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  • i wanna trim video in android java

    2 mars 2020, par israfilll

    I used this library implementation ’com.writingminds:FFmpegAndroid:0.3.2’.
    But i get an error.CANNOT LINK EXECUTABLE "/data/user/0/com.example.newapplication/files/ffmpeg" : "/data/data/com.example.newapplication/files/ffmpeg" has text relocations (https://android.googlesource.com/platform/bionic/+/master/androg-’changes-for-ndk-developers.md#Text-Relocations-Enforced-for-API-level-23)
    is there anyone who know reason ?

    this is code and i just want to trim(cut) video in time range i want. others is not necessary

    public class MainActivity extends AppCompatActivity {
    String outPutFile;
    Uri filePath, filePathSecond, photoUri, AudioUri;
    ProgressDialog progressDialog;
    private int REQUEST_TAKE_GALLERY_VIDEO = 110;
    private int REQUEST_TAKE_GALLERY_VIDEO_2 = 115;
    private int REQUEST_TAKE_GALLERY_PHOTO = 120;
    private int REQUEST_TAKE_GALLERY_AUDIO = 130;
    private FFmpeg ffmpeg;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       if(ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE)
               != PackageManager.PERMISSION_GRANTED){
           ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},1);


       }
       progressDialog = new ProgressDialog(this);
       findViewById(R.id.selectVideo).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               Intent intent = new Intent();
               intent.setType("video/*");
               intent.setAction(Intent.ACTION_GET_CONTENT);
               startActivityForResult(Intent.createChooser(intent, "Select Video"), REQUEST_TAKE_GALLERY_VIDEO);
           }
       });
       findViewById(R.id.start).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               if (filePath != null) {
                   executeCutVideoCommand(1000, 4 * 1000, filePath);
               }
           }
       });
       findViewById(R.id.background).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               if (filePath != null && photoUri != null) {
                   executeBackgroundCommand(filePath, photoUri);
               }
           }
       });
       findViewById(R.id.selectPhoto).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               Intent intent = new Intent();
               intent.setType("image/*");
               intent.setAction(Intent.ACTION_GET_CONTENT);
               startActivityForResult(Intent.createChooser(intent, "Select Video"), REQUEST_TAKE_GALLERY_PHOTO);
           }
       });
       findViewById(R.id.speed).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               if (filePath != null) {
                   executeSpeedCommand(.9f, filePath);
               }
           }
       });
       findViewById(R.id.rotate).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               if (filePath != null) {
                   executeRotateCommand(3, filePath);
               }
           }
       });
       findViewById(R.id.selectAudio).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               Intent intent = new Intent();
               intent.setType("audio/*");
               intent.setAction(Intent.ACTION_GET_CONTENT);
               startActivityForResult(Intent.createChooser(intent, "Select Video"), REQUEST_TAKE_GALLERY_AUDIO);
           }
       });
       findViewById(R.id.setAudio).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               if (filePath != null && AudioUri != null) {
                   executeChangeMusicCommand(filePath, AudioUri);
               }
           }
       });
       findViewById(R.id.mute).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               if (filePath != null) {
                   executeMuteCommand(filePath);
               }
           }
       });
       findViewById(R.id.volume).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               if (filePath != null) {
                   executeVolumeCommand(filePath, .5f);
               }
           }
       });
       findViewById(R.id.audio_trim).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               if (AudioUri != null) {
                   executeCutAudioCommand(1 * 1000, 10 * 1000, AudioUri);
               }
           }
       });
       findViewById(R.id.marge_video).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               if (filePath != null && filePathSecond != null)
                   executeMargeVideoCommand(filePath, filePathSecond);
           }
       });
       findViewById(R.id.selectVideo_2).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               Intent intent = new Intent();
               intent.setType("video/*");
               intent.setAction(Intent.ACTION_GET_CONTENT);
               startActivityForResult(Intent.createChooser(intent, "Select Video"), REQUEST_TAKE_GALLERY_VIDEO_2);
           }
       });
       findViewById(R.id.ratio_video).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               if (filePath != null)
                   executeRatioCommand(filePath, 2, 5);
           }
       });
       findViewById(R.id.filter_video).setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               if(filePath!=null){
                   executeFilterCommand(filePath);
               }
           }
       });
       loadFFMpegBinary();
    }


