527 lines
18 KiB
C#
527 lines
18 KiB
C#
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using UnityEngine;
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using System.Collections;
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using System.Collections.Generic;
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//-----------------------------------------------------------------------------
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// Copyright 2015-2024 RenderHeads Ltd. All rights reserved.
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//-----------------------------------------------------------------------------
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namespace RenderHeads.Media.AVProVideo
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{
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public static class Helper
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{
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public const string AVProVideoVersion = "3.0.8";
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public sealed class ExpectedPluginVersion
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{
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public const string Windows = "3.0.8";
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public const string WinRT = "3.0.8";
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public const string Android = "3.0.8";
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public const string Apple = "3.0.8";
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}
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public const string UnityBaseTextureName = "_MainTex";
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public const string UnityBaseTextureName_URP = "_BaseMap";
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public const string UnityBaseTextureName_HDRP = "_BaseColorMap";
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public static string GetPath(MediaPathType location)
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{
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string result = string.Empty;
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switch (location)
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{
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case MediaPathType.AbsolutePathOrURL:
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break;
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case MediaPathType.RelativeToDataFolder:
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result = Application.dataPath;
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break;
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case MediaPathType.RelativeToPersistentDataFolder:
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result = Application.persistentDataPath;
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break;
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case MediaPathType.RelativeToProjectFolder:
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#if !UNITY_WINRT_8_1
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string path = "..";
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#if UNITY_STANDALONE_OSX && !UNITY_EDITOR_OSX
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path += "/..";
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#endif
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result = System.IO.Path.GetFullPath(System.IO.Path.Combine(Application.dataPath, path));
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result = result.Replace('\\', '/');
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#endif
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break;
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case MediaPathType.RelativeToStreamingAssetsFolder:
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result = Application.streamingAssetsPath;
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break;
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}
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return result;
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}
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public static string GetFilePath(string path, MediaPathType location)
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{
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string result = string.Empty;
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if (!string.IsNullOrEmpty(path))
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{
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switch (location)
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{
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case MediaPathType.AbsolutePathOrURL:
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result = path;
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break;
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case MediaPathType.RelativeToDataFolder:
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case MediaPathType.RelativeToPersistentDataFolder:
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case MediaPathType.RelativeToProjectFolder:
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case MediaPathType.RelativeToStreamingAssetsFolder:
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result = System.IO.Path.Combine(GetPath(location), path);
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break;
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}
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}
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return result;
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}
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public static string GetFriendlyResolutionName(int width, int height, float fps)
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{
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// List of common 16:9 resolutions
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int[] areas = { 0, 7680 * 4320, 3840 * 2160, 2560 * 1440, 1920 * 1080, 1280 * 720, 853 * 480, 640 * 360, 426 * 240, 256 * 144 };
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string[] names = { "Unknown", "8K", "4K", "1440p", "1080p", "720p", "480p", "360p", "240p", "144p" };
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Debug.Assert(areas.Length == names.Length);
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// Find the closest resolution
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int closestAreaIndex = 0;
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int area = width * height;
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int minDelta = int.MaxValue;
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for (int i = 0; i < areas.Length; i++)
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{
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int d = Mathf.Abs(areas[i] - area);
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// TODO: add a maximum threshold to ignore differences that are too high
