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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="QueueResourceService.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// Defines the QueueResourceService type.
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.Services.Queue
{
using System;
using System.Collections.Generic;
using HandBrake.Interop.Interop;
using HandBrake.Interop.Interop.Model.Encoding;
using HandBrakeWPF.Services.Encode.Model;
using HandBrakeWPF.Services.Interfaces;
public class QueueResourceService
{
private readonly IUserSettingService userSettingService;
private readonly object lockOjb = new object();
private readonly HashSet<Guid> qsvInstances = new HashSet<Guid>();
private readonly HashSet<Guid> nvencInstances = new HashSet<Guid>();
private readonly HashSet<Guid> vceInstances = new HashSet<Guid>();
private readonly HashSet<Guid> totalInstances = new HashSet<Guid>();
private List<int> qsvGpus = new List<int>();
private int intelGpuCounter = -1; // Always default to the first card when allocating.
private int maxAllowedInstances;
private int totalQsvInstances;
private int totalVceInstances;
private int totalNvidiaInstances;
public QueueResourceService(IUserSettingService userSettingService)
{
this.userSettingService = userSettingService;
}
public int TotalActiveInstances
{
get
{
lock (this.lockOjb)
{
return this.totalInstances.Count;
}
}
}
public void Init()
{
this.maxAllowedInstances = this.userSettingService.GetUserSetting<int>(UserSettingConstants.SimultaneousEncodes);
// Allow QSV adapter scaling.
this.qsvGpus = HandBrakeEncoderHelpers.GetQsvAdaptorList();
this.totalQsvInstances = this.qsvGpus.Count * 2; // Allow two instances per GPU
// Most Nvidia cards support 3 instances.
this.totalNvidiaInstances = 3;
// VCE Support still TBD
this.totalVceInstances = 1;
// Whether using hardware or not, some CPU is needed so don't allow more jobs than CPU.
if (this.maxAllowedInstances > Utilities.SystemInfo.GetCpuCoreCount)
{
this.maxAllowedInstances = Utilities.SystemInfo.GetCpuCoreCount;
}
}
public Guid? GetToken(EncodeTask task)
{
lock (this.lockOjb)
{
switch (task.VideoEncoder)
{
case VideoEncoder.QuickSync:
case VideoEncoder.QuickSyncH265:
case VideoEncoder.QuickSyncH26510b:
if (this.qsvInstances.Count < this.totalQsvInstances && this.TotalActiveInstances <= this.maxAllowedInstances)
{
this.AllocateIntelGPU(task);
Guid guid = Guid.NewGuid();
this.qsvInstances.Add(guid);
this.totalInstances.Add(guid);
return guid;
}
else
{
return Guid.Empty; // Busy
}
case VideoEncoder.NvencH264:
case VideoEncoder.NvencH265:
if (this.nvencInstances.Count < this.totalNvidiaInstances && this.TotalActiveInstances <= this.maxAllowedInstances)
{
Guid guid = Guid.NewGuid();
this.nvencInstances.Add(guid);
this.totalInstances.Add(guid);
return guid;
}
else
{
return Guid.Empty; // Busy
}
case VideoEncoder.VceH264:
case VideoEncoder.VceH265:
if (this.vceInstances.Count < this.totalVceInstances && this.TotalActiveInstances <= this.maxAllowedInstances)
{
Guid guid = Guid.NewGuid();
this.vceInstances.Add(guid);
this.totalInstances.Add(guid);
return guid;
}
else
{
return Guid.Empty; // Busy
}
default:
if (this.TotalActiveInstances <= this.maxAllowedInstances)
{
Guid guid = Guid.NewGuid();
this.totalInstances.Add(guid);
return guid;
}
else
{
return Guid.Empty; // Busy
}
}
}
}
public void ReleaseToken(VideoEncoder encoder, Guid? unlockKey)
{
if (unlockKey == null)
{
return;
}
lock (this.lockOjb)
{
if (this.totalInstances.Contains(unlockKey.Value))
{
this.totalInstances.Remove(unlockKey.Value);
}
switch (encoder)
{
case VideoEncoder.QuickSync:
case VideoEncoder.QuickSyncH265:
case VideoEncoder.QuickSyncH26510b:
if (this.qsvInstances.Contains(unlockKey.Value))
{
this.qsvInstances.Remove(unlockKey.Value);
}
break;
case VideoEncoder.NvencH264:
case VideoEncoder.NvencH265:
if (this.nvencInstances.Contains(unlockKey.Value))
{
this.nvencInstances.Remove(unlockKey.Value);
}
break;
case VideoEncoder.VceH264:
case VideoEncoder.VceH265:
if (this.vceInstances.Contains(unlockKey.Value))
{
this.vceInstances.Remove(unlockKey.Value);
}
break;
}
}
}
private void AllocateIntelGPU(EncodeTask task)
{
if (this.qsvGpus.Count <= 1)
{
return; // Not a multi-Intel-GPU system.
}
if (task.ExtraAdvancedArguments.Contains("gpu"))
{
return; // Users choice
}
if (!this.userSettingService.GetUserSetting<bool>(UserSettingConstants.ProcessIsolationEnabled))
{
return; // Multi-Process encoding is disabled.
}
if (this.userSettingService.GetUserSetting<int>(UserSettingConstants.SimultaneousEncodes) <= 1)
{
return; // Multi-Process encoding is disabled.
}
if (this.qsvInstances.Count == 0)
{
// Reset to -1 if we have no encoders currently in use.
this.intelGpuCounter = -1;
}
this.intelGpuCounter = this.intelGpuCounter + 1;
int modulus = this.intelGpuCounter % 2;
// For now, it's not expected we'll see users with more than 2 Intel GPUs. Typically 1 CPU, 1 Discrete will likely be the norm.
// Use the modulus of the above counter to flip between the 2 Intel encoders.
// We don't set GPU for the jobs 1, 3, 5, 7, 9 .... etc (Default to first)
// We do set the GPU for jobs 2, 4, 5, 8, 10 .... etc
if (modulus == 1)
{
task.ExtraAdvancedArguments = string.IsNullOrEmpty(task.ExtraAdvancedArguments)
? string.Format("gpu={0}", this.qsvGpus[1])
: string.Format("{0}:gpu={1}", task.ExtraAdvancedArguments, this.qsvGpus[1]);
}
}
}
}
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