colorFormats = new HashSet<>();
249 | for(int i : capabilities.colorFormats) colorFormats.add(i);
250 | if(colorFormats.contains(MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420SemiPlanar)) return MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420SemiPlanar;
251 | if(colorFormats.contains(MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Planar)) return MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Planar;
252 | return 0;
253 | }
254 |
255 | }
256 |
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/Application/src/main/java/cc/rome753/encodemp4/MediaMuxerUtil.java:
--------------------------------------------------------------------------------
1 | package cc.rome753.encodemp4;
2 |
3 | import android.media.MediaCodec;
4 | import android.media.MediaFormat;
5 | import android.media.MediaMuxer;
6 | import android.util.Log;
7 |
8 | import java.io.IOException;
9 | import java.nio.ByteBuffer;
10 | import java.util.LinkedList;
11 | import java.util.Queue;
12 |
13 | /**
14 | * Mp4封装混合器
15 | *
16 | * Created by chao on 2017/7/28.
17 | */
18 |
19 | public class MediaMuxerUtil {
20 | private static final String TAG = MediaMuxerUtil.class.getSimpleName();
21 | private MediaMuxer mMuxer;
22 | private final long durationMillis;
23 | private int mVideoTrackIndex = -1;
24 | private int mAudioTrackIndex = -1;
25 | private long mBeginMillis;
26 |
27 | // 文件路径；文件时长
28 | public MediaMuxerUtil(String path, long durationMillis) {
29 | this.durationMillis = durationMillis;
30 | try {
31 | mMuxer = new MediaMuxer(path, MediaMuxer.OutputFormat.MUXER_OUTPUT_MPEG_4);
32 | } catch (IOException e) {
33 | e.printStackTrace();
34 | }
35 | }
36 |
37 | public synchronized void addTrack(MediaFormat format, boolean isVideo) {
38 | if(mMuxer == null) {
39 | return;
40 | }
41 | if (mAudioTrackIndex != -1 && mVideoTrackIndex != -1) {
42 | return;
43 | }
44 |
45 | int track = mMuxer.addTrack(format);
46 | Log.i(TAG, String.format("addTrack %s result %d", isVideo ? "video" : "audio", track));
47 | if (isVideo) {
48 | mVideoTrackIndex = track;
49 | if (mAudioTrackIndex != -1) {
50 | Log.i(TAG, "both audio and video added,and muxer is started");
51 | mMuxer.start();
52 | mBeginMillis = System.currentTimeMillis();
53 | }
54 | } else {
55 | mAudioTrackIndex = track;
56 | if (mVideoTrackIndex != -1) {
57 | mMuxer.start();
58 | mBeginMillis = System.currentTimeMillis();
59 | }
60 | }
61 | }
62 |
63 | public synchronized void pumpStream(ByteBuffer outputBuffer, MediaCodec.BufferInfo bufferInfo, boolean isVideo) {
64 | if (mBeginMillis > 0) {
65 | try {
66 | pump(outputBuffer, bufferInfo, isVideo);
67 | }catch (Exception e) {
68 | e.printStackTrace();
69 | }
70 | }
71 | }
72 |
73 | private void pump(ByteBuffer outputBuffer, MediaCodec.BufferInfo bufferInfo, boolean isVideo) {
74 | if(mMuxer == null) {
75 | return;
76 | }
77 | if (mAudioTrackIndex == -1 || mVideoTrackIndex == -1) {
78 | return;
79 | }
80 | if ((bufferInfo.flags & MediaCodec.BUFFER_FLAG_CODEC_CONFIG) != 0) {
81 | // The codec config data was pulled out and fed to the muxer when we got
82 | // the INFO_OUTPUT_FORMAT_CHANGED status. Ignore it.
83 | } else if (bufferInfo.size != 0) {
84 |
85 | outputBuffer.position(bufferInfo.offset);
86 | outputBuffer.limit(bufferInfo.offset + bufferInfo.size);
87 |
88 | mMuxer.writeSampleData(isVideo ? mVideoTrackIndex : mAudioTrackIndex, outputBuffer, bufferInfo);
89 | Log.d(TAG, String.format("sent %s [" + bufferInfo.size + "] with timestamp:[%d] to muxer", isVideo ? "video" : "audio", bufferInfo.presentationTimeUs / 1000));
90 | }
91 |
92 | if ((bufferInfo.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {
93 | Log.i(TAG, "BUFFER_FLAG_END_OF_STREAM received");
94 | }
95 |
96 | if (System.currentTimeMillis() - mBeginMillis >= durationMillis) {
97 | mMuxer.stop();
98 | mMuxer.release();
99 | mMuxer = null;
100 | mVideoTrackIndex = mAudioTrackIndex = -1;
101 | }
102 | }
103 |
104 | public synchronized void release() {
105 | if (mMuxer != null) {
106 | if (mAudioTrackIndex != -1 && mVideoTrackIndex != -1) {
107 | Log.i(TAG, String.format("muxer is started. now it will be stoped."));
108 | try {
109 | mMuxer.stop();
110 | mMuxer.release();
111 | } catch (IllegalStateException ex) {
112 | ex.printStackTrace();
113 | }
114 |
115 | mAudioTrackIndex = mVideoTrackIndex = -1;
116 | } else {
117 | Log.i(TAG, String.format("muxer is failed to be stoped."));
118 | }
119 | }
120 | }
121 | }
122 |
--------------------------------------------------------------------------------
/Application/src/main/java/cc/rome753/encodemp4/VideoRecorder.java:
--------------------------------------------------------------------------------
1 | package cc.rome753.encodemp4;
2 |
3 | import java.nio.ByteBuffer;
4 |
5 | /**
6 | * Created by chao on 19-4-10.
7 | */
8 |
9 | public class VideoRecorder {
10 |
11 | private AACEncodeConsumer mAacConsumer;
12 | private H264EncodeConsumer mH264Consumer;
13 | private MediaMuxerUtil mMuxer;
14 |
15 | private String filePath;
16 |
17 |
18 | public VideoRecorder(String filePath) {
19 | this.filePath = filePath;
20 | }
21 |
22 |
23 | private EncoderParams setEncodeParams() {
24 | EncoderParams params = new EncoderParams();
25 | params.setVideoPath(filePath); // 视频文件路径
26 | params.setFrameWidth(640); // 分辨率
27 | params.setFrameHeight(480);
28 | params.setBitRate(600000); // 视频编码码率
29 | params.setFrameRate(30);// 视频编码帧率
30 | params.setAudioBitrate(44100); // 音频比特率
31 | params.setAudioSampleRate(AACEncodeConsumer.DEFAULT_SAMPLE_RATE); // 音频采样率
32 | params.setAudioChannelConfig(AACEncodeConsumer.CHANNEL_IN_MONO);// 单声道
33 | params.setAudioChannelCount(AACEncodeConsumer.CHANNEL_COUNT_MONO); // 单声道通道数量
34 | params.setAudioFormat(AACEncodeConsumer.ENCODING_PCM_16BIT); // 采样精度为16位
35 | return params;
36 | }
37 |
38 |
39 | public void addAudioData(byte[] buffer) {
40 | if (mAacConsumer != null) {
41 | try {
42 | mAacConsumer.addData(ByteBuffer.wrap(buffer), buffer.length);
43 | } catch (Exception e) {
44 | e.printStackTrace();
45 | }
46 | }
47 | }
48 |
49 | public void addVideoData(byte[] frame) {
50 | if(mH264Consumer != null) {
51 | try {
52 | mH264Consumer.addData(frame);
53 | } catch (Exception e) {
54 | e.printStackTrace();
55 | }
56 | }
57 | }
58 |
59 | public void start() {
60 | EncoderParams params = setEncodeParams();
61 | // 创建音视频编码线程
62 | mH264Consumer = new H264EncodeConsumer();
63 | mAacConsumer = new AACEncodeConsumer();
64 | mMuxer = new MediaMuxerUtil(params.getVideoPath(), 1000000);
65 | if (mH264Consumer != null) {
66 | mH264Consumer.setTmpuMuxer(mMuxer,params);
67 | }
68 | if (mAacConsumer != null) {
69 | mAacConsumer.setTmpuMuxer(mMuxer,params);
70 | }
71 | // 配置好混合器后启动线程
72 | mH264Consumer.start();
73 | mAacConsumer.start();
74 |
75 | }
76 |
77 | public void stop() {
78 | // 停止混合器
79 | if (mMuxer != null) {
80 | mMuxer.release();
81 | mMuxer = null;
82 | }
83 | if (mH264Consumer != null) {
84 | mH264Consumer.setTmpuMuxer(null,null);
85 | }
86 | if (mAacConsumer != null) {
87 | mAacConsumer.setTmpuMuxer(null,null);
88 | }
89 | // 停止视频编码线程
90 | if (mH264Consumer != null) {
91 | mH264Consumer.exit();
92 | try {
93 | Thread t2 = mH264Consumer;
94 | mH264Consumer = null;
95 | if (t2 != null) {
96 | t2.interrupt();
97 | t2.join();
98 | }
99 | } catch (InterruptedException e) {
100 | e.printStackTrace();
101 | }
102 | }
103 | // 停止音频编码线程
104 | if (mAacConsumer != null) {
105 | mAacConsumer.exit();
106 | try {
107 | Thread t1 = mAacConsumer;
108 | mAacConsumer = null;
109 | if (t1 != null) {
110 | t1.interrupt();
111 | t1.join();
112 | }
113 | } catch (InterruptedException e) {
114 | e.printStackTrace();
115 | }
116 | }
117 |
118 | }
119 |
120 | }
121 |
--------------------------------------------------------------------------------
/Application/src/main/java/cc/rome753/encodemp4/YUVTools.java:
--------------------------------------------------------------------------------
1 | package cc.rome753.encodemp4;
2 |
3 | import android.graphics.Bitmap;
4 | import android.media.Image;
5 | import android.media.ImageReader;
6 |
7 | import java.nio.ByteBuffer;
8 |
9 | public class YUVTools {
10 |
11 | /******************************* YUV420旋转算法 *******************************/
12 |
13 | // I420或YV12顺时针旋转
14 | public static void rotateP(byte[] src, byte[] dest, int w, int h, int rotation) {
15 | switch (rotation) {
16 | case 0:
17 | System.arraycopy(src, 0, dest, 0, src.length);
18 | break;
19 | case 90:
20 | rotateP90(src, dest, w, h);
21 | break;
22 | case 180:
23 | rotateP180(src, dest, w, h);
