MSL_DK 35 Posted January 15, 2014 Posted January 15, 2014 What can be the reason for "Chapter Image Extraction" fails in some cases? eg \What Maisie Knew\What Maisie Knew.mkv Format : Matroska Format version : Version 4 / Version 2 File size : 14.7 GiB Duration : 1h 38mn Overall bit rate mode : Variable Overall bit rate : 21.3 Mbps Movie name : What Maisie Knew Encoded date : UTC 2014-01-08 23:18:57 Writing application : mkvmerge v6.6.0 ('The Edge Of The In Between') built on Dec 1 2013 17:55:00 Writing library : libebml v1.3.0 + libmatroska v1.4.1 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.1 Format settings, CABAC : Yes Format settings, ReFrames : 2 frames Codec ID : V_MPEG4/ISO/AVC Duration : 1h 38mn Bit rate mode : Variable Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 23.976 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Default : Yes Forced : No Audio ID : 2 Format : TrueHD Codec ID : A_TRUEHD Duration : 1h 38mn Bit rate mode : Variable Maximum bit rate : 2 070 Kbps Channel(s) : 6 channels Channel positions : Front: L C R, Side: L R, LFE Sampling rate : 48.0 KHz Compression mode : Lossless Language : English Default : Yes Forced : No Text ID : 3 Format : PGS Codec ID : S_HDMV/PGS Codec ID/Info : The same subtitle format used on BDs/HD-DVDs Language : Danish Default : Yes Forced : No Menu 00:00:00.000 : en:Chapter 1 00:08:47.944 : en:Chapter 2 00:15:39.229 : en:Chapter 3 00:23:45.215 : en:Chapter 4 00:31:58.625 : en:Chapter 5 00:39:14.226 : en:Chapter 6 00:48:48.759 : en:Chapter 7 00:56:55.036 : en:Chapter 8 01:06:00.373 : en:Chapter 9 01:17:18.091 : en:Chapter 10 01:28:08.199 : en:Chapter 11 01:35:03.572 : en:Chapter 12 01:38:55.679 : en:Chapter 13
MSL_DK 35 Posted January 15, 2014 Author Posted January 15, 2014 Can I test with ffprobe? Will ffprobe return the error?
MSL_DK 35 Posted January 15, 2014 Author Posted January 15, 2014 (edited) I think it has something to do with the chapter position on the last chapter? movie length: 01:38:55.930 Chapter 13: 01:38:55.679 EDIT I thought this was the case, but from chapter two onwards failed to extract images from Sunshine. Data from ffprobe Metadata: title : Sunshine creation_time : 2011-10-07 10:34:11 Duration: 01:47:27.45, start: 0.000000, bitrate: 26160 Chapter #0.0: start 0.000000, end 247.330000 Metadata: title : Kapitel 1 Chapter #0.1: start 247.330000, end 490.573000 Metadata: title : Kapitel 2 Chapter #0.2: start 490.573000, end 761.260000 Metadata: title : Kapitel 3 Chapter #0.3: start 761.260000, end 1283.407000 Metadata: title : Kapitel 4 Chapter #0.4: start 1283.407000, end 1497.245000 Metadata: title : Kapitel 5 Chapter #0.5: start 1497.245000, end 2115.238000 Metadata: title : Kapitel 6 Chapter #0.6: start 2115.238000, end 2355.311000 Metadata: title : Kapitel 7 Chapter #0.7: start 2355.311000, end 2823.779000 Metadata: title : Kapitel 8 Chapter #0.8: start 2823.779000, end 3177.340000 Metadata: title : Kapitel 9 Chapter #0.9: start 3177.340000, end 3385.298000 Metadata: title : Kapitel 10 Chapter #0.10: start 3385.298000, end 3845.549000 Metadata: title : Kapitel 11 Chapter #0.11: start 3845.549000, end 3940.853000 Metadata: title : Kapitel 12 Chapter #0.12: start 3940.853000, end 4282.945000 Metadata: title : Kapitel 13 Chapter #0.13: start 4282.945000, end 4625.662000 Metadata: title : Kapitel 14 Chapter #0.14: start 4625.662000, end 5076.988000 Metadata: title : Kapitel 15 Chapter #0.15: start 5076.988000, end 5436.597000 Metadata: title : Kapitel 16 Chapter #0.16: start 5436.597000, end 5661.363000 Metadata: title : Kapitel 17 Chapter #0.17: start 5661.363000, end 5972.466000 Metadata: title : Kapitel 18 Chapter #0.18: start 5972.466000, end 6052.421000 Metadata: title : Kapitel 19 Chapter #0.19: start 6052.421000, end 6446.439000 Metadata: title : Kapitel 20 Chapter #0.20: start 6446.439000, end 6447.446000 Metadata: title : Kapitel 21 Edited January 15, 2014 by JLPFLD
