package cn.sinata.xldutils.utils
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import android.graphics.Bitmap
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import android.media.MediaMetadataRetriever
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import android.media.ThumbnailUtils
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import android.provider.MediaStore
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import java.io.*
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import java.util.*
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/**
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* Created on 2018/1/12.
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*/
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object FileUtils {
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fun writeToDisk(inputStream: InputStream?, path: String): Boolean {
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try {
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val futureStudioIconFile = File(path)
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var outputStream: OutputStream? = null
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try {
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val fileReader = ByteArray(4096)
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var fileSizeDownloaded: Long = 0
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outputStream = FileOutputStream(futureStudioIconFile)
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while (true) {
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val read = inputStream!!.read(fileReader)
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if (read == -1) {
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break
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}
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outputStream.write(fileReader, 0, read)
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fileSizeDownloaded += read.toLong()
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}
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outputStream.flush()
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return true
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} catch (e: IOException) {
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return false
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} finally {
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if (inputStream != null) {
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inputStream.close()
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}
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if (outputStream != null) {
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outputStream.close()
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}
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}
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} catch (e: IOException) {
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return false
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}
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}
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/**
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* 获取视频第一帧
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* @param videoPath
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* @return
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*/
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fun getFirstFrame(videoPath: String?): Bitmap? {
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val media = MediaMetadataRetriever()
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media.setDataSource(videoPath) // videoPath 本地视频的路径
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val bitmap = media.getFrameAtTime(1, MediaMetadataRetriever.OPTION_CLOSEST_SYNC)
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val baos = ByteArrayOutputStream()
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bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos)
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return bitmap
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}
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fun createVideoThumbnail(filePath: String, kind: Int = MediaStore.Images.Thumbnails.MINI_KIND): Bitmap? {
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var bitmap: Bitmap? = null
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val retriever = MediaMetadataRetriever()
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try {
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if (filePath.startsWith("http://")
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|| filePath.startsWith("https://")
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|| filePath.startsWith("widevine://")
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) {
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retriever.setDataSource(filePath, Hashtable<String, String>())
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} else {
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retriever.setDataSource(filePath)
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}
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bitmap = retriever.getFrameAtTime(
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0,
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MediaMetadataRetriever.OPTION_CLOSEST_SYNC
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) //retriever.getFrameAtTime(-1);
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} catch (ex: IllegalArgumentException) {
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// Assume this is a corrupt video file
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ex.printStackTrace()
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} catch (ex: RuntimeException) {
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// Assume this is a corrupt video file.
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ex.printStackTrace()
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} finally {
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try {
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retriever.release()
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} catch (ex: RuntimeException) {
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// Ignore failures while cleaning up.
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ex.printStackTrace()
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}
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}
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if (bitmap == null) {
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return null
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}
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if (kind == MediaStore.Images.Thumbnails.MINI_KIND) { //压缩图片 开始处
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// Scale down the bitmap if it's too large.
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val width = bitmap.width
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val height = bitmap.height
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val max = Math.max(width, height)
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if (max > 512) {
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val scale = 512f / max
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val w = Math.round(scale * width)
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val h = Math.round(scale * height)
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bitmap = Bitmap.createScaledBitmap(bitmap, w, h, true)
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} //压缩图片 结束处
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} else if (kind == MediaStore.Images.Thumbnails.MICRO_KIND) {
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bitmap = ThumbnailUtils.extractThumbnail(
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bitmap,
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96,
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96,
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ThumbnailUtils.OPTIONS_RECYCLE_INPUT
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)
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}
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return bitmap
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}
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}
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