pCodecCtx = video_st->codec; // 设置编码器的 id,每一个编码器都对应着自己的 id,例如 h264 的编码 id 就是 AV_CODEC_ID_H264 pCodecCtx->codec_id = fmt->video_codec; // 设置编码类型为 视频编码 pCodecCtx->codec_type = AVMEDIA_TYPE_VIDEO; // 设置像素格式为 yuv 格式 pCodecCtx->p...
encode.h264为H264编码后的视频文件,大小1.4M decode.yuv为ffmpeg解码后的视频文件,大小77M。 从文件的大小非常明显能够看出h264压缩率。在Windows平台分辨播放了三个文件,画面看不出差别。 以下是代码" /*File : yuvTO264.c *Auth : sjin *Date : 20141115 *Mail : 413977243@qq.com */ /*利用x264库...
1、视频分离成图片序列:video—to—images(即视频帧) 2、图片序列合成视频:images—to—video 3、视频分离成无声视频和音频:video—to—video&audio 4、视频剪切:cut 参考 用-ss 和 -t 选项, 从第 30 秒开始,向后截取 10 秒的视频,并保存: ffmpeg -i input.wmv -ss 00:00:30.0 -c copy -t 00:00...
video_st = NULL;video_st = add_video_stream(fmtctx, &video_codec, AV_CODEC_ID_H264); 复制代码 其中,add_video_stream函数为: add_video_stream(AVFormatContext *oc,AVCodec **codec, enum AVCodecID codec_id) { AVCodecContext *c; AVStream *st; /* find the video encoder */ *codec = avc...
AVCodec *video_codec; const int FPS = 25; /* 25 images/s */ const char *RDIP = “127.0.0.1”; unsigned int RDPORT = 5678; const unsigned int OUTWIDTH = 720; const unsigned int OUTHEIGHT = 480; av_register_all(); avformat_network_init(); ...
I am trying to create a video from images using the ffmpeg library. The images have a size of 1920x1080 and are supposed to be encoded with H.264 using a .mkv container. I have come across various problems, thinking I am getting closer to a solution, but this one I am really...
However, I prefer to use the ffmpeg libx264 library for better quality; ffmpeg -framerate {preferredFrameRate} -i {OutputImgPath} -c:v libx264 -r {preferredFrameRate} {OutputVideoPath} Video's that I've created with libx264 in ffmpeg cannot be played with MediaElemen...
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_v...
实际上chrome最初也不支持h264视频解码，但h264在视频编码媒体领域中已经是势不可当（2003年发布），...
cv2.imshow('RTSP Video Stream with Person Detection', frame) if cv2.waitKey(1) & 0xFF == ord('q'): break 第二段代码的综合,完成处理后推流效果 (使用ffmpeg) import cv2 import ffmpeg # RTSP推流地址 rtsp_output_url = 'rtsp://192.168.233.169:8556/live/cv' ...