    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
       super.onActivityResult(requestCode, resultCode, data);
       if (requestCode == REQUEST_TAKE_GALLERY_VIDEO) {
           Uri uri = data.getData();
           if (uri != null) {
               filePath = uri;
           }
       }
       if (requestCode == REQUEST_TAKE_GALLERY_VIDEO_2) {
           Uri uri = data.getData();
           if (uri != null) {
               filePathSecond = uri;
           }
       }
       if (requestCode == REQUEST_TAKE_GALLERY_PHOTO) {
           Uri uri = data.getData();
           if (uri != null) {
               photoUri = uri;
           }
       }
       if (requestCode == REQUEST_TAKE_GALLERY_AUDIO) {
           Uri uri = data.getData();
           if (uri != null) {
               AudioUri = uri;
           }
       }
    }

    private void executeBackgroundCommand(Uri filePath, Uri photoUri) {
       File moviesDir = Environment.getExternalStoragePublicDirectory(
               Environment.DIRECTORY_MOVIES
       );
       String filePrefix = "set_background_video";
       String fileExtn = ".mp4";
       String yourRealPath = getPath(MainActivity.this, filePath);
       String yourRealPathImage = getPath(MainActivity.this, photoUri);
       File dest = new File(moviesDir, filePrefix + fileExtn);
       int fileNo = 0;
       while (dest.exists()) {
           fileNo++;
           dest = new File(moviesDir, filePrefix + fileNo + fileExtn);
       }
      /* Log.d(TAG, "startTrim: src: " + yourRealPath);
       Log.d(TAG, "startTrim: dest: " + dest.getAbsolutePath());
       Log.d(TAG, "startTrim: startMs: " + startMs);
       Log.d(TAG, "startTrim: endMs: " + endMs);*/
       outPutFile = dest.getAbsolutePath();
       //String[] complexCommand = {"-i", yourRealPath, "-ss", "" + startMs / 1000, "-t", "" + endMs / 1000, dest.getAbsolutePath()};
       String[] complexCommand = {"-i", yourRealPathImage, "-i", yourRealPath
               , "-filter_complex", "overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2", outPutFile};
       //   String[] complexCommand = {"-i", "" + yourRealPath, "-i", "" +yourRealPathImage, "-filter_complex", "overlay=10:main_h-overlay_h-10",outPutFile};
       execFFmpegBinary(complexCommand);
    }

    // video trim
    private void executeCutVideoCommand(int startMs, int endMs, Uri filePath) {
       File moviesDir = Environment.getExternalStoragePublicDirectory(
               Environment.DIRECTORY_MOVIES
       );
       String filePrefix = "cut_video";
       String fileExtn = ".mp4";
       String yourRealPath = getPath(MainActivity.this, filePath);
       File dest = new File(moviesDir, filePrefix + fileExtn);
       int fileNo = 0;
       while (dest.exists()) {
           fileNo++;
           dest = new File(moviesDir, filePrefix + fileNo + fileExtn);
       }
      /* Log.d(TAG, "startTrim: src: " + yourRealPath);
       Log.d(TAG, "startTrim: dest: " + dest.getAbsolutePath());
       Log.d(TAG, "startTrim: startMs: " + startMs);
       Log.d(TAG, "startTrim: endMs: " + endMs);*/
       outPutFile = dest.getAbsolutePath();
       //String[] complexCommand = {"-i", yourRealPath, "-ss", "" + startMs / 1000, "-t", "" + endMs / 1000, dest.getAbsolutePath()};
       String[] complexCommand = {"-ss",
               "" + (startMs / 1000),
               "-y",
               "-i",
               yourRealPath,
               "-t",
               "" + ((endMs - startMs) / 1000),
               "-vcodec",
               "mpeg4",
               "-b:v",
               "2097152",
               "-b:a",
               "48000",
               "-ac",
               "2",
               "-ar",
               "22050",
               outPutFile};
       execFFmpegBinary(complexCommand);
    }

