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Merge pull request #2503 from nyanmisaka/vaapi 

Fix various bugs in HWA subtitle burn-in
This commit is contained in:
Vasily 2020-03-31 23:19:44 +03:00 committed by GitHub
parent 314129c803 95c5c08610
commit 9aefb41512
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 227 additions and 132 deletions
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54
MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs
View File

@ -927,61 +927,69 @@ namespace MediaBrowser.Api.Playback.Hls
}
else
{
var gopArg = string.Empty;
var keyFrameArg = string.Format(
CultureInfo.InvariantCulture,
" -force_key_frames:0 \"expr:gte(t,{0}+n_forced*{1})\"",
GetStartNumber(state) * state.SegmentLength,
state.SegmentLength);
if (state.TargetFramerate.HasValue)
var framerate = state.VideoStream?.RealFrameRate;
if (framerate != null && framerate.HasValue)
{
// This is to make sure keyframe interval is limited to our segment,
// 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.
keyFrameArg += string.Format(
// 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}",
(int)(state.SegmentLength * state.TargetFramerate)
" -g {0} -keyint_min {0} -sc_threshold 0",
Math.Ceiling(state.SegmentLength * framerate.Value)
);
}
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
args += " " + EncodingHelper.GetVideoQualityParam(state, codec, encodingOptions, GetDefaultEncoderPreset());
// Unable to force key frames to h264_qsv transcode
if (string.Equals(codec, "h264_qsv", StringComparison.OrdinalIgnoreCase))
// Unable to force key frames using these hw encoders, set key frames by GOP
if (string.Equals(codec, "h264_qsv", StringComparison.OrdinalIgnoreCase)
|| string.Equals(codec, "h264_nvenc", StringComparison.OrdinalIgnoreCase)
|| string.Equals(codec, "h264_amf", StringComparison.OrdinalIgnoreCase))
{
Logger.LogInformation("Bug Workaround: Disabling force_key_frames for h264_qsv");
args += " " + gopArg;
}
else
{
args += " " + keyFrameArg;
args += " " + keyFrameArg + gopArg;
}
//args += " -mixed-refs 0 -refs 3 -x264opts b_pyramid=0:weightb=0:weightp=0";
// Add resolution params, if specified
if (!hasGraphicalSubs)
{
args += EncodingHelper.GetOutputSizeParam(state, encodingOptions, codec, true);
}
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
// This is for internal graphical subs
// 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.
if (!(state.SubtitleStream != null && state.SubtitleStream.IsExternal && !state.SubtitleStream.IsTextSubtitleStream))
{
args += " -start_at_zero";
}
//args += " -flags -global_header";
}
if (args.IndexOf("-copyts", StringComparison.OrdinalIgnoreCase) == -1)
{
args += " -copyts";
}
if (!string.IsNullOrEmpty(state.OutputVideoSync))
{
args += " -vsync " + state.OutputVideoSync;
@ -1025,7 +1033,7 @@ namespace MediaBrowser.Api.Playback.Hls
}
return string.Format(
"{0} {1} -map_metadata -1 -map_chapters -1 -threads {2} {3} {4} {5} -f hls -max_delay 5000000 -avoid_negative_ts disabled -start_at_zero -hls_time {6} -individual_header_trailer 0 -hls_segment_type {7} -start_number {8} -hls_segment_filename \"{9}\" -hls_playlist_type vod -hls_list_size 0 -y \"{10}\"",
