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Don't re-encode subtitle: ass/ssa -> ass.

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This fix Issue #630 : "ASS encoder supports only one ASS rectangle field".
This commit is contained in:
abeloin 2014-01-25 15:27:31 -05:00
parent d0485685de
commit 41f7e2ab19
3 changed files with 19 additions and 6 deletions
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6
MediaBrowser.Api/Playback/BaseStreamingService.cs
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@ -536,7 +536,11 @@ namespace MediaBrowser.Api.Playback
Directory.CreateDirectory(parentPath); Directory.CreateDirectory(parentPath);
var task = MediaEncoder.ExtractTextSubtitle(inputPath, type, state.SubtitleStream.Index, path, CancellationToken.None); // Don't re-encode ass/ssa to ass because ffmpeg ass encoder fails if there's more than one ass rectangle. Affect Anime mostly.
// See https://lists.ffmpeg.org/pipermail/ffmpeg-cvslog/2013-April/063616.html
bool isAssSubtitle = string.Equals(state.SubtitleStream.Codec, "ass", StringComparison.OrdinalIgnoreCase) || string.Equals(state.SubtitleStream.Codec, "ssa", StringComparison.OrdinalIgnoreCase);
var task = MediaEncoder.ExtractTextSubtitle(inputPath, type, state.SubtitleStream.Index, isAssSubtitle, path, CancellationToken.None);
Task.WaitAll(task); Task.WaitAll(task);
} }

3
MediaBrowser.Controller/MediaInfo/IMediaEncoder.cs
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@ -41,10 +41,11 @@ namespace MediaBrowser.Controller.MediaInfo
/// <param name="inputFiles">The input files.</param> /// <param name="inputFiles">The input files.</param>
/// <param name="type">The type.</param> /// <param name="type">The type.</param>
/// <param name="subtitleStreamIndex">Index of the subtitle stream.</param> /// <param name="subtitleStreamIndex">Index of the subtitle stream.</param>
/// <param name="copySubtitleStream">if set to true, copy stream instead of converting.</param>
/// <param name="outputPath">The output path.</param> /// <param name="outputPath">The output path.</param>
/// <param name="cancellationToken">The cancellation token.</param> /// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns> /// <returns>Task.</returns>
Task ExtractTextSubtitle(string[] inputFiles, InputType type, int subtitleStreamIndex, string outputPath, CancellationToken cancellationToken); Task ExtractTextSubtitle(string[] inputFiles, InputType type, int subtitleStreamIndex, bool copySubtitleStream, string outputPath, CancellationToken cancellationToken);
/// <summary> /// <summary>
/// Converts the text subtitle to ass. /// Converts the text subtitle to ass.

16
MediaBrowser.Server.Implementations/MediaEncoder/MediaEncoder.cs
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@ -601,11 +601,12 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
/// <param name="inputFiles">The input files.</param> /// <param name="inputFiles">The input files.</param>
/// <param name="type">The type.</param> /// <param name="type">The type.</param>
/// <param name="subtitleStreamIndex">Index of the subtitle stream.</param> /// <param name="subtitleStreamIndex">Index of the subtitle stream.</param>
/// <param name="copySubtitleStream">if set to true, copy stream instead of converting.</param>
/// <param name="outputPath">The output path.</param> /// <param name="outputPath">The output path.</param>
/// <param name="cancellationToken">The cancellation token.</param> /// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns> /// <returns>Task.</returns>
/// <exception cref="System.ArgumentException">Must use inputPath list overload</exception> /// <exception cref="System.ArgumentException">Must use inputPath list overload</exception>
public async Task ExtractTextSubtitle(string[] inputFiles, InputType type, int subtitleStreamIndex, string outputPath, CancellationToken cancellationToken) public async Task ExtractTextSubtitle(string[] inputFiles, InputType type, int subtitleStreamIndex, bool copySubtitleStream, string outputPath, CancellationToken cancellationToken)
{ {
var semaphore = GetLock(outputPath); var semaphore = GetLock(outputPath);
@ -615,7 +616,7 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
{ {
if (!File.Exists(outputPath)) if (!File.Exists(outputPath))
{ {
await ExtractTextSubtitleInternal(GetInputArgument(inputFiles, type), subtitleStreamIndex, outputPath, cancellationToken).ConfigureAwait(false); await ExtractTextSubtitleInternal(GetInputArgument(inputFiles, type), subtitleStreamIndex, copySubtitleStream, outputPath, cancellationToken).ConfigureAwait(false);
} }
} }
finally finally
@ -629,6 +630,7 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
/// </summary> /// </summary>
/// <param name="inputPath">The input path.</param> /// <param name="inputPath">The input path.</param>
/// <param name="subtitleStreamIndex">Index of the subtitle stream.</param> /// <param name="subtitleStreamIndex">Index of the subtitle stream.</param>
/// <param name="copySubtitleStream">if set to true, copy stream instead of converting.</param>
/// <param name="outputPath">The output path.</param> /// <param name="outputPath">The output path.</param>
/// <param name="cancellationToken">The cancellation token.</param> /// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns> /// <returns>Task.</returns>
@ -638,7 +640,7 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
/// or /// or
/// cancellationToken</exception> /// cancellationToken</exception>
/// <exception cref="System.ApplicationException"></exception> /// <exception cref="System.ApplicationException"></exception>
private async Task ExtractTextSubtitleInternal(string inputPath, int subtitleStreamIndex, string outputPath, CancellationToken cancellationToken) private async Task ExtractTextSubtitleInternal(string inputPath, int subtitleStreamIndex, bool copySubtitleStream, string outputPath, CancellationToken cancellationToken)
{ {
if (string.IsNullOrEmpty(inputPath)) if (string.IsNullOrEmpty(inputPath))
{ {
@ -650,6 +652,12 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
throw new ArgumentNullException("outputPath"); throw new ArgumentNullException("outputPath");
} }
string processArgs = string.Format("-i {0} -map 0:{1} -an -vn -c:s ass \"{2}\"", inputPath, subtitleStreamIndex, outputPath);
if (copySubtitleStream)
{
processArgs = string.Format("-i {0} -map 0:{1} -an -vn -c:s copy \"{2}\"", inputPath, subtitleStreamIndex, outputPath);
}
var process = new Process var process = new Process
{ {
@ -662,7 +670,7 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
RedirectStandardError = true, RedirectStandardError = true,
FileName = FFMpegPath, FileName = FFMpegPath,
Arguments = string.Format("-i {0} -map 0:{1} -an -vn -c:s ass \"{2}\"", inputPath, subtitleStreamIndex, outputPath), Arguments = processArgs,
WindowStyle = ProcessWindowStyle.Hidden, WindowStyle = ProcessWindowStyle.Hidden,
ErrorDialog = false ErrorDialog = false
} }