    private String getPath(final Context context, final Uri uri) {
       final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
       // DocumentProvider
       if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
           if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
               // ExternalStorageProvider
               if (isExternalStorageDocument(uri)) {
                   final String docId = DocumentsContract.getDocumentId(uri);
                   final String[] split = docId.split(":");
                   final String type = split[0];
                   if ("primary".equalsIgnoreCase(type)) {
                       return Environment.getExternalStorageDirectory() + "/" + split[1];
                   }
                   // TODO handle non-primary volumes
               }
               // DownloadsProvider
               else if (isDownloadsDocument(uri)) {
                   final String id = DocumentsContract.getDocumentId(uri);
                   final Uri contentUri = ContentUris.withAppendedId(
                           Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
                   return getDataColumn(context, contentUri, null, null);
               }
               // MediaProvider
               else if (isMediaDocument(uri)) {
                   final String docId = DocumentsContract.getDocumentId(uri);
                   final String[] split = docId.split(":");
                   final String type = split[0];
                   Uri contentUri = null;
                   if ("image".equals(type)) {
                       contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                   } else if ("video".equals(type)) {
                       contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                   } else if ("audio".equals(type)) {
                       contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                   }
                   final String selection = "_id=?";
                   final String[] selectionArgs = new String[]{
                           split[1]
                   };
                   return getDataColumn(context, contentUri, selection, selectionArgs);
               }
           }
           // MediaStore (and general)
           else if ("content".equalsIgnoreCase(uri.getScheme())) {
               return getDataColumn(context, uri, null, null);
           }
           // File
           else if ("file".equalsIgnoreCase(uri.getScheme())) {
               return uri.getPath();
           }
       }
       return null;
    }

    private boolean isExternalStorageDocument(Uri uri) {
       return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
    * @param uri The Uri to check.
    * @return Whether the Uri authority is DownloadsProvider.
    */
    private boolean isDownloadsDocument(Uri uri) {
       return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
    * @param uri The Uri to check.
    * @return Whether the Uri authority is MediaProvider.
    */
    private boolean isMediaDocument(Uri uri) {
       return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

    private String getDataColumn(Context context, Uri uri, String selection,
                                String[] selectionArgs) {
       Cursor cursor = null;
       final String column = "_data";
       final String[] projection = {
               column
       };
       try {
           cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                   null);
           if (cursor != null && cursor.moveToFirst()) {
               final int column_index = cursor.getColumnIndexOrThrow(column);
               return cursor.getString(column_index);
           }
       } finally {
           if (cursor != null)
               cursor.close();
       }
       return null;
    }

    private void loadFFMpegBinary() {
       try {
           if (ffmpeg == null) {
               ffmpeg = FFmpeg.getInstance(this);
           }
           ffmpeg.loadBinary(new LoadBinaryResponseHandler() {
               @Override
               public void onFailure() {
               }

               @Override
               public void onSuccess() {
               }
           });
       } catch (FFmpegNotSupportedException e) {
       } catch (Exception e) {
       }
    }

    private void execFFmpegBinary(final String[] command) {
       progressDialog.show();
       try {
           ffmpeg.execute(command, new ExecuteBinaryResponseHandler() {
               @Override
               public void onFailure(String s) {


                   System.out.println("ssss"+s);
               }

               @Override
               public void onSuccess(String s) {
                   //    Log.d(TAG, "SUCCESS with output : " + s);
                   Toast.makeText(MainActivity.this, "SUCCESS" + outPutFile, Toast.LENGTH_LONG).show();
               }

               @Override
               public void onProgress(String s) {
               }

               @Override
               public void onStart() {
                   progressDialog.setMessage("Processing...");
                   progressDialog.show();
               }

               @Override
               public void onFinish() {
                   progressDialog.dismiss();
               }
           });
       } catch (Exception e ) {
           Toast.makeText(MainActivity.this, "EXCEPTION", Toast.LENGTH_LONG).show();

