public AudioTest()
{
FFmpegBinariesHelper.RegisterFFmpegBinaries();
_fmt_ctx = ffmpeg.avformat_alloc_context();
receivedFrame = ffmpeg.av_frame_alloc();
}
public OverFlowCheckViewModel()
{
tempSever = new SimpleTCP.SimpleTcpServer().Start(10086);
tempSever.DataReceived += (sender, msg) =>
{
IP = msg.TcpClient.Client.LocalEndPoint.ToString();
string message = Encoding.ASCII.GetString(msg.Data);
Common.TCPHelper.COMMANDER cmd = new Common.TCPHelper.COMMANDER(message);
messageList.Add(cmd);
DMCode temp = new DMCode();
temp.CodeID = cmd.BoxId;
temp.CodeName = cmd.CommandType;
temp.Email = cmd.PackagePosition;
temp.Info = cmd.PackagePositionCount;
temp.Phone = cmd.DATETIME;
severmeeage = cmd.GenerateSendSuccessMessage();
byte[] data1 = Encoding.ASCII.GetBytes(severmeeage);
// tempSever.Send(tempSever.clientList[0],severmeeage);
// tempSever.clientList[0].BeginSend(data1,0,data1.Length,SocketFlags.None, new AsyncCallback(Message_Send), tempSever.clientList[0]);
CodeList.Add(temp);
msg.Reply(severmeeage);
};
FFmpegBinariesHelper.RegisterFFmpegBinaries();
// SetupLogging();
}
private static void Main()
{
FFmpegBinariesHelper.InitializeFFmpeg("x86", "x64");
using (var game = new Game1()) {
game.Run();
}
}
public StreamDecoder(string url, DecoderConfiguration configuration)
{
FFmpegBinariesHelper.RegisterFFmpegBinaries(); //Should not be here
this.decoderConfiguration = configuration;
_pFormatContext = ffmpeg.avformat_alloc_context();
var pFormatContext = _pFormatContext;
ffmpeg.avformat_open_input(&pFormatContext, url, null, null).ThrowExceptionIfError();
ffmpeg.avformat_find_stream_info(_pFormatContext, null).ThrowExceptionIfError();
// find the first video stream
AVStream *pStream = null;
for (var i = 0; i < _pFormatContext->nb_streams; i++)
{
if (_pFormatContext->streams[i]->codec->codec_type == AVMediaType.AVMEDIA_TYPE_VIDEO)
{
pStream = _pFormatContext->streams[i];
break;
}
}
if (pStream == null)
{
throw new InvalidOperationException("Could not found video stream.");
}
_streamIndex = pStream->index;
_pCodecContext = pStream->codec;
var codecId = _pCodecContext->codec_id;
var pCodec = ffmpeg.avcodec_find_decoder(codecId);
if (pCodec == null)
{
throw new InvalidOperationException("Unsupported codec.");
}
ffmpeg.avcodec_open2(_pCodecContext, pCodec, null).ThrowExceptionIfError();
decoderConfiguration.codec = FormatHelper.FFmpegToOT2(codecId);
decoderConfiguration.inputResolution = new Resolution(_pCodecContext->height, _pCodecContext->width);
//CodecName = ffmpeg.avcodec_get_name(codecId);
//PixelFormat = _pCodecContext->pix_fmt;
decoderConfiguration.inputPixelFormat = FormatHelper.FFmpegToOT2(_pCodecContext->pix_fmt);
_pPacket = ffmpeg.av_packet_alloc();
_pFrame = ffmpeg.av_frame_alloc();
decodingThread = new Thread(() => { while (DecodeFrame() == 0)
{
;
}
});
}
private void Form1_Load(object sender, EventArgs e)
{
Image screenboard = ScreenBoradImage.Image;
status = "정상 운행중";
end = "프로그램을 종료합니다.";
start = "프로그램을 시작합니다.";
