jyce

Same for me with 3 differents HDMI -> VGA converter, powered or unpowered. I finaly fixe the problem : # apt-get install read-edid edid-decode # cat /sys/class/drm/card0-HDMI-A-1/edid > /tmp/test-edid.bin # parse-edid < /tmp/test-edid.bin Checksum Correct Section "Monitor" Identifier "DELL SE198WFPª" ModelName "DELL SE198WFPª" VendorName "DEL" # Monitor Manufactured week 34 of 2007 # EDID version 1.3 # Digital Display DisplaySize 410 260 Gamma 2.20 Option "DPMS" "true" Horizsync 30-83 VertRefresh 56-75 # Maximum pixel clock is 140MHz #Not giving standard mode: 1440x900, 60Hz #Not giving standard mode: 1152x864, 75Hz #Not giving standard mode: 1280x1024, 60Hz #Not giving standard mode: 1440x900, 75Hz #Extension block found. Parsing... extb[4]: 0x23 (0x20) Hmm, you have data blocks, but not video ones... weird I have force the mode reported by the converter (or your HDMI screen) in /boot/armbianEnv.txt In my case i add the line: extraargs=video=HDMI-A-1:1280x1024@60 power off / wait few seconds / power on OrangePi5+ boot in 6.10.6-current-rockchip-rk3588 and my video are back. Regards, JC

I use this version https://github.com/nyanmisaka/ffmpeg-rockchip of ffmpeg with Orange Pi5+ (rockchip-rk3588) Linux Debian. For my test, the input.mp4 file is a 60 second recording from rtsp Reolink h264 Camera. % ffmpeg -i input.mp4 -c:v h264_rkmpp -c:a aac -y output-h264.mp4 Input: Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 2560x1920, 8348 kb/s, 29.72 fps, 30 tbr, 90k tbn (default) Output: Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 2560x1920, q=2-31, 2000 kb/s, 30 fps, 15360 tbn (default) frame= 1804 fps=131 q=-0.0 Lsize= 15327kB time=00:01:00.10 bitrate=2089.1kbits/s dup=20 drop=1 speed=4.38x % ffmpeg -i input.mp4 -c:v hevc_rkmpp -c:a aac -y output-hevc.mp4 Input: Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 2560x1920, 8348 kb/s, 29.72 fps, 30 tbr, 90k tbn (default) Output: Stream #0:0(und): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(progressive), 2560x1920, q=2-31, 2000 kb/s, 30 fps, 15360 tbn (default) frame= 1804 fps=128 q=-0.0 Lsize= 15299kB time=00:01:00.10 bitrate=2085.3kbits/s dup=20 drop=1 speed=4.26x % du -b input.mp4 output-h264.mp4 output-hevc.mp4 63077390 input.mp4 15913277 output-h264.mp4 15978009 output-hevc.mp4 The rate of hardware encoding is around 130 fps with h264_rkmpp or hevc_rkmpp. From a human perspective, there's no video quality difference between these files.