Android RTSP 영상 재생하기

Android RTSP 영상 재생하기

RTSP란?

2023.04.11 - [Protocol] - RTSP(Real Time Streaming Protocol)

RTSP(Real Time Streaming Protocol)

안드로이드로 RTSP 영상을 재생하려면 ExoPlayer가 필요하다

ExoPlayer

https://exoplayer.dev/hello-world.html

Hello world! - ExoPlayer

 

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순서

1. Add ExoPlayer as a dependency to your project.
2. Create an ExoPlayer instance.
3. Attach the player to a view (for video output and user input).
4. Prepare the player with a MediaItem to play.
5. Release the player when done.

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Add ExoPlayer as a dependency to your project

 

안드로이드 build.grade에 exoplayer2.18.4 종속성을 추가한다

implementation 'com.google.android.exoplayer:exoplayer:2.18.4'

 

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Android 레이아웃 설정

activity_main.xml

화면 중앙에 영상보기 버튼을 하나 만든다.

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/seeVideo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="영상보기"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.5" />
</androidx.constraintlayout.widget.ConstraintLayout>

see_video.xml

영상을 실행해서 보여줄 수 있는 Veiw를 만든다.

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    >

    <com.google.android.exoplayer2.ui.StyledPlayerView
        android:id="@+id/playerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>

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Android Activity 작성

MainActivity에는 영상보기 버튼을 클릭하면 seeVideo Activity를 시작할 수 있게 한다

package com.example.rtsp;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button seeVideo = (Button) findViewById(R.id.seeVideo);
        seeVideo.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {
                Intent intent = new Intent(getApplicationContext(), seeVideo.class);
                startActivity(intent);
            }

        });
    }
}

seeVideo Activity 작성

StyledPlayerView와 ExoPlayer객체를 생성하고 StyledPlayerView에는 see_video.xml에서 정의한 View를 가지도록 한다. 

Player객체에는 어떤 RTSP URI를 가지고 동영상을 재생할 것인지 설정하고 뒤로가기 버튼을 누르면 Release() 함수를 실행하도록 만든다.

package com.example.rtsp;

import android.os.Bundle;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import com.google.android.exoplayer2.ExoPlayer;
import com.google.android.exoplayer2.MediaItem;
import com.google.android.exoplayer2.ui.StyledPlayerView;

public class seeVideo extends AppCompatActivity {

    private final String rtspURL = "rtsp://210.99.70.120:1935/live/cctv002.stream";
    private ExoPlayer player;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.see_video);
        StyledPlayerView playerView = findViewById(R.id.playerView);

        player = new ExoPlayer.Builder(seeVideo.this).build();
        playerView.setPlayer(player);
        MediaItem mediaItem = MediaItem.fromUri(rtspURL);
        player.setMediaItem(mediaItem);
        player.prepare();
        player.play();
    }

    @Override
    public void onBackPressed() {
        super.onBackPressed();
        player.release();
    }
}

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결과

영상보기 버튼을 누르면 로딩이 되고 동영상이 재생이 된다.

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RTSP 주소

RTSP 주소는 공공데이터 포털에서 충청남도 천안시_교통정보 CCTV 데이터의 RTSP 주소를 가져왔다.

https://www.data.go.kr/data/15063717/fileData.do

충청남도 천안시_교통정보 CCTV_20220922