1 /*
2 * Copyright (C) Texas Instruments - http://www.ti.com/
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 /**
18 * @file V4LCapabilities.cpp
19 *
20 * This file implements the V4L Capabilities feature.
21 *
22 */
23
24 #include "CameraHal.h"
25 #include "V4LCameraAdapter.h"
26 #include "ErrorUtils.h"
27 #include "TICameraParameters.h"
28
29 namespace Ti {
30 namespace Camera {
31
32 /************************************
33 * global constants and variables
34 *************************************/
35
36 #define ARRAY_SIZE(array) (sizeof((array)) / sizeof((array)[0]))
37 #define MAX_RES_STRING_LENGTH 10
38 #define DEFAULT_WIDTH 640
39 #define DEFAULT_HEIGHT 480
40
41 static const char PARAM_SEP[] = ",";
42
43 //Camera defaults
44 const char V4LCameraAdapter::DEFAULT_PICTURE_FORMAT[] = "jpeg";
45 const char V4LCameraAdapter::DEFAULT_PICTURE_SIZE[] = "640x480";
46 const char V4LCameraAdapter::DEFAULT_PREVIEW_FORMAT[] = "yuv422i-yuyv";
47 const char V4LCameraAdapter::DEFAULT_PREVIEW_SIZE[] = "640x480";
48 const char V4LCameraAdapter::DEFAULT_NUM_PREV_BUFS[] = "6";
49 const char V4LCameraAdapter::DEFAULT_FRAMERATE[] = "30";
50 const char V4LCameraAdapter::DEFAULT_FOCUS_MODE[] = "infinity";
51 const char * V4LCameraAdapter::DEFAULT_VSTAB = android::CameraParameters::FALSE;
52 const char * V4LCameraAdapter::DEFAULT_VNF = android::CameraParameters::FALSE;
53
54
55 const CapPixelformat V4LCameraAdapter::mPixelformats [] = {
56 { V4L2_PIX_FMT_YUYV, android::CameraParameters::PIXEL_FORMAT_YUV422I },
57 { V4L2_PIX_FMT_JPEG, android::CameraParameters::PIXEL_FORMAT_JPEG },
58 };
59
60 /*****************************************
61 * internal static function declarations
62 *****************************************/
63
64 /**** Utility functions to help translate V4L Caps to Parameter ****/
65
insertDefaults(CameraProperties::Properties * params,V4L_TI_CAPTYPE & caps)66 status_t V4LCameraAdapter::insertDefaults(CameraProperties::Properties* params, V4L_TI_CAPTYPE &caps)
67 {
68 status_t ret = NO_ERROR;
69 LOG_FUNCTION_NAME;
70
71 params->set(CameraProperties::PREVIEW_FORMAT, DEFAULT_PREVIEW_FORMAT);
72
73 params->set(CameraProperties::PICTURE_FORMAT, DEFAULT_PICTURE_FORMAT);
74 params->set(CameraProperties::PICTURE_SIZE, DEFAULT_PICTURE_SIZE);
75 params->set(CameraProperties::PREVIEW_SIZE, DEFAULT_PREVIEW_SIZE);
76 params->set(CameraProperties::PREVIEW_FRAME_RATE, DEFAULT_FRAMERATE);
77 params->set(CameraProperties::REQUIRED_PREVIEW_BUFS, DEFAULT_NUM_PREV_BUFS);
78 params->set(CameraProperties::FOCUS_MODE, DEFAULT_FOCUS_MODE);
79
80 params->set(CameraProperties::CAMERA_NAME, "USBCAMERA");
81 params->set(CameraProperties::JPEG_THUMBNAIL_SIZE, "320x240");
82 params->set(CameraProperties::JPEG_QUALITY, "90");
83 params->set(CameraProperties::JPEG_THUMBNAIL_QUALITY, "50");
84 params->set(CameraProperties::FRAMERATE_RANGE_SUPPORTED, "(30000,30000)");
85 params->set(CameraProperties::FRAMERATE_RANGE, "30000,30000");
86 params->set(CameraProperties::S3D_PRV_FRAME_LAYOUT, "none");
87 params->set(CameraProperties::SUPPORTED_EXPOSURE_MODES, "auto");
88 params->set(CameraProperties::SUPPORTED_ISO_VALUES, "auto");
89 params->set(CameraProperties::SUPPORTED_ANTIBANDING, "auto");
90 params->set(CameraProperties::SUPPORTED_EFFECTS, "none");
91 params->set(CameraProperties::SUPPORTED_IPP_MODES, "ldc-nsf");
92 params->set(CameraProperties::FACING_INDEX, TICameraParameters::FACING_FRONT);
93 params->set(CameraProperties::ORIENTATION_INDEX, 0);
94 params->set(CameraProperties::SENSOR_ORIENTATION, "0");
