fix the UTF-16 error while burning ass/ssa subtitles

pull/2503/head
nyanmisaka 5 years ago
parent 0e9d9a7897
commit 0af353404c

@ -946,7 +946,7 @@ namespace MediaBrowser.Api.Playback.Hls
gopArg = string.Format(
CultureInfo.InvariantCulture,
" -g {0} -keyint_min {0} -sc_threshold 0",
state.SegmentLength * Math.Ceiling(Convert.ToDecimal(framerate))
Math.Ceiling(state.SegmentLength * framerate.Value)
);
}
@ -980,6 +980,8 @@ namespace MediaBrowser.Api.Playback.Hls
args += EncodingHelper.GetGraphicalSubtitleParam(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";

@ -730,6 +730,14 @@ 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;

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