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if (d < minDelta)
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{
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closestAreaIndex = i;
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minDelta = d;
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// If the exact mode is found, early out
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if (d == 0)
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{
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break;
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}
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}
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}
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string result = names[closestAreaIndex];
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// Append frame rate if valid
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if (fps > 0f && !float.IsNaN(fps))
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{
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result += fps.ToString("0.##");
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}
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return result;
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}
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public static string GetErrorMessage(ErrorCode code)
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{
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string result = string.Empty;
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switch (code)
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{
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case ErrorCode.None:
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result = "No Error";
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break;
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case ErrorCode.LoadFailed:
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result = "Loading failed. File not found, codec not supported, video resolution too high or insufficient system resources.";
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#if UNITY_STANDALONE_WIN || UNITY_EDITOR_WIN
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// Add extra information for older Windows versions that don't have support for modern codecs
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if (SystemInfo.operatingSystem.StartsWith("Windows XP") ||
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SystemInfo.operatingSystem.StartsWith("Windows Vista"))
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{
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result += " NOTE: Windows XP and Vista don't have native support for H.264 codec. Consider using an older codec such as DivX or installing 3rd party codecs such as LAV Filters.";
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}
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#endif
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break;
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case ErrorCode.DecodeFailed:
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result = "Decode failed. Possible codec not supported, video resolution/bit-depth too high, or insufficient system resources.";
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#if UNITY_ANDROID
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result += " On Android this is generally due to the hardware not having enough resources to decode the video. Most Android devices can only handle a maximum of one 4K video at once.";
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#endif
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break;
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}
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return result;
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}
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public static string GetPlatformName(Platform platform)
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{
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string result = "Unknown";
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switch (platform)
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{
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case Platform.WindowsUWP:
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result = "Windows UWP";
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break;
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default:
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result = platform.ToString();
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break;
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}
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return result;
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}
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public static string[] GetPlatformNames()
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{
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return new string[] {
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GetPlatformName(Platform.Windows),
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GetPlatformName(Platform.macOS),
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GetPlatformName(Platform.iOS),
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GetPlatformName(Platform.tvOS),
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GetPlatformName(Platform.visionOS),
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GetPlatformName(Platform.Android),
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GetPlatformName(Platform.WindowsUWP),
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GetPlatformName(Platform.WebGL),
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};
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}
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#if AVPROVIDEO_DISABLE_LOGGING
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[System.Diagnostics.Conditional("ALWAYS_FALSE")]
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#endif
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public static void LogInfo(string message, Object context = null)
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{
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if (context == null)
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{
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Debug.Log("[AVProVideo] " + message);
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}
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else
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{
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Debug.Log("[AVProVideo] " + message, context);
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}
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}
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public static int GetUnityAudioSampleRate()
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{
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// For standalone builds (not in the editor):
