Sur d’autres sites (1691)

• 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!")}


  


• Video captured from x11grab is not playable in HLS format on Firefox/Safari

  27 juillet 2022, par spartanz51

  I'm trying to produce an HLS playlist from a video file.

  


  It's a file captured from a virtual screen with ffmpeg and x11grab module :

  


  ffmpeg -y -t 10 -copyts -draw_mouse 0 -framerate 24 -f x11grab -thread_queue_size 1024 -i :0 -f pulse -i default -acodec copy /tmp/test_preprocessed.mkv


  


  But when I'm trying to produce HLS from this file, the output seems not correct, as it doesn't play in Firefox/Safari, but does play in Chrome (using hls.js or https://www.hlsplayer.net/ for example)

  


  Original file : https://transfer.sh/y1a6Fv/735171b9-42a1-461a-a118-981119bdf74e_preprocessed.mkv

  


  HLS Playlist generated from this file : https://video-staging-bucket.ams3.digitaloceanspaces.com/c08584ca-4731-4820-b5c7-71f12955c0b2/stackoverflow/playlist.m3u8

  


  (Works in https://www.hlsplayer.net/ with chrome, doesn't works with Firefox/Safari)

  


  How I'm producing the HLS :

  


  ffmpeg -y \
  -t 10 \
  -i 735171b9-42a1-461a-a118-981119bdf74e_preprocessed.mkv \
  -r 24 \
  -filter_complex '[0:v]split=3[v1][v2][v3]; [v1]scale=w=1280:h=720[v1out]; [v2]scale=w=854:h=480[v2out]; [v3]scale=w=640:h=360[v3out]' \
  -map '[v1out]' -c:v:0 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:0 3200k -maxrate:v:0 3200k -minrate:v:0 2500k -bufsize:v:0 3200k -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
  -map '[v2out]' -c:v:1 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:1 1600k -maxrate:v:1 1600k -minrate:v:1 1250k -bufsize:v:1 1600k -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
  -map '[v3out]' -c:v:2 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:2 900k -maxrate:v:2 900k -minrate:v:2 700k -bufsize:v:2 900k -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
  -map a:0 -c:a:0 aac -b:a:0 96k \
  -map a:0 -c:a:1 aac -b:a:1 128k \
  -map a:0 -c:a:2 aac -b:a:2 128k \
  -f hls \
  -hls_time 4 \
  -hls_playlist_type vod \
  -hls_flags independent_segments \
  -hls_segment_type mpegts \
  -hls_segment_filename 'hls'/stream_%v_data%02d.ts \
  -master_pl_name playlist.m3u8 \
  -var_stream_map "v:0,a:0 v:1,a:1 v:2,a:2" \
  -t 10 \
  'hls'/stream_%v.m3u8


  


  Is there something I missed ? Maybe a standard ? Or maybe problem is related to PTS/DTS of my file ?
Thanks !

  


• why i dont able to store hls file to the path which is mounted to aws s3 while converting using ffmpeg ?

  16 juin 2024, par Arjit

  why i dont able to store hls file to the path which is mounted to aws s3 while converting a rtmp stream using ffmpeg ? It's work when the path is non mounted.

  


  Actually I m using nginx rtmp to run a rtmp server & I want it in the foem of hls thats why the rtmp block look like this :

  


  rtmp{
    server{
        listen 1935;
        chunk_size 4096;
        # allow publish 127.0.0.1;
        allow publish all;
        # deny publish all;

        application live{
            live on;
            record off;

            hls on;
            hls_path /tmp/hls;
            hls_fragment 10s;
            hls_playlist_length 5m;
        }
    }
}


  


  And I mounted that hls path (in this case /tmp/hls)to a aws s3 bucket using s3fs.and its not storing only when the path mounted.what can be a good solution of this ?

  


  Why this happen & what can be a good solution of this ?