v310 拍照发现预览照片时显示异常

原因：

jpg的EXIF信息出错， 为了简单， 不写入 EXIF即可

#if (CAM_WRITE_JPEG_THUMB_EXIF_EN > 0)

if (mMsgEnabled & CAMERA_MSG_COMPRESSED_IMAGE) {

camera_memory_t *ExifHeap =

mGetMemoryCb(-1, EXIF_FILE_SIZE + mThumbSize, 1, 0);

int JpegExifSize = mSecCamera->getExif((unsigned char *)ExifHeap->data,

(unsigned char *)mThumbnailHeap->base(),

mThumbSize);

LOGV("JpegExifSize=%d", JpegExifSize);

if (JpegExifSize < 0) {

ret = UNKNOWN_ERROR;

goto out;

}

int mJpegHeapSize_out = JpegImageSize + JpegExifSize;

camera_memory_t *JpegHeap_out = mGetMemoryCb(-1, mJpegHeapSize_out, 1, 0);

unsigned char *ExifStart = (unsigned char *)JpegHeap_out->data + 2;

unsigned char *ImageStart = ExifStart + JpegExifSize;

memcpy(JpegHeap_out->data, JpegHeap->data, 2);

memcpy(ExifStart, ExifHeap->data, JpegExifSize);

memcpy(ImageStart, JpegHeap->data + 2, JpegImageSize - 2);

mDataCb(CAMERA_MSG_COMPRESSED_IMAGE, JpegHeap_out, 0, NULL, mCallbackCookie);

if (ExifHeap) {

ExifHeap->release(ExifHeap);

ExifHeap = 0;

}

if (JpegHeap_out) {

JpegHeap_out->release(JpegHeap_out);

JpegHeap_out = 0;

}

}

#else

/*

在预览图片时底部显示异常， 但是真正打开时是显示正常的，

经查实发现是 EXIF 的信息造成的问题， 现在为了简单解决， 不写入 EXIT 信息

*/

if (mMsgEnabled & CAMERA_MSG_COMPRESSED_IMAGE) {

camera_memory_t *ExifHeap = NULL;

//mGetMemoryCb(-1, EXIF_FILE_SIZE + mThumbSize, 1, 0);

int JpegExifSize = 0;//mSecCamera->getExif((unsigned char *)ExifHeap->data,

// (unsigned char *)mThumbnailHeap->base(),

// mThumbSize);

LOGV("JpegExifSize=%d", JpegExifSize);

if (JpegExifSize < 0) {

ret = UNKNOWN_ERROR;

goto out;

}

int mJpegHeapSize_out = JpegImageSize + JpegExifSize;

camera_memory_t *JpegHeap_out = mGetMemoryCb(-1, mJpegHeapSize_out, 1, 0);

//unsigned char *ExifStart = (unsigned char *)JpegHeap_out->data + 2;

//unsigned char *ImageStart = ExifStart + JpegExifSize;

//memcpy(JpegHeap_out->data, JpegHeap->data, 2);

//memcpy(ExifStart, ExifHeap->data, JpegExifSize);

//memcpy(ImageStart, JpegHeap->data + 2, JpegImageSize - 2);

//memcpy(ImageStart, JpegHeap->data, JpegImageSize);

memcpy((unsigned char *)JpegHeap_out->data, JpegHeap->data, JpegImageSize);

mDataCb(CAMERA_MSG_COMPRESSED_IMAGE, JpegHeap_out, 0, NULL, mCallbackCookie);

if (ExifHeap) {

ExifHeap->release(ExifHeap);

ExifHeap = 0;

}

if (JpegHeap_out) {

JpegHeap_out->release(JpegHeap_out);

JpegHeap_out = 0;

}

}

#endif

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