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• FFmpeg Batch Merge From Input Folder

  4 septembre 2022, par Parham.8

  I have this command that works perfectly fine :

  


  echo off
mkdir inputs
mkdir outputs
set "InputFolder=%~dp0inputs"
for /R "%InputFolder%" %%i in (*.mp4) do ffmpeg -i "%%i" -c copy "outputs\%%~ni.mkv"


  


  I'm trying to make this command work as well with no success :

  


  echo off
mkdir inputs
mkdir outputs
set "InputFolder=%~dp0inputs"
for /R "%InputFolder%" %%i in (*.mp4) do (ffmpeg -n -i "%%~ni.mp4" -i "%%~ni-eng.srt" -c copy -max_interleave_delta 0 -map 0 -map -0:v:1? -map -0:v:2? -map 1 -fflags +bitexact -map_metadata:g -1 -map_metadata -1 -metadata title="" -metadata comment="" -metadata:s:v title="" -metadata:s:v language="und" -metadata:s:v VENDOR_ID="" -metadata:s:a title="" -metadata:s:a:0 language="eng" -metadata:s:a:0 handler_name="English" -metadata:s:a VENDOR_ID="" -metadata:s:s:0 language="eng" "outputs\%%~ni.mkv")


  


  Any suggestions to make it work ?

  


• I want FFMPEG generate the m3u8 file with the oldest segments instead of the newest

  4 juin 2021, par Sandi

  I have an FFmpeg command like this :

  


   ffmpeg -i test.mp4 -f hls -hls_time 2 -hls_wrap 10 -hls_list_size 5 test.m3u8


  


  Afaik, hls_wrap is the number of segments we want to store locally and hls_list_size is the segment listed in the m3u8 output file. The command above will generate 10 files of the video segment.

  


  [seg 0][seg 1][seg 2][seg 3][seg 4][seg 5][seg 6][seg 7][seg 8][seg 9]


  


  And inside the test.m3u8, of course, there are 5 newest segments listed.

  


  [seg 5][seg 6][seg 7][seg 8][seg 9]


  


  I want the test.m3u8 lists the oldest available segment instead of the newest. So it should contain :

  


  [seg 0][seg 1][seg 2][seg 3][seg 4]


  


  In another word, I want to preload the segments before it listed in test.m3u8.

  


  The idea is I want to rsync the output of that FFmpeg command to a different folder on the network. I want to avoid test.m3u8 contains a segment that not completely copied because of the large segment size.

  


  Please help me and pardon my English. Thank you very much !

  


• How to speed up m3u8 to mp4 conversion using ffmpeg

  17 décembre 2022, par Sahil Bagdi

  I am downloading mp4 from m3u8 using ffmpeg

  


  ffmpeg -i "https://92vod-adaptive.akamaized.net/exp=1671307488~acl=%2F48b4b587-13d3-42f9-bfb9-8a0c92876523%2F%2A~hmac=66ce19e1dc862e0b718a3eb73b42f54bf83855db43831e146252adccf0dc6f1a/48b4b587-13d3-42f9-bfb9-8a0c92876523/sep/video/67e2046f,8f9cecb7,b83b6682,0f26a563,3c957583/audio/0b5e7d8c,5f37ccc0,60c393d7/subtitles/59401986-English%20%28auto-generated%29-en-x-autogen-cc/master.m3u8?subcache=1&external-subs=1&subtoken=38c45483ebf2c8238ec8504c20207a588d72f633f79608c00f5950d0300576f3&query_string_ranges=1" -c copy -map p:0 "Testing of Hypothesis.mp4"



  


  but it is taking too long, like my speed is 10 MBps(80 mbps) size is 300MB, should be done in 30 seconds, but it takes upto 5-10 minutes sometimes, now I know it does some converting thing

  


  My question is is there any way to increase its speed ??
I have CPU- AMD Ryzen 5600H and
GPU - NVIDIA RTX 3050

  


  Some help will be really appreciated

  


  I checked some nvidia encoding and decoding things from there official website and tried many things from there but always stuck at some error