Thanks Carl,
Here is the output. I gave the recording command (ffmpeg -f dshow -i
video="..." test.mp4) while I was streaming the web cam video using LifeCam
player.(displaying the camera on my notebook).
D:\ffmpeg-20160508-git-38eeb85-win64-static\bin
>ffmpeg -list_devices true -f dshow -i dummy
ffmpeg version N-79883-g38eeb85 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme
--enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmfx
--enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger
--enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
--enable-libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 24.100 / 55. 24.100
libavcodec 57. 40.100 / 57. 40.100
libavformat 57. 36.100 / 57. 36.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 45.100 / 6. 45.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
[dshow @ 00000000004ca940] DirectShow video devices (some may be both video and
audio devices)
[dshow @ 00000000004ca940] "Microsoft LifeCam VX-6000"
[dshow @ 00000000004ca940] Alternative name
"@device_pnp_\\?\usb#vid_045e&pid_00f4&mi_00#7&1628b7e9&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global"
[dshow @ 00000000004ca940] "Webcam SC-13HDL11624N"
[dshow @ 00000000004ca940] Alternative name
"@device_pnp_\\?\usb#vid_2232&pid_1024&mi_00#7&2dcaa785&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global"
[dshow @ 00000000004ca940] DirectShow audio devices
[dshow @ 00000000004ca940] "마이크(2- Microsoft LifeCam VX-600"
[dshow @ 00000000004ca940] Alternative name
"@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\마이크(2- Microsoft LifeCam
VX-600"
[dshow @ 00000000004ca940] "마이크(Realtek High Definition Aud"
[dshow @ 00000000004ca940] Alternative name
"@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\마이크(Realtek High Definition
Aud"
dummy: Immediate exit requested
D:\ffmpeg-20160508-git-38eeb85-win64-static\bin
>ffmpeg -f dshow -i video="Microsoft LifeCam VX-6000" test.mp4
ffmpeg version N-79883-g38eeb85 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme
--enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmfx
--enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger
--enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
--enable-libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 24.100 / 55. 24.100
libavcodec 57. 40.100 / 57. 40.100
libavformat 57. 36.100 / 57. 36.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 45.100 / 6. 45.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
[dshow @ 000000000041a9a0] Could not RenderStream to connect pins
video=Microsoft LifeCam VX-6000: I/O error
D:\ffmpeg-20160508-git-38eeb85-win64-static\bin
-----Original Message-----
From: ffmpeg-user [mailto:[email protected]] On Behalf Of Carl
Eugen Hoyos
Sent: Tuesday, May 10, 2016 3:00 AM
To: [email protected]
Subject: Re: [FFmpeg-user] Help, cannot connect to my webcam (message : Could
not RenderStream to connect pins, I/O error)
김찬 <ckim <at> etri.re.kr> writes:
> to see the web cam is recognized by ffmpeg. (It read "Microsoft
> LifeCam VX-6000")
>
> So I endtered to record the screen,
>
> > ffmpeg -f dshow -i video="Microsoft LifeCam VX-6000" test.mp4
Please provide your failing command line together with the complete, uncut
console output, use copy-paste, do not attach screenshots.
Carl Eugen
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