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Having a problem with VirtualDub2

August 12, 2019, 1:25 pm
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I'm trying to create a test mp4 with it using external encoders. Video encoder is set to x264 - HQ, audio encoder is set to qaac, multiplexer is set to MP4Box. For x264 - HQ, I'm using x264_64.exe (location set correctly), the command arguments are,

--crf 19 --preset medium --level 4.1 --keyint 24 --tune film --min-keyint 1 --bluray-compat --b-pyramid none --demuxer raw --input-csp i420 --input-res %(width)x%(height) --fps %(fpsnum)/%(fpsden) -o "%(tempvideofile)" -

and the output filename is,

%(outputname).264

For qaac, the command arguments are,

-q 0.80 -ignorelength -if - -of "%(tempaudiofile)"

I'm not sure about the output filename. Maybe that's what giving me the oroblem. Right now, it's,

%(outputname).m4a

I had tried %(outputname).audio but that gave me a problem as well. The problem is that every time I try to export the mp4, I'm given the error message,

The audio encoding process has prematurely exited with an error code of 1 (00000001). Check the log for possible error messages.

[*] Beginning dub operation.

[i] Dub: Input (decompression) format is: YUV420P16.

[i] Dub: Output (compression) format is: RGBA32.
[*] Ending operation.
[*] Beginning dub operation.

[i] Dub: Input (decompression) format is: YUV420P16.

[i] Dub: Output (compression) format is: YUV420.

[i] Dub: Command line encoding started with format: YUV420.

[i] video encoder: "C:\Users\Bruce\Desktop\x264_64.exe" --crf 19 --preset
medium --level 4.1 --keyint 24 --tune film --min-keyint 1 --bluray-compat
--b-pyramid none --demuxer raw --input-csp i420 --input-res 1920x800 --fps
24000/1001 -o "C:\Users\Bruce\Desktop\test.mp4.264" -

[i] audio encoder: "C:\Users\Bruce\Desktop\qaac.exe" -q 0.80 -ignorelength -if
- -of "C:\Users\Bruce\Desktop\test.mp4.m4a"

[i] AudioEnc: invalid option -- g

[E] Error: The audio encoding process has prematurely exited with an error
code of 1 (00000001). Check the log for possible error messages.
[*] Ending operation.
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Help ripping C-Span videos?

August 12, 2019, 1:48 pm
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Hello, all--I have a bunch of C-Span videos that I need to rip but can't figure out how to do so. Could I get some help?
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ZR700 aux lens

August 12, 2019, 2:33 pm
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I know, this is an old camera but...

I want to connect a wide angle lens on the front but can't find info on what type of connector (threads) is on the ZR700.

Anyone??
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Using movie maker . . .

August 12, 2019, 4:00 pm
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OK hi everyone. Just started using windows movie maker version 2002. A strange beast for sure - very intimidating. Many times I walked away from WMM but kept coming back and have finally gained mastery over it. The problem is that WMM is very picky with memory especially if you are using an old computer without any.

However i persevered and set up my virtual memory to 512MB and minimum hard drive space to 2 GB. There are things to watch for.

When you are transferring from camera to WMM dont use it's built in features too much. Use windows camera wizard to transfer AVi files from your (say) Canon Power shot to your hard drive. I tried to transfer files from camera to USB stick but the camera wizard prefers to use the hard drive. Thats ok. Once the files are on the hard drive then copy those files to a USB stick and then delete those same files from the hard drive freeing up hard drive space (hey i only got a 6 GB hard drive- ya really!!!)

Ok now comes the real challenge. When you are saving an edited movie (with AVI source files) The only setting that works in WMM is the DV-AVI format. All the rest of those settings that save files in different formats don't work if you are tight in the ram department because WMM is a memory HOG in those other formats.

So the DV-AVI hardly uses any memory at all - amazing but . . . . the file produced is 3 times larger than the source files. Thats OK as you tube accepts that format but . . . you will be filling up your archive USB sticks pretty fast

My question is why does the DV-AVI format in WMM bloat the files that way?
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I don't know how to publish videos with high quality

August 13, 2019, 3:14 am
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I read online and tried a lot of software, because I just learned about video so I don't know which software publishes the best video of high quality.
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Mastering to a consumer Blu ray recording deck vs a 'pro' one.

