[FFmpeg-user] Help, cannot connect to my webcam (message : Could not RenderStream to connect pins, I/O error)

[Roger Pack]

What is your output of list_options for that device?

On 5/10/16, 김찬 <ckim at etri.re.kr> wrote:
> Yes, I could use the webcam to record the screen containing the webcam
> video.(using another solution, which could probably use ffmpeg inside).
> Chan Kim
>
> -----Original Message-----
> From: ffmpeg-user [mailto:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of Roger
> Pack
> Sent: Tuesday, May 10, 2016 10:57 PM
> To: FFmpeg user questions <ffmpeg-user at ffmpeg.org>
> Subject: Re: [FFmpeg-user] Help, cannot connect to my webcam (message :
> Could not RenderStream to connect pins, I/O error)
>
> can other programs use your lifecam?
>
> On 5/10/16, 김찬 <ckim at etri.re.kr> wrote:
>> 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:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of
>> Carl Eugen Hoyos
>> Sent: Tuesday, May 10, 2016 3:00 AM
>> To: ffmpeg-user at ffmpeg.org
>> 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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