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• FFMpeg doesn't make a blued video on S3

  15 juin 2022, par uekyo

  I want to make a blued video but after running the below code, 48 bite file just appears. I tried mp3 file to transfer to wave then it worked well. Do you guys have any suggestions to make this solution ?

  


  import json
import os
import boto3

def lambda_handler(event, context):
    # boto3 client
    s3 = boto3.client("s3")

    # replace below configuration
    bucket_name = "testestest"
    key = "video1.mp4"

    # downloading file to /tmp directory within lambda
    lambda_file_path = f"/tmp/{key}"
    lambda_output_file_path = "/tmp/trancoded_english_audio.mp4"

    # downloading file
    s3.download_file(bucket_name, key, lambda_file_path)

    # transcoding
    os.system(f'/opt/ffmpeglib/ffmpeg -i {lambda_file_path} -vf "gblur=sigma=50" -c:a copy {lambda_output_file_path}')

    # uploading transcoded file
    s3.upload_file(
        Bucket=bucket_name,
        Key=lambda_output_file_path.split("/")[-1],
        Filename=lambda_output_file_path,
    )

    return {"statusCode": 200, "body": json.dumps("Hello from Srce Cde!")}


  


• How can i make ffmpeg pick the right file ?

  20 septembre 2019, par A Person

  I’ve been trying to make ffmpeg pick up files from a folder and merge them together.

  The code i have for merging the audio and video is :

  ffmpeg -i video.m2v -i audio.wav -c copy -map 0:0 -map 1:0 %orginal_name%.mxf

  This works but i chnage the %origninal_name to the name of the video file.

  Im currently using a watch folder in FFAStrans to pick the video file up and using custom ffmpeg comand to run the command. The problem i’m having is that i have to specify the video and audio file name.

  The folder has over 100 video and audio file and they have the same name so if ita s food show it would be

  category_name_episode_HighRandomVariable.m2v for video
  category_name_episode_HighRandomVariableDifferentFromVideo.wav for audio
  example of this is
  food_johnsCooking_EP1_High745548.m2v and
  food_johnsCooking_EP1_High8547885874.wav

  im using regext as well but dont really know how to use in in FFAStrans but the command looks like this.
  $regext("%s_original_name%","(.+)_High")

  Does anyone know how i can set it up so i can get the correct audio and video file to merge and at the same time make sure all other videos and audio files are done without me having to change the ffmpeg -i to the next video and audio name.

  Any Help or advice is appreciated.

  Many thanks in advance.

• Fastest way to combine an image and audio file to make a video using ffmpeg

  10 septembre 2020, par Ritik Sahu Student

  i am using ffmpeg to combine an image and audio to make video with this command from my python program

  


  process = subprocess.Popen('ffmpeg -loop 1 -i "{picture}" -i "{audio}" -c:v libx264 -tune stillimage -c:a aac -b:a 192k -pix_fmt yuv420p -shortest "{out_path}"'.format(picture=picture, audio=audio, out_path=out_path), stdout=subprocess.PIPE, shell=False)


  


  but it is taking very long almost 30-45 minutes on my pc with specifications 1GB Ram and intel xenon processor. is there any way to make this process faster
i am ready to compromise the quality (decent).