[2/4]解决USB摄像头打开相机预览界面绿屏

liyujie

2025-08-28 d9927380ed7c8366f762049be9f3fee225860833

 android/hardware/aw/camera/3_4/camera.cpp
..
..
@@ -371,48 +371,90 @@
371
371
     return;
372
372
   }
373
373
   int64_t timestamp = 0;
374
-  struct timespec ts;
375
-  int res = 0;
376
-  res = clock_gettime(CLOCK_MONOTONIC, &ts);
377
-  if (res) {
378
-    HAL_LOGE("Failed to get BOOTTIME for state delegate: %d (%s)",
379
-        errno,
380
-        strerror(errno));
381
-    completeRequestWithError(request);
382
-    return;
383
-  }
384
-  timestamp = ts.tv_sec * 1000000000ULL + ts.tv_nsec;
385
-  res = request->settings.update(ANDROID_SENSOR_TIMESTAMP, &timestamp, 1);
386
-  if (res) {
387
-    HAL_LOGE("Failed to update metadata tag 0x%x", ANDROID_SENSOR_TIMESTAMP);
388
-  }
374
+//  struct timespec ts;
375
+//  int res = 0;
376
+//  res = clock_gettime(CLOCK_MONOTONIC, &ts);
377
+//  if (res) {
378
+//    HAL_LOGE("Failed to get BOOTTIME for state delegate: %d (%s)",
379
+//        errno,
380
+//        strerror(errno));
381
+//    completeRequestWithError(request);
382
+//    return;
383
+//  }
384
+  //timestamp = ts.tv_sec * 1000000000ULL + ts.tv_nsec;
385
+  //res = request->settings.update(ANDROID_SENSOR_TIMESTAMP, &timestamp, 1);
386
+  //if (res) {
387
+  //  HAL_LOGE("Failed to update metadata tag 0x%x", ANDROID_SENSOR_TIMESTAMP);
388
+  //}
389
389
 
390
390
   // Since |request| has been removed from the tracking, this method
391
391
   // MUST call sendResult (can still return a result in an error state, e.g.
392
392
   // through completeRequestWithError) so the frame doesn't get lost.
393
393
   if (err) {
394
-    HAL_LOGE("mId:%d: Error completing request for frame %d.",
395
-        mId, request->frame_number);
396
-    completeRequestWithError(request);
397
-    return;
394
+    switch (err) {
395
+      case 404:
396
+        HAL_LOGI("This is a record complete request!");
397
+        break;
398
+      default:
399
+        HAL_LOGE("mId:%d: Error completing request for frame %d.",
400
+            mId, request->frame_number);
401
+        completeRequestWithError(request);
402
+        return;
403
+    }
398
404
   }
399
405
 
400
-  // Notify the framework with the shutter time (extracted from the result).
401
-  // TODO(b/31360070): The general metadata methods should be part of the
402
-  // default_camera_hal namespace, not the v4l2_camera_hal namespace.
403
-  res = v4l2_camera_hal::SingleTagValue(
404
-      request->settings, ANDROID_SENSOR_TIMESTAMP, &timestamp);
406
+  if (!err) {
407
+    HAL_LOGI("It's a merge picture!");
408
+    struct timespec ts;
409
+    int res;
410
+    res = clock_gettime(CLOCK_BOOTTIME, &ts);
411
+    if (res) {
412
+      HAL_LOGE("Failed to get BOOTTIME for state delegate: %d (%s)",
413
+          errno,
414
+          strerror(errno));
415
+    }
416
+    timestamp = ts.tv_sec * 1000000000ULL + ts.tv_nsec;
417
+    res = request->settings.update(ANDROID_SENSOR_TIMESTAMP, &timestamp, 1);
418
+    if (res) {
419
+      HAL_LOGE("Failed to UpdateMetadata timestamp.");
420
+    }
421
+  } else {
422
+    HAL_LOGI("It's a record!");
423
+    int res;
424
+    // Notify the framework with the shutter time (extracted from the result).
425
+    // TODO(b/31360070): The general metadata methods should be part of the
426
+    // default_camera_hal namespace, not the v4l2_camera_hal namespace.
427
+    res = v4l2_camera_hal::SingleTagValue(
428
+        request->settings, ANDROID_SENSOR_TIMESTAMP, &timestamp);
405
429
 
406
-  if (res) {
407
-    HAL_LOGE("mId:%d: Request for frame %d is missing required metadata.",
408
-        mId, request->frame_number);
409
-    // TODO(b/31653322): Send RESULT error.
410
-    // For now sending REQUEST error instead.
411
-    // TODO(calvin) fix this one, SingleTagValue error.
412
-    // completeRequestWithError(request);
413
-    // return;
430
+    if (res) {
431
+      HAL_LOGE("%s:%d: Request for frame %d is missing required metadata.",
432
+          __func__, mId, request->frame_number);
433
+      // TODO(b/31653322): Send RESULT error.
434
+      // For now sending REQUEST error instead.
435
+      // TODO:calvin, fix this one, SingleTagValue error.
436
+      // completeRequestWithError(request);
437
+      // return;
438
+    }
414
439
   }
415
440
 
441
+
442
+  //// Notify the framework with the shutter time (extracted from the result).
443
+  //// TODO(b/31360070): The general metadata methods should be part of the
444
+  //// default_camera_hal namespace, not the v4l2_camera_hal namespace.
445
+  //res = v4l2_camera_hal::SingleTagValue(
446
+  //    request->settings, ANDROID_SENSOR_TIMESTAMP, &timestamp);
447
+
448
+  //if (res) {
449
+  //  HAL_LOGE("mId:%d: Request for frame %d is missing required metadata.",
450
+  //      mId, request->frame_number);
451
+  //  // TODO(b/31653322): Send RESULT error.
452
+  //  // For now sending REQUEST error instead.
453
+  //  // TODO(calvin) fix this one, SingleTagValue error.
454
+  //  // completeRequestWithError(request);
455
+  //  // return;
456
+  //}
457
+
416
458
 #if DBG_PERFORMANCE
417
459
   if (btimeRequest == 0) {
418
460
     btimeRequest = request->timeRequest;