"{0} {1} -map_metadata -1 -map_chapters -1 -threads {2} {3} {4} {5} -copyts -avoid_negative_ts disabled -f hls -max_delay 5000000 -hls_time {6} -individual_header_trailer 0 -hls_segment_type {7} -start_number {8} -hls_segment_filename \"{9}\" -hls_playlist_type vod -hls_list_size 0 -y \"{10}\"",
inputModifier,
EncodingHelper.GetInputArgument(state, encodingOptions),
threads,

297
MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
View File

@ -460,16 +460,7 @@ namespace MediaBrowser.Controller.MediaEncoding
if (state.IsVideoRequest
&& string.Equals(encodingOptions.HardwareAccelerationType, "vaapi", StringComparison.OrdinalIgnoreCase))
{
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
var hwOutputFormat = "vaapi";
if (hasGraphicalSubs)
{
hwOutputFormat = "yuv420p";
}
arg.Append("-hwaccel vaapi -hwaccel_output_format ")
.Append(hwOutputFormat)
arg.Append("-hwaccel vaapi -hwaccel_output_format vaapi")
.Append(" -vaapi_device ")
.Append(encodingOptions.VaapiDevice)
.Append(' ');
@ -480,20 +471,26 @@ namespace MediaBrowser.Controller.MediaEncoding
{
var videoDecoder = GetHardwareAcceleratedVideoDecoder(state, encodingOptions);
var outputVideoCodec = GetVideoEncoder(state, encodingOptions);
var hasTextSubs = state.SubtitleStream != null && state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
if (encodingOptions.EnableHardwareEncoding && outputVideoCodec.Contains("qsv", StringComparison.OrdinalIgnoreCase))
if (!hasTextSubs)
{
if (!string.IsNullOrEmpty(videoDecoder) && videoDecoder.Contains("qsv", StringComparison.OrdinalIgnoreCase))
// While using QSV encoder
if ((outputVideoCodec ?? string.Empty).IndexOf("qsv", StringComparison.OrdinalIgnoreCase) != -1)
{
arg.Append("-hwaccel qsv ");
}
else
{
arg.Append("-init_hw_device qsv=hw -filter_hw_device hw ");
// While using QSV decoder
if ((videoDecoder ?? string.Empty).IndexOf("qsv", StringComparison.OrdinalIgnoreCase) != -1)
{
arg.Append("-hwaccel qsv ");
}
// While using SW decoder
else
{
arg.Append("-init_hw_device qsv=hw -filter_hw_device hw ");
}
}
}
arg.Append(videoDecoder + " ");
}
arg.Append("-i ")
@ -503,17 +500,6 @@ namespace MediaBrowser.Controller.MediaEncoding
&& state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode
&& state.SubtitleStream.IsExternal && !state.SubtitleStream.IsTextSubtitleStream)
{
if (state.VideoStream != null && state.VideoStream.Width.HasValue)
{
// This is hacky but not sure how to get the exact subtitle resolution
int height = Convert.ToInt32(state.VideoStream.Width.Value / 16.0 * 9.0);
arg.Append(" -canvas_size ")
.Append(state.VideoStream.Width.Value.ToString(CultureInfo.InvariantCulture))
.Append(':')
.Append(height.ToString(CultureInfo.InvariantCulture));
}
var subtitlePath = state.SubtitleStream.Path;
if (string.Equals(Path.GetExtension(subtitlePath), ".sub", StringComparison.OrdinalIgnoreCase))
@ -1546,9 +1532,12 @@ namespace MediaBrowser.Controller.MediaEncoding
}
/// <summary>
/// Gets the internal graphical subtitle param.
/// Gets the graphical subtitle param.
