├── .gitignore
├── .idea
├── .name
├── compiler.xml
├── copyright
│ └── profiles_settings.xml
├── encodings.xml
├── gradle.xml
├── misc.xml
├── modules.xml
├── runConfigurations.xml
└── vcs.xml
├── README.md
├── app
├── .gitignore
├── build.gradle
├── proguard-rules.pro
└── src
│ ├── androidTest
│ └── java
│ │ └── com
│ │ └── polarxiong
│ │ └── videotoimages
│ │ └── ApplicationTest.java
│ ├── main
│ ├── AndroidManifest.xml
│ ├── java
│ │ └── com
│ │ │ └── polarxiong
│ │ │ └── videotoimages
│ │ │ ├── MainActivity.java
│ │ │ ├── OutputImageFormat.java
│ │ │ └── VideoToFrames.java
│ └── res
│ │ ├── layout
│ │ └── activity_main.xml
│ │ ├── mipmap-hdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-mdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-xhdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-xxhdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-xxxhdpi
│ │ └── ic_launcher.png
│ │ ├── values-w820dp
│ │ └── dimens.xml
│ │ └── values
│ │ ├── colors.xml
│ │ ├── dimens.xml
│ │ ├── strings.xml
│ │ └── styles.xml
│ └── test
│ └── java
│ └── com
│ └── polarxiong
│ └── videotoimages
│ └── ExampleUnitTest.java
├── build.gradle
├── gradle.properties
├── gradle
└── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
└── settings.gradle
/.gitignore:
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2 | .gradle
3 | /local.properties
4 | /.idea/workspace.xml
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7 | /build
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/README.md:
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1 | # VideoToImages
2 | 本Android APP是博客文章[Android: MediaCodec视频文件硬件解码,高效率得到YUV格式帧,快速保存JPEG图片(不使用OpenGL)(附Demo)][blog]的Demo APP。
3 |
4 | 指定输入视频文件和输出文件夹名，此APP可将视频帧保存为I420、NV21或JPEG格式。
5 |
6 | [blog]:http://www.polarxiong.com/archives/Android-MediaCodec%E8%A7%86%E9%A2%91%E6%96%87%E4%BB%B6%E7%A1%AC%E4%BB%B6%E8%A7%A3%E7%A0%81-%E9%AB%98%E6%95%88%E7%8E%87%E5%BE%97%E5%88%B0YUV%E6%A0%BC%E5%BC%8F%E5%B8%A7-%E5%BF%AB%E9%80%9F%E4%BF%9D%E5%AD%98JPEG%E5%9B%BE%E7%89%87-%E4%B8%8D%E4%BD%BF%E7%94%A8OpenGL.html
7 |
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/app/.gitignore:
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1 | /build
2 |
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/app/build.gradle:
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1 | apply plugin: 'com.android.application'
2 |
3 | android {
4 | compileSdkVersion 23
5 | buildToolsVersion "23.0.3"
6 |
7 | defaultConfig {
8 | applicationId "com.polarxiong.videotoimages"
9 | minSdkVersion 21
10 | targetSdkVersion 23
11 | versionCode 1
12 | versionName "1.0"
13 | }
14 | buildTypes {
15 | release {
16 | minifyEnabled false
17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
18 | }
19 | }
20 | }
21 |
22 | dependencies {
23 | compile fileTree(dir: 'libs', include: ['*.jar'])
24 | testCompile 'junit:junit:4.12'
25 | compile 'com.android.support:appcompat-v7:23.4.0'
26 | }
27 |
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/app/proguard-rules.pro:
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1 | # Add project specific ProGuard rules here.
2 | # By default, the flags in this file are appended to flags specified
3 | # in /Users/zhantong/Library/Android/sdk/tools/proguard/proguard-android.txt
4 | # You can edit the include path and order by changing the proguardFiles
5 | # directive in build.gradle.
