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说明
效果
项目
代码
下载 说明
利用周杰的开源项目 Sdcb.FFmpeg
项目地址#xff1a;https://github.com/sdcb/Sdcb.FFmpeg/
代码实现参考#xff1a;https://github.com/sdcb/ffmpeg-muxing-video-demo
效果 C#利用ffmpeg借助NVIDIA GPU实现实时RTSP硬解码硬…
目录
说明
效果
项目
代码
下载 说明
利用周杰的开源项目 Sdcb.FFmpeg
项目地址https://github.com/sdcb/Sdcb.FFmpeg/
代码实现参考https://github.com/sdcb/ffmpeg-muxing-video-demo
效果 C#利用ffmpeg借助NVIDIA GPU实现实时RTSP硬解码硬编码录制MP4 项目 代码
using Sdcb.FFmpeg.Codecs; using Sdcb.FFmpeg.Formats; using Sdcb.FFmpeg.Raw; using Sdcb.FFmpeg.Toolboxs.Extensions; using System; using System.Linq; using System.Threading; using System.Threading.Tasks; using System.Windows.Forms;
namespace Sdcb.FFmpegDemo { public partial class Form1 : Form { public Form1() { InitializeComponent(); } CancellationTokenSource cts; /// summary /// 播放 /// /summary /// param namesender/param /// param namee/param private void button1_Click(object sender, EventArgs e) { button1.Enabled false; button2.Enabled true; cts new CancellationTokenSource(); string rtsp_url txtURL.Text; //输出视频文件的名称。 string outputFile output.mp4; Task.Run(() Recording(rtsp_url, outputFile, cts.Token)); } void Recording(string url, string outputFile, CancellationToken cancellationToken) { //输出视频的帧率,帧率设置为每秒25帧 AVRational frameRate new AVRational(25, 1); //输出视频的比特率。 long bitRate 16 * 1024 * 1024; // 16M //从文件夹读取 //该字符串指定了源图像的文件夹和命名模式。%03d部分表示图像以三位数字命名例如001.jpg002.jpg等。 //string sourceFolder .\src\%03d.jpg; //FormatContext srcFc FormatContext.OpenInputUrl(sourceFolder, options: new MediaDictionary //{ // [framerate] frameRate.ToString() //}); FormatContext srcFc FormatContext.OpenInputUrl(url); srcFc.LoadStreamInfo(); MediaStream srcVideo srcFc.GetVideoStream(); CodecParameters srcCodecParameters srcVideo.Codecpar; CodecContext videoDecoder new CodecContext(Codec.FindDecoderByName(h264_cuvid)); { }; videoDecoder.FillParameters(srcCodecParameters); videoDecoder.Open(); //var d Codec.FindDecoders(AVCodecID.H264).Select(x x.Name); //var e Codec.FindEncoders(AVCodecID.H264).Select(x x.Name); FormatContext dstFc FormatContext.AllocOutput(OutputFormat.Guess(mp4)); dstFc.VideoCodec Codec.FindEncoderByName(h264_nvenc); MediaStream vstream dstFc.NewStream(dstFc.VideoCodec); CodecContext vcodec new CodecContext(dstFc.VideoCodec) { Width srcCodecParameters.Width, Height srcCodecParameters.Height, TimeBase frameRate.Inverse(), PixelFormat AVPixelFormat.Yuv420p, Flags AV_CODEC_FLAG.GlobalHeader, BitRate bitRate, }; vcodec.Open(dstFc.VideoCodec); vstream.Codecpar.CopyFrom(vcodec); vstream.TimeBase vcodec.TimeBase; IOContext io IOContext.OpenWrite(outputFile); dstFc.Pb io; dstFc.WriteHeader(); // src -- srcFc.ReadPackets() -- // src Packet -- DecodePackets(videoDecoder) -- // src Frame -- ConvertFrames(vcodec) -- // dst Frame -- EncodeFrames(vcodec) -- // dst Packet -- dstFc.InterleavedWritePacket -- // dst foreach (Packet packet in srcFc .ReadPackets().Where(x x.StreamIndex srcVideo.Index) .DecodePackets(videoDecoder) .ConvertFrames(vcodec) .EncodeFrames(vcodec) ) { try { packet.RescaleTimestamp(vcodec.TimeBase, vstream.TimeBase); packet.StreamIndex vstream.Index; dstFc.InterleavedWritePacket(packet); if (cancellationToken.IsCancellationRequested) break; } finally { packet.Unref(); } } dstFc.WriteTrailer(); io.Dispose(); vcodec.Dispose(); dstFc.Dispose(); videoDecoder.Dispose(); srcFc.Dispose(); } /// summary /// 停止 /// /summary /// param namesender/param /// param namee/param private void button2_Click(object sender, EventArgs e) { button2.Enabled false; button1.Enabled true; cts.Cancel(); } private void Form1_Load(object sender, EventArgs e) { button2.Enabled false; button1.Enabled true; Sdcb.FFmpeg.Utils.FFmpegLogger.LogWriter (level, msg) Console.WriteLine(msg); } }
