抠图
// 5.1 构造存放输入图片信息的结构体
hi_vpc_pic_info inputPic;
inputPic.picture_width = acldvppGetPicDescWidth(cropInputDesc_);
inputPic.picture_height = acldvppGetPicDescHeight(cropInputDesc_);
inputPic.picture_format = HI_PIXEL_FORMAT_YUV_SEMIPLANAR_420;
inputPic.picture_width_stride = acldvppGetPicDescWidthStride(cropInputDesc_);
inputPic.picture_height_stride = acldvppGetPicDescHeightStride(cropInputDesc_);
inputPic.picture_buffer_size = inputPic.picture_width_stride * inputPic.picture_height_stride * 3 / 2;
// 5.2 准备输入图片数据
inputPic.picture_address = acldvppGetPicDescData(cropInputDesc_);
vpc_jpege_save(inputPic, "input.jpg");
// 5.3 构造存放输出图片信息的结构体
// 该参数表示抠图数量
uint32_t multiCount = 1;
// cropRegionInfos数组的大小与抠图数量保持一致
vector<hi_vpc_crop_region_info> vec_regions;
hi_vpc_crop_region_info cropRegionInfo[1];
for (uint32_t i = 0; i < multiCount; i++) {
// hi_vpc_crop_region_info cropRegionInfo;
hi_vpc_pic_info outputPic;
outputPic.picture_width = 960;
outputPic.picture_height = 540;
outputPic.picture_format = HI_PIXEL_FORMAT_YUV_SEMIPLANAR_420;
outputPic.picture_width_stride = 960;
outputPic.picture_height_stride = 540;
outputPic.picture_buffer_size = outputPic.picture_width_stride * outputPic.picture_height_stride * 3 / 2;
ret = hi_mpi_dvpp_malloc(0, &outputPic.picture_address, outputPic.picture_buffer_size);
// 初始化内存
aclRet = aclrtMemset(outputPic.picture_address, outputPic.picture_buffer_size, 0, outputPic.picture_buffer_size);
// 表示从输入图片中抠出以左上角为原点、分辨率960*540的子图
cropRegionInfo[0].dest_pic_info = outputPic;
cropRegionInfo[0].crop_region.left_offset = 0;
cropRegionInfo[0].crop_region.top_offset = 0;
cropRegionInfo[0].crop_region.crop_width = 960;
cropRegionInfo[0].crop_region.crop_height = 540;
// vec_regions.push_back(cropRegionInfo);
}
// 5.4 调用抠图接口
uint32_t taskID = 0;
ret = hi_mpi_vpc_crop(chnId, &inputPic, cropRegionInfo, 1, &taskID, -1);
// 5.5 等待任务处理结束,任务处理结束后,输出图片数据在outputPic.picture_address指向的内存中
uint32_t taskIDResult = taskID;
ret = hi_mpi_vpc_get_process_result(chnId, taskIDResult, -1);
// 5.6 如果运行模式为ACL_HOST,且Host上需要展示VPC输出的图片数据,则需要申请Host内存,通过aclrtMemcpy接口将Device的输出图片数据传输到Host;如果Host上不需要展示VPC输出的图片数据,则VPC的输出图片数据可以直接作为模型推理的输入
vpc_jpege_save(cropRegionInfo[0].dest_pic_info, "output.jpg");
// 5.7 释放输入、输出内存
ret = hi_mpi_dvpp_free(inputPic.picture_address);
inputPic.picture_address = nullptr;
for (uint32_t i = 0; i < vec_regions.size(); i++) {
hi_mpi_dvpp_free(vec_regions[i].dest_pic_info.picture_address);
vec_regions[i].dest_pic_info.picture_address = nullptr;
}
// 6.销毁通道
ret = hi_mpi_vpc_destroy_chn(chnId);
// 7. 媒体数据处理系统去初始化
ret = hi_mpi_sys_exit();
// 8. 释放运行管理资源(依次释放Context、Device)
aclRet = aclrtDestroyContext(g_context);
aclRet = aclrtResetDevice(0);
return 0;
}
int32_t dvpp_jpege_save(char* pcData , uint32_t dataLen, string out_file_name)
{
FILE* fd = nullptr;
fd = fopen(out_file_name.c_str(), "wb");
if (fd == nullptr) {
