alubian Posted October 19, 2018 Posted October 19, 2018 I've installed Armbian on the SD card for X96mini ( 1GB/8GB ). I only would like to get USB-cam video ( MJPEG/30FPS 1920x080 or 1280x720 ) to hdmi display. But I don't know where to begin with the solving of some issues: 1) S905W should support 4x2GHz cores, but cpufreq-info "says", that 1,2GHz is max. possible clock frequency 2) if I start mplayer with -vo null the USB seems to be to slow. I've got max 10-20 fps. On the PC I get about 30 fps with 1920x1080. ( AUSDOM 620pro ) 3) The less number of picture per seconds looks also not very good on tv screen ( very slow ). I tried with mplayer -vo fbdev 4) I've tried also under X11 with qv4l2 example. Compiled directly on this player -> also very slow. Some, advices for arm-beginner? Thanx for your help. Following kernel modules are installed ( lsmod ) Module Size Used by btrfs 1077248 0 xor 20480 1 btrfs raid6_pq 102400 1 btrfs mali 274432 0 Is "mali" an module for HW acceleration? MPlayer 1.2.1 (Debian), built with gcc-5.4.0 (C) 2000-2016 MPlayer Team Available video output drivers: vdpau VDPAU with X11 xv X11/Xv gl_nosw OpenGL no software rendering x11 X11 ( XImage/Shm ) xover General X11 driver for overlay capable video output drivers sdl SDL YUV/RGB/BGR renderer (SDL v1.1.7+ only!) gl OpenGL gl_tiled X11 (OpenGL) - multiple textures version dga DGA ( Direct Graphic Access V2.0 ) fbdev Framebuffer Device fbdev2 Framebuffer Device matrixview MatrixView (OpenGL) aa AAlib caca libcaca v4l2 V4L2 MPEG Video Decoder Output directfb Direct Framebuffer Device dfbmga DirectFB / Matrox G200/G400/G450/G550 null Null video output xvmc XVideo Motion Compensation mpegpes MPEG-PES to DVB card yuv4mpeg yuv4mpeg output for mjpegtools png PNG file jpeg JPEG file gif89a animated GIF output tga Targa output pnm PPM/PGM/PGMYUV file md5sum md5sum of each frame
Igor Posted October 21, 2018 Posted October 21, 2018 On 10/19/2018 at 3:58 PM, alubian said: S905W should support 4x2GHz cores To answer at least a part of your questions. Amlogic is cheating you - reality is this:https://forum.armbian.com/topic/7042-amlogic-still-cheating-with-clockspeeds/?tab=comments#comment-53130 MALI is 3D engine. It doesn't help here. You need something else.
alubian Posted October 23, 2018 Author Posted October 23, 2018 Is there any chance to get smooth 30 frames per second ( min. 720p ) with the USB-camera on S905W ( 1.2 GHz )? How to check if the USB performance is enough fast? I mean: reading of the USB video stream without playing it.
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