From bc864c5e2f47fe0af5bfe798cbdc6ef6dfb74450 Mon Sep 17 00:00:00 2001 From: frank <839789740@qq.com> Date: Wed, 9 May 2018 23:08:56 +0800 Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0PCM=E8=A3=B8=E6=B5=81?= =?UTF-8?q?=E9=9F=B3=E9=A2=91=E6=96=87=E4=BB=B6=E7=9A=84=E5=90=88=E5=B9=B6?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../ffmpeg/activity/AudioHandleActivity.java | 21 +++++- .../java/com/frank/ffmpeg/util/FileUtil.java | 69 +++++++++++++++++++ .../main/res/layout/activity_audio_handle.xml | 11 ++- app/src/main/res/values/strings.xml | 1 + 4 files changed, 98 insertions(+), 4 deletions(-) create mode 100644 app/src/main/java/com/frank/ffmpeg/util/FileUtil.java diff --git a/app/src/main/java/com/frank/ffmpeg/activity/AudioHandleActivity.java b/app/src/main/java/com/frank/ffmpeg/activity/AudioHandleActivity.java index f08e3f3..aea48b0 100644 --- a/app/src/main/java/com/frank/ffmpeg/activity/AudioHandleActivity.java +++ b/app/src/main/java/com/frank/ffmpeg/activity/AudioHandleActivity.java @@ -15,6 +15,7 @@ import com.frank.ffmpeg.AudioPlayer; import com.frank.ffmpeg.FFmpegCmd; import com.frank.ffmpeg.R; import com.frank.ffmpeg.util.FFmpegUtil; +import com.frank.ffmpeg.util.FileUtil; /** * 使用ffmpeg处理音频 @@ -68,6 +69,7 @@ public class AudioHandleActivity extends AppCompatActivity implements View.OnCli findViewById(R.id.btn_play_audio).setOnClickListener(this); findViewById(R.id.btn_play_opensl).setOnClickListener(this); findViewById(R.id.btn_audio_encode).setOnClickListener(this); + findViewById(R.id.btn_pcm_concat).setOnClickListener(this); } private void setVisible() { @@ -78,6 +80,7 @@ public class AudioHandleActivity extends AppCompatActivity implements View.OnCli findViewById(R.id.btn_play_audio).setVisibility(View.VISIBLE); findViewById(R.id.btn_play_opensl).setVisibility(View.VISIBLE); findViewById(R.id.btn_audio_encode).setVisibility(View.VISIBLE); + findViewById(R.id.btn_pcm_concat).setVisibility(View.VISIBLE); } private void setGone() { @@ -88,6 +91,7 @@ public class AudioHandleActivity extends AppCompatActivity implements View.OnCli findViewById(R.id.btn_play_audio).setVisibility(View.GONE); findViewById(R.id.btn_play_opensl).setVisibility(View.GONE); findViewById(R.id.btn_audio_encode).setVisibility(View.GONE); + findViewById(R.id.btn_pcm_concat).setVisibility(View.GONE); } @Override @@ -115,6 +119,9 @@ public class AudioHandleActivity extends AppCompatActivity implements View.OnCli case R.id.btn_audio_encode: handleType = 6; break; + case R.id.btn_pcm_concat: + handleType = 7; + break; default: handleType = 0; break; @@ -137,7 +144,7 @@ public class AudioHandleActivity extends AppCompatActivity implements View.OnCli String cutFile = PATH + File.separator + "cut.mp3"; commandLine = FFmpegUtil.cutAudio(srcFile, 10, 15, cutFile); break; - case 2://合并 + case 2://合并，支持MP3、AAC、AMR等，不支持PCM裸流，不支持WAV（PCM裸流加音频头） String concatFile = PATH + File.separator + "concat.mp3"; commandLine = FFmpegUtil.concatAudio(srcFile, appendFile, concatFile); break; @@ -163,14 +170,22 @@ public class AudioHandleActivity extends AppCompatActivity implements View.OnCli return; case 6://音频编码 //可编码成WAV、AAC。如果需要编码成MP3、AMR，ffmpeg需要重新编译，把MP3、AMR库enable - String pcmFile = PATH + File.separator + "audio.pcm"; - String wavFile = PATH + File.separator + "output.wav"; + String pcmFile = PATH + File.separator + "concat.pcm"; + String wavFile = PATH + File.separator + "new.wav"; //pcm数据的采样率，一般采样率为8000、16000、44100 int sampleRate = 8000; //pcm数据的声道，单声道为1，立体声道为2 int channel = 1; commandLine = FFmpegUtil.encodeAudio(pcmFile, wavFile, sampleRate, channel); break; + case 7://PCM裸流音频文件合并 + String srcPCM = PATH + File.separator + "audio.pcm";//第一个pcm文件 + String appendPCM = PATH + File.separator + "audio.pcm";//第二个pcm文件 + String concatPCM = PATH + File.separator + "concat.pcm";//合并后的文件 + mHandler.obtainMessage(MSG_BEGIN).sendToTarget(); + FileUtil.concatFile(srcPCM, appendPCM, concatPCM); + mHandler.obtainMessage(MSG_FINISH).sendToTarget(); + return; default: break; } diff --git a/app/src/main/java/com/frank/ffmpeg/util/FileUtil.java b/app/src/main/java/com/frank/ffmpeg/util/FileUtil.java new file mode 100644 index 0000000..fc97a00 --- /dev/null +++ b/app/src/main/java/com/frank/ffmpeg/util/FileUtil.java @@ -0,0 +1,69 @@ +package com.frank.ffmpeg.util; + +import android.text.TextUtils; +import java.io.File; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.FileOutputStream; +import java.io.IOException; + +/** + * 文件工具类 + * Created by frank on 2018/5/9. + */ + +public class FileUtil { + + public static boolean concatFile(String srcFilePath, String appendFilePath, String concatFilePath){ + if(TextUtils.isEmpty(srcFilePath) + || TextUtils.isEmpty(appendFilePath) + || TextUtils.isEmpty(concatFilePath)){ + return false; + } + File srcFile = new File(srcFilePath); + if(!srcFile.exists()){ + return false; + } + File appendFile = new File(appendFilePath); + if(!appendFile.exists()){ + return false; + } + FileOutputStream outputStream = null; + FileInputStream inputStream1 = null, inputStream2 = null; + try { + inputStream1 = new FileInputStream(srcFile); + inputStream2 = new FileInputStream(appendFile); + outputStream = new FileOutputStream(new File(concatFilePath)); + byte[] data = new byte[1024]; + int len; + while ((len = inputStream1.read(data)) > 0){ + outputStream.write(data, 0, len); + } + outputStream.flush(); + while ((len = inputStream2.read(data)) > 0){ + outputStream.write(data, 0, len); + } + outputStream.flush(); + } catch (FileNotFoundException e) { + e.printStackTrace(); + }catch (IOException e){ + e.printStackTrace(); + }finally { + try { + if(inputStream1 != null){ + inputStream1.close(); + } + if(inputStream2 != null){ + inputStream2.close(); + } + if(outputStream != null){ + outputStream.close(); + } + } catch (IOException e) { + e.printStackTrace(); + } + } + return true; + } + +} diff --git a/app/src/main/res/layout/activity_audio_handle.xml b/app/src/main/res/layout/activity_audio_handle.xml index fb9b8ee..5209489 100644 --- a/app/src/main/res/layout/activity_audio_handle.xml +++ b/app/src/main/res/layout/activity_audio_handle.xml @@ -11,7 +11,7 @@ android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/audio_transform" - android:layout_marginTop="80dp" + android:layout_marginTop="40dp" android:layout_centerHorizontal="true"/>