24 | break;
25 | case 270:
26 | rotateP270(src, dest, w, h);
27 | break;
28 | }
29 | }
30 |
31 | // NV21或NV12顺时针旋转
32 | public static void rotateSP(byte[] src, byte[] dest, int w, int h, int rotation) {
33 | switch (rotation) {
34 | case 0:
35 | System.arraycopy(src, 0, dest, 0, src.length);
36 | break;
37 | case 90:
38 | rotateSP90(src, dest, w, h);
39 | break;
40 | case 180:
41 | rotateSP180(src, dest, w, h);
42 | break;
43 | case 270:
44 | rotateSP270(src, dest, w, h);
45 | break;
46 | }
47 | }
48 |
49 | // NV21或NV12顺时针旋转90度
50 | public static void rotateSP90(byte[] src, byte[] dest, int w, int h) {
51 | int pos = 0;
52 | int k = 0;
53 | for (int i = 0; i <= w - 1; i++) {
54 | for (int j = h - 1; j >= 0; j--) {
55 | dest[k++] = src[j * w + i];
56 | }
57 | }
58 |
59 | pos = w * h;
60 | for (int i = 0; i <= w - 2; i += 2) {
61 | for (int j = h / 2 - 1; j >= 0; j--) {
62 | dest[k++] = src[pos + j * w + i];
63 | dest[k++] = src[pos + j * w + i + 1];
64 | }
65 | }
66 | }
67 |
68 | // NV21或NV12顺时针旋转270度
69 | public static void rotateSP270(byte[] src, byte[] dest, int w, int h) {
70 | int pos = 0;
71 | int k = 0;
72 | for (int i = w - 1; i >= 0; i--) {
73 | for (int j = 0; j <= h - 1; j++) {
74 | dest[k++] = src[j * w + i];
75 | }
76 | }
77 |
78 | pos = w * h;
79 | for (int i = w - 2; i >= 0; i -= 2) {
80 | for (int j = 0; j <= h / 2 - 1; j++) {
81 | dest[k++] = src[pos + j * w + i];
82 | dest[k++] = src[pos + j * w + i + 1];
83 | }
84 | }
85 | }
86 |
87 | // NV21或NV12顺时针旋转180度
88 | public static void rotateSP180(byte[] src, byte[] dest, int w, int h) {
89 | int pos = 0;
90 | int k = w * h - 1;
91 | while (k >= 0) {
92 | dest[pos++] = src[k--];
93 | }
94 |
95 | k = src.length - 2;
96 | while (pos < dest.length) {
97 | dest[pos++] = src[k];
98 | dest[pos++] = src[k + 1];
99 | k -= 2;
100 | }
101 | }
102 |
103 | // I420或YV12顺时针旋转90度
104 | public static void rotateP90(byte[] src, byte[] dest, int w, int h) {
105 | int pos = 0;
106 | //旋转Y
107 | int k = 0;
108 | for (int i = 0; i < w; i++) {
109 | for (int j = h - 1; j >= 0; j--) {
110 | dest[k++] = src[j * w + i];
111 | }
112 | }
113 | //旋转U
114 | pos = w * h;
115 | for (int i = 0; i < w / 2; i++) {
116 | for (int j = h / 2 - 1; j >= 0; j--) {
117 | dest[k++] = src[pos + j * w / 2 + i];
118 | }
119 | }
120 |
121 | //旋转V
122 | pos = w * h * 5 / 4;
123 | for (int i = 0; i < w / 2; i++) {
124 | for (int j = h / 2 - 1; j >= 0; j--) {
125 | dest[k++] = src[pos + j * w / 2 + i];
126 | }
127 | }
128 | }
129 |
130 | // I420或YV12顺时针旋转270度
131 | public static void rotateP270(byte[] src, byte[] dest, int w, int h) {
132 | int pos = 0;
133 | //旋转Y
134 | int k = 0;
135 | for (int i = w - 1; i >= 0; i--) {
136 | for (int j = 0; j < h; j++) {
137 | dest[k++] = src[j * w + i];
138 | }
139 | }
140 | //旋转U
141 | pos = w * h;
142 | for (int i = w / 2 - 1; i >= 0; i--) {
143 | for (int j = 0; j < h / 2; j++) {
144 | dest[k++] = src[pos + j * w / 2 + i];
145 | }
146 | }
147 |
148 | //旋转V
149 | pos = w * h * 5 / 4;
150 | for (int i = w / 2 - 1; i >= 0; i--) {
151 | for (int j = 0; j < h / 2; j++) {
152 | dest[k++] = src[pos + j * w / 2 + i];
153 | }
154 | }
155 | }
156 |
157 | // I420或YV12顺时针旋转180度
158 | public static void rotateP180(byte[] src, byte[] dest, int w, int h) {
159 | int pos = 0;
160 | int k = w * h - 1;
161 | while (k >= 0) {
162 | dest[pos++] = src[k--];
163 | }
164 |
165 | k = w * h * 5 / 4;
166 | while (k >= w * h) {
167 | dest[pos++] = src[k--];
168 | }
169 |
170 | k = src.length - 1;
171 | while (pos < dest.length) {
172 | dest[pos++] = src[k--];
173 | }
174 | }
175 |
176 | /******************************* YUV420格式相互转换算法 *******************************/
177 |
178 | // i420 -> nv12, yv12 -> nv21
179 | public static void pToSP(byte[] src, byte[] dest, int w, int h) {
180 | int pos = w * h;
181 | int u = pos;
182 | int v = pos + (pos >> 2);
183 | System.arraycopy(src, 0, dest, 0, pos);
184 | while (pos < src.length) {
185 | dest[pos++] = src[u++];
186 | dest[pos++] = src[v++];
187 | }
188 | }
189 |
190 | // i420 -> nv21, yv12 -> nv12
191 | public static void pToSPx(byte[] src, byte[] dest, int w, int h) {
192 | int pos = w * h;
193 | int u = pos;
194 | int v = pos + (pos >> 2);
195 | System.arraycopy(src, 0, dest, 0, pos);
196 | while (pos < src.length) {
197 | dest[pos++] = src[v++];
198 | dest[pos++] = src[u++];
199 | }
200 | }
201 |
202 | // nv12 -> i420, nv21 -> yv12
203 | public static void spToP(byte[] src, byte[] dest, int w, int h) {
204 | int pos = w * h;
205 | int u = pos;
206 | int v = pos + (pos >> 2);
207 | System.arraycopy(src, 0, dest, 0, pos);
208 | while (pos < src.length) {
209 | dest[u++] = src[pos++];
210 | dest[v++] = src[pos++];
211 | }
212 | }
213 |
214 | // nv12 -> yv12, nv21 -> i420
215 | public static void spToPx(byte[] src, byte[] dest, int w, int h) {
216 | int pos = w * h;
217 | int u = pos;
218 | int v = pos + (pos >> 2);
219 | System.arraycopy(src, 0, dest, 0, pos);
220 | while (pos < src.length) {
221 | dest[v++] = src[pos++];
222 | dest[u++] = src[pos++];
223 | }
224 | }
225 |
226 | // i420 <-> yv12
227 | public static void pToP(byte[] src, byte[] dest, int w, int h) {
228 | int pos = w * h;
229 | int off = pos >> 2;
230 | System.arraycopy(src, 0, dest, 0, pos);
231 | System.arraycopy(src, pos, dest, pos + off, off);
232 | System.arraycopy(src, pos + off, dest, pos, off);
233 | }
234 |
235 | // nv12 <-> nv21
236 | public static void spToSP(byte[] src, byte[] dest, int w, int h) {
237 | int pos = w * h;
238 | System.arraycopy(src, 0, dest, 0, pos);
239 | for (; pos < src.length; pos += 2) {
240 | dest[pos] = src[pos + 1];
241 | dest[pos + 1] = src[pos];
242 | }
243 | }
244 |
245 |
246 | /******************************* YUV420转换Bitmap算法 *******************************/
247 |
248 | // 此方法虽然是官方的，但是耗时是下面方法的两倍
249 | // public static Bitmap nv21ToBitmap(byte[] data, int w, int h) {
250 | // final YuvImage image = new YuvImage(data, ImageFormat.NV21, w, h, null);
251 | // ByteArrayOutputStream os = new ByteArrayOutputStream(data.length);
252 | // if (image.compressToJpeg(new Rect(0, 0, w, h), 100, os)) {
253 | // byte[] tmp = os.toByteArray();
254 | // return BitmapFactory.decodeByteArray(tmp, 0, tmp.length);
255 | // }
256 | // return null;
257 | // }
258 |
259 | public static Bitmap nv12ToBitmap(byte[] data, int w, int h) {
260 | return spToBitmap(data, w, h, 0, 1);
261 | }
262 |
263 | public static Bitmap nv21ToBitmap(byte[] data, int w, int h) {
264 | return spToBitmap(data, w, h, 1, 0);
265 | }
266 |
267 | private static Bitmap spToBitmap(byte[] data, int w, int h, int uOff, int vOff) {
268 | int plane = w * h;
269 | int[] colors = new int[plane];
270 | int yPos = 0, uvPos = plane;
271 | for(int j = 0; j < h; j++) {
272 | for(int i = 0; i < w; i++) {
273 | // YUV byte to RGB int
274 | final int y1 = data[yPos] & 0xff;
275 | final int u = (data[uvPos + uOff] & 0xff) - 128;
276 | final int v = (data[uvPos + vOff] & 0xff) - 128;
277 | final int y1192 = 1192 * y1;
278 | int r = (y1192 + 1634 * v);
279 | int g = (y1192 - 833 * v - 400 * u);
280 | int b = (y1192 + 2066 * u);
281 |
282 | r = (r < 0) ? 0 : ((r > 262143) ? 262143 : r);
283 | g = (g < 0) ? 0 : ((g > 262143) ? 262143 : g);
284 | b = (b < 0) ? 0 : ((b > 262143) ? 262143 : b);
285 | colors[yPos] = ((r << 6) & 0xff0000) |
286 | ((g >> 2) & 0xff00) |
287 | ((b >> 10) & 0xff);
288 |
289 | if((yPos++ & 1) == 1) uvPos += 2;
290 | }
291 | if((j & 1) == 0) uvPos -= w;
292 | }
293 | return Bitmap.createBitmap(colors, w, h, Bitmap.Config.RGB_565);
294 | }
295 |
296 | public static Bitmap i420ToBitmap(byte[] data, int w, int h) {
297 | return pToBitmap(data, w, h, true);
298 | }
299 |
300 | public static Bitmap yv12ToBitmap(byte[] data, int w, int h) {
301 | return pToBitmap(data, w, h, false);
302 | }
303 |
304 | private static Bitmap pToBitmap(byte[] data, int w, int h, boolean uv) {
305 | int plane = w * h;
306 | int[] colors = new int[plane];
307 | int off = plane >> 2;
308 | int yPos = 0, uPos = plane + (uv ? 0 : off), vPos = plane + (uv ? off : 0);
309 | for(int j = 0; j < h; j++) {
310 | for(int i = 0; i < w; i++) {
311 | // YUV byte to RGB int
312 | final int y1 = data[yPos] & 0xff;
313 | final int u = (data[uPos] & 0xff) - 128;
314 | final int v = (data[vPos] & 0xff) - 128;
315 | final int y1192 = 1192 * y1;
316 | int r = (y1192 + 1634 * v);
317 | int g = (y1192 - 833 * v - 400 * u);
318 | int b = (y1192 + 2066 * u);
319 |
320 | r = (r < 0) ? 0 : ((r > 262143) ? 262143 : r);
321 | g = (g < 0) ? 0 : ((g > 262143) ? 262143 : g);
