页次： 1
hello,
what is the maximum resolution for video encoding you can get?
how much cpu is loaded when encoding and sending with udp?
Hello,
will this work on HI3516EV300 ?
That is strange... Do you know which part of the driver program is invoking frequently copy_to_user? I suppose using memory mapping would be a more efficent way to transfer data from the kernel to userspace, but maybe special circumtances in the driver doesn't allow that.
I don't remember exactly, but it is related with V4L2. I found it by using perf tool. I launched ffmpeg with perf command. It can record events and show cpu usage by various functions/libraries/programs. I dont have enugh skills to deal this problem
HI Mr @niyazfattahov
HAve you solved "data - cpu load 100%" problrm?
hi
no, I didn't find solution.
I think it is related with memory transaction, all I found out is that function like copy_from_user() consuming cpu ~ 40% at least
did you try it?
Hello, why libomxil-bellagio.so is listed in cmakelist? I removed him and it works fine without him.
I'm streaming 1280x720 and get low fps ~15, could you please explain me whats the reason for that? I see cpu load ~ 86%, but cannot understand whats the reason.
I use buildroot-2021.08 & linux-5.13.9, the camera is ov5640
can I encode video from camera using gst-launch?
I add this
[omxh264enc]
type-name=GstOMXH264Enc
core-name=/usr/lib/libOmxCore.so
component-name=OMX.allwinner.video.encoder.avc
rank=0
in-port-index=0
out-port-index=1
When I run
gst-launch-1.0 -vvv v4l2src device=/dev/video0 num-buffers=1000 ! 'video/x-raw, width=640, height=480, format=(string)I420' ! omx264enc ! avimux ! filesink location=videotestsrc.avi
WARNING: erroneous pipeline: no element "omx264enc"
with ffmpeg I can encode max 640x480 at ~ 53fps with cedarx codec and libcedarc from aodzip and get 100% cpu load
I found ISP support recently added for v3s, but I cannot understand where to find patch and how to apply it.
Does anybody interested in ISP module for v3s?(Image Signal Processing)
@w4dla
Can you encode 720p and higher resolution with cedarx?
Hello, what is a ipc_cedarc_venc?
where can I get it?
this is my custom buildroot defconfig, may be it can help you.
Do you select glibc in toolchain(not ulibc)?
Did you compile libcedarc at first?
BR2_arm=y
BR2_cortex_a7=y
BR2_ARM_FPU_VFPV4=y
BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
BR2_TOOLCHAIN_BUILDROOT_CXX=y
BR2_TARGET_GENERIC_HOSTNAME="licheepi-zero"
BR2_TARGET_GENERIC_ISSUE="Welcome to Buildroot for the LicheePi Zero"
BR2_TARGET_GENERIC_ROOT_PASSWD="magnesium"
BR2_TARGET_GENERIC_GETTY_PORT="ttyS0"
BR2_TARGET_GENERIC_GETTY_BAUDRATE_115200=y
BR2_ROOTFS_OVERLAY="../buildroot_additional/rootfs_overlay"
BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/licheepi/genimage.cfg"
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_DEFCONFIG="sunxi"
BR2_LINUX_KERNEL_DTS_SUPPORT=y
BR2_LINUX_KERNEL_INTREE_DTS_NAME="sun8i-v3s-licheepi-zero sun8i-v3s-licheepi-zero-dock"
BR2_PACKAGE_LINUX_TOOLS_PERF=y
BR2_PACKAGE_LINUX_TOOLS_PERF_TUI=y
BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
BR2_PACKAGE_FFMPEG=y
BR2_PACKAGE_FFMPEG_GPL=y
BR2_PACKAGE_FFMPEG_NONFREE=y
BR2_PACKAGE_FFMPEG_AVRESAMPLE=y
BR2_PACKAGE_FFMPEG_SWSCALE=y
BR2_PACKAGE_FFMPEG_EXTRACONF="--enable-omx --enable-swscale --enable-swscale-alpha --enable-filter=scale --enable muxer=segment"
BR2_PACKAGE_SPIDEV_TEST=y
BR2_PACKAGE_DOSFSTOOLS=y
BR2_PACKAGE_DOSFSTOOLS_FATLABEL=y
BR2_PACKAGE_DOSFSTOOLS_FSCK_FAT=y
BR2_PACKAGE_DOSFSTOOLS_MKFS_FAT=y
BR2_PACKAGE_EXFAT=y
BR2_PACKAGE_EXFAT_UTILS=y
BR2_PACKAGE_MTD=y
BR2_PACKAGE_MTD_DOCFDISK=y
BR2_PACKAGE_MTD_MKFSJFFS2=y
BR2_PACKAGE_MTD_TESTS=y
BR2_PACKAGE_FSWEBCAM=y
BR2_PACKAGE_SDL2=y
BR2_PACKAGE_LINUX_FIRMWARE=y
BR2_PACKAGE_LINUX_FIRMWARE_RTL_87XX=y
BR2_PACKAGE_FLASHROM=y
BR2_PACKAGE_ALSA_LIB=y
BR2_PACKAGE_LIBCEDARC=y
BR2_PACKAGE_LIBCEDARC_DECODER=y
BR2_PACKAGE_LIBCEDARC_OPENMAX=y
BR2_PACKAGE_LIBV4L=y
BR2_PACKAGE_LIBV4L_UTILS=y
BR2_PACKAGE_LIBPCAP=y
BR2_PACKAGE_POPT=y
BR2_PACKAGE_DHCP=y
BR2_PACKAGE_DHCP_SERVER=y
BR2_PACKAGE_DHCP_SERVER_DELAYED_ACK=y
BR2_PACKAGE_DHCP_RELAY=y
BR2_PACKAGE_DHCP_CLIENT=y
BR2_PACKAGE_ETHTOOL=y
BR2_PACKAGE_IPERF=y
BR2_PACKAGE_IPERF3=y
BR2_PACKAGE_OPENSSH=y
BR2_PACKAGE_SSHGUARD=y
BR2_PACKAGE_SSHPASS=y
BR2_PACKAGE_TINYSSH=y
BR2_PACKAGE_WIRELESS_TOOLS=y
BR2_PACKAGE_WIRELESS_TOOLS_LIB=y
BR2_PACKAGE_WPA_SUPPLICANT=y
BR2_PACKAGE_WPA_SUPPLICANT_AUTOSCAN=y
BR2_PACKAGE_WPA_SUPPLICANT_CLI=y
BR2_PACKAGE_WPA_SUPPLICANT_WPA_CLIENT_SO=y
BR2_PACKAGE_WPA_SUPPLICANT_PASSPHRASE=y
BR2_PACKAGE_DAEMON=y
BR2_PACKAGE_HTOP=y
BR2_PACKAGE_UTIL_LINUX=y
BR2_PACKAGE_UTIL_LINUX_LIBFDISK=y
BR2_PACKAGE_UTIL_LINUX_PARTX=y
BR2_PACKAGE_ED=y
BR2_PACKAGE_MOST=y
BR2_PACKAGE_NANO=y
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_4=y
BR2_TARGET_ROOTFS_EXT2_SIZE="200M"
BR2_TARGET_ROOTFS_JFFS2=y
BR2_TARGET_ROOTFS_JFFS2_CUSTOM=y
BR2_TARGET_ROOTFS_JFFS2_CUSTOM_EBSIZE=0x10000
BR2_TARGET_UBOOT=y
BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
BR2_TARGET_UBOOT_CUSTOM_VERSION=y
BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2019.10"
BR2_TARGET_UBOOT_BOARD_DEFCONFIG="LicheePi_Zero"
BR2_TARGET_UBOOT_NEEDS_DTC=y
BR2_TARGET_UBOOT_NEEDS_PYLIBFDT=y
BR2_TARGET_UBOOT_FORMAT_CUSTOM=y
BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME="u-boot-sunxi-with-spl.bin"
BR2_TARGET_UBOOT_BOOT_SCRIPT=y
BR2_TARGET_UBOOT_BOOT_SCRIPT_SOURCE="board/licheepi/boot.cmd"
BR2_PACKAGE_HOST_DOSFSTOOLS=y
BR2_PACKAGE_HOST_GENIMAGE=y
BR2_PACKAGE_HOST_MTOOLS=yIm using buildroot-2020.02.1
ffmpeg:
ffmpeg -f v4l2 -r 30 -t 10 -s 640x480 -i /dev/video0 -pix_fmt yuv420p -c:v h264_omx output.avi -y
@unturned3
No, I get such fps using hard codec using ffmpeg -c:v h264_omx , without cedarx I get ~ 25fps 640x480, I dont understand why so high cpu load when using cedarx
I also cannot encode 1280x720 and more due to ion memory allocation failure (I set CMA to 32MB as aodzip recommended)
@sprintf
Thank you for help, I succesfully run cedarx in linux 5.4, but I can encode 640x480 at 50fps max from ov5640 camera data - cpu load 100%. How many fps do you get ?
