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Extract external subs from container before determining character set

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pull/8182/head
Shadowghost 3 years ago
parent f9dffa767f
commit feb035b9e0
3 changed files with 59 additions and 50 deletions
Show Stats Download Patch File Download Diff File

7
MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
Unescape View File

@ -1145,15 +1145,14 @@ namespace MediaBrowser.Controller.MediaEncoding
if (state.SubtitleStream.IsExternal)
{
var subtitlePath = state.SubtitleStream.Path;
var charsetParam = string.Empty;
if (!string.IsNullOrEmpty(state.SubtitleStream.Language))
{
var charenc = _subtitleEncoder.GetSubtitleFileCharacterSet(
subtitlePath,
state.SubtitleStream,
state.SubtitleStream.Language,
state.MediaSource.Protocol,
state.MediaSource,
CancellationToken.None).GetAwaiter().GetResult();
if (!string.IsNullOrEmpty(charenc))
@ -1166,7 +1165,7 @@ namespace MediaBrowser.Controller.MediaEncoding
return string.Format(
CultureInfo.InvariantCulture,
"subtitles=f='{0}'{1}{2}{3}{4}{5}",
_mediaEncoder.EscapeSubtitleFilterPath(subtitlePath),
_mediaEncoder.EscapeSubtitleFilterPath(state.SubtitleStream.Path),
charsetParam,
alphaParam,
sub2videoParam,

9
MediaBrowser.Controller/MediaEncoding/ISubtitleEncoder.cs
Unescape View File

@ -6,7 +6,8 @@ using System.IO;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Model.MediaInfo;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
namespace MediaBrowser.Controller.MediaEncoding
{
@ -37,11 +38,11 @@ namespace MediaBrowser.Controller.MediaEncoding
/// <summary>
/// Gets the subtitle language encoding parameter.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="subtitleStream">The subtitle stream.</param>
/// <param name="language">The language.</param>
/// <param name="protocol">The protocol.</param>
/// <param name="mediaSource">The media source.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>System.String.</returns>
Task<string> GetSubtitleFileCharacterSet(string path, string language, MediaProtocol protocol, CancellationToken cancellationToken);
Task<string> GetSubtitleFileCharacterSet(MediaStream subtitleStream, string language, MediaSourceInfo mediaSource, CancellationToken cancellationToken);
}
}

31
MediaBrowser.MediaEncoding/Subtitles/SubtitleEncoder.cs
Unescape View File

@ -238,7 +238,7 @@ namespace MediaBrowser.MediaEncoding.Subtitles
// Convert
var outputPath = GetSubtitleCachePath(mediaSource, subtitleStream.Index, ".srt");
await ConvertTextSubtitleToSrt(subtitleStream.Path, subtitleStream.Language, mediaSource, outputPath, cancellationToken).ConfigureAwait(false);
await ConvertTextSubtitleToSrt(subtitleStream, mediaSource, outputPath, cancellationToken).ConfigureAwait(false);
return new SubtitleInfo(outputPath, MediaProtocol.File, "srt", true);
}
@ -351,13 +351,12 @@ namespace MediaBrowser.MediaEncoding.Subtitles
/// <summary>
/// Converts the text subtitle to SRT.
/// </summary>
/// <param name="inputPath">The input path.</param>
/// <param name="language">The language.</param>
/// <param name="subtitleStream">The subtitle stream.</param>
/// <param name="mediaSource">The input mediaSource.</param>
/// <param name="outputPath">The output path.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private async Task ConvertTextSubtitleToSrt(string inputPath, string language, MediaSourceInfo mediaSource, string outputPath, CancellationToken cancellationToken)
private async Task ConvertTextSubtitleToSrt(MediaStream subtitleStream, MediaSourceInfo mediaSource, string outputPath, CancellationToken cancellationToken)
{
var semaphore = GetLock(outputPath);
@ -367,7 +366,7 @@ namespace MediaBrowser.MediaEncoding.Subtitles
{
if (!File.Exists(outputPath))
{
await ConvertTextSubtitleToSrtInternal(inputPath, language, mediaSource, outputPath, cancellationToken).ConfigureAwait(false);
await ConvertTextSubtitleToSrtInternal(subtitleStream, mediaSource, outputPath, cancellationToken).ConfigureAwait(false);
}
}
finally
@ -379,8 +378,7 @@ namespace MediaBrowser.MediaEncoding.Subtitles
/// <summary>
/// Converts the text subtitle to SRT internal.
/// </summary>
/// <param name="inputPath">The input path.</param>
/// <param name="language">The language.</param>
/// <param name="subtitleStream">The subtitle stream.</param>
/// <param name="mediaSource">The input mediaSource.</param>
/// <param name="outputPath">The output path.</param>
/// <param name="cancellationToken">The cancellation token.</param>
@ -388,8 +386,9 @@ namespace MediaBrowser.MediaEncoding.Subtitles
/// <exception cref="ArgumentNullException">
/// The <c>inputPath</c> or <c>outputPath</c> is <c>null</c>.
/// </exception>
private async Task ConvertTextSubtitleToSrtInternal(string inputPath, string language, MediaSourceInfo mediaSource, string outputPath, CancellationToken cancellationToken)
private async Task ConvertTextSubtitleToSrtInternal(MediaStream subtitleStream, MediaSourceInfo mediaSource, string outputPath, CancellationToken cancellationToken)
{
var inputPath = subtitleStream.Path;
if (string.IsNullOrEmpty(inputPath))
{
throw new ArgumentNullException(nameof(inputPath));
@ -402,7 +401,7 @@ namespace MediaBrowser.MediaEncoding.Subtitles
Directory.CreateDirectory(Path.GetDirectoryName(outputPath) ?? throw new ArgumentException($"Provided path ({outputPath}) is not valid.", nameof(outputPath)));
var encodingParam = await GetSubtitleFileCharacterSet(inputPath, language, mediaSource.Protocol, cancellationToken).ConfigureAwait(false);
var encodingParam = await GetSubtitleFileCharacterSet(subtitleStream, subtitleStream.Language, mediaSource, cancellationToken).ConfigureAwait(false);
// FFmpeg automatically convert character encoding when it is UTF-16
// If we specify character encoding, it rejects with "do not specify a character encoding" and "Unable to recode subtitle event"
@ -729,9 +728,19 @@ namespace MediaBrowser.MediaEncoding.Subtitles
}
/// <inheritdoc />
public async Task<string> GetSubtitleFileCharacterSet(string path, string language, MediaProtocol protocol, CancellationToken cancellationToken)
public async Task<string> GetSubtitleFileCharacterSet(MediaStream subtitleStream, string language, MediaSourceInfo mediaSource, CancellationToken cancellationToken)
{
var subtitleCodec = subtitleStream.Codec;
var path = subtitleStream.Path;
if (path.EndsWith(".mks", StringComparison.OrdinalIgnoreCase))
{
using (var stream = await GetStream(path, protocol, cancellationToken).ConfigureAwait(false))
path = GetSubtitleCachePath(mediaSource, subtitleStream.Index, "." + subtitleCodec);
await ExtractTextSubtitle(mediaSource, subtitleStream, subtitleCodec, path, cancellationToken)
.ConfigureAwait(false);
}
using (var stream = await GetStream(path, mediaSource.Protocol, cancellationToken).ConfigureAwait(false))
{
var charset = CharsetDetector.DetectFromStream(stream).Detected?.EncodingName ?? string.Empty;

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