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• MP4 to HLS conversion error after resizing video using FFmpeg

  26 juillet 2023, par ITeptIcklyTa

  When trying to create HLS stream from original video, FFmpeg creates HLS stream without errors.

  


  ~ $ ffmpeg -i test.mp4 -f hls -hls_time 3 -hls_segment_filename seg%02d.ts stream.m3u8


  


  But when I resize video using this command, I get a timestamps warning :

  


  ~ $ ffmpeg -i test.mp4 -vf scale=426:240 test_240p.mp4
[mp4 @ 0xb400007429e52d00] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
[mp4 @ 0xb400007429e52d00] Encoder did not produce proper pts, making some up.


  


  And when creating HLS stream from resized video, I'm getting an error :

  


  ~ $ ffmpeg -i test_240p.mp4 -f hls -hls_time 3 -hls_segment_filename seg%02d.ts stream.m3u8                     ffmpeg version N-111626-g0ba719f726 Copyright (c) 2000-2023 the FFmpeg developers
  built with clang version 16.0.6
  configuration: --arch=aarch64 --as=aarch64-linux-android-clang --cc=aarch64-linux-android-clang --cxx=aarch64-linux-android-clang++ --nm=llvm-nm --pkg-config=/data/data/com.termux/files/usr/bin/pkg-config --strip=llvm-strip --cross-prefix=aarch64-linux-android- --disable-indevs --disable-outdevs --enable-indev=lavfi --disable-static --disable-symver --enable-cross-compile --enable-gnutls --enable-gpl --enable-jni --enable-lcms2 --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgme --enable-libmp3lame --enable-libopus --enable-librav1e --enable-libsoxr --enable-libsrt --enable-libssh --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-mediacodec --enable-opencl --enable-shared --prefix=/data/data/com.termux/files/usr --target-os=android --extra-libs=-landroid-glob --disable-vulkan --enable-neon --disable-libfdk-aac                                                      libavutil      58. 14.100 / 58. 14.100                  libavcodec     60. 22.100 / 60. 22.100
  libavformat    60. 10.100 / 60. 10.100                  libavdevice    60.  2.101 / 60.  2.101
  libavfilter     9. 10.100 /  9. 10.100
  libswscale      7.  3.100 /  7.  3.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_240p.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf60.10.100
  Duration: 00:00:10.01, start: 0.000000, bitrate: 178 kb/s
  Stream #0:0[0x1](und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709/bt709/smpte170m, progressive), 426x240, 44 kb/s, SAR 640:639 DAR 16:9, 25 fps, 25 tbr, 12800 tbn (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 02/24/2023.
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.22.100 h264_mediacodec
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 02/24/2023.
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_mediacodec))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[h264_mediacodec @ 0xb400007da1f2ac00] Use 1 as the default MediaFormat i-frame-interval, please set gop_size properly (>= fps)
[h264_mediacodec @ 0xb400007da1f2ac00] Mediacodec encoder doesn't support AV_CODEC_FLAG_GLOBAL_HEADER. Use extract_extradata bsf when necessary.
Output #0, hls, to 'stream.m3u8':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf60.10.100
  Stream #0:0(und): Video: h264, yuv420p(tv, bt709/bt709/smpte170m, progressive), 426x240 [SAR 640:639 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 90k tbn (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 02/24/2023.
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.22.100 h264_mediacodec
  Stream #0:1(und): Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 02/24/2023.
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.22.100 aac
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.25 bitr[hls @ 0xb400007da1f27d00] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
[hls @ 0xb400007da1f27d00] Encoder did not produce proper pts, making some up.
[mpegts @ 0xb400007da1f29100] H.264 bitstream error, startcode missing, size 0
[hls @ 0xb400007da1f27d00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 3600 >= 3600
[vost#0:0/h264_mediacodec @ 0xb400007da200a000] Error submitting a packet to the muxer: Invalid argument
[out#0/hls @ 0xb400007da1eaa6c0] Error muxing a packet
[hls @ 0xb400007da1f27d00] Opening 'seg00.ts' for writing
[hls @ 0xb400007da1f27d00] Opening 'stream.m3u8.tmp' for writing
[out#0/hls @ 0xb400007da1eaa6c0] video:2kB audio:5kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
frame=    3 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.41 bitrate=N/A speed=3.39x
[aac @ 0xb400007da2051400] Qavg: 32468.840
Conversion failed!
~ $


  


  I tried to build FFmpeg from GitHub and install FFmpeg from repositories, and I'm still getting this error.

  


• Publishing an RTSP stream from my IP camera to a remote MediaMTX / RTSP Simple Server using FFmpeg and Azure [closed]

  28 janvier 2024, par cmd

  Using FFmpeg, I am trying to publish the RTSP stream from my IP camera to an Azure VM running a MediaMTX instance https://github.com/bluenviron/mediamtx. My intention is for the stream to be accessible from other remote connections by connecting to the VM.

  


  I was able to setup a local MediaMTX server on my laptopm, and publish the stream using this FFmpeg command :

  


  ffmpeg -i rtsp://<camera username="username">:<camera password="password">@<camera local="local" ip="ip">:554 -c:v copy -c:a copy -f rtsp rtsp://<laptop local="local" ip="ip">:8554/stream/mystream&#xA;</laptop></camera></camera></camera>

  


  This worked fine, as I was able to connect to the MediaMTX server in VLC player to view the stream. However, I have setup an Azure VM running Windows 10, and run the same MediaMTX instance on it. I have attempted to publish the RTSP stream from the IP camera using the same command, but with the Laptop IP replaced with the address of the VM, but this doesn't work.

  


  I have disabled the Windows Firewall on my laptop and the VM, but the stream can still not be published. I have also tried the same approach by running the MediaMTX server on my friend's computer on his network, and adding the necessary port forwarding rules to his router. I am unable to edit any rules on the router where I am living however.

  


  What else might be causing this issue, and is there any way to publish the IP camera's RTSP to a remote server where it could then be read ?

  


• Live streaming doesnt work

  13 février 2013, par John Smith

  Im using FFmpeg to capture my screen :

  ffmpeg -f dshow -i video="UScreenCapture" -r 5 -s 640x480 -acodec libmp3lame -ac 1 -vcodec mpeg 4 -vtag divx -q 10 -f mpegts tcp://127.0.0.1:1234

  so let it stream to somewhere. The accepter script :

   error_reporting(E_ALL); /* Allow the script to hang around waiting for connections. */
  
   set_time_limit(30); /* Turn on implicit output flushing so we see what we're getting as it comes in. */
  
   ob_implicit_flush();
  
  
  
  
  
  $address = '127.0.0.1';
  
  $port = 1234;
  
  $outfile = dirname(__FILE__)."/output.flv";
  
  $ofp = fopen($outfile, 'wb');
  
  
  
   if (($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) { echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n"; sleep (5); die; }
  
   if (socket_bind($sock, $address, $port) === false) { echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n"; sleep (5); die; }
  
   if (socket_listen($sock, 5) === false) { echo "socket_listen() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n"; sleep (5); die; }
  
   if (($msgsock = socket_accept($sock)) === false) { echo "socket_accept() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n"; sleep (5); break; }
  
   do {
  
      $a = '';
  
      socket_recv ($msgsock, $a, 65536, MSG_WAITALL);
  
      fwrite ($ofp, $a);
  
      //echo strlen($a)."\r\n";
  
   } while (true);

  it seems to save the stuff to the disk OK. Now here comes the html :

  I dont really know how to do this, but based on an example :

  <video src="/output.flv"></video>

  but it doesnt do anything. And if I want to stream the live incoming stuff, then whats the matter ?