connected = "연결이 되었습니다.";
disconnected = "연결이 끊겼습니다.";
camerastatus1 = "전방 카메라 ";
camerastatus2 = "후방 카메라 ";
firstlcs = "1차로 ";
secondlcs = "2차로 ";
thirdlcs = "3차로 ";
alllcs = "전차로 ";
stop = "진입금지";
forward = "진입가능";
this.lgm = new LogManager(start);
enterhold = true;
enterhold2 = true;
enterhold3 = true;
camera1cnt = 0;
camera2cnt = 0;
video1cnt = 0;
video2cnt = 0;
gridcnt = 0;
imagemax1 = false;
imagemax2 = false;
camera1record = 0;
camera2record = 0;
this.dataGridView1.ColumnHeadersDefaultCellStyle.Font = new Font("Courier New", 13, FontStyle.Bold);
this.dataGridView1.DefaultCellStyle.Font = new Font("Courier New", 13);
this.dataGridView1.RowsDefaultCellStyle.BackColor = Color.DarkBlue;
lcsgo = "http://192.168.10.105/relay_cgi.cgi?type=0&relay=0&on=1&time=0&pwd=0&";
lcsgostop = "http://192.168.10.105/relay_cgi.cgi?type=0&relay=0&on=0&time=0&pwd=0&";
lcsstop = "http://192.168.10.105/relay_cgi.cgi?type=0&relay=1&on=1&time=0&pwd=0&";
lcsstopstop = "http://192.168.10.105/relay_cgi.cgi?type=0&relay=1&on=0&time=0&pwd=0&";
lcsflash = "http://192.168.10.105/relay_cgi.cgi?type=0&relay=2&on=1&time=0&pwd=0&";
lcsflashstop = "http://192.168.10.105/relay_cgi.cgi?type=0&relay=2&on=0&time=0&pwd=0&";
//SendLcsData(lcsgo);
PlayCamera1();
PlayCamera2();
hwDeviceType = AVHWDeviceType.AV_HWDEVICE_TYPE_NONE;
hwDeviceType2 = AVHWDeviceType.AV_HWDEVICE_TYPE_NONE; //temp
FFmpegBinariesHelper.RegisterFFmpegBinaries();
//ConfigureHWDecoder(out hwDeviceType);
isInit = false;
isInit2 = false;
}
public VideoDecoder(DecoderConfiguration configuration)
{
FFmpegBinariesHelper.RegisterFFmpegBinaries();
//outputResolution = resolution;
Console.WriteLine("Current directory: " + Environment.CurrentDirectory);
Console.WriteLine("Runnung in {0}-bit mode.", Environment.Is64BitProcess ? "64" : "32");
Console.WriteLine($"FFmpeg version info: {ffmpeg.av_version_info()}");
//FFMPEG initialization
_pFormatContext = ffmpeg.avformat_alloc_context();
var pFormatContext = _pFormatContext;
//ffmpeg.avformat_open_input(&pFormatContext, url, null, null).ThrowExceptionIfError();
ffmpeg.avformat_find_stream_info(_pFormatContext, null).ThrowExceptionIfError();
// find the first video stream
//AVStream* pStream = null;
//for (var i = 0; i < _pFormatContext->nb_streams; i++)
// if (_pFormatContext->streams[i]->codec->codec_type == AVMediaType.AVMEDIA_TYPE_VIDEO)
// {
// pStream = _pFormatContext->streams[i];
// break;
//}
//if (pStream == null) throw new InvalidOperationException("Could not found video stream.");
// GET DECODER FOR STREAM
//_streamIndex = pStream->index;
//_pCodecContext = pStream->codec;
//var codecId = _pCodecContext->codec_id;
var codecId = FormatHelper.OT2ToFFmpeg(configuration.codec);
var pCodec = ffmpeg.avcodec_find_decoder(codecId);
_pCodecContext = ffmpeg.avcodec_alloc_context3(pCodec);
if (pCodec == null)
{
throw new InvalidOperationException("Unsupported codec.");
}
ffmpeg.avcodec_open2(_pCodecContext, pCodec, null).ThrowExceptionIfError();