95 params->set(CameraProperties::VSTAB, DEFAULT_VSTAB);
96 params->set(CameraProperties::VNF, DEFAULT_VNF);
97
98
99 LOG_FUNCTION_NAME_EXIT;
100
101 return ret;
102 }
103
insertPreviewFormats(CameraProperties::Properties * params,V4L_TI_CAPTYPE & caps)104 status_t V4LCameraAdapter::insertPreviewFormats(CameraProperties::Properties* params, V4L_TI_CAPTYPE &caps) {
105
106 char supported[MAX_PROP_VALUE_LENGTH];
107
108 memset(supported, '\0', MAX_PROP_VALUE_LENGTH);
109 for (int i = 0; i < caps.ulPreviewFormatCount; i++) {
110 for (unsigned int j = 0; j < ARRAY_SIZE(mPixelformats); j++) {
111 if(caps.ePreviewFormats[i] == mPixelformats[j].pixelformat ) {
112 strncat (supported, mPixelformats[j].param, MAX_PROP_VALUE_LENGTH-1 );
113 strncat (supported, PARAM_SEP, 1 );
114 }
115 }
116 }
117 strncat(supported, android::CameraParameters::PIXEL_FORMAT_YUV420P, MAX_PROP_VALUE_LENGTH - 1);
118 params->set(CameraProperties::SUPPORTED_PREVIEW_FORMATS, supported);
119 return NO_ERROR;
120 }
121
insertPreviewSizes(CameraProperties::Properties * params,V4L_TI_CAPTYPE & caps)122 status_t V4LCameraAdapter::insertPreviewSizes(CameraProperties::Properties* params, V4L_TI_CAPTYPE &caps) {
123
124 char supported[MAX_PROP_VALUE_LENGTH];
125
126 memset(supported, '\0', MAX_PROP_VALUE_LENGTH);
127 for (int i = 0; i < caps.ulPreviewResCount; i++) {
128 if (supported[0] != '\0') {
129 strncat(supported, PARAM_SEP, 1);
130 }
131 strncat (supported, caps.tPreviewRes[i].param, MAX_PROP_VALUE_LENGTH-1 );
132 }
133
134 params->set(CameraProperties::SUPPORTED_PREVIEW_SIZES, supported);
135 params->set(CameraProperties::SUPPORTED_PREVIEW_SUBSAMPLED_SIZES, supported);
136 return NO_ERROR;
137 }
138
insertImageSizes(CameraProperties::Properties * params,V4L_TI_CAPTYPE & caps)139 status_t V4LCameraAdapter::insertImageSizes(CameraProperties::Properties* params, V4L_TI_CAPTYPE &caps) {
140
141 char supported[MAX_PROP_VALUE_LENGTH];
142
143 memset(supported, '\0', MAX_PROP_VALUE_LENGTH);
144 for (int i = 0; i < caps.ulCaptureResCount; i++) {
145 if (supported[0] != '\0') {
146 strncat(supported, PARAM_SEP, 1);
147 }
148 strncat (supported, caps.tCaptureRes[i].param, MAX_PROP_VALUE_LENGTH-1 );
149 }
150 params->set(CameraProperties::SUPPORTED_PICTURE_SIZES, supported);
151 return NO_ERROR;
152 }
153
insertFrameRates(CameraProperties::Properties * params,V4L_TI_CAPTYPE & caps)154 status_t V4LCameraAdapter::insertFrameRates(CameraProperties::Properties* params, V4L_TI_CAPTYPE &caps) {
155
156 char supported[MAX_PROP_VALUE_LENGTH];
157 char temp[10];
158
159 memset(supported, '\0', MAX_PROP_VALUE_LENGTH);
160 for (int i = 0; i < caps.ulFrameRateCount; i++) {
161 snprintf (temp, 10, "%d", caps.ulFrameRates[i] );
162 if (supported[0] != '\0') {
163 strncat(supported, PARAM_SEP, 1);
164 }
165 strncat (supported, temp, MAX_PROP_VALUE_LENGTH-1 );
166 }
167
168 params->set(CameraProperties::SUPPORTED_PREVIEW_FRAME_RATES, supported);
169 return NO_ERROR;
170 }
171
insertCapabilities(CameraProperties::Properties * params,V4L_TI_CAPTYPE & caps)172 status_t V4LCameraAdapter::insertCapabilities(CameraProperties::Properties* params, V4L_TI_CAPTYPE &caps)
173 {
174 status_t ret = NO_ERROR;
175
176 LOG_FUNCTION_NAME;
177
178 if ( NO_ERROR == ret ) {
179 ret = insertPreviewFormats(params, caps);
180 }
181
182 if ( NO_ERROR == ret ) {
183 ret = insertImageSizes(params, caps);
184 }
185
186 if ( NO_ERROR == ret ) {
187 ret = insertPreviewSizes(params, caps);
188 }
189
190 if ( NO_ERROR == ret ) {
191 ret = insertFrameRates(params, caps);
192 }
193
194 //Insert Supported Focus modes.
