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• FFMPEG video merging. Only first video shows

  13 mars 2019, par James Ashworth

  I’m trying to put 7 second intro video before another one, but I keep having trouble with it. I don’t need to do anything else then add intros to videos.

  This is what I’m currently getting.

  (for %i in (*.mp4) do @echo file '%i') > mylist.txt
  
  
  
  ffmpeg -f concat -safe 0 -i mylist.txt -c copy output.mp4
  
  
  
  
  
  
  
  
  
  
  
      C:\Users\Business>cd desktop
  
  
  
  C:\Users\Business\Desktop>cd testfile
  
  
  
  C:\Users\Business\Desktop\Testfile>(for %i in (*.mp4) do @echo file '%i') > mylist.txt
  
  
  
  C:\Users\Business\Desktop\Testfile>
  
  C:\Users\Business\Desktop\Testfile>(for %i in (*.mp4) do @echo file '%i') > mylist.txt
  
  
  
  C:\Users\Business\Desktop\Testfile>ffmpeg -f concat -i mylist.txt -c copy output.mp4
  
  ffmpeg version N-93308-g1144d5c96d Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 8.2.1 (GCC) 20190212
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt  
  
  
  
  libavutil      56. 26.100 / 56. 26.100
  
    libavcodec     58. 47.103 / 58. 47.103
  
    libavformat    58. 26.101 / 58. 26.101
  
    libavdevice    58.  6.101 / 58.  6.101
  
    libavfilter     7. 48.100 /  7. 48.100
  
    libswscale      5.  4.100 /  5.  4.100
  
    libswresample   3.  4.100 /  3.  4.100
  
    libpostproc    55.  4.100 / 55.  4.100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 00000261c7072c00] Auto-inserting h264_mp4toannexb bitstream filter
  
  Input #0, concat, from 'mylist.txt':
  
    Duration: N/A, start: -0.042667, bitrate: 2453 kb/s
  
      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 2325 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      encoder         : Lavf58.26.101
  
      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, q=2-31, 2325 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  frame=110209 fps=3246 q=-1.0 Lsize= 1103461kB time=01:01:17.41 bitrate=2458.1kbits/s speed= 108x
  
  video:1042171kB audio:57353kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.358030%
  
  
  
  C:\Users\Business\Desktop\Testfile>

  It shows the 7 second video as the whole video. Someway i got it to change after 7 seconds, but then the rest of the video was really buddy.

• Video Streaming shows not working in Micorsoft Edge

  22 novembre 2018, par Ragesh S

  I am newbi in using Video streaming in ASP.Net MVC project. I have a video library webpplication, most of the videos are .mp4 format. Please see my code below.

  Code

  public HttpResponseMessage Get(string filename)
  
      {
  
          var filePath = new FileStreameHelpers().GetFilePath(filename);
  
          if (!File.Exists(filePath))
  
              return new HttpResponseMessage(HttpStatusCode.NotFound);
  
  
  
          var response = Request.CreateResponse();
  
          response.Headers.AcceptRanges.Add("bytes");
  
  
  
          var streamer = new FileStreameHelpers();
  
          streamer.FileInfo = new FileInfo(filePath);
  
          response.Content = new PushStreamContent(streamer.WriteToStream, new FileStreameHelpers().GetMimeType(Path.GetExtension(filePath)));
  
  
  
          RangeHeaderValue rangeHeader = Request.Headers.Range;
  
          if (rangeHeader != null)
  
          {
  
              long totalLength = streamer.FileInfo.Length;
  
              var range = rangeHeader.Ranges.First();
  
              streamer.Start = range.From ?? 0;
  
              streamer.End = range.To ?? totalLength - 1;
  
  
  
              response.Content.Headers.ContentLength = streamer.End - streamer.Start + 1;
  
              response.Content.Headers.ContentRange = new ContentRangeHeaderValue(streamer.Start, streamer.End,
  
                  totalLength);
  
              response.StatusCode = HttpStatusCode.PartialContent;
  
          }
  
          else
  
          {
  
              response.StatusCode = HttpStatusCode.OK;
  
          }
  
  
  
          return response;
  
      }
  
    public async Task WriteToStream(Stream outputStream, HttpContent content, TransportContext context)
  
      {
  
          try
  
          {
  
              var buffer = new byte[6553600];
  
              using (var video = FileInfo.OpenRead())
  
              {
  
                  if (End == -1)
  
                  {
  
                      End = video.Length;
  
                  }
  
                  var position = Start;
  
                  var bytesLeft = End - Start + 1;
  
                  video.Position = Start;
  
                  while (position <= End)
  
                  {
  
                      var bytesRead = video.Read(buffer, 0, (int)Math.Min(bytesLeft, buffer.Length));
  
                      await outputStream.WriteAsync(buffer, 0, bytesRead);
  
                      position += bytesRead;
  
                      bytesLeft = End - position + 1;
  
                  }
  
              }
  
          }
  
          catch (Exception ex)
  
          {
  
              // fail silently
  
              Utilities.SaveException("FileStreameHelpers - WriteToStream", ex);
  
          }
  
          finally
  
          {
  
              outputStream.Close();
  
          }
  
      }

  it works fine in Firefox and Chrome but it shows error in Microsoft Edge browser like below.