var codecName = ffmpeg.avcodec_get_name(codecId);
var pixelFormat = _pCodecContext->pix_fmt;
// ALLOC FRAME AND PACKET
packet = ffmpeg.av_packet_alloc();
frame = ffmpeg.av_frame_alloc();
decodingThread = new Thread(DecodeFrames);
}
private static void InitializeFFmpeg()
{
if (_isFFmpegInitialized)
{
return;
}
FFmpegBinariesHelper.InitializeFFmpeg("x86", "x64");
_isFFmpegInitialized = true;
}
private bool activeThread; //rtsp thread 활성화 유무
public MainWindow()
{
InitializeComponent();
//비디오 프레임 디코딩 thread 생성
ts = new ThreadStart(DecodeAllFramesToImages);
thread = new Thread(ts);
//FFmpeg dll 파일 참조 경로 설정
FFmpegBinariesHelper.RegisterFFmpegBinaries();
//SetupLogging();
activeThread = true;
}
public MainWindow()
{
timeBeginPeriod(1);
InitializeComponent();
sys_pite = sys_con_pite;
m_window = this;
if (SharedSetting.FullS)
{
this.WindowStyle = WindowStyle.None;
this.WindowState = System.Windows.WindowState.Maximized;
}
FFmpegBinariesHelper.RegisterFFmpegBinaries();
return;
}
public MainWindow()
{
InitializeComponent();
//FFmpeg dll 파일 참조 경로 설정
FFmpegBinariesHelper.RegisterFFmpegBinaries();
Console.WriteLine("Current directory: " + Environment.CurrentDirectory);
Console.WriteLine("Runnung in {0}-bit mode.", Environment.Is64BitProcess ? "64" : "32");
Console.WriteLine($"FFmpeg version info: {ffmpeg.av_version_info()}");
SetupLogging();
//비디오 프레임 디코딩 thread 생성
decodingThreadStart = new ThreadStart(DecodeAllFramesToImages);
decodingThread = new Thread(decodingThreadStart);
//비디오 프레임 인코딩 thread 생성
encodingThreadStart = new ThreadStart(EncodeImagesToH264);
encodingThread = new Thread(encodingThreadStart);
}
public void Run(String filename, int frameIndex)
{
_isRunning = true;
Debug.Log("Current directory: " + Environment.CurrentDirectory);
var mode = Environment.Is64BitProcess ? "64" : "32";
Debug.Log($"Running in {mode}-bit mode");
FFmpegBinariesHelper.RegisterFFmpegBinaries();
Debug.Log($"FFmpeg version info: {ffmpeg.av_version_info()}");
SetupLogging();
ConfigureHWDecoder(out var deviceType);
Debug.Log("Decoding...");
var texture2D = DecodeFrameToTexture2D(filename, frameIndex, deviceType);
// _isRunning = false;
// File.WriteAllBytes($"image_{frameIndex:D5}.png", texture2D.EncodeToPNG());
}
static void Main(string[] args)
{
FFmpegBinariesHelper.RegisterFFmpegBinaries();
int ret;
AVPacket packet; //= { .data = NULL, .size = 0 };
packet.data = null;
packet.size = 0;
AVFrame *frame = null;
AVMediaType type;
int stream_index;
int i;
//ffmpeg.av_register_all();
//ffmpeg.avfilter_register_all();
if ((ret = OpenInputFile("rtsp://113.136.42.40:554/PLTV/88888888/224/3221226090/10000100000000060000000001759099_0.smil")) < 0)
{
goto end;
}
if ((ret = OpenOutputFile("E:\\hls\\out.m3u8")) < 0)
{
goto end;
}
//var avBitStreamFilter = ffmpeg.av_bsf_get_by_name("h264_mp4toannexb");
//fixed (AVBSFContext** ctx = &absCtx)
//ffmpeg.av_bsf_alloc(avBitStreamFilter, ctx);
//ffmpeg.av_bsf_init(absCtx);
/* read all packets */
int count = 0;
int flag = 1;
while (true)
{
