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53 lines
1.5 KiB
53 lines
1.5 KiB
package com.frank.ffmpeg;
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import android.media.AudioFormat;
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import android.media.AudioManager;
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import android.media.AudioTrack;
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/**
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* VideoPlayer: using FFmpeg filter
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* Created by frank on 2018/2/1
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*/
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public class VideoPlayer {
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static {
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System.loadLibrary("media-handle");
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}
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public native int play(String filePath, Object surface);
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public native void setPlayRate(float playRate);
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public native int filter(String filePath, Object surface, int position);
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public native void again(int position);
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public native void release();
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public native void playAudio(boolean play);
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/**
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* Create an AudioTrack instance for JNI calling
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*
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* @param sampleRate sampleRate
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* @param channels channel layout
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* @return AudioTrack
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*/
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public AudioTrack createAudioTrack(int sampleRate, int channels) {
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int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
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int channelConfig;
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if (channels == 1) {
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channelConfig = AudioFormat.CHANNEL_OUT_MONO;
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} else if (channels == 2) {
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channelConfig = AudioFormat.CHANNEL_OUT_STEREO;
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} else {
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channelConfig = AudioFormat.CHANNEL_OUT_STEREO;
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}
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int bufferSizeInBytes = AudioTrack.getMinBufferSize(sampleRate, channelConfig, audioFormat);
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return new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate, channelConfig, audioFormat,
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bufferSizeInBytes, AudioTrack.MODE_STREAM);
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}
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}
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