/// </summary>
public string GetGraphicalSubtitleParam(EncodingJobInfo state, EncodingOptions options, string outputVideoCodec)
public string GetGraphicalSubtitleParam(
EncodingJobInfo state,
EncodingOptions options,
string outputVideoCodec)
{
var outputSizeParam = string.Empty;
@ -1562,53 +1551,77 @@ namespace MediaBrowser.Controller.MediaEncoding
{
outputSizeParam = GetOutputSizeParam(state, options, outputVideoCodec).TrimEnd('"');
if (string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
var index = outputSizeParam.IndexOf("hwdownload", StringComparison.OrdinalIgnoreCase);
if (index != -1)
{
var index = outputSizeParam.IndexOf("format", StringComparison.OrdinalIgnoreCase);
if (index != -1)
{
outputSizeParam = "," + outputSizeParam.Substring(index);
}
outputSizeParam = "," + outputSizeParam.Substring(index);
}
else
{
var index = outputSizeParam.IndexOf("scale", StringComparison.OrdinalIgnoreCase);
index = outputSizeParam.IndexOf("format", StringComparison.OrdinalIgnoreCase);
if (index != -1)
{
outputSizeParam = "," + outputSizeParam.Substring(index);
}
}
}
if (string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase)
&& outputSizeParam.Length == 0)
{
outputSizeParam = ",format=nv12|vaapi,hwupload";
// Add parameters to use VAAPI with burn-in subttiles (GH issue #642)
if (state.SubtitleStream != null
&& state.SubtitleStream.IsTextSubtitleStream
&& state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode) {
outputSizeParam += ",hwmap=mode=read+write+direct";
else
{
index = outputSizeParam.IndexOf("yadif", StringComparison.OrdinalIgnoreCase);
if (index != -1)
{
outputSizeParam = "," + outputSizeParam.Substring(index);
}
else
{
index = outputSizeParam.IndexOf("scale", StringComparison.OrdinalIgnoreCase);
if (index != -1)
{
outputSizeParam = "," + outputSizeParam.Substring(index);
}
}
}
}
}
var videoSizeParam = string.Empty;
var videoDecoder = GetHardwareAcceleratedVideoDecoder(state, options);
// 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);
//For QSV, feed it into hardware encoder now
// For QSV, feed it into hardware encoder now
if (string.Equals(outputVideoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase))
{
videoSizeParam += ",hwupload=extra_hw_frames=64";
}
// 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)
{
var videoStream = state.VideoStream;
var inputWidth = videoStream?.Width;
var inputHeight = videoStream?.Height;
var (width, height) = GetFixedOutputSize(inputWidth, inputHeight, request.Width, request.Height, request.MaxWidth, request.MaxHeight);
if (width.HasValue && height.HasValue)
{
videoSizeParam = string.Format(
CultureInfo.InvariantCulture,
"scale={0}:{1}:force_original_aspect_ratio=decrease",
width.Value,
height.Value);
}
}
}
var mapPrefix = state.SubtitleStream.IsExternal ?
@ -1619,12 +1632,34 @@ namespace MediaBrowser.Controller.MediaEncoding
? 0
: state.SubtitleStream.Index;
var videoDecoder = GetHardwareAcceleratedVideoDecoder(state, options);
// Setup default filtergraph utilizing FFMpeg overlay() and FFMpeg scale() (see the return of this function for index reference)
var retStr = " -filter_complex \"[{0}:{1}]{4}[sub];[0:{2}][sub]overlay{3}\"";
if (string.Equals(outputVideoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase))
// When the input may or may not be hardware VAAPI decodable
if (string.Equals(options.HardwareAccelerationType, "vaapi", StringComparison.OrdinalIgnoreCase) && options.EnableHardwareEncoding)
{
/*
[base]: HW scaling video to OutputSize
[sub]: SW scaling subtitle to FixedOutputSize
[base][sub]: SW overlay
*/
outputSizeParam = outputSizeParam.TrimStart(',');
retStr = " -filter_complex \"[{0}:{1}]{4}[sub];[0:{2}]{3},hwdownload[base];[base][sub]overlay,format=nv12,hwupload\"";
}
// If we're hardware VAAPI decoding and software encoding, download frames from the decoder first
else if (string.Equals(options.HardwareAccelerationType, "vaapi", StringComparison.OrdinalIgnoreCase) && !options.EnableHardwareEncoding)
{
/*
[base]: SW scaling video to OutputSize
[sub]: SW scaling subtitle to FixedOutputSize
[base][sub]: SW overlay
*/
outputSizeParam = outputSizeParam.TrimStart(',');
retStr = " -filter_complex \"[{0}:{1}]{4}[sub];[0:{2}]{3}[base];[base][sub]overlay\"";
}
else if (string.Equals(outputVideoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase))
{
/*
QSV in FFMpeg can now setup hardware overlay for transcodes.