322 | b = (b < 0) ? 0 : ((b > 262143) ? 262143 : b);
323 | colors[yPos] = ((r << 6) & 0xff0000) |
324 | ((g >> 2) & 0xff00) |
325 | ((b >> 10) & 0xff);
326 |
327 | if((yPos++ & 1) == 1) {
328 | uPos++;
329 | vPos++;
330 | }
331 | }
332 | if((j & 1) == 0) {
333 | uPos -= (w >> 1);
334 | vPos -= (w >> 1);
335 | }
336 | }
337 | return Bitmap.createBitmap(colors, w, h, Bitmap.Config.RGB_565);
338 | }
339 |
340 | public static int[] planesToColors(Image.Plane[] planes, int height) {
341 | ByteBuffer yPlane = planes[0].getBuffer();
342 | ByteBuffer uPlane = planes[1].getBuffer();
343 | ByteBuffer vPlane = planes[2].getBuffer();
344 |
345 | int bufferIndex = 0;
346 | final int total = yPlane.capacity();
347 | final int uvCapacity = uPlane.capacity();
348 | final int width = planes[0].getRowStride();
349 |
350 | int[] rgbBuffer = new int[width * height];
351 |
352 | int yPos = 0;
353 | for (int i = 0; i < height; i++) {
354 | int uvPos = (i >> 1) * width;
355 |
356 | for (int j = 0; j < width; j++) {
357 | if (uvPos >= uvCapacity - 1)
358 | break;
359 | if (yPos >= total)
360 | break;
361 |
362 | final int y1 = yPlane.get(yPos++) & 0xff;
363 |
364 | /*
365 | The ordering of the u (Cb) and v (Cr) bytes inside the planes is a
366 | bit strange. The _first_ byte of the u-plane and the _second_ byte
367 | of the v-plane build the u/v pair and belong to the first two pixels
368 | (y-bytes), thus usual YUV 420 behavior. What the Android devs did
369 | here (IMHO): just copy the interleaved NV21 U/V data to two planes
370 | but keep the offset of the interleaving.
371 | */
372 | final int u = (uPlane.get(uvPos) & 0xff) - 128;
373 | final int v = (vPlane.get(uvPos) & 0xff) - 128;
374 | if ((j & 1) == 1) {
375 | uvPos += 2;
376 | }
377 |
378 | // This is the integer variant to convert YCbCr to RGB, NTSC values.
379 | // formulae found at
380 | // https://software.intel.com/en-us/android/articles/trusted-tools-in-the-new-android-world-optimization-techniques-from-intel-sse-intrinsics-to
381 | // and on StackOverflow etc.
382 | final int y1192 = 1192 * y1;
383 | int r = (y1192 + 1634 * v);
384 | int g = (y1192 - 833 * v - 400 * u);
385 | int b = (y1192 + 2066 * u);
386 |
387 | r = (r < 0) ? 0 : ((r > 262143) ? 262143 : r);
388 | g = (g < 0) ? 0 : ((g > 262143) ? 262143 : g);
389 | b = (b < 0) ? 0 : ((b > 262143) ? 262143 : b);
390 |
391 | rgbBuffer[bufferIndex++] = ((r << 6) & 0xff0000) |
392 | ((g >> 2) & 0xff00) |
393 | ((b >> 10) & 0xff);
394 | }
395 | }
396 | return rgbBuffer;
397 | }
398 |
399 | /**
400 | * 从ImageReader中获取byte[]数据
401 | */
402 | public static byte[] getBytesFromImageReader(ImageReader imageReader) {
403 | try (Image image = imageReader.acquireNextImage()) {
404 | final Image.Plane[] planes = image.getPlanes();
405 | ByteBuffer b0 = planes[0].getBuffer();
406 | ByteBuffer b1 = planes[1].getBuffer();
407 | ByteBuffer b2 = planes[2].getBuffer();
408 | int y = b0.remaining(), u = y >> 2, v = u;
409 | byte[] bytes = new byte[y + u + v];
410 | if(b1.remaining() > u) { // y420sp
411 | b0.get(bytes, 0, b0.remaining());
412 | b1.get(bytes, y, b1.remaining()); // uv
413 | } else { // y420p
414 | b0.get(bytes, 0, b0.remaining());
415 | b1.get(bytes, y, b1.remaining()); // u
416 | b2.get(bytes, y + u, b2.remaining()); // v
417 | }
418 | return bytes;
419 | } catch (Exception e) {
420 | e.printStackTrace();
421 | }
422 | return null;
423 | }
424 | }
425 |
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/Application/src/main/java/com/example/android/camera2basic/AutoFitTextureView.java:
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1 | /*
2 | * Copyright 2014 The Android Open Source Project
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 | package com.example.android.camera2basic;
18 |
19 | import android.content.Context;
20 | import android.util.AttributeSet;
21 | import android.view.TextureView;
22 |
23 | /**
24 | * A {@link TextureView} that can be adjusted to a specified aspect ratio.
25 | */
26 | public class AutoFitTextureView extends TextureView {
27 |
28 | private int mRatioWidth = 0;
29 | private int mRatioHeight = 0;
30 |
31 | public AutoFitTextureView(Context context) {
32 | this(context, null);
33 | }
34 |
35 | public AutoFitTextureView(Context context, AttributeSet attrs) {
36 | this(context, attrs, 0);
37 | }
38 |
39 | public AutoFitTextureView(Context context, AttributeSet attrs, int defStyle) {
40 | super(context, attrs, defStyle);
41 | }
42 |
43 | /**
44 | * Sets the aspect ratio for this view. The size of the view will be measured based on the ratio
45 | * calculated from the parameters. Note that the actual sizes of parameters don't matter, that
46 | * is, calling setAspectRatio(2, 3) and setAspectRatio(4, 6) make the same result.
47 | *
48 | * @param width Relative horizontal size
49 | * @param height Relative vertical size
50 | */
51 | public void setAspectRatio(int width, int height) {
52 | if (width < 0 || height < 0) {
53 | throw new IllegalArgumentException("Size cannot be negative.");
54 | }
55 | mRatioWidth = width;
56 | mRatioHeight = height;
57 | requestLayout();
58 | }
59 |
60 | @Override
61 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
62 | super.onMeasure(widthMeasureSpec, heightMeasureSpec);
63 | int width = MeasureSpec.getSize(widthMeasureSpec);
64 | int height = MeasureSpec.getSize(heightMeasureSpec);
65 | if (0 == mRatioWidth || 0 == mRatioHeight) {
66 | setMeasuredDimension(width, height);
67 | } else {
68 | if (width < height * mRatioWidth / mRatioHeight) {
69 | setMeasuredDimension(width, width * mRatioHeight / mRatioWidth);
70 | } else {
71 | setMeasuredDimension(height * mRatioWidth / mRatioHeight, height);
72 | }
73 | }
74 | }
75 |
76 | }
77 |
--------------------------------------------------------------------------------
/Application/src/main/java/com/example/android/camera2basic/Camera2BasicFragment.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2017 The Android Open Source Project
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 | package com.example.android.camera2basic;
18 |
19 | import android.Manifest;
20 | import android.app.Activity;
21 | import android.app.AlertDialog;
22 | import android.app.Dialog;
23 | import android.content.Context;
24 | import android.content.DialogInterface;
25 | import android.content.pm.PackageManager;
26 | import android.content.res.Configuration;
27 | import android.graphics.ImageFormat;
28 | import android.graphics.Matrix;
29 | import android.graphics.Point;
30 | import android.graphics.RectF;
31 | import android.graphics.SurfaceTexture;
32 | import android.hardware.camera2.CameraAccessException;
33 | import android.hardware.camera2.CameraCaptureSession;
34 | import android.hardware.camera2.CameraCharacteristics;
35 | import android.hardware.camera2.CameraDevice;
36 | import android.hardware.camera2.CameraManager;
37 | import android.hardware.camera2.CameraMetadata;
38 | import android.hardware.camera2.CaptureRequest;
39 | import android.hardware.camera2.CaptureResult;
40 | import android.hardware.camera2.TotalCaptureResult;
41 | import android.hardware.camera2.params.StreamConfigurationMap;
42 | import android.media.Image;
43 | import android.media.ImageReader;
44 | import android.os.Bundle;
45 | import android.os.Handler;
46 | import android.os.HandlerThread;
47 | import android.support.annotation.NonNull;
48 | import android.support.v4.app.ActivityCompat;
49 | import android.support.v4.app.DialogFragment;
50 | import android.support.v4.app.Fragment;
51 | import android.support.v4.content.ContextCompat;
52 | import android.util.Log;
53 | import android.util.Size;
54 | import android.util.SparseIntArray;
55 | import android.view.LayoutInflater;
56 | import android.view.Surface;
57 | import android.view.TextureView;
58 | import android.view.View;
59 | import android.view.ViewGroup;
60 | import android.widget.Toast;
61 |
62 | import java.io.File;
63 | import java.io.FileOutputStream;
64 | import java.io.IOException;
65 | import java.nio.ByteBuffer;
66 | import java.util.ArrayList;
67 | import java.util.Arrays;
68 | import java.util.Collections;
69 | import java.util.Comparator;
70 | import java.util.List;
71 | import java.util.concurrent.Semaphore;
72 | import java.util.concurrent.TimeUnit;
73 |
74 | import cc.rome753.encodemp4.R;
75 | import cc.rome753.encodemp4.YUVTools;
76 |
77 | public class Camera2BasicFragment extends Fragment
78 | implements View.OnClickListener, ActivityCompat.OnRequestPermissionsResultCallback {
79 |
80 | /**
81 | * Conversion from screen rotation to JPEG orientation.