if ((ret = ffmpeg.av_read_frame(ifmt_ctx, &packet)) < 0)
{
break;
}
stream_index = packet.stream_index;
type = ifmt_ctx->streams[packet.stream_index]->codec->codec_type;
ffmpeg.av_log(null, ffmpeg.AV_LOG_DEBUG, "Demuxer gave frame of stream_index %u\n");
ffmpeg.av_log(null, ffmpeg.AV_LOG_DEBUG, "Going to reencode&filter the frame\n");
frame = ffmpeg.av_frame_alloc();
if (null == frame)
{
ret = ffmpeg.AVERROR(12);
break;
}
ffmpeg.av_packet_rescale_ts(&packet,
ifmt_ctx->streams[stream_index]->time_base,
ifmt_ctx->streams[stream_index]->codec->time_base);
ret = dec_func(ifmt_ctx->streams[stream_index]->codec, frame, &packet);
if (ret < 0)
{
ffmpeg.av_frame_free(&frame);
ffmpeg.av_log(null, ffmpeg.AV_LOG_ERROR, "Decoding failed\n");
break;
}
//if (got_frame == 0)
//{
frame->pts = frame->pkt_pts;
// frame->pts = av_frame_get_best_effort_timestamp(frame);
// frame->pts=count;
if (type == AVMediaType.AVMEDIA_TYPE_VIDEO)
{
ret = encode_write_frame(frame, stream_index, null);
}
else
{
if (flag != 0)
{
InitSwr(stream_index);
flag = 0;
}
AVFrame *frame_out = ffmpeg.av_frame_alloc();
if (0 != TransSample(frame, frame_out, stream_index))
{
ffmpeg.av_log(null, ffmpeg.AV_LOG_ERROR, "convert audio failed\n");
ret = -1;
}
// frame_out->pts = frame->pkt_pts;
ret = encode_write_frame(frame_out, stream_index, null);
ffmpeg.av_frame_free(&frame_out);
}
ffmpeg.av_frame_free(&frame);
if (ret < 0)
{
goto end;
}
//}
//else
//{
// ffmpeg.av_frame_free(&frame);
//}
ffmpeg.av_packet_unref(&packet);
++count;
}
/* flush encoders */
// for (i = 0; i < ifmt_ctx->nb_streams; i++) {
// ret = flush_encoder(i);
// if (ret < 0) {
// av_log(NULL, AV_LOG_ERROR, "Flushing encoder failed\n");
// goto end;
// }
// }
ffmpeg.av_log(null, ffmpeg.AV_LOG_ERROR, "Flushing encoder failed\n");
ffmpeg.av_write_trailer(ofmt_ctx);
end:
ffmpeg.av_packet_unref(&packet);
ffmpeg.av_frame_free(&frame);
//fixed (AVBSFContext** ctx = &absCtx)
//ffmpeg.av_bsf_free(ctx);
for (i = 0; i < ifmt_ctx->nb_streams; i++)
{
ffmpeg.avcodec_close(ifmt_ctx->streams[i]->codec);
if (ofmt_ctx != null && ofmt_ctx->nb_streams > i && ofmt_ctx->streams[i] != null && ofmt_ctx->streams[i]->codec != null)
{
ffmpeg.avcodec_close(ofmt_ctx->streams[i]->codec);
}
}
// av_free(filter_ctx);
fixed(AVFormatContext **ss = &ifmt_ctx)
ffmpeg.avformat_close_input(ss);
if (ofmt_ctx != null && (ofmt_ctx->oformat->flags & ffmpeg.AVFMT_NOFILE) == 0)
{
ffmpeg.avio_closep(&ofmt_ctx->pb);
}
ffmpeg.avformat_free_context(ofmt_ctx);
// if (ret < 0)
// av_log(NULL, AV_LOG_ERROR, "Error occurred: %s\n", av_err2str(ret)); //av_err2str(ret));
}
public void testSet()
{
FFmpegBinariesHelper.RegisterFFmpegBinaries();
ffmpeg.avdevice_register_all();
var fmt_ctx = _fmt_ctx;
fmt_ctx = ffmpeg.avformat_alloc_context();
AVInputFormat *iformat = ffmpeg.av_find_input_format("dshow");
string device = "video=USB3. 0 capture:audio=디지털 오디오 인터페이스(5- USB3. 0 capture)";
var a = ffmpeg.avformat_open_input(&fmt_ctx, device, iformat, null); //음수이면 파일 안열려..그런 장치 없어!!
