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• FFmpeg :Run one bat after one bat

  16 avril 2018, par AniEncoder

  well I tried to run a .bat file after a file gets downloaded by qBittorrent, the .bat will change font and rename it and move it another folder.

  There are 3 problems
  1. two .bat needed to run...font & rename
  2. the file gets copied in to folders

  I need to add some gap between EngSub, if i do that, it donot shows in the file output

  Change Font
  
  for %%A in (*.mkv) do ffmpeg -i "%%A" -map 0:s:0 "%%A.ass"
  
  
  
      ren *.ass *.txt
  
  
  
      setlocal
  
  
  
      @echo off
  
      call :FindReplace "Open Sans Semibold" "CronosPro-Bold" "*.txt" 
  
      call :FindReplace "&H00020713" "&H0000003B" "*.txt" 
  
      call :FindReplace ",1.7," ",2," "*.txt" 
  
      @echo on
  
  
  
      ren *.txt *.ass
  
  
  
      for %%A in (*.mkv) do ffmpeg -i "%%A" -i "%%A".ass -c copy -map 0:0 -map 0:1 -map 1:0 -metadata:s:s:0 language=eng -disposition:s:0 default -attach CronosPro-Bold.ttf -metadata:s:3 mimetype=application/x-truetype-font "..\720p\%%A"
  
  
  
      del *.ass
  
  
  
      :FindReplace <findstr> <replstr> <file>
  
      set tmp="%temp%\tmp.txt"
  
      If not exist %temp%\_.vbs call :MakeReplace
  
      for /f "tokens=*" %%a in ('dir "%3" /s /b /a-d /on') do (
  
        for /f "usebackq" %%b in (`Findstr /mic:"%~1" "%%a"`) do (
  
          echo(&amp;Echo Replacing "%~1" with "%~2" in file %%~nxa
  
          &lt;%%a cscript //nologo %temp%\_.vbs "%~1" "%~2">%tmp%
  
          if exist %tmp% move /Y %tmp% "%%~dpnxa">nul
  
        )
  
      )
  
  
  
      del %temp%\_.vbs
  
  
  
      :MakeReplace
  
      >%temp%\_.vbs echo with Wscript
  
      >>%temp%\_.vbs echo set args=.arguments
  
      >>%temp%\_.vbs echo .StdOut.Write _
  
      >>%temp%\_.vbs echo Replace(.StdIn.ReadAll,args(0),args(1),1,-1,1)
  
      >>%temp%\_.vbs echo end with
  
  </file></replstr></findstr>

  Rename

  ren  "[HorribleSubs]*.mkv" "[hasu]*.mkv"
  
  ren  *[*  *[1090p][Eng Sub].*
  
  call "1080.bat"
  
  move [hasu]*.* ..\Trash

• Moviepy Making a CompositeVideoClip of two concatenate_videoclips

  16 avril 2018, par Max Better

  Working with the Moviepy lib and I’ve been beating my head off a wall with this last step for a while.

  GifClips = concatenate_videoclips(TheGIFs, method='compose')
  
  TextClips = concatenate_videoclips(TheTexts, method='compose')

  I’ve written both of these to separate files and they look fine. But I’m having a problem getting them to combine properly.

  I’m trying :

  FinishedClips = CompositeVideoClip([GifClips, TextClips], size=(1920,1080))

  It has the audio from TextClips and shows the GifClips but the text isn’t visible. It did show when written alone without the composite.

  It does work if I combine GifClips with a single TextClip but this doesn’t work when I need text clips to run one after another.

  I could run a CompositeVideoClip with every single TextClip and a part of the GifClips and then concatenate them all together but that doesn’t seem like the neatest way of doing this. My guess is there’s a fairly obvious argument here somewhere but looking through the docs and examples I’m struggling so far.

  Any suggestions on how I could get the TextClips clip to show up properly in a composite would be much appreciated.