           // do nothing for now
       }
    }

    private void executeSpeedCommand(float speed, Uri filePath) {
       File moviesDir = Environment.getExternalStoragePublicDirectory(
               Environment.DIRECTORY_MOVIES
       );
       String filePrefix = "speed_change_video";
       String fileExtn = ".mp4";
       String yourRealPath = getPath(MainActivity.this, filePath);
       File dest = new File(moviesDir, filePrefix + fileExtn);
       int fileNo = 0;
       while (dest.exists()) {
           fileNo++;
           dest = new File(moviesDir, filePrefix + fileNo + fileExtn);
       }

       outPutFile = dest.getAbsolutePath();
       String[] complexCommand = {"-y", "-i", yourRealPath, "-filter_complex",
               "[0:v]setpts=" + (2.5 - speed) + "*PTS[v];[0:a]atempo=" + speed + "[a]", "-map", "[v]", "-map", "[a]", "-b:v", "2097k", "-r", "60", "-vcodec", "mpeg4", outPutFile};
       execFFmpegBinary(complexCommand);
    }


    private void executeRotateCommand(int rotate, Uri filePath) {

       File moviesDir = Environment.getExternalStoragePublicDirectory(
               Environment.DIRECTORY_MOVIES
       );
       String filePrefix = "speed_rotation_video";
       String fileExtn = ".mp4";
       String yourRealPath = getPath(MainActivity.this, filePath);
       File dest = new File(moviesDir, filePrefix + fileExtn);
       int fileNo = 0;
       while (dest.exists()) {
           fileNo++;
           dest = new File(moviesDir, filePrefix + fileNo + fileExtn);
       }

       outPutFile = dest.getAbsolutePath();
       String[] complexCommand = null;
       if (rotate == 3) {
           complexCommand = new String[]{"-i", yourRealPath, "-filter:v", "transpose=2,transpose=2", outPutFile};

       } else {
           complexCommand = new String[]{"-i", yourRealPath, "-filter:v", "transpose=" + rotate, outPutFile};
       }
       execFFmpegBinary(complexCommand);
    }

    private void executeChangeMusicCommand(Uri filePath, Uri audioUri) {
       File moviesDir = Environment.getExternalStoragePublicDirectory(
               Environment.DIRECTORY_MOVIES
       );
       String filePrefix = "audio_change_video";
       String fileExtn = ".mp4";
       String yourRealPath = getPath(MainActivity.this, filePath);
       String yourRealPathAudio = getPath(MainActivity.this, audioUri);
       File dest = new File(moviesDir, filePrefix + fileExtn);
       int fileNo = 0;
       while (dest.exists()) {
           fileNo++;
           dest = new File(moviesDir, filePrefix + fileNo + fileExtn);
       }

       outPutFile = dest.getAbsolutePath();
       String[] complexCommand = {"-i", yourRealPath, "-i", yourRealPathAudio, "-c:v", "copy", "-c:a", "aac", "-map", "0:v:0", "-map", "1:a:0", "-shortest", outPutFile};
       execFFmpegBinary(complexCommand);
    }

    private void executeMuteCommand(Uri filePath) {
       File moviesDir = Environment.getExternalStoragePublicDirectory(
               Environment.DIRECTORY_MOVIES
       );
       String filePrefix = "mute_change_video";
       String fileExtn = ".mp4";
       String yourRealPath = getPath(MainActivity.this, filePath);
       File dest = new File(moviesDir, filePrefix + fileExtn);
       int fileNo = 0;
       while (dest.exists()) {
           fileNo++;
           dest = new File(moviesDir, filePrefix + fileNo + fileExtn);
       }

       outPutFile = dest.getAbsolutePath();
       String[] complexCommand = {"-i", yourRealPath, "-vcodec", "copy", "-an", outPutFile};
       execFFmpegBinary(complexCommand);
    }

    private void executeVolumeCommand(Uri filePath, float volume) {
       File moviesDir = Environment.getExternalStoragePublicDirectory(
               Environment.DIRECTORY_MOVIES
       );
       String filePrefix = "volume_change_video";
       String fileExtn = ".mp4";
       String yourRealPath = getPath(MainActivity.this, filePath);
       File dest = new File(moviesDir, filePrefix + fileExtn);
       int fileNo = 0;
       while (dest.exists()) {
           fileNo++;
           dest = new File(moviesDir, filePrefix + fileNo + fileExtn);
       }

       outPutFile = dest.getAbsolutePath();
       String[] complexCommand = {"-i", yourRealPath, "-filter:a", "volume=" + volume, outPutFile};
       execFFmpegBinary(complexCommand);
    }

