FFmpeg is an open and cross-platform solution for video & audio conversion, recording, and streaming. It’s also able to crop and trim videos using command lines. If you have installed FFmpeg on your Windows, you can directly jump into the guide on FFmpeg video crop. If you have never u...
if (in_stream->codec->codec_type == AVMEDIA_TYPE_VIDEO && nVideoIndex > -1 ) { int nTimeBase = in_stream->time_base.den; if (nTimeBase>0) play->record_time = (float)(i_pkt.dts - start_dts) / nTimeBase; //TRACE("Video Timestamp: %f time_base = %d %lld %lld duration...
if (in_stream->codec->codec_type == AVMEDIA_TYPE_VIDEO && nVideoIndex > -1 ) { int nTimeBase = in_stream->time_base.den; if (nTimeBase>0) play->record_time = (float)(i_pkt.dts - start_dts) / nTimeBase; //TRACE("Video Timestamp: %f time_base = %d %lld %lld duration...
if(in_stream->codec->codec_type == AVMEDIA_TYPE_VIDEO && nVideoIndex > -1) { intnTimeBase = in_stream->time_base.den; if(nTimeBase>0) play->record_time = (float)(i_pkt.dts - start_dts) / nTimeBase; //TRACE("Video Timestamp: %f time_base = %d %lld %lld duration = %d...
在mpv播放器中,视频和音频的播放速度主要通过在player/playloop.c中调整帧的时间间隔(frame interval)和时间戳(timestamp)来实现。当speed选项改变时,frame_time值会相应地调整,而这个值用于决定每一帧的播放时长。此外,audio_pts和video_pts也会按照speed选项的值进行调整,以保证音频和视频能够同步播放。 double fr...
It is a simple player implemention on windows vs2005 platform. It is a light weight implemention without SDL, with directly access to bitmaps and wavdev by Win32 API. Currently, this player can smoothly play many video files, with low cpu and memory usage (compared with ffplay of offical ...
</video> To break things down: controls: Show playback controls. style=”width:352px;height:224px;”(optional): Set the size of the video container for your page. poster=”kickum.jpg”(optional): This replaces the default image for your video (prior to PLAY) with an image of your ...
使用Nginx、FFmpeg将rtsp流转换为hls流,web页面通过video.js实现视频播放 一、软件安装 (1)安装Nginx Windows平台下,下载Nginx的安装包,官网地址,建议选择Stable version。 解压缩之后可以通过双击nginx.exe运行Nginx服务器。在浏览器打开新的标签页并输入localhost或本机IP地址,若出现welcome to Nginx样式的文本,则成功...
{if(!isDecoding){StartDecoding();PlayButton.Content="停止播放";}else{StopDecoding();PlayButton.Content="开始播放";}}privateunsafevoidOpenVideoFile(string filename){// 初始化FFmpeg库ffmpeg.av_register_all();// 打开视频文件intret=ffmpeg.avformat_open_input(&pFormatCtx,filename,null,null);if(...
ctrl+V - switch video stream ctrl+S - take a snapshot of video ctrl+F - step seek forward ctrl+B - step seek backward ctrl+up - play speed up ctrl+down - play speed down ctrl+T - switch speed type ctrl+X - rotate video (only for d3d rendering mode) ...