@unturned3
Hello, how many fps and maximum resolution do you get with cedarx from aodzip? I can encode 640x480 at ~50fps data from ov5640 using ffmpeg - CPU load 100%
Hello, which is the maximum resolution and fps can be achieved in BSP version video encoding?
Hello, what is the video maximum resolution can be encoded in bsp version for v3s?
Hello I have a problem when booting from spi like this:
U-Boot SPL 2019.10 (Jul 02 2021 - 13:04:54 +0300)
DRAM: 64 MiB
SPL: Unsupported Boot Device!
SPL: failed to boot from all boot devices
### ERROR ### Please RESET the board ###
How can this be solved?
I use this as reference and performed all steps:
http://nano.lichee.pro/build_sys/build_flash.html#id16
https://whycan.com/t_4566.html#p45289
Uboot, linux and sunxi-fel succesfully detecting spi-nor flash (w25q128).
Hello, Does anybody have success with hardware encoder CedarX from aodzip? I've compiled it in buildroot 2020.02.1 & linux-5.4.31
I see in logs when linux is booting:
[ 1.447975] sunxi-cedar 1c0e000.video-codec: sunxi cedar version 0.01alpha
[ 1.455128] sunxi-cedar 1c0e000.video-codec: cedar-ve the get irq is 23when I try use it with ffmpeg with this command:
ffmpeg -f lavfi -i testsrc=duration=2:size=1280x720:rate=30 testsrc.h264 -y
I get:
# ffmpeg -f lavfi -i testsrc=duration=2:size=1280x720:rate=30 testsrc.h264 -y
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.4.0 (Buildroot 2020.02.1)
configuration: --enable-cross-compile --cross-prefix=/home/niyaz/licheepizero_linux_build_latest/buildroot_rootfs/buildroot-2020.02.1/output/host/bin/arm-buildroot-linux-uclibcgnueabihf- --sysroot=/home/niyaz/licheepizero_linux_build_latest/buildroot_rootfs/buildroot-2020.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot --host-cc=/usr/bin/gcc --arch=arm --target-os=linux --disable-stripping --pkg-config=/home/niyaz/licheepizero_linux_build_latest/buildroot_rootfs/buildroot-2020.02.1/output/host/bin/pkg-config --disable-static --enable-shared --prefix=/usr --enable-avfilter --disable-version3 --enable-logging --enable-optimizations --disable-extra-warnings --enable-avdevice --enable-avcodec --enable-avformat --enable-network --disable-gray --enable-swscale-alpha --disable-small --enable-dct --enable-fft --enable-mdct --enable-rdft --disable-crystalhd --disable-dxva2 --enable-runtime-cpudetect --disable-hardcoded-tables --disable-mipsdsp --disable-mipsdspr2 --disable-msa --enable-hwaccels --disable-cuda --disable-cuvid --disable-nvenc --disable-avisynth --disable-frei0r --disable-libopencore-amrnb --disable-libopencore-amrwb --disable-libdc1394 --disable-libgsm --disable-libilbc --disable-libvo-amrwbenc --disable-symver --disable-doc --enable-gpl --enable-nonfree --enable-ffmpeg --disable-ffplay --enable-avresample --disable-ffprobe --disable-postproc --enable-swscale --enable-indevs --disable-alsa --enable-outdevs --enable-pthreads --enable-zlib --disable-bzlib --disable-libfdk-aac --disable-libcdio --disable-gnutls --enable-openssl --disable-libdrm --disable-libopenh264 --disable-vaapi --disable-vdpau --disable-mmal --disable-omx --disable-omx-rpi --disable-libopencv --disable-libopus --disable-libvpx --disable-libass --disable-libbluray --disable-libmfx --disable-librtmp --disable-libmp3lame --disable-libmodplug --disable-libspeex --disable-libtheora --disable-libwavpack --enable-iconv --disable-libfreetype --disable-fontconfig --disable-libopenjpeg --disable-libx264 --disable-libx265 --disable-libdav1d --disable-x86asm --disable-mmx --disable-sse --disable-sse2 --disable-sse3 --disable-ssse3 --disable-sse4 --disable-sse42 --disable-avx --disable-avx2 --enable-armv6 --enable-vfp --enable-neon --disable-altivec --extra-libs=-latomic --enable-pic --cpu=cortex-a7 --enable-omx --enable-swscale --enable-swscale-alpha --enable-filter=scale
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
Input #0, lavfi, from 'testsrc=duration=2:size=1280x720:rate=30':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 1280x720 [SAR 1:1 DAR 16:9], 30 tbr, 30 tbn, 30 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (h264_omx))
Press [q] to stop, [?] for help
[h264_omx @ 0x6d440] libOMX_Core.so not found
[h264_omx @ 0x6d440] libOmxCore.so not found
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!dts.rar
Hello, do I have right dt for ov5640 camera dvp-csi? How can I grab image/video from this camera? What kernel config should I select?