195 params->set(CameraProperties::SUPPORTED_FOCUS_MODES, "infinity");
196
197 params->set(CameraProperties::SUPPORTED_PICTURE_FORMATS, "jpeg");
198
199 if ( NO_ERROR == ret ) {
200 ret = insertDefaults(params, caps);
201 }
202
203 LOG_FUNCTION_NAME_EXIT;
204
205 return ret;
206 }
207
sortAscend(V4L_TI_CAPTYPE & caps,uint16_t count)208 status_t V4LCameraAdapter::sortAscend(V4L_TI_CAPTYPE &caps, uint16_t count) {
209 size_t tempRes;
210 size_t w, h, tmpW,tmpH;
211 for (int i=0; i<count; i++) {
212 w = caps.tPreviewRes[i].width;
213 h = caps.tPreviewRes[i].height;
214 tempRes = w*h;
215 for (int j=i+1; j<count; j++) {
216 tmpW = caps.tPreviewRes[j].width;
217 tmpH = caps.tPreviewRes[j].height;
218
219 if (tempRes > (tmpW * tmpH) ) {
220 caps.tPreviewRes[j].width = w;
221 caps.tPreviewRes[j].height = h;
222 w = tmpW;
223 h = tmpH;
224 }
225 }
226 caps.tPreviewRes[i].width = w;
227 caps.tPreviewRes[i].height = h;
228
229 }
230 return NO_ERROR;
231 }
232
233 /*****************************************
234 * public exposed function declarations
235 *****************************************/
236
getCaps(const int sensorId,CameraProperties::Properties * params,V4L_HANDLETYPE handle)237 status_t V4LCameraAdapter::getCaps(const int sensorId, CameraProperties::Properties* params,
238 V4L_HANDLETYPE handle) {
239 status_t status = NO_ERROR;
240 V4L_TI_CAPTYPE caps;
241 int i = 0;
242 int j = 0;
243 struct v4l2_fmtdesc fmtDesc;
244 struct v4l2_frmsizeenum frmSizeEnum;
245 struct v4l2_frmivalenum frmIvalEnum;
246
247 //get supported pixel formats
248 for ( i = 0; status == NO_ERROR; i++) {
249 fmtDesc.index = i;
250 fmtDesc.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
251 status = ioctl (handle, VIDIOC_ENUM_FMT, &fmtDesc);
252 if (status == NO_ERROR) {
253 CAMHAL_LOGDB("fmtDesc[%d].description::pixelformat::flags== (%s::%d::%d)",i, fmtDesc.description,fmtDesc.pixelformat,fmtDesc.flags);
254 caps.ePreviewFormats[i] = fmtDesc.pixelformat;
255 }
256 }
257 caps.ulPreviewFormatCount = i;
258
259 //get preview sizes & capture image sizes
260 status = NO_ERROR;
261 for ( i = 0; status == NO_ERROR; i++) {
262 frmSizeEnum.index = i;
263 //Check for frame sizes for default pixel format
264 //TODO: Check for frame sizes for all supported pixel formats
265 frmSizeEnum.pixel_format = V4L2_PIX_FMT_YUYV;
266 status = ioctl (handle, VIDIOC_ENUM_FRAMESIZES, &frmSizeEnum);
267 if (status == NO_ERROR) {
268 int width;
269 int height;
270
271 if(frmSizeEnum.type != V4L2_FRMSIZE_TYPE_DISCRETE) {
272 CAMHAL_LOGDB("\nfrmSizeEnum.type = %d", frmSizeEnum.type);
273 CAMHAL_LOGDB("\nmin_width x height = %d x %d ",frmSizeEnum.stepwise.min_width, frmSizeEnum.stepwise.min_height);
274 CAMHAL_LOGDB("\nmax_width x height = %d x %d ",frmSizeEnum.stepwise.max_width, frmSizeEnum.stepwise.max_height);
275 CAMHAL_LOGDB("\nstep width x height = %d x %d ",frmSizeEnum.stepwise.step_width,frmSizeEnum.stepwise.step_height);
276 //TODO: validate populating the sizes when type = V4L2_FRMSIZE_TYPE_STEPWISE
277 width = frmSizeEnum.stepwise.max_width;
278 height = frmSizeEnum.stepwise.max_height;
279 }
280 else {
281 CAMHAL_LOGDB("frmSizeEnum.index[%d].width x height == (%d x %d)", i, frmSizeEnum.discrete.width, frmSizeEnum.discrete.height);
282 width = frmSizeEnum.discrete.width;
283 height = frmSizeEnum.discrete.height;