82 | */
83 | private static final SparseIntArray ORIENTATIONS = new SparseIntArray();
84 | private static final int REQUEST_CAMERA_PERMISSION = 1;
85 | private static final String FRAGMENT_DIALOG = "dialog";
86 |
87 | static {
88 | ORIENTATIONS.append(Surface.ROTATION_0, 90);
89 | ORIENTATIONS.append(Surface.ROTATION_90, 0);
90 | ORIENTATIONS.append(Surface.ROTATION_180, 270);
91 | ORIENTATIONS.append(Surface.ROTATION_270, 180);
92 | }
93 |
94 | /**
95 | * Tag for the {@link Log}.
96 | */
97 | private static final String TAG = "Camera2BasicFragment";
98 |
99 | /**
100 | * Camera state: Showing camera preview.
101 | */
102 | private static final int STATE_PREVIEW = 0;
103 |
104 | /**
105 | * Camera state: Waiting for the focus to be locked.
106 | */
107 | private static final int STATE_WAITING_LOCK = 1;
108 |
109 | /**
110 | * Camera state: Waiting for the exposure to be precapture state.
111 | */
112 | private static final int STATE_WAITING_PRECAPTURE = 2;
113 |
114 | /**
115 | * Camera state: Waiting for the exposure state to be something other than precapture.
116 | */
117 | private static final int STATE_WAITING_NON_PRECAPTURE = 3;
118 |
119 | /**
120 | * Camera state: Picture was taken.
121 | */
122 | private static final int STATE_PICTURE_TAKEN = 4;
123 |
124 | /**
125 | * Max preview width that is guaranteed by Camera2 API
126 | */
127 | private static final int MAX_PREVIEW_WIDTH = 1920;
128 |
129 | /**
130 | * Max preview height that is guaranteed by Camera2 API
131 | */
132 | private static final int MAX_PREVIEW_HEIGHT = 1080;
133 |
134 | /**
135 | * {@link TextureView.SurfaceTextureListener} handles several lifecycle events on a
136 | * {@link TextureView}.
137 | */
138 | private final TextureView.SurfaceTextureListener mSurfaceTextureListener
139 | = new TextureView.SurfaceTextureListener() {
140 |
141 | @Override
142 | public void onSurfaceTextureAvailable(SurfaceTexture texture, int width, int height) {
143 | openCamera(width, height);
144 | }
145 |
146 | @Override
147 | public void onSurfaceTextureSizeChanged(SurfaceTexture texture, int width, int height) {
148 | configureTransform(width, height);
149 | }
150 |
151 | @Override
152 | public boolean onSurfaceTextureDestroyed(SurfaceTexture texture) {
153 | return true;
154 | }
155 |
156 | @Override
157 | public void onSurfaceTextureUpdated(SurfaceTexture texture) {
158 | }
159 |
160 | };
161 |
162 | /**
163 | * ID of the current {@link CameraDevice}.
164 | */
165 | private String mCameraId;
166 |
167 | /**
168 | * An {@link AutoFitTextureView} for camera preview.
169 | */
170 | private AutoFitTextureView mTextureView;
171 |
172 | /**
173 | * A {@link CameraCaptureSession } for camera preview.
174 | */
175 | private CameraCaptureSession mCaptureSession;
176 |
177 | /**
178 | * A reference to the opened {@link CameraDevice}.
179 | */
180 | private CameraDevice mCameraDevice;
181 |
182 | /**
183 | * The {@link android.util.Size} of camera preview.
184 | */
185 | private Size mPreviewSize;
186 |
187 | /**
188 | * {@link CameraDevice.StateCallback} is called when {@link CameraDevice} changes its state.
189 | */
190 | private final CameraDevice.StateCallback mStateCallback = new CameraDevice.StateCallback() {
191 |
192 | @Override
193 | public void onOpened(@NonNull CameraDevice cameraDevice) {
194 | // This method is called when the camera is opened. We start camera preview here.
195 | mCameraOpenCloseLock.release();
196 | mCameraDevice = cameraDevice;
197 | createCameraPreviewSession();
198 | }
199 |
200 | @Override
201 | public void onDisconnected(@NonNull CameraDevice cameraDevice) {
202 | mCameraOpenCloseLock.release();
203 | cameraDevice.close();
204 | mCameraDevice = null;
205 | }
206 |
207 | @Override
208 | public void onError(@NonNull CameraDevice cameraDevice, int error) {
209 | mCameraOpenCloseLock.release();
210 | cameraDevice.close();
211 | mCameraDevice = null;
212 | Activity activity = getActivity();
213 | if (null != activity) {
214 | activity.finish();
215 | }
216 | }
217 |
218 | };
219 |
220 | /**
221 | * An additional thread for running tasks that shouldn't block the UI.
222 | */
223 | private HandlerThread mBackgroundThread;
224 |
225 | /**
226 | * A {@link Handler} for running tasks in the background.
227 | */
228 | private Handler mBackgroundHandler;
229 |
230 | /**
231 | * An {@link ImageReader} that handles still image capture.
232 | */
233 | private ImageReader mImageReader;
234 |
235 | /**
236 | * This is the output file for our picture.
237 | */
238 | private File mFile;
239 |
240 | /**
241 | * This a callback object for the {@link ImageReader}. "onImageAvailable" will be called when a
242 | * still image is ready to be saved.
243 | */
244 | private final ImageReader.OnImageAvailableListener mOnImageAvailableListener
245 | = new ImageReader.OnImageAvailableListener() {
246 |
247 | @Override
248 | public void onImageAvailable(ImageReader reader) {
249 | // mBackgroundHandler.post(new ImageSaver(reader.acquireNextImage(), mFile));
250 | byte[] data = YUVTools.getBytesFromImageReader(reader);
251 | ((CameraActivity)getActivity()).addVideoData(data);
252 |
253 | }
254 |
255 | };
256 |
257 | /**
258 | * {@link CaptureRequest.Builder} for the camera preview
259 | */
260 | private CaptureRequest.Builder mPreviewRequestBuilder;
261 |
262 | /**
263 | * {@link CaptureRequest} generated by {@link #mPreviewRequestBuilder}
264 | */
265 | private CaptureRequest mPreviewRequest;
266 |
267 | /**
268 | * The current state of camera state for taking pictures.
269 | *
270 | * @see #mCaptureCallback
271 | */
272 | private int mState = STATE_PREVIEW;
273 |
274 | /**
275 | * A {@link Semaphore} to prevent the app from exiting before closing the camera.
276 | */
277 | private Semaphore mCameraOpenCloseLock = new Semaphore(1);
278 |
279 | /**
280 | * Whether the current camera device supports Flash or not.
281 | */
282 | private boolean mFlashSupported;
283 |
284 | /**
285 | * Orientation of the camera sensor
286 | */
287 | private int mSensorOrientation;
288 |
289 | /**
290 | * A {@link CameraCaptureSession.CaptureCallback} that handles events related to JPEG capture.
291 | */
292 | private CameraCaptureSession.CaptureCallback mCaptureCallback
293 | = new CameraCaptureSession.CaptureCallback() {
294 |
295 | private void process(CaptureResult result) {
296 | switch (mState) {
297 | case STATE_PREVIEW: {
298 | // We have nothing to do when the camera preview is working normally.
299 | break;
300 | }
301 | case STATE_WAITING_LOCK: {
302 | Integer afState = result.get(CaptureResult.CONTROL_AF_STATE);
303 | if (afState == null) {
304 | captureStillPicture();
305 | } else if (CaptureResult.CONTROL_AF_STATE_FOCUSED_LOCKED == afState ||
306 | CaptureResult.CONTROL_AF_STATE_NOT_FOCUSED_LOCKED == afState) {
307 | // CONTROL_AE_STATE can be null on some devices
308 | Integer aeState = result.get(CaptureResult.CONTROL_AE_STATE);
309 | if (aeState == null ||
310 | aeState == CaptureResult.CONTROL_AE_STATE_CONVERGED) {
311 | mState = STATE_PICTURE_TAKEN;
312 | captureStillPicture();
313 | } else {
314 | runPrecaptureSequence();
315 | }
316 | }
317 | break;
318 | }
319 | case STATE_WAITING_PRECAPTURE: {
320 | // CONTROL_AE_STATE can be null on some devices
321 | Integer aeState = result.get(CaptureResult.CONTROL_AE_STATE);
322 | if (aeState == null ||
323 | aeState == CaptureResult.CONTROL_AE_STATE_PRECAPTURE ||
324 | aeState == CaptureRequest.CONTROL_AE_STATE_FLASH_REQUIRED) {
325 | mState = STATE_WAITING_NON_PRECAPTURE;
326 | }
327 | break;
328 | }
329 | case STATE_WAITING_NON_PRECAPTURE: {
330 | // CONTROL_AE_STATE can be null on some devices
331 | Integer aeState = result.get(CaptureResult.CONTROL_AE_STATE);
332 | if (aeState == null || aeState != CaptureResult.CONTROL_AE_STATE_PRECAPTURE) {
333 | mState = STATE_PICTURE_TAKEN;
334 | captureStillPicture();
335 | }
336 | break;
337 | }
338 | }
339 | }
340 |
341 | @Override
342 | public void onCaptureProgressed(@NonNull CameraCaptureSession session,
343 | @NonNull CaptureRequest request,
344 | @NonNull CaptureResult partialResult) {
345 | process(partialResult);
346 | }
347 |
348 | @Override
349 | public void onCaptureCompleted(@NonNull CameraCaptureSession session,
350 | @NonNull CaptureRequest request,
351 | @NonNull TotalCaptureResult result) {
352 | process(result);
353 | }
354 |
355 | };
356 |
357 | /**
358 | * Shows a {@link Toast} on the UI thread.
