\u5199Camera\u8fd9\u4e00\u7cfb\u5217\u4e4b\u524d\uff0c\u5148\u628aCamera\u4e3b\u8981\u7684\u6982\u51b5\u4ecb\u7ecd\u4e0b(\u4e0a\u4e00\u7bc7\u6ca1\u6709\u5199\uff0c\u8fd9\u57fa\u672c\u90fd\u4f1a\u662f\u4e00\u4e9b\u6bd4\u8f83\u7b80\u5355\u800c\u7b80\u77ed\u7684\u6587\u5b57\u8bb0\u5f55)<\/p>\n
\u53c2\u7167 http:\/\/developer.android.com\/reference\/android\/hardware\/Camera.html<\/p>\n
\u6574\u4e2a\u62cd\u7167\u7684\u8fc7\u7a0bDocs\u4e0a\u4e5f\u6709\u5199\u7684\u5f88\u6e05\u695a
\n1. open camera
\n2. get\/set parameters
\n3. set display orientation
\n4. set surface
\n5. start preview
\n6. take picture
\n7. \u62cd\u7167\u4e4b\u540epreview display\u4f1a\u81ea\u52a8\u505c\u6b62\uff0c\u5982\u679c\u8fd8\u60f3\u7ee7\u7eed\u62cd\u6444\u5c31\u9700\u8981\u518d\u6b21\u6267\u884cstep 5
\n8. stop preview
\n9. release camera<\/p>\n
\u8fd9\u5f53\u4e2d\u6709\u4e9b\u662f\u5fc5\u987b\u7684\uff0c\u6709\u4e9b\u4e0d\u662f<\/p>\n
\u5b66\u4e60Camera\u6700\u597d\u719f\u6089\u51e0\u5757\u91cd\u8981\u7684\u90e8\u5206\u4ee3\u7801\uff0c\u8fd9\u6837\u6bd4\u8f83\u5bb9\u6613\u7406\u89e3\uff0c\u56e0\u4e3a\u8fd9\u662f\u4e00\u4e2a\u786c\u4ef6\u548c\u8f6f\u4ef6\u7ed3\u5408\u6bd4\u8f83\u7d27\u5bc6\u7684\u8bdd\u9898\u3002
\n\u5927\u591a\u6570\u65f6\u5019\u6211\u4eec\u53ea\u9700\u8981\u719f\u6089\u5404\u4e2a\u53c2\u6570\uff0c\u7136\u540e\u5c06\u4ed6\u4eec\u901a\u8fc7set parameter\u4f20\u9012\u7ed9hardware\u5c42\u5c31\u80fd\u5b8c\u6210\u6211\u4eec\u9700\u8981\u7684\u5927\u90e8\u5206\u529f\u80fd\u3002<\/p>\n
$ANDROID_SRC_HOME\/frameworks\/base\/core\/java\/android\/hardware\/Camera.java\r\n\r\n$ANDROID_SRC_HOME\/frameworks\/base\/core\/jni\/android_hardware_Camera.cpp\r\n\r\n$ANDROID_SRC_HOME\/frameworks\/base\/include\/camera\/Camera.h\r\n$ANDROID_SRC_HOME\/frameworks\/base\/libs\/camera\/Camera.cpp\r\n<\/pre>\n\u8fd9\u51e0\u4e2a\u6587\u4ef6\u5df2\u7ecf\u57fa\u672c\u53ef\u4ee5\u8ba9\u6211\u4eec\u4eceAPP\u7684\u5c42\u9762\u4e86\u89e3Camera\u4e86<\/p>\n
Camera\u6700\u91cd\u8981\u7684\u4efb\u52a1\u5c31\u662f\u62cd\u6444\u51fa\u6700\u597d\u7684\u7167\u7247\uff0cAPP\u7684parameter\u8bbe\u7f6e\u4e0b\u53bb\uff0c\u53d1\u73b0\u51fa\u6765\u7684\u7247\u5b50\u4e0d\u662f\u6211\u4eec\u60f3\u8981\u7684\uff0c\u8fd9\u65f6\u5c31\u8981\u5206\u6790\u662f\u6211\u4eec\u53c2\u6570\u4e0b\u9519\u4e86\uff0c\u8fd8\u662f\u5e95\u5c42\u51fa\u9519\u4e86\u3002
\n\u8fd9\u90fd\u662f\u6211\u4eecAPP\u8fd9\u5c42\u9700\u8981\u8003\u8651\u7684\u3002<\/p>\n\u5bf9\u4e8e\u7528\u6237\u6765\u8bf4\uff0c\u6700\u7406\u60f3\u7684\u72b6\u6001\u5c31\u662f\u4ec0\u4e48\u90fd\u4e0d\u7528\u8bbe\u7f6e\uff0c\u6309\u4e0b\u62cd\u6444\uff0c\u5c31\u80fd\u51fa\u6765\u6700\u597d\u7684\u7247\u5b50\uff0c\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u5361\u7247\u673a\u88ab\u53d1\u660e\u51fa\u6765\uff0c\u800c\u4e14\u8fd8\u8fd9\u4e48\u53d7\u5230\u6b22\u8fce\uff0c\u867d\u7136\u5361\u7247\u673a\u8fd8\u662f\u65e0\u6cd5\u505a\u5230\u4ec0\u4e48\u90fd\u4e0d\u8bbe\u7f6e\uff0c\u5c31\u80fd\u51fa\u6765\u6700\u4f73\u6548\u679c\u7684\u7247\u5b50\u3002<\/p>\n
