我有一张 Elgato Video Capture V2 采集卡，我想用它来采集 S 视频。遗憾的是，当我使用 tvime 捕获时，输出显示为黑白。我也使用奶酪进行了测试，输出也是黑白的。将 S-Video 插入我的电视即可获得全彩。
这是我开始捕获时的 dmesg：
[ 1481.271451] cx231xx #0: cx231xx_stop_stream():: ep_mask = 8
[ 1594.616110] cx231xx #0: setPowerMode::mode = 48, No Change req.
[ 1594.638896] cx231xx #0: cx231xx_dif_set_standard: setStandard to ffffffff
[ 1594.683447] cx231xx #0: video_mux : 0
[ 1594.683450] cx231xx #0: do_mode_ctrl_overrides : 0x1000
[ 1594.684200] cx231xx #0: do_mode_ctrl_overrides NTSC
[ 1594.697050] cx231xx #0: cx231xx_stop_stream():: ep_mask = 8
[ 1594.697271] cx231xx #0: cx231xx_initialize_stream_xfer: set video registers
[ 1594.697393] cx231xx #0: cx231xx_start_stream():: ep_mask = 8
[ 1594.715842] cx231xx #0: cx231xx_dif_set_standard: setStandard to ffffffff
[ 1594.761930] cx231xx #0: video_mux : 1
[ 1594.761931] cx231xx #0: do_mode_ctrl_overrides : 0x1000
[ 1594.762680] cx231xx #0: do_mode_ctrl_overrides NTSC
[ 1597.492394] cx231xx #0: cx231xx_stop_stream():: ep_mask = 8
还，
$ tvtime -v
Running tvtime 1.0.2.
Reading configuration from /etc/tvtime/tvtime.xml
Reading configuration from /home/llldino/.tvtime/tvtime.xml
cpuinfo: CPU Intel(R) Core(TM) i5-4690K CPU @ 3.50GHz, family 6, model 12, stepping 3.
cpuinfo: CPU measured at 184296045375450.094MHz.
tvtime: Cannot set priority to -10: Permission denied.
xcommon: Display :0.0, vendor The X.Org Foundation, vendor release 11604000
xfullscreen: Using XINERAMA for dual-head information.
xfullscreen: Pixels are square.
xfullscreen: Number of displays is 2.
xfullscreen: Head 0 at 0,0 with size 1920x1080.
xfullscreen: Head 1 at 1920,0 with size 1920x1080.
xcommon: Have XTest, will use it to ping the screensaver.
xcommon: Pixel aspect ratio 1:1.
xcommon: Pixel aspect ratio 1:1.
xcommon: Window manager is Xfwm4 and is EWMH compliant.
xcommon: Using EWMH state fullscreen property.
xcommon: Using EWMH state above property.
xcommon: Using EWMH state below property.
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 768x576 window inside 768x576 space.
xvoutput: Using XVIDEO adaptor 601: NV17 Video Texture.
speedycode: Using MMXEXT optimized functions.
station: Reading stationlist from /home/llldino/.tvtime/stationlist.xml
videoinput: Using video4linux2 driver 'cx231xx', card 'Elgato Video Capture V2' (bus usb-0000:00:14.0-10).
videoinput: Version is 200711, capabilities 85000011.
videoinput: Can't get tuner info: Inappropriate ioctl for device
videoinput: Maximum input width: 720 pixels.
videoinput: Can't get tuner info: Inappropriate ioctl for device
tvtime: Sampling input at 720 pixels per scanline.
mixer: Can't open device /dev/mixer, mixer volume and mute unavailable.
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 768x576 window inside 768x576 space.
xcommon: Received a map, marking window as visible (60).
如果有人可以帮助我，我将非常感激。我将在我的 Twitch 页面上向您致以永久的感谢！
答案1
我刚刚在使用 Elgato 采集卡将 S 视频输出为黑白时遇到了麻烦。
我最终将 Elgato 软件设置切换为“复合”而不是 S-video，然后更改了电缆输入，使黄色连接变为红色，现在可以完美地使用彩色！