A few seconds - 1 minute is missing at the end

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linuxuser
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Joined: Fri Jan 06, 2012 7:47 pm

A few seconds - 1 minute is missing at the end

Post by linuxuser »

I recode DVB-S2 recordings, everything looks fine, except that at the end a few seconds - could be 1 minute too, is missing. Lips are synced. When I compare the original video length with vlc or mediainfo and with handbrake, the handbrake-time is shorter. Please let me know, which info you need. I use "gtkgui: HandBrake svn7008 (2015032101) - Linux x86_64". I think the problem is the DVB-S-stream itself, but if I play the ts-file with vlc the end is there, which is not with handbrake.

Please let me know which info you need.
linuxuser
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Re: A few seconds - 1 minute is missing at the end

Post by linuxuser »

I found something interesting:

Original ts-file shows with vlc: 1:34:33 (6 GB)
Original ts-file loaded with handbrake: 1:33:26
Recoded file with handbrake: 1:33:26 (so about 1 minute is missing at the end)

Then I converted the original file into a mkv-container with "mkvmerge -o"
Original mkv-file with vlc: 1:34:34 (5.3GB)
Original mkv-file loaded with handbrake: 1:34:34
I didn't recode it with handbrake until now

So mkvmerge somehow heals the handbrake problem, although the file gets smaller, maybe the conversion reduces audio tracks or something else.

avconv -i ...ts -c copy ...ts makes the file smaller too, but handbrake shows 1:32:55 as length and the file is broken, I cannot move forward.
mduell
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Re: A few seconds - 1 minute is missing at the end

Post by mduell »

linuxuser
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Re: A few seconds - 1 minute is missing at the end

Post by linuxuser »

Yesterday I had 2 files with this problem. Unfortunately I deleted them, because I needed space on my disk, with 2 new files everything is ok. I will come back to you, if I have a file with this problem again. Maybe it depends on the recorded satellite channel. I am sure the primary problem is the sent stream and not handbrake, but I think handbrake can correct it, since mkvmerge can it.

I also updated handbrake, but if you are not aware of the problem, I think it is not solved because of the newest version.
linuxuser
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Re: A few seconds - 1 minute is missing at the end

Post by linuxuser »

The source is a recording from WDR:
20150401 1417 - WDR HD Köln - Lissabon - Stadt des Fado und des Lichts.ts
For testing the file was copied and renamed to test_broken.ts
[15:49:50] gtkgui: HandBrake svn7031 (2015033101) - Linux x86_64 - https://handbrake.fr
[15:49:50] hb_init: starting libhb thread
[15:49:50] hb_init: starting libhb thread
[15:49:50] hb_init: starting libhb thread
[15:50:01] CPU:
[15:50:01] - logical processor count: 8
[15:50:01] OpenCL: library not available
[15:50:01] hb_scan: path=/tapes/test_broken.ts, title_index=0
libbluray/bdnav/index_parse.c:162: indx_parse(): error opening /tapes/test_broken.ts/BDMV/index.bdmv
libbluray/bdnav/index_parse.c:162: indx_parse(): error opening /tapes/test_broken.ts/BDMV/BACKUP/index.bdmv
libbluray/bluray.c:2182: nav_get_title_list(/tapes/test_broken.ts) failed
[15:50:01] bd: not a bd - trying as a stream/file instead
libdvdnav: Using dvdnav version 5.0.1
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
[15:50:01] dvd: not a dvd - trying as a stream/file instead
[15:50:01] file is MPEG Transport Stream with 188 byte packets offset 0 bytes
[15:50:01] Found the following PIDS
[15:50:01] Video PIDS :
[15:50:01] 0x157d type H.264 (0x1b) (PCR)
[15:50:01] Audio PIDS :
[15:50:01] 0x157e type MPEG1 (0x3)
[15:50:01] 0x157f type MPEG1 (0x3)
[15:50:01] 0x1582 type AC3 (0x81)
[15:50:01] Subtitle PIDS :
[15:50:01] Other PIDS :
[15:50:01] 0x1580 type DVB Teletext (0x0)
[15:50:01] 0x87b type ISO 13818-6 DSM-CC U-N msgs (0xb)
[15:50:01] 0x942 type ISO 13818-1 private section (0x5)
[15:50:01] 0x1581 type DVB Subtitling (0x0)
[15:50:01] stream id 0x157e (type 0x3 substream 0x0) audio 0x157e
[15:50:01] stream id 0x157f (type 0x3 substream 0x0) audio 0x157f
[15:50:01] stream id 0x1582 (type 0x81 substream 0x0) audio 0x1582
[15:50:02] scan: decoding previews for title 1
[15:50:02] file is MPEG Transport Stream with 188 byte packets offset 0 bytes
[15:50:02] scan: audio 0x1582: ac3, rate=48000Hz, bitrate=448000 Deutsch (AC3) (2.0 ch)
[15:50:02] scan: audio 0x157f: mp2, rate=48000Hz, bitrate=200000 Unknown (MPEG) (2.0 ch)
[15:50:02] scan: audio 0x157e: mp2, rate=48000Hz, bitrate=200000 Deutsch (MPEG) (2.0 ch)
[15:50:04] stream: 30 good frames, 0 errors (0%)
[15:50:04] scan: 10 previews, 1280x720, 50,000 fps, autocrop = 0/0/0/0, aspect 16:9, PAR 1:1
[15:50:04] libhb: scan thread found 1 valid title(s)
mediainfo shows a length of 43mn 23s, while handbrake shows less (42:45).
$ mediainfo test_broken.ts
General
ID : 1201 (0x4B1)
Complete name : test_broken.ts
Format : MPEG-TS
File size : 3.00 GiB
Duration : 43mn 23s
Overall bit rate mode : Variable
Overall bit rate : 9 887 Kbps

