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minor improvements

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This commit is contained in:
nyanmisaka 2020-03-31 04:04:55 +08:00
parent 0af353404c
commit 95c5c08610
2 changed files with 18 additions and 14 deletions
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14
MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs
View File

@ -942,7 +942,8 @@ namespace MediaBrowser.Api.Playback.Hls
// as forcing keyframes is not enough.
// Example: we encoded half of desired length, then codec detected
// 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(
CultureInfo.InvariantCulture,
" -g {0} -keyint_min {0} -sc_threshold 0",
@ -968,17 +969,16 @@ namespace MediaBrowser.Api.Playback.Hls
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
// Add resolution params, if specified
if (!hasGraphicalSubs)
{
args += EncodingHelper.GetOutputSizeParam(state, encodingOptions, codec);
}
// This is for graphical subs
if (hasGraphicalSubs)
{
args += EncodingHelper.GetGraphicalSubtitleParam(state, encodingOptions, codec);
}
// Add resolution params, if specified
else
{
args += EncodingHelper.GetOutputSizeParam(state, encodingOptions, codec);
}
// -start_at_zero is necessary to use with -ss when seeking,
// otherwise the target position cannot be determined.

18
MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
View File

@ -1588,9 +1588,11 @@ namespace MediaBrowser.Controller.MediaEncoding
// Setup subtitle scaling
if (state.VideoStream != null && state.VideoStream.Width.HasValue && state.VideoStream.Height.HasValue)
{
// force_original_aspect_ratio=decrease
// Enable decreasing output video width or height if necessary to keep the original aspect ratio
videoSizeParam = string.Format(
CultureInfo.InvariantCulture,
"scale={0}:{1}",
"scale={0}:{1}:force_original_aspect_ratio=decrease",
state.VideoStream.Width.Value,
state.VideoStream.Height.Value);
@ -1601,6 +1603,8 @@ namespace MediaBrowser.Controller.MediaEncoding
}
// For VAAPI and CUVID decoder
// these encoders cannot automatically adjust the size of graphical subtitles to fit the output video,
// thus needs to be manually adjusted.
if (string.Equals(options.HardwareAccelerationType, "vaapi", StringComparison.OrdinalIgnoreCase)
|| (videoDecoder ?? string.Empty).IndexOf("cuvid", StringComparison.OrdinalIgnoreCase) != -1)
{
@ -1613,7 +1617,7 @@ namespace MediaBrowser.Controller.MediaEncoding
{
videoSizeParam = string.Format(
CultureInfo.InvariantCulture,
"scale={0}:{1}",
"scale={0}:{1}:force_original_aspect_ratio=decrease",
width.Value,
height.Value);
}
@ -1741,7 +1745,7 @@ namespace MediaBrowser.Controller.MediaEncoding
var hasTextSubs = state.SubtitleStream != null && state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
if (string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase) || (string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) && !hasTextSubs)
if (string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase) || (string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) && !hasTextSubs)
&& width.HasValue
&& height.HasValue)
{
@ -2043,7 +2047,7 @@ namespace MediaBrowser.Controller.MediaEncoding
else if (string.Equals(outputVideoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase))
{
if (!hasTextSubs)
{
{
filters.Add(string.Format(CultureInfo.InvariantCulture, "deinterlace_qsv"));
}
}
@ -2051,9 +2055,9 @@ namespace MediaBrowser.Controller.MediaEncoding
// Add software deinterlace filter before scaling filter
if (((state.DeInterlace("h264", true) || state.DeInterlace("h265", true) || state.DeInterlace("hevc", true))
&& !string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase)
&& !string.Equals(outputVideoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase))
|| (hasTextSubs && state.DeInterlace("h264", true) && string.Equals(outputVideoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase)))
&& !string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase)
&& !string.Equals(outputVideoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase))
|| (hasTextSubs && state.DeInterlace("h264", true) && string.Equals(outputVideoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase)))
{
var inputFramerate = videoStream?.RealFrameRate;