var b = ffmpeg.avformat_find_stream_info(fmt_ctx, null); //Stream을 찾을수 없어...
int videoIndex = -1;
int audioIndex = -1;
_fmt_ctx = fmt_ctx;
AVFormatContext *outputFmtCtx;
AudioIndex = -1;
VideoIndex = -1;
string filename = @"C:\Users\admin\Desktop\output223423423.avi";
AVFormatContext *inputFmtCtx = _fmt_ctx;
if (ffmpeg.avformat_alloc_output_context2(&outputFmtCtx, null, null, filename) < 0) //음수가 나오면 에러인거야...
{
Console.WriteLine("파일 생성 못해!!!");
}
var oCodec = ffmpeg.avcodec_find_encoder(AVCodecID.AV_CODEC_ID_MPEG4);
for (int index = 0; index < inputFmtCtx->nb_streams; index++)
{
AVStream * in_stream = inputFmtCtx->streams[index];
AVCodecContext *in_codec_ctx = in_stream->codec;
in_codec_ctx = ffmpeg.avcodec_alloc_context3(inputFmtCtx->data_codec);
AVStream *out_stream = ffmpeg.avformat_new_stream(outputFmtCtx, null);
if (out_stream == null)
{
Console.WriteLine("OUTPUT 스트림 NULL");
}
//
AVCodecContext *outCodecContext = out_stream->codec;
outCodecContext->codec = oCodec;
outCodecContext = ffmpeg.avcodec_alloc_context3(oCodec);
outCodecContext->height = 500;
outCodecContext->width = 600;
// outCodecContext->sample_aspect_ratio = videoInfo.Sample_aspect_ratio;
outCodecContext->pix_fmt = AVPixelFormat.AV_PIX_FMT_YUV420P;
outCodecContext->time_base = new AVRational {
num = 1, den = 15
};
// outCodecContext->framerate = ffmpeg.av_inv_q(videoInfo.Framerate);
//context를 설정해야 뭔가 쓸수잇오.....
if (ffmpeg.avcodec_parameters_from_context(out_stream->codecpar, outCodecContext) < 0)
{
Console.WriteLine("copy 못해에!!!");
}
out_stream->time_base = in_stream->time_base;
outCodecContext->codec_tag = 0;
if ((outputFmtCtx->oformat->flags & ffmpeg.AVFMT_GLOBALHEADER) == 0)
{
outCodecContext->flags |= ffmpeg.AV_CODEC_FLAG_GLOBAL_HEADER;
}
// ffmpeg.avcodec_open2(outCodecContext, oCodec, null).ThrowExceptionIfError();
VideoIndex = 0;
AudioIndex = 1;
ffmpeg.av_dump_format(outputFmtCtx, 0, filename, 1);
if ((outputFmtCtx->oformat->flags & ffmpeg.AVFMT_NOFILE) == 0)
{
// This actually open the file
if (ffmpeg.avio_open(&outputFmtCtx->pb, filename, ffmpeg.AVIO_FLAG_WRITE) < 0)
{
Console.WriteLine("못만들오...");
}
}
if (ffmpeg.avformat_write_header(outputFmtCtx, null) < 0)
{
Console.WriteLine("헤더를 못써...\n");
}
}
//ffmpeg.av_write_trailer(outputFmtCtx);
//ffmpeg.avio_closep(&outputFmtCtx->pb);
//ffmpeg.avformat_free_context(outputFmtCtx);
//nb_streams : 요소 몇갠지..!!! 내가 찾은거에서 뭐있는지
for (int index = 0; index < fmt_ctx->nb_streams; index++)
{
var avCodecContext = fmt_ctx->streams[index]->codec;
if (avCodecContext->codec_type == AVMediaType.AVMEDIA_TYPE_VIDEO)
{
videoIndex = index;
}
else if (avCodecContext->codec_type == AVMediaType.AVMEDIA_TYPE_AUDIO)
{
audioIndex = index;
Console.WriteLine(audioIndex + "***");
}
if (avCodecContext->codec_type == AVMediaType.AVMEDIA_TYPE_VIDEO)
{
videoIndex = index;