359 | *
360 | * @param text The message to show
361 | */
362 | private void showToast(final String text) {
363 | final Activity activity = getActivity();
364 | if (activity != null) {
365 | activity.runOnUiThread(new Runnable() {
366 | @Override
367 | public void run() {
368 | Toast.makeText(activity, text, Toast.LENGTH_SHORT).show();
369 | }
370 | });
371 | }
372 | }
373 |
374 | /**
375 | * Given {@code choices} of {@code Size}s supported by a camera, choose the smallest one that
376 | * is at least as large as the respective texture view size, and that is at most as large as the
377 | * respective max size, and whose aspect ratio matches with the specified value. If such size
378 | * doesn't exist, choose the largest one that is at most as large as the respective max size,
379 | * and whose aspect ratio matches with the specified value.
380 | *
381 | * @param choices The list of sizes that the camera supports for the intended output
382 | * class
383 | * @param textureViewWidth The width of the texture view relative to sensor coordinate
384 | * @param textureViewHeight The height of the texture view relative to sensor coordinate
385 | * @param maxWidth The maximum width that can be chosen
386 | * @param maxHeight The maximum height that can be chosen
387 | * @param aspectRatio The aspect ratio
388 | * @return The optimal {@code Size}, or an arbitrary one if none were big enough
389 | */
390 | private static Size chooseOptimalSize(Size[] choices, int textureViewWidth,
391 | int textureViewHeight, int maxWidth, int maxHeight, Size aspectRatio) {
392 |
393 | // Collect the supported resolutions that are at least as big as the preview Surface
394 | List bigEnough = new ArrayList<>();
395 | // Collect the supported resolutions that are smaller than the preview Surface
396 | List notBigEnough = new ArrayList<>();
397 | int w = aspectRatio.getWidth();
398 | int h = aspectRatio.getHeight();
399 | for (Size option : choices) {
400 | if (option.getWidth() <= maxWidth && option.getHeight() <= maxHeight &&
401 | option.getHeight() == option.getWidth() * h / w) {
402 | if (option.getWidth() >= textureViewWidth &&
403 | option.getHeight() >= textureViewHeight) {
404 | bigEnough.add(option);
405 | } else {
406 | notBigEnough.add(option);
407 | }
408 | }
409 | }
410 |
411 | // Pick the smallest of those big enough. If there is no one big enough, pick the
412 | // largest of those not big enough.
413 | if (bigEnough.size() > 0) {
414 | return Collections.min(bigEnough, new CompareSizesByArea());
415 | } else if (notBigEnough.size() > 0) {
416 | return Collections.max(notBigEnough, new CompareSizesByArea());
417 | } else {
418 | Log.e(TAG, "Couldn't find any suitable preview size");
419 | return choices[0];
420 | }
421 | }
422 |
423 | public static Camera2BasicFragment newInstance() {
424 | return new Camera2BasicFragment();
425 | }
426 |
427 | @Override
428 | public View onCreateView(LayoutInflater inflater, ViewGroup container,
429 | Bundle savedInstanceState) {
430 | return inflater.inflate(R.layout.fragment_camera2_basic, container, false);
431 | }
432 |
433 | @Override
434 | public void onViewCreated(final View view, Bundle savedInstanceState) {
435 | view.findViewById(R.id.picture).setOnClickListener(this);
436 | view.findViewById(R.id.info).setOnClickListener(this);
437 | mTextureView = (AutoFitTextureView) view.findViewById(R.id.texture);
438 | }
439 |
440 | @Override
441 | public void onActivityCreated(Bundle savedInstanceState) {
442 | super.onActivityCreated(savedInstanceState);
443 | mFile = new File(getActivity().getExternalFilesDir(null), "pic.jpg");
444 | }
445 |
446 | @Override
447 | public void onResume() {
448 | super.onResume();
449 | startBackgroundThread();
450 |
451 | // When the screen is turned off and turned back on, the SurfaceTexture is already
452 | // available, and "onSurfaceTextureAvailable" will not be called. In that case, we can open
453 | // a camera and start preview from here (otherwise, we wait until the surface is ready in
454 | // the SurfaceTextureListener).
455 | if (mTextureView.isAvailable()) {
456 | openCamera(mTextureView.getWidth(), mTextureView.getHeight());
457 | } else {
458 | mTextureView.setSurfaceTextureListener(mSurfaceTextureListener);
459 | }
460 | }
461 |
462 | @Override
463 | public void onPause() {
464 | closeCamera();
465 | stopBackgroundThread();
466 | super.onPause();
467 | }
468 |
469 | private void requestCameraPermission() {
470 | if (shouldShowRequestPermissionRationale(Manifest.permission.CAMERA)) {
471 | new ConfirmationDialog().show(getChildFragmentManager(), FRAGMENT_DIALOG);
472 | } else {
473 | requestPermissions(new String[]{Manifest.permission.CAMERA, Manifest.permission.RECORD_AUDIO, Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_CAMERA_PERMISSION);
474 | }
475 | }
476 |
477 | @Override
478 | public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
479 | @NonNull int[] grantResults) {
480 | if (requestCode == REQUEST_CAMERA_PERMISSION) {
481 | if (grantResults[0] != PackageManager.PERMISSION_GRANTED) {
482 | ErrorDialog.newInstance(getString(R.string.request_permission))
483 | .show(getChildFragmentManager(), FRAGMENT_DIALOG);
484 | }
485 | } else {
486 | super.onRequestPermissionsResult(requestCode, permissions, grantResults);
487 | }
488 | }
489 |
490 | /**
491 | * Sets up member variables related to camera.
492 | *
493 | * @param width The width of available size for camera preview
494 | * @param height The height of available size for camera preview
495 | */
496 | @SuppressWarnings("SuspiciousNameCombination")
497 | private void setUpCameraOutputs(int width, int height) {
498 | Activity activity = getActivity();
499 | CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
500 | try {
501 | for (String cameraId : manager.getCameraIdList()) {
502 | CameraCharacteristics characteristics
503 | = manager.getCameraCharacteristics(cameraId);
504 |
505 | // We don't use a front facing camera in this sample.
506 | Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
507 | if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) {
508 | continue;
509 | }
510 |
511 | StreamConfigurationMap map = characteristics.get(
512 | CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
513 | if (map == null) {
514 | continue;
515 | }
516 |
517 | // For still image captures, we use the largest available size.
518 | Size largest = Collections.max(
519 | Arrays.asList(map.getOutputSizes(ImageFormat.JPEG)),
520 | new CompareSizesByArea());
521 | mImageReader = ImageReader.newInstance(640, 480,
522 | ImageFormat.YUV_420_888, /*maxImages*/2);
523 | mImageReader.setOnImageAvailableListener(
524 | mOnImageAvailableListener, mBackgroundHandler);
525 |
526 | // Find out if we need to swap dimension to get the preview size relative to sensor
527 | // coordinate.
528 | int displayRotation = activity.getWindowManager().getDefaultDisplay().getRotation();
529 | //noinspection ConstantConditions
530 | mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
531 | boolean swappedDimensions = false;
532 | switch (displayRotation) {
533 | case Surface.ROTATION_0:
534 | case Surface.ROTATION_180:
535 | if (mSensorOrientation == 90 || mSensorOrientation == 270) {
536 | swappedDimensions = true;
537 | }
538 | break;
539 | case Surface.ROTATION_90:
540 | case Surface.ROTATION_270:
541 | if (mSensorOrientation == 0 || mSensorOrientation == 180) {
542 | swappedDimensions = true;
543 | }
544 | break;
545 | default:
546 | Log.e(TAG, "Display rotation is invalid: " + displayRotation);
547 | }
548 |
549 | Point displaySize = new Point();
550 | activity.getWindowManager().getDefaultDisplay().getSize(displaySize);
551 | int rotatedPreviewWidth = width;
552 | int rotatedPreviewHeight = height;
553 | int maxPreviewWidth = displaySize.x;
554 | int maxPreviewHeight = displaySize.y;
555 |
556 | if (swappedDimensions) {
557 | rotatedPreviewWidth = height;
558 | rotatedPreviewHeight = width;
559 | maxPreviewWidth = displaySize.y;
560 | maxPreviewHeight = displaySize.x;
561 | }
562 |
563 | if (maxPreviewWidth > MAX_PREVIEW_WIDTH) {
564 | maxPreviewWidth = MAX_PREVIEW_WIDTH;
565 | }
566 |
567 | if (maxPreviewHeight > MAX_PREVIEW_HEIGHT) {
568 | maxPreviewHeight = MAX_PREVIEW_HEIGHT;
569 | }
570 |
571 | // Danger, W.R.! Attempting to use too large a preview size could exceed the camera
572 | // bus' bandwidth limitation, resulting in gorgeous previews but the storage of
573 | // garbage capture data.
574 | mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class),
575 | rotatedPreviewWidth, rotatedPreviewHeight, maxPreviewWidth,
576 | maxPreviewHeight, largest);
577 |
578 | // We fit the aspect ratio of TextureView to the size of preview we picked.
579 | int orientation = getResources().getConfiguration().orientation;
580 | if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
581 | mTextureView.setAspectRatio(
582 | mPreviewSize.getWidth(), mPreviewSize.getHeight());
583 | } else {
584 | mTextureView.setAspectRatio(
585 | mPreviewSize.getHeight(), mPreviewSize.getWidth());
586 | }
587 |
588 | // Check if the flash is supported.
589 | Boolean available = characteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE);
590 | mFlashSupported = available == null ? false : available;
591 |
592 | mCameraId = cameraId;
593 | return;
594 | }
595 | } catch (CameraAccessException e) {
596 | e.printStackTrace();
597 | } catch (NullPointerException e) {
598 | // Currently an NPE is thrown when the Camera2API is used but not supported on the
599 | // device this code runs.
600 | ErrorDialog.newInstance(getString(R.string.camera_error))
601 | .show(getChildFragmentManager(), FRAGMENT_DIALOG);
602 | }
603 | }
604 |
605 | /**
606 | * Opens the camera specified by {@link Camera2BasicFragment#mCameraId}.
607 | */
608 | private void openCamera(int width, int height) {
609 | if (ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.CAMERA)
610 | != PackageManager.PERMISSION_GRANTED) {
611 | requestCameraPermission();
612 | return;
613 | }
614 | setUpCameraOutputs(width, height);
615 | configureTransform(width, height);
616 | Activity activity = getActivity();
617 | CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
618 | try {
619 | if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) {
620 | throw new RuntimeException("Time out waiting to lock camera opening.");
621 | }
622 | manager.openCamera(mCameraId, mStateCallback, mBackgroundHandler);
623 | } catch (CameraAccessException e) {
624 | e.printStackTrace();
625 | } catch (InterruptedException e) {
626 | throw new RuntimeException("Interrupted while trying to lock camera opening.", e);
627 | }
628 | }
629 |
630 | /**
631 | * Closes the current {@link CameraDevice}.
