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Sur d’autres sites (10545)

  • Error and understanding issue : using ffmpeg to real time publish FLV file to Red5 and real time download FLV from Red5

    29 août 2014, par kajarigd

    OS : Windows 8, RTMP Server : Red5, Video File format : FLV, I want to : Read/Write FLV from and to Red5 by live streaming.

    To publish FLV file from local I am using this command at Command Line :

    ffmpeg -re -i input.flv -acodec copy -vcodec copy -f flv rtmp://ocalhost/oflaDemo/streams

    My understanding : This command will upload input.flv to the server location C :\Program Files\red5\webapps\oflaDemo\streams. So, after the command is done running, I expect in this server location a new file input.flv will be created. Is this correct ?

    When I am running this command I am getting the following error and no file is getting created on the server side :

    [flv @ 03c6a660] Failed to update header with correct duration.
    
[flv @ 03c6a660] Failed to update header with correct filesize.
    
frame= 1567 fps= 24 q=-1.0 Lsize=    3064kB time=00:01:05.43 bitrate= 383.6kbits
    
/s
    
video:2232kB audio:767kB subtitle:0kB other streams:0kB global headers:0kB muxin
    
g overhead: 2.183349%

    Can you help me understand what I am doing wrong ? What should be correct command in this case to achieve what I want ?

    Now, I am using the following command to livestream read a FLV file from the server into my local :

    ffmpeg -re -i rtmp://localhost/oflaDemo/streams/hobbit_vp6.flv -c copy dump.flv

    My understanding : File hobbit_vp6.flv will be downloaded into my local directory and will get saved as dump.flv. And this will be live streaming. This will be like, recording a video stream from the server. Is this correct ?

    When I am running this command I am getting the following error and no file is getting created on the local :

    Closing connection: NetStream.Play.StreamNotFound rtmp://localhost/oflaDemo/streams/hobbit_vp6.flv: Unknown error occurred

    Can you help me understand what I am doing wrong ? What should be correct command in this case to achieve what I want ?

  • FFSERVER - streaming an ASF video as Webm output

    30 mai 2014, par Emmanuel Brunet

    I’m trying to stream an IP webcam ASF live stream to a ffserver to output a webm video format. The server starts successfully but the ffserver commands used to feed the ffserver fails and generates a core dump.

    Input stream

    $ ffprobe http://account:password@webcam/videostream.asf
    

    
Input #0, asf, from 'http://admin:alpha1237@webcam/videostream.asf':
    
  Duration: N/A, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc), 640x480, 25 tbr, 1k tbn, 1k tbc
    
    Stream #0:1: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 8000 Hz, 1 channels, s16p, 32 kb/s

    ffserver configuration

    my ffserver configuration is :

    Port 8091
    
RTSPPort 554
    
BindAddress 192.168.1.62
    
MaxHTTPConnections 1000
    
MaxClients 100
    
MaxBandwidth 1000
    
CustomLog -
    

    
<feed>
    
        File /tmp/webcam.ffm
    
        FileMaxSize 500M
    
        ACL allow localhost
    
        ACL allow 192.168.0.0 192.168.255.255
    

    
</feed>
    

    
<stream>              # Output stream URL definition
    
   Feed webcam.ffm              # Feed from which to receive video
    
   Format webm
    

    
   # Audio settings
    
   AudioCodec vorbis
    
   AudioBitRate 64             # Audio bitrate
    

    
   # Video settings
    
   VideoCodec libvpx
    
   VideoSize 640x480           # Video resolution
    
   VideoFrameRate 25           # Video FPS
    
   AVOptionVideo flags +global_header  # Parameters passed to encoder
    
                                       # (same as ffmpeg command-line parameters)
    
   AVOptionVideo cpu-used 0
    
   AVOptionVideo qmin 10
    
   AVOptionVideo qmax 42
    
   AVOptionVideo quality good
    
   AVOptionAudio flags +global_header
    
   PreRoll 15
    
   StartSendOnKey
    
   # VideoBitRate 32            # Video bitrate
    
</stream>
    

    
<stream>
    
        Format status
    
        # Only allow local people to get the status
    
        ACL allow localhost
    
        ACL allow 192.168.0.0 192.168.255.255
    
</stream>

    ffmpeg feed

    I run the following command that fails

    $ ffmpeg  -i http://account:password@webcam/videostream.asf http://192.168.1.62:8091/webcam.ffm
    