6 | #
7 | # For more details, see
8 | # http://developer.android.com/guide/developing/tools/proguard.html
9 |
10 | # Add any project specific keep options here:
11 |
12 | # If your project uses WebView with JS, uncomment the following
13 | # and specify the fully qualified class name to the JavaScript interface
14 | # class:
15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
16 | # public *;
17 | #}
18 |
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/app/src/androidTest/java/com/polarxiong/videotoimages/ApplicationTest.java:
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1 | package com.polarxiong.videotoimages;
2 |
3 | import android.app.Application;
4 | import android.test.ApplicationTestCase;
5 |
6 | /**
7 | * Testing Fundamentals
8 | */
9 | public class ApplicationTest extends ApplicationTestCase {
10 | public ApplicationTest() {
11 | super(Application.class);
12 | }
13 | }
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/app/src/main/AndroidManifest.xml:
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/app/src/main/java/com/polarxiong/videotoimages/MainActivity.java:
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1 | package com.polarxiong.videotoimages;
2 |
3 | import android.Manifest;
4 | import android.app.Activity;
5 | import android.app.AlertDialog;
6 | import android.content.Intent;
7 | import android.content.pm.PackageManager;
8 | import android.database.Cursor;
9 | import android.net.Uri;
10 | import android.os.Bundle;
11 | import android.os.Environment;
12 | import android.os.Handler;
13 | import android.os.Message;
14 | import android.provider.MediaStore;
15 | import android.support.annotation.NonNull;
16 | import android.support.v4.app.ActivityCompat;
17 | import android.support.v4.content.ContextCompat;
18 | import android.view.View;
19 | import android.widget.AdapterView;
20 | import android.widget.ArrayAdapter;
21 | import android.widget.Button;
22 | import android.widget.EditText;
23 | import android.widget.Spinner;
24 | import android.widget.TextView;
25 | import android.widget.Toast;
26 |
27 | public class MainActivity extends Activity implements VideoToFrames.Callback {
28 | private static final int REQUEST_CODE_GET_FILE_PATH = 1;
29 | private static final int PERMISSION_WRITE_EXTERNAL_STORAGE = 1;
30 | private OutputImageFormat outputImageFormat;
31 | private MainActivity self = this;
32 | private String outputDir;
33 |
34 | final Handler handler = new Handler() {
35 | public void handleMessage(Message msg) {
36 | String str = (String) msg.obj;
37 | updateInfo(str);
38 | }
39 | };
40 |
41 | @Override
42 | protected void onCreate(Bundle savedInstanceState) {
43 | super.onCreate(savedInstanceState);
44 | setContentView(R.layout.activity_main);
45 |
46 | initImageFormatSpinner();
47 |
48 | final Button buttonFilePathInput = (Button) findViewById(R.id.button_file_path_input);
49 | buttonFilePathInput.setOnClickListener(new View.OnClickListener() {
50 | @Override
51 | public void onClick(View v) {
52 | if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
53 | ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, PERMISSION_WRITE_EXTERNAL_STORAGE);
54 | } else {
55 | getFilePath(REQUEST_CODE_GET_FILE_PATH);
56 | }
57 | }
58 | });
59 |
60 | final Button buttonStart = (Button) findViewById(R.id.button_start);
61 | buttonStart.setOnClickListener(new View.OnClickListener() {
62 | @Override
63 | public void onClick(View v) {
64 | EditText editTextOutputFolder = (EditText) findViewById(R.id.folder_created);
65 | outputDir = Environment.getExternalStorageDirectory() + "/" + editTextOutputFolder.getText().toString();
66 | EditText editTextInputFilePath = (EditText) findViewById(R.id.file_path_input);
67 | String inputFilePath = editTextInputFilePath.getText().toString();
68 | VideoToFrames videoToFrames = new VideoToFrames();
69 | videoToFrames.setCallback(self);
70 | try {
71 | videoToFrames.setSaveFrames(outputDir, outputImageFormat);
72 | updateInfo("运行中...");
73 | videoToFrames.decode(inputFilePath);
74 | } catch (Throwable t) {
75 | t.printStackTrace();
76 | }
77 | }
78 | });
79 | }
80 |
81 | @Override
82 | public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
83 | switch (requestCode) {
84 | case PERMISSION_WRITE_EXTERNAL_STORAGE:
85 | if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
86 | getFilePath(REQUEST_CODE_GET_FILE_PATH);