632 | */
633 | private void closeCamera() {
634 | try {
635 | mCameraOpenCloseLock.acquire();
636 | if (null != mCaptureSession) {
637 | mCaptureSession.close();
638 | mCaptureSession = null;
639 | }
640 | if (null != mCameraDevice) {
641 | mCameraDevice.close();
642 | mCameraDevice = null;
643 | }
644 | if (null != mImageReader) {
645 | mImageReader.close();
646 | mImageReader = null;
647 | }
648 | } catch (InterruptedException e) {
649 | throw new RuntimeException("Interrupted while trying to lock camera closing.", e);
650 | } finally {
651 | mCameraOpenCloseLock.release();
652 | }
653 | }
654 |
655 | /**
656 | * Starts a background thread and its {@link Handler}.
657 | */
658 | private void startBackgroundThread() {
659 | mBackgroundThread = new HandlerThread("CameraBackground");
660 | mBackgroundThread.start();
661 | mBackgroundHandler = new Handler(mBackgroundThread.getLooper());
662 | }
663 |
664 | /**
665 | * Stops the background thread and its {@link Handler}.
666 | */
667 | private void stopBackgroundThread() {
668 | mBackgroundThread.quitSafely();
669 | try {
670 | mBackgroundThread.join();
671 | mBackgroundThread = null;
672 | mBackgroundHandler = null;
673 | } catch (InterruptedException e) {
674 | e.printStackTrace();
675 | }
676 | }
677 |
678 | /**
679 | * Creates a new {@link CameraCaptureSession} for camera preview.
680 | */
681 | private void createCameraPreviewSession() {
682 | try {
683 | SurfaceTexture texture = mTextureView.getSurfaceTexture();
684 | assert texture != null;
685 |
686 | // We configure the size of default buffer to be the size of camera preview we want.
687 | texture.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());
688 |
689 | // This is the output Surface we need to start preview.
690 | Surface surface = new Surface(texture);
691 |
692 | // We set up a CaptureRequest.Builder with the output Surface.
693 | mPreviewRequestBuilder
694 | = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
695 | mPreviewRequestBuilder.addTarget(surface);
696 | mPreviewRequestBuilder.addTarget(mImageReader.getSurface());
697 |
698 | // Here, we create a CameraCaptureSession for camera preview.
699 | mCameraDevice.createCaptureSession(Arrays.asList(surface, mImageReader.getSurface()),
700 | new CameraCaptureSession.StateCallback() {
701 |
702 | @Override
703 | public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {
704 | // The camera is already closed
705 | if (null == mCameraDevice) {
706 | return;
707 | }
708 |
709 | // When the session is ready, we start displaying the preview.
710 | mCaptureSession = cameraCaptureSession;
711 | try {
712 | // Auto focus should be continuous for camera preview.
713 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE,
714 | CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
715 | // Flash is automatically enabled when necessary.
716 | setAutoFlash(mPreviewRequestBuilder);
717 |
718 | // Finally, we start displaying the camera preview.
719 | mPreviewRequest = mPreviewRequestBuilder.build();
720 | mCaptureSession.setRepeatingRequest(mPreviewRequest,
721 | mCaptureCallback, mBackgroundHandler);
722 | } catch (CameraAccessException e) {
723 | e.printStackTrace();
724 | }
725 | }
726 |
727 | @Override
728 | public void onConfigureFailed(
729 | @NonNull CameraCaptureSession cameraCaptureSession) {
730 | showToast("Failed");
731 | }
732 | }, null
733 | );
734 | } catch (CameraAccessException e) {
735 | e.printStackTrace();
736 | }
737 | }
738 |
739 | /**
740 | * Configures the necessary {@link android.graphics.Matrix} transformation to `mTextureView`.
741 | * This method should be called after the camera preview size is determined in
742 | * setUpCameraOutputs and also the size of `mTextureView` is fixed.
743 | *
744 | * @param viewWidth The width of `mTextureView`
745 | * @param viewHeight The height of `mTextureView`
746 | */
747 | private void configureTransform(int viewWidth, int viewHeight) {
748 | Activity activity = getActivity();
749 | if (null == mTextureView || null == mPreviewSize || null == activity) {
750 | return;
751 | }
752 | int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
753 | Matrix matrix = new Matrix();
754 | RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);
755 | RectF bufferRect = new RectF(0, 0, mPreviewSize.getHeight(), mPreviewSize.getWidth());
756 | float centerX = viewRect.centerX();
757 | float centerY = viewRect.centerY();
758 | if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) {
759 | bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
760 | matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
761 | float scale = Math.max(
762 | (float) viewHeight / mPreviewSize.getHeight(),
763 | (float) viewWidth / mPreviewSize.getWidth());
764 | matrix.postScale(scale, scale, centerX, centerY);
765 | matrix.postRotate(90 * (rotation - 2), centerX, centerY);
766 | } else if (Surface.ROTATION_180 == rotation) {
767 | matrix.postRotate(180, centerX, centerY);
768 | }
769 | mTextureView.setTransform(matrix);
770 | }
771 |
772 | /**
773 | * Initiate a still image capture.
774 | */
775 | private void takePicture() {
776 | lockFocus();
777 | }
778 |
779 | /**
780 | * Lock the focus as the first step for a still image capture.
781 | */
782 | private void lockFocus() {
783 | try {
784 | // This is how to tell the camera to lock focus.
785 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_TRIGGER,
786 | CameraMetadata.CONTROL_AF_TRIGGER_START);
787 | // Tell #mCaptureCallback to wait for the lock.
788 | mState = STATE_WAITING_LOCK;
789 | mCaptureSession.capture(mPreviewRequestBuilder.build(), mCaptureCallback,
790 | mBackgroundHandler);
791 | } catch (CameraAccessException e) {
792 | e.printStackTrace();
793 | }
794 | }
795 |
796 | /**
797 | * Run the precapture sequence for capturing a still image. This method should be called when
798 | * we get a response in {@link #mCaptureCallback} from {@link #lockFocus()}.
799 | */
800 | private void runPrecaptureSequence() {
801 | try {
802 | // This is how to tell the camera to trigger.
803 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_PRECAPTURE_TRIGGER,
804 | CaptureRequest.CONTROL_AE_PRECAPTURE_TRIGGER_START);
805 | // Tell #mCaptureCallback to wait for the precapture sequence to be set.
806 | mState = STATE_WAITING_PRECAPTURE;
807 | mCaptureSession.capture(mPreviewRequestBuilder.build(), mCaptureCallback,
808 | mBackgroundHandler);
809 | } catch (CameraAccessException e) {
810 | e.printStackTrace();
811 | }
812 | }
813 |
814 | /**
815 | * Capture a still picture. This method should be called when we get a response in
816 | * {@link #mCaptureCallback} from both {@link #lockFocus()}.
817 | */
818 | private void captureStillPicture() {
819 | try {
820 | final Activity activity = getActivity();
821 | if (null == activity || null == mCameraDevice) {
822 | return;
823 | }
824 | // This is the CaptureRequest.Builder that we use to take a picture.
825 | final CaptureRequest.Builder captureBuilder =
826 | mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
827 | captureBuilder.addTarget(mImageReader.getSurface());
828 |
829 | // Use the same AE and AF modes as the preview.
830 | captureBuilder.set(CaptureRequest.CONTROL_AF_MODE,
831 | CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
832 | setAutoFlash(captureBuilder);
833 |
834 | // Orientation
835 | int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
836 | captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, getOrientation(rotation));
837 |
838 | CameraCaptureSession.CaptureCallback CaptureCallback
839 | = new CameraCaptureSession.CaptureCallback() {
840 |
841 | @Override
842 | public void onCaptureCompleted(@NonNull CameraCaptureSession session,
843 | @NonNull CaptureRequest request,
844 | @NonNull TotalCaptureResult result) {
845 | showToast("Saved: " + mFile);
846 | Log.d(TAG, mFile.toString());
847 | unlockFocus();
848 | }
849 | };
850 |
851 | mCaptureSession.stopRepeating();
852 | mCaptureSession.abortCaptures();
853 | mCaptureSession.capture(captureBuilder.build(), CaptureCallback, null);
854 | } catch (CameraAccessException e) {
855 | e.printStackTrace();
856 | }
857 | }
858 |
859 | /**
860 | * Retrieves the JPEG orientation from the specified screen rotation.
861 | *
862 | * @param rotation The screen rotation.
863 | * @return The JPEG orientation (one of 0, 90, 270, and 360)
864 | */
865 | private int getOrientation(int rotation) {
866 | // Sensor orientation is 90 for most devices, or 270 for some devices (eg. Nexus 5X)
867 | // We have to take that into account and rotate JPEG properly.
868 | // For devices with orientation of 90, we simply return our mapping from ORIENTATIONS.
869 | // For devices with orientation of 270, we need to rotate the JPEG 180 degrees.
870 | return (ORIENTATIONS.get(rotation) + mSensorOrientation + 270) % 360;
871 | }
872 |
873 | /**
874 | * Unlock the focus. This method should be called when still image capture sequence is
875 | * finished.
876 | */
877 | private void unlockFocus() {
878 | try {
879 | // Reset the auto-focus trigger
880 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_TRIGGER,
881 | CameraMetadata.CONTROL_AF_TRIGGER_CANCEL);
882 | setAutoFlash(mPreviewRequestBuilder);
883 | mCaptureSession.capture(mPreviewRequestBuilder.build(), mCaptureCallback,
884 | mBackgroundHandler);
885 | // After this, the camera will go back to the normal state of preview.
886 | mState = STATE_PREVIEW;
887 | mCaptureSession.setRepeatingRequest(mPreviewRequest, mCaptureCallback,
888 | mBackgroundHandler);
889 | } catch (CameraAccessException e) {
890 | e.printStackTrace();
891 | }
892 | }
893 |
894 | @Override
895 | public void onClick(View view) {
896 | switch (view.getId()) {
897 | case R.id.picture: {
898 | // takePicture();
899 |
900 | ((CameraActivity)getActivity()).click();
901 |
902 | break;
903 | }
904 | case R.id.info: {
905 | Activity activity = getActivity();
906 | if (null != activity) {
907 | new AlertDialog.Builder(activity)
908 | .setMessage(R.string.intro_message)
909 | .setPositiveButton(android.R.string.ok, null)
910 | .show();
911 | }
912 | break;
913 | }
914 | }
915 | }
916 |
917 | private void setAutoFlash(CaptureRequest.Builder requestBuilder) {
918 | if (mFlashSupported) {
919 | requestBuilder.set(CaptureRequest.CONTROL_AE_MODE,
920 | CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);
921 | }
922 | }
923 |
924 | /**
925 | * Saves a JPEG {@link Image} into the specified {@link File}.