@ -1688,7 +1723,8 @@ namespace MediaBrowser.Controller.MediaEncoding
return (Convert.ToInt32(outputWidth), Convert.ToInt32(outputHeight));
}
public List<string> GetScalingFilters(int? videoWidth,
public List<string> GetScalingFilters(EncodingJobInfo state,
int? videoWidth,
int? videoHeight,
Video3DFormat? threedFormat,
string videoDecoder,
@ -1707,7 +1743,9 @@ namespace MediaBrowser.Controller.MediaEncoding
requestedMaxWidth,
requestedMaxHeight);
if ((string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase) || string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase))
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)
&& width.HasValue
&& height.HasValue)
{
@ -1737,7 +1775,7 @@ namespace MediaBrowser.Controller.MediaEncoding
filters.Add(string.Format(CultureInfo.InvariantCulture, "scale_{0}=format=nv12", vaapi_or_qsv));
}
}
else if ((videoDecoder ?? string.Empty).IndexOf("_cuvid", StringComparison.OrdinalIgnoreCase) != -1
else if ((videoDecoder ?? string.Empty).IndexOf("cuvid", StringComparison.OrdinalIgnoreCase) != -1
&& width.HasValue
&& height.HasValue)
{
@ -1941,8 +1979,7 @@ namespace MediaBrowser.Controller.MediaEncoding
public string GetOutputSizeParam(
EncodingJobInfo state,
EncodingOptions options,
string outputVideoCodec,
bool allowTimeStampCopy = true)
string outputVideoCodec)
{
// http://sonnati.wordpress.com/2012/10/19/ffmpeg-the-swiss-army-knife-of-internet-streaming-part-vi/
@ -1951,42 +1988,56 @@ namespace MediaBrowser.Controller.MediaEncoding
var videoStream = state.VideoStream;
var filters = new List<string>();
// If we're hardware VAAPI decoding and software encoding, download frames from the decoder first
var hwType = options.HardwareAccelerationType ?? string.Empty;
if (string.Equals(hwType, "vaapi", StringComparison.OrdinalIgnoreCase) && !options.EnableHardwareEncoding )
{
filters.Add("hwdownload");
var videoDecoder = GetHardwareAcceleratedVideoDecoder(state, options);
var inputWidth = videoStream?.Width;
var inputHeight = videoStream?.Height;
var threeDFormat = state.MediaSource.Video3DFormat;
// If transcoding from 10 bit, transform colour spaces too
if (!string.IsNullOrEmpty(videoStream.PixelFormat)
&& videoStream.PixelFormat.IndexOf("p10", StringComparison.OrdinalIgnoreCase) != -1
&& string.Equals(outputVideoCodec, "libx264", StringComparison.OrdinalIgnoreCase))
{
filters.Add("format=p010le");
filters.Add("format=nv12");
}
else
{
filters.Add("format=nv12");
}
}
var hasTextSubs = state.SubtitleStream != null && state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
if (string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
// When the input may or may not be hardware VAAPI decodable
if (string.Equals(options.HardwareAccelerationType, "vaapi", StringComparison.OrdinalIgnoreCase) && options.EnableHardwareEncoding)
{
filters.Add("format=nv12|vaapi");
filters.Add("hwupload");
}
var videoDecoder = GetHardwareAcceleratedVideoDecoder(state, options);
// If we are software decoding, and hardware encoding
if (string.Equals(outputVideoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase)
&& (string.IsNullOrEmpty(videoDecoder) || !videoDecoder.Contains("qsv", StringComparison.OrdinalIgnoreCase)))
// When the input may or may not be hardware QSV decodable