87 | } else {
88 | Toast.makeText(this, "需要开启文件读写权限", Toast.LENGTH_SHORT).show();
89 | }
90 | return;
91 | default:
92 | super.onRequestPermissionsResult(requestCode, permissions, grantResults);
93 | }
94 | }
95 |
96 | private void initImageFormatSpinner() {
97 | Spinner barcodeFormatSpinner = (Spinner) findViewById(R.id.image_format);
98 | ArrayAdapter adapter = new ArrayAdapter<>(this, android.R.layout.simple_spinner_item, OutputImageFormat.values());
99 | adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
100 | barcodeFormatSpinner.setAdapter(adapter);
101 | barcodeFormatSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
102 | @Override
103 | public void onItemSelected(AdapterView parent, View view, int position, long id) {
104 | outputImageFormat = OutputImageFormat.values()[position];
105 | }
106 |
107 | @Override
108 | public void onNothingSelected(AdapterView parent) {
109 |
110 | }
111 | });
112 | }
113 |
114 | private void getFilePath(int requestCode) {
115 | Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
116 | intent.setType("*/*");
117 | intent.addCategory(Intent.CATEGORY_OPENABLE);
118 | if (intent.resolveActivity(getPackageManager()) != null) {
119 | startActivityForResult(Intent.createChooser(intent, "选择视频文件"), requestCode);
120 | } else {
121 | new AlertDialog.Builder(this).setTitle("未找到文件管理器")
122 | .setMessage("请安装文件管理器以选择文件")
123 | .setPositiveButton("确定", null)
124 | .show();
125 | }
126 | }
127 |
128 | public void onActivityResult(int requestCode, int resultCode, Intent data) {
129 | int id = 0;
130 | switch (requestCode) {
131 | case REQUEST_CODE_GET_FILE_PATH:
132 | id = R.id.file_path_input;
133 | break;
134 | }
135 | if (resultCode == Activity.RESULT_OK) {
136 | EditText editText = (EditText) findViewById(id);
137 | String curFileName = getRealPathFromURI(data.getData());
138 | editText.setText(curFileName);
139 | }
140 | }
141 |
142 | private void updateInfo(String info) {
143 | TextView textView = (TextView) findViewById(R.id.info);
144 | textView.setText(info);
145 | }
146 |
147 | public void onDecodeFrame(int index) {
148 | Message msg = handler.obtainMessage();
149 | msg.obj = "运行中...第" + index + "帧";
150 | handler.sendMessage(msg);
151 | }
152 |
153 | public void onFinishDecode() {
154 | Message msg = handler.obtainMessage();
155 | msg.obj = "完成！所有图片已存储到" + outputDir;
156 | handler.sendMessage(msg);
157 | }
158 |
159 | private String getRealPathFromURI(Uri contentURI) {
160 | String result;
161 | String[] proj = {MediaStore.Images.Media.DATA};
162 | Cursor cursor = getContentResolver().query(contentURI, proj, null, null, null);
163 | if (cursor == null) { // Source is Dropbox or other similar local file path
164 | result = contentURI.getPath();
165 | } else {
166 | cursor.moveToFirst();
167 | int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
168 | result = cursor.getString(idx);
169 | cursor.close();
170 | }
171 | return result;
172 | }
173 | }
174 |
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/app/src/main/java/com/polarxiong/videotoimages/OutputImageFormat.java:
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1 | package com.polarxiong.videotoimages;
2 |
3 | /**
4 | * Created by zhantong on 16/9/8.
5 | */
6 | public enum OutputImageFormat {
7 | I420("I420"),
8 | NV21("NV21"),
9 | JPEG("JPEG");
10 | private String friendlyName;
11 |
12 | private OutputImageFormat(String friendlyName) {
13 | this.friendlyName = friendlyName;
14 | }
15 |
16 | public String toString() {
17 | return friendlyName;
18 | }
19 | }
20 |
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/app/src/main/java/com/polarxiong/videotoimages/VideoToFrames.java:
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1 | package com.polarxiong.videotoimages;
2 |
3 | import android.graphics.ImageFormat;
4 | import android.graphics.Rect;
5 | import android.graphics.YuvImage;
6 | import android.media.Image;
7 | import android.media.MediaCodec;
8 | import android.media.MediaCodecInfo;
9 | import android.media.MediaExtractor;
10 | import android.media.MediaFormat;
11 | import android.util.Log;
12 |
13 | import java.io.File;
14 | import java.io.FileOutputStream;
15 | import java.io.IOException;
16 | import java.nio.ByteBuffer;
17 | import java.util.concurrent.LinkedBlockingQueue;
18 |
19 | /**
20 | * Created by zhantong on 16/5/12.
