How to open AVC and AAC in VirtualDub (AviSynth/DShowPlugin)?

[klischee]

So unless you are adept at configuring your directhow system, I would avoid directshowsource() completely, and use only as last resort

Ah, okay, seems I didn't listened to you clearly
So I will use ffmpeg mainly now.

It does have a frame rate bug with some transport streams (.m2ts, .ts) so you might want to fix it in avisynth (e.g. with assumefps) , or use another source filter to load if your source is transport stream.

When I work with .ts I convert it with StaxRip. I had so much problems with with .ts (f.e. when I record DVB-T), but StaxRip was the only tool (or "toolpack") which is able to convert it without any problems

Big thanks again for your great support

Ok, so I think I can live with those solutions and tips now (hopefully).

Edit:

BTW , when you use graphstudio, you open the native file, not the avs, to see the filter chain

Oops, okay
So, it opens the .mov with Haali Media Splitter (2ch) --> Microsoft DTV-DVD Audio Decoder (in/out 2ch) --> AC-3 Filter (2ch) --> Default DirectSound Device (2ch). No 5.1/6ch anywhere Don't understand it.

But who cares, ffmpeg does the trick. ^^

[klischee]

Hey, me again.

After a lot of testing, I must say i have a lot of asynchronity issues with FFMS2 & flv. More than with directshow. FFMS2 has an delay at almost all videos of +2500ms. Do you or someone else have any idea why?

I tried it with ffmpegsource2, FFIndex, AudioDub, ... but 2500ms audio delay all the time. ffindex has an parameter for the delay, but I don't get into it, how can I tell FFMS2 to delay the audio -2500ms? When I do it in VirtualDub (Audio --> Interleaving) it works, but as I work with hundrets of videos a week I don't want to input it all the time manually in VDub.

And I don't want to go back to DShow

[poisondeathray]

constant delay or variable delay ?

vfr flv ? (variable frame rate) ?

mediainfo (view=>text) and post the results of the flv

vid=ffvideosource("video.flv")
aud=ffaudiosource("video.flv")
audiodub(vid,aud)
DelayAudio(x)

where "x" is the value in s. It can be - or +
http://avisynth.org/mediawiki/DelayAudio

[klischee]

Hey.. man you should get an award for your 24/7 support here

Please wait for more information, I will document the next days videos which have audio delay issues. There are also some FLVs which get a slow frame rate after I edited them with FFMS. MediaInfo tells they all have a constant frame rate.

Thanks for your aviscript, it works, the delay get's corrected. But to prevent asynchronities globally I will give you more informations about affected videos later, at moment it's too chaotic to discuss about it seriously

[klischee]

Please let's have a look at video frame rate issues first. The input video has 15 fps. After editing it with ffmpegsource2("video.flv", atrack=-1) in VirtualDub, it has only 7,518 fps. Do you have an idea why?

Input:

Video
Format                           : H.263
Duration                         : 11mn 2s
Bit rate                         : 411 Kbps
Width                            : 640 pixels
Height                           : 480 pixels
Display aspect ratio             : 4:3
Frame rate mode                  : Constant
Frame rate                       : 14.000 fps
Bits/(Pixel*Frame)               : 0.095
Stream size                      : 32.5 MiB (100%)

Output(after cutted a part out of it with VDub):

Video
ID                               : 0
Format                           : MPEG-4 Visual
Format profile                   : Advanced Simple@L5
Format settings, BVOP            : Yes
Format settings, QPel            : No
Format settings, GMC             : No warppoints
Format settings, Matrix          : Default (H.263)
Muxing mode                      : Packed bitstream
Codec ID                         : XVID
Codec ID/Hint                    : XviD
Duration                         : 1mn 41s
Bit rate                         : 438 Kbps
Width                            : 640 pixels
Height                           : 480 pixels
Display aspect ratio             : 3:2
Frame rate                       : 7.518 fps
Color space                      : YUV
Chroma subsampling               : 4:2:0
Bit depth                        : 8 bits
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.190
Stream size                      : 5.30 MiB (100%)
Writing library                  : XviD 1.2.1 (UTC  2008-12-04)

Other video example, same problem (30fps input, 15.152 fps output):

Original video:

Video
Format                           : VP6
Duration                         : 1mn 14s
Bit rate                         : 269 Kbps
Width                            : 480 pixels
Height                           : 360 pixels
Display aspect ratio             : 4:3
Frame rate mode                  : Constant
Frame rate                       : 30.000 fps
Bits/(Pixel*Frame)               : 0.052
Stream size                      : 2.40 MiB (88%)

What VirtualDub get as input through avs:


Output:

Video
ID                               : 0
Format                           : MPEG-4 Visual
Format profile                   : Advanced Simple@L5
Format settings, BVOP            : Yes
Format settings, QPel            : No
Format settings, GMC             : No warppoints
Format settings, Matrix          : Default (H.263)
Muxing mode                      : Packed bitstream
Codec ID                         : XVID
Codec ID/Hint                    : XviD
Duration                         : 9s 900ms
Bit rate                         : 410 Kbps
Width                            : 480 pixels
Height                           : 360 pixels
Display aspect ratio             : 3:2
Frame rate                       : 15.152 fps
Color space                      : YUV
Chroma subsampling               : 4:2:0
Bit depth                        : 8 bits
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.157
Stream size                      : 496 KiB (98%)
Writing library                  : XviD 1.2.1 (UTC  2008-12-04)

VirtualDub receives the input video with the half frame rate, so AviSynth is the one which halfs it down. But why? :O Btw: This affects not all FLV-Videos, but some.

[poisondeathray]

It's hard to make broad generalizations, each one might be a specfic case to look into. If you can upload one of the smaller videos to a free hosting site, I can look into it (e.g. mediafire.com)

But if the frame count is correct, you can use assumefps

e.g.

vid=ffvideosource("video.flv")
aud=ffaudiosource("video.flv")
audiodub(vid,aud)
assumefps(30)

or whatever the correct value is 14 for the other video

check your scripts before encoding. You can use info() to see the detected frame rate, and preview .avs in a mediaplayer for sync (e.g. mpc)

[Gavino]

You can use info() to see the detected frame rate, and preview .avs in a mediaplayer for sync (e.g. mpc)

Also useful is FFInfo() (from ffms2.avsi), which will show the timestamps of each frame, both as seen by Avisynth and by FFVideoSource.

[alancarre]

[QUOTE=DarrellS;2017035]
Use gdsmux.exe (part of Haaili splitter) to copy the streams to a TS container

Thank you! You are God.