新增变速功能

Author: Administrator

joevideolib/src/main/java/Jni/VideoUitls.java

@@ -24,6 +24,12 @@ public static long getDuration(String url) {
 MediaExtractor mediaExtractor = new MediaExtractor();
 mediaExtractor.setDataSource(url);
 int videoExt = TrackUtils.selectVideoTrack(mediaExtractor);
+if(videoExt == -1){
+videoExt = TrackUtils.selectAudioTrack(mediaExtractor);
+if(videoExt == -1){
+return 0;
+}
+}
 MediaFormat mediaFormat = mediaExtractor.getTrackFormat(videoExt);
 long res = mediaFormat.containsKey(MediaFormat.KEY_DURATION) ? mediaFormat.getLong(MediaFormat.KEY_DURATION) : 0;//时长
 mediaExtractor.release();

joevideolib/src/main/java/VideoHandle/EpEditor.java

@@ -1,6 +1,7 @@
 package VideoHandle;
 
 import android.app.Activity;
+import android.app.Application;
 import android.content.Context;
 import android.media.MediaExtractor;
 import android.media.MediaFormat;
@@ -25,14 +26,15 @@ public class EpEditor {
 private static final int DEFAULT_WIDTH = 480;//默认输出宽度
 private static final int DEFAULT_HEIGHT = 360;//默认输出高度
 
-private Context context;
-
 public enum Format {
 MP3, MP4
 }
 
-public EpEditor(Context context) {
-this.context = context;
+public enum PTS {
+VIDEO, AUDIO, ALL
+}
+
+private EpEditor() {
 }
 
 /**
@@ -41,7 +43,7 @@ public EpEditor(Context context) {
  * @param epVideo 需要处理的视频
  * @param outputOption 输出选项配置
  */
-public void exec(EpVideo epVideo, OutputOption outputOption, OnEditorListener onEditorListener) {
+public static void exec(EpVideo epVideo, OutputOption outputOption, OnEditorListener onEditorListener) {
 boolean isFilter = false;
 ArrayList<EpDraw> epDraws = epVideo.getEpDraws();
 //开始处理
@@ -107,7 +109,7 @@ public void exec(EpVideo epVideo, OutputOption outputOption, OnEditorListener on
 isFilter = true;
 }
 }
-if(!filter_complex.toString().equals("")) {
+if (!filter_complex.toString().equals("")) {
 cmd.append(filter_complex.toString());
 }
 }
@@ -139,7 +141,7 @@ public void exec(EpVideo epVideo, OutputOption outputOption, OnEditorListener on
  * @param epVideos 需要合并的视频集合
  * @param outputOption 输出选项配置
  */
-public void merge(List<EpVideo> epVideos, OutputOption outputOption, OnEditorListener onEditorListener) {
+public static void merge(List<EpVideo> epVideos, OutputOption outputOption, OnEditorListener onEditorListener) {
 //检测是否有无音轨视频
 boolean isNoAudioTrack = false;
 for (EpVideo epVideo : epVideos) {
@@ -225,7 +227,7 @@ public void merge(List<EpVideo> epVideos, OutputOption outputOption, OnEditorLis
 }
 filter_complex.append("concat=n=").append(epVideos.size()).append(":v=0:a=1[outa]");
 }
-if(!filter_complex.toString().equals("")) {
+if (!filter_complex.toString().equals("")) {
 cmd.append(filter_complex.toString());
 }
 cmd.append("-map").append("[outv]");
@@ -259,11 +261,12 @@ public void merge(List<EpVideo> epVideos, OutputOption outputOption, OnEditorLis
  * <p>
  * 注意：此方法要求视频格式非常严格，需要合并的视频必须分辨率相同，帧率和码率也得相同
  *
+ * @param context Context
  * @param epVideos 需要合并的视频的集合
  * @param outputOption 输出选项
  * @param onEditorListener 回调监听
  */
-public void mergeByLc(List<EpVideo> epVideos, OutputOption outputOption, final OnEditorListener onEditorListener) {
+public static void mergeByLc(Context context, List<EpVideo> epVideos, OutputOption outputOption, final OnEditorListener onEditorListener) {
 String appDir = context.getFilesDir().getAbsolutePath() + "/EpVideos/";
 String fileName = "ffmpeg_concat.txt";
 List<String> videos = new ArrayList<>();
@@ -297,7 +300,7 @@ public void mergeByLc(List<EpVideo> epVideos, OutputOption outputOption, final O
  * @param audioVolume 背景音乐音量(例:1.5为150%)
  * @param onEditorListener 回调监听
  */
-public void music(String videoin, String audioin, String output, float videoVolume, float audioVolume, OnEditorListener onEditorListener) {
+public static void music(String videoin, String audioin, String output, float videoVolume, float audioVolume, OnEditorListener onEditorListener) {
 MediaExtractor mediaExtractor = new MediaExtractor();
 try {
 mediaExtractor.setDataSource(videoin);
@@ -331,7 +334,7 @@ public void music(String videoin, String audioin, String output, float videoVolu
  * @param format 输出类型
  * @param onEditorListener 回调监听
  */
-public void demuxer(String videoin, String out, Format format, OnEditorListener onEditorListener) {
+public static void demuxer(String videoin, String out, Format format, OnEditorListener onEditorListener) {
 CmdList cmd = new CmdList();
 cmd.append("ffmpeg").append("-y").append("-i").append(videoin);
 switch (format) {
@@ -346,6 +349,50 @@ public void demuxer(String videoin, String out, Format format, OnEditorListener
 execCmd(cmd, 0, onEditorListener);
 }
 
