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MasayukiSuda / CameraRecorder-android

Video Recording with Camera2 and apply video filter.
MIT License
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Video rotation help #26

Open WangYP90 opened 4 years ago

WangYP90 commented 4 years ago

Hello, if I need to rotate the video with an angle to save it as a file when recording on a horizontal screen, what should I do? I look forward to your help.

hellojiawa commented 3 years ago

下面步骤可以在横屏模式下录制竖屏视频：

  1. GlPreviewRenderer类创建一个新的MMatrix2

    private float[] MMatrix2 = new float[16];
Matrix.setIdentityM(MMatrix2, 0);

  2. 修改编码部分代码

        synchronized (this) {
        if (videoEncoder != null) {
            Matrix.multiplyMM(MVPMatrix, 0, VMatrix, 0, MMatrix2, 0);
            Matrix.multiplyMM(MVPMatrix, 0, ProjMatrix, 0, MVPMatrix, 0);

            // notify to capturing thread that the camera frame is available.
            videoEncoder.frameAvailableSoon(texName, STMatrix, MVPMatrix, aspectRatio);
        }
    }

  3. MediaVideoEncoder类的fileWidth和fileHeight互相调换

ToysoftInc commented 3 years ago

Do you have a working example that you can post or share? I'm trying to do the same thing. Rotate video 90 degrees.