21 | */
22 | public class VideoToFrames implements Runnable {
23 | private static final String TAG = "VideoToFrames";
24 | private static final boolean VERBOSE = false;
25 | private static final long DEFAULT_TIMEOUT_US = 10000;
26 |
27 | private static final int COLOR_FormatI420 = 1;
28 | private static final int COLOR_FormatNV21 = 2;
29 |
30 |
31 | private final int decodeColorFormat = MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Flexible;
32 |
33 | private LinkedBlockingQueue mQueue;
34 | private OutputImageFormat outputImageFormat;
35 | private String OUTPUT_DIR;
36 | private boolean stopDecode = false;
37 |
38 | private String videoFilePath;
39 | private Throwable throwable;
40 | private Thread childThread;
41 |
42 | private Callback callback;
43 |
44 | public interface Callback {
45 | void onFinishDecode();
46 |
47 | void onDecodeFrame(int index);
48 | }
49 |
50 | public void setCallback(Callback callback) {
51 | this.callback = callback;
52 | }
53 |
54 | public void setEnqueue(LinkedBlockingQueue queue) {
55 | mQueue = queue;
56 | }
57 |
58 | public void setSaveFrames(String dir, OutputImageFormat imageFormat) throws IOException {
59 | outputImageFormat = imageFormat;
60 | File theDir = new File(dir);
61 | if (!theDir.exists()) {
62 | theDir.mkdirs();
63 | } else if (!theDir.isDirectory()) {
64 | throw new IOException("Not a directory");
65 | }
66 | OUTPUT_DIR = theDir.getAbsolutePath() + "/";
67 | }
68 |
69 | public void stopDecode() {
70 | stopDecode = true;
71 | }
72 |
73 | public void decode(String videoFilePath) throws Throwable {
74 | this.videoFilePath = videoFilePath;
75 | if (childThread == null) {
76 | childThread = new Thread(this, "decode");
77 | childThread.start();
78 | if (throwable != null) {
79 | throw throwable;
80 | }
81 | }
82 | }
83 |
84 | public void run() {
85 | try {
86 | videoDecode(videoFilePath);
87 | } catch (Throwable t) {
88 | throwable = t;
89 | }
90 | }
91 |
92 | public void videoDecode(String videoFilePath) throws IOException {
93 | MediaExtractor extractor = null;
94 | MediaCodec decoder = null;
95 | try {
96 | File videoFile = new File(videoFilePath);
97 | extractor = new MediaExtractor();
98 | extractor.setDataSource(videoFile.toString());
99 | int trackIndex = selectTrack(extractor);
100 | if (trackIndex < 0) {
101 | throw new RuntimeException("No video track found in " + videoFilePath);
102 | }
103 | extractor.selectTrack(trackIndex);
104 | MediaFormat mediaFormat = extractor.getTrackFormat(trackIndex);
105 | String mime = mediaFormat.getString(MediaFormat.KEY_MIME);
106 | decoder = MediaCodec.createDecoderByType(mime);
107 | showSupportedColorFormat(decoder.getCodecInfo().getCapabilitiesForType(mime));
108 | if (isColorFormatSupported(decodeColorFormat, decoder.getCodecInfo().getCapabilitiesForType(mime))) {
109 | mediaFormat.setInteger(MediaFormat.KEY_COLOR_FORMAT, decodeColorFormat);
110 | Log.i(TAG, "set decode color format to type " + decodeColorFormat);
111 | } else {
112 | Log.i(TAG, "unable to set decode color format, color format type " + decodeColorFormat + " not supported");
113 | }
114 | decodeFramesToImage(decoder, extractor, mediaFormat);
115 | decoder.stop();
116 | } finally {
117 | if (decoder != null) {
118 | decoder.stop();
119 | decoder.release();
120 | decoder = null;
121 | }
122 | if (extractor != null) {
123 | extractor.release();
124 | extractor = null;
125 | }
126 | }
127 | }
128 |
129 | private void showSupportedColorFormat(MediaCodecInfo.CodecCapabilities caps) {
130 | System.out.print("supported color format: ");
131 | for (int c : caps.colorFormats) {
132 | System.out.print(c + "\t");
133 | }
134 | System.out.println();
135 | }
136 |
137 | private boolean isColorFormatSupported(int colorFormat, MediaCodecInfo.CodecCapabilities caps) {
138 | for (int c : caps.colorFormats) {
139 | if (c == colorFormat) {
140 | return true;
141 | }
142 | }
143 | return false;
144 | }
145 |
146 | private void decodeFramesToImage(MediaCodec decoder, MediaExtractor extractor, MediaFormat mediaFormat) {
147 | MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
148 | boolean sawInputEOS = false;
149 | boolean sawOutputEOS = false;
150 | decoder.configure(mediaFormat, null, null, 0);
151 | decoder.start();
152 | final int width = mediaFormat.getInteger(MediaFormat.KEY_WIDTH);
153 | final int height = mediaFormat.getInteger(MediaFormat.KEY_HEIGHT);