  HTML

  <video width="320" height="240" controls="controls">
  
      <source src="/api/Media/Get?filename=SampleVideo_1280x720_1mb.mp4" type="video/mp4">
  
      Your browser does not support the video tag.
  
  </source></video>

  The remote host closed the connection. The error code is 0x800703E3.

  Please advice.

• ffmpeg stream encoding out produce a stream shows different program on each start

  15 octobre 2018, par Ryan Philip

  I am using ffmpeg for almost one year, my stream recently started behaving badly.

  The lines on ffmpeg screen started running crazy fast when restreaming it, causing more CPU (with no encoding). I have mapped the stream to select only one stream. But the problem is even with mapping I am getting different program each time when it is played.

  Also each program it is playing for less than a minute. There is no specific error message showing on ffmpeg screen. Only the output is behaving badly.

  I even tried ffmpeg version 3.3, 3.4 and 4.0 with same results.

  It has so many resolution streams, so i selected only 33 (video) and 34 (audio), the ones with highest resolution.

  ffmpeg -i "http://insourceip/stream.m3u8" -err_detect explode  -c copy -map 0:33? -map 0:34?  -hls_time 10 -hls_list_size 6 -hls_wrap 10 -start_number 1 out/music.m3u8

  Please help me with this.

  Below is the output : the one after (No longer receiving playlist 8) start running crazy when started.

  Program 11
  
      Metadata:
  
        variant_bitrate : 1088000
  
      Stream #0:33: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 640x480 [SAR 12:11 DAR 16:11], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Metadata:
  
        variant_bitrate : 1088000
  
      Stream #0:34: Audio: aac (LC) ([15][0][0][0] / 0x000F), 32000 Hz, stereo, fltp
  
      Metadata:
  
        variant_bitrate : 1088000
  
      Stream #0:35: Data: timed_id3 (ID3  / 0x20334449)
  
      Metadata:
  
        variant_bitrate : 1088000
  
  [hls @ 0x7a64120] Opening '/music1.ts' for writing
  
  Output #0, hls, to '/music.m3u8':
  
    Metadata:
  
      encoder         : Lavf57.71.100
  
      Stream #0:0: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 640x480 [SAR 12:11 DAR 16:11], q=2-31, 25 fps, 25 tbr, 90k tbn, 25 tbc
  
      Metadata:
  
        variant_bitrate : 1088000
  
      Stream #0:1: Audio: aac (LC) ([15][0][0][0] / 0x000F), 32000 Hz, stereo, fltp
  
      Metadata:
  
        variant_bitrate : 1088000
  
      Stream #0:2: Data: timed_id3 (ID3  / 0x20334449)
  
      Metadata:
  
        variant_bitrate : 1088000
  
  Stream mapping:
  
    Stream #0:33 -> #0:0 (copy)
  
    Stream #0:34 -> #0:1 (copy)
  
    Stream #0:35 -> #0:2 (copy)
  
  Press [q] to stop, [?] for help
  
  [hls,applehttp @ 0x3d57120] No longer receiving playlist 10
  
  [hls,applehttp @ 0x3d57120] No longer receiving playlist 1
  
  [hls,applehttp @ 0x3d57120] No longer receiving playlist 3
  
  [hls,applehttp @ 0x3d57120] No longer receiving playlist 5
  
  [hls,applehttp @ 0x3d57120] No longer receiving playlist 7
  
  [hls,applehttp @ 0x3d57120] No longer receiving playlist 9
  
  [hls,applehttp @ 0x3d57120] No longer receiving playlist 0
  
  [hls,applehttp @ 0x3d57120] No longer receiving playlist 2
  
  [hls,applehttp @ 0x3d57120] No longer receiving playlist 4
  
  [hls,applehttp @ 0x3d57120] No longer receiving playlist 6
  
  [hls,applehttp @ 0x3d57120] No longer receiving playlist 8
  
  ***[hls,applehttp @ 0x3d57120] Opening 'FORMATED/i/MUSIC_1@13394/segment153957897_1_av-b.ts' for reading
  
  [hls,applehttp @ 0x3d57120] Opening 'FORMATED/i/MUSIC_1@13394/segment153957898_1_av-b.ts' for reading
  
  [hls @ 0x7a64120] Opening '/music2.ts' for writing
  
  [hls @ 0x7a64120] Opening '/music.m3u8.tmp' for writing
  
  [hls,applehttp @ 0x3d57120] Opening 'FORMATED/i/MUSIC_1@13394/segment153957899_1_av-b.ts' for reading
  
  [hls @ 0x7a64120] Opening '/music3.ts' for writing***