printf("open output file err\n");
return HI_FAILURE;
}
fwrite(pcData, dataLen, 1, fd);
fflush(fd);
fclose(fd);
return HI_SUCCESS;
}
void dvpp_jpeg_encode(acldvppPicDesc *encodeInputDesc_, string out_file_name){
aclError aclRet;
// 2.运行管理资源申请(依次申请Device、Context、Stream)
aclrtContext context_;
aclrtStream stream_;
aclrtSetDevice(0);
aclrtCreateContext(&context_, 0);
aclrtCreateStream(&stream_);
// 3.创建图片数据处理通道时的通道描述信息,dvppChannelDesc_是acldvppChannelDesc类型
acldvppChannelDesc *dvppChannelDesc_ = acldvppCreateChannelDesc();
// 4.创建图片数据处理的通道
aclRet = acldvppCreateChannel(dvppChannelDesc_);
// 7. 创建图片编码配置数据,设置编码质量
// 编码质量范围[0, 100],其中level 0编码质量与level 100差不多,而在[1, 100]内数值越小输出图片质量越差。
acldvppJpegeConfig *jpegeConfig_ = acldvppCreateJpegeConfig();
acldvppSetJpegeConfigLevel(jpegeConfig_, 100);
// 8. 申请输出内存,申请Device内存encodeOutBufferDev_,存放编码后的输出数据
uint32_t outBufferSize= 0;
aclRet = acldvppJpegPredictEncSize(encodeInputDesc_, jpegeConfig_, &outBufferSize);
void *encodeOutBufferDev_ = nullptr;
aclRet = acldvppMalloc(&encodeOutBufferDev_, outBufferSize);
// 9. 执行异步编码,再调用aclrtSynchronizeStream接口阻塞程序运行,直到指定Stream中的所有任务都完成
aclRet = acldvppJpegEncodeAsync(dvppChannelDesc_, encodeInputDesc_, encodeOutBufferDev_,
&outBufferSize, jpegeConfig_, stream_);
aclRet = aclrtSynchronizeStream(stream_);
// 该模式下,由于处理结果在Device侧,因此需要调用内存复制接口传输结果数据后,再释放Device侧内存
// 申请Host内存outputHostBuffer
void* outputHostBuffer = malloc(outBufferSize);
// 通过aclrtMemcpy接口将Device的处理结果数据传输到Host
aclRet = aclrtMemcpy(outputHostBuffer, outBufferSize, encodeOutBufferDev_, outBufferSize, ACL_MEMCPY_DEVICE_TO_HOST);
// 释放掉输入输出的device内存
(void)acldvppFree(encodeOutBufferDev_);
// 数据使用完成后,释放内存
dvpp_jpege_save((char*)outputHostBuffer, outBufferSize, out_file_name);
free(outputHostBuffer);
acldvppDestroyChannel(dvppChannelDesc_);
(void)acldvppDestroyChannelDesc(dvppChannelDesc_);
dvppChannelDesc_ = nullptr;
// 11. 释放运行管理资源(依次释放Stream、Context、Device)
aclrtDestroyStream(stream_);
aclrtDestroyContext(context_);
aclrtResetDevice(0);
}
void dvpp_crop(acldvppPicDesc *input_pic_desc){
aclError aclRet;
// 1.AscendCL初始化
aclRet = aclInit(nullptr);
if(aclRet != ACL_ERROR_NONE){
printf("aclInit failed ! \n");
}
int ret = ACL_ERROR_NONE;
// 2.运行管理资源申请(依次申请Device、Context、Stream)
aclrtContext context_;
aclrtStream stream_;
ret = aclrtSetDevice(0);
ret = aclrtCreateContext(&context_, 0);
ret = aclrtCreateStream(&stream_);
// 3. 创建缩放配置数据,并指定抠图区域的位置
// resizeConfig_是acldvppResizeConfig类型
acldvppResizeConfig *resizeConfig_ = acldvppCreateResizeConfig();
aclRet = acldvppSetResizeConfigInterpolation(resizeConfig_, 0);
if(aclRet != ACL_ERROR_NONE){
printf("acldvppSetResizeConfigInterpolation failed ! \n");
}
int cropInBufferSize = 1920 * 1080 * 3 / 2;
char cropInHostBuffer[1920 * 1080 * 3 / 2];
for(int i=0; i< 1920 * 1080 * 3 / 2; i++){
cropInHostBuffer[i] = i % 255;
}
void *cropInDevBuffer_ = nullptr;