154 | int outputFrameCount = 0;
155 | while (!sawOutputEOS && !stopDecode) {
156 | if (!sawInputEOS) {
157 | int inputBufferId = decoder.dequeueInputBuffer(DEFAULT_TIMEOUT_US);
158 | if (inputBufferId >= 0) {
159 | ByteBuffer inputBuffer = decoder.getInputBuffer(inputBufferId);
160 | int sampleSize = extractor.readSampleData(inputBuffer, 0);
161 | if (sampleSize < 0) {
162 | decoder.queueInputBuffer(inputBufferId, 0, 0, 0L, MediaCodec.BUFFER_FLAG_END_OF_STREAM);
163 | sawInputEOS = true;
164 | } else {
165 | long presentationTimeUs = extractor.getSampleTime();
166 | decoder.queueInputBuffer(inputBufferId, 0, sampleSize, presentationTimeUs, 0);
167 | extractor.advance();
168 | }
169 | }
170 | }
171 | int outputBufferId = decoder.dequeueOutputBuffer(info, DEFAULT_TIMEOUT_US);
172 | if (outputBufferId >= 0) {
173 | if ((info.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {
174 | sawOutputEOS = true;
175 | }
176 | boolean doRender = (info.size != 0);
177 | if (doRender) {
178 | outputFrameCount++;
179 | if (callback != null) {
180 | callback.onDecodeFrame(outputFrameCount);
181 | }
182 | Image image = decoder.getOutputImage(outputBufferId);
183 | //System.out.println("image format: " + image.getFormat());
184 |
185 | ByteBuffer buffer = image.getPlanes()[0].getBuffer();
186 | byte[] arr = new byte[buffer.remaining()];
187 | buffer.get(arr);
188 | if (mQueue != null) {
189 | try {
190 | mQueue.put(arr);
191 | } catch (InterruptedException e) {
192 | e.printStackTrace();
193 | }
194 | }
195 |
196 | if (outputImageFormat != null) {
197 | String fileName;
198 | switch (outputImageFormat) {
199 | case I420:
200 | fileName = OUTPUT_DIR + String.format("frame_%05d_I420_%dx%d.yuv", outputFrameCount, width, height);
201 | dumpFile(fileName, getDataFromImage(image, COLOR_FormatI420));
202 | break;
203 | case NV21:
204 | fileName = OUTPUT_DIR + String.format("frame_%05d_NV21_%dx%d.yuv", outputFrameCount, width, height);
205 | dumpFile(fileName, getDataFromImage(image, COLOR_FormatNV21));
206 | break;
207 | case JPEG:
208 | fileName = OUTPUT_DIR + String.format("frame_%05d.jpg", outputFrameCount);
209 | compressToJpeg(fileName, image);
210 | break;
211 | }
212 | }
213 | image.close();
214 | decoder.releaseOutputBuffer(outputBufferId, true);
215 | }
216 | }
217 | }
218 | if (callback != null) {
219 | callback.onFinishDecode();
220 | }
221 | }
222 |
223 | private static int selectTrack(MediaExtractor extractor) {
224 | int numTracks = extractor.getTrackCount();
225 | for (int i = 0; i < numTracks; i++) {
226 | MediaFormat format = extractor.getTrackFormat(i);
227 | String mime = format.getString(MediaFormat.KEY_MIME);
228 | if (mime.startsWith("video/")) {
229 | if (VERBOSE) {
230 | Log.d(TAG, "Extractor selected track " + i + " (" + mime + "): " + format);
231 | }
232 | return i;
233 | }
234 | }
235 | return -1;
236 | }
237 |
238 | private static boolean isImageFormatSupported(Image image) {
239 | int format = image.getFormat();
240 | switch (format) {
241 | case ImageFormat.YUV_420_888:
242 | case ImageFormat.NV21:
243 | case ImageFormat.YV12:
244 | return true;
245 | }
246 | return false;
247 | }
248 |
249 | private static byte[] getDataFromImage(Image image, int colorFormat) {
250 | if (colorFormat != COLOR_FormatI420 && colorFormat != COLOR_FormatNV21) {
251 | throw new IllegalArgumentException("only support COLOR_FormatI420 " + "and COLOR_FormatNV21");
252 | }
253 | if (!isImageFormatSupported(image)) {
254 | throw new RuntimeException("can't convert Image to byte array, format " + image.getFormat());
255 | }
256 | Rect crop = image.getCropRect();
257 | int format = image.getFormat();
258 | int width = crop.width();
259 | int height = crop.height();
260 | Image.Plane[] planes = image.getPlanes();
261 | byte[] data = new byte[width * height * ImageFormat.getBitsPerPixel(format) / 8];
262 | byte[] rowData = new byte[planes[0].getRowStride()];
263 | if (VERBOSE) Log.v(TAG, "get data from " + planes.length + " planes");
264 | int channelOffset = 0;
265 | int outputStride = 1;
266 | for (int i = 0; i < planes.length; i++) {
267 | switch (i) {
268 | case 0:
269 | channelOffset = 0;
270 | outputStride = 1;
271 | break;
272 | case 1:
273 | if (colorFormat == COLOR_FormatI420) {
274 | channelOffset = width * height;
275 | outputStride = 1;
276 | } else if (colorFormat == COLOR_FormatNV21) {
