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update interlaced detection

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This commit is contained in:
Luke Pulverenti
2016-01-14 12:11:29 -05:00
parent 0c2192e903
commit c8f65e7589
11 changed files with 90 additions and 42 deletions
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73
MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs
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@@ -258,17 +258,17 @@ namespace MediaBrowser.MediaEncoding.Encoder
var mediaInfo = new ProbeResultNormalizer(_logger, FileSystem).GetMediaInfo(result, videoType, isAudio, primaryPath, protocol);
//var videoStream = mediaInfo.MediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Video);
var videoStream = mediaInfo.MediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Video);
//if (videoStream != null)
//{
// var isInterlaced = await DetectInterlaced(mediaInfo, videoStream, inputPath, probeSizeArgument).ConfigureAwait(false);
if (videoStream != null)
{
var isInterlaced = await DetectInterlaced(mediaInfo, videoStream, inputPath, probeSizeArgument).ConfigureAwait(false);
// if (isInterlaced)
// {
// videoStream.IsInterlaced = true;
// }
//}
if (isInterlaced)
{
videoStream.IsInterlaced = true;
}
}
return mediaInfo;
}
@@ -292,19 +292,22 @@ namespace MediaBrowser.MediaEncoding.Encoder
return false;
}
var formats = (video.Container ?? string.Empty).Split(',').ToList();
// Take a shortcut and limit this to containers that are likely to have interlaced content
if (!formats.Contains("vob", StringComparer.OrdinalIgnoreCase) &&
!formats.Contains("m2ts", StringComparer.OrdinalIgnoreCase) &&
!formats.Contains("ts", StringComparer.OrdinalIgnoreCase) &&
!formats.Contains("mpegts", StringComparer.OrdinalIgnoreCase) &&
!formats.Contains("wtv", StringComparer.OrdinalIgnoreCase))
// If the video codec is not some form of mpeg, then take a shortcut and limit this to containers that are likely to have interlaced content
if ((videoStream.Codec ?? string.Empty).IndexOf("mpeg", StringComparison.OrdinalIgnoreCase) == -1)
{
return false;
var formats = (video.Container ?? string.Empty).Split(',').ToList();
if (!formats.Contains("vob", StringComparer.OrdinalIgnoreCase) &&
!formats.Contains("m2ts", StringComparer.OrdinalIgnoreCase) &&
!formats.Contains("ts", StringComparer.OrdinalIgnoreCase) &&
!formats.Contains("mpegts", StringComparer.OrdinalIgnoreCase) &&
!formats.Contains("wtv", StringComparer.OrdinalIgnoreCase))
{
return false;
}
}
var args = "{0} -i {1} -map 0:v:{2} -filter:v idet -frames:v 500 -an -f null /dev/null";
var args = "{0} -i {1} -map 0:v:{2} -an -filter:v idet -frames:v 500 -an -f null /dev/null";
var process = new Process
{
@@ -444,7 +447,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
return false;
}
if (((tff + bff) / total) >= .65)
if (((tff + bff) / total) >= .4)
{
return true;
}
@@ -469,29 +472,37 @@ namespace MediaBrowser.MediaEncoding.Encoder
/// </summary>
protected readonly CultureInfo UsCulture = new CultureInfo("en-US");
public Task<Stream> ExtractAudioImage(string path, CancellationToken cancellationToken)
public Task<Stream> ExtractAudioImage(string path, int? imageStreamIndex, CancellationToken cancellationToken)
{
return ExtractImage(new[] { path }, MediaProtocol.File, true, null, null, cancellationToken);
return ExtractImage(new[] { path }, imageStreamIndex, MediaProtocol.File, true, null, null, cancellationToken);
}
public Task<Stream> ExtractVideoImage(string[] inputFiles, MediaProtocol protocol, Video3DFormat? threedFormat,
TimeSpan? offset, CancellationToken cancellationToken)
{
return ExtractImage(inputFiles, protocol, false, threedFormat, offset, cancellationToken);
return ExtractImage(inputFiles, null, protocol, false, threedFormat, offset, cancellationToken);
}
private async Task<Stream> ExtractImage(string[] inputFiles, MediaProtocol protocol, bool isAudio,
private async Task<Stream> ExtractImage(string[] inputFiles, int? imageStreamIndex, MediaProtocol protocol, bool isAudio,
Video3DFormat? threedFormat, TimeSpan? offset, CancellationToken cancellationToken)
{
var resourcePool = isAudio ? _audioImageResourcePool : _videoImageResourcePool;
var inputArgument = GetInputArgument(inputFiles, protocol);
if (!isAudio)
if (isAudio)
{
//if (imageStreamIndex.HasValue && imageStreamIndex.Value > 0)
//{
// // It seems for audio files we need to subtract 1 (for the audio stream??)
// imageStreamIndex = imageStreamIndex.Value - 1;
//}
}
else
{
try
{
return await ExtractImageInternal(inputArgument, protocol, threedFormat, offset, true, resourcePool, cancellationToken).ConfigureAwait(false);
return await ExtractImageInternal(inputArgument, imageStreamIndex, protocol, threedFormat, offset, true, resourcePool, cancellationToken).ConfigureAwait(false);
}
catch (ArgumentException)
{
@@ -503,10 +514,10 @@ namespace MediaBrowser.MediaEncoding.Encoder
}
}
return await ExtractImageInternal(inputArgument, protocol, threedFormat, offset, false, resourcePool, cancellationToken).ConfigureAwait(false);
return await ExtractImageInternal(inputArgument, imageStreamIndex, protocol, threedFormat, offset, false, resourcePool, cancellationToken).ConfigureAwait(false);
}
private async Task<Stream> ExtractImageInternal(string inputPath, MediaProtocol protocol, Video3DFormat? threedFormat, TimeSpan? offset, bool useIFrame, SemaphoreSlim resourcePool, CancellationToken cancellationToken)
private async Task<Stream> ExtractImageInternal(string inputPath, int? imageStreamIndex, MediaProtocol protocol, Video3DFormat? threedFormat, TimeSpan? offset, bool useIFrame, SemaphoreSlim resourcePool, CancellationToken cancellationToken)
{
if (string.IsNullOrEmpty(inputPath))
{
@@ -540,9 +551,11 @@ namespace MediaBrowser.MediaEncoding.Encoder
}
}
var mapArg = imageStreamIndex.HasValue ? (" -map 0:v:" + imageStreamIndex.Value.ToString(CultureInfo.InvariantCulture)) : string.Empty;
// Use ffmpeg to sample 100 (we can drop this if required using thumbnail=50 for 50 frames) frames and pick the best thumbnail. Have a fall back just in case.
var args = useIFrame ? string.Format("-i {0} -threads 1 -v quiet -vframes 1 -vf \"{2},thumbnail=30\" -f image2 \"{1}\"", inputPath, "-", vf) :
string.Format("-i {0} -threads 1 -v quiet -vframes 1 -vf \"{2}\" -f image2 \"{1}\"", inputPath, "-", vf);
var args = useIFrame ? string.Format("-i {0}{3} -threads 1 -v quiet -vframes 1 -vf \"{2},thumbnail=30\" -f image2 \"{1}\"", inputPath, "-", vf, mapArg) :
string.Format("-i {0}{3} -threads 1 -v quiet -vframes 1 -vf \"{2}\" -f image2 \"{1}\"", inputPath, "-", vf, mapArg);
var probeSize = GetProbeSizeArgument(new[] { inputPath }, protocol);