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Questions tagged [directshow]

26 questions
7
votes
2 answers

FFMPEG Directshow Multiple Audio Capture

Is it possible to capture multiple audio devices using ffmpeg dshow? I am trying to capture my desktop using gdigrab along with mic and speaker audio using dshow. I have tried using the following command but it doesn't work: ffmpeg -f dshow -i…
putuyuwono
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4
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4 answers

Is there a VirtualDub alternative which works with DirectShow filters?

The question says it all: I'm looking for a VirtualDub alternative which can work with video files if there's only a DirectShow filter available (and not a VFW filters as VirtualDub requires)
Daniel Rikowski
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3
votes
0 answers

Windows lists the wrong Directshow Audio Capture Devices

Some time ago the directshow audio capture devices on my Win7 machine stopped updating. For example ffmpeg -list_devices true -f dshow -i dummy lists devices that have been uninstalled already and my microphone won't appear after connecting it. I…
TheLostOne
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2
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2 answers

Windows media scaling/interpolation method

Usually in Windows, if videos or other media is upscaled from a certain resolution to a higher resolution (e.g. "monitor size"), a bilinear filtering algorithm or similar is used, such that the upscaled material doesn't look blocky. On my system…
user20673
2
votes
0 answers

VLC output to DirectShow

I have a playlist of video files in various formats (which VLC will happily play while others choke on some of them). I have another program which will only accept as input a DirectShow Source device (eg. webcam). I would like some way to create a…
Miral
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1
vote
1 answer

How to fix missing Media Foundation Microsoft AAC Audio Decoder Transform MFT Windows Server 2k8r2 sp1

I have a Windows Server 2008R2 SP1 VM that has somehow lost its Media Foundation AAC Transform. I discovered this when certain .MOVs with AAC streams were not behaving as expected. I opened TopoEdit on my Win7 development box and on the VM and…
Shanteva
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1
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0 answers

FFMPEG DirectShow: Could not run filter

I'm trying to take a picture from my webcam using FFMpeg. This is what I'm trying to run: @echo off :: Get date and time for /F "usebackq tokens=1,2 delims==" %%i in (`wmic os get LocalDateTime /VALUE 2^>NUL`) do if '.%%i.'=='.LocalDateTime.' set…
RichusX
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1
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0 answers

Localized directshow device names

On my computer device list obtained by ffmpeg looks following: Two devices before end named with garbage symbols. It is impossible to use these devices directly. How to use them then? UPDATE Trying to copy/paste... "╨б╤В╨╡╤А╨╡╨╛ ╨╝╨╕╨║╤И╨╡╤А (VIA…
Dims
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1
vote
1 answer

vlc dshow:// how to limit playback time

I want to use VLC media player to record from an USB TV receiver. I would like to schedule when to record, but calling vlc from the command line: vlc -Idummy dshow://…
Stijn Sanders
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1
vote
1 answer

webcam does not report higher resolutions on windows-10

BRIO 4K Stream webcam does not report higher resolutions on windows-10-pro machine while on windows-10-home machine everything works ok. Any idea how to troubleshoot this issue ? What i have tried so far: Take webcam driver from working machine and…
Alex
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1
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1 answer

Using ffplay to preview a USB webcam using DirectShow under Windows 10 gives black screen

When using ffplay to preview a USB webcam using DirectShow filter under Windows 10 Pro gives black screen. Tried CamDiag32 and CamDiag64, both shows quartz.dll missing but it pop an "access denied error" when I right click and choose fix. CamDiag64…
joe1203
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1
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0 answers

Nvidia Grid SDK / Capture SDK

I am trying to set-up grid for capturing OpenGl rendered screen, encoding it and streaming it on remote system. I searched for available options and realized that Nvidia capture SDK (formerly GRID SDK) will be a good option to solve all these…
MSM
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1
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1 answer

ffmpeg for windows (directshow). Where to specify options?

I think I've tried every conceivable permutation, but all I get are syntax errors. I found this example: ffmpeg -f dshow -i video="screen-capture-recorder" -f dshow -i audio="virtual-audio-capturer" output.mkv And that works... but the result is a…
bcsteeve
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1
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1 answer

DirectShow video capture as MPEG-4, with FFmpeg

When using the FFmpeg dshow module, MJPEG is used as data from the webcam. Input #0, dshow, from 'video=Logitech HD Pro Webcam C920:audio=CABLE Output (VB-Audio Virtual Cable)': Duration: N/A, start: 17980.693000, bitrate: N/A Stream #0:0:…
Brad
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1
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0 answers

DirectShow error causing non function WebCam

Recently, I found out none of my application can detect my webcam anymore (which works without any issue before). I have tried to reinstall the webcam driver and my device manager can see my webcam working properly in its list, but no other…
NachoChip
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