277 | channelOffset = width * height + 1;
278 | outputStride = 2;
279 | }
280 | break;
281 | case 2:
282 | if (colorFormat == COLOR_FormatI420) {
283 | channelOffset = (int) (width * height * 1.25);
284 | outputStride = 1;
285 | } else if (colorFormat == COLOR_FormatNV21) {
286 | channelOffset = width * height;
287 | outputStride = 2;
288 | }
289 | break;
290 | }
291 | ByteBuffer buffer = planes[i].getBuffer();
292 | int rowStride = planes[i].getRowStride();
293 | int pixelStride = planes[i].getPixelStride();
294 | if (VERBOSE) {
295 | Log.v(TAG, "pixelStride " + pixelStride);
296 | Log.v(TAG, "rowStride " + rowStride);
297 | Log.v(TAG, "width " + width);
298 | Log.v(TAG, "height " + height);
299 | Log.v(TAG, "buffer size " + buffer.remaining());
300 | }
301 | int shift = (i == 0) ? 0 : 1;
302 | int w = width >> shift;
303 | int h = height >> shift;
304 | buffer.position(rowStride * (crop.top >> shift) + pixelStride * (crop.left >> shift));
305 | for (int row = 0; row < h; row++) {
306 | int length;
307 | if (pixelStride == 1 && outputStride == 1) {
308 | length = w;
309 | buffer.get(data, channelOffset, length);
310 | channelOffset += length;
311 | } else {
312 | length = (w - 1) * pixelStride + 1;
313 | buffer.get(rowData, 0, length);
314 | for (int col = 0; col < w; col++) {
315 | data[channelOffset] = rowData[col * pixelStride];
316 | channelOffset += outputStride;
317 | }
318 | }
319 | if (row < h - 1) {
320 | buffer.position(buffer.position() + rowStride - length);
321 | }
322 | }
323 | if (VERBOSE) Log.v(TAG, "Finished reading data from plane " + i);
324 | }
325 | return data;
326 | }
327 |
328 | private static void dumpFile(String fileName, byte[] data) {
329 | FileOutputStream outStream;
330 | try {
331 | outStream = new FileOutputStream(fileName);
332 | } catch (IOException ioe) {
333 | throw new RuntimeException("Unable to create output file " + fileName, ioe);
334 | }
335 | try {
336 | outStream.write(data);
337 | outStream.close();
338 | } catch (IOException ioe) {
339 | throw new RuntimeException("failed writing data to file " + fileName, ioe);
340 | }
341 | }
342 |
343 | private void compressToJpeg(String fileName, Image image) {
344 | FileOutputStream outStream;
345 | try {
346 | outStream = new FileOutputStream(fileName);
347 | } catch (IOException ioe) {
348 | throw new RuntimeException("Unable to create output file " + fileName, ioe);
349 | }
350 | Rect rect = image.getCropRect();
351 | YuvImage yuvImage = new YuvImage(getDataFromImage(image, COLOR_FormatNV21), ImageFormat.NV21, rect.width(), rect.height(), null);
352 | yuvImage.compressToJpeg(rect, 100, outStream);
353 | }
354 | }
355 |
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/app/src/main/res/layout/activity_main.xml:
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1 |
2 |
8 |
11 |
17 |
23 |
30 |
31 |
34 |
40 |
45 |
46 |
49 |
55 |
60 |
61 |
65 |
71 |
72 |
76 |
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/app/src/main/res/mipmap-hdpi/ic_launcher.png:
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https://raw.githubusercontent.com/zhantong/Android-VideoToImages/46c1114e4dd58c134ff8c99a0cf2af2ba3a645fc/app/src/main/res/mipmap-hdpi/ic_launcher.png
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/app/src/main/res/mipmap-mdpi/ic_launcher.png:
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https://raw.githubusercontent.com/zhantong/Android-VideoToImages/46c1114e4dd58c134ff8c99a0cf2af2ba3a645fc/app/src/main/res/mipmap-mdpi/ic_launcher.png
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/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/zhantong/Android-VideoToImages/46c1114e4dd58c134ff8c99a0cf2af2ba3a645fc/app/src/main/res/mipmap-xhdpi/ic_launcher.png
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/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/zhantong/Android-VideoToImages/46c1114e4dd58c134ff8c99a0cf2af2ba3a645fc/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
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/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/zhantong/Android-VideoToImages/46c1114e4dd58c134ff8c99a0cf2af2ba3a645fc/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
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/app/src/main/res/values-w820dp/dimens.xml:
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1 |
