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Recalculate trickplay image height for anamorphic videos

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Signed-off-by: gnattu <gnattuoc@me.com>
This commit is contained in:
gnattu
2024-05-08 08:33:23 +08:00
parent 06a5ddda5e
commit c6e29647fc
2 changed files with 33 additions and 10 deletions
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27
MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
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@@ -3172,7 +3172,9 @@ namespace MediaBrowser.Controller.MediaEncoding
int? requestedMaxHeight)
{
var isV4l2 = string.Equals(videoEncoder, "h264_v4l2m2m", StringComparison.OrdinalIgnoreCase);
var isMjpeg = videoEncoder is not null && videoEncoder.Contains("mjpeg", StringComparison.OrdinalIgnoreCase);
var scaleVal = isV4l2 ? 64 : 2;
var targetAr = isMjpeg ? "(a*sar)" : "a"; // manually calculate AR when using mjpeg encoder
// If fixed dimensions were supplied
if (requestedWidth.HasValue && requestedHeight.HasValue)
@@ -3201,10 +3203,11 @@ namespace MediaBrowser.Controller.MediaEncoding
return string.Format(
CultureInfo.InvariantCulture,
@"scale=trunc(min(max(iw\,ih*a)\,min({0}\,{1}*a))/{2})*{2}:trunc(min(max(iw/a\,ih)\,min({0}/a\,{1}))/2)*2",
@"scale=trunc(min(max(iw\,ih*{3})\,min({0}\,{1}*{3}))/{2})*{2}:trunc(min(max(iw/{3}\,ih)\,min({0}/{3}\,{1}))/2)*2",
maxWidthParam,
maxHeightParam,
scaleVal);
scaleVal,
targetAr);
}
// If a fixed width was requested
@@ -3220,8 +3223,9 @@ namespace MediaBrowser.Controller.MediaEncoding
return string.Format(
CultureInfo.InvariantCulture,
"scale={0}:trunc(ow/a/2)*2",
widthParam);
"scale={0}:trunc(ow/{1}/2)*2",
widthParam,
targetAr);
}
// If a fixed height was requested
@@ -3231,9 +3235,10 @@ namespace MediaBrowser.Controller.MediaEncoding
return string.Format(
CultureInfo.InvariantCulture,
"scale=trunc(oh*a/{1})*{1}:{0}",
"scale=trunc(oh*{2}/{1})*{1}:{0}",
heightParam,
scaleVal);
scaleVal,
targetAr);
}
// If a max width was requested
@@ -3243,9 +3248,10 @@ namespace MediaBrowser.Controller.MediaEncoding
return string.Format(
CultureInfo.InvariantCulture,
@"scale=trunc(min(max(iw\,ih*a)\,{0})/{1})*{1}:trunc(ow/a/2)*2",
@"scale=trunc(min(max(iw\,ih*{2})\,{0})/{1})*{1}:trunc(ow/{2}/2)*2",
maxWidthParam,
scaleVal);
scaleVal,
targetAr);
}
// If a max height was requested
@@ -3255,9 +3261,10 @@ namespace MediaBrowser.Controller.MediaEncoding
return string.Format(
CultureInfo.InvariantCulture,
@"scale=trunc(oh*a/{1})*{1}:min(max(iw/a\,ih)\,{0})",
@"scale=trunc(oh*{2}/{1})*{1}:min(max(iw/{2}\,ih)\,{0})",
maxHeightParam,
scaleVal);
scaleVal,
targetAr);
}
return string.Empty;