else if (string.Equals(options.HardwareAccelerationType, "qsv", StringComparison.OrdinalIgnoreCase) && options.EnableHardwareEncoding)
{
filters.Add("format=nv12|qsv");
filters.Add("hwupload=extra_hw_frames=64");
if (!hasTextSubs)
{
filters.Add("format=nv12|qsv");
filters.Add("hwupload=extra_hw_frames=64");
}
}
// If we're hardware VAAPI decoding and software encoding, download frames from the decoder first
else if (string.Equals(options.HardwareAccelerationType, "vaapi", StringComparison.OrdinalIgnoreCase) && !options.EnableHardwareEncoding)
{
var codec = videoStream.Codec.ToLowerInvariant();
var pixelFormat = videoStream.PixelFormat.ToLowerInvariant();
// Assert 10-bit hardware VAAPI decodable
if ((pixelFormat ?? string.Empty).IndexOf("p10", StringComparison.OrdinalIgnoreCase) != -1
&& (string.Equals(codec, "hevc", StringComparison.OrdinalIgnoreCase)
|| string.Equals(codec, "h265", StringComparison.OrdinalIgnoreCase)
|| string.Equals(codec, "vp9", StringComparison.OrdinalIgnoreCase)))
{
filters.Add("hwdownload");
filters.Add("format=p010le");
filters.Add("format=nv12");
}
// Assert 8-bit hardware VAAPI decodable
else if ((pixelFormat ?? string.Empty).IndexOf("p10", StringComparison.OrdinalIgnoreCase) == -1)
{
filters.Add("hwdownload");
filters.Add("format=nv12");
}
}
// Add hardware deinterlace filter before scaling filter
if (state.DeInterlace("h264", true))
{
if (string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
@ -1995,12 +2046,18 @@ namespace MediaBrowser.Controller.MediaEncoding
}
else if (string.Equals(outputVideoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase))
{
filters.Add(string.Format(CultureInfo.InvariantCulture, "deinterlace_qsv"));
if (!hasTextSubs)
{
filters.Add(string.Format(CultureInfo.InvariantCulture, "deinterlace_qsv"));
}
}
}
if ((state.DeInterlace("h264", true) || state.DeInterlace("h265", true) || state.DeInterlace("hevc", true))
&& !string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
// 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)))
{
var inputFramerate = videoStream?.RealFrameRate;
@ -2015,11 +2072,21 @@ namespace MediaBrowser.Controller.MediaEncoding
}
}
var inputWidth = videoStream?.Width;
var inputHeight = videoStream?.Height;
var threeDFormat = state.MediaSource.Video3DFormat;
// Add scaling filter: scale_*=format=nv12 or scale_*=w=*:h=*:format=nv12 or scale=expr
filters.AddRange(GetScalingFilters(state, inputWidth, inputHeight, threeDFormat, videoDecoder, outputVideoCodec, request.Width, request.Height, request.MaxWidth, request.MaxHeight));
filters.AddRange(GetScalingFilters(inputWidth, inputHeight, threeDFormat, videoDecoder, outputVideoCodec, request.Width, request.Height, request.MaxWidth, request.MaxHeight));
// Add parameters to use VAAPI with burn-in text subttiles (GH issue #642)
if (string.Equals(options.HardwareAccelerationType, "vaapi", StringComparison.OrdinalIgnoreCase) && options.EnableHardwareEncoding)
{
if (state.SubtitleStream != null
&& state.SubtitleStream.IsTextSubtitleStream
&& state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode)
{
// Test passed on Intel and AMD gfx
filters.Add("hwmap=mode=read+write");
filters.Add("format=nv12");
}
}
var output = string.Empty;
@ -2037,11 +2104,6 @@ namespace MediaBrowser.Controller.MediaEncoding
{
filters.Add("hwmap");
}
if (allowTimeStampCopy)
{
output += " -copyts";
}
}
if (filters.Count > 0)
