使用ffmepg推流
Posted: 2024-06-24 2:02
由于RKIPC的延迟比较大，想使用其他方式实现推流。在使用ffmpeg的时候遇到如下问题。
设备：Luckfox Pico Ultra + SC3336 + 官方buildroot镜像
在使用RKIPC的情况下，可以通过VLC查看到视频输出后。
结束RKIPC
列出摄像头
查看/dev/video11的格式
运行ffmpeg指令
使用最简单的ffmpeg指令也是一样
报错
这个我尝试了其他/dev/video* 都是一样的结果，请帮忙看看问题出在哪里？
设备：Luckfox Pico Ultra + SC3336 + 官方buildroot镜像
在使用RKIPC的情况下，可以通过VLC查看到视频输出后。
结束RKIPC
Code: Select all
killall rkipcCode: Select all
[root@luckfox root]$ v4l2-ctl --list-devices
rkisp-statistics (platform: rkisp):
/dev/video19
/dev/video20
rkcif-mipi-lvds (platform:rkcif):
/dev/media0
rkcif (platform:rkcif-mipi-lvds):
/dev/video0
/dev/video1
/dev/video2
/dev/video3
/dev/video4
/dev/video5
/dev/video6
/dev/video7
/dev/video8
/dev/video9
/dev/video10
rkisp_mainpath (platform:rkisp-vir0):
/dev/video11
/dev/video12
/dev/video13
/dev/video14
/dev/video15
/dev/video16
/dev/video17
/dev/video18
/dev/media1
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[root@luckfox root]$ v4l2-ctl --device=/dev/video11 --all
Driver Info:
Driver name : rkisp_v7
Card type : rkisp_mainpath
Bus info : platform:rkisp-vir0
Driver version : 2.0.0
Capabilities : 0x84201000
Video Capture Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04201000
Video Capture Multiplanar
Streaming
Extended Pix Format
Media Driver Info:
Driver name : rkisp-vir0
Model : rkisp0
Serial :
Bus info :
Media version : 5.10.110
Hardware revision: 0x00000000 (0)
Driver version : 5.10.110
Interface Info:
ID : 0x03000007
Type : V4L Video
Entity Info:
ID : 0x00000006 (6)
Name : rkisp_mainpath
Function : V4L2 I/O
Pad 0x01000009 : 0: Sink
Link 0x0200000a: from remote pad 0x1000004 of entity 'rkisp-isp-subdev' (Unknown V4L2 Sub-Device): Data, Enabled
Priority: 2
Format Video Capture Multiplanar:
Width/Height : 2304/1296
Pixel Format : 'NV12' (Y/CbCr 4:2:0)
Field : None
Number of planes : 1
Flags :
Colorspace : Default
Transfer Function : Default
YCbCr/HSV Encoding: Default
Quantization : Full Range
Plane 0 :
Bytes per Line : 2304
Size Image : 4478976
Selection Video Capture: crop, Left 0, Top 0, Width 2304, Height 1296, Flags:
Selection Video Capture: crop_bounds, Left 0, Top 0, Width 2304, Height 1296, Flags:
Selection Video Output: crop, Left 0, Top 0, Width 2304, Height 1296, Flags:
Selection Video Output: crop_bounds, Left 0, Top 0, Width 2304, Height 1296, Flags:
Image Processing Controls
pixel_rate 0x009f0902 (int64) : min=0 max=1000000000 step=1 default=1000000000 value=101250000 flags=read-only, volatile
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[root@luckfox root]$ ffmpeg -f v4l2 -input_format nv12 -video_size 2304x1296 -i /dev/video11 -c:v libx264 -b:v 2000k -f flv rtmp://192.168.11.16/live/0
ffmpeg version 4.4.4 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 8.3.0 (crosstool-NG 1.24.0)
configuration: --enable-cross-compile --cross-prefix=/opt/luckfox-pico/sysdrv/source/buildroot/buildroot-2023.02.6/output/host/bin/arm-rockchip830-linux-uclibcgnueabihf- --sysroot=/opt/luckfox-pico/sysdrv/source/buildroot/buildroot-2023.02.6/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot --host-cc=/usr/bin/gcc --arch=arm --target-os=linux --disable-stripping --pkg-config=/opt/luckfox-pico/sysdrv/source/buildroot/buildroot-2023.02.6/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 --disable-gpl --disable-nonfree --enable-ffmpeg --enable-ffplay --enable-libv4l2 --enable-avresample --enable-ffprobe --disable-libxcb --disable-postproc --enable-swscale --enable-indevs --enable-alsa --enable-outdevs --enable-pthreads --enable-zlib --disable-bzlib --disable-libfdk-aac --disable-libcdio --enable-gnutls --disable-openssl --disable-libdrm --disable-libopenh264 --disable-vaapi --disable-vdpau --disable-mmal --disable-omx --disable-omx-rpi --disable-libopencv --disable-libopus --disable-libvpx --enable-libass --disable-libbluray --disable-libmfx --disable-librtmp --disable-libmp3lame --disable-libmodplug --disable-libspeex --disable-libtheora --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
libavutil 56. 70.100 / 56. 70.100
libavcodec 58.134.100 / 58.134.100
libavformat 58. 76.100 / 58. 76.100
libavdevice 58. 13.100 / 58. 13.100
libavfilter 7.110.100 / 7.110.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 9.100 / 5. 9.100
libswresample 3. 9.100 / 3. 9.100
[video4linux2,v4l2 @ 0x5269b0] Not a video capture device.
/dev/video11: No such device
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ffmpeg -f v4l2 -i /dev/video11 output.mp4
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[video4linux2,v4l2 @ 0x4e6950] Not a video capture device.
/dev/video11: No such device