926 | */
927 | private static class ImageSaver implements Runnable {
928 |
929 | /**
930 | * The JPEG image
931 | */
932 | private final Image mImage;
933 | /**
934 | * The file we save the image into.
935 | */
936 | private final File mFile;
937 |
938 | ImageSaver(Image image, File file) {
939 | mImage = image;
940 | mFile = file;
941 | }
942 |
943 | @Override
944 | public void run() {
945 | ByteBuffer buffer = mImage.getPlanes()[0].getBuffer();
946 | byte[] bytes = new byte[buffer.remaining()];
947 | buffer.get(bytes);
948 | FileOutputStream output = null;
949 | try {
950 | output = new FileOutputStream(mFile);
951 | output.write(bytes);
952 | } catch (IOException e) {
953 | e.printStackTrace();
954 | } finally {
955 | mImage.close();
956 | if (null != output) {
957 | try {
958 | output.close();
959 | } catch (IOException e) {
960 | e.printStackTrace();
961 | }
962 | }
963 | }
964 | }
965 |
966 | }
967 |
968 | /**
969 | * Compares two {@code Size}s based on their areas.
970 | */
971 | static class CompareSizesByArea implements Comparator {
972 |
973 | @Override
974 | public int compare(Size lhs, Size rhs) {
975 | // We cast here to ensure the multiplications won't overflow
976 | return Long.signum((long) lhs.getWidth() * lhs.getHeight() -
977 | (long) rhs.getWidth() * rhs.getHeight());
978 | }
979 |
980 | }
981 |
982 | /**
983 | * Shows an error message dialog.
984 | */
985 | public static class ErrorDialog extends DialogFragment {
986 |
987 | private static final String ARG_MESSAGE = "message";
988 |
989 | public static ErrorDialog newInstance(String message) {
990 | ErrorDialog dialog = new ErrorDialog();
991 | Bundle args = new Bundle();
992 | args.putString(ARG_MESSAGE, message);
993 | dialog.setArguments(args);
994 | return dialog;
995 | }
996 |
997 | @NonNull
998 | @Override
999 | public Dialog onCreateDialog(Bundle savedInstanceState) {
1000 | final Activity activity = getActivity();
1001 | return new AlertDialog.Builder(activity)
1002 | .setMessage(getArguments().getString(ARG_MESSAGE))
1003 | .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
1004 | @Override
1005 | public void onClick(DialogInterface dialogInterface, int i) {
1006 | activity.finish();
1007 | }
1008 | })
1009 | .create();
1010 | }
1011 |
1012 | }
1013 |
1014 | /**
1015 | * Shows OK/Cancel confirmation dialog about camera permission.
1016 | */
1017 | public static class ConfirmationDialog extends DialogFragment {
1018 |
1019 | @NonNull
1020 | @Override
1021 | public Dialog onCreateDialog(Bundle savedInstanceState) {
1022 | final Fragment parent = getParentFragment();
1023 | return new AlertDialog.Builder(getActivity())
1024 | .setMessage(R.string.request_permission)
1025 | .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
1026 | @Override
1027 | public void onClick(DialogInterface dialog, int which) {
1028 | parent.requestPermissions(new String[]{Manifest.permission.CAMERA},
1029 | REQUEST_CAMERA_PERMISSION);
1030 | }
1031 | })
1032 | .setNegativeButton(android.R.string.cancel,
1033 | new DialogInterface.OnClickListener() {
1034 | @Override
1035 | public void onClick(DialogInterface dialog, int which) {
1036 | Activity activity = parent.getActivity();
1037 | if (activity != null) {
1038 | activity.finish();
1039 | }
1040 | }
1041 | })
1042 | .create();
1043 | }
1044 | }
1045 |
1046 | }
1047 |
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/Application/src/main/java/com/example/android/camera2basic/CameraActivity.java:
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1 | /*
2 | * Copyright 2017 The Android Open Source Project
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 | package com.example.android.camera2basic;
18 |
19 | import android.media.AudioFormat;
20 | import android.media.AudioRecord;
21 | import android.media.MediaRecorder;
22 | import android.os.Bundle;
23 | import android.support.v7.app.AppCompatActivity;
24 | import android.widget.Toast;
25 |
26 | import cc.rome753.encodemp4.R;
27 | import cc.rome753.encodemp4.VideoRecorder;
28 |
29 | public class CameraActivity extends AppCompatActivity {
30 |
31 | private VideoRecorder mRecorder;
32 | private String path;
33 |
34 | @Override
35 | protected void onCreate(Bundle savedInstanceState) {
36 | super.onCreate(savedInstanceState);
37 | setContentView(R.layout.activity_camera);
38 | if (null == savedInstanceState) {
39 | getSupportFragmentManager().beginTransaction()
40 | .replace(R.id.container, Camera2BasicFragment.newInstance())
41 | .commit();
42 | }
43 | }
44 |
45 | public void click() {
46 | if(mRecorder == null) {
47 | Toast.makeText(this, "start record...", Toast.LENGTH_SHORT).show();
48 | startRecord();
49 | path = getExternalCacheDir() + "/record-" + System.currentTimeMillis() + ".mp4";
50 | mRecorder = new VideoRecorder(path);
51 | mRecorder.start();
52 | } else {
53 | Toast.makeText(this, "saved: " + path, Toast.LENGTH_LONG).show();
54 | stopRecord();
55 | mRecorder.stop();
56 | mRecorder = null;
57 | }
58 | }
59 |
60 | public void addVideoData(byte[] data) {
61 | if(mRecorder != null) {
62 | mRecorder.addVideoData(data);
63 | }
64 | }
65 |
66 | private Thread recordThread;
67 | private boolean isStart = false;
68 | private int bufferSize = AudioRecord.getMinBufferSize(44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
69 | private AudioRecord mAudioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, 44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferSize * 2);
70 |
71 | /**
72 | * 销毁线程方法
73 | */
74 | private void destroyThread() {
75 | try {
76 | isStart = false;
77 | if (null != recordThread && Thread.State.RUNNABLE == recordThread.getState()) {
78 | try {
79 | Thread.sleep(500);
80 | recordThread.interrupt();
81 | } catch (Exception e) {
82 | recordThread = null;
83 | }
84 | }
85 | recordThread = null;
86 | } catch (Exception e) {
87 | e.printStackTrace();
88 | } finally {
89 | recordThread = null;
90 | }
91 | }
92 |
93 | /**
94 | * 启动录音线程
95 | */
96 | private void startThread() {
97 | destroyThread();
98 | isStart = true;
99 | if (recordThread == null) {
100 | recordThread = new Thread(recordRunnable);
101 | recordThread.start();
102 | }
103 | }
104 |
105 | /**
106 | * 录音线程
107 | */
108 | Runnable recordRunnable = new Runnable() {
109 | @Override
110 | public void run() {
111 | try {
112 | android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_AUDIO);
113 | int bytesRecord;
114 | //int bufferSize = 320;
115 | byte[] tempBuffer = new byte[bufferSize];
116 | if (mAudioRecord.getState() != AudioRecord.STATE_INITIALIZED) {
117 | stopRecord();
118 | return;
119 | }
120 | mAudioRecord.startRecording();
121 | //writeToFileHead();
122 | while (isStart) {
123 | if (null != mAudioRecord) {
124 | bytesRecord = mAudioRecord.read(tempBuffer, 0, bufferSize);
125 | if (bytesRecord == AudioRecord.ERROR_INVALID_OPERATION || bytesRecord == AudioRecord.ERROR_BAD_VALUE) {
126 | continue;
127 | }
128 | if (bytesRecord != 0 && bytesRecord != -1) {
129 | if(mRecorder != null) {
130 | mRecorder.addAudioData(tempBuffer);
131 | }
132 | } else {
133 | break;
134 | }
135 | }
136 | }
137 | } catch (Exception e) {
138 | e.printStackTrace();
139 | }
140 | }
141 |
142 | };
143 |
144 | /**
145 | * 启动录音
146 | *
147 | */
148 | public void startRecord() {
149 | try {
150 | startThread();
151 | } catch (Exception e) {
152 | e.printStackTrace();
153 | }
154 | }
155 |
156 | /**
157 | * 停止录音
158 | */
159 | public void stopRecord() {
160 | try {
161 | destroyThread();
162 | if (mAudioRecord != null) {
163 | if (mAudioRecord.getState() == AudioRecord.STATE_INITIALIZED) {
164 | mAudioRecord.stop();
165 | }
166 | if (mAudioRecord != null) {
167 | mAudioRecord.release();
168 | }
169 | }
170 | } catch (Exception e) {
171 | e.printStackTrace();
172 | }
173 | }
174 |
175 |
176 |
177 | }
178 |
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--------------------------------------------------------------------------------
/Application/src/main/res/values-v11/template-styles.xml:
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1 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
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/Application/src/main/res/values-v21/base-colors.xml:
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1 |
2 |
17 |
18 |
19 |
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21 |
22 |
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/Application/src/main/res/values-v21/base-template-styles.xml:
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1 |
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20 |
21 |
23 |
24 |
25 |
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/Application/src/main/res/values/base-strings.xml:
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1 |
2 |
17 |
18 |
19 | EncodeMP4
20 |
21 |
29 |
30 |
31 |
--------------------------------------------------------------------------------
/Application/src/main/res/values/colors.xml:
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1 |
2 |
17 |
18 | #cc4285f4
19 |
20 |
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/Application/src/main/res/values/strings.xml:
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1 |
16 |
17 | Picture
18 | Info
19 | This sample needs camera permission.
20 | This device doesn\'t support Camera2 API.