}
using Sdcb.FFmpeg.Codecs;
using Sdcb.FFmpeg.Formats;
using Sdcb.FFmpeg.Raw;
using Sdcb.FFmpeg.Toolboxs.Extensions;
using System;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;namespace Sdcb.FFmpegDemo
{public partial class Form1 : Form{public Form1(){InitializeComponent();}CancellationTokenSource cts;/// summary/// 播放/// /summary/// param namesender/param/// param namee/paramprivate void button1_Click(object sender, EventArgs e){button1.Enabled false;button2.Enabled true;cts new CancellationTokenSource();string rtsp_url txtURL.Text;//输出视频文件的名称。string outputFile output.mp4;Task.Run(() Recording(rtsp_url, outputFile, cts.Token));}void Recording(string url, string outputFile, CancellationToken cancellationToken){//输出视频的帧率,帧率设置为每秒25帧AVRational frameRate new AVRational(25, 1);//输出视频的比特率。long bitRate 16 * 1024 * 1024; // 16M//从文件夹读取//该字符串指定了源图像的文件夹和命名模式。%03d部分表示图像以三位数字命名例如001.jpg002.jpg等。//string sourceFolder .\src\%03d.jpg;//FormatContext srcFc FormatContext.OpenInputUrl(sourceFolder, options: new MediaDictionary//{// [framerate] frameRate.ToString()//});FormatContext srcFc FormatContext.OpenInputUrl(url);srcFc.LoadStreamInfo();MediaStream srcVideo srcFc.GetVideoStream();CodecParameters srcCodecParameters srcVideo.Codecpar;CodecContext videoDecoder new CodecContext(Codec.FindDecoderByName(h264_cuvid));{};videoDecoder.FillParameters(srcCodecParameters);videoDecoder.Open();//var d Codec.FindDecoders(AVCodecID.H264).Select(x x.Name);//var e Codec.FindEncoders(AVCodecID.H264).Select(x x.Name);FormatContext dstFc FormatContext.AllocOutput(OutputFormat.Guess(mp4));dstFc.VideoCodec Codec.FindEncoderByName(h264_nvenc);MediaStream vstream dstFc.NewStream(dstFc.VideoCodec);CodecContext vcodec new CodecContext(dstFc.VideoCodec){Width srcCodecParameters.Width,Height srcCodecParameters.Height,TimeBase frameRate.Inverse(),PixelFormat AVPixelFormat.Yuv420p,Flags AV_CODEC_FLAG.GlobalHeader,BitRate bitRate,};vcodec.Open(dstFc.VideoCodec);vstream.Codecpar.CopyFrom(vcodec);vstream.TimeBase vcodec.TimeBase;IOContext io IOContext.OpenWrite(outputFile);dstFc.Pb io;dstFc.WriteHeader();// src -- srcFc.ReadPackets() --// src Packet -- DecodePackets(videoDecoder) --// src Frame -- ConvertFrames(vcodec) --// dst Frame -- EncodeFrames(vcodec) --// dst Packet -- dstFc.InterleavedWritePacket --// dstforeach (Packet packet in srcFc.ReadPackets().Where(x x.StreamIndex srcVideo.Index).DecodePackets(videoDecoder).ConvertFrames(vcodec).EncodeFrames(vcodec)){try{packet.RescaleTimestamp(vcodec.TimeBase, vstream.TimeBase);packet.StreamIndex vstream.Index;dstFc.InterleavedWritePacket(packet);if (cancellationToken.IsCancellationRequested) break;}finally{packet.Unref();}}dstFc.WriteTrailer();io.Dispose();vcodec.Dispose();dstFc.Dispose();videoDecoder.Dispose();srcFc.Dispose();}/// summary/// 停止/// /summary/// param namesender/param/// param namee/paramprivate void button2_Click(object sender, EventArgs e){button2.Enabled false;button1.Enabled true;cts.Cancel();}private void Form1_Load(object sender, EventArgs e){button2.Enabled false;button1.Enabled true;Sdcb.FFmpeg.Utils.FFmpegLogger.LogWriter (level, msg) Console.WriteLine(msg);}}}下载
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