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19th September 2015, 16:47 | #1 | Link |
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Newbie Question re: Simple AVI codec Task
Hi All, I read the above Sticky regarding External Encoders, but I am quite lost on what *I Think* is a very simple use of VirtualDub (1.10.4, which I downloaded yesterday)
Warning: I cannot remember the last time I used this tool, but I never could deal with command line concepts. In an nutshell: I am using a 3D Compositing software that Outputs Uncompressed AVI format, with or without Sound. Some outputs will be "RGBA" (to include Alpha data), others may be "RGB" only. In both cases, the outputs may or may not include Audio. The reason I am looking for help with VirtualDub: I will need to encode my Uncompressed outputs to AVI, using a particular third-party codec which I have already installed on my Win7Pro x64 workstation. I have been able to to "re-encode" using this codec, using my editing program-- but there is a limitation: it cannot export with original Alpha intact.* I believe the codec will support including Alphas, and that it is my edit software that cannot handle the Alphas. (it is not something it would normally do, anyway). So what i need: To use VirtualDub to encode to this third party codec, uing one of the 4 different bitrates/colorspace settings it offers. (I see these choices available in my edit software's Custom export setting). Plus I gather I may need to prepare different "Edit External Encoder" Command Arguments, depending on the presence of Audio and/or Alphas in my original Uncompressed AVI files. That's the gist of it. I truly cannot wrap my head around the necessary Commands, or even the difference between the "Encoder Sets" tab and the "Encoder" tab, within the "Configure External Encoders" box. Following the online directions, I did however, mange to ADD n Encoder Profile, use EDIT to then locate the codec in question: C:\Program Files\Video Codec\unins000.exe Beyond that, I am really stumped for what commands arguments to type- I'm not even sure if I should only use Multiplexer, or use both that and Video. Any simple suggestions or sample command arguments will help me tremendously. I can say that I would be so happy to just be started in the right direction. In my edit program's export menu, I have seen that this codec offers a 424 or 444 choice, as well as a quality slider from 100 to 80 or below. When I use "MediaInfo program" to examine a Bars and Tone 444 100 (top) quality file that I exported from my edit program, I see the following info: Format AVI Overall bitrate: 47.1 Mbps -VIDEO ID:0 Bit rate: 45.6 mbps Width: 1920 pixels Height: 1080 pixels Display Aspect ratio: 16:9 Frame Rate: 29.970 fps Bits/(Pixel&Frame): 0.733 Stream Size: 32.6 MiB (97%) Title: V -AUDIO Format PCM Format settings: Endianness Little Format settins: Sign: signed Codec ID: 1 Bit rate mode: Constant Bit rate: 1.56 Kbps Sampling rate: 48.0 Khz Bit Depth: 16 bits Stream size: 1.10 MiB (3%) Alignment: Aligned on interleaves Interleave duration: 2002 ms (60.00 video frames) Title: A I hope that info helps provide necessary info for acceptable command arguments. I will be quite happy if I can get an exact copy of original file specs, but with new codec specs applied. THANKS!!! for any help you may offer, including copy/paste-able text, other links, or other basic tips. best regards, AFord. Last edited by AFord; 19th September 2015 at 17:21. |
19th September 2015, 17:01 | #2 | Link |
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VirtualDub's "external encoder" feature is designed for YUV, not for anything with alpha. It is there to pipe to command-line encoders like x264.exe or ffmpeg.exe - does your encoder even offer such an option? Many "professional" codecs are VfW only. I suggest you mention which format exactly you are planning to encode to, maybe it is supported by ffmpeg.
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19th September 2015, 17:53 | #4 | Link |
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Does your 3rd party codec appear in the compression menu in vdub (video=>compression) ? If it's VFW x86 it should appear in x86 vdub. If it's VFW x64, it should appear in x64 vdub (and sometimes even x86 vdub)
If you can be more specific about the programs and codec being used, it might help Does your compositing program support separate alpha channel? Because that would be a possible workaround / workflow |
19th September 2015, 20:41 | #5 | Link |
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Sorry for the delay in responding.
I must get back to this request another time-- I was having trouble getting my reply posts online through the TOKEN Q&A that must be answered correctly. I'll need to return here, later, with more info you require. Thanks for generously offering support. |
19th September 2015, 23:55 | #7 | Link |
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Join Date: Nov 2007
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My apologies, RaffRiff! I followed something but whatever I did there, it was merely intuitive, so that was a mis-statement on my part. I probably was on the wrong path.
I have much respect for what you all do and the precision involved and generosity of teaching it to all the code-challenged persons like myself. I'm going to go off and deal with some old software and see how I do. Best Regards, AF |
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