    private void executeCutAudioCommand(int startMs, int endMs, Uri filePath) {
       File moviesDir = Environment.getExternalStoragePublicDirectory(
               Environment.DIRECTORY_MOVIES
       );
       String filePrefix = "cut_video";
       String fileExtn = ".mp3";
       String yourRealPath = getPath(MainActivity.this, filePath);
       File dest = new File(moviesDir, filePrefix + fileExtn);
       int fileNo = 0;
       while (dest.exists()) {
           fileNo++;
           dest = new File(moviesDir, filePrefix + fileNo + fileExtn);
       }
      /* Log.d(TAG, "startTrim: src: " + yourRealPath);
       Log.d(TAG, "startTrim: dest: " + dest.getAbsolutePath());
       Log.d(TAG, "startTrim: startMs: " + startMs);
       Log.d(TAG, "startTrim: endMs: " + endMs);*/
       outPutFile = dest.getAbsolutePath();
       //String[] complexCommand = {"-i", yourRealPath, "-ss", "" + startMs / 1000, "-t", "" + endMs / 1000, dest.getAbsolutePath()};
       String[] complexCommand = {"-ss",
               "" + (startMs / 1000),
               "-y",
               "-i",
               yourRealPath,
               "-t",
               "" + ((endMs - startMs) / 1000),
               "-vcodec",
               "mpeg4",
               "-b:v",
               "2097152",
               "-b:a",
               "48000",
               "-ac",
               "2",
               "-ar",
               "22050",
               outPutFile};
       execFFmpegBinary(complexCommand);
    }

    private void executeMargeVideoCommand(Uri filePath, Uri filePathSecond) {
       File moviesDir = Environment.getExternalStoragePublicDirectory(
               Environment.DIRECTORY_MOVIES
       );
       String filePrefix = "marge_change_video";
       String fileExtn = ".mp4";
       String yourRealPath = getPath(MainActivity.this, filePath);
       String yourRealPath2 = getPath(MainActivity.this, filePathSecond);
       File dest = new File(moviesDir, filePrefix + fileExtn);
       int fileNo = 0;
       while (dest.exists()) {
           fileNo++;
           dest = new File(moviesDir, filePrefix + fileNo + fileExtn);
       }

       outPutFile = dest.getAbsolutePath();
       String complexCommand[] = {"-y", "-i", yourRealPath, "-i", yourRealPath2, "-strict", "experimental", "-filter_complex",
               "[0:v]scale=iw*min(1920/iw\\,1080/ih):ih*min(1920/iw\\,1080/ih), pad=1920:1080:(1920-iw*min(1920/iw\\,1080/ih))/2:(1080-ih*min(1920/iw\\,1080/ih))/2,setsar=1:1[v0];[1:v] scale=iw*min(1920/iw\\,1080/ih):ih*min(1920/iw\\,1080/ih), pad=1920:1080:(1920-iw*min(1920/iw\\,1080/ih))/2:(1080-ih*min(1920/iw\\,1080/ih))/2,setsar=1:1[v1];[v0][0:a][v1][1:a] concat=n=2:v=1:a=1",
               "-ab", "48000", "-ac", "2", "-ar", "22050", "-s", "1920x1080", "-vcodec", "libx264", "-crf", "27",
               "-q", "4", "-preset", "ultrafast", outPutFile};
       execFFmpegBinary(complexCommand);
    }

    private void executeRatioCommand(Uri filePath, int w, int h) {
       File moviesDir = Environment.getExternalStoragePublicDirectory(
               Environment.DIRECTORY_MOVIES
       );
       String filePrefix = "ratio_change_video";
       String fileExtn = ".mp4";
       String yourRealPath = getPath(MainActivity.this, filePath);
       File dest = new File(moviesDir, filePrefix + fileExtn);
       int fileNo = 0;
       while (dest.exists()) {
           fileNo++;
           dest = new File(moviesDir, filePrefix + fileNo + fileExtn);
       }

       outPutFile = dest.getAbsolutePath();
       //  String complexCommand[] = {"-i", yourRealPath,"-r", "15", "-aspect" ,""+w+":"+""+h ,"-strict" ,"-2",outPutFile};
       String complexCommand[] = new String[]{"-i", yourRealPath, "-lavf", "[0:v]scale=1920*2:1080*2,boxblur=luma_radius=min(h,w)/20:luma_power=1:chroma_radius=min(cw,ch)/20:chroma_power=1[bg];[0:v]scale=-1:1080[ov];[bg][ov]overlay=(W-w)/2:(H-h)/2,crop=w=1920:h=1080", outPutFile};
       execFFmpegBinary(complexCommand);
    }


