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• ffmpeg : LIVE HLS Playback getting delayed over time

  31 juillet 2020, par Krishnakumar

  We are converting UDP Input to Live HLS output and pushing the chunks to a webdav server. Initial playback works fine, But the playback was delayed by almost an hour, when we checked after 15 hours. Not sure this is caused due to network as we use internet to push the chunks. Below is the ffmpeg command used.

  


  ffmpeg -i udp://230.1.1.15:10000?fifo_size=10000000&overrun_nonfatal=1 -filter_complex [i:0xd49]yadif,setdar=256/144[v0];[i:0xd49]yadif,setdar=512/288[v1];[i:0xd49]yadif,setdar=640/360[v2];[i:0xd49]yadif,setdar=1280/720[v3] -f hls -map i:0xd4a -af aresample=async=1:min_hard_comp=0.100000:first_pts=0 -c:a:0 libfdk_aac -b:a:0 48000 -ar:0 48000 -map [v0] -b:v:0 100000 -maxrate:v:0 100000 -minrate:v:0 100000 -bufsize:v:0 200000 -s:v:0 256x144 -r:0 25 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -c:v:0 libx264 -profile:v:0 baseline -level:v:0 3.0 -preset:v:0 fast -nal-hrd cbr -g 50 -map i:0xd4a -af aresample=async=1:min_hard_comp=0.100000:first_pts=0 -c:a:1 libfdk_aac -b:a:1 48000 -ar:1 48000 -map [v1] -b:v:1 200000 -maxrate:v:1 200000 -minrate:v:1 200000 -bufsize:v:1 400000 -s:v:1 512x288 -r:1 25 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -c:v:1 libx264 -profile:v:1 baseline -level:v:1 3.0 -preset:v:1 fast -nal-hrd cbr -g 50 -map i:0xd4a -af aresample=async=1:min_hard_comp=0.100000:first_pts=0 -c:a:2 libfdk_aac -b:a:2 64000 -ar:2 48000 -map [v2] -b:v:2 700000 -maxrate:v:2 700000 -minrate:v:2 700000 -bufsize:v:2 1400000 -s:v:2 640x360 -r:2 25 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -c:v:2 libx264 -profile:v:2 baseline -level:v:2 3.0 -preset:v:2 fast -nal-hrd cbr -g 50 -map i:0xd4a -af aresample=async=1:min_hard_comp=0.100000:first_pts=0 -c:a:3 libfdk_aac -b:a:3 64000 -ar:3 48000 -map [v3] -b:v:3 1000000 -maxrate:v:3 1000000 -minrate:v:3 1000000 -bufsize:v:3 2000000 -s:v:3 1280x720 -r:3 25 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -c:v:3 libx264 -profile:v:3 high -level:v:3 4.0 -preset:v:3 fast -nal-hrd cbr -g 50 -var_stream_map a:0,v:0,name:148k a:1,v:1,name:248k a:2,v:2,name:764k a:3,v:3,name:1064k -master_pl_name master.m3u8 -hls_list_size 3 -hls_time 6 -hls_segment_filename https://usr:pass@example.com:8043/httppush/media_%v_%03d.ts -hls_flags delete_segments+independent_segments+discont_start https://usr:pass@example.com:8043/httppush/playlist_%v.m3u8


  


  FFMPEG V4.3

  


  ffmpeg version 4.3 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-36)
  configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --extra-libs=-lpthread --extra-libs=-lm --bindir=/root/bin --enable-gpl --enable-libfdk_aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree --enable-openssl
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100


  


  With Split Filter :

  


  ffmpeg -i "udp://230.1.1.15:10000?fifo_size=10000000&overrun_nonfatal=1" -filter_complex "[i:0xd49]yadif[v];[v]split=4[1out1][1out2][1out3][1out4];[1out1]setdar=256/144[v0];[1out2]setdar=512/288[v1];[1out3]setdar=640/360[v2];[1out4]setdar=1280/720[v3];[i:0xd4a]aresample=async=1:min_hard_comp=0.100000:first_pts=0[a];[a]asplit=4[a0][a1][a2][a3]" -f hls -map [a0] -c:a:0 libfdk_aac -b:a:0 48000 -ar:0 48000 -map [v0] -b:v:0 100000 -maxrate:v:0 100000 -minrate:v:0 100000 -bufsize:v:0 200000 -s:v:0 256x144 -r:0 25 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -c:v:0 libx264 -profile:v:0 baseline -level:v:0 3.0 -preset:v:0 fast -nal-hrd cbr -g 50 -map [a1] -c:a:1 libfdk_aac -b:a:1 48000 -ar:1 48000 -map [v1] -b:v:1 200000 -maxrate:v:1 200000 -minrate:v:1 200000 -bufsize:v:1 400000 -s:v:1 512x288 -r:1 25 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -c:v:1 libx264 -profile:v:1 baseline -level:v:1 3.0 -preset:v:1 fast -nal-hrd cbr -g 50 -map [a2] -c:a:2 libfdk_aac -b:a:2 64000 -ar:2 48000 -map [v2] -b:v:2 700000 -maxrate:v:2 700000 -minrate:v:2 700000 -bufsize:v:2 1400000 -s:v:2 640x360 -r:2 25 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -c:v:2 libx264 -profile:v:2 baseline -level:v:2 3.0 -preset:v:2 fast -nal-hrd cbr -g 50 -map [a3] -c:a:3 libfdk_aac -b:a:3 64000 -ar:3 48000 -map [v3] -b:v:3 1000000 -maxrate:v:3 1000000 -minrate:v:3 1000000 -bufsize:v:3 2000000 -s:v:3 1280x720 -r:3 25 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -c:v:3 libx264 -profile:v:3 high -level:v:3 4.0 -preset:v:3 fast -nal-hrd cbr -g 50 -var_stream_map "a:0,v:0,name:148k a:1,v:1,name:248k a:2,v:2,name:764k a:3,v:3,name:1064k" -master_pl_name master.m3u8 -hls_list_size 3 -hls_time 6 -hls_segment_filename https://usr:pass@example.com:8043/httppush/media_%v_%03d.ts -hls_flags delete_segments+independent_segments+discont_start https://usr:pass@example.com:8043/httppush/playlist_%v.m3u8


