[视频编码]rkmpp 实现硬件编码

mpi_enc_test的命令参数描述说明

命令参数的描述说明如下：

命令参数	描述说明
-i	输入的图像文件。
-o	输出的码流文件。
-w	图像宽度，单位为像素。
-h	图像高度，单位为像素。
-hstride	垂直方向相邻两行之间的距离，单位为byte。
-vstride	图像分量之间的以行数间隔数，单位为1。
-f	图像色彩空间格式以及内存排布方式，默认为NV12。
-t	码流文件的协议类型。
-tsrc	源码流格式，仅在测试整体编解码性能时使用。
-n	最大解码帧数。测试时若码流较长，可仅输出前n帧。
-g	gop参考模式，对应不同的TSVC码流。
-rc	码率控制模式。0:VBR; 1:CBR; 2:FIXQP; 3:AVBR。
-bps	码率约束参数。命令格式：bps_target:bps_min:bps_max。
-fps	输入/输出帧率控制，默认为30。该命令参数仅说明输入帧率和输出帧率之间的比例关系，与实际帧率无关。
-qc	质量控制。
-s	MPP实例数，默认为1。
-v	日志选项：q为静默标志；f为fps显示标志。
-ini	额外的编码配置文件ini（暂未生效）。
-slt	输出码流对应的校验文件。

查看摄像头的图片格式

cat@lubancat:~/test/mpp/build/linux/aarch64/test$ v4l2-ctl -d /dev/video1 --all
Driver Info:Driver name      : uvcvideoCard type        : YJX-YL7: YJX-YL7Bus info         : usb-xhci-hcd.9.auto-1Driver version   : 5.10.160Capabilities     : 0x84a00001Video CaptureMetadata CaptureStreamingExtended Pix FormatDevice CapabilitiesDevice Caps      : 0x04200001Video CaptureStreamingExtended Pix Format
Media Driver Info:Driver name      : uvcvideoModel            : YJX-YL7: YJX-YL7Serial           : 20240514001Bus info         : usb-xhci-hcd.9.auto-1Media version    : 5.10.160Hardware revision: 0x00000001 (1)Driver version   : 5.10.160
Interface Info:ID               : 0x03000002Type             : V4L Video
Entity Info:ID               : 0x00000001 (1)Name             : YJX-YL7: YJX-YL7Function         : V4L2 I/OFlags         : defaultPad 0x01000007   : 0: Sink
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:Width/Height      : 1280/720Pixel Format      : 'YUYV' (YUYV 4:2:2)Field             : NoneBytes per Line    : 2560Size Image        : 1843200Colorspace        : sRGBTransfer Function : Rec. 709YCbCr/HSV Encoding: ITU-R 601Quantization      : Default (maps to Limited Range)Flags             : 
Crop Capability Video Capture:Bounds      : Left 0, Top 0, Width 1280, Height 720Default     : Left 0, Top 0, Width 1280, Height 720Pixel Aspect: 1/1
Selection Video Capture: crop_default, Left 0, Top 0, Width 1280, Height 720, Flags: 
Selection Video Capture: crop_bounds, Left 0, Top 0, Width 1280, Height 720, Flags: 
Streaming Parameters Video Capture:Capabilities     : timeperframeFrames per second: 10.000 (10/1)Read buffers     : 0brightness 0x00980900 (int)    : min=0 max=255 step=1 default=128 value=128contrast 0x00980901 (int)    : min=0 max=255 step=1 default=45 value=45saturation 0x00980902 (int)    : min=0 max=100 step=1 default=70 value=70hue 0x00980903 (int)    : min=-180 max=180 step=1 default=0 value=0white_balance_temperature_auto 0x0098090c (bool)   : default=1 value=1gamma 0x00980910 (int)    : min=90 max=150 step=1 default=120 value=120gain 0x00980913 (int)    : min=0 max=128 step=1 default=75 value=75power_line_frequency 0x00980918 (menu)   : min=0 max=2 default=1 value=10: Disabled1: 50 Hz2: 60 Hzwhite_balance_temperature 0x0098091a (int)    : min=2800 max=6500 step=10 default=4600 value=4600 flags=inactivesharpness 0x0098091b (int)    : min=0 max=7 step=1 default=6 value=6backlight_compensation 0x0098091c (int)    : min=0 max=2 step=1 default=0 value=0exposure_auto 0x009a0901 (menu)   : min=0 max=3 default=3 value=31: Manual Mode3: Aperture Priority Modeexposure_absolute 0x009a0902 (int)    : min=2 max=1250 step=1 default=156 value=156 flags=inactiveexposure_auto_priority 0x009a0903 (bool)   : default=0 value=1

捕获为h264

cat@lubancat:~/test/mpp/build/linux/aarch64/test$ mpi_enc_test -w 1280 -h 720 -t 7 -f 8  -fps 15 -i /dev/video1 -o ./out.h624
注意这里命令-i是可以输入文件，或者是摄像头结点的。很多文章没有说明

    if (cmd->file_input) {if (!strncmp(cmd->file_input, "/dev/video", 10)) {mpp_log("open camera device");p->cam_ctx = camera_source_init(cmd->file_input, 4, p->width, p->height, p->fmt);mpp_log("new framecap ok");if (p->cam_ctx == NULL)mpp_err("open %s fail", cmd->file_input);} else {p->fp_input = fopen(cmd->file_input, "rb");if (NULL == p->fp_input) {mpp_err("failed to open input file %s\n", cmd->file_input);mpp_err("create default yuv image for test\n");}}}