@ -2218,7 +2280,7 @@ namespace MediaBrowser.Controller.MediaEncoding
{
inputModifier += " " + videoDecoder;
if ((videoDecoder ?? string.Empty).IndexOf("_cuvid", StringComparison.OrdinalIgnoreCase) != -1)
if ((videoDecoder ?? string.Empty).IndexOf("cuvid", StringComparison.OrdinalIgnoreCase) != -1)
{
var videoStream = state.VideoStream;
var inputWidth = videoStream?.Width;
@ -2227,7 +2289,7 @@ namespace MediaBrowser.Controller.MediaEncoding
var (width, height) = GetFixedOutputSize(inputWidth, inputHeight, request.Width, request.Height, request.MaxWidth, request.MaxHeight);
if ((videoDecoder ?? string.Empty).IndexOf("_cuvid", StringComparison.OrdinalIgnoreCase) != -1
if ((videoDecoder ?? string.Empty).IndexOf("cuvid", StringComparison.OrdinalIgnoreCase) != -1
&& width.HasValue
&& height.HasValue)
{
@ -2525,6 +2587,12 @@ namespace MediaBrowser.Controller.MediaEncoding
case "h264":
if (_mediaEncoder.SupportsDecoder("h264_cuvid") && encodingOptions.HardwareDecodingCodecs.Contains("h264", StringComparer.OrdinalIgnoreCase))
{
// cuvid decoder does not support 10-bit input
if ((videoStream.BitDepth ?? 8) > 8)
{
encodingOptions.HardwareDecodingCodecs = Array.Empty<string>();
return null;
}
return "-c:v h264_cuvid ";
}
break;
@ -2772,14 +2840,27 @@ namespace MediaBrowser.Controller.MediaEncoding
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
var hasCopyTs = false;
// Add resolution params, if specified
if (!hasGraphicalSubs)
{
var outputSizeParam = GetOutputSizeParam(state, encodingOptions, videoCodec);
args += outputSizeParam;
hasCopyTs = outputSizeParam.IndexOf("copyts", StringComparison.OrdinalIgnoreCase) != -1;
}
// This is for graphical subs
if (hasGraphicalSubs)
{
var graphicalSubtitleParam = GetGraphicalSubtitleParam(state, encodingOptions, videoCodec);
args += graphicalSubtitleParam;
hasCopyTs = graphicalSubtitleParam.IndexOf("copyts", StringComparison.OrdinalIgnoreCase) != -1;
}
if (state.RunTimeTicks.HasValue && state.BaseRequest.CopyTimestamps)
{
if (!hasCopyTs)
@ -2787,13 +2868,12 @@ namespace MediaBrowser.Controller.MediaEncoding
args += " -copyts";
}
args += " -avoid_negative_ts disabled -start_at_zero";
}
args += " -avoid_negative_ts disabled";
// This is for internal graphical subs
if (hasGraphicalSubs)
{
args += GetGraphicalSubtitleParam(state, encodingOptions, videoCodec);
if (!(state.SubtitleStream != null && state.SubtitleStream.IsExternal && !state.SubtitleStream.IsTextSubtitleStream))
{
args += " -start_at_zero";
}
}
var qualityParam = GetVideoQualityParam(state, videoCodec, encodingOptions, defaultPreset);
@ -2899,6 +2979,5 @@ namespace MediaBrowser.Controller.MediaEncoding
string.Empty,
string.Empty).Trim();
}
}
}

8
MediaBrowser.MediaEncoding/Subtitles/SubtitleEncoder.cs
View File

@ -731,6 +731,14 @@ namespace MediaBrowser.MediaEncoding.Subtitles
{
var charset = CharsetDetector.DetectFromStream(stream).Detected?.EncodingName;
// UTF16 is automatically converted to UTF8 by FFmpeg, do not specify a character encoding
if ((path.EndsWith(".ass") || path.EndsWith(".ssa"))
&& (string.Equals(charset, "utf-16le", StringComparison.OrdinalIgnoreCase)
|| string.Equals(charset, "utf-16be", StringComparison.OrdinalIgnoreCase)))
{
charset = "";
}
_logger.LogDebug("charset {0} detected for {Path}", charset ?? "null", path);
return charset;