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2014/10/16 ¤W¤È 08:23:27

android Programming Glossary: samplesize

Create video from screen grabs in android

http://stackoverflow.com/questions/14067339/create-video-from-screen-grabs-in-android

encoder.queueInputBuffer inputBufIndex 0 offset sampleSize presentationTimeUs 0 int outputBufIndex encoder.dequeueOutputBuffer..

How to downscale images correctly?

http://stackoverflow.com/questions/16408505/how-to-downscale-images-correctly

int originalWidth options.outWidth Calculate your sampleSize based on the requiredWidth and originalWidth For e.g you want.. 500 getResources .getDisplayMetrics .density int sampleSize originalWidth requiredWidth If the original image is smaller.. original image is smaller than required don't sample if sampleSize 1 sampleSize 1 options.inSampleSize sampleSize options.inPurgeable..

BitmapFactory.decodeStream returning null when options are set

http://stackoverflow.com/questions/2503628/bitmapfactory-decodestream-returning-null-when-options-are-set

power of 2 that'll get it desired dimensions double sampleSize scaleByHeight options.outHeight TARGET_HEIGHT options.outWidth.. options.inSampleSize int Math.pow 2d Math.floor Math.log sampleSize Math.log 2d Do the actual decoding options.inJustDecodeBounds.. power of 2 that'll get it desired dimensions double sampleSize scaleByHeight options.outHeight TARGET_HEIGHT options.outWidth..

Decoding bitmaps in Android with the right size

http://stackoverflow.com/questions/2641726/decoding-bitmaps-in-android-with-the-right-size

int newWidth calculateNewWidth int width int height float sampleSizeF float width float newWidth int sampleSize Math.round sampleSizeF.. height float sampleSizeF float width float newWidth int sampleSize Math.round sampleSizeF BitmapFactory.Options resample new BitmapFactory.Options.. float width float newWidth int sampleSize Math.round sampleSizeF BitmapFactory.Options resample new BitmapFactory.Options resample.inSampleSize..

Android audio FFT to retrieve specific frequency magnitude using audiorecord

http://stackoverflow.com/questions/5774104/android-audio-fft-to-retrieve-specific-frequency-magnitude-using-audiorecord

int format AudioFormat.ENCODING_PCM_16BIT int sampleSize 8000 int bufferSize AudioRecord.getMinBufferSize sampleSize.. 8000 int bufferSize AudioRecord.getMinBufferSize sampleSize channel_config format AudioRecord audioInput new AudioRecord.. AudioRecord audioInput new AudioRecord AudioSource.MIC sampleSize channel_config format bufferSize The audio is then read in short..

How to implement Image Gallery in Gridview in android?

http://stackoverflow.com/questions/6855399/how-to-implement-image-gallery-in-gridview-in-android

power of 2 that'll get it desired dimensions double sampleSize scaleByHeight options.outHeight 100 options.outWidth 100 options.inSampleSize.. options.inSampleSize int Math.pow 2d Math.floor Math.log sampleSize Math.log 2d Do the actual decoding options.inJustDecodeBounds..

How to convert the WAV/OGG file to FLAC file in Android?

http://stackoverflow.com/questions/9733064/how-to-convert-the-wav-ogg-file-to-flac-file-in-android

int sampleRate 16000 int format.getSampleRate int sampleSize 16 int format.getSampleSizeInBits int channels 1 int format.getChannels.. channels blockSize blockSize sampleRate sampleSize sc.setSampleRate sampleRate sc.setBitsPerSample sampleSize.. sc.setSampleRate sampleRate sc.setBitsPerSample sampleSize sc.setChannelCount channels Set the stream configuration..

Create video from screen grabs in android

http://stackoverflow.com/questions/14067339/create-video-from-screen-grabs-in-android

2 j 2 stride sliceHeight 5 4 ... V i j inputBuf.put inputFrame encoder.queueInputBuffer inputBufIndex 0 offset sampleSize presentationTimeUs 0 int outputBufIndex encoder.dequeueOutputBuffer info timeout if outputBufIndex 0 ByteBuffer outputBuf..

How to downscale images correctly?

http://stackoverflow.com/questions/16408505/how-to-downscale-images-correctly

file.getAbsolutePath options int originalHeight options.outHeight int originalWidth options.outWidth Calculate your sampleSize based on the requiredWidth and originalWidth For e.g you want the width to stay consistent at 500dp int requiredWidth 500.. e.g you want the width to stay consistent at 500dp int requiredWidth 500 getResources .getDisplayMetrics .density int sampleSize originalWidth requiredWidth If the original image is smaller than required don't sample if sampleSize 1 sampleSize 1 options.inSampleSize.. .density int sampleSize originalWidth requiredWidth If the original image is smaller than required don't sample if sampleSize 1 sampleSize 1 options.inSampleSize sampleSize options.inPurgeable true options.inPreferredConfig Bitmap.Config.RGB_565..

BitmapFactory.decodeStream returning null when options are set

http://stackoverflow.com/questions/2503628/bitmapfactory-decodestream-returning-null-when-options-are-set

options.outWidth 2 200 100 2 Load scaling to smallest power of 2 that'll get it desired dimensions double sampleSize scaleByHeight options.outHeight TARGET_HEIGHT options.outWidth TARGET_WIDTH options.inSampleSize int Math.pow 2d Math.floor.. options.outHeight TARGET_HEIGHT options.outWidth TARGET_WIDTH options.inSampleSize int Math.pow 2d Math.floor Math.log sampleSize Math.log 2d Do the actual decoding options.inJustDecodeBounds false Bitmap img BitmapFactory.decodeStream is null options.. options.outWidth 2 200 200 2 Load scaling to smallest power of 2 that'll get it desired dimensions double sampleSize scaleByHeight options.outHeight TARGET_HEIGHT options.outWidth TARGET_WIDTH options.inSampleSize int Math.pow 2d Math.floor..