  


• Add watermark in video with Google Cloud function python

  26 septembre 2020, par Dharmeshsharma

  I am adding watermark in uploaded video by http google cloud function but my code is return on ffmpeg non zero. my python code

  


  import os
from google.cloud import storage
from subprocess import check_output
from videoprops import get_video_properties


def hello_world(request):

client = storage.Client()
bucket = client.get_bucket('bucket_name')
request_json = request.get_json()
req_data = request.get_json()
name = req_data['file']
videofile_name = req_data['file_name']
os.makedirs('/tmp/'+os.path.dirname(name), exist_ok=True)
file_name = '/tmp/' + name
output_file_name = '/tmp/' + name.split('.')[0] + '_.'+name.split('.')[1]
print(output_file_name)
logo_path = '/temp/watermark.png'
logo_name = 'watermark.png'
print('logo found')

print(file_name)

try:
    os.remove(file_name)
except OSError:
    pass

try:
    os.remove(logo_path)
except OSError:
    pass

print("File has been removed")

# Downloading the video to the cloud functions
blob = bucket.get_blob(name)
blob.download_to_filename(file_name)

blob_logo = bucket.get_blob(logo_name)
blob_logo.download_to_filename(logo_path)

print("Video Downloaded")

props = get_video_properties(file_name)

if os.path.exists(file_name):
    print("NEW MP4 EXISTS")
    #   check_output('ffmpeg  -itsoffset -4  -i '+file_name+' -vcodec mjpeg -vframes 1 -an -f rawvideo -s '+str(props['width'])+'x'+str(props['height'])+' '+thumbnail_file_name, shell=True)
    #   thumbnail_blob = bucket.blob(os.path.dirname(name)+'/thumbnail.jpg')
    #   thumbnail_blob.upload_from_filename(thumbnail_file_name)
    # 19-7-2020
    check_output('ffmpeg  -i '+file_name+' -i '+logo_path +
                 ' -filter_complex overlay=10:10 -codec:a copy -preset ultrafast -async 1 '+output_file_name, shell=True)
    thumbnail_blob = bucket.blob(
        os.path.dirname(name) + '/'+videofile_name)
    thumbnail_blob.upload_from_filename(output_file_name)
    # -------------------------------------
else:
    print("MP4 not created")

print("uploaded")


  


  In this code accessing video add watermark also accessing from bucket and applying with ffmpeg and uploading.

  


  error is :-

  


  raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError : Command 'ffmpeg -i /tmp/Upload/Video/1060/ad69ec74-49db-4fdb-b118-d23b9468a7b8.mp4 -i /temp/watermark.png -filter_complex overlay=10:10 -codec:a copy -preset ultrafast -async 1 /tmp/Upload/Video/1060/ad69ec74-49db-4fdb-b118-d23b9468a7b8_.mp4' returned non-zero exit status 1.

  


• Ffmpeg invalid data when trying to merge videos

  30 juillet 2020, par Luka Milivojevic

  I have a below function for merging videos in Python without re-encoding using FFmpeg :

  


  def merge():
    """
    This function merges a group of videos into one long video.
    It is used for merging parts that are cut from original video into a new one.
    The videos are merged using ffmpeg and for the ffmpeg
    to use the concat method on them, the video names must be put inside
    the vidlist.txt file.
    New video is saved to the file named output.mp4.
    """
    command = "ffmpeg -hide_banner -loglevel error -f concat -safe 0 -i vidlist.txt -c copy output.mp4"
    # merge multiple parts of the video
    subprocess.call(command, shell=True)


  


  I store paths to videos to be merged inside a vidlist.txt file which looks like :

  


  file 'out11.mp4'
file 'out21.mp4'


  


  But, I am getting the following error :

  


  vidlist.txt: Invalid data found when processing input


  


  Here is the report file :

  


  ffmpeg started on 2020-07-30 at 20:23:53
Report written to "ffmpeg-20200730-202353.log"
Log level: 48
Command line:
ffmpeg -hide_banner -f concat -safe 0 -i "C:\\Users\\miliv\\videocutter\\utils\\vidlist.txt" -c copy output.mp4 -report
Splitting the commandline.
Reading option '-hide_banner' ... matched as option 'hide_banner' (do not show program banner) with argument '1'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'concat'.
Reading option '-safe' ... matched as AVOption 'safe' with argument '0'.
Reading option '-i' ... matched as input url with argument 'C:\Users\miliv\videocutter\utils\vidlist.txt'.
Reading option '-c' ... matched as option 'c' (codec name) with argument 'copy'.
Reading option 'output.mp4' ... matched as output url.
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option hide_banner (do not show program banner) with argument 1.
Applying option report (generate a report) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input url C:\Users\miliv\videocutter\utils\vidlist.txt.
Applying option f (force format) with argument concat.
Successfully parsed a group of options.
Opening an input file: C:\Users\miliv\videocutter\utils\vidlist.txt.
[concat @ 000001aaafb8e400] Opening 'C:\Users\miliv\videocutter\utils\vidlist.txt' for reading
[file @ 000001aaafb8f500] Setting default whitelist 'file,crypto,data'
[AVIOContext @ 000001aaafb97700] Statistics: 0 bytes read, 0 seeks
C:\Users\miliv\videocutter\utils\vidlist.txt: Invalid data found when processing input