• FFMPEG corrupted frame when streaming in UDP (MPEGTS)

  17 décembre 2020, par user37616

  I am working on a screen streaming program, till now, I can capture and encode my screen into a video perfectly. 
However, whenever I try to stream it over LAN, and play using Mplayer, it is able to run in simple desktop (text document, etc...) but when I try to play video the frame stated to corrupted until I quit the video (this video cause the most corrupted frame https://www.youtube.com/watch?v=1La4QzGeaaQ&t=230s)

  



  I am not really sure why when streaming, I got corrupted frame with the youtube video but when save it to a file (change URL from udp ://192.168.1.xxx:YYYY to file name C :\Test.ts) there were no corrupted frame at all.
 My Mplayer log :

  



  `V:   0.0 1563/1563 51% 43%  0.0% 0 0
[h264 @ 0000000001d04940]Invalid NAL unit 0, skipping.
[h264 @ 0000000001d04940]error while decoding MB 23 51, bytestream -64
[h264 @ 0000000001d04940]concealing 2066 DC, 2066 AC, 2066 MV errors in I frame
V:   0.0 1564/1564 51% 43%  0.0% 0 0
[h264 @ 0000000001d04940]concealing 7598 DC, 7598 AC, 7598 MV errors in P frame
V:   0.0 1652/1652 50% 43%  0.0% 0 0
[h264 @ 0000000001d04940]Invalid NAL unit 0, skipping.
[h264 @ 0000000001d04940]error while decoding MB 26 49, bytestream -55
[h264 @ 0000000001d04940]concealing 2303 DC, 2303 AC, 2303 MV errors in I frame
V:   0.0 1653/1653 50% 43%  0.0% 0 0
[h264 @ 0000000001d04940]concealing 7727 DC, 7727 AC, 7727 MV errors in P frame
V:   0.0 1741/1741 49% 43%  0.0% 0 0
[h264 @ 0000000001d04940]Invalid NAL unit 0, skipping.
[h264 @ 0000000001d04940]error while decoding MB 65 62, bytestream -57
[h264 @ 0000000001d04940]concealing 704 DC, 704 AC, 704 MV errors in I frame
V:   0.0 1742/1742 49% 43%  0.0% 0 0`


  



  Stream initialize code

  



  static void Stream_ini(const char *Url, AVFormatContext *&ofmt_ctx, AVCodec *codec, AVCodecContext *c, AVStream *&out_stream)
{
    int ret;


    avformat_alloc_output_context2(&ofmt_ctx, NULL, "mpegts", Url);
    out_stream = avformat_new_stream(ofmt_ctx, codec)
    out_stream->codec = c;
    av_dump_format(ofmt_ctx, 0, Url, 1);


    if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
        out_stream->codec->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
    if (!(ofmt_ctx->flags & AVFMT_NOFILE))
    {
        ret = avio_open(&ofmt_ctx->pb, Url, AVIO_FLAG_WRITE);
        if (ret < 0)
        {
            printf("Could not open output URL '%s'", Url);
            return;
        }
    }


    ret = avformat_write_header(ofmt_ctx, NULL);

    if (ret < 0)
    {
        printf("Error occurred when opening output URL\n");
        return;
    }


}


  



  this code will get the captured screen and send it to encoder :

  



  ScreenCap.load_screen_data(inFrame,timmer)  // this will capture screen and return the time and AVFrame for encoding
sws_scale(ctx, inFrame->data, inFrame->linesize, 0,c->height, frame->data, frame->linesize);

frame->pts = (timmer - first_frame_time) / fps;
EncodeToPkT(c, frame, pkt, ofmt_ctx,out_stream);

av_frame_free(&inFrame);


  



  the AVFrame will then be send to encoder using avcodec_send_frame() to get Packet data and av_interleaved_write_frame() to stream it over LAN.

  



  All error check are removed for simplicity

  



  Also, this is my AVCodecContex setting for the encoder :

  



  c->bit_rate = 15000000;
c->width = 1920;
c->height = 1080;
c->time_base = AVRational{ 1, 90 };
c->framerate = AVRational{ 90, 1 };
c->gop_size = 90;
c->max_b_frames = 0;
c->pix_fmt = AV_PIX_FMT_RGB0;


  



  I also notice it only happen when I increase encoder bitrate (15 MBIT) but when lower it down to (10 MBIT) it happen less. And when lower it down to 2 MBIT the corrupted frame not happen anymore however the quality is really bad.
  
I test the streaming in LAN using : PC -> cable ->laptop, PC->wireless->laptop, PC->Virtual PC, PC only (enter PC IP address in both program and Mplayer), all got the same result.

  



  I also test my DXGICap.load_screen_data function by make it output raw image and there were no corrupted image at all

  



  Does anybody have an idea why.

  



  Thank Nam.