Video
ID : 5501 (0x157D)
Menu ID : 28325 (0x6EA5)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=8, N=32
Codec ID : 27
Duration : 43mn 23s
Bit rate : 8 558 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 50.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.186
Stream size : 2.59 GiB (87%)

Audio #1
ID : 5502 (0x157E)
Menu ID : 28325 (0x6EA5)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Codec ID : 3
Duration : 43mn 23s
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy
Delay relative to video : -611ms
Stream size : 59.6 MiB (2%)
Language : German

Audio #2
ID : 5503 (0x157F)
Menu ID : 28325 (0x6EA5)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Codec ID : 3
Duration : 43mn 23s
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy
Delay relative to video : -612ms
Stream size : 59.6 MiB (2%)

Audio #3
ID : 5506 (0x1582)
Menu ID : 28325 (0x6EA5)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : 6
Duration : 43mn 23s
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -786ms
Stream size : 139 MiB (5%)
Language : German

Text #1
ID : 5504 (0x1580)-100
Menu ID : 28325 (0x6EA5)
Format : Teletext
Language : German

Text #2
ID : 5505 (0x1581)
Menu ID : 28325 (0x6EA5)
Format : DVB Subtitle
Codec ID : 6
Delay relative to video : 2s 640ms
Language : German

Menu
ID : 5500 (0x157C)
Menu ID : 28325 (0x6EA5)
Duration : 43mn 23s
List : 5501 (0x157D) (AVC) / 5502 (0x157E) (MPEG Audio, German) / 5503 (0x157F) (MPEG Audio) / 5504 (0x1580) () / 5506 (0x1582) (AC-3, German) / 2171 (0x87B) () / 2370 (0x942) () / 5505 (0x1581) (DVB Subtitle, German)
Language : / German / / / German / / / German
Handbrake shows a length of 00:42:45,00. See Screenshot:

Image
Last edited by linuxuser on Wed Apr 01, 2015 2:23 pm, edited 1 time in total.
linuxuser
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Posts: 184
Joined: Fri Jan 06, 2012 7:47 pm

Re: A few seconds - 1 minute is missing at the end

Post by linuxuser »

After a conversion of the ts file to mkv with mkvmerge I see the "mediainfo-time" in handbrake:

