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Questions tagged [ffdshow]

ffdshow is DirectShow and VFW codec for decoding/encoding many video and audio formats, including DivX and XviD movies using libavcodec, xvid and other opensourced libraries with a rich set of postprocessing filters.

ffdshow is DirectShow and VFW codec for decoding/encoding many video and audio formats, including DivX and XviD movies using libavcodec, xvid and other opensourced libraries with a rich set of postprocessing filters.

34 questions
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FFmpeg dshow device format list

I would like to ask is there any option for getting dshow device format list on Windows. For example on Linux I am able to get device format list on Linux via v4l2-ctl -i /dev/video0 --list-formats Index : 0 Type : Video Capture Pixel…
user1722669
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Controlling ffdshow from .Net

ffdshow has this awesome little API for controlling playback of video files. It allows you to change subtitles, fast forward, get the name of the file playing, etc... Its implemented as a windows message loop that accepts user messages and posts…
Sam Saffron
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Capturing 48 kHz audio with FFmpeg and DirectShow (dshow input)

I tried to capture audio with 48 kHz in FFmpeg, the code as below: AVInputFormat* ifmt = av_find_input_format("dshow"); CHECK_POINTER_RETURN_VALUE(ifmt, false) pFmtCtx = avformat_alloc_context(); CHECK_POINTER_RETURN_VALUE(pFmtCtx,…
TONY
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Improve ffmpeg CPU usage by compromising quality

I am using FFMpeg for screen capturing. I am looking for a screen capturing tool that will run on 1000 of VMs (windows and mac).The VMs have limited CPU (1 core) and 2GB ram and No GPU. Currently I invoke ffmpeg with ffmpeg -y -framerate 8 -f dshow…
Hardik Juneja
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RTSP H.264 IP camera as video source/input in windows

I'm currently stuck with this problem and I hope somebody can help me out. I'm trying to create some sort of decoder that will convert a video stream that will act as a video input device so I can use it in Wirecast (video streaming program). At…
Story Teller
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Reducing FFMPEG h264 video stream latency

I'm using FFMPEG(h264) and I want to reduce latency as much as possible. Now it's about 700 ms and I can't really make it lower. I tried almost all, so maybe anyone has idea how to help me? ffmpeg -f dshow -i video="screen-capture-recorder"…
KKKk
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Enable QSV for FFmpeg with directshow input and JPEG image sequence output

I'm using FFmpeg with Directshow input. The output is a series of single JPEG images. FFmpeg itself maps the stream to mjpeg and uses image2 for the output. Is it possible to increase performance by using the Intel QuickSync Video (QSV) hardware…
clic
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Buffer starvation inside MS Mpeg-2 Demultiplexer filter

My capture graph is dying. I have traced the problem to a media-sample buffer starvation inside the Microsoft Mpeg-2 Demultiplexer filter. Processing stops inside CBaseAllocator::GetBuffer. The pool is exhausted and the thread sleeps waiting…
BlueStrat
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System.InvalidCastException on FFDShow Video Decoder on "Standard User" account

Exception: Unable to cast COM object of type 'System.__ComObject' to interface type 'DirectShowLib.IBaseFilter'. This operation failed because the QueryInterface call on the COM component for the interface with IID…
Michael Chi Lam
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AVFrame has a negative linesize

I am using libav (2.7 built for MSVC) to open a camera using dshow: input_format = av_find_input_format("dshow"); avformat_open_input(format_context, "video=Integrated Camera", input_format, 0); When I open the video stream it is "raw video"…
Chris
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How can I convert avi to mp4 using graphedit and ffdshow?

I´m working on an application based on directshow that has to convert an AVI source file to to an mp4-file that can be played back with Quicktime. Since 3ivx, according to my web research the most popular way to fulfill this task, has become…
user1032360
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How to use ffdshow with WPF-Mediakit

By default LAV Decoder, but I'd like to use ffdshow with hardware acceleration for decoding. I saw these lines in the file ClassId.cs public static readonly Guid FFDShowVideo = new Guid("04FE9017-F873-410e-871E-AB91661A4EF7"); public static…
Rust
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No new codecs in TeamViewer converter

Windows 8.1 x64 TeamViewer .tvs convert option: https://snag.gy/uPAFTH.jpg 1. MJPEG Compressor 2. Cinepak Codec by Radius 3. Intel IYUV codec 4. Intel IYUV codec 5. Mircorosft RLE 6. Microsoft Video 1 only few ('windows standard') codecs list I…
abikar
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Force Windows 7 to prefer its own Microsoft MJPG codec for MJPG files?

I'm installing a system with Windows 7 x64. This system needs to be able to play .AVI files encoded with the Mjpeg codec ("MJPG") I've noticed that "out of the box", Windows can play these files just fine. But after I install Quicktime 7, which I…
Ken Quad
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making a python gui for ffdshow

I was thinking that for a learning project for myself, I would try to make a GUI for ffdshow on linux, using tkinter. Wanted to make sure this project would be feasible first, before I get halfway through and run into something that cant be done in…
Kefka
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