Decoding bitmaps in Android with the right size

http://stackoverflow.com/questions/2641726/decoding-bitmaps-in-android-with-the-right-size

withinBounds width maxWidth height maxHeight if withinBounds int newWidth calculateNewWidth int width int height float sampleSizeF float width float newWidth int sampleSize Math.round sampleSizeF BitmapFactory.Options resample new BitmapFactory.Options.. if withinBounds int newWidth calculateNewWidth int width int height float sampleSizeF float width float newWidth int sampleSize Math.round sampleSizeF BitmapFactory.Options resample new BitmapFactory.Options resample.inSampleSize sampleSize bitmap.. newWidth calculateNewWidth int width int height float sampleSizeF float width float newWidth int sampleSize Math.round sampleSizeF BitmapFactory.Options resample new BitmapFactory.Options resample.inSampleSize sampleSize bitmap BitmapFactory.decodeFile..

Android audio FFT to retrieve specific frequency magnitude using audiorecord

http://stackoverflow.com/questions/5774104/android-audio-fft-to-retrieve-specific-frequency-magnitude-using-audiorecord

class int channel_config AudioFormat.CHANNEL_CONFIGURATION_MONO int format AudioFormat.ENCODING_PCM_16BIT int sampleSize 8000 int bufferSize AudioRecord.getMinBufferSize sampleSize channel_config format AudioRecord audioInput new AudioRecord.. int format AudioFormat.ENCODING_PCM_16BIT int sampleSize 8000 int bufferSize AudioRecord.getMinBufferSize sampleSize channel_config format AudioRecord audioInput new AudioRecord AudioSource.MIC sampleSize channel_config format bufferSize.. AudioRecord.getMinBufferSize sampleSize channel_config format AudioRecord audioInput new AudioRecord AudioSource.MIC sampleSize channel_config format bufferSize The audio is then read in short audioBuffer new short bufferSize audioInput.startRecording..

How to implement Image Gallery in Gridview in android?

http://stackoverflow.com/questions/6855399/how-to-implement-image-gallery-in-gridview-in-android

options.outWidth 2 16384 Load scaling to smallest power of 2 that'll get it desired dimensions double sampleSize scaleByHeight options.outHeight 100 options.outWidth 100 options.inSampleSize int Math.pow 2d Math.floor Math.log sampleSize.. scaleByHeight options.outHeight 100 options.outWidth 100 options.inSampleSize int Math.pow 2d Math.floor Math.log sampleSize Math.log 2d Do the actual decoding options.inJustDecodeBounds false options.inTempStorage new byte 512 Bitmap output BitmapFactory.decodeFile..

How to convert the WAV/OGG file to FLAC file in Android?

http://stackoverflow.com/questions/9733064/how-to-convert-the-wav-ogg-file-to-flac-file-in-android

val private void adjustConfigurations AudioFormat format int sampleRate 16000 int format.getSampleRate int sampleSize 16 int format.getSampleSizeInBits int channels 1 int format.getChannels int blockSize sc.getMaxBlockSize sc new StreamConfiguration.. int blockSize sc.getMaxBlockSize sc new StreamConfiguration channels blockSize blockSize sampleRate sampleSize sc.setSampleRate sampleRate sc.setBitsPerSample sampleSize sc.setChannelCount channels Set the stream configuration.. channels blockSize blockSize sampleRate sampleSize sc.setSampleRate sampleRate sc.setBitsPerSample sampleSize sc.setChannelCount channels Set the stream configuration for this encoder to use. Note that the audio characteristics..

Choosing background for Live Wallpaper

http://stackoverflow.com/questions/3679330/choosing-background-for-live-wallpaper

0 this.visibleWidth 0 this.cvwidth 480 this.cvheight 854 this.visibleWidth 480 if new File imageBg .exists int SampleSize 1 do BitmapFactory.Options options new BitmapFactory.Options options.inJustDecodeBounds true bg BitmapFactory.decodeFile.. options new BitmapFactory.Options options.inJustDecodeBounds true bg BitmapFactory.decodeFile imageBg options SampleSize int Math.ceil options.outWidth this.visibleWidth 2 2 options.inJustDecodeBounds false try options.inSampleSize SampleSize.. SampleSize int Math.ceil options.outWidth this.visibleWidth 2 2 options.inJustDecodeBounds false try options.inSampleSize SampleSize bg BitmapFactory.decodeFile imageBg options catch OutOfMemoryError e SampleSize SampleSize 2 while bg null..

Android: high quality image resizing / scaling

http://stackoverflow.com/questions/4207562/android-high-quality-image-resizing-scaling

stream without losing quality. I am aware of this solution Android Strange out of memory issue but it is too coarse inSampleSize is an integer and does not allow finer control over the resulting dimensions. That is I need to scale images to specific.. int scaleWidth int bm.getWidth scale int scaleHeight int bm.getHeight scale original image is 720x402 and SampleSize 4 produces 180x102 which is still too large BitmapFactory.Options bfo new BitmapFactory.Options bfo.inSampleSize 4 return.. and SampleSize 4 produces 180x102 which is still too large BitmapFactory.Options bfo new BitmapFactory.Options bfo.inSampleSize 4 return BitmapFactory.decodeResource getResources R.drawable.a000001570402 bfo And the layout xml version 1.0 encoding..