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Videos on Android - Stuff What I Learned
- 1. Videos on Android StuffWhat I Learned
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- 15. 1GB/month → <10MBtotal
- 16. { "id": 117, "name": "HamstringHanging Stretch", "description": "Position yourself lying on your front on a flat, raised surface. Allow the lower part of your leg to hang off the edge. Let the weight of your foot straighten your knee.", "sets": 3, "reps": 8, "hold_duration": 10, "rest": 30, "created": "2013-12-02 22:03:21", "modified": "2013-12-23 16:59:02", "video": { "id": 132, "url": "/ddaf3d7d59b4dd09fae6d34e760236d9/320p-16to9.mp4", "hold_time_seconds": 4.3, "loop_time_start_seconds": 0, "loop_time_end_seconds": 0, "etag": "b38f39cebe21487dd2ed123d16065d7b" } }
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- 19. I hate thisdevice. It’s great!
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- 23. VideoView vv =(VideoView) findViewById(R.id.videoView); vv.setVideoPath(path); ! vv.setOnPreparedListener (new OnPreparedListener() { @Override public void onPrepared(MediaPlayer mp) { mp.setLooping(true); } }); ! vv.start();
- 26. Disclaimer:This isn’t meantto happen.
- 27. –Android API Docs “SurfaceViewpunches a hole in its window to allow its surface to be displayed.”
- 28. TextureView • Android 4.0 •Behaves as a regular view • OpenGL,Video etc
- 29. implement TextureView.SurfaceTextureListener public voidonSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) ! ! public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) ! ! public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) ! ! public void onSurfaceTextureUpdated(SurfaceTexture surface)
- 30. public void onSurfaceTextureAvailable(SurfaceTexturesurfaceT, int width, int height) { Surface surface = new Surface(surfaceT); try { mediaPlayer.setDataSource(path); } catch (Exception e) { } ! mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() { @Override public void onPrepared(MediaPlayer mp) { mp.setLooping(true); mp.start(); } }); ! mediaPlayer.setSurface(surface); ! mediaPlayer.prepareAsync(); }
- 31. public boolean onSurfaceTextureDestroyed(SurfaceTexturesurfaceT) { mediaPlayer.release(); return true; }
- 33. Hey Mark, whataboutYouTube?
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- 35. MediaController • Just aview containing media controls • Implement all callbacks with setMediaPlayer(); • start(), pause(), seekTo() etc callbacks • Hook these up to your MediaPlayer: public void start() { mediaPlayer.start(); } ! public void pause() { mediaPlayer.pause(); } ! public void seekTo(int i) { mediaPlayer.seekTo(i); }
- 36. MediaMetadataRetriever • Get aframe as a Bitmap • Useful when waiting for video to load or when usingVideoView metadataRetriever.setDataSource(ctx, path); ! Bitmap bitmap = metadataRetriever.getFrameAtTime(0L, MediaMetadataRetriever.OPTION_CLOSEST); ! if (bitmap != null) { BitmapDrawable previewBitmap = new BitmapDrawable(this.getResources(), bitmap); imageView.setImageDrawable(previewBitmap); }
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- 38. Y U NOUSE INTENT?!
- 39. In Summary • Thinkabout your content • “I need shiny 1080p” • Resolution/user dependent content? • Be nice, cache (and cache hard) if possible • Assume nothing and be prepared • TextureView when 4.0 • VideoView when <4.0 • Test • Test • Test • Test • Test • Test
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