MainActivity.java
package com.example.androidmediacodec;
import android.annotation.TargetApi;
import android.media.MediaCodecInfo;
import android.media.MediaCodecList;
import android.os.Build;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
public class MainActivity extends ActionBarActivity {
TextView textInfo;
TextView textCodecCount;
Spinner spinnerMediaCodec;
TextView textCodecname;
TextView textIsEncoder;
Spinner spinnerSupportedType;
MediaCodecInfo[] mediaCodecInfo;
String[] mediaCodecName;
ArrayAdapter<String> mediaCodecAdapter;
String[] supportedType;
ArrayAdapter<String> supportedTypeAdapter;
TextView textCapabilities;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textInfo = (TextView) findViewById(R.id.textinfo);
textCodecCount = (TextView) findViewById(R.id.textcodeccount);
spinnerMediaCodec = (Spinner) findViewById(R.id.spMediaCodec);
textCodecname = (TextView) findViewById(R.id.textcodecname);
textIsEncoder = (TextView) findViewById(R.id.textisEncoder);
spinnerSupportedType = (Spinner) findViewById(R.id.spsupportedType);
textCapabilities = (TextView)findViewById(R.id.textcapabilities);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
getCodecInfo_21();
}else{
getCodecInfo_16();
}
mediaCodecName = new String[mediaCodecInfo.length];
for(int i = 0; i < mediaCodecInfo.length; i++){
mediaCodecName[i] = mediaCodecInfo[i].getName();
}
mediaCodecAdapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item,
mediaCodecName);
mediaCodecAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinnerMediaCodec.setAdapter(mediaCodecAdapter);
spinnerMediaCodec.setOnItemSelectedListener(mediaCodecOnItemSelectedListener);
}
AdapterView.OnItemSelectedListener mediaCodecOnItemSelectedListener =
new AdapterView.OnItemSelectedListener(){
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
final MediaCodecInfo selMediaCodecInfo = mediaCodecInfo[position];
textCodecname.setText(selMediaCodecInfo.getName());
textIsEncoder.setText("isEncoder: " + selMediaCodecInfo.isEncoder());
supportedType = selMediaCodecInfo.getSupportedTypes();
supportedTypeAdapter = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item,
supportedType);
supportedTypeAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinnerSupportedType.setAdapter(supportedTypeAdapter);
spinnerSupportedType.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener(){
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String type = (String) parent.getItemAtPosition(position);
//...you can get more details from codecCapabilities
MediaCodecInfo.CodecCapabilities codecCapabilities = selMediaCodecInfo.getCapabilitiesForType(type);
textCapabilities.setText(codecCapabilities.toString());
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
textCapabilities.append("\n" + "MimeType: " + codecCapabilities.getMimeType());
textCapabilities.append("\n" + "DefaultFormat: " + codecCapabilities.getDefaultFormat().toString());
}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {}
});
}
@Override
public void onNothingSelected(AdapterView<?> parent) {}
};
//Added in API level 16
//deprecated in API level 21
//ref:
//http://developer.android.com/reference/android/media/MediaCodecInfo.html
private void getCodecInfo_16(){
textInfo.setText("API < 21");
int numCodecs = MediaCodecList.getCodecCount();
mediaCodecInfo = new MediaCodecInfo[numCodecs];
for (int i = 0; i < numCodecs; i++) {
MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);
mediaCodecInfo[i] = codecInfo;
}
textCodecCount.setText("Number of Codec: " + numCodecs);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void getCodecInfo_21() {
textInfo.setText("API >= 21");
MediaCodecList mediaCodecList = new MediaCodecList(MediaCodecList.ALL_CODECS);
//MediaCodecList mediaCodecList = new MediaCodecList(MediaCodecList.REGULAR_CODECS);
mediaCodecInfo = mediaCodecList.getCodecInfos();
textCodecCount.setText("Number of Codec: " + mediaCodecInfo.length);
}
}
layout/activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:paddingTop="16dp"
android:paddingBottom="16dp"
android:orientation="vertical"
tools:context=".MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />
<TextView
android:id="@+id/textinfo"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/textcodeccount"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Spinner
android:id="@+id/spMediaCodec"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/textcodecname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textStyle="bold"/>
<TextView
android:id="@+id/textisEncoder"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textStyle="italic"/>
<Spinner
android:id="@+id/spsupportedType"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#B0B0B0"/>
<TextView
android:id="@+id/textcapabilities"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textStyle="italic"/>
</LinearLayout>
Test on Nexus 7 running Android 5.1.1
Test on Redmi 2 running Android 4.4.4
Download the files (Android Studio Format).Download the APK to test on your device.Android Studio - too slow!!!
I try to force myself to switch to Android Studio. A suppose one hour example using Eclipse, now use up to 5 hours using Android Studio!