+/**
+ * 音视频变速
+ *
+ * @param videoin 音视频文件
+ * @param out 输出路径
+ * @param times 倍率（调整范围0.25-4）
+ * @param pts 加速类型
+ * @param onEditorListener 回调接口
+ */
+public static void changePTS(String videoin, String out, float times, PTS pts, OnEditorListener onEditorListener) {
+if (times < 0.25f || times > 4.0f) {
+Log.e("ffmpeg", "times参数错误，播放速率调整范围0.25-4倍");
+onEditorListener.onFailure();
+return;
+}
+CmdList cmd = new CmdList();
+cmd.append("ffmpeg").append("-y").append("-i").append(videoin);
+String t = "atempo=" + times;
+if (times < 0.5f) {
+t = "atempo=0.5,atempo=" + (times / 0.5f);
+} else if (times > 2.0f) {
+t = "atempo=2.0,atempo=" + (times / 2.0f);
+}
+Log.v("ffmpeg", "atempo:" + t);
+switch (pts) {
+case VIDEO:
+cmd.append("-filter_complex").append("[0:v]setpts=" + (1 / times) + "*PTS").append("-an");
+break;
+case AUDIO:
+cmd.append("-filter:a").append(t);
+break;
+case ALL:
+cmd.append("-filter_complex").append("[0:v]setpts=" + (1 / times) + "*PTS[v];[0:a]" + t + "[a]")
+.append("-map").append("[v]").append("-map").append("[a]");
+break;
+}
+cmd.append("-preset").append("superfast").append(out);
+long d = VideoUitls.getDuration(videoin);
+double dd = d / times;
+long ddd = (long) dd;
+Log.v("ffmpeg", "JD:" + d + "," + dd + "," + ddd);
+execCmd(cmd, ddd, onEditorListener);
+}
+
 
 /**
  * 输出选项设置
@@ -448,38 +495,23 @@ public void setHeight(int height) {
  *
  * @param cmd 命令
  */
-public void execCmd(String cmd, long duration, final OnEditorListener onEditorListener) {
+public static void execCmd(String cmd, long duration, final OnEditorListener onEditorListener) {
 cmd = "ffmpeg " + cmd;
 String[] cmds = cmd.split(" ");
 FFmpegCmd.exec(cmds, duration, new OnEditorListener() {
 @Override
 public void onSuccess() {
-((Activity) context).runOnUiThread(new Runnable() {
-@Override
-public void run() {
-onEditorListener.onSuccess();
-}
-});
+onEditorListener.onSuccess();
 }
 
 @Override
 public void onFailure() {
-((Activity) context).runOnUiThread(new Runnable() {
-@Override
-public void run() {
-onEditorListener.onFailure();
-}
-});
+onEditorListener.onFailure();
 }
 
 @Override
 public void onProgress(final float progress) {
-((Activity) context).runOnUiThread(new Runnable() {
-@Override
-public void run() {
-onEditorListener.onProgress(progress);
-}
-});
+onEditorListener.onProgress(progress);
 }
 });
 }
@@ -489,40 +521,25 @@ public void run() {
  *
  * @param cmd 命令
  */
-public void execCmd(CmdList cmd, long duration, final OnEditorListener onEditorListener) {
+private static void execCmd(CmdList cmd, long duration, final OnEditorListener onEditorListener) {
 String[] cmds = cmd.toArray(new String[cmd.size()]);
-for (String ss:cmds) {
-Log.v("EpMediaF","cmd:"+ss);
+for (String ss : cmds) {
+Log.v("EpMediaF", "cmd:" + ss);
 }
 FFmpegCmd.exec(cmds, duration, new OnEditorListener() {
 @Override
 public void onSuccess() {
-((Activity) context).runOnUiThread(new Runnable() {
-@Override
-public void run() {
-onEditorListener.onSuccess();
-}
-});
+onEditorListener.onSuccess();
 }
 
 @Override
 public void onFailure() {
-((Activity) context).runOnUiThread(new Runnable() {
-@Override
-public void run() {
-onEditorListener.onFailure();
-}
-});
+onEditorListener.onFailure();
 }
 
 @Override
 public void onProgress(final float progress) {
-((Activity) context).runOnUiThread(new Runnable() {
-@Override
-public void run() {
-onEditorListener.onProgress(progress);
-}
-});
+onEditorListener.onProgress(progress);
 }
 });
 }