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Enable software tonemap for dolby vision

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This applies software tonemapx filter for dolby vision videos that have no compatability fallback.

Due to the complexity of the reshaping process, this is quite CPU-intensive. For real-time transcoding and tonemapping of 4K 60fps content, a CPU with 16 cores of Zen3-level performance is recommended.

Signed-off-by: gnattu <gnattuoc@me.com>
This commit is contained in:
gnattu
2024-09-03 14:39:05 +08:00
parent 7207749044
commit ae82a4eee0
2 changed files with 20 additions and 11 deletions
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22
MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
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@@ -296,14 +296,12 @@ namespace MediaBrowser.Controller.MediaEncoding
if (state.VideoStream is null
|| !options.EnableTonemapping
|| GetVideoColorBitDepth(state) != 10
|| !_mediaEncoder.SupportsFilter("tonemapx")
|| !(string.Equals(state.VideoStream?.ColorTransfer, "smpte2084", StringComparison.OrdinalIgnoreCase) || string.Equals(state.VideoStream?.ColorTransfer, "arib-std-b67", StringComparison.OrdinalIgnoreCase)))
|| !_mediaEncoder.SupportsFilter("tonemapx"))
{
return false;
}
return state.VideoStream.VideoRange == VideoRange.HDR
&& state.VideoStream.VideoRangeType is VideoRangeType.HDR10 or VideoRangeType.HLG or VideoRangeType.DOVIWithHDR10 or VideoRangeType.DOVIWithHLG;
return state.VideoStream.VideoRange == VideoRange.HDR;
}
private bool IsHwTonemapAvailable(EncodingJobInfo state, EncodingOptions options)
@@ -3435,6 +3433,7 @@ namespace MediaBrowser.Controller.MediaEncoding
var doDeintHevc = state.DeInterlace("h265", true) || state.DeInterlace("hevc", true);
var doDeintH2645 = doDeintH264 || doDeintHevc;
var doToneMap = IsSwTonemapAvailable(state, options);
var requireDoviReshaping = doToneMap && state.VideoStream.VideoRangeType == VideoRangeType.DOVI;
var hasSubs = state.SubtitleStream is not null && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
var hasTextSubs = hasSubs && state.SubtitleStream.IsTextSubtitleStream;
@@ -3472,11 +3471,13 @@ namespace MediaBrowser.Controller.MediaEncoding
// sw scale
mainFilters.Add(swScaleFilter);
// sw tonemap <= TODO: finish dovi tone mapping
// sw tonemap
if (doToneMap)
{
var tonemapArgs = $"tonemapx=tonemap={options.TonemappingAlgorithm}:desat={options.TonemappingDesat}:peak={options.TonemappingPeak}:t=bt709:m=bt709:p=bt709:format={outFormat}";
// tonemapx requires yuv420p10 input for dovi reshaping, let ffmpeg convert the frame when necessary
var tonemapFormat = requireDoviReshaping ? "yuv420p" : outFormat;
var tonemapArgs = $"tonemapx=tonemap={options.TonemappingAlgorithm}:desat={options.TonemappingDesat}:peak={options.TonemappingPeak}:t=bt709:m=bt709:p=bt709:format={tonemapFormat}";
if (options.TonemappingParam != 0)
{
@@ -3490,6 +3491,13 @@ namespace MediaBrowser.Controller.MediaEncoding
}
mainFilters.Add(tonemapArgs);
// convert back to nv12 for VAAPI encoders
// Q: Is this still being used?
if (requireDoviReshaping && isVaapiEncoder)
{
mainFilters.Add("format=" + outFormat);
}
}
else
{