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Remove the redundant -sc_threshold from hw encoders

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nyanmisaka 2022-06-01 04:09:04 +08:00
parent 84c9e7a22b
commit 0e8da3e805
1 changed files with 7 additions and 2 deletions
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9
MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
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@ -1239,10 +1239,9 @@ namespace MediaBrowser.Controller.MediaEncoding
// Example: we encoded half of desired length, then codec detected // Example: we encoded half of desired length, then codec detected
// scene cut and inserted a keyframe; next forced keyframe would // scene cut and inserted a keyframe; next forced keyframe would
// be created outside of segment, which breaks seeking. // be created outside of segment, which breaks seeking.
// -sc_threshold 0 is used to prevent the hardware encoder from post processing to break the set keyframe.
gopArg = string.Format( gopArg = string.Format(
CultureInfo.InvariantCulture, CultureInfo.InvariantCulture,
" -g:v:0 {0} -keyint_min:v:0 {0} -sc_threshold:v:0 0", " -g:v:0 {0} -keyint_min:v:0 {0}",
Math.Ceiling(segmentLength * framerate.Value)); Math.Ceiling(segmentLength * framerate.Value));
} }
@ -1262,6 +1261,12 @@ namespace MediaBrowser.Controller.MediaEncoding
|| string.Equals(codec, "hevc_vaapi", StringComparison.OrdinalIgnoreCase)) || string.Equals(codec, "hevc_vaapi", StringComparison.OrdinalIgnoreCase))
{ {
args += keyFrameArg; args += keyFrameArg;
// prevent the libx264 from post processing to break the set keyframe.
if (string.Equals(codec, "libx264", StringComparison.OrdinalIgnoreCase))
{
args += " -sc_threshold:v:0 0";
}
} }
else else
{ {