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Sur d’autres sites (2811)

  • How to produce Live video and audio streaming (not VoD) with ffmpeg ?

    22 novembre 2022, par Artem

    I want to produce a Live audio/video stream from local file.

    



    I tried the following :

    



    


    ffmpeg -re -thread_queue_size 4 -i source_video_file.ts -strict -2
 -vcodec copy -an -f rtp rtp ://localhost:10000 -acodec copy -vn -sdp_file saved_sdp_file -f rtp rtp ://localhost:20000

    


    



    and then :

    



    


    ffplay saved_sdp_file

    


    



    It seems to work fine, but it looks like a Video on Demand, cause I can replay this file with ffplay whenever I want.

    



    But I need ffplay to show video/audio only during ffmpeg streaming instance is running (the first command above).

    



    How do I achieve this ?

    



    Thanks !

    


  • How to create .m3u8 and .ts files which are compatible with HTTP Live Streaming using Java and OpenCV ?

    30 septembre 2021, par O Connor

    Using FFMPEG as following, FFMPEG will create a stream.m3u8 file and .ts files sequentially, which are compatible for making video live streaming on a web page.

    


    ffmpeg -f dshow -i video="My Camera Name" stream.m3u8


    


    I am using Java and OpenCV as following for capturing video frames and creating .ts file.

    


    videoCapture = new VideoCapture(0, CV_CAP_DSHOW);

if (videoCapture.isOpened()) {
    Mat m = new Mat();
    videoCapture.read(m);
    int fourcc = VideoWriter.fourcc('a', 'v', 'c', '1');
    double fps = videoCapture.get(Videoio.CAP_PROP_FPS);
        
    if (fps <= 0) {
        fps = 25;
    }

    Size s =  new Size((int) videoCapture.get(Videoio.CAP_PROP_FRAME_WIDTH), (int) 
    videoCapture.get(Videoio.CAP_PROP_FRAME_HEIGHT));
    videoWriter = new VideoWriter("test0.ts", fourcc, fps, s, true);
      
    while (videoCapture.read(m)) {
         if (videoWriter.isOpened()) {
             videoWriter.write(m);
         }
    }
}
    
videoCapture.release();
videoWriter.release();


    


    I can play the test0.ts video using VLC player and ffplay. But this test0.ts video is not compatible for HTTP Live Streaming on a web page.

    


      

    1. How can I create .m3u8 and .ts files which are compatible with HTTP Live Streaming using Java and OpenCV ?

      2. 


    


    I am not persisting to use OpenCV and Java for create these files, but I need a client that captures the video frames and sends the raw video data to the server. And the server is responsible for catching the raw video data, creating .ts video file and for handling the live streaming requests coming from the web page. The communication between the client and the server uses a credential.

    


    That's why I think using FFMPEG alone for this approach is not possible.

    


      

    1. If there is another way for making this client, server and HTTP Live Streaming possible, I would like to learn that as well.

      2. 


    


  • Destreamer (FFMPEG / Youtube-DL) - Can't download video, Invalid DTS, Invalid timestamps message

    1er avril 2020, par toprun91

    I'm using Destreamer a program that essentially lets you download microsoft stream videos by passing a key URL with a cookie down to Youtube-dl which then calls into ffmpeg.

    



    Whenever I try to download a video using this program I get tons of repeating lines of text (errors ?) like this :

    



