How to capture video stream from camera from multiple programs?

M

Michael Galyuk2013-06-19 18:44:25

linux

Michael Galyuk, 2013-06-19 18:44:25

How to allow multiple programs to use the camera at the same time in Linux? Or is it basically impossible?
I'm using Gstreamer, a V4L component. The first program starts, and the second one fails with the error " system error: Device or resource busy ": Looked at the parameters of the v4l2src

$ gst-launch v4l2src ! xvimagesink Установка конвейера в состояние PAUSED... ОШИБКА: Конвейер не хочет становиться на паузу. ПРЕДУПРЕЖДЕНИЕ: от элемента /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Устройство видео-захвата не приняло новый параметр кадровой частоты. Дополнительная отладочная информация: v4l2src_calls.c(262): gst_v4l2src_set_capture (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: system error: Устройство или ресурс занято ОШИБКА: из элемента /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not get buffers from device '/dev/video0'. Дополнительная отладочная информация: gstv4l2bufferpool.c(406): gst_v4l2_buffer_pool_new (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: error requesting 2 buffers: Устройство или ресурс занято Установка конвейера в состояние NULL... Освобождение конвейера...

component , but did not understand how to overcome the problem?

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1 answer(s)

S

stavinsky, 2013-07-02
@stavinsky

Why not convert this video to some network streaming format like RTMP and shoot for as long as you want and with what you want?