Description:
Microsoft 32-bit development newsgroup.
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AVI
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I want to learn to write AVIs. In particular, a program in C that shows data like riffwalk and chunk.exe. And also a small video viewer. I have seen rifwalk's source in C++ and it should be fairly easy to rewrite it in C except for those namespaces at the end that use the scoping operator. I'm... more »
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Unable to enumerate any media types on my filter's pins
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I am in the process of developing a H.264 video encoder filter. I have added the following registry entries in filter project's .reg file: [HKEY_CLASSES_ROOT\Filter\{B2E 82896-5BD7-4299-B65D-8F95A011A 2E7}] @="H264 Video Encoder Filter" [HKEY_CLASSES_ROOT\CLSID\{B2E8 2896-5BD7-4299-B65D-8F95A011A2 E7}]... more »
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Changing Filtergraph from within
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I have a filter (Source Filter) inside a filtergraph not controlled by me. The application will add a MPEG 2 Demultiplexer to the filtergraph some time after my filter but will not add a MPEG Sections and Tables Filter. I need some info parsed from the MPEG 2 stream and would like to change the filtergraph to add the parser filter.... more »
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How to discover is dshow filter can be used in graph?
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I have a Samsung Omni 2 that has an H264 decoder that shipped with the phone (one of the reasons I thought I wanted it). However, after much trying and no real support from Samsung, I'm beginning to think they have this filter locked down (if possible) to their own internal use. I have a test application that captures video input and encodes using... more »
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Audio capture using winmm.lib ?
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Hi all, Under Windows XP unsing Visual C++, I need to capture on-the-fly audio data from the sound card and/or analogic line-input to a memory buffer (like a PC oscilloscope does) I tried to use 'winmm.lib' and 'mmsystem.h' and the functions of the 'waveIn' and 'waveOut' family, with no efficient result so far.... more »
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How to get current audio output and current video device
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Hi I want to get the name of audio output and current video device, but WMI may get more than 2 devices that I do not know which is the audio output or current video device, is there some good API can accomplish my requests ? Thank you .
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how can I select redording input using mcisendstring
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Hi All I'm trying to write an app that uses mciSendString to record audio. I've searched the web trying to find an example of how to allow the user to choose which input source to use. I can get a list of devices using waveInGetDevCaps. I can open some device (looks like the microphone) and record audio using mciSendString("open new... more »
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Which technology?
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I need to implement features in an existing app to: - Play as many audio and video file types as possible. - For audio files, create a waveform preview (possibly without playing the file, i.e. having to listen to it and wait until it finishes). - For video files, create a waveform and picture snapshots preview.... more »
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Get "sound device names" from "device instance Ids" programaticall
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Hi, How can I get programatically "sound device names" (XP), "friendly names" and "descriptions" (Seven) from the "device instance IDs" such as devcon shows me ? Explaining better: I have two USB handsets of the same model plugged in my PC. I already know that USB vendor ID for those handsets is 06E6, so I run... more »
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