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• How to merge special ts files to mp4 ? [closed]

  21 février 2024, par mikezang

  I have some ts files and I want to merge them to mp4, I used command as below, some of ts can be merged without any problems.

  


  ffmpeg -i 'concat:01.ts|02.ts|03.ts|' -c copy -bsf:a aac_adtstoasc 01.mp4


  


  Then I found for some ts files, I got error as below when I used the same command above, what can I do to merge these ts files ?

  


  ffmpeg version 2023-11-13-git-67a2571a55-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --pkg-config=pkgconf --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-dxva2 --enable-d3d11va --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      58. 32.100 / 58. 32.100
  libavcodec     60. 33.100 / 60. 33.100
  libavformat    60. 17.100 / 60. 17.100
  libavdevice    60.  4.100 / 60.  4.100
  libavfilter     9. 13.100 /  9. 13.100
  libswscale      7.  6.100 /  7.  6.100
  libswresample   4. 13.100 /  4. 13.100
  libpostproc    57.  4.100 / 57.  4.100
[png @ 0000028b191c1cc0] inflate returned error -3
Input #0, png_pipe, from 'concat:001.ts|002.ts|003.ts':
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: png, pal8(pc, gbr/unknown/unknown), 800x800, 25 fps, 25 tbr, 25 tbn
Output #0, mp4, to '01.mp4':
  Metadata:
    encoder         : Lavf60.17.100
  Stream #0:0: Video: png (mp4v / 0x7634706D), pal8(pc, gbr/unknown/unknown), 800x800, q=2-31, 25 fps, 25 tbr, 12800 tbn
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[out#0/mp4 @ 0000028b19260cc0] video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#0/mp4 @ 0000028b19260cc0] Output file is empty, nothing was encoded


  


  The successful ts file by ffprobe :

  


  Input #0, mpegts, from '001.ts':
  Duration: 00:00:12.04, start: 0.038000, bitrate: 942 kb/s
  Program 1
  Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn
  Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 97 kb/s


  


  The failed ts file by ffprobe :

  


  [png @ 000001e9016fe940] inflate returned error -3
Input #0, png_pipe, from '001.ts':
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: png, pal8(pc, gbr/unknown/unknown), 800x800, 25 fps, 25 tbr, 25 tbn


  


• ffmpeg - escaping special characters

  21 février 2023, par Riz

  I want to record screen using ffmpeg. Here is a simple command which I use and works fine

  


  ffmpeg -f dshow -i audio="Microphone Array (Full HD 1080P PC Camera Audio)" -f gdigrab -offset_x 0 -offset_y 0 -video_size 500x500 -framerate 30 -i desktop -pix_fmt yuv420p -vcodec libx264 -crf 28 -preset ultrafast -tune zerolatency  -movflags +faststart  "recording.mp4"


  


  But I have another USB mic (Microphone 1:2 (USB PnP Sound Device)), which has a colon ( :) in its name. When I use it for recording, it gives error

  


  [dshow @ 0000028f718db740] Malformed dshow input string.
audio=Microphone 1:2 (USB PnP Sound Device): I/O error


  


  I have tried to escape colon sign with & \ but still get same error. How to fix this ?

  


• How to scape special characters for linux, nodejs exec function

  22 février 2023, par David Chavez

  I'm running this ffmpeg command on my linux server and while I paste it into the terminal, it works just fine but as soon as I use execPromise to run the EXACT same command, it returns an error.

  


  const { exec } = require('child_process');
const { promisify } = require('util');
const execPromise = promisify(exec);

const encode = async ffmpegCode => {
    try {
        console.log(ffmpegCode) //Here I can see that the code is the
                                //exact same one than the one that works
                                //when pasted into the terminal
        await execPromise(ffmpegCode);
        return 200
    } catch (err) {
        console.log(err)
    }
}


  


  I need \: to be interpreted as such. When I type it as is, \:, the error message shows me that it interpreted it as : which is expected.

  


  If I pass in \\:, I expect it to interpret it as I need it which would be \: but the error shows me that it interprets it as \\:.

  


  \\\: is interpreted as \\: and \\\\: is interpreted as \\\\:.

  


  Part of the command passed :

  


  ...drawtext=text='timestamp \\: %{pts \\: localtime \\: 1665679092.241...

  


  Expected command :

  


  ...drawtext=text='timestamp \: %{pts \: localtime \: 1665679092.241...

  


  Error message :

  


  ...drawtext=text='timestamp \\: %{pts \\: localtime \\: 1665679092.241...

  


  How do I get /: through to the exec function ?