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• Resurrecting SCD

  6 août 2010, par Multimedia Mike — Reverse Engineering

  When I became interested in reverse engineering all the way back in 2000, the first Win32 disassembler I stumbled across was simply called "Win32 Program Disassembler" authored by one Sang Cho. I took to calling it ’scd’ for Sang Cho’s Disassembler. The original program versions and source code are still available for download. I remember being able to compile v0.23 of the source code with gcc under Unix ; 0.25 is no go due to extensive reliance on the Win32 development environment.

  I recently wanted to use scd again but had some trouble compiling. As was the case the first time I tried compiling the source code a decade ago, it’s necessary to transform line endings from DOS -> Unix using ’dos2unix’ (I see that this has been renamed to/replaced by ’fromdos’ on Ubuntu).

  Beyond this, it seems that there are some C constructs that used to be valid but are now rejected by gcc. The first looks like this :

  PLAIN TEXT

  C :

  1. return (int) c = *(PBYTE)((int)lpFile + vCodeOffset) ;

  Ahem, "error : lvalue required as left operand of assignment". Removing the "(int)" before the ’c’ makes the problem go away. It’s a strange way to write a return statement in general. However, ’c’ is a global variable that is apparently part of some YACC/BISON-type output.

  The second issue is when a case-switch block has a default label but with no code inside. Current gcc doesn’t like that. It’s necessary to at least provide a break statement after the default label.

  Finally, the program turns out to not be 64-bit safe. It is necessary to compile it in 32-bit mode (compile and link with the ’-m32’ flag or build on a 32-bit system). The static 32-bit binary should run fine under a 64-bit kernel.

  Alternatively : What are some other Win32 disassemblers that work under Linux ?

• React Native How to add a text on a video using FFMPEG-react-native-kit

  14 août 2023, par MZiyad

  ---videoPath.path : from temporary storage
---outputVideoUri : temporary storage
---fontPath : my font family name
--- command
command = -y -i ${videoPath?.path} -vf "drawtext=fontfile='${fontPath}':text='My text starting at 640x360'::x=640:y=360:fontsize=24:fontcolor=white" -crf 28  -c:a aac -strict -2 -map "[0vl]" -map 2:a -shortest ${outputVideoUri} ;

  


  it's not working

  


  I need some one to help me add a water mark text to a video in react native,

  


• Created a black frame movie using ffmpeg

  28 juillet 2015, par Yunxiao Jia

  ffmpeg -i "data%04d_Projection_z_temperature_density.png" -r 47 -b 14M Projection_test_movie.mp4

  This is the command i have used, the output seems fine, but when I open it with realplayer, it just plain back. Need Help, thank you !