Examples with MediaInfo com.lansosdk.videoeditor.MediaInfo used on opensource projects

Example 31 with MediaInfo

use of com.lansosdk.videoeditor.MediaInfo in project LanSoEditor_common by LanSoSdk.

the class DemoFunctions method demoVideoCropOverlay.

/**
 * 演示 先剪切, 再画面裁剪,再图片叠加.
 */
public static int demoVideoCropOverlay(Context ctx, VideoEditor editor, String srcVideo, String dstVideo) {
    MediaInfo info = new MediaInfo(srcVideo);
    if (info.prepare()) {
        String imagePath = CopyDefaultVideoAsyncTask.copyFile(ctx, "ic_launcher.png");
        int cropW = 240;
        int cropH = 240;
        int max = Math.max(info.vWidth, info.vHeight);
        int cropMax = Math.max(cropW, cropH);
        float dstBr = (float) info.vBitRate;
        float ratio = (float) cropMax / (float) max;
        // 得到恒定码率的等比例值.
        dstBr *= ratio;
        dstBr *= 1.5f;
        return editor.executeCropOverlay(srcVideo, info.vCodecName, imagePath, 20, 20, cropW, cropH, 0, 0, dstVideo, (int) dstBr);
    } else {
        return -1;
    }
}

Example 32 with MediaInfo

use of com.lansosdk.videoeditor.MediaInfo in project LanSoEditor_common by LanSoSdk.

the class ScaleExecuteDemoActivity method onCreate.

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.video_scale_layout);
    tvProgressHint = (TextView) findViewById(R.id.id_video_scale_progress_hint);
    tvSelectFile = (TextView) findViewById(R.id.id_video_scale_selectfilehint);
    videoPath = getIntent().getStringExtra("videopath");
    findViewById(R.id.id_video_scale_startbtn).setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            if (videoPath != null) {
                mInfo = new MediaInfo(videoPath, false);
                if (mInfo.prepare()) {
                    if (mInfo.vDuration >= 60 * 1000) {
                        // 大于60秒
                        showHintDialog();
                    } else {
                        testScaleEdit();
                    }
                }
            }
        }
    });
    findViewById(R.id.id_video_scale_play).setEnabled(false);
    findViewById(R.id.id_video_scale_play).setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            if (SDKFileUtils.fileExist(dstPath)) {
                Intent intent = new Intent(ScaleExecuteDemoActivity.this, VideoPlayerActivity.class);
                intent.putExtra("videopath", dstPath);
                startActivity(intent);
            } else {
                Toast.makeText(ScaleExecuteDemoActivity.this, "目标文件不存在", Toast.LENGTH_SHORT).show();
            }
        }
    });
    // 在手机的默认路径下创建一个文件名,用来保存生成的视频文件,(在onDestroy中删除)
    editTmpPath = SDKFileUtils.newMp4PathInBox();
    dstPath = SDKFileUtils.newMp4PathInBox();
}

Example 33 with MediaInfo

use of com.lansosdk.videoeditor.MediaInfo in project LanSoEditor_common by LanSoSdk.

the class VideoPlayerActivity method play.

private void play(Surface surface) {
    if (videoPath == null)
        return;
    MediaInfo info = new MediaInfo(videoPath);
    if (info.prepare() == false) {
        return;
    }
    Log.i(TAG, "info:" + info.toString());
    mediaPlayer = new MediaPlayer();
    mediaPlayer.reset();
    mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
    mediaPlayer.setOnCompletionListener(new OnCompletionListener() {

        @Override
        public void onCompletion(MediaPlayer mp) {
            // TODO Auto-generated method stub
            Toast.makeText(VideoPlayerActivity.this, "视频播放完毕!", Toast.LENGTH_SHORT).show();
        }
    });
    try {
        mediaPlayer.setDataSource(videoPath);
        mediaPlayer.setSurface(surface);
        mediaPlayer.prepare();
        // 因为是竖屏.宽度小于高度.
        if (screenWidth > mInfo.vWidth) {
            tvSizeHint.setText(R.string.origal_width);
            textureView.setDispalyRatio(TextureRenderView.AR_ASPECT_WRAP_CONTENT);
        } else {
            // 大于屏幕的宽度
            tvSizeHint.setText(R.string.fix_width);
            textureView.setDispalyRatio(TextureRenderView.AR_ASPECT_FIT_PARENT);
        }
        textureView.setVideoSize(mediaPlayer.getVideoWidth(), mediaPlayer.getVideoHeight());
        textureView.requestLayout();
        mediaPlayer.start();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

Example 34 with MediaInfo

use of com.lansosdk.videoeditor.MediaInfo in project LanSoEditor_advance by LanSoSdk.

the class DemoFunctions method demoAVMerge.

/**
 * 演示音频和视频合成, 也可以认为是音频替换.
 * <p>
 * 音视频合成:\n把一个纯音频文件和纯视频文件合并成一个mp4格式的多媒体文件, 如果源视频之前有音频,会首先删除音频部分. \n\n
 */
public static int demoAVMerge(Context ctx, VideoEditor editor, String srcVideo, String dstPath) {
    int ret = -1;
    MediaInfo info = new MediaInfo(srcVideo, false);
    if (info.prepare()) {
        String video2 = srcVideo;
        String video3 = null;
        // 如果源视频中有音频,则先删除音频
        if (info.isHaveAudio()) {
            video3 = SDKFileUtils.createFileInBox(info.fileSuffix);
            editor.executeDeleteAudio(video2, video3);
            video2 = video3;
        }
        String audio = CopyDefaultVideoAsyncTask.copyFile(ctx, "aac20s.aac");
        ret = editor.executeVideoMergeAudio(video2, audio, dstPath);
        SDKFileUtils.deleteFile(video3);
    }
    return ret;
}

Example 35 with MediaInfo

use of com.lansosdk.videoeditor.MediaInfo in project LanSoEditor_advance by LanSoSdk.

the class DemoFunctions method demoAudioCut.

/**
 * 演示音频截取
 * <p>
 * 音频剪切:\n剪切音频的长度,可以指定开始位置,指定结束位置.\n这里演示截取音频的前20秒或时长的一半,形成新的音频文件.
 */
public static int demoAudioCut(Context ctx, VideoEditor editor, String dstAudio) {
    String srcAudio = CopyDefaultVideoAsyncTask.copyFile(ctx, "honor30s2.m4a");
    MediaInfo info = new MediaInfo(srcAudio);
    if (info.prepare() && info.aCodecName != null) {
        if (info.aDuration > 15)
            return editor.executeAudioCutOut(srcAudio, dstAudio, 0, 15);
        else
            return editor.executeAudioCutOut(srcAudio, dstAudio, 0, info.aDuration / 2);
    } else {
        return -1;
    }
}