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// In Unity 4.6, 5.0, 5.1 when audio is disabled there is no indication from the API.
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// But in 5.2.0 and above, it logs an error when trying to call
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// AudioSettings.GetDSPBufferSize() or AudioSettings.outputSampleRate
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// So to prevent the error, check if AudioSettings.GetConfiguration().sampleRate == 0
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return (AudioSettings.GetConfiguration().sampleRate == 0) ? 0 : AudioSettings.outputSampleRate;
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}
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public static int GetUnityAudioSpeakerCount()
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{
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switch (AudioSettings.GetConfiguration().speakerMode)
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{
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case AudioSpeakerMode.Mono: return 1;
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case AudioSpeakerMode.Stereo: return 2;
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case AudioSpeakerMode.Quad: return 4;
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case AudioSpeakerMode.Surround: return 5;
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case AudioSpeakerMode.Mode5point1: return 6;
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case AudioSpeakerMode.Mode7point1: return 8;
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case AudioSpeakerMode.Prologic: return 2;
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}
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return 0;
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}
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// Returns a valid range to use for a timeline display
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// Either it will return the range 0..duration, or
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// for live streams it will return first seekable..last seekable time
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public static TimeRange GetTimelineRange(double duration, TimeRanges seekable)
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{
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TimeRange result = new TimeRange();
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if (duration >= 0.0 && duration < 2e10)
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{
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// Duration is valid
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result.startTime = 0f;
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result.duration = duration;
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}
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else
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{
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// Duration is invalid, so it could be a live stream, so derive from seekable range
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result.startTime = seekable.MinTime;
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result.duration = seekable.Duration;
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}
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return result;
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}
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public const double SecondsToHNS = 10000000.0;
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public const double MilliSecondsToHNS = 10000.0;
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public static string GetTimeString(double timeSeconds, bool showMilliseconds = false)
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{
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float totalSeconds = (float)timeSeconds;
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int hours = Mathf.FloorToInt(totalSeconds / (60f * 60f));
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float usedSeconds = hours * 60f * 60f;
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int minutes = Mathf.FloorToInt((totalSeconds - usedSeconds) / 60f);
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usedSeconds += minutes * 60f;
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int seconds = Mathf.FloorToInt(totalSeconds - usedSeconds);
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string result;
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if (hours <= 0)
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{
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if (showMilliseconds)
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{
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int milliSeconds = (int)((totalSeconds - Mathf.Floor(totalSeconds)) * 1000f);
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result = string.Format("{0:00}:{1:00}:{2:000}", minutes, seconds, milliSeconds);
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}
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else
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{
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result = string.Format("{0:00}:{1:00}", minutes, seconds);
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}
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}
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else
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{
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if (showMilliseconds)
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{
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int milliSeconds = (int)((totalSeconds - Mathf.Floor(totalSeconds)) * 1000f);
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result = string.Format("{2}:{0:00}:{1:00}:{3:000}", minutes, seconds, hours, milliSeconds);
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}
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else
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{
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result = string.Format("{2}:{0:00}:{1:00}", minutes, seconds, hours);
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}
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}
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return result;
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}
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/// <summary>
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/// Convert texture transform matrix to an enum of orientation types
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/// </summary>
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public static Orientation GetOrientation(float[] t)
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{
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Orientation result = Orientation.Landscape;
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if (t != null)
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{