21 |
22 |
--------------------------------------------------------------------------------
/Application/src/main/res/values/styles.xml:
--------------------------------------------------------------------------------
1 |
16 |
17 |
20 |
21 |
--------------------------------------------------------------------------------
/Application/src/main/res/values/template-dimens.xml:
--------------------------------------------------------------------------------
1 |
16 |
17 |
18 |
19 |
20 |
21 | 4dp
22 | 8dp
23 | 16dp
24 | 32dp
25 | 64dp
26 |
27 |
28 |
29 | @dimen/margin_medium
30 | @dimen/margin_medium
31 |
32 |
33 |
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/Application/src/main/res/values/template-styles.xml:
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1 |
16 |
17 |
18 |
19 |
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21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
34 |
35 |
41 |
42 |
43 |
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/Application/tests/AndroidManifest.xml:
--------------------------------------------------------------------------------
1 |
2 |
17 |
18 |
22 |
23 |
24 |
25 |
28 |
29 |
30 |
31 |
32 |
35 |
39 |
40 |
41 |
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/Application/tests/src/com/example/android/camera2basic/tests/SampleTests.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2013 The Android Open Source Project
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 | package com.example.android.camera2basic.tests;
17 |
18 | import com.example.android.camera2basic.*;
19 |
20 | import android.test.ActivityInstrumentationTestCase2;
21 |
22 | /**
23 | * Tests for Camera2Basic sample.
24 | */
25 | public class SampleTests extends ActivityInstrumentationTestCase2 {
26 |
27 | private CameraActivity mTestActivity;
28 |
29 | public SampleTests() {
30 | super(CameraActivity.class);
31 | }
32 |
33 | @Override
34 | protected void setUp() throws Exception {
35 | super.setUp();
36 |
37 | // Starts the activity under test using the default Intent with:
38 | // action = {@link Intent#ACTION_MAIN}
39 | // flags = {@link Intent#FLAG_ACTIVITY_NEW_TASK}
40 | // All other fields are null or empty.
41 | mTestActivity = getActivity();
42 | }
43 |
44 | /**
45 | * Test if the test fixture has been set up correctly.
46 | */
47 | public void testPreconditions() {
48 | //Try to add a message to add context to your assertions. These messages will be shown if
49 | //a tests fails and make it easy to understand why a test failed
50 | assertNotNull("mTestActivity is null", mTestActivity);
51 | }
52 |
53 | /**
54 | * Add more tests below.
55 | */
56 |
57 | }
58 |
--------------------------------------------------------------------------------
/CONTRIB.md:
--------------------------------------------------------------------------------
1 | # How to become a contributor and submit your own code
2 |
3 | ## Contributor License Agreements
4 |
5 | We'd love to accept your sample apps and patches! Before we can take them, we
6 | have to jump a couple of legal hurdles.
7 |
8 | Please fill out either the individual or corporate Contributor License Agreement (CLA).
9 |
10 | * If you are an individual writing original source code and you're sure you
11 | own the intellectual property, then you'll need to sign an [individual CLA]
12 | (https://developers.google.com/open-source/cla/individual).
13 | * If you work for a company that wants to allow you to contribute your work,
14 | then you'll need to sign a [corporate CLA]
15 | (https://developers.google.com/open-source/cla/corporate).
16 |
17 | Follow either of the two links above to access the appropriate CLA and
18 | instructions for how to sign and return it. Once we receive it, we'll be able to
19 | accept your pull requests.
20 |
21 | ## Contributing A Patch
22 |
23 | 1. Submit an issue describing your proposed change to the repo in question.
24 | 1. The repo owner will respond to your issue promptly.
25 | 1. If your proposed change is accepted, and you haven't already done so, sign a
26 | Contributor License Agreement (see details above).
27 | 1. Fork the desired repo, develop and test your code changes.
28 | 1. Ensure that your code adheres to the existing style in the sample to which
29 | you are contributing. Refer to the
30 | [Android Code Style Guide]
31 | (https://source.android.com/source/code-style.html) for the
32 | recommended coding standards for this organization.
33 | 1. Ensure that your code has an appropriate set of unit tests which all pass.
34 | 1. Submit a pull request.
35 |
36 |
--------------------------------------------------------------------------------
/CONTRIBUTING.md:
--------------------------------------------------------------------------------
1 | # How to become a contributor and submit your own code
2 |
3 | ## Contributor License Agreements
4 |
5 | We'd love to accept your sample apps and patches! Before we can take them, we
6 | have to jump a couple of legal hurdles.
7 |
8 | Please fill out either the individual or corporate Contributor License Agreement (CLA).
9 |
10 | * If you are an individual writing original source code and you're sure you
11 | own the intellectual property, then you'll need to sign an [individual CLA]
12 | (https://cla.developers.google.com).
13 | * If you work for a company that wants to allow you to contribute your work,
14 | then you'll need to sign a [corporate CLA]
15 | (https://cla.developers.google.com).
16 |
17 | Follow either of the two links above to access the appropriate CLA and
18 | instructions for how to sign and return it. Once we receive it, we'll be able to
19 | accept your pull requests.
20 |
21 | ## Contributing A Patch
22 |
23 | 1. Submit an issue describing your proposed change to the repo in question.
24 | 1. The repo owner will respond to your issue promptly.
25 | 1. If your proposed change is accepted, and you haven't already done so, sign a
26 | Contributor License Agreement (see details above).
27 | 1. Fork the desired repo, develop and test your code changes.
28 | 1. Ensure that your code adheres to the existing style in the sample to which
29 | you are contributing. Refer to the
30 | [Android Code Style Guide]
31 | (https://source.android.com/source/code-style.html) for the
32 | recommended coding standards for this organization.
33 | 1. Ensure that your code has an appropriate set of unit tests which all pass.
34 | 1. Submit a pull request.
35 |
36 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
1 | Apache License
2 | Version 2.0, January 2004
3 | http://www.apache.org/licenses/
4 |
5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # android-encode-mp4
2 | 使用MediaCodec和MediaMuxer合成mp4视频
3 | [中文文档](https://www.jianshu.com/p/9512defaa8c1)
4 |
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/build.gradle:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
--------------------------------------------------------------------------------
/gradle/wrapper/gradle-wrapper.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/rome753/android-encode-mp4/94cf4f9a6aa2b77c763768b9cfea4cf2af39961f/gradle/wrapper/gradle-wrapper.jar
--------------------------------------------------------------------------------
/gradle/wrapper/gradle-wrapper.properties:
--------------------------------------------------------------------------------
1 | #Wed May 22 14:25:30 CST 2019
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-5.1.1-all.zip
7 |
--------------------------------------------------------------------------------
/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 | # For Cygwin, ensure paths are in UNIX format before anything is touched.
46 | if $cygwin ; then
47 | [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
48 | fi
49 |
50 | # Attempt to set APP_HOME
51 | # Resolve links: $0 may be a link
52 | PRG="$0"
53 | # Need this for relative symlinks.
54 | while [ -h "$PRG" ] ; do
55 | ls=`ls -ld "$PRG"`
56 | link=`expr "$ls" : '.*-> \(.*\)$'`
57 | if expr "$link" : '/.*' > /dev/null; then
58 | PRG="$link"
59 | else
60 | PRG=`dirname "$PRG"`"/$link"
61 | fi
62 | done
63 | SAVED="`pwd`"
64 | cd "`dirname \"$PRG\"`/" >&-
65 | APP_HOME="`pwd -P`"
66 | cd "$SAVED" >&-
67 |
68 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
69 |
70 | # Determine the Java command to use to start the JVM.
71 | if [ -n "$JAVA_HOME" ] ; then
72 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
73 | # IBM's JDK on AIX uses strange locations for the executables
74 | JAVACMD="$JAVA_HOME/jre/sh/java"
75 | else
76 | JAVACMD="$JAVA_HOME/bin/java"
77 | fi
78 | if [ ! -x "$JAVACMD" ] ; then
79 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
80 |
81 | Please set the JAVA_HOME variable in your environment to match the
82 | location of your Java installation."
83 | fi
84 | else
85 | JAVACMD="java"
86 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
87 |
88 | Please set the JAVA_HOME variable in your environment to match the
89 | location of your Java installation."
90 | fi
91 |
92 | # Increase the maximum file descriptors if we can.
93 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
94 | MAX_FD_LIMIT=`ulimit -H -n`
95 | if [ $? -eq 0 ] ; then
96 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
97 | MAX_FD="$MAX_FD_LIMIT"
98 | fi
99 | ulimit -n $MAX_FD
100 | if [ $? -ne 0 ] ; then
101 | warn "Could not set maximum file descriptor limit: $MAX_FD"
102 | fi
103 | else
104 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
105 | fi
106 | fi
107 |
108 | # For Darwin, add options to specify how the application appears in the dock
109 | if $darwin; then
110 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
111 | fi
112 |
113 | # For Cygwin, switch paths to Windows format before running java
114 | if $cygwin ; then
115 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
116 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
117 |
118 | # We build the pattern for arguments to be converted via cygpath
119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
120 | SEP=""
121 | for dir in $ROOTDIRSRAW ; do
122 | ROOTDIRS="$ROOTDIRS$SEP$dir"
123 | SEP="|"
124 | done
125 | OURCYGPATTERN="(^($ROOTDIRS))"
126 | # Add a user-defined pattern to the cygpath arguments
127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
129 | fi
130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
131 | i=0
132 | for arg in "$@" ; do
133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
135 |
136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
138 | else
139 | eval `echo args$i`="\"$arg\""
140 | fi
141 | i=$((i+1))
142 | done
143 | case $i in
144 | (0) set -- ;;
145 | (1) set -- "$args0" ;;
146 | (2) set -- "$args0" "$args1" ;;
147 | (3) set -- "$args0" "$args1" "$args2" ;;
148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
154 | esac
155 | fi
156 |
157 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
158 | function splitJvmOpts() {
159 | JVM_OPTS=("$@")
160 | }
161 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
162 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
163 |
164 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
165 |
--------------------------------------------------------------------------------
/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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/packaging.yaml:
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1 | # GOOGLE SAMPLE PACKAGING DATA
2 | #
3 | # This file is used by Google as part of our samples packaging process.
4 | # End users may safely ignore this file. It has no relevance to other systems.
5 | ---
6 |
7 | status: PUBLISHED
8 | technologies: [Android]
9 | categories: [Media]
10 | languages: [Java]
11 | solutions: [Mobile]
12 | github: googlesamples/android-Camera2Basic
13 | level: BEGINNER
14 | icon: Camera2BasicSample/src/main/res/drawable-xxhdpi/ic_launcher.png
15 | license: apache2
16 |
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/settings.gradle:
--------------------------------------------------------------------------------
1 | include 'Application'
2 |
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