[FFmpeg-user] Hauppauge WinTV-7164 Analog Composite/S-Video Capture

[Roger]

I've found, after searching Google, the following on Linux pulls the entire 
video+audio stream successfully:

$ cat /dev/video0 | ffplay -

or,

$ ffmpeg -i file:/dev/video0

Now to see if doing so within Windows does the same, likely omitting the "-f 
dshow", similar to omitting the "-f v4l2" on Linux.




----- Forwarded message from Roger <rogerx.oss at gmail.com> -----

Subject: Hauppauge WinTV-7164 Analog Composite/S-Video Capture
Date: Sat, 30 Apr 2022 14:50:31 -0400
From: Roger <rogerx.oss at gmail.com>
To: ffmpeg-user at ffmpeg.org

Seems I'm plagued by the same bug as described here:
https://stackoverflow.com/questions/19113197/ffmpeg-directshow-capture-2-pins


Hauppauge WinTV-7164 Analog Composite/S-Video Capture
Using this device trying to capture composite/s-video from VCR/VHS media.

dshow device: "Hauppauge WinTV-7164 Analog Capture"

(NTSC Model 2250)


This Hauppauge PCIe device, likely many Hauppuage video capture cards,
capture a video stream already combined with an audio stream.  The bug
and fix posted to stackoverflow is similar.

When specifying the following, either with/without ~Audio (pin 1), I
do get an audio stream detected, but the audio stream is null/silent:

D:\record-ffmpeg>ffplay -f dshow -rtbufsize 500M -video_size 720x480
-framerate 29.97 -audio_pin_name ~Audio -show_video_device_dialog
false -i video="Hauppauge WinTV-7164 Analog Capture":audio="Hauppauge
WinTV-7164 Analog Capture"

D:\record-ffmpeg>ffplay -f dshow -video_size 352x288 -i
video="Hauppauge WinTV-7164 Analog Capture":audio="Hauppauge
WinTV-7164 Analog Capture"
ffplay version 5.0.1-full_build-www.gyan.dev Copyright (c) 2003-2022
the FFmpeg developers
  built with gcc 11.2.0 (Rev7, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static
--disable-w32threads --disable-autodetect --enable-fontconfig
--enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp
--enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib
--enable-librist --enable-libsrt --enable-libssh --enable-libzmq
--enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2
--enable-libdav1d --enable-libdavs2 --enable-libuavs3d
--enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid
--enable-libaom --enable-libopenjpeg --enable-libvpx
--enable-mediafoundation --enable-libass --enable-frei0r
--enable-libfreetype --enable-libfribidi --enable-liblensfun
--enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf
--enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec
--enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx
--enable-libshaderc --enable-vulkan --enable-libplacebo
--enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug
--enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame
--enable-libshine --enable-libtheora --enable-libtwolame
--enable-libvo-amrwbenc --enable-libilbc --enable-libgsm
--enable-libopencore-amrnb --enable-libopus --enable-libspeex
--enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite
--enable-libmysofa --enable-librubberband --enable-libsoxr
--enable-chromaprint
  libavutil      57. 17.100 / 57. 17.100
  libavcodec     59. 18.100 / 59. 18.100
  libavformat    59. 16.100 / 59. 16.100
  libavdevice    59.  4.100 / 59.  4.100
  libavfilter     8. 24.100 /  8. 24.100
  libswscale      6.  4.100 /  6.  4.100
  libswresample   4.  3.100 /  4.  3.100
  libpostproc    56.  3.100 / 56.  3.100
[dshow @ 0000020e9bb04f00] Could not find audio only device with name
[Hauppauge WinTV-7164 Analog Capture] among source devices of type
audio.
[dshow @ 0000020e9bb04f00] Searching for audio device within video
devices for Hauppauge WinTV-7164 Analog Capture
Input #0, dshow, from 'video=Hauppauge WinTV-7164 Analog
Capture:audio=Hauppauge WinTV-7164 Analog Capture':
  Duration: N/A, start: 3738.527811, bitrate: 1536 kb/s
  Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 352x288,
29.97 fps, 29.97 tbr, 10000k tbn
  Stream #0:1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
3740.13 A-V: -0.010 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0

D:\record-ffmpeg>


It's possible the fix was, possibly a hack/workaround, specifically
applied only for certain devices such as "AJA Capture Source".  Many
Hauppauge capture cards should be added as well.

Sometimes right after booting into Windows 10, I may get ffplay to
play audio only with a blue screen.  Subsequent ffplay executions drop
audio, with a blue screen, until either Hauppauge's WinTV10 or
VirtualDub64 are subsequently executed, likely properly initializing
the video capture card.  Subsequent ffplay executions show video
properly but again without audio, only stating the video/audio stream
specifications.  Nor is the audio stream recorded to file using
ffmpeg.

----- End forwarded message -----
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: not available
URL: <https://ffmpeg.org/pipermail/ffmpeg-user/attachments/20220503/52ae5d76/attachment.sig>