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• lavu/opt : Clarify the scope of AVOptions

  24 avril 2024, par Andrew Sayers

  lavu/opt : Clarify the scope of AVOptions
  See discussion on the mailing list :
  
  https://ffmpeg.org/pipermail/ffmpeg-devel/2024-April/326054.html
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavutil/opt.h

• React-Native FFmpeg-kit VideoCompress command not working

  6 septembre 2024, par Brian

  I'm Using FFmpeg-kit's React-Native Kit

  


  And I want to encode H264 to HEVC.
But the Videotoolbox in ios not working

  


  I use "ffmpeg-kit-react-native" : "^6.0.2"
And here is my Code

  


          // hevc_videotoolbox
        await FFmpegKit.execute(`-i ${videoUri} -c:v hevc_videotoolbox  -c:a aac -tag:v hvc1 -movflags +faststart -y ${outputUri}`);
      } else {
        await FFmpegKit.execute(`-i ${videoUri} -c:v hevc_omx -c:a aac -tag:v hvc1 -movflags +faststart -y ${outputUri}`);
      }


  


  But I got the error follwed like this

  


   LOG    libavutil      58.  2.100 / 58.  2.100
 LOG    libavcodec     60.  3.100 / 60.  3.100
 LOG    libavformat    60.  3.100 / 60.  3.100
 LOG    libavdevice    60.  1.100 / 60.  1.100
 LOG    libavfilter     9.  3.100 /  9.  3.100
 LOG    libswscale      7.  1.100 /  7.  1.100
 LOG    libswresample   4. 10.100 /  4. 10.100
 LOG  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 
 LOG    Metadata:
 LOG      major_brand     :
 LOG  mp42
 LOG  
 LOG      minor_version   :
 LOG  1
 LOG  
 LOG      compatible_brands:
 LOG  isommp41mp42
 LOG  
 LOG      creation_time   :
 LOG  2024-08-29T02:42:24.000000Z
 LOG  
 LOG    Duration:
 LOG  00:00:23.10
 LOG  , start:
 LOG  0.000000
 LOG  , bitrate:
 LOG  1223 kb/s
 LOG  
 LOG    Stream #0:0
 LOG  [0x1]
 LOG  (und)
 LOG  : Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 640x360 [SAR 1:1 DAR 16:9], 1220 kb/s
 LOG  ,
 LOG  30 fps,
 LOG  30 tbr,
 LOG  600 tbn
 LOG   (default)
 LOG  
 LOG      Metadata:
 LOG        creation_time   :
 LOG  2024-08-29T02:42:24.000000Z
 LOG  
 LOG        handler_name    :
 LOG  Core Media Video
 LOG  
 LOG        vendor_id       :
 LOG  [0][0][0][0]
 LOG  
 LOG  Stream mapping:
 LOG    Stream #0:0 -> #0:0
 LOG   (h264 (native) -> hevc (hevc_videotoolbox))
 LOG  
 LOG  Press [q] to stop, [?] for help
 LOG  [hevc_videotoolbox @ 0x11af89120] Error encoding frame: -12905
 LOG  [hevc_videotoolbox @ 0x11af89120] popping: -542398533
 LOG  [vost#0:0/hevc_videotoolbox @ 0x11af88e50] Error initializing output stream: Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
 LOG  Conversion failed!


  


  How can I fix this error ?

  


  I read the
stack overflow

  


  

  1. Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height

  


  


  2.https://stackoverflow.com/questions/77734601/react-native-ffmpeg-producing-unplayable-hevc-videos-that-still-have-audio

  


  But that links doesn't work for me
I want to compress video's compressing with react-native on ios and android for reducing server cost

  


• Pyinstaller Hidden import 'ffmpeg-python' not found

  13 août 2024, par petunia rose

  Trying to convert Python scripts to exe with PyInstaller.