2 |
5 | 64dp
6 |
7 |
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/app/src/main/res/values/colors.xml:
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1 |
2 |
3 | #3F51B5
4 | #303F9F
5 | #FF4081
6 | #BEBEBE
7 |
8 |
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/app/src/main/res/values/dimens.xml:
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1 |
2 |
3 | 16dp
4 | 16dp
5 |
6 |
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/app/src/main/res/values/strings.xml:
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1 |
2 | VideoToImages
3 | 视频文件路径
4 | 选择视频文件
5 | 生成文件夹名
6 | 生成图片格式
7 | 开始
8 |
9 |
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/app/src/main/res/values/styles.xml:
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1 |
2 |
3 |
4 |
10 |
11 |
12 |
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/app/src/test/java/com/polarxiong/videotoimages/ExampleUnitTest.java:
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1 | package com.polarxiong.videotoimages;
2 |
3 | import org.junit.Test;
4 |
5 | import static org.junit.Assert.*;
6 |
7 | /**
8 | * To work on unit tests, switch the Test Artifact in the Build Variants view.
9 | */
10 | public class ExampleUnitTest {
11 | @Test
12 | public void addition_isCorrect() throws Exception {
13 | assertEquals(4, 2 + 2);
14 | }
15 | }
--------------------------------------------------------------------------------
/build.gradle:
--------------------------------------------------------------------------------
1 | // Top-level build file where you can add configuration options common to all sub-projects/modules.
2 |
3 | buildscript {
4 | repositories {
5 | jcenter()
6 | }
7 | dependencies {
8 | classpath 'com.android.tools.build:gradle:2.1.3'
9 |
10 | // NOTE: Do not place your application dependencies here; they belong
11 | // in the individual module build.gradle files
12 | }
13 | }
14 |
15 | allprojects {
16 | repositories {
17 | jcenter()
18 | }
19 | }
20 |
21 | task clean(type: Delete) {
22 | delete rootProject.buildDir
23 | }
24 |
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/gradle.properties:
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1 | # Project-wide Gradle settings.
2 |
3 | # IDE (e.g. Android Studio) users:
4 | # Gradle settings configured through the IDE *will override*
5 | # any settings specified in this file.
6 |
7 | # For more details on how to configure your build environment visit
8 | # http://www.gradle.org/docs/current/userguide/build_environment.html
9 |
10 | # Specifies the JVM arguments used for the daemon process.
11 | # The setting is particularly useful for tweaking memory settings.
12 | # Default value: -Xmx10248m -XX:MaxPermSize=256m
13 | # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
14 |
15 | # When configured, Gradle will run in incubating parallel mode.
16 | # This option should only be used with decoupled projects. More details, visit
17 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
18 | # org.gradle.parallel=true
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/gradle/wrapper/gradle-wrapper.jar:
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https://raw.githubusercontent.com/zhantong/Android-VideoToImages/46c1114e4dd58c134ff8c99a0cf2af2ba3a645fc/gradle/wrapper/gradle-wrapper.jar
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/gradle/wrapper/gradle-wrapper.properties:
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1 | #Thu Sep 08 14:50:38 CST 2016
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 | distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
7 |
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/gradlew:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env bash
2 |
3 | ##############################################################################
4 | ##
5 | ## Gradle start up script for UN*X
6 | ##
7 | ##############################################################################
8 |
9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
10 | DEFAULT_JVM_OPTS=""
11 |
12 | APP_NAME="Gradle"
13 | APP_BASE_NAME=`basename "$0"`
14 |
15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
16 | MAX_FD="maximum"
17 |
18 | warn ( ) {
19 | echo "$*"
20 | }
21 |
22 | die ( ) {
23 | echo
24 | echo "$*"
25 | echo
26 | exit 1
27 | }
28 |
29 | # OS specific support (must be 'true' or 'false').
