2 files changed, 71 insertions, 0 deletions
diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
index 08ce19f69..c3a20cdb4 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
@@ -100,6 +100,13 @@ namespace MediaBrowser.Controller.MediaEncoding
             { "truehd", 6 },
         };
 
+        private static readonly string _defaultMjpegEncoder = "mjpeg";
+        private static readonly Dictionary<string, string> _mjpegCodecMap = new(StringComparer.OrdinalIgnoreCase)
+        {
+            { "vaapi", _defaultMjpegEncoder + "_vaapi" },
+            { "qsv", _defaultMjpegEncoder + "_qsv" }
+        };
+
         public static readonly string[] LosslessAudioCodecs = new string[]
         {
             "alac",
@@ -167,6 +174,24 @@ namespace MediaBrowser.Controller.MediaEncoding
             return defaultEncoder;
         }
 
+        private string GetMjpegEncoder(EncodingJobInfo state, EncodingOptions encodingOptions)
+        {
+            if (state.VideoType == VideoType.VideoFile)
+            {
+                var hwType = encodingOptions.HardwareAccelerationType;
+
+                if (!string.IsNullOrEmpty(hwType)
+                    && encodingOptions.EnableHardwareEncoding
+                    && _mjpegCodecMap.TryGetValue(hwType, out var preferredEncoder)
+                    && _mediaEncoder.SupportsEncoder(preferredEncoder))
+                {
+                    return preferredEncoder;
+                }
+            }
+
+            return _defaultMjpegEncoder;
+        }
+
         private bool IsVaapiSupported(EncodingJobInfo state)
         {
             // vaapi will throw an error with this input
@@ -300,6 +325,11 @@ namespace MediaBrowser.Controller.MediaEncoding
                     return GetH264Encoder(state, encodingOptions);
                 }
 
+                if (string.Equals(codec, "mjpeg", StringComparison.OrdinalIgnoreCase))
+                {
+                    return GetMjpegEncoder(state, encodingOptions);
+                }
+
                 if (string.Equals(codec, "vp8", StringComparison.OrdinalIgnoreCase)
                     || string.Equals(codec, "vpx", StringComparison.OrdinalIgnoreCase))
                 {
@@ -4917,6 +4947,15 @@ namespace MediaBrowser.Controller.MediaEncoding
             subFilters?.RemoveAll(filter => string.IsNullOrEmpty(filter));
             overlayFilters?.RemoveAll(filter => string.IsNullOrEmpty(filter));
 
+            var framerate = GetFramerateParam(state);
+            if (framerate.HasValue)
+            {
+                mainFilters.Insert(0, string.Format(
+                    CultureInfo.InvariantCulture,
+                    "fps={0}",
+                    framerate.Value));
+            }
+
             var mainStr = string.Empty;
             if (mainFilters?.Count > 0)
             {
diff --git a/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs b/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs
index 4114dea4f..c2cef4978 100644
--- a/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs
+++ b/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs
@@ -4,8 +4,10 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Threading;
 using System.Threading.Tasks;
+using MediaBrowser.Model.Configuration;
 using MediaBrowser.Model.Dlna;
 using MediaBrowser.Model.Drawing;
 using MediaBrowser.Model.Dto;
@@ -138,6 +140,36 @@ namespace MediaBrowser.Controller.MediaEncoding
         Task<string> ExtractVideoImage(string inputFile, string container, MediaSourceInfo mediaSource, MediaStream imageStream, int? imageStreamIndex, ImageFormat? targetFormat, CancellationToken cancellationToken);
 
         /// <summary>
+        /// Extracts the video images on interval.
+        /// </summary>
+        /// <param name="inputFile">Input file.</param>
+        /// <param name="container">Video container type.</param>
+        /// <param name="mediaSource">Media source information.</param>
+        /// <param name="imageStream">Media stream information.</param>
+        /// <param name="maxWidth">The maximum width.</param>
+        /// <param name="interval">The interval.</param>
+        /// <param name="allowHwAccel">Allow for hardware acceleration.</param>
+        /// <param name="threads">The input/output thread count for ffmpeg.</param>
+        /// <param name="qualityScale">The qscale value for ffmpeg.</param>
+        /// <param name="priority">The process priority for the ffmpeg process.</param>
+        /// <param name="encodingHelper">EncodingHelper instance.</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <returns>Directory where images where extracted. A given image made before another will always be named with a lower number.</returns>
+        Task<string> ExtractVideoImagesOnIntervalAccelerated(
+            string inputFile,
+            string container,
+            MediaSourceInfo mediaSource,
+            MediaStream imageStream,
+            int maxWidth,
+            TimeSpan interval,
+            bool allowHwAccel,
+            int? threads,
+            int? qualityScale,
+            ProcessPriorityClass? priority,
+            EncodingHelper encodingHelper,
+            CancellationToken cancellationToken);
+
+        /// <summary>
         /// Gets the media info.
         /// </summary>
         /// <param name="request">The request.</param>