http://192.168.1.62:8091/webcam.ffm
    
Input #0, asf, from 'http://account:password@webcam/videostream.asf':
    
  Duration: N/A, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc), 640x480, 25 tbr, 1k tbn, 1k tbc
    
    Stream #0:1: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 8000 Hz, mono, s16p, 32 kb/s
    
[swscaler @ 0x36a80c0] deprecated pixel format used, make sure you did set range correctly
    
Segmentation fault

    I tryed

    $ ffmpeg  -i http://account:password@webcam/videostream.asf -pix_fmt yuv420p  http://192.168.1.62:8091/webcam.ffm

    But it raises the same error.

    Thanks for your help

    Edit

    For an easy testing (I thought), I tried to publish the whole ASF stream as is, meaning connecting the ASF webcam output stream to the ffserver that outputs ASF format too.
    And thus with mirrored encoding so I changed the ffserver configuration to

    ...
    
<stream>
    
    Feed webcam.ffm
    
    Format asf
    
    VideoFrameRate 25
    
    VideoSize 640X480
    
    VideoBitRate 256
    
    VideoBufferSize 1000
    
    VideoGopSize 30
    
    AudioBitRate 32
    
    StartSendOnKey
    
</stream>
    
...

    And the output is now :

    Input #0, asf, from 'http://admin:alpha1237@webcam/videostream.asf':
    
  Duration: N/A, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc), 640x480, 1k tbr, 1k tbn, 1k tbc
    
    Stream #0:1: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 8000 Hz, mono, s16p, 32 kb/s
    
[swscaler @ 0x3d620c0] deprecated pixel format used, make sure you did set range correctly
    
Output #0, ffm, to 'http://192.168.1.62:8091/webcam.ffm':
    
  Metadata:
    
    creation_time   : now
    
    encoder         : Lavf55.40.100
    
    Stream #0:0: Audio: wmav2, 22050 Hz, mono, fltp, 32 kb/s
    
    Metadata:
    
      encoder         : Lavc55.64.100 wmav2
    
    Stream #0:1: Video: msmpeg4v3 (msmpeg4), yuv420p, 640x480, q=2-31, 256 kb/s, 1k fps, 1000k tbn, 1k tbc
    
    Metadata:
    
Stream mapping:
    
  Stream #0:1 -> #0:0 (adpcm_ima_wav -> wmav2)
    
  Stream #0:0 -> #0:1 (mjpeg -> msmpeg4)
    
Press [q] to stop, [?] for help
    
Segmentation fault

    I can’t even forward the stream.

  • how to have live video streaming using ffmpeg command or using tcl 8.0 script on windows 10 platform [duplicate]

    16 novembre 2017, par M. D. P

    This question is an exact duplicate of :

    I am able to capture the video and image by using ffmpeg in tcl script, but I want to have live video streaming for my multiple webcams for tcl version 8.0 on windows 10.

    I tryed :

    ffmpeg -f vfwcap -r 25 -i 0 sample.avi

    for video capturing, it works

    ffmpeg -f vfwcap -r 25 -i 0

    and I tried this for live video streaming by it didn’t http://wiki.tcl.tk/40194
    So what will be the right command for live video streaming.

    exec [list ffmpeg -f dshow -t 00:00:10 -i "video=Integrated Webcam" -b 5000k -s 1280x720 c :/test/sample-a.avi] &

    also tried with this, still not working

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