Console.WriteLine($"====================={avCodecContext->codec_type}======================");
//Console.WriteLine(avCodecContext->bit_rate); //W * H *FPS
//Console.WriteLine(avCodecContext->codec_id);
//Console.WriteLine(avCodecContext->width);
//Console.WriteLine(avCodecContext->coded_width);
//Console.WriteLine(avCodecContext->height);
//Console.WriteLine(avCodecContext->coded_height);
//Console.WriteLine(avCodecContext->pts_correction_num_faulty_pts);
//Console.WriteLine(avCodecContext->pts_correction_last_dts);
//Console.WriteLine(avCodecContext->pts_correction_last_pts);
Console.WriteLine();
}
else if (avCodecContext->codec_type == AVMediaType.AVMEDIA_TYPE_AUDIO)
{
audioIndex = index;
Console.WriteLine($"====================={avCodecContext->codec_type}======================");
//Console.WriteLine(avCodecContext->bit_rate); //W * H *FPS
//Console.WriteLine(avCodecContext->codec_id);
//Console.WriteLine($"Channels : {avCodecContext->channels}");
//Console.WriteLine(avCodecContext->width);
//Console.WriteLine(avCodecContext->coded_width);
//Console.WriteLine(avCodecContext->height);
//Console.WriteLine(avCodecContext->coded_height);
//Console.WriteLine(avCodecContext->pts_correction_num_faulty_pts);
//Console.WriteLine(avCodecContext->pts_correction_last_dts);
//Console.WriteLine(avCodecContext->pts_correction_last_pts);
}
}
int ret;
AVPacket pkt;
int out_stream_index;
while (true)
{
ret = ffmpeg.av_read_frame(fmt_ctx, &pkt); //ret == 0 이면
if (ret == ffmpeg.AVERROR_EOF)
{
Console.WriteLine("frame end");
break;
}
if (pkt.stream_index == videoIndex)
{
Console.WriteLine("Video Packet");
}
else if (pkt.stream_index == audioIndex)
{
Console.WriteLine("Audio Packet");
}
AVStream *in_stream = fmt_ctx->streams[pkt.stream_index];
out_stream_index = (pkt.stream_index == videoIndex) ? videoIndex : audioIndex;
AVStream *out_stream = outputFmtCtx->streams[out_stream_index];
ffmpeg.av_packet_rescale_ts(&pkt, in_stream->time_base, out_stream->time_base);
pkt.stream_index = out_stream_index;
if (ffmpeg.av_interleaved_write_frame(outputFmtCtx, &pkt) < 0)
{
Console.WriteLine("!!!!!!!!@#####!@#!@#!");
break;
}
ffmpeg.av_packet_unref(&pkt); //옛날엔 av_free_packet()
}
ffmpeg.av_write_trailer(outputFmtCtx);
}
static unsafe void Main(string[] args)
{
Console.WriteLine("Hello World!");
string fileInput = "rtsp://*****:*****@192.168.1.83:554/h264/ch40/sub/av_stream";
string fileOutput = "rtsp://192.168.1.120:8554/live/mystream";
FFmpegBinariesHelper.RegisterFFmpegBinaries();
string inUrl = "rtsp://*****:*****@192.168.1.83:554/h264/ch40/sub/av_stream";//可以是本地文件
string outUrl = "rtsp://192.168.1.120:8554/live/mystream";
//初始化所有封装器
ffmpeg.av_register_all();
//初始化网络库
ffmpeg.avformat_network_init();
int res = 0;
//打开文件，解封装文件头
//输入封装上下文
AVFormatContext *ictx = null;
//设置rtsp协议延时最大值
AVDictionary *opts = null;
ffmpeg.av_dict_set(&opts, "max_delay", "500", 0);