August 13, 2019, 4:46 am
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I've been using very serviceable Panasonic blu ray recording decks for a number of years (latterly the DMR-DW780 with dv-in, original cost $600) to archive my VHS and camcorder tape collection to disk. I'm becomeVERY quality conscious since I got a sweet Sony Bravia OLED 4K telly. I want to see the very utmost that can be gleaned from my tapes. Hence, would I see a difference (audio or video) were I now to use a $2000+ 'pro' deck such as the JVC SR-HD1340 to record to disk?
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Should i remove my back fan on my desktop?

August 13, 2019, 9:56 am
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I am almost done rebuilding my desktop but i decided to go with a different liquid cooler. So i ordered a Cooler Master Hyper 212 Evo. I am wondering if i need to remove my desktop the fan in the back of the pc for the hyper 212 air to blow out of the back? That's the way ill be facing hyper 212 fan.
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FFMPEG: how to batch extract all audio streams into separate mono files?

August 13, 2019, 1:31 pm
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Hi, please respect for the cats

I wonder if is there a way via batch-ffmpeg-windows to automatically extract every audio streams (all) from a source file into a separate .wav mono file(s) ? thanks
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using masks to target specific colors

August 13, 2019, 4:47 pm
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As the title states. I use mt_masks and would like to know if it's possible to do this. I'm currently working with animated content and have already figured out how to use mt_binarize, combined with levels in order to apply aggressive degraining to white/light pixels while masking out dark ones.

So, just like I was able to do this with light pixels, I was wondering if I can incorporate some color function into mt_binarize (or another mask function) in order to aggressively filter red pixels, while masking light/dark pixels. Here's what my current script looks like for filtering light pixels, but masking the others.

Code:
mpg2sourece=(blah)
a=last
b=Mctemporaldenoise(settings="high", sharp=false, deblock=true, truemotion=true)
mask = mt_binarize(threshold=65, Levels(20, 0.6, 255, 16, 235). Blur(1.5). FastLineDarkenMOD(). Toonlite(1.0). Toonlite(1.0). santiag(). santiag())
Overlay(a,b,mask=mask)
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New VHS Project

August 13, 2019, 4:51 pm
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Hi everyone, this is my first post after lurking a while. I'll get straight to some specific questions I have about NTSC VHS conversion. Details below for anyone who wants more context. Thanks!
  1. I'd like to convert two tapes at a time but also maximize compatibility. Would I be better off with two AG-1980s, or one AG-1980 and one SR-V10U?
  2. Tom Grant says a Leitch TBC should work as well as a green AVT-8710. Others suggest Leitch is inappropriate for this because it expects studio sources. Can someone provide concrete examples or information regarding the difference?
  3. Provided adequate CPU/RAM/storage, can I run two VC500s on one capture rig simultaneously? Three?
  4. If so, are multiple iterations of VirtualDub the optimal software for the job?
  5. Win10+VC500 vs WinXP+9600XT capture rigs: all else equal, is there be a discernible difference in quality?
  6. Is my Behringer UMC404HD interface a good solution for capturing VHS audio? What's the ideal signal path?


DETAILS
I'm about to start a project converting hundreds of non-commercial home VHS tapes, and I want to do this once and do it right. Over the past year I've been poring over AMIA, dFAQ, TGP, and here, and enjoyed a wonderful phone call with Tom Grant a few weeks back. My above questions remain because some have been addressed only in threads that went unanswered or answered with conflicting responses; others in threads that are just plain old. Here's more context for those questions, and more info on the equipment I plan to use and how:
  • A decent, but budget VCR to run tapes through before letting them near the JVC/Panasonic, and to convert a few tapes to show the difference between consumer and pro gear to people seeking VHS conversions. I was thinking a White Westinghouse WVCR-8600 from TGP. Is there a better budget VCR, or one that might even be conversion-worthy for certain tapes?
  • Two pro VCRs. Some tapes will probably demand my full attention, but it'd be nice to convert two simultaneously when I can; plus I want a solid backup. I've read the AG-1980 plays 90% of tapes well, and paired with a good JVC will play 99% well; so I'm thinking one AG-1980 and one SR-V10U. But the former is so robust I wonder if two 1980s would be more viable long-term?
  • Leitch DPS-235D. My first choice was a TBC-3000, but I've read they're not great on EP tapes (I'll have to convert some) and have yet to find a TBC-3000 or TBC-1000s from a trustworthy source. There are a couple AVT-8710s for sale locally but for the price of two, I could get a DPS-235D and save hundreds. Tom Grant says that'd be good for my use; dFAQ disagrees, saying they expect studio sources (same for the TBC-5000 I see TGP also has now). Both sources have products to sell, so … can someone break this down with concrete, evidence-supported info?
  • A Studio 1 Productions Dual Proc Amp, for basic analog color correction before conversion. I do NOT want to bake any "enhancements" like sharpening into the digital master so am not looking at detailers. Am I on the right track with this thinking?
  • VC500s.From a past life building computers I have three complete 9600XT AIWs and enough other hardware to build a few XP capture rigs. Seems some consider this the gold standard for VHS conversion. For example this topic, on a scale of 1-100, rates AIWs 95, the ATI 600 85, and the VC500 65. I'm starting to wonder if the Win10 haters are luddites—the VC500 seems well-liked and posts like this inspire confidence—but am I missing something?
  • Win10. I'd rather not have slow, inefficient XP rigs consuming power, generating heat and noise, and adding a step to my workflow. But if they're truly and discernibly superior, no question—I'll set them up. Otherwise, I already have a Win10 workstation (i7 6800K, 32GB DDR4-2133 if that's relevant) I can dedicate to this. I plan to make 720x480i Ut Codec masters and can dedicate a 10TB HDD and an NVMe SSD to each capture process.