I have media-ctl v4l2. fswebcam and e.t.c.
I tried
fswebcam -r 1920x1080 img.jpg
--- Opening /dev/video0...
Trying source module v4l2...
/dev/video0 opened.
No input was specified, using the first.
Error starting stream.
VIDIOC_STREAMON: Invalid argument
Unable to use mmap. Using read instead.
Unable to use read.
I tried:
ffmpeg -f v4l2 -framerate 25 -video_size 640x480 -i /dev/video0 output.jpg
What I need to do in order to get some image/video?
How camera is configured from linux to select custom resolution?
I'm using Buildroot 2020.02.01 & linux 5.4.31
when I try to use this cedarx with ffmpeg I get:
# ffmpeg -f lavfi -i testsrc=duration=2:size=1280x720:rate=30 -c:v h264_omx testsrc.mpg -y
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.4.0 (Buildroot 2020.02.1)
configuration: --enable-cross-compile --cross-prefix=/home/niyaz/licheepizero_linux_build_latest/buildroot_rootfs/buildroot-2020.02.1/output/host/bin/arm-buildroot-linux-uclibcgnueabihf- --sysroot=/home/niyaz/licheepizero_linux_build_latest/buildroot_rootfs/buildroot-2020.02.1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot --host-cc=/usr/bin/gcc --arch=arm --target-os=linux --disable-stripping --pkg-config=/home/niyaz/licheepizero_linux_build_latest/buildroot_rootfs/buildroot-2020.02.1/output/host/bin/pkg-config --disable-static --enable-shared --prefix=/usr --enable-avfilter --disable-version3 --enable-logging --enable-optimizations --disable-extra-warnings --enable-avdevice --enable-avcodec --enable-avformat --enable-network --disable-gray --enable-swscale-alpha --disable-small --enable-dct --enable-fft --enable-mdct --enable-rdft --disable-crystalhd --disable-dxva2 --enable-runtime-cpudetect --disable-hardcoded-tables --disable-mipsdsp --disable-mipsdspr2 --disable-msa --enable-hwaccels --disable-cuda --disable-cuvid --disable-nvenc --disable-avisynth --disable-frei0r --disable-libopencore-amrnb --disable-libopencore-amrwb --disable-libdc1394 --disable-libgsm --disable-libilbc --disable-libvo-amrwbenc --disable-symver --disable-doc --enable-gpl --enable-nonfree --enable-ffmpeg --disable-ffplay --enable-avresample --disable-ffprobe --disable-postproc --enable-swscale --enable-indevs --disable-alsa --enable-outdevs --enable-pthreads --enable-zlib --disable-bzlib --disable-libfdk-aac --disable-libcdio --disable-gnutls --enable-openssl --disable-libdrm --disable-libopenh264 --disable-vaapi --disable-vdpau --disable-mmal --disable-omx --disable-omx-rpi --disable-libopencv --disable-libopus --disable-libvpx --disable-libass --disable-libbluray --disable-libmfx --disable-librtmp --disable-libmp3lame --disable-libmodplug --disable-libspeex --disable-libtheora --disable-libwavpack --enable-iconv --disable-libfreetype --disable-fontconfig --disable-libopenjpeg --disable-libx264 --disable-libx265 --disable-libdav1d --disable-x86asm --disable-mmx --disable-sse --disable-sse2 --disable-sse3 --disable-ssse3 --disable-sse4 --disable-sse42 --disable-avx --disable-avx2 --enable-armv6 --enable-vfp --enable-neon --disable-altivec --extra-libs=-latomic --enable-pic --cpu=cortex-a7 --enable-omx --enable-swscale --enable-swscale-alpha --enable-filter=scale
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
Input #0, lavfi, from 'testsrc=duration=2:size=1280x720:rate=30':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 1280x720 [SAR 1:1 DAR 16:9], 30 tbr, 30 tbn, 30 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (h264_omx))
Press [q] to stop, [?] for help
[h264_omx @ 0x6d4d0] libOMX_Core.so not found
[h264_omx @ 0x6d4d0] libOmxCore.so not found
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height页次： 1