以下是一些有关视频录制的链接:
如何在 Android 上捕获视频录制? https://github.com/churnlabs/android-ffmpeg-sample
还有很多关于视频录制的链接,但不知道如何使用远程 IP 摄像机录制视频。通过在stackoverflow上使用不同的样本,我可以拍照并保存在sdcard上,但无法录制视频。
如果有人有任何想法或代码以及所需的文件,我将不胜感激。
例如,我在 IP 摄像机可用的地方使用的 url 如下所示:
这是布局代码:
<RelativeLayout
android:id="@+id/LinearLayout02"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/logo"
android:layout_alignParentTop="true"
android:layout_weight="1" >
<ImageButton
android:id="@+id/btnCam"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="10dp"
android:layout_marginTop="10dp"
android:src="@drawable/camera_icon" >
</ImageButton>
<ImageButton
android:id="@+id/btnVideo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginRight="10dp"
android:layout_marginTop="10dp"
android:src="@drawable/camera_icon" >
</ImageButton>
</RelativeLayout>
<LinearLayout
android:id="@+id/LinearLayout03"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="@+id/LinearLayout01"
android:layout_below="@+id/LinearLayout02"
android:layout_weight="1" >
<RelativeLayout
android:id="@+id/RelativeLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:background="#ffffff" >
<view
android:id="@+id/mv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
class="com.apps.GrahamConst.MjpegView" />
</RelativeLayout>
</LinearLayout>
<LinearLayout
android:id="@+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_weight="1"
android:background="@drawable/navbar" >
<ImageButton
android:id="@+id/btnPrevious"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal"
android:layout_weight="1"
android:background="@null"
android:src="@drawable/previous" >
</ImageButton>
<ImageButton
android:id="@+id/btnMain"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal"
android:layout_weight="1"
android:background="@null"
android:src="@drawable/main" >
</ImageButton>
<ImageButton
android:id="@+id/btnNext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal"
android:layout_weight="1"
android:background="@null"
android:src="@drawable/next" >
</ImageButton>
</LinearLayout>
</RelativeLayout>
这是我的活动
public class CameraDetails2 extends Activity implements OnClickListener {
private MediaScannerConnection m_pScanner;
String drawable = null;
private MjpegView mv;
private ProgressDialog dialog;
private HashMap<String, String> item;
private int id = -1;
private WindowManager winMan;
boolean recording = false;
MediaRecorder recorder;
int bytearraysize = 0;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
winMan = (WindowManager) getApplicationContext().getSystemService(
Context.WINDOW_SERVICE);
if (winMan != null) {
int orientation = winMan.getDefaultDisplay().getOrientation();
if (orientation == 0) {
// Portrait
setContentView(R.layout.cameradetails);
} else if (orientation == 1) {
// Landscape
setContentView(R.layout.cameradetailsl);
}
}
Bundle b = getIntent().getExtras();
ImageButton b1 = (ImageButton) findViewById(R.id.btnNext);
b1.setOnClickListener(this);
ImageButton b2 = (ImageButton) findViewById(R.id.btnMain);
b2.setOnClickListener(this);
ImageButton b3 = (ImageButton) findViewById(R.id.btnPrevious);
b3.setOnClickListener(this);
ImageButton b4 = (ImageButton) findViewById(R.id.btnCam);
b4.setOnClickListener(this);
ImageButton b5 = (ImageButton) findViewById(R.id.btnVideo);
b5.setOnClickListener(this);
id = Integer.valueOf(b.get("id").toString());
item = listarrayadapter.cameraList.get(Integer.valueOf(id));
mv = (MjpegView) findViewById(R.id.mv);
try {
getVal(item.get("cameraLink"));
// getVal("http://trackfield.webcam.oregonstate.edu/axis-cgi/mjpg
/video.cgi?resolution=800x600&%3bdummy=1333689998337");
} catch (Exception e) {
e.printStackTrace();
mv.setBackgroundResource(R.drawable.offline);
}
}
@Override
protected void onResume() {
// if(recording)
// {
// getVal("http://trackfield.webcam.oregonstate.edu/axis-cgi/mjpg
/video.cgi?resolution=800x600&%3bdummy=1333689998337");
// }
super.onResume();
}
public void onPause() {
super.onPause();
dialog.dismiss();
mv.stopPlayback();
}
private void getVal(final String url) {
Log.i("URL===", url);
updateButtons();
dialog = ProgressDialog.show(this, null, null, true);
final Handler handler = new Handler() {
public void handleMessage(Message msg) {
dialog.dismiss();
}
};
Thread checkUpdate = null;
checkUpdate = new Thread() {
public void run() {
mv.setSource(MjpegInputStream.read(url));
