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• FFMPEG didnt create .ts the second time in Process [closed]

  10 novembre 2024, par namig

  


  [matroska,webm @ 0x63b6772ed400] EBML header parsing failed
[in#0 @ 0x63b6772ed300] Error opening input : Invalid data found when processing input
Error opening input file dir/ /segment_20.webm.
Error opening input files : Invalid data found when processing input

  


  


  I try to create live server with hls and take videos form client with js 10 second , and in server I try to convert it to .ts so the first works correctly but the second and others returned this error.

  


  Here is Controller Action

  


  public async Task<iactionresult> AddStream([FromForm] IFormFile file, string streamId)&#xA;{&#xA;    if (file == null || file.Length &lt;= 0)&#xA;    {&#xA;        return BadRequest(" Invalid File.");&#xA;    }&#xA;&#xA;    var tempFilePath = Path.Combine(_env.WebRootPath &#x2B; "/temps", file.FileName);&#xA;&#xA;    try&#xA;    {&#xA;        using (var stream = new FileStream(tempFilePath, FileMode.Create))&#xA;        {&#xA;            await file.CopyToAsync(stream);&#xA;        }&#xA;&#xA;        VideoService.InitializeStream(streamId, _env.WebRootPath &#x2B; "/assets");&#xA;&#xA;        VideoService.ConvertSegmentToTs(streamId, tempFilePath, _env.WebRootPath &#x2B; $"/assets/{streamId}");&#xA;&#xA;        return Ok(new { message = "Segment başarıyla y&#xFC;klendi ve işlendi." });&#xA;    }&#xA;    catch (Exception ex)&#xA;    {&#xA;        return StatusCode(500, $"Hata oluştu: {ex.Message}");&#xA;    } &#xA;}&#xA;</iactionresult>

  


  And the static Service

  


  public static class VideoService
{
    private static readonly string ffmpegPath = "/usr/bin/ffmpeg";
    private static readonly ConcurrentDictionary m3u8Files = new ConcurrentDictionary();

    public static void InitializeStream(string streamId, string outputDirectory)
    {
        var directory = Path.Combine(outputDirectory, streamId);

        if (!Directory.Exists(directory))
            Directory.CreateDirectory(directory);

        var m3u8FilePath = Path.Combine(directory, $"{streamId}.m3u8");

        if (!File.Exists(m3u8FilePath))
        {
            File.WriteAllText(m3u8FilePath, "#EXTM3U\n#EXT-X-VERSION:3\n#EXT-X-TARGETDURATION:10\n#EXT-X-MEDIA-SEQUENCE:0\n");
            m3u8Files[streamId] = m3u8FilePath;
        }
    }

    public static void ConvertSegmentToTs(string streamId, string segmentPath, string outputDirectory)
    {
        var tsFileName = $"{streamId}_{Path.GetFileNameWithoutExtension(segmentPath)}.ts";
        var tsFilePath = Path.Combine(outputDirectory, tsFileName);

        var ffmpegArgs = $"-f webm -i \"{segmentPath}\" -c copy -f mpegts \"{tsFilePath}\"";

        using (var process = new Process())
        {
            process.StartInfo.FileName = ffmpegPath;
            process.StartInfo.Arguments = ffmpegArgs;
            process.StartInfo.RedirectStandardOutput = true;
            process.StartInfo.RedirectStandardError = true;
            process.StartInfo.UseShellExecute = false;
            process.StartInfo.CreateNoWindow = true;

            process.Start();
            process.WaitForExit();

            if (process.ExitCode == 0)
            {
                UpdateM3u8File(streamId, tsFileName, outputDirectory);
            }
            else
            {
                var error = process.StandardError.ReadToEnd();
                Console.WriteLine($"FFMPEG Error for Stream {streamId}: {error}");
            }
        }
    }

    private static void UpdateM3u8File(string streamId, string tsFileName, string outputDirectory)
    {
        if (!m3u8Files.TryGetValue(streamId, out var m3u8FilePath))
        {
            InitializeStream(streamId, outputDirectory);

            if (!m3u8Files.TryGetValue(streamId, out m3u8FilePath))
            {
                Console.WriteLine($"Error: {streamId}");
                return; 
            }
        }

        var segmentDuration = 10; 
        var entry = $"#EXTINF:{segmentDuration},\n{tsFileName}\n";

        File.AppendAllText(m3u8FilePath, entry);
    }
}


  


  How can I solve this problem ?

  


• problem using ffmpeg drawtext for rtl languge

  9 janvier 2019, par Soroush Tayyebi

  i use this command to write on a video :

   ffmpeg -i source.mp4 -vf drawtext=\"text_shaping=1:fontfile=font.ttf:
  
      text='یه نوشته فارسی!': fontcolor=black: fontsize=$font_size: box=1: boxcolor=black@0:boxborderw=0: x=(w-text_w)/2: y=(h-text_h)/2 :enable='between(t,5,10)'\"  -c:a copy -force_key_frames 0:05:00,0:6:00 end.mp4

  it work fine when i don’t have numbers and symbols(!, ?,$ and ...) in first and end of my text.
  my lang is right to left and this commmand not support rtl.
  what i must do to solve this problem ?

• Revision 30966 : eviter le moche ’doctype_ecrire’ lors de l’upgrade

  17 août 2009, par fil@… — Log

  eviter le moche ’doctype_ecrire’ lors de l’upgrade