Search found 11 matches

by sambul92
Fri Jul 17, 2015 2:29 pm
Forum: User Announcements
Topic: DirectShow Capture support for C930e webcam
Replies: 18
Views: 17527

Re: DirectShow Capture support for C930e webcam

So basically it doesn't advertise "normal" h264 media type, only mjpg? In this regard C930e is similar to C920 that also doesn't advertise much formats for Capture 1 pin, yet ffmpeg was updated to list whatever it streams from that pin properly. :) Its interesting that modern UI Windows Camera App ...
by sambul92
Thu Jul 16, 2015 11:16 pm
Forum: User Announcements
Topic: DirectShow Capture support for C930e webcam
Replies: 18
Views: 17527

Re: DirectShow Capture support for C930e webcam

Hi dalbani , Useful results. Lets set aside SVC and MJPG for now, and look into H264 UVC 1.5 native stream only. Can you add Audio Capture filter in GraphStudioNext, and see what pins & formats does this webcam offer? Is it capable of streaming AAC, or only PCM? Don't forget to enable its Mic in Win...
by sambul92
Sun Jul 12, 2015 12:38 pm
Forum: User Announcements
Topic: DirectShow Capture support for C930e webcam
Replies: 18
Views: 17527

Re: DirectShow Capture support for C930e webcam

Hello, Has anyone had any success with the Logitech C930? There's a discussion on StackOverflow that matches with my own experience: it doesn't work (correctly). Or at least we only get access to the raw and (hackish) H.264-in-MJPEG streams, but no standard H.264 stream. And I'm not even talking of...
by sambul92
Sun Jul 12, 2015 12:06 pm
Forum: User Announcements
Topic: DirectShow Capture support for C930e webcam
Replies: 18
Views: 17527

Re: DirectShow Capture support for C930e webcam

The following was posted so far by various folks: If the camera exposes H.264 capture caps "the standard way", you should be able to see it by enumerating its capabilities. One of the ways to see it is DirectShowCaptureCapabilities tool showing everything you have programmatically via IAMStreamConfi...
by sambul92
Sat Jul 11, 2015 12:26 am
Forum: User Announcements
Topic: DirectShow Capture support for C930e webcam
Replies: 18
Views: 17527

Re: DirectShow Capture support for C930e webcam

For C930e Logitech doesn't offer drivers or software, completely relying on Windows UVC drivers and apps support such as latest Skype and MS Lync 2013 (thought its WHQL driver might be distributed via Windows Update?). As posted here, C930e video interfaces are tricky: - for the webcam to be support...
by sambul92
Fri Jul 10, 2015 7:06 pm
Forum: User Announcements
Topic: DirectShow Capture support for C930e webcam
Replies: 18
Views: 17527

Re: DirectShow Capture support for C930e webcam

Would be nice to have this webcam fully supported by ffmpeg. I found corresponding standards can be downloaded here: USB Video Class 1.5 and 1.1 USB_Video_Payload_H 264_1 0 (H264 / MJPEG Hack) Also interesting interface test tool output results in Win 8 for the webcam were found: - USBTree log - Dir...
by sambul92
Fri Apr 10, 2015 10:14 pm
Forum: FFmpeg Examples
Topic: Webcam Stream Capture with Preview
Replies: 3
Views: 21763

Re: Webcam Stream Capture with Preview

To cut on CPU load, I copied latest mplayer.exe from MPlayer package to FFMpeg bin directory. CPU usage dropped to 6% at copy to file + no delay preview. But Mplayer also seems to use FFMpeg (rawvideo) to decode the stream, so why lower CPU load here? Mplayer default colorspace conversion results in...
by sambul92
Fri Apr 10, 2015 12:46 am
Forum: FFmpeg Examples
Topic: Webcam Stream Capture with Preview
Replies: 3
Views: 21763

Webcam Stream Capture with Preview

I wanted to compare effectiveness of a few known FFMpeg methods to capture a webcam stream to file and preview it simultaneously, using Logitech C910 USB2.0 webcam as an example with its video & audio module names taken from Windows Device Manager. Given below dshow stream handling CLI working examp...
by sambul92
Thu Apr 02, 2015 5:47 pm
Forum: User Announcements
Topic: DirectShow Capture support
Replies: 168
Views: 154550

Re: DirectShow Capture support

The only way I can think of it to split it to an SDL out window, or split it to something outputting jpeg's and display the jpeg's back. I posted Webcam Stream Capture with Preview CDL examples here . I was looking for working CDL for quite awhile, so sure it will help novices. At the same time, CP...
by sambul92
Wed Apr 01, 2015 10:28 pm
Forum: User Announcements
Topic: DirectShow Capture support
Replies: 168
Views: 154550

Re: DirectShow Capture support

I tested with C910 webcam, and -c or -codec option works well to capture mjpeg compressed video and PCM audio to mkv without transcoding. Couldn't test with c920 at the moment. ffmpeg -s 1280x720 -framerate 30 -vcodec mjpeg -rtbufsize 100MB -f dshow -i video="Logitech HD Pro Webcam C910":audio="Micr...
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