1 /* 2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.photopicker.features.preparemedia 18 19 import android.content.Context 20 import android.media.ApplicationMediaCapabilities 21 import android.net.Uri 22 import com.android.photopicker.data.PICKER_SEGMENT 23 import com.android.photopicker.data.PICKER_TRANSCODED_SEGMENT 24 import com.android.photopicker.data.model.Media 25 26 /** Provides methods to help video transcode. */ 27 interface Transcoder { 28 29 /** Data class to hold details of the transcoding video. */ 30 data class VideoInfo( 31 val duration: Int, 32 val colorStandard: Int, 33 val colorTransfer: Int, 34 val mimeType: Int, 35 ) 36 37 /** 38 * Checks if a transcode is required for the given video. 39 * 40 * @param context The context. 41 * @param mediaCapabilities The application media capabilities. 42 * @param video The video to check. 43 */ isTranscodeRequirednull44 fun isTranscodeRequired( 45 context: Context, 46 mediaCapabilities: ApplicationMediaCapabilities?, 47 video: Media.Video, 48 ): Boolean 49 50 /** Returns details of the video that needs transcoding */ 51 fun getTranscodingVideoInfo(): VideoInfo? 52 53 companion object { 54 55 /** 56 * Converts a picker provider URI to a transcoded URI. 57 * 58 * @param pickerUri The picker provider URI. 59 * @return The transcoded URI. 60 * @throws IllegalArgumentException If the picker provider URI is not valid. 61 */ 62 fun toTranscodedUri(pickerUri: Uri): Uri { 63 val segments = pickerUri.pathSegments 64 65 require(segments.size == 5) { "Unexpected picker provider URI: $pickerUri" } 66 67 val builder = Uri.Builder().scheme(pickerUri.scheme).authority(pickerUri.authority) 68 69 for (i in segments.indices) { 70 if (PICKER_SEGMENT == segments[i]) { 71 // Replace picker segment with picker transcoded segment. 72 builder.appendPath(PICKER_TRANSCODED_SEGMENT) 73 } else { 74 builder.appendPath(segments[i]) 75 } 76 } 77 78 return builder.build() 79 } 80 } 81 } 82