查看rkmpp日志

cat@lubancat:~$ sudo tail -f /var/log/syslog

Mar  8 23:37:58 lubancat mpp[136462]: mpp_opt: setup:real node 67:71 info 22:22
Mar  8 23:37:58 lubancat mpp[136462]: mpi_enc_utils: cmd parse result:
Mar  8 23:37:58 lubancat mpp[136462]: mpi_enc_utils: input  file name: /dev/video1
Mar  8 23:37:58 lubancat mpp[136462]: mpi_enc_utils: output file name: ./out.h624
Mar  8 23:37:58 lubancat mpp[136462]: mpi_enc_utils: width      : 1280
Mar  8 23:37:58 lubancat mpp[136462]: mpi_enc_utils: height     : 720
Mar  8 23:37:58 lubancat mpp[136462]: mpi_enc_utils: format     : 8
Mar  8 23:37:58 lubancat mpp[136462]: mpi_enc_utils: type       : 7
Mar  8 23:37:58 lubancat mpp[136462]: mpi_enc_test: mpi_enc_test start
Mar  8 23:37:58 lubancat mpp[136462]: mpi_enc_test: open camera device
Mar  8 23:37:59 lubancat mpp[136462]: camera_source: input devices:Camera 1
Mar  8 23:37:59 lubancat mpp[136462]: camera_source: fmt name: [Motion-JPEG]
Mar  8 23:37:59 lubancat mpp[136462]: camera_source: fmt pixelformat: 'MJPG', description = 'Motion-JPEG'
Mar  8 23:37:59 lubancat mpp[136462]: camera_source: fmt name: [YUYV 4:2:2]
Mar  8 23:37:59 lubancat mpp[136462]: camera_source: fmt pixelformat: 'YUYV', description = 'YUYV 4:2:2'
Mar  8 23:37:59 lubancat mpp[136462]: camera_source: get width 1280 height 720
Mar  8 23:37:59 lubancat mpp[136462]: camera_source: get dma buf(0)-fd: 13
Mar  8 23:37:59 lubancat mpp[136462]: camera_source: get dma buf(1)-fd: 14
Mar  8 23:37:59 lubancat mpp[136462]: camera_source: get dma buf(2)-fd: 15
Mar  8 23:37:59 lubancat mpp[136462]: camera_source: get dma buf(3)-fd: 16
Mar  8 23:37:59 lubancat mpp[136462]: mpi_enc_test: new framecap ok
Mar  8 23:37:59 lubancat mpp[136462]: mpp_info: mpp version: ed377c99 author: Herman Chen   2023-12-14 fix[hal_enc]: Add encoder internal buffer sync
Mar  8 23:37:59 lubancat mpp[136462]: mpi_enc_test: 0x7f84002580 encoder test start w 1280 h 720 type 7
Mar  8 23:37:59 lubancat mpp[136462]: mpp_enc: MPP_ENC_SET_RC_CFG bps 1728000 [108000 : 1836000] fps [15:15] gop 30
Mar  8 23:37:59 lubancat mpp[136462]: h264e_api_v2: MPP_ENC_SET_PREP_CFG w:h [1280:720] stride [2560:720]
Mar  8 23:37:59 lubancat mpp[136462]: mpp_enc: mode vbr bps [108000:1728000:1836000] fps fix [15/1] -> fix [15/1] gop i [30] v [0]
Mar  8 23:38:04 lubancat kernel: [ 2463.954669] mpp_rkvenc2 fdbd0000.rkvenc-core: can not activate fdbd0000.rkvenc-core -> fdbd0000.rkvenc-core
Mar  8 23:38:04 lubancat mpp[136462]: mpi_enc_test: chn 0 encoded frame 0    size 54707   qp 23
Mar  8 23:38:05 lubancat mpp[136462]: mpi_enc_test: chn 0 encoded frame 1    size 12631   qp 26
Mar  8 23:38:05 lubancat mpp[136462]: mpi_enc_test: chn 0 encoded frame 2    size 13025   qp 26
Mar  8 23:38:05 lubancat mpp[136462]: mpi_enc_test: chn 0 encoded frame 3    size 12888   qp 26
Mar  8 23:38:05 lubancat mpp[136462]: mpi_enc_test: chn 0 encoded frame 4    size 11955   qp 26
Mar  8 23:38:05 lubancat mpp[136462]: mpi_enc_test: chn 0 encoded frame 5    size 11493   qp 26
Mar  8 23:38:05 lubancat mpp[136462]: mpi_enc_test: chn 0 encoded frame 6    size 11581   qp 26
Mar  8 23:38:05 lubancat mpp[136462]: mpi_enc_test: chn 0 encoded frame 7    size 11782   qp 26
Mar  8 23:38:05 lubancat mpp[136462]: mpi_enc_test: chn 0 encoded frame 8    size 12097   qp 26