30 | cygwin=false
31 | msys=false
32 | darwin=false
33 | case "`uname`" in
34 | CYGWIN* )
35 | cygwin=true
36 | ;;
37 | Darwin* )
38 | darwin=true
39 | ;;
40 | MINGW* )
41 | msys=true
42 | ;;
43 | esac
44 |
45 | # Attempt to set APP_HOME
46 | # Resolve links: $0 may be a link
47 | PRG="$0"
48 | # Need this for relative symlinks.
49 | while [ -h "$PRG" ] ; do
50 | ls=`ls -ld "$PRG"`
51 | link=`expr "$ls" : '.*-> \(.*\)$'`
52 | if expr "$link" : '/.*' > /dev/null; then
53 | PRG="$link"
54 | else
55 | PRG=`dirname "$PRG"`"/$link"
56 | fi
57 | done
58 | SAVED="`pwd`"
59 | cd "`dirname \"$PRG\"`/" >/dev/null
60 | APP_HOME="`pwd -P`"
61 | cd "$SAVED" >/dev/null
62 |
63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
64 |
65 | # Determine the Java command to use to start the JVM.
66 | if [ -n "$JAVA_HOME" ] ; then
67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
68 | # IBM's JDK on AIX uses strange locations for the executables
69 | JAVACMD="$JAVA_HOME/jre/sh/java"
70 | else
71 | JAVACMD="$JAVA_HOME/bin/java"
72 | fi
73 | if [ ! -x "$JAVACMD" ] ; then
74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
75 |
76 | Please set the JAVA_HOME variable in your environment to match the
77 | location of your Java installation."
78 | fi
79 | else
80 | JAVACMD="java"
81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
82 |
83 | Please set the JAVA_HOME variable in your environment to match the
84 | location of your Java installation."
85 | fi
86 |
87 | # Increase the maximum file descriptors if we can.
88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
89 | MAX_FD_LIMIT=`ulimit -H -n`
90 | if [ $? -eq 0 ] ; then
91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
92 | MAX_FD="$MAX_FD_LIMIT"
93 | fi
94 | ulimit -n $MAX_FD
95 | if [ $? -ne 0 ] ; then
96 | warn "Could not set maximum file descriptor limit: $MAX_FD"
97 | fi
98 | else
99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
100 | fi
101 | fi
102 |
103 | # For Darwin, add options to specify how the application appears in the dock
104 | if $darwin; then
105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
106 | fi
107 |
108 | # For Cygwin, switch paths to Windows format before running java
109 | if $cygwin ; then
110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
112 | JAVACMD=`cygpath --unix "$JAVACMD"`
113 |
114 | # We build the pattern for arguments to be converted via cygpath
115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
116 | SEP=""
117 | for dir in $ROOTDIRSRAW ; do
118 | ROOTDIRS="$ROOTDIRS$SEP$dir"
119 | SEP="|"
120 | done
121 | OURCYGPATTERN="(^($ROOTDIRS))"
122 | # Add a user-defined pattern to the cygpath arguments
123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
125 | fi
126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
127 | i=0
128 | for arg in "$@" ; do
129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
131 |
132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
134 | else
135 | eval `echo args$i`="\"$arg\""
136 | fi
137 | i=$((i+1))
138 | done
139 | case $i in
140 | (0) set -- ;;
141 | (1) set -- "$args0" ;;
142 | (2) set -- "$args0" "$args1" ;;
143 | (3) set -- "$args0" "$args1" "$args2" ;;
144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
150 | esac
151 | fi
152 |
153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
154 | function splitJvmOpts() {
155 | JVM_OPTS=("$@")
156 | }
157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
159 |
160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
161 |
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/gradlew.bat:
--------------------------------------------------------------------------------
1 | @if "%DEBUG%" == "" @echo off
2 | @rem ##########################################################################
3 | @rem
4 | @rem Gradle startup script for Windows
5 | @rem
6 | @rem ##########################################################################
7 |
8 | @rem Set local scope for the variables with windows NT shell
9 | if "%OS%"=="Windows_NT" setlocal
10 |
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 |
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 |
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 |
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 |
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 |
32 | goto fail
33 |
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 |
38 | if exist "%JAVA_EXE%" goto init
39 |
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 |
46 | goto fail
47 |
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 |
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 |
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 |
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 |
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 |
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 |
69 | :execute
70 | @rem Setup the command line
71 |
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 |
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 |
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 |
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 |
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 |
90 | :omega
91 |
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/settings.gradle:
--------------------------------------------------------------------------------
1 | include ':app'
2 |
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