Image
$ mediainfo 20150401-1417---wdr-hd-koeln---lissabon---stadt-des-fado-und-des-lichts~16.9_1280x720p_v_9338kbps_vmpg4_mp3_48khz_43mn24s.mkv
General
Unique ID : 275528383475867548916294520395982476277 (0xCF48D6200BB1A0AB97119D3158F493F5)
Complete name : 20150401-1417---wdr-hd-koeln---lissabon---stadt-des-fado-und-des-lichts~16.9_1280x720p_v_9338kbps_vmpg4_mp3_48khz_43mn24s.mkv
Format : Matroska
Format version : Version 4 / Version 2
File size : 2.83 GiB
Duration : 43mn 24s
Overall bit rate : 9 338 Kbps
Encoded date : UTC 2015-04-01 13:30:39
Writing application : mkvmerge v6.7.0 ('Back to the Ground') 64bit built on Jan 9 2014 18:03:17
Writing library : libebml v1.3.0 + libmatroska v1.4.1

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=8, N=32
Codec ID : V_MPEG4/ISO/AVC
Bit rate : 8 320 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Original frame rate : 50.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Default : Yes
Forced : No

Audio #1
ID : 2
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Codec ID : A_MPEG/L2
Codec ID/Hint : MP2
Duration : 43mn 24s
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy
Delay relative to video : -487ms
Stream size : 59.6 MiB (2%)
Language : German
Default : Yes
Forced : No

Audio #2
ID : 3
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Codec ID : A_MPEG/L2
Codec ID/Hint : MP2
Duration : 43mn 24s
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy
Delay relative to video : -488ms
Stream size : 59.6 MiB (2%)
Default : No
Forced : No

Audio #3
ID : 4
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : A_AC3
Duration : 43mn 24s
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -566ms
Stream size : 139 MiB (5%)
Language : German
Default : No
Forced : No
Woodstock
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Re: A few seconds - 1 minute is missing at the end

Post by Woodstock »

Recorded transport stream files can have inconsistencies in them. I have seen numerous recommendations for running any recorded TS files through a utility like "Video Fixer" to have those cleared up before you run it through handbrake.
linuxuser
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Re: A few seconds - 1 minute is missing at the end

Post by linuxuser »

What do you recommend to fix it with Linux? Is threre a better recommendation than mkvmerge?
Woodstock
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Re: A few seconds - 1 minute is missing at the end

Post by Woodstock »

Personally, I can't make any recommendations, but several possibilities came up with a search for "video fixer linux" on Google.
linuxuser
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Re: A few seconds - 1 minute is missing at the end

Post by linuxuser »

Thanks, I have one dvb-receiver which creates files, that are better converted with mkvmerge, while files from the other are better converted with avconv / ffmepg. Project-X doesn't work with HD-videos. Mjpegtools have been reported to create audio delays. Not so easy ...
linuxuser
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Re: A few seconds - 1 minute is missing at the end

Post by linuxuser »

In the meantime I encoded a few very problematic dvb-streams, eg they could not be played with vlc or only partially, crashed with kdenlive, a.s.o.
HandBrake 0.10.1 (2015030800) encoded them all as expected, no problems detected. So IMHO there must be a bug with the development versions.
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JohnAStebbins
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Re: A few seconds - 1 minute is missing at the end

Post by JohnAStebbins »

You have a bad habit of not providing proper logs. In all of this, you have not provided a single encode log showing us what HandBrake does when encoding one of these files. An encode log might show us why it skips the final bit of the file.
linuxuser
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Re: A few seconds - 1 minute is missing at the end

Post by linuxuser »

Sorry, I posted all the log I got with handbrake. There is nothing more than in the 5th posting above.
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JohnAStebbins
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Re: A few seconds - 1 minute is missing at the end

Post by JohnAStebbins »

The 5th posting is a scan log. Not an encode log. I want to see what happens when HandBrake encodes this file, not just the scan.
linuxuser
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Re: A few seconds - 1 minute is missing at the end

Post by linuxuser »

Ok, sorry, next time I will try to do it better.
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