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    4 février 2011, par

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    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
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    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
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Sur d’autres sites (5773)

  • FFMPEG : Youtube streaming issues

    23 février 2019, par Alex Paramonov

    I am trying to make a reliable stream from my Icecast/Shoutcast servers to Youtube live.
    The command that I use is :

    /usr/bin/ffmpeg -re -loop 1 -framerate 1 -i /var/users/youtube_stream/DJ-philadelphia_jO46wsH.jpg -i http://127.0.0.1:4700/radio -c:v libx264 -preset ultrafast -maxrate 2048k -bufsize 2048k -c:a copy -ab 128k -s 1920x1080 -rtmp_live live -f flv rtmp://a.rtmp.youtube.com/live2/k123 -nostats

    The stream starts running but suddenly stops at random times with the output similar to this :

    av_interleaved_write_frame(): Broken pipe
    
[flv @ 0x5641e04db260] Failed to update header with correct duration.
    
[flv @ 0x5641e04db260] Failed to update header with correct filesize.
    
Error writing trailer of rtmp://a.rtmp.youtube.com/live2/123: Broken pipe
    
frame= 4771 fps=1.0 q=2.0 Lsize=  106465kB time=01:19:30.00 bitrate= 182.8kbits/s speed=   1x
    
video:29022kB audio:74516kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.825971%
    
Conversion failed!
    
99%
    
Exiting normally, received signal 15.

    I can’t say exactly why is this happening and maybe there is a way to fix it, but to mee it looks like ffmpeg can not send or convert some frame and it breaks the entire process, so I started digging the docs and found a fifo format that has reconnection options in case of failure.
    So my new command is :

    /usr/bin/ffmpeg -re -loop 1 -framerate 1 -i /var/users/youtube_stream/DJ-philadelphia_jO46wsH.jpg -i http://127.0.0.1:4700/radio -c:v libx264 -preset ultrafast -maxrate 2048k -bufsize 2048k -c:a copy -ab 128k -s 1920x1080 -rtmp_live live -f fifo -fifo_format flv -map 0:v -map 1:a -drop_pkts_on_overflow 1 -attempt_recovery 1 -recovery_wait_time 1 rtmp://a.rtmp.youtube.com/live2/123 -nostats

    With this command Youtube starts complaining about video resolution saying that 65535x65535 is not supported, value 65535 looks like something is not initialized properly. Please note that I have explicitly set the resolution with -s 1920x1080.

    The output from FLV and FIFO formats looks quite similar.

    FLV

    Input #0, image2, from '/var/users/youtube_stream/DJ-philadelphia_jO46wsH.jpg':
    
  Duration: 00:00:01.00, start: 0.000000, bitrate: 597 kb/s
    
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 1 fps, 1 tbr, 1 tbn, 1 tbc
    
Input #1, mp3, from 'http://127.0.0.1:4700/radio':
    
  Metadata:
    
    icy-br          : 128
    
    icy-description : test
    
    icy-genre       : test
    
    icy-name        : Test
    
    icy-pub         : 1
    
    StreamTitle     : silence
    
  Duration: N/A, start: 0.000000, bitrate: 128 kb/s
    
    Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
  Stream #1:0 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x563bdde386a0] using SAR=1/1
    
[libx264 @ 0x563bdde386a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0x563bdde386a0] profile Constrained Baseline, level 4.0
    
[libx264 @ 0x563bdde386a0] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=18 lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=1 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=2048 vbv_bufsize=2048 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=0
    
Output #0, flv, to 'rtmp://a.rtmp.youtube.com/live2/k478-1xpz-v2de-5e79':
    
  Metadata:
    
    encoder         : Lavf57.83.100
    
    Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 1 fps, 1k tbn, 1 tbc
    
    Metadata:
    
      encoder         : Lavc57.107.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 2048000/0/0 buffer size: 2048000 vbv_delay: -1
    
    Stream #0:1: Audio: mp3 ([2][0][0][0] / 0x0002), 44100 Hz, stereo, s16p, 128 kb/s

    FIFO

    Input #0, image2, from '/var/users/youtube_stream/DJ-philadelphia_jO46wsH.jpg':
    
  Duration: 00:00:01.00, start: 0.000000, bitrate: 597 kb/s
    
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 1 fps, 1 tbr, 1 tbn, 1 tbc
    
Input #1, mp3, from 'http://127.0.0.1:4700/radio':
    
  Metadata:
    
    icy-br          : 128
    
    icy-description : test
    
    icy-genre       : test
    
    icy-name        : Test
    
    icy-pub         : 1
    
    StreamTitle     : silence
    
  Duration: N/A, start: 0.000000, bitrate: 128 kb/s
    
    Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
  Stream #1:0 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x560fb2209ae0] using SAR=1/1
    
[libx264 @ 0x560fb2209ae0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0x560fb2209ae0] profile Constrained Baseline, level 4.0
    
Output #0, fifo, to 'rtmp://a.rtmp.youtube.com/live2/k478-1xpz-v2de-5e79':
    
  Metadata:
    
    encoder         : Lavf57.83.100
    
    Stream #0:0: Video: h264 (libx264), yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 1 fps, 1 tbn, 1 tbc
    
    Metadata:
    
      encoder         : Lavc57.107.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 2048000/0/0 buffer size: 2048000 vbv_delay: -1
    
    Stream #0:1: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s

    you can see the input streams, output, mapping - all fine except one line that is missing with fifo format :

    [libx264 @ 0x563bdde386a0] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html ...