ret = acldvppMalloc(&cropInDevBuffer_, cropInBufferSize);
ret = aclrtMemcpy(cropInDevBuffer_, cropInBufferSize, cropInHostBuffer, cropInBufferSize, ACL_MEMCPY_HOST_TO_DEVICE);
acldvppPicDesc *cropInputDesc_ = acldvppCreatePicDesc();
acldvppSetPicDescData(cropInputDesc_, cropInDevBuffer_);
acldvppSetPicDescFormat(cropInputDesc_, PIXEL_FORMAT_YUV_SEMIPLANAR_420);
acldvppSetPicDescWidth(cropInputDesc_, 1920);
acldvppSetPicDescHeight(cropInputDesc_, 1080);
acldvppSetPicDescWidthStride(cropInputDesc_, 1920);
acldvppSetPicDescHeightStride(cropInputDesc_, 1080);
acldvppSetPicDescSize(cropInputDesc_, cropInBufferSize);
dvpp_jpeg_encode(cropInputDesc_, "input.jpg");
// cropArea_是acldvppRoiConfig类型
acldvppRoiConfig *cropArea_ = acldvppCreateRoiConfig(550, 749, 480, 679);
// 4. 创建图片数据处理通道时的通道描述信息,dvppChannelDesc_是acldvppChannelDesc类型
acldvppChannelDesc *dvppChannelDesc_ = acldvppCreateChannelDesc();
// 5. 创建图片数据处理的通道。
ret = acldvppCreateChannel(dvppChannelDesc_);
uint32_t OutputWidth_ = 749 - 550;
uint32_t OutputHeight_ = 679 - 480;
// 7. 申请Device输出内存cropOutBufferDev_,内存大小cropOutBufferSize_根据计算公式得出
// outputPicWidth、outputPicHeight分别表示图片的对齐后宽、对齐后高,此处以YUV420SP格式的图片为例
uint32_t cropOutBufferSize_ = OutputWidth_ * OutputHeight_ * 3 / 2;
void *cropOutBufferDev_ = nullptr;
ret = acldvppMalloc(&cropOutBufferDev_, cropOutBufferSize_);
// 9. 创建输出图片的描述信息,并设置各属性值,cropOutputDesc_是acldvppPicDesc类型
// 如果抠图的输出图片作为模型推理的输入,则输出图片的宽高要与模型要求的宽高保持一致
acldvppPicDesc *cropOutputDesc_ = acldvppCreatePicDesc();
acldvppSetPicDescData(cropOutputDesc_, cropOutBufferDev_);
acldvppSetPicDescFormat(cropOutputDesc_, PIXEL_FORMAT_YUV_SEMIPLANAR_420);
acldvppSetPicDescWidth(cropOutputDesc_, OutputWidth_);
acldvppSetPicDescHeight(cropOutputDesc_, OutputHeight_);
acldvppSetPicDescWidthStride(cropOutputDesc_, OutputWidth_);
acldvppSetPicDescHeightStride(cropOutputDesc_, OutputHeight_);
acldvppSetPicDescSize(cropOutputDesc_, cropOutBufferSize_);
// 10. 执行异步抠图缩放,再调用aclrtSynchronizeStream接口阻塞程序运行,直到指定Stream中的所有任务都完成
ret = acldvppVpcCropResizeAsync(dvppChannelDesc_, cropInputDesc_, cropOutputDesc_, cropArea_, resizeConfig_, stream_);
ret = aclrtSynchronizeStream(stream_);
if(ret != ACL_ERROR_NONE){
printf("Call aclrtSynchronizeStream failed, ret = %d\n", ret);
}
// vpc_jpege_save(cropOutputDesc_, "output.jpg");
dvpp_jpeg_encode(cropOutputDesc_, "output.jpg");
// 11. 抠图贴图结束后,释放资源,包括输入/输出图片的描述信息、输入/输出内存、通道描述信息、通道等
acldvppDestroyRoiConfig(cropArea_);
acldvppDestroyResizeConfig(resizeConfig_);
acldvppDestroyPicDesc(cropOutputDesc_);
// 此时运行在device侧,处理结果也在Device侧,可以根据需要操作抠图结果后,释放Device侧内存
(void)acldvppFree(cropOutBufferDev_);
acldvppDestroyChannel(dvppChannelDesc_);
(void)acldvppDestroyChannelDesc(dvppChannelDesc_);
dvppChannelDesc_ = nullptr;
// 12. 释放运行管理资源(依次释放Stream、Context、Device)
aclrtDestroyStream(stream_);
aclrtDestroyContext(context_);
aclrtResetDevice(0);
}
int main(){
dvpp_crop(nullptr);
}
|