\u6982\u51b5\u4ecb\u7ecd\u5c31\u5230\u8fd9\u91cc\uff0c\u5f88\u7b80\u5355\u3002
\n\u4e0b\u9762\u63a5\u7740\u8bf4\u4eca\u5929\u7684\u4e3b\u9898\uff0c\u5f55\u5f71\u4e2d\u62cd\u6444<\/p>\n\u5982\u4ecaSamsung\u548cHTC\u90fd\u6253\u51fa\u8fb9\u5f55\u8fb9\u62cd\u7684\u529f\u80fd\uff0c\u5bf9\u4e8eAPP\u6765\u8bf4\u5b9e\u73b0\u8fd9\u79cd\u529f\u80fd\u4e0d\u96be\uff0c\u53ea\u8981\u673a\u5668\u7684\u82af\u7247\u652f\u6301\u8fd9\u4e2a\u529f\u80fd\uff0c\u5bf9\u4e8eAPP\u6765\u8bf4\u5c31\u6bd4\u8f83\u7b80\u5355\u4e86\u3002<\/p>\n
\u8fd9\u4e2a\u529f\u80fd\u7684\u5b66\u540d\u53eb\u505aVideo Snapshot<\/p>\n
Android\u6709\u8fd9\u4e48\u4e00\u4e2aAPI<\/p>\n
\/**\r\n * Returns true if video snapshot is supported. That is, applications\r\n * can call {@link #takePicture(Camera.ShutterCallback,\r\n * Camera.PictureCallback, Camera.PictureCallback, Camera.PictureCallback)}\r\n * during recording. Applications do not need to call {@link\r\n * #startPreview()} after taking a picture. The preview will be still\r\n * active. Other than that, taking a picture during recording is\r\n * identical to taking a picture normally. All settings and methods\r\n * related to takePicture work identically. Ex: {@link\r\n * #getPictureSize()}, {@link #getSupportedPictureSizes()}, {@link\r\n * #setJpegQuality(int)}, {@link #setRotation(int)}, and etc. The\r\n * picture will have an EXIF header. {@link #FLASH_MODE_AUTO} and {@link\r\n * #FLASH_MODE_ON} also still work, but the video will record the flash.\r\n *\r\n * Applications can set shutter callback as null to avoid the shutter\r\n * sound. It is also recommended to set raw picture and post view\r\n * callbacks to null to avoid the interrupt of preview display.\r\n *\r\n * Field-of-view of the recorded video may be different from that of the\r\n * captured pictures.\r\n *\r\n * @return true if video snapshot is supported.\r\n *\/\r\nandroid.hardware.Camera.Parameters.isVideoSnapshotSupported()<\/pre>\n\u8fd9\u4e2aAPI\u7684\u6ce8\u91ca\u628a\u4f7f\u7528\u8fc7\u7a0b\u90fd\u8bf4\u7684\u5f88\u6e05\u695a\uff0c\u8ddf\u666e\u901a\u62cd\u6444\u6ca1\u4ec0\u4e48\u4e24\u6837\uff0c\u9700\u8981\u6ce8\u610f\u7684\u5c31\u662f\u5728\u505aVideo Snapshot\u7684\u65f6\u5019\u4e0d\u9700\u8981start preview\u5c31\u53ef\u4ee5\u62cd\u6444\uff0c\u56e0\u4e3a\u5f55\u5f71\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6574\u4e2apreview\u4e00\u76f4\u662f\u6d3b\u8dc3\u7684\u3002\u4e0d\u4f1a\u50cf\u666e\u901a\u7684\u62cd\u6444\u4e00\u6837\uff0c\u6bcf\u62cd\u6444\u4e00\u6b21preview\u5c31\u4f1a\u505c\u6b62\uff0c\u9700\u8981\u6211\u4eec\u518d\u6b21start preview\u3002<\/p>\n