    [hls @ 000002487687c880] Invalid timestamps stream=0, pts=56400120, dts=56402820, size=6081
[mp4 @ 0000024876f525c0] Invalid DTS: 53717850 PTS: 53715150 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56406060, dts=56412090, size=6145
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56412090, dts=56414880, size=6515
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56406060, dts=56412090, size=6145
[mp4 @ 0000024876f525c0] Invalid DTS: 53727120 PTS: 53721090 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56412090, dts=56414880, size=6515
[mp4 @ 0000024876f525c0] Invalid DTS: 53729910 PTS: 53727120 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56418030, dts=56420820, size=6780
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56418030, dts=56420820, size=6780
[mp4 @ 0000024876f525c0] Invalid DTS: 53735850 PTS: 53733060 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56424060, dts=56430090, size=6668
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56430090, dts=56432880, size=6995
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56424060, dts=56430090, size=6668
[mp4 @ 0000024876f525c0] Invalid DTS: 53745120 PTS: 53739090 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56430090, dts=56432880, size=6995
[mp4 @ 0000024876f525c0] Invalid DTS: 53747910 PTS: 53745120 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56436120, dts=56442060, size=6342
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56442060, dts=56444850, size=6110
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56436120, dts=56442060, size=6342
[mp4 @ 0000024876f525c0] Invalid DTS: 53757090 PTS: 53751150 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56442060, dts=56444850, size=6110
[mp4 @ 0000024876f525c0] Invalid DTS: 53759880 PTS: 53757090 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56448090, dts=56454030, size=5750
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56454030, dts=56456820, size=6514
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56448090, dts=56454030, size=5750
[mp4 @ 0000024876f525c0] Invalid DTS: 53769060 PTS: 53763120 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56454030, dts=56456820, size=6514
[mp4 @ 0000024876f525c0] Invalid DTS: 53771850 PTS: 53769060 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56460060, dts=56466090, size=6843
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56466090, dts=56468880, size=7053
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56460060, dts=56466090, size=6843
[mp4 @ 0000024876f525c0] Invalid DTS: 53781120 PTS: 53775090 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56466090, dts=56468880, size=7053
[mp4 @ 0000024876f525c0] Invalid DTS: 53783910 PTS: 53781120 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56472120, dts=56478060, size=6297
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56478060, dts=56480850, size=6633
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56472120, dts=56478060, size=6297
[mp4 @ 0000024876f525c0] Invalid DTS: 53793090 PTS: 53787150 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56478060, dts=56480850, size=6633
[mp4 @ 0000024876f525c0] Invalid DTS: 53795880 PTS: 53793090 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56484090, dts=56490120, size=6026
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56490120, dts=56492820, size=6428
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56484090, dts=56490120, size=6026
[mp4 @ 0000024876f525c0] Invalid DTS: 53805150 PTS: 53799120 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56490120, dts=56492820, size=6428
[mp4 @ 0000024876f525c0] Invalid DTS: 53807850 PTS: 53805150 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56496060, dts=56502090, size=5738
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56502090, dts=56504880, size=5911
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56496060, dts=56502090, size=5738
[mp4 @ 0000024876f525c0] Invalid DTS: 53817120 PTS: 53811090 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56502090, dts=56504880, size=5911
[mp4 @ 0000024876f525c0] Invalid DTS: 53819910 PTS: 53817120 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56508030, dts=56514060, size=5860
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56514060, dts=56516850, size=6851
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56508030, dts=56514060, size=5860
[mp4 @ 0000024876f525c0] Invalid DTS: 53829090 PTS: 53823060 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56514060, dts=56516850, size=6851
[mp4 @ 0000024876f525c0] Invalid DTS: 53831880 PTS: 53829090 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56520090, dts=56526120, size=7342
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56526120, dts=56528820, size=7951
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56520090, dts=56526120, size=7342
[mp4 @ 0000024876f525c0] Invalid DTS: 53841150 PTS: 53835120 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56526120, dts=56528820, size=7951
[mp4 @ 0000024876f525c0] Invalid DTS: 53843850 PTS: 53841150 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56532060, dts=56538090, size=7998
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56538090, dts=56540790, size=8181
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56532060, dts=56538090, size=7998
[mp4 @ 0000024876f525c0] Invalid DTS: 53853120 PTS: 53847090 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56538090, dts=56540790, size=8181
[mp4 @ 0000024876f525c0] Invalid DTS: 53855820 PTS: 53853120 in output stream 0:0, replacing by guess
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56544030, dts=56550060, size=8707
[mpegts @ 0000024876dec540] Invalid timestamps stream=0, pts=56550060, dts=56552850, size=8878
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56544030, dts=56550060, size=8707
[mp4 @ 0000024876f525c0] Invalid DTS: 53865090 PTS: 53859060 in output stream 0:0, replacing by guess
[hls @ 000002487687c880] Invalid timestamps stream=0, pts=56550060, dts=56552850, size=8878
[mp4 @ 0000024876f525c0] Invalid DTS: 53867880 PTS: 53865090 in output stream 0:0, replacing by guess


    



    This continues to fill the screen and scroll with the same type of lines of text and then after a couple of hours it does eventually download the video but without sound.

    



    I am trying to work out why this is happening and why the video downloads without sound.

    



    Some key information :

    



      

    • I am using windows + powershell but also experience the same thing on
Linux (Kubuntu)

      • 


    • I am using the latest versions of FFMPEG, youtube-dl node.js

      • 


    • The program (destreamer) brings up a chromium window to authenticate.
In the Chromium window the video doesn't actually play properly and
gives Error code 0x20400003 The video plays fine in all other
browsers I have including Edge, Chrome, and Firefox

      • 


    



    Thanks for your help !

    


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