edited Describe the bug When trying to encode using h264_vl42m2m within ffmpeg, the resulting videos are useless. However, by simply changing to libx264, and nothing else, videos are fine. For example: ffmpeg -i sample_1920x1080.mp4 -c:v h264_v4l2m2m -b:v 8M -c:a copy sample_192...
Sorry, these are really FFmpeg issues, not Pi kernel or firmware ones. V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER is supported by the driver to insert header bytes before each I-frame, but FFmpeg doesn't allow setting of it. A bsf (bitstream filter) entry should be independent of codec as i...
设备的额外 v4l2 控件 ID (CID) 标志:可读、可写 "GstStructure" 类型的装箱指针 min-force-key-unit-interval force-keyunit 请求之间的最小间隔(单位:纳秒) 标志:可读、可写 64 位无符号整型 范围:0 - 18446744073709551615;默认值:0 name 对象名称 标志:可读、可写,0x2000 字符串。默认值:"v4l2h264enc...
1、准备编码器上下文相关环境 voidCodecBase::initEnCodecContext(MZCodecIDType encodeId){LOGD("initEnCodecContext");enumAVCodecIDcId=getCodecIdWithId(encodeId);pCodec=avcodec_find_encoder(cId);if(pCodec==nullptr){LOGD("avcodec_find_encoder fail,encodeId %d 不存在",encodeId);return;}// 去掉...
V4L2打开摄像头主要步骤是 打开设备文件, 比如/dev/video0 查询摄像头信息 设置摄像头参数, 如曝光、分辨率、帧率 映射内存 需要注意的是 分辨率、帧率不一定能达到自己想要的值 设置的参数最好再读出来确认一次 /* camera.h */#ifndefCAMERA_H#defineCAMERA_H#include<stdint.h>typedefvoid(*vCameraFrameProcess)...
processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 92 model name : Intel(R) Celeron(R) CPU J3455 @ 1.50GHz stepping : 9 microcode : 0x40 cpu MHz : 799.896 cache size : 1024 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 4 apicid : 0 in...
Thermo Scientific - CIDTEC Bus. Unit of Thermo Fis摄像机 皕赫国际贸易(上海)有限公司 3年 查看详情 面议 广东东莞 海康DS-2CD7147HWDV2-IZS(2.8-12mm)© 400万高清半球摄像机 距您较近 海康威视品牌 东莞市东城奔月电子配件店 5年 查看详情 面议 广东东莞 海康威视iDS-2DP3236ZIXS-D/440/JM/T2...
V4L2_CID_STATELESS_H264_ENCODE_PARAMS); v4l2_ext_control_setup_compound(h264_src_controls->encode_params_control, &h264_src_controls->encode_params, sizeof(h264_src_controls->encode_params)); index++; h264_src_controls->encode_rc_control = ...
> case V4L2_CID_MPEG_VIDEO_H264_FMO_MAP_TYPE: > return h264_fmo_map_type; > + case V4L2_CID_MPEG_VIDEO_H264_DECODING_MODE: > + return h264_decoding_mode; > case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL: > return mpeg_mpeg2_level; ...
int32_t iCurIdrPicId; pDecoder->GetOption (DECODER_OPTION_IDR_PIC_ID, &iCurIdrPicId); int32_t iFrameNum; pDecoder->GetOption (DECODER_OPTION_FRAME_NUM, &iFrameNum); int32_t bCurAuContainLtrMarkSeFlag; pDecoder->GetOption (DECODER_OPTION_LTR_MARKING_FLAG, &bCurAuContainLtrMarkSeFlag);...