\u8fd9\u9879\u529f\u80fd\u7684\u5173\u952e\u5728\u4e8e\u5382\u5546\u7684\u82af\u7247\u7684\u597d\u574f\uff0c\u6bd4\u5982\u80fd\u5426\u5728\u5f55\u5f71\u8fc7\u7a0b\u4e2d\u7684\u62cd\u6444\u4e5f\u652f\u6301full resolution\u7b49\u7b49\u3002<\/p>\n
AOSP\u7684Camera\u5f53\u4e2d\u5c31\u901a\u8fc7\u8fd9\u884c\u4ee3\u7801\u6765\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd<\/p>\n
Log.v(TAG, "Video snapshot start");\r\nmCameraDevice.takePicture(null, null, null, new JpegPictureCallback(loc));<\/pre>\n\u66f4\u591a\u53ef\u4ee5\u53c2\u89c1<\/p>\n
$ANDROID_SRC_HOME\/framework\/packages\/apps\/Camera\/src\/com\/android\/camera\/VideoCamera.java<\/pre>\n\u5f88\u7b80\u5355\u4e0d\u662f\uff1f<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5199Camera\u8fd9\u4e00\u7cfb\u5217\u4e4b\u524d\uff0c\u5148\u628aCamera\u4e3b\u8981\u7684\u6982\u51b5\u4ecb\u7ecd\u4e0b(\u4e0a\u4e00\u7bc7\u6ca1\u6709\u5199\uff0c\u8fd9\u57fa\u672c\u90fd\u4f1a\u662f\u4e00\u4e9b\u6bd4\u8f83\u7b80\u5355\u800c\u7b80\u77ed\u7684\u6587\u5b57\u8bb0\u5f55) \u53c2\u7167 http:\/\/developer.android.com\/reference\/android\/hardware\/Camera.html \u6574\u4e2a\u62cd\u7167\u7684\u8fc7\u7a0bDocs\u4e0a\u4e5f\u6709\u5199\u7684\u5f88\u6e05\u695a 1. open camera 2. get\/set parameters 3. set display orientation 4. set surface 5. start preview 6. take picture 7. \u62cd\u7167\u4e4b\u540epreview display\u4f1a\u81ea\u52a8\u505c\u6b62\uff0c\u5982\u679c\u8fd8\u60f3\u7ee7\u7eed\u62cd\u6444\u5c31\u9700\u8981\u518d\u6b21\u6267\u884cstep 5 8. stop preview 9. release camera \u8fd9\u5f53\u4e2d\u6709\u4e9b\u662f\u5fc5\u987b\u7684\uff0c\u6709\u4e9b\u4e0d\u662f \u5b66\u4e60Camera\u6700\u597d\u719f\u6089\u51e0\u5757\u91cd\u8981\u7684\u90e8\u5206\u4ee3\u7801\uff0c\u8fd9\u6837\u6bd4\u8f83\u5bb9\u6613\u7406\u89e3\uff0c\u56e0\u4e3a\u8fd9\u662f\u4e00\u4e2a\u786c\u4ef6\u548c\u8f6f\u4ef6\u7ed3\u5408\u6bd4\u8f83\u7d27\u5bc6\u7684\u8bdd\u9898\u3002 \u5927\u591a\u6570\u65f6\u5019\u6211\u4eec\u53ea\u9700\u8981\u719f\u6089\u5404\u4e2a\u53c2\u6570\uff0c\u7136\u540e\u5c06\u4ed6\u4eec\u901a\u8fc7set parameter\u4f20\u9012\u7ed9hardware\u5c42\u5c31\u80fd\u5b8c\u6210\u6211\u4eec\u9700\u8981\u7684\u5927\u90e8\u5206\u529f\u80fd\u3002 $ANDROID_SRC_HOME\/frameworks\/base\/core\/java\/android\/hardware\/Camera.java $ANDROID_SRC_HOME\/frameworks\/base\/core\/jni\/android_hardware_Camera.cpp $ANDROID_SRC_HOME\/frameworks\/base\/include\/camera\/Camera.h $ANDROID_SRC_HOME\/frameworks\/base\/libs\/camera\/Camera.cpp \u8fd9\u51e0\u4e2a\u6587\u4ef6\u5df2\u7ecf\u57fa\u672c\u53ef\u4ee5\u8ba9\u6211\u4eec\u4eceAPP\u7684\u5c42\u9762\u4e86\u89e3Camera\u4e86 