.ts files won't play properly and are missing audio after QSF

Bradj@mira.net

New member
I have a bunch of .ts files, around 600MB each.
If I play try to play them in VRD then the video stalls and there is no audio.
If I skip to different locations eventually it will play video and audio.

VLC plays them both OK, although the QSF output has no audio.

If I QSF the file then it plays video back reliably but there is no audio, even though MediaInfo says there is an audio stream.

MediaInfo dump of original file and QSF'd files are attached.

Happy to upload the video file for investigation.

Note: Just tried with v5. Exactly the same behavior.
 

Attachments

dlflannery

Moderator
I suspect VRD staff would want to see the file parameters obtained by loading the files into VRD and hitting Ctrl-L. There are some suspicious differences in comparing the mediaInfo however:

look at the durations in the General, Video and Audio sections. Values vary from. ~22 min to ~21 hours. Definitely some problem with these files.
 

Bradj@mira.net

New member
Yes, I suspect the issue is caused from using the ad cutting editor on the PVR to free up some space and its ended up corrupting the .ts file.
I've QSF'd lots of files cut in this method before without an issue. Perhaps these were cut up at a time when the PVR editor was in a NQR state.

Program information from the original file is below:

File: Name : D:\VAP\Orig.ts
Size : 0.619 GB
Duration : 00:42:58.23
Mux type : TS Stream
TS mux rate : 5.450 Mbps
Video: Encoding : MPEG2
VideoStreamID : x205
Frame rate : 25.00 fps
Encoding size : 720 x 576
Aspect ratio : 16:9
Header bit rate : 15.000 Mbps
VBV buffer : 224 KBytes
Profile : Main@Main
Progressive : Prog or Int
Chroma : 4:2:0
Bit rate : 1.659 Mbps
Field order : Top field first
Audio Stream: 1 (Primary) Codec : MPEG
MPEGLayer : Layer 2
Channels : 2.0
Language : eng
PID : x2BC
PES Stream Id : xC0
Bit rate : 192 Kbps
Sampling rate : 48000
Sample size : 16 bits
Subtitle: 1-1 Type : DVB Teletext
PID : 0x245
Language : eng
Page : 801

Program information from the QSF'd file:

File: Name : D:\VAP\QSF.ts
Size : 0.614 GB
Duration : 00:22:25.08
Mux type : TS Stream
TS mux rate : 7.488 Mbps
Video: Encoding : MPEG2
VideoStreamID : x205
Frame rate : 25.00 fps
Encoding size : 720 x 576
Aspect ratio : 16:9
Header bit rate : 15.000 Mbps
VBV buffer : 224 KBytes
Profile : Main@Main
Progressive : Prog or Int
Chroma : 4:2:0
Bit rate : 3.321 Mbps
Field order : Top field first
Audio Stream: 1 (Primary) Codec : MPEG
MPEGLayer : Layer 2
Channels : 2.0
Language : eng
PID : x2BC
PES Stream Id : xC0
Bit rate : 192 Kbps
Sampling rate : 48000
Sample size : 16 bits
Subtitle: 1-1 Type : DVB Teletext
PID : 0x245
Language : eng
Page : 801
 

Dan203

Senior Developer
Staff member
Is VideoReDo reporting any frames removed after the QSF? The biggest oddity I see there is the durat of the video is being cut almost in half by the QSF. How long is the original file when you play it in VLC?
 

Bradj@mira.net

New member
Hi Dan,

Re-testing both files with VLC I need to correct myself.
VLC doesn't quite play the original correctly.
Original File
Duration is 42:59
Audio plays from the start.
Video stalls early.
Depending where I click in the timeline Video and Audio start playing correctly.

QSF'd File
Duration is 22:24
No audio at the start
Video is fine
Audio starts at 02:55.

The QSF output is below:

3114
 

Dan203

Senior Developer
Staff member
Well there is something wrong with the source file. Based on the number of frames in the file and the reported frame rate the video should only be 22:25 long. The original reporting 42:58 means that either muxing is corrupt or there are large gaps in the file where there are no video frames.

How long are you expecting the file to be?
 

Bradj@mira.net

New member
The original recording was 42:58.
I used the ad cutting editor on the PVR to trim the start and end and the ads and the resultant recording should be 22:25.

So the ad cutting process has messed up the file but it plays OK on the PVR so the video and audio is there. I thought I would reach out to see if its something you would like QSF to be able to handle.
 

Dan203

Senior Developer
Staff member
If you contact support we can maybe get a sample from you and see if there is anything we can do.
 
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