That's it. I've done my share of reading but that's nothing without experience, so I'm here to learn from you all. Thanks!
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Trying to convert old 8mm video cassettes to digital

August 14, 2019, 2:22 am
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Hello,
I'm trying to convert old 8mm tapes using the Sony handycam Video8 connected to Video Capture then connected to my PC I can get the video on the PC but there is no no sound.
Can someone please help.
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how to tell to avisynth that audio have to be 48KHz?

August 14, 2019, 5:22 am
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Hi, but I'm a cat

please consider my source script

Code:
LoadPlugin("v:\AviSynth\FFMS2_23_64bit\ffms2-2.23.1-msvc\x64\ffms2.dll")
Import("V:\AviSynth\FFMS2_AVSI_2019\ffms2.avsi")
LoadPlugin("v:\AviSynth\Lsmash64perVirtualDub64\LSMASHSource.dll")
vid=blankClip()
aud=FFMS2("C:\edius\dec.mov", atrack=-1)
left=GetChannel(aud, 1)
right=GetChannel(aud, 2)
both=mergechannels(left, right)
audiodub(vid, both)
ConvertAudioTo16Bit()
I wonder how can I force the audio output to 48Khrz ? (same as -ar 48000 of ffmpeg?)

thanks
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[Sony Vegas] Whenever I go into another window video becomes black

August 14, 2019, 6:06 am
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The preview of the video becomes black some seconds whenever I go into another window (for example, my "samples" folder, or going into Firefox or whatever else) and I go back to Vegas, it becomes black, and I have to wait for it to load. This is insanely annoying. I think I mangaged to fix this in the past but I dont know how. Im using Vegas 13.
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QTGMC Problem

August 14, 2019, 6:21 am
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I have installed all required files, but the AviSynth gives me error "MDegrain1 does not have an argument ISB". I've successfully saved SMDegrain script, but it gives me that problem. Is there something wrong with the script that's being posted?
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Am I bottlenecked? x264 encoding

August 14, 2019, 6:27 am
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So, I recently upgraded my CPU from R5 2600 to 3600X. I know it's not a massive upgrade but it has decent gains.
So I expected my encoding times to improve but they really didn't. I'm sitting at around 9-11 fps for the 2nd pass.

So this is what I do. I edit in Vegas Pro, then I frameserve it to Avisynth+. The only thing I do here is convert back to PC.709 and adjust the colors a bit:
avisource("d:\source.avi").convertToYV12(matrix="P C.709").Tweak(hue=0.0, sat=1.05, bright=1, cont=1.0, coring=false)

Then I open the script in MeGUI and convert to x264 with these settings:
--preset veryslow --pass 2 --bitrate 40000 --stats ".stats" --threads 12 --deblock -1:-1 --keyint 300 --bframes 2 --scenecut 60 --ref 6 --rc-lookahead 40 --merange 16 --partitions p8x8,b8x8,i8x8i4x4 --no-dct-decimate --no-fast-pskip --colormatrix bt709

I'm seeing ok CPU usage but with this type of workload I would expect it running at 100% load and it does not.

Any ideas on how I can find bottleneck and if there's anything I can do about it?
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HEVC encoding. Any advantages to restricting dimensions to multiples of N?