Camera\u6700\u91cd\u8981\u7684\u4efb\u52a1\u5c31\u662f\u62cd\u6444\u51fa\u6700\u597d\u7684\u7167\u7247\uff0cAPP\u7684parameter\u8bbe\u7f6e\u4e0b\u53bb\uff0c\u53d1\u73b0\u51fa\u6765\u7684\u7247\u5b50\u4e0d\u662f\u6211\u4eec\u60f3\u8981\u7684\uff0c\u8fd9\u65f6\u5c31\u8981\u5206\u6790\u662f\u6211\u4eec\u53c2\u6570\u4e0b\u9519\u4e86\uff0c\u8fd8\u662f\u5e95\u5c42\u51fa\u9519\u4e86\u3002 \u8fd9\u90fd\u662f\u6211\u4eecAPP\u8fd9\u5c42\u9700\u8981\u8003\u8651\u7684\u3002 \u5bf9\u4e8e\u7528\u6237\u6765\u8bf4\uff0c\u6700\u7406\u60f3\u7684\u72b6\u6001\u5c31\u662f\u4ec0\u4e48\u90fd\u4e0d\u7528\u8bbe\u7f6e\uff0c\u6309\u4e0b\u62cd\u6444\uff0c\u5c31\u80fd\u51fa\u6765\u6700\u597d\u7684\u7247\u5b50\uff0c\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u5361\u7247\u673a\u88ab\u53d1\u660e\u51fa\u6765\uff0c\u800c\u4e14\u8fd8\u8fd9\u4e48\u53d7\u5230\u6b22\u8fce\uff0c\u867d\u7136\u5361\u7247\u673a\u8fd8\u662f\u65e0\u6cd5\u505a\u5230\u4ec0\u4e48\u90fd\u4e0d\u8bbe\u7f6e\uff0c\u5c31\u80fd\u51fa\u6765\u6700\u4f73\u6548\u679c\u7684\u7247\u5b50\u3002 \u6982\u51b5\u4ecb\u7ecd\u5c31\u5230\u8fd9\u91cc\uff0c\u5f88\u7b80\u5355\u3002 \u4e0b\u9762\u63a5\u7740\u8bf4\u4eca\u5929\u7684\u4e3b\u9898\uff0c\u5f55\u5f71\u4e2d\u62cd\u6444 \u5982\u4ecaSamsung\u548cHTC\u90fd\u6253\u51fa\u8fb9\u5f55\u8fb9\u62cd\u7684\u529f\u80fd\uff0c\u5bf9\u4e8eAPP\u6765\u8bf4\u5b9e\u73b0\u8fd9\u79cd\u529f\u80fd\u4e0d\u96be\uff0c\u53ea\u8981\u673a\u5668\u7684\u82af\u7247\u652f\u6301\u8fd9\u4e2a\u529f\u80fd\uff0c\u5bf9\u4e8eAPP\u6765\u8bf4\u5c31\u6bd4\u8f83\u7b80\u5355\u4e86\u3002 \u8fd9\u4e2a\u529f\u80fd\u7684\u5b66\u540d\u53eb\u505aVideo Snapshot Android\u6709\u8fd9\u4e48\u4e00\u4e2aAPI \/** * Returns true … Continue reading \u8bfbAOSP\u7684Camera\u6e90\u7801\u4e4b\u5f55\u5f71\u4e2d\u62cd\u6444<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gfmr_meta_descriptions":[],"_gfmr_multilingual_taxonomy_terms":[],"footnotes":""},"categories":[7],"tags":[27],"class_list":["post-465","post","type-post","status-publish","format-standard","hentry","category-android","tag-camera"],"_links":{"self":[{"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/posts\/465","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/comments?post=465"}],"version-history":[{"count":2,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/posts\/465\/revisions"}],"predecessor-version":[{"id":467,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/posts\/465\/revisions\/467"}],"wp:attachment":[{"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/media?parent=465"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/categories?post=465"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/tags?post=465"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}