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// TODO: check that the Portrait and PortraitFlipped are the right way around
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if (t[0] == 0f && t[1]== 1f && t[2] == -1f && t[3] == 0f)
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{
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result = Orientation.Portrait;
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} else
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if (t[0] == 0f && t[1] == -1f && t[2] == 1f && t[3] == 0f)
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{
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result = Orientation.PortraitFlipped;
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} else
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if (t[0]== 1f && t[1] == 0f && t[2] == 0f && t[3] == 1f)
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{
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result = Orientation.Landscape;
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} else
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if (t[0] == -1f && t[1] == 0f && t[2] == 0f && t[3] == -1f)
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{
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result = Orientation.LandscapeFlipped;
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}
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else
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if (t[0] == 0f && t[1] == 1f && t[2] == 1f && t[3] == 0f)
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{
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result = Orientation.PortraitHorizontalMirror;
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}
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}
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return result;
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}
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private static Matrix4x4 PortraitMatrix = Matrix4x4.TRS(new Vector3(0f, 1f, 0f), Quaternion.Euler(0f, 0f, -90f), Vector3.one);
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private static Matrix4x4 PortraitFlippedMatrix = Matrix4x4.TRS(new Vector3(1f, 0f, 0f), Quaternion.Euler(0f, 0f, 90f), Vector3.one);
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private static Matrix4x4 LandscapeFlippedMatrix = Matrix4x4.TRS(new Vector3(1f, 1f, 0f), Quaternion.Euler(0f, 0f, -180f), Vector3.one);
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public static Matrix4x4 GetMatrixForOrientation(Orientation ori)
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{
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Matrix4x4 result;
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switch (ori)
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{
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case Orientation.Landscape:
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result = Matrix4x4.identity;
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break;
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case Orientation.LandscapeFlipped:
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result = LandscapeFlippedMatrix;
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break;
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case Orientation.Portrait:
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result = PortraitMatrix;
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break;
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case Orientation.PortraitFlipped:
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result = PortraitFlippedMatrix;
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break;
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case Orientation.PortraitHorizontalMirror:
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result = new Matrix4x4();
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result.SetColumn(0, new Vector4(0f, 1f, 0f, 0f));
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result.SetColumn(1, new Vector4(1f, 0f, 0f, 0f));
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result.SetColumn(2, new Vector4(0f, 0f, 1f, 0f));
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result.SetColumn(3, new Vector4(0f, 0f, 0f, 1f));
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break;
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default:
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throw new System.Exception("Unknown Orientation type");
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}
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return result;
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}
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public static Matrix4x4 Matrix4x4FromAffineTransform(float[] affineXfrm)
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{
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Vector4 v0 = new Vector4(affineXfrm[0], affineXfrm[1], 0, 0);
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Vector4 v1 = new Vector4(affineXfrm[2], affineXfrm[3], 0, 0);
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Vector4 v2 = new Vector4( 0, 0, 1, 0);
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Vector4 v3 = new Vector4(affineXfrm[4], affineXfrm[5], 0, 1);
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return new Matrix4x4(v0, v1, v2, v3);
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}
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public static int ConvertTimeSecondsToFrame(double seconds, float frameRate)
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{
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// NOTE: Generally you should use RountToInt when converting from time to frame number
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// but because we're adding a half frame offset (which seems to be the safer thing to do) we need to FloorToInt
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seconds = System.Math.Max(0.0, seconds);
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frameRate = Mathf.Max(0f, frameRate);
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return (int)System.Math.Floor(frameRate * seconds);
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}
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public static double ConvertFrameToTimeSeconds(int frame, float frameRate)
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{
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frame = Mathf.Max(0, frame);
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frameRate = Mathf.Max(0f, frameRate);
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double frameDurationSeconds = 1.0 / frameRate;
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return ((double)frame * frameDurationSeconds) + (frameDurationSeconds * 0.5); // Add half a frame we that the time lands in the middle of the frame range and not at the edges
|
||
|
|
}
|
||
|
|
|
||
|
|
public static double FindNextKeyFrameTimeSeconds(double seconds, float frameRate, int keyFrameInterval)
|
||
|
|
{
|
||
|