284 }
285
286 caps.tCaptureRes[i].width = width;
287 caps.tCaptureRes[i].height = height;
288 caps.tPreviewRes[i].width = width;
289 caps.tPreviewRes[i].height = height;
290
291 snprintf(caps.tPreviewRes[i].param, MAX_RES_STRING_LENGTH,"%dx%d",caps.tPreviewRes[i].width,caps.tPreviewRes[i].height);
292 snprintf(caps.tCaptureRes[i].param, MAX_RES_STRING_LENGTH,"%dx%d",caps.tCaptureRes[i].width,caps.tCaptureRes[i].height);
293 }
294 else {
295 caps.ulCaptureResCount = i;
296 caps.ulPreviewResCount = i;
297 }
298 }
299
300 //sort the preview sizes in ascending order
301 sortAscend(caps, caps.ulPreviewResCount);
302
303 //get supported frame rates
304 bool fps30 = false;
305 for ( j=caps.ulPreviewResCount-1; j >= 0; j--) {
306 CAMHAL_LOGDB(" W x H = %d x %d", caps.tPreviewRes[j].width, caps.tPreviewRes[j].height);
307 status = NO_ERROR;
308 for ( i = 0; status == NO_ERROR; i++) {
309 frmIvalEnum.index = i;
310 //Check for supported frame rates for the default pixel format.
311 frmIvalEnum.pixel_format = V4L2_PIX_FMT_YUYV;
312 frmIvalEnum.width = caps.tPreviewRes[j].width;
313 frmIvalEnum.height = caps.tPreviewRes[j].height;
314
315 status = ioctl (handle, VIDIOC_ENUM_FRAMEINTERVALS, &frmIvalEnum);
316 if (status == NO_ERROR) {
317 if(frmIvalEnum.type != V4L2_FRMIVAL_TYPE_DISCRETE) {
318 CAMHAL_LOGDB("frmIvalEnum[%d].type = %d)", i, frmIvalEnum.type);
319 CAMHAL_LOGDB("frmIvalEnum[%d].stepwise.min = %d/%d)", i, frmIvalEnum.stepwise.min.denominator, frmIvalEnum.stepwise.min.numerator);
320 CAMHAL_LOGDB("frmIvalEnum[%d].stepwise.max = %d/%d)", i, frmIvalEnum.stepwise.max.denominator, frmIvalEnum.stepwise.max.numerator);
321 CAMHAL_LOGDB("frmIvalEnum[%d].stepwise.step = %d/%d)", i, frmIvalEnum.stepwise.step.denominator, frmIvalEnum.stepwise.step.numerator);
322 caps.ulFrameRates[i] = (frmIvalEnum.stepwise.max.denominator/frmIvalEnum.stepwise.max.numerator);
323 }
324 else {
325 CAMHAL_LOGDB("frmIvalEnum[%d].frame rate= %d)",i, (frmIvalEnum.discrete.denominator/frmIvalEnum.discrete.numerator));
326 caps.ulFrameRates[i] = (frmIvalEnum.discrete.denominator/frmIvalEnum.discrete.numerator);
327 }
328
329 if (caps.ulFrameRates[i] == 30) {
330 fps30 = true;
331 }
332 }
333 else if (i == 0) {
334 // Framerate reporting is not guaranteed in V4L2 implementation.
335 caps.ulFrameRates[i] = 30;
336 fps30 = true;
337 caps.ulFrameRateCount = 1;
338 } else {
339 CAMHAL_LOGE("caps.ulFrameRateCount = %d",i);
340 caps.ulFrameRateCount = i;
341 }
342 }
343 if(fps30) {
344 break;
345 }
346 }
347
348 if(frmIvalEnum.type != V4L2_FRMIVAL_TYPE_DISCRETE) {
349 //TODO: populate the frame rates when type = V4L2_FRMIVAL_TYPE_STEPWISE;
350 }
351
352 //update the preview resolution with the highest resolution which supports 30fps.
353 /* // for video preview the application choose the resolution from the mediaprofiles.xml.
354 // so populating all supported preview resolution is required for video mode.
355 caps.tPreviewRes[0].width = caps.tPreviewRes[j].width;
356 caps.tPreviewRes[0].height = caps.tPreviewRes[j].height;
357 snprintf(caps.tPreviewRes[0].param, MAX_RES_STRING_LENGTH,"%dx%d",caps.tPreviewRes[j].width,caps.tPreviewRes[j].height);
358 caps.ulPreviewResCount = 1;
359 */
360 insertCapabilities (params, caps);
361 return NO_ERROR;
362 }
363
364
365
366 } // namespace Camera
367 } // namespace Ti
368