    private void executeFilterCommand(Uri filePath) {
       File moviesDir = Environment.getExternalStoragePublicDirectory(
               Environment.DIRECTORY_MOVIES
       );
       String filePrefix = "filter_change_video";
       String fileExtn = ".mp4";
       String yourRealPath = getPath(MainActivity.this, filePath);
       File dest = new File(moviesDir, filePrefix + fileExtn);
       int fileNo = 0;
       while (dest.exists()) {
           fileNo++;
           dest = new File(moviesDir, filePrefix + fileNo + fileExtn);
       }

       outPutFile = dest.getAbsolutePath();
       //  String complexCommand[] = {"-i", yourRealPath,"-r", "15", "-aspect" ,""+w+":"+""+h ,"-strict" ,"-2",outPutFile};
       String complexCommand[] = { "-i",yourRealPath,"-vf", "split [main][tmp]; [tmp] lutyuv=","y=val*5"," [tmp2]; [main][tmp2] overlay", outPutFile};
       execFFmpegBinary(complexCommand);
    }

    }

  • swscale/aarch64/rgb2rgb : Implemented NEON shuf routines

    28 janvier, par Krzysztof Pyrkosz
    swscale/aarch64/rgb2rgb : Implemented NEON shuf routines
    

    The key idea is to pass the pre-generated tables to the TBL instruction
    and churn through the data 16 bytes at a time. The remaining 4 elements
    are handled with a specialized block located at the end of the routine.

    The 3210 variant can be implemented using rev32, but surprisingly it is
    slower than the generic TBL on A78, but much faster on A72.

    There may be some room for improvement. Possibly instead of handling
    last 8 and then 4 bytes separately, we can load these 4 into v0.s[2]
    and process along with the last 8 bytes.

    Speeds measured with checkasm —test=sw_rgb —bench —runs=10 | grep shuf

    - A78
    shuffle_bytes_0321_c : 75.5 ( 1.00x)
    shuffle_bytes_0321_neon : 26.5 ( 2.85x)
    shuffle_bytes_1203_c : 136.2 ( 1.00x)
    shuffle_bytes_1203_neon : 27.2 ( 5.00x)
    shuffle_bytes_1230_c : 135.5 ( 1.00x)
    shuffle_bytes_1230_neon : 28.0 ( 4.84x)
    shuffle_bytes_2013_c : 138.8 ( 1.00x)
    shuffle_bytes_2013_neon : 22.0 ( 6.31x)
    shuffle_bytes_2103_c : 76.5 ( 1.00x)
    shuffle_bytes_2103_neon : 20.5 ( 3.73x)
    shuffle_bytes_2130_c : 137.5 ( 1.00x)
    shuffle_bytes_2130_neon : 28.0 ( 4.91x)
    shuffle_bytes_3012_c : 138.2 ( 1.00x)
    shuffle_bytes_3012_neon : 21.5 ( 6.43x)
    shuffle_bytes_3102_c : 138.2 ( 1.00x)
    shuffle_bytes_3102_neon : 27.2 ( 5.07x)
    shuffle_bytes_3210_c : 138.0 ( 1.00x)
    shuffle_bytes_3210_neon : 22.0 ( 6.27x)

    shuf3210 using rev32
    shuffle_bytes_3210_c : 139.0 ( 1.00x)
    shuffle_bytes_3210_neon : 28.5 ( 4.88x)