  


  In my code, I use ffmpeg-python :

  


  import ffmpeg
....
def ffmpeg_save_clip(self,output_video: str, clip_start: str, clip_end: str): 
  (ffmpeg 
   .input(self.file.get_videopath(), ) 
   .output(output_video, vcodec='copy', ss=clip_start, to=clip_end, acodec='copy') 
   .global_args('-y') 
   .run())


  


  So Ii call PyInstaller from terminal with related flag :

  


  pyinstaller --windowed --hidden-import "ffmpeg-python" --noconsole --icon=app.ico --name "app" main.py 


  


  I checked also :

  


  pip install ffmpeg-python 
Requirement already satisfied: ffmpeg-python in c:\python38\lib\site-packages (0.2.0) 
Requirement already satisfied: future in c:\python38\lib\site-packages (from ffmpeg-python) (0.18.3)


  


  But I get from PyInstaller :

  


  Hidden import 'ffmpeg-python' not found


  


  App works in visual-studio, but when I run pyinstaller exe and try to save clip, it freeze without response.

  


  Note : I also :

  


  


  1. try to add ffmpeg.exe into root folder of pyinstaller app.

     


  


  2. try to use .spec file with :

     


     binaries=[('C:\\ffmpeg\\bin\\ffmpeg.exe', 'ffmpeg/),('C:\\ffmpeg\\bin\\ffplay.exe','ffplay/'), ('C:\\ffmpeg\\bin\\ffprobe.exe', 'ffprobe/')],

     


  


  


  Nothing changes

  


  UPDATE
Tank you @happy_code_egg, you explained me such a things.
I tried what you said and I don't have error any more.

  


  But I can't make work ffmpeg anywhere on Pyinstaller exe.
I added a try/except block to isolate problem
(when I launch app on Visualstudio it works, but not when use exe).

  


  block is (very symilar to past def) :

  


  def ffmpeg_save_clip(self,output_video: str, clip_start: str, clip_end: str):
    input = 'C:\Users\x\Desktop\input.mp4'
    output = 'C:\Users\x\Desktop\output.mp4'
    try:
        (ffmpeg
        .input(input)
        .output(output, vcodec='copy', ss=clip_start, to=clip_end, acodec='copy')
        .global_args('-y')
        .run(capture_stdout=True))
    except Exception as e:
        self.logger.error('Video window -> ffmpeg_save_clip -> error ' + str(e))
        self.logger.error('Video window -> ffmpeg_save_clip -> input file: ' + input)
        self.logger.error('Video window -> ffmpeg_save_clip -> output file ' + output)
        raise ValueError(str(e))


  


  Note : (input and output fixed are only as simple path examples)

  


  When I open log I have :

  


  2024-08-09 11:28:50,293 - ERROR - Video window -> ffmpeg_save_clip -> error [WinError 2] File not found error
2024-08-09 11:28:50,293 - ERROR - Video window -> ffmpeg_save_clip -> input file: C:\Users\x\Desktop\input.mp4
2024-08-09 11:28:50,293 - ERROR - Video window -> ffmpeg_save_clip -> output file C:\Users\x\Desktop\ouput.mp4


  


  (I tried with '/' and also '\' to create path)
File paths are correct and, on Visualstudio, they can be processed by ffmpeg (no error), but the exe seems to not find (input or output)

  


  I tried solution described here :
Python ffmpeg won't accept path
(without effects)

  


  I found also these discussions :

  


  github ffmpeg-python issue1

  


  github ffmpeg-python issue2

  


  in both discussions seems to be a problem with ffmpeg + ffmpeg-python libs cohexistence.

  


  I tried (as said) to uninstal both and reinstall ffmpeg-python,
but nothing change.

  


  Note :
I've also three other warning during Pyinstaller :
(I write them only to complete context, but i think they have no repercussions on this problem.)

  


  57283 ERROR: Hidden import 'fiona._shim' not found
57298 WARNING: Hidden import "fiona._shim" not found!
57392 WARNING: Hidden import "importlib_resources.trees" not found!


  


  tried with :

  


  --hidden-import fiona._shim --hidden-import fiona.schema


  


  tried also with :

  


  --add-data="fiona/*;fiona”


  


  but warnings still remains.