August 14, 2019, 1:47 pm
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Hi,

back in the H263 days I used to compress all my videos restricting the height/with to multiples of 16, accorsing to a not--too-well-understood kind of consensus.
Now I'm using HEVC and I wonder if there's any reason/advantage to restrict dimensions to any given multiple (2, 4, 8, 16...).

Can someone provide a reasoned answer or point me to a knowledgeable article that clarifies it?


Thanks for any help you can provide.
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How to raw TS packets off HLS stream -- Without decoding

August 14, 2019, 3:16 pm
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New to ffmpeg and playing around that to understand better. I'm trying to use ffmpeg code base to get TS packets from a HLS Streaming server. I don't need any decoding as I just have to store the TS packets to be processed later.

First I built a minimal FFMPEG as outlined in https://ffmpeg.zeranoe.com/forum/viewto ... f=5&t=7426. No decoders and only hls and mpegts demuxers. Then using the following code to receive the frames. While inspecting it doesn't seem to be MPEG-TS packets while looking into buffers thru GDB. Attaching the code here..

Two Questions:
1. Shouldn't the av_recv_frame get me the TS packets? However When I trace all the way to playlists (off HLSContext), the read_buffer there contains TS packets. IS there any example I could look into to get TS packets in this scenario without decoders?

2. If I get answer for (1), How to get the best stream off the HLS server? when looking into ffplay, av_find_best_stream() sounds like the one to look into.. But again without needing to decode, is there a way to get best one according to the network condition?

Thanks..


int main(int argc, char *argv[])
{
AVFormatContext * ifmt_ctx = NULL;
char *in_filename = NULL;
int ret = 0;
AVPacket pkt;

if (argc != 2)
{
return 1;
}
in_filename = argv[1];

av_register_all();


if (!(ifmt_ctx = avformat_alloc_context())) {
goto end;
}
if ((ret = avformat_open_input(&ifmt_ctx, in_filename, 0, 0)) < 0)
{
fprintf(stderr, "Could not open input file '%s'", in_filename);
goto end;

}

if ((ret = avformat_find_stream_info(ifmt_ctx, 0)) < 0)
{
fprintf(stderr, "Failed to retrieve input stream information");
goto end;

}


av_dump_format(ifmt_ctx, 0, in_filename, 0);

while (1)
{

ret = av_read_frame(ifmt_ctx, &pkt);
if (ret < 0)
break;

av_free_packet(&pkt);

}


end:

avformat_close_input(&ifmt_ctx);
return 0;
}
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10bit DPX to DNXHR_444 with FFmpeg causing colour shift

August 14, 2019, 4:48 pm
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I'm trying to build a python application to convert a 10bit DPX sequence to a 4k DNXHR_444 MOV with a Arri to Rec709 lut, just as I would in Davcincci resolve.

Code:
ffmpeg -f image2 -framerate 24 -pattern_type glob -i INPUT.dpx -c:v dnxhd -profile:v dnxhr_444 -vf lut3d=ArriAlexa_LogCtoRec709_Resolve.cube,colormatrix=bt601:bt709 -pix_fmt yuv444p10le -c:a pcm_s16le -y -timecode 00:00:41:16 OUTPUT.mov
When comparing the output to the dpx in resolve with the lut on it, there is a slight colour shift making everything slightly more red. Even when i take the lut out of the ffmpeg code, there is still a slight redness. The colourmatrix helps a bit to get it closer but it isn't close enough. Any ideas why I can't get them to match?

Here is a:
- JPG - reference of what the DPX + LUT should look like
- DPX - a frame of the dpx sequence I'm trying to convert to DNXHR_444
- the ArriLogC_to_Rec709 LUT to be applied to the DPX
Let me know if you need anything else.

https://drive.google.com/drive/folders/1j2Qq1sV5ZJJsMYe3DOFOV0dnQ3VIotcw?usp=sharing
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Manual photo slideshow

August 14, 2019, 5:21 pm
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Can anybody recommend a software package that can be used to create a photo slideshow that I can burn to a DVD to play on a DVD player connected to a TV where you press the remote control [Next] button to manually advance the photos one at a time?
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Reset Potplayer option to add date/time to jpg

August 14, 2019, 9:57 pm
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Recently I inadvertently checked add date time to captured image. No amount of checking a second time will uncheck it. Anyone know how to reset that option?
Thanks
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