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• ffmpeg 'av_seek_frame()' not work in bink video

  19 juillet 2020, par ghoflvhxj

  I'm trying to play video in my game by using ffmpeg-avformatlib library.

  


  'av_seek_frame()' work correctly when open '.avi' file.

  


  but if open .bik file, it's not work however the function return 0(success) and seek to 0 frame.

  


  anyone who know about this problem ? :( please tell me please...

  


  void CMovie::Play(const Time startFrame, const Time endFrame, const bool loop/* = false*/)
{
    ...
    if (m_bStart)
    {
        av_seek_frame(GetFormatContext(), GetVideoStreamIndex(), startFrame, AVSEEK_FLAG_FRAME);
        m_bStart = false;
    }
    ...
}


  


  i uploaded sample video player and video which call 'av_seek_frame()' to seek.

  


  play fire.bik and click left or right button, you can see seek to 0 frame. it's same as my program.

  


  check it please.
https://drive.google.com/file/d/1DVrX3EOzjxSfEA4EYpeSREaE2RLhB28Q/view?usp=sharing

  


• using Ffmpeg create fast, maintain quality and compress video(Mp4).I need convert more fast and best quality with compressed

  12 février 2019, par amit kumar

  I need help to convert lasrge size of Mp4 file in compressed and maintaine quality with fast conversion speed.

  I have a Mp4 file whose size is 235 MB but i need to compress and maintain quality and convert without taking too much time.

  But when i use this command to create that all thing they are taking 4 to 5 min time and quality is very low whereas the size is compressed (It becomes 32 Mb).
  So, can any one help me to perform this operation.

     1).  "-i 503148_inn.mp4 -codec:a copy -vcodec libx264 -crf 24 503148.mp4"
  
  
  
     2).  "-i 503148_inn.mp4 -codec:a copy -preset ultrafast -vcodec h264 -b:v 
  
         1000k -acodec mp3 503148.mp4"

  whereas i am sending the file URL where you all are download and test the file.
  https://drive.google.com/file/d/1GMyHHpz5QOzDM0rNBGHkiz_mw4OE-0LD/view ?
  usp=sharing

• How to fix call lib ffmpeg by c#

  20 février 2017, par Thang Tran

  string _a= -i "D:_InputFolder\Jamaican man talking the truth about #zika virus.mp4" -filter_complex "[0:a]atempo=0.9,volume=1.6,asetrate=r=44100*33.6/30,atempo=30/33.6,highpass=f=400,lowpass=f=4100,earwax,biquad,compensationdelay,equalizer=f=222:width_type=o:width=2:g=5,equalizer=f=444:width_type=h:width=220:g=5 ; setpts=PTS/0.9" -vcodec libx264 -pix_fmt yuv420p -r 30 -g 60 -b:v 1400k -profile:v main -level 3.1 -acodec libmp3lame -b:a 128k -ar 44100 -metadata title="" -metadata artist="" -metadata album_artist="" -metadata album="" -metadata date="" -metadata track="" -metadata genre="" -metadata publisher="" -metadata encoded_by="" -metadata copyright="" -metadata composer="" -metadata performer="" -metadata TIT1="" -metadata TIT3="" -metadata disc="" -metadata TKEY="" -metadata TBPM="" -metadata language="eng" -metadata encoder="" -threads 0 -preset superfast "D:_OutputFolder\videoOutput.mp4"

  -----------this is the code goi goi sua sound in c # error

  string _b= -i "D:_InputFolder\Jamaican man talking the truth about #zika virus.mp4" -acodec pcm_u8 -ar 22050 "D:_OutputFolder\videoOutput.wav"
  — with code editing video style is back.

  file class run ffmpeg
  call c# :
  string _result = ffmpeg.RunCommand(_b) ;//wordless

  string _result2 = ffmpeg.RunCommand(_a) ;//error

  file class call ffmpeg :

  -file project demo error :
  https://drive.google.com/open?id=0B9dxSeLrFswjVmNGd1IzcUpncE0

  thank you and sorry if my english is the poor