|
seconds = System.Math.Max(0.0, seconds);
|
||
|
|
frameRate = Mathf.Max(0f, frameRate);
|
||
|
|
keyFrameInterval = Mathf.Max(0, keyFrameInterval);
|
||
|
|
int currentFrame = Helper.ConvertTimeSecondsToFrame(seconds, frameRate);
|
||
|
|
// TODO: allow specifying a minimum number of frames so that if currentFrame is too close to nextKeyFrame, it will calculate the next-next keyframe
|
||
|
|
int nextKeyFrame = keyFrameInterval * Mathf.CeilToInt((float)(currentFrame + 1) / (float)keyFrameInterval);
|
||
|
|
return Helper.ConvertFrameToTimeSeconds(nextKeyFrame, frameRate);
|
||
|
|
}
|
||
|
|
|
||
|
|
public static System.DateTime ConvertSecondsSince1970ToDateTime(double secondsSince1970)
|
||
|
|
{
|
||
|
|
System.TimeSpan time = System.TimeSpan.FromSeconds(secondsSince1970);
|
||
|
|
return new System.DateTime(1970, 1, 1).Add(time);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if (UNITY_EDITOR_WIN || (!UNITY_EDITOR && UNITY_STANDALONE_WIN))
|
||
|
|
[System.Runtime.InteropServices.DllImport("kernel32.dll", CharSet = System.Runtime.InteropServices.CharSet.Unicode, EntryPoint = "GetShortPathNameW", SetLastError=true)]
|
||
|
|
private static extern int GetShortPathName([System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPWStr)] string pathName,
|
||
|
|
[System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPWStr)] System.Text.StringBuilder shortName,
|
||
|
|
int cbShortName);
|
||
|
|
|
||
|
|
// Handle very long file paths by converting to DOS 8.3 format
|
||
|
|
internal static string ConvertLongPathToShortDOS83Path(string path)
|
||
|
|
{
|
||
|
|
const string pathToken = @"\\?\";
|
||
|
|
string result = pathToken + path.Replace("/","\\");
|
||
|
|
int length = GetShortPathName(result, null, 0);
|
||
|
|
if (length > 0)
|
||
|
|
{
|
||
|
|
System.Text.StringBuilder sb = new System.Text.StringBuilder(length);
|
||
|
|
if (0 != GetShortPathName(result, sb, length))
|
||
|
|
{
|
||
|
|
result = sb.ToString().Replace(pathToken, "");
|
||
|
|
Debug.LogWarning("[AVProVideo] Long path detected. Changing to DOS 8.3 format");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// Converts a non-readable texture to a readable Texture2D.
|
||
|
|
// "targetTexture" can be null or you can pass in an existing texture.
|
||
|
|
// Remember to Destroy() the returned texture after finished with it
|
||
|
|
public static Texture2D GetReadableTexture(Texture inputTexture, bool requiresVerticalFlip, Orientation ori, Texture2D targetTexture = null)
|
||
|
|
{
|
||
|
|
Texture2D resultTexture = targetTexture;
|
||
|
|
|
||
|
|
RenderTexture prevRT = RenderTexture.active;
|
||
|
|
|
||
|
|
int textureWidth = inputTexture.width;
|
||
|
|
int textureHeight = inputTexture.height;
|
||
|
|
#if UNITY_EDITOR_OSX || UNITY_STANDALONE_OSX || UNITY_IPHONE || UNITY_IOS || UNITY_TVOS
|
||
|
|
if (ori == Orientation.Portrait || ori == Orientation.PortraitFlipped)
|
||
|
|
{
|
||
|
|
textureWidth = inputTexture.height;
|
||
|
|
textureHeight = inputTexture.width;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// Blit the texture to a temporary RenderTexture
|
||
|
|
// This handles any format conversion that is required and allows us to use ReadPixels to copy texture from RT to readable texture
|
||
|
|
RenderTexture tempRT = RenderTexture.GetTemporary(textureWidth, textureHeight, 0, RenderTextureFormat.ARGB32);
|
||
|
|
|
||
|
|
if (ori == Orientation.Landscape)
|
||
|
|
{
|
||
|
|
if (!requiresVerticalFlip)
|
||
|
|
{
|
||
|
|
Graphics.Blit(inputTexture, tempRT);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// The above Blit can't flip unless using a material, so we use Graphics.DrawTexture instead
|
||
|
|
GL.PushMatrix();
|
||
|
|
RenderTexture.active = tempRT;
|
||
|
|
GL.LoadPixelMatrix(0f, tempRT.width, 0f, tempRT.height);
|
||
|
|
Rect sourceRect = new Rect(0f, 0f, 1f, 1f);
|
||
|
|
// NOTE: not sure why we need to set y to -1, without this there is a 1px gap at the bottom
|
||
|
|
Rect destRect = new Rect(0f, -1f, tempRT.width, tempRT.height);
|
||
|
|
|
||
|
|
Graphics.DrawTexture(destRect, inputTexture, sourceRect, 0, 0, 0, 0);
|
||
|
|
GL.PopMatrix();
|
||
|
|
GL.InvalidateState();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#if UNITY_EDITOR_OSX || UNITY_STANDALONE_OSX || UNITY_IPHONE || UNITY_IOS || UNITY_TVOS
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Matrix4x4 m = Matrix4x4.identity;
|
||
|
|
switch (ori)
|
||
|
|
{
|
||
|
|
case Orientation.Portrait:
|
||
|
|
m = Matrix4x4.TRS(new Vector3(0f, inputTexture.width, 0f), Quaternion.Euler(0f, 0f, -90f), Vector3.one);
|
||
|
|
break;
|
||
|
|
case Orientation.PortraitFlipped:
|
||
|
|
m = Matrix4x4.TRS(new Vector3(inputTexture.height, 0f, 0f), Quaternion.Euler(0f, 0f, 90f), Vector3.one);
|
||
|
|
break;
|
||
|
|
case Orientation.LandscapeFlipped:
|
||
|
|
m = Matrix4x4.TRS(new Vector3(inputTexture.width, inputTexture.height, 0f), Quaternion.identity, new Vector3(-1f, -1f, 1f));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// The above Blit can't flip unless using a material, so we use Graphics.DrawTexture instead
|
||
|
|
GL.InvalidateState();
|
||
|
|
RenderTexture.active = tempRT;
|
||
|
|
GL.Clear(false, true, Color.black);
|
||
|
|
GL.PushMatrix();
|
||
|
|
GL.LoadPixelMatrix(0f, tempRT.width, 0f, tempRT.height);
|
||
|
|
Rect sourceRect = new Rect(0f, 0f, 1f, 1f);
|
||
|
|
// NOTE: not sure why we need to set y to -1, without this there is a 1px gap at the bottom
|
||
|
|
Rect destRect = new Rect(0f, -1f, inputTexture.width, inputTexture.height);
|
||
|
|
GL.MultMatrix(m);
|
||
|
|
|
||
|
|
Graphics.DrawTexture(destRect, inputTexture, sourceRect, 0, 0, 0, 0);
|
||
|
|
GL.PopMatrix();
|
||
|
|
GL.InvalidateState();
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (resultTexture == null)
|
||
|
|
{
|
||
|
|
resultTexture = new Texture2D(textureWidth, textureHeight, TextureFormat.ARGB32, false);
|
||
|
|
}
|
||
|
|
|
||
|
|
RenderTexture.active = tempRT;
|
||
|
|
resultTexture.ReadPixels(new Rect(0f, 0f, textureWidth, textureHeight), 0, 0, false);
|
||
|
|
resultTexture.Apply(false, false);
|
||
|
|
RenderTexture.ReleaseTemporary(tempRT);
|
||
|
|
|
||
|
|
RenderTexture.active = prevRT;
|
||
|
|
|
||
|
|
return resultTexture;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Converts a non-readable texture to a readable Texture2D.
|
||
|
|
// "targetTexture" can be null or you can pass in an existing texture.
|
||
|
|
// Remember to Destroy() the returned texture after finished with it
|
||
|
|
public static Texture2D GetReadableTexture(RenderTexture inputTexture, Texture2D targetTexture = null)
|
||
|
|
{
|
||
|
|
if (targetTexture == null)
|
||
|
|
{
|
||
|
|
targetTexture = new Texture2D(inputTexture.width, inputTexture.height, TextureFormat.ARGB32, false);
|
||
|
|
}
|
||
|
|
|
||
|
|
RenderTexture prevRT = RenderTexture.active;
|
||
|
|
RenderTexture.active = inputTexture;
|
||
|
|
targetTexture.ReadPixels(new Rect(0f, 0f, inputTexture.width, inputTexture.height), 0, 0, false);
|
||
|
|
targetTexture.Apply(false, false);
|
||
|
|
RenderTexture.active = prevRT;
|
||
|
|
|
||
|
|
return targetTexture;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|