if ((res = ffmpeg.avformat_open_input(&ictx, inUrl, null, &opts)) != 0)
{
new Exception();
}
//获取音视频流信息
if ((res = ffmpeg.avformat_find_stream_info(ictx, null)) < 0)
{
new Exception();
}
ffmpeg.av_dump_format(ictx, 0, inUrl, 0);
//创建输出上下文
AVFormatContext *octx = null;
if (ffmpeg.avformat_alloc_output_context2(&octx, null, "rtsp", outUrl) < 0)
{
new Exception();
}
//配置输出流
//遍历输入的AVStream
for (int i = 0; i < ictx->nb_streams; ++i)
{
//创建输出流
AVStream *out1 = ffmpeg.avformat_new_stream(octx, ictx->streams[i]->codec->codec);
if (out1 == null)
{
//printf("new stream error.\n");
return;
}
//复制配置信息
if ((res = ffmpeg.avcodec_copy_context(out1->codec, ictx->streams[i]->codec)) != 0)
{
new Exception();
}
//out->codec->codec_tag = 0;//标记不需要重新编解码
}
ffmpeg.av_dump_format(octx, 0, outUrl, 1);
//rtmp推流
//打开io
//@param s Used to return the pointer to the created AVIOContext.In case of failure the pointed to value is set to NULL.
res = ffmpeg.avio_open(&octx->pb, outUrl, ffmpeg.AVIO_FLAG_READ_WRITE);
if (octx->pb == null)
{
new Exception();
}
//写入头信息
//avformat_write_header可能会改变流的timebase
if ((res = ffmpeg.avformat_write_header(octx, null)) < 0)
{
new Exception();
}
var begintime = ffmpeg.av_gettime();
var realdts = 0;
var caldts = 0;
AVPacket pkt;
while (true)
{
if ((res = ffmpeg.av_read_frame(ictx, &pkt)) != 0)
{
break;
}
if (pkt.size <= 0)//读取rtsp时pkt.size可能会等于0
{
continue;
}
//转换pts、dts、duration
//pkt.pts = (long)(pkt.pts * ffmpeg.av_q2d(ictx->streams[pkt.stream_index]->time_base) / ffmpeg.av_q2d(octx->streams[pkt.stream_index]->time_base));
//pkt.dts = (long)(pkt.dts * ffmpeg.av_q2d(ictx->streams[pkt.stream_index]->time_base) / ffmpeg.av_q2d(octx->streams[pkt.stream_index]->time_base));
//pkt.duration = (long)(pkt.duration * ffmpeg.av_q2d(ictx->streams[pkt.stream_index]->time_base) / ffmpeg.av_q2d(octx->streams[pkt.stream_index]->time_base));
//pkt.pos = -1;//byte position in stream, -1 if unknown
//文件推流计算延时
//av_usleep(30 * 1000);
/*realdts = av_gettime() - begintime;
* caldts = 1000 * 1000 * pkt.pts * av_q2d(octx->streams[pkt.stream_index]->time_base);
* if (caldts > realdts)
* av_usleep(caldts - realdts);*/
if ((res = ffmpeg.av_interleaved_write_frame(octx, &pkt)) < 0)//推流,推完之后pkt的pts，dts竟然都被重置了！而且前面几帧还因为dts没有增长而返回-22错误
{
new Exception();
}
ffmpeg.av_packet_unref(&pkt); //回收pkt内部分配的内存
}
ffmpeg.av_write_trailer(octx); //写文件尾
}
public void changecontainerset()
{
AVFormatContext *input_format_context = null;
AVFormatContext *output_format_context = null;
FFmpegBinariesHelper.RegisterFFmpegBinaries();
ffmpeg.avdevice_register_all();
input_format_context = ffmpeg.avformat_alloc_context();
AVInputFormat *iformat = ffmpeg.av_find_input_format("dshow");
string device = "video=USB3. 0 capture:audio=디지털 오디오 인터페이스(5- USB3. 0 capture)";
var a = ffmpeg.avformat_open_input(&input_format_context, device, iformat, null); //음수이면 파일 안열려..그런 장치 없어!!