    Seems like video codec is not completely initialized and does not start with when using fifo format.

    So my questions are :

    1. is there a way to create a reliable stream with ffmpeg w/o using
      fifo format ?
    2. if fifo format is mandatory in this case, what’s wrong with my
      video codec ?

  • ffmpeg droping session when there is no input , need to wait for an input

    25 mars 2019, par Hovo

    I am trying to live stream to facebook from an application, which is writing frames into image sequence of XXX_Frame.jpg inside a folder.

    I am using a ffmpeg with these commands

    ffmpeg -y -r 15 -f image2 -start_number 0 -i "%0d_Frame.jpg" -i "test.mp3" -muxdelay 1 -preset slow -flush_packets 1 -ar 44100 -b:a 128k -profile:v baseline -acodec aac -vf scale=1280x720 -vcodec libx264 -crf 15 -r 50 -pix_fmt yuvj420p -minrate 50k -maxrate 150k -bufsize 8192k -g 1 -b:v 1200 -f flv "rtmp ://live-api-s.facebook.com:80/rtmp/xxxxxx"

    It is starting to stream faster than 15 frames per second and whenever it finishes up streaming of the available frames it is killing the process and returning error.
    It would be perfect if it was possible to slow down the mux’s read from the input to frame rate speed.

    [flv @ 000001f34347cf00] Failed to update header with correct duration.
    [flv @ 000001f34347cf00] Failed to update header with correct filesize.
    Error writing trailer of rtmp ://live-api-s.facebook.com:80/rtmp/xxxxxx : Error number -10053 occurred

    Any help would be appreciated.

    Expected result is to stream continuously without losing the connection , even sending the last available image continuously.

  • Broadcast webcamer over ffserver and ffmpeg

    8 février 2019, par AkBako

    I setup the ffserver on Ubuntu 16.04 UPU. I did some streami from a .webm video fileы to the site. Now I can’t start streaming from the webcam of my laptop and show it on the website. Please need help.

    Technical info :

    Client-site:Windows 10

    WebCamera : YUV 4:2:2 640x480 fps 30.0

    Server-site : VPS Server Ubuntu 16.04

    ffserver.conf

    HTTPPort 8090
    
HTTPBindAddress 0.0.0.0
    
MaxHTTPConnections 2000
    
MaxClients 1000
    
MaxBandwidth 500000
    
CustomLog -
    
NoDaemon
    
RTSPPort 7654
    
RTSPBindAddress 0.0.0.0
    
<feed>               # This is the input feed where FFmpeg will send
    
   File ./feed1.ffm            # video stream.
    
   FileMaxSize 1G              # Maximum file size for buffering video
    
</feed>
    

    
<stream>
    
    Feed feed1.ffm
    
    Format webm
    
    # Audio settings
    
    AudioCodec vorbis
    
    AudioBitRate 64             # Audio bitrate
    

    
    # Video settings
    
    VideoCodec libvpx
    
    VideoSize 640x480          # Video resolution
    
    VideoFrameRate 30           # 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 400 
    
</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>
    

    
<redirect>    # Just an URL redirect for index
    
   # Redirect index.html to the appropriate site
    
   URL http://XX.XXX.XXX.XXX
    
</redirect>

    Run code on Windows :

    ffmpeg -f dshow -i video="USB2.0 HD UVC WebCam" -video_size 640x480 -rtbufsize 702000k -framerate 30 -pixel_format yuyv422 -f mpegts http://XXX.XXX.XX.XX:8090/feed1.ffm

    Error message on Windows :

    Input #0, dshow, from 'video=USB2.0 HD UVC WebCam':
    
  Duration: N/A, start: 5326.566000, bitrate: N/A
    
    Stream #0:0: Video: mjpeg (Baseline) (MJPG / 0x47504A4D), yuvj422p(pc, bt470bg/unknown/unknown), 1280x720, 30 fps, 30 tbr, 10000k tbn, 10000k tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> mpeg2video (native))
    
Press [q] to stop, [?] for help
    
[swscaler @ 06e5a000] deprecated pixel format used, make sure you did set range correctly
    
Output #0, mpegts, to 'http://95.183.11.180:8090/feed1.ffm':
    
  Metadata:
    
    encoder         : Lavf58.24.101
    
    Stream #0:0: Video: mpeg2video (4:2:2), yuv422p, 1280x720, q=2-31, 200 kb/s, 30 fps, 90k tbn, 30 tbc
    
    Metadata:
    
      encoder         : Lavc58.42.103 mpeg2video
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
    
av_interleaved_write_frame(): Unknown error
    
Error writing trailer of http://95.183.11.180:8090/feed1.ffm: Error number -10054 occurred
    
frame=    3 fps=0.0 q=1.6 Lsize=      46kB time=00:00:00.00 bitrate=34318545.5kbits/s speed=9.07e-05x
    
video:84kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
    
[http @ 06dd5c00] URL read error:  -10054
    
Conversion failed!

    FFserver log :

    Fri Feb  8 03:14:58 2019 178.88.140.182 - - [POST] "/feed1.ffm HTTP/1.1" 200 4096

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