VideoPlayer in MonoGame eats whole RAM, but in XNA don't. How to fix it?

Iriasviel · October 21, 2015, 11:45pm

Well, i wanted to place video to my MonoGame project but when i played it, after few seconds, computer freezed. When i restarted PC and launched Task Manager and then my game again then i saw that my 8GB of RAM was eaten while video was playing. I checked code but there were no mistakes.

A while ago i made XNA project and putted the same code and everything was OK, no problems at all, video was played perfectly and game used only 50 MB of RAM.

So now i think it’s MonoGame bug, anyone knows how to fix it?
Maybe it’s Microsoft.Xna.Framework.Media from MonoGame problem?
Is there any way replace this?

Thank you for your time

Tom · October 22, 2015, 6:46am

We did a bunch of work on the MonoGame video support and things are better, but still not perfect.

Might want to experiment using our implementations of Video and VideoPlayer for WMS:

github.com

SickheadGames/MonoGame/blob/stable_BtA/MonoGame.Framework/Media/Video.WMS.cs

using System.Diagnostics;
using System.IO;
using System.Runtime.InteropServices;
using Microsoft.Xna.Framework.Graphics;
using SharpDX;
using SharpDX.MediaFoundation;
using System;
using System.Collections.Generic;

namespace Microsoft.Xna.Framework.Media
{
    public sealed partial class Video : IDisposable
    {        
        internal Topology Topology { get; private set; }
        internal VideoSampleGrabber SampleGrabber { get; private set; }

        private readonly List<SharpDX.MediaFoundation.MediaSource> _sources = new List<SharpDX.MediaFoundation.MediaSource>();
        
        private static Video PlatformFromUri(Uri uri)
        {

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github.com

SickheadGames/MonoGame/blob/stable_BtA/MonoGame.Framework/Media/VideoPlayer.WMS.cs

using System.Runtime.InteropServices;
using System.Threading;
using Microsoft.Xna.Framework.Graphics;
using SharpDX;
using SharpDX.MediaFoundation;
using SharpDX.Win32;
using System;

namespace Microsoft.Xna.Framework.Media
{
    public sealed partial class VideoPlayer : IDisposable
    {
        #region Supporting Types

        private class TextureBuffer : IDisposable
        {
            private readonly Texture2D[] _frames;
            private int _index;

            public readonly int Width;

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We still feel there are some possible bugs in there, but we’re using it in a project that plays 1000s of videos a day… so it is fairly solid.

Iriasviel · October 24, 2015, 4:23pm

Well, thank you for your response, but actually i have no idea how to use this
I think i need to wait for next MonoGame installer release :'c