MSL_DK 35 Posted January 15, 2014 Author Posted January 15, 2014 From the server log 2014-01-14 19:33:29.3423, Info, MediaEncoder, Killing ffmpeg process 2014-01-14 19:33:29.3735, Error, MediaEncoder, ffmpeg image extraction failed for file:"\\SERVER_1\Film_8\Sunshine\Sunshine.mkv" 2014-01-14 19:33:29.3735, Error, MediaEncoder, I-frame image extraction failed, will attempt standard way. Input: file:"\\SERVER_1\Film_8\Sunshine\Sunshine.mkv" 2014-01-14 19:33:39.4043, Info, MediaEncoder, Killing ffmpeg process 2014-01-14 19:33:39.4355, Error, MediaEncoder, ffmpeg image extraction failed for file:"\\SERVER_1\Film_8\Sunshine\Sunshine.mkv"
Solution Tikuf 663 Posted January 15, 2014 Solution Posted January 15, 2014 Likely means the decode time stamps are not quire right. generally if you run it though mkvmerge it will generally fix them. There are a few threads mentioning it. If we cannot seek the file we cannot extract the image. 1
MSL_DK 35 Posted January 15, 2014 Author Posted January 15, 2014 That's weird because every mkv is created through mkvmerge by myself ... But i give it a try. Thanks
Tikuf 663 Posted January 15, 2014 Posted January 15, 2014 If that is the case it may not be the issue then. But the most likely scenario is that for one reason or another we cannot seek the file. There are a few other things it may well be it could be that we are extracting black frames (do you see the default icon or a black frame)
MSL_DK 35 Posted January 15, 2014 Author Posted January 15, 2014 An default icon ... As for Sunshine it is asserted from Chapter 2 to 21
Tikuf 663 Posted January 15, 2014 Posted January 15, 2014 (edited) Ok try a remux with mkvmerge (if you want to) then delete %appdata%\MediaBrowser-Server\data\chapter-images\failures.txt and then run the chapter extraction task see how you fare. Incidentally the files listed in this text file generally have something nqr with them. Some are fine but the last chapter maybe too close to the end of the file or for one reason or another we cannot seek in them. Edited January 15, 2014 by Tikuf
Luke 38954 Posted January 15, 2014 Posted January 15, 2014 Ok try a remux with mkvmerge (if you want to) then delete %appdata%\MediaBrowser-Server\data\chapter-images\failures.txt and then run the chapter extraction task see how you fare. Incidentally the files listed in this text file generally have something nqr with them. Some are fine but the last chapter maybe too close to the end of the file or for one reason or another we cannot seek in them. you don't need to delete the file.
MSL_DK 35 Posted January 15, 2014 Author Posted January 15, 2014 Ok try a remux with mkvmerge (if you want to) then delete %appdata%\MediaBrowser-Server\data\chapter-images\failures.txt and then run the chapter extraction task see how you fare. Incidentally the files listed in this text file generally have something nqr with them. Some are fine but the last chapter maybe too close to the end of the file or for one reason or another we cannot seek in them. It's weird because all my movies are muxed by myself, but after remux through mkvmerge problem is solved. Thanks
uspider7 17 Posted February 3, 2014 Posted February 3, 2014 you don't need to delete the file. For it to work for me, I had to delete the file otherwise "Chapter image extraction" would not work, If I left the file there (has about 13 entries) the process would take 3 seconds to complete and it wouldn't do anything (no errors in the log window), but after deleting the file it would start creating chapters (for about 5min) until it filled up the failure.txt to about 13 entries again. I also tried mkvmerge on a few of the damaged files just to see if it would continue processing once it was fixed, but it didn't, the process just completed in 3 seconds again, but after deleting the failure.txt it did process, and the files that I ran through mkvmerge didn't show up on the failed list. I'm on the lastest dev build.
Ghostm 74 Posted February 20, 2014 Posted February 20, 2014 That's weird because every mkv is created through mkvmerge by myself ... But i give it a try. Thanks I noticed this as well, a few of my files remuxed in mkvmerge already it could not extract images from, yet when i ran it through a newer version of mkvmerge it worked fine. The only thing in common it seemed was those files were remuxed with an older version of mkvmerge and mb3 just would not exctract those images.
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