mv.setDisplayMode(MjpegView.SIZE_FULLSCREEN);
handler.sendEmptyMessage(0);
}
};
checkUpdate.start();
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int btn = v.getId();
if (btn == R.id.btnMain) {
Intent intent = new Intent();
intent.setClass(CameraDetails2.this, CamerasList.class);
startActivity(intent);
finish();
}
if (btn == R.id.btnNext) {
id += 1;
Intent myintent = new Intent(CameraDetails2.this,
CameraDetails.class);
myintent.putExtra("id", id);
startActivity(myintent);
finish();
}
if (btn == R.id.btnPrevious) {
id -= 1;
Intent myintent = new Intent(CameraDetails2.this,
CameraDetails.class);
myintent.putExtra("id", id);
startActivity(myintent);
finish();
}
if (btn == R.id.btnCam) {
if (mv != null) {
Date dt = new Date();
int years = dt.getYear();
int month = dt.getMonth();
int day = dt.getDay();
int hours = dt.getHours();
int minutes = dt.getMinutes();
int seconds = dt.getSeconds();
final String filename = years + "" + month + "" + day + ""
+ hours + "" + minutes + "" + seconds;
try {
Bitmap image = MjpegView.savebmp;
File SDCardRoot =
Environment.getExternalStorageDirectory();
FileOutputStream fileOutputStream = null;
fileOutputStream = new FileOutputStream(
SDCardRoot.toString() + "/" +
filename + ".jpg");
BufferedOutputStream bos = new
BufferedOutputStream(
fileOutputStream);
int quality = 95;
image.compress(CompressFormat.JPEG, quality, bos);
final String szFile = SDCardRoot.toString() + "/"
+ filename + ".jpg";
m_pScanner = new MediaScannerConnection(this,
new MediaScannerConnectionClient()
{
public void
onMediaScannerConnected() {
m_pScanner
.scanFile(szFile, null /* mimeType */);
}
public void
onScanCompleted(String path, Uri uri) {
if
(path.equals(szFile)) {
CameraDetails2.this
.runOnUiThread(new Runnable() {
public void run() {
Toast.makeText(
getApplicationContext(),
"Image Saved.",
Toast.LENGTH_LONG)
.show();
}
});
m_pScanner.disconnect();
}
}
});
m_pScanner.connect();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
if (btn == R.id.btnVideo) {
if (recording) {
// stop and save
recording = false;
MjpegInputStream.isrecording = false;
List<byte[]> bytelist = new ArrayList<byte[]>();
ArrayList<ByteArrayOutputStream> byteArrayStream =
MjpegInputStream.byteArrayStream;
for (int i = 0; i < byteArrayStream.size(); i++) {
byte[] templist
=byteArrayStream.get(i).toByteArray();
bytelist.add(templist);
}
for (int j = 0; j < bytelist.size(); j++) {
bytearraysize += bytelist.get(j).length;
}
byte[] totalbytes = new byte[bytearraysize];
int f = 0;
for (int j = 0; j < bytelist.size(); j++) {
for (int a = 0; a < bytelist.get(j).length; a++) {
totalbytes[f] = bytelist.get(j)[a];
f++;
}
}
Log.e("num of bytes", "" + totalbytes.length);
// Byte[] bytes = bytelist.toArray(new
//Byte[bytelist.size()]);
try {
writeToFile(totalbytes, "" +
System.currentTimeMillis());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
recording = true;
MjpegInputStream.isrecording = true;
// onResume();
// start recording
}
// recorder=new MediaRecorder();
// try {
// recorder.prepare();
// } catch (IllegalStateException e) {
// e.printStackTrace();
// finish();
// } catch (IOException e) {
// e.printStackTrace();
// finish();
// }
//
// //recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
// // recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
//
// //
// //
// // CamcorderProfile cpHigh = CamcorderProfile
// // .get(CamcorderProfile.QUALITY_HIGH);
// // recorder.setProfile(cpHigh);
// recorder.setVideoSource(mv.getId());
// recorder.setOutputFile("/sdcard/videocapture_example.mp4");
// recorder.setMaxDuration(50000); // 50 seconds
// recorder.setMaxFileSize(5000000); // Approximately 5 megabytes
}
}
public void writeToFile(byte[] bytes, String videoname) throws IOException {
try {
Log.e("num of bytes to be saved", "" + bytes.length);
String path = "/sdcard/" + videoname + ".mp4";
FileOutputStream stream = new FileOutputStream(path);
stream.write(bytes);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
private void updateButtons() {
ImageButton btnNext = (ImageButton) findViewById(R.id.btnNext);
ImageButton btnPrevious = (ImageButton) findViewById(R.id.btnPrevious);
if (id == 0) {
btnPrevious.setEnabled(false);
} else {
btnPrevious.setEnabled(true);
}
if (id == listarrayadapter.cameraList.size() - 1) {
btnNext.setEnabled(false);
} else {
btnNext.setEnabled(true);
}
}
}