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Add limiting max keyframe interval when full transcoding
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@ -927,6 +927,18 @@ namespace MediaBrowser.Api.Playback.Hls
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" -force_key_frames:0 \"expr:gte(t,{0}+n_forced*{1})\"",
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GetStartNumber(state) * state.SegmentLength,
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state.SegmentLength.ToString(CultureInfo.InvariantCulture));
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if (state.TargetFramerate.HasValue)
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{
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// This is to make sure keyframe interval is limited to our segment,
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// as forcing keyframes is not enough.
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// Example: we ecoded half of desired length, then codec detected
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// scene cut and inserted a keyframe; next forced keyframe would
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// be created outside of segment, which breaks seeking.
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keyFrameArg += string.Format(
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" -g {0} -keyint_min {0}",
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(int)(state.SegmentLength * state.TargetFramerate)
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);
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}
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var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
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