720p --> 576i

[genak]

I'm trying to re-encode an upscaled (4:3 pillarboxed) 720p50 h264 transport stream to 576i so I can burn it to DVD. I used DGAVCDec to extract the audio and create a *.dga file, which I then put through an AVI Synth script to resize etc. I then loaded the *.avs file into HCEnc, but when I hit Encode I get the following error:



It appears after a few seconds of encoding and the program closes.

I don't understand the error at all, so what can I do?

I don't know if it helps, but below is the MediaInfo log of the source file:

General
ID                               : 3F3
Format                           : MPEG-TS
File size                        : 11.2 GiB
Duration                         : 2h 0mn
Overall bit rate                 : 13.3 Mbps

Video
ID                               : 6110 (0x17DE)
Menu ID                          : 11110 (0x2B66)
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : Main@L4.0
Format settings, CABAC           : Yes
Format settings, ReFrames        : 5 frames
Format settings, GOP             : N=16
Duration                         : 2h 0mn
Bit rate mode                    : Variable
Bit rate                         : 11.8 Mbps
Maximum bit rate                 : 12.0 Mbps
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)               : 0.255
Stream size                      : 9.90 GiB (88%)
Color primaries                  : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics         : BT.709-5, BT.1361
Matrix coefficients              : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio #1
ID                               : 6120 (0x17E8)
Menu ID                          : 11110 (0x2B66)
Format                           : MPEG Audio
Format version                   : Version 1
Format profile                   : Layer 2
Duration                         : 2h 0mn
Bit rate mode                    : Constant
Bit rate                         : 256 Kbps
Channel(s)                       : 2 channels
Sampling rate                    : 48.0 KHz
Video delay                      : 140ms
Stream size                      : 221 MiB (2%)
Language                         : German
Language, more info              : Clean effects

Audio #2
ID                               : 6121 (0x17E9)
Menu ID                          : 11110 (0x2B66)
Format                           : MPEG Audio
Format version                   : Version 1
Format profile                   : Layer 2
Duration                         : 2h 0mn
Bit rate mode                    : Constant
Bit rate                         : 192 Kbps
Channel(s)                       : 2 channels
Sampling rate                    : 48.0 KHz
Video delay                      : 33ms
Stream size                      : 165 MiB (1%)
Language                         : German
Language, more info              : Clean effects

Audio #3
ID                               : 6122 (0x17EA)
Menu ID                          : 11110 (0x2B66)
Format                           : AC-3
Format/Info                      : Audio Coding 3
Mode extension                   : CM (complete main)
Duration                         : 2h 0mn
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
Video delay                      : -13ms
Stream size                      : 386 MiB (3%)
Language                         : German
Language, more info              : Clean effects

[poisondeathray]

What version of HCEnc ? Try the new HCEnc beta released a few days ago . It fixed some issues with DGNVtools . And older builds of HCenc had known issues with DGAVCDec (I mean really old builds)

Is your script ok ? Can you preview it in vdub, or avsp ?

[genak]

What version of HCEnc ? Try the new HCEnc beta released a few days ago . It fixed some issues with DGNVtools . And older builds of HCenc had known issues with DGAVCDec (I mean really old builds)

Is your script ok ? Can you preview it in vdub, or avsp ?

I upgraded to the latest version of HCEnc and I still get the same problem.

The script opens OK in VDub and AvsP, but if I then press the right arrow key and scroll through the frames (in VDub) it crashes after seven seconds into the video (the same as with HCEnc). But, if I open it and drag the scroller to somewhere in the middle of the video it works fine. If, after doing that, I then drag the scroller back to the beginning of the video and scroll through the frames with the right arrow key as before it works fine, not crashing! I get exactly the same with AvsP as well.

Maybe there's an error in the original transport stream?

[Alex_ander]

Try to apply DGAVCIndex to demuxed h264 (use TSMuxer etc.).
Do you interlace it in script (you only mentioned resizing) or expect it from HCEncoder?

[manono]

Yeah, that's what I noticed as well. You didn't try and encode progressive 50fps for DVD, did you?

That may not explain the crashes, though.

[jagabo]

The script opens OK in VDub and AvsP, but if I then press the right arrow key and scroll through the frames (in VDub) it crashes after seven seconds into the video (the same as with HCEnc). But, if I open it and drag the scroller to somewhere in the middle of the video it works fine. If, after doing that, I then drag the scroller back to the beginning of the video and scroll through the frames with the right arrow key as before it works fine, not crashing! I get exactly the same with AvsP as well.

Maybe there's an error in the original transport stream?

Yes. Or a bug in the decoder. Actually, it's a bug in the decoder if it crashes -- ever, even if there is an error in the compressed video being fed to it.

[genak]

Try to apply DGAVCIndex to demuxed h264 (use TSMuxer etc.).

I did this and I get the same error.

Do you interlace it in script (you only mentioned resizing) or expect it from HCEncoder?

Yes, the AVI Synth script outputs 576i25.

Yes. Or a bug in the decoder. Actually, it's a bug in the decoder if it crashes -- ever, even if there is an error in the compressed video being fed to it.

Is there not much I can do then? It doesn't really matter too much; I can just keep the transport stream...

[jagabo]

I would try using a DirectShow decoder (DirectShowSource()) instead of DgIndex. I suspect your source uses PAFF or MBAFF which DgIndex can't handle. ffdshow, CoreAVC, Divx all handle those features properly.

[genak]

I installed ffdshow and changed the script so it loaded using DirectShowSource(), but when I try to preview it with VDub, I get the following error:

Avisynth open failure:
DirectShowSource: Could not open as video or audio.

Video returned: "DirectShowSource: couldn't open file ... the source for this file could not be loaded."

Audio returned: "DirectShowSource: couldn't open file ... the source for this file could not be loaded."

I guess there's something wrong with my script?

DirectShowSource(\"--.ts\")
Crop(160,0,-160,-0)
Lanczos4Resize(720,576)
SeparateFields.SelectEvery(4,1,2)
Weave()
ConvertToYV12()

[jagabo]

Do you have a DirectShow TS reader/splitter installed? Try Haali.

[genak]

Thanks, I installed Haali and it seems to be encoding fine now