    - A72
    shuffle_bytes_0321_c : 120.0 ( 1.00x)
    shuffle_bytes_0321_neon : 36.0 ( 3.33x)
    shuffle_bytes_1203_c : 188.2 ( 1.00x)
    shuffle_bytes_1203_neon : 37.8 ( 4.99x)
    shuffle_bytes_1230_c : 195.0 ( 1.00x)
    shuffle_bytes_1230_neon : 36.0 ( 5.42x)
    shuffle_bytes_2013_c : 195.8 ( 1.00x)
    shuffle_bytes_2013_neon : 43.5 ( 4.50x)
    shuffle_bytes_2103_c : 117.2 ( 1.00x)
    shuffle_bytes_2103_neon : 53.5 ( 2.19x)
    shuffle_bytes_2130_c : 203.2 ( 1.00x)
    shuffle_bytes_2130_neon : 37.8 ( 5.38x)
    shuffle_bytes_3012_c : 183.8 ( 1.00x)
    shuffle_bytes_3012_neon : 46.8 ( 3.93x)
    shuffle_bytes_3102_c : 180.8 ( 1.00x)
    shuffle_bytes_3102_neon : 37.8 ( 4.79x)
    shuffle_bytes_3210_c : 195.8 ( 1.00x)
    shuffle_bytes_3210_neon : 37.8 ( 5.19x)

    shuf3210 using rev32
    shuffle_bytes_3210_c : 194.8 ( 1.00x)
    shuffle_bytes_3210_neon : 30.8 ( 6.33x)

    - x13s :
    shuffle_bytes_0321_c : 49.4 ( 1.00x)
    shuffle_bytes_0321_neon : 18.1 ( 2.72x)
    shuffle_bytes_1203_c : 98.4 ( 1.00x)
    shuffle_bytes_1203_neon : 18.4 ( 5.35x)
    shuffle_bytes_1230_c : 97.4 ( 1.00x)
    shuffle_bytes_1230_neon : 19.1 ( 5.09x)
    shuffle_bytes_2013_c : 101.4 ( 1.00x)
    shuffle_bytes_2013_neon : 16.9 ( 6.01x)
    shuffle_bytes_2103_c : 53.9 ( 1.00x)
    shuffle_bytes_2103_neon : 13.9 ( 3.88x)
    shuffle_bytes_2130_c : 100.9 ( 1.00x)
    shuffle_bytes_2130_neon : 19.1 ( 5.27x)
    shuffle_bytes_3012_c : 97.4 ( 1.00x)
    shuffle_bytes_3012_neon : 17.1 ( 5.69x)
    shuffle_bytes_3102_c : 100.9 ( 1.00x)
    shuffle_bytes_3102_neon : 19.1 ( 5.27x)
    shuffle_bytes_3210_c : 100.6 ( 1.00x)
    shuffle_bytes_3210_neon : 16.9 ( 5.96x)

    shuf3210 using rev32
    shuffle_bytes_3210_c : 100.6 ( 1.00x)
    shuffle_bytes_3210_neon : 18.6 ( 5.40x)

    Signed-off-by : Martin Storsjö <martin@martin.st>

    • [DH] libswscale/aarch64/rgb2rgb.c
    • [DH] libswscale/aarch64/rgb2rgb_neon.S
    • [DH] tests/checkasm/sw_rgb.c
  • rtmp audio out of sync, http works fine

    21 janvier 2014, par marca

    We have encoded and distributed videos for some years now, using FFMPEG to produce h.264/mp4 files that have been working great for us. We have been using HTML mode and fall-backed to flash for browsers that does not support it natively using flowplayer.

    We use cloudfront to serve our files from a s3 bucket and have been using http progressive streaming.

    Recently we started distribute the files in flashmode over rtmp instead, using a cloudfront streaming distribution pointing to the same amazon s3 bucket.

    All good for some weeks, until yesterday when we notice a couple of files with audio sync issues in rtmp mode.
    The same file have no sync problems in flash with direct url to file.

    What can be the case ?

    Not working when streamed via RTMP, but file work with http streaming/progressive.
    You see the sync issue 15 sec's into the video.
    rtmp ://s2xe2avk54qztf.cloudfront.net:1935/cfx/st/mp4:95fvOY255bdPspO3z6tEvGi3Em7/default.mp4
    http://media.shootitlive.com/95fvOY255bdPspO3z6tEvGi3Em7/default.mp4

    Another file that have no sync issue at all.
    rtmp ://s2xe2avk54qztf.cloudfront.net:1935/cfx/st/mp4:P4EuH2TZxfV6BvpupP6dxrrs7gD/default.mp4
    http://media.shootitlive.com/P4EuH2TZxfV6BvpupP6dxrrs7gD/default.mp4

    Both files have the same format for video and audio and have been encoded the exact same way with ffmpeg. It's not player related as we see the audio sync issue on several players and when playing stream in VLC.