var b = ffmpeg.avformat_find_stream_info(input_format_context, null); //Stream을 찾을수 없어...
var fileName = @"C:\Users\admin\Desktop\changeContainer.avi";
ffmpeg.avformat_alloc_output_context2(&output_format_context, null, null, fileName);
var number_of_streams = input_format_context->nb_streams;
var streams_list = new int[2];
int stream_index = 0;
for (int i = 0; i < input_format_context->nb_streams; i++)
{
AVStream * out_stream;
AVStream * in_stream = input_format_context->streams[i];
AVCodecParameters *in_codecpar = in_stream->codecpar;
Console.WriteLine(in_codecpar->codec_id);
if (in_codecpar->codec_type != AVMediaType.AVMEDIA_TYPE_VIDEO &&
in_codecpar->codec_type != AVMediaType.AVMEDIA_TYPE_AUDIO)
{
streams_list[i] = -1;
continue;
}
streams_list[i] = stream_index++;
out_stream = ffmpeg.avformat_new_stream(output_format_context, null);
var ret = ffmpeg.avcodec_parameters_copy(out_stream->codecpar, in_codecpar);
}
if (ffmpeg.avio_open(&output_format_context->pb, fileName, ffmpeg.AVIO_FLAG_WRITE) < 0)
{
Console.WriteLine("Failed to open output file! \n");
}
ffmpeg.avformat_write_header(output_format_context, null);
output_format_context->streams[0]->time_base = new AVRational {
num = 1, den = 30
};
output_format_context->streams[0]->codec->time_base = new AVRational {
num = 1, den = 30
};
output_format_context->streams[0]->codec->framerate = new AVRational {
num = 30, den = 1
};
int index = 1;
while (index < 1000)
{
AVStream *in_stream;
AVStream *out_stream;
AVPacket packet;
var ret = ffmpeg.av_read_frame(input_format_context, &packet);
if (ret < 0)
{
break;
}
in_stream = input_format_context->streams[packet.stream_index];
if (packet.stream_index == 0)
{
in_stream->codec->time_base = new AVRational {
num = 1, den = 30
};
in_stream->codec->framerate = new AVRational {
num = 30, den = 1
};
in_stream->r_frame_rate = new AVRational {
num = 30, den = 1
};
output_format_context->streams[0]->r_frame_rate = new AVRational {
num = 30, den = 1
};
}
if (packet.stream_index >= number_of_streams || streams_list[packet.stream_index] < 0)
{
ffmpeg.av_packet_unref(&packet);
continue;
}
packet.stream_index = streams_list[packet.stream_index];
out_stream = output_format_context->streams[packet.stream_index];
Console.WriteLine(output_format_context->streams[0]->time_base.num + "/ " + output_format_context->streams[0]->time_base.den);
if (packet.stream_index == 0)
{
packet.pts = index;
packet.dts = index;
}
else
{
}
packet.pts = ffmpeg.av_rescale_q_rnd(packet.pts, output_format_context->streams[packet.stream_index]->codec->time_base, output_format_context->streams[packet.stream_index]->time_base, AVRounding.AV_ROUND_INF | AVRounding.AV_ROUND_PASS_MINMAX);
packet.dts = ffmpeg.av_rescale_q_rnd(packet.dts, output_format_context->streams[packet.stream_index]->codec->time_base, output_format_context->streams[packet.stream_index]->time_base, AVRounding.AV_ROUND_INF | AVRounding.AV_ROUND_PASS_MINMAX);
Console.WriteLine(output_format_context->streams[packet.stream_index]->codec->time_base.den);
///* copy packet */
Console.WriteLine($"Packet {packet.pts} / {packet.dts} ");
//Console.WriteLine($"Packet {packet.pts} / {packet.dts} ");
//Console.WriteLine($"Packet {packet.pts} / {packet.dts} ");
index++;
var ret1 = ffmpeg.av_interleaved_write_frame(output_format_context, &packet);
if (ret < 0)
{
Console.WriteLine("write error");
}
//av_packet_unref(&packet);
}
ffmpeg.av_write_trailer(output_format_context);
}
