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• Need help in bash script for ffmpeg encoding [duplicate]

  26 octobre 2022, par naoki

  Tried running the code for encoding the batch videos from a list but from the list it seems to run only the first leave behind the rest.

  


  The list mentioned in rip.txt

  


  Data_science - [1x01] - Introduction.mkv
Data_science - [1x02] - What's Data Science.mkv
Data_science - [1x03] - Packages needed.mkv


  


  The Code :

  


  ***#!/bin/bash

cd /mnt/d1/xsrc/

fn='/mnt/d1/xsrc/rip.txt'
n=1
while read line;
do
ffmpeg -v error -stats -i "$line" -map 0:2 -map_metadata -1 -map_chapters -1 -vn -an -dn -scodec copy -y /mnt/d1/src2/tmp/sub.ass ; ffmpeg -v error -stats -i "$line" -map 0:1 -map_metadata -1 -map_chapters -1 -b:a 96k -ar 48000 -vn -sn -dn -y /mnt/d1/src2/tmp/audio_jpn.m4a ; ffmpeg -v error -stats -i "$line" -strict -1 -map 0:0 -f yuv4mpegpipe -pix_fmt yuv444p12le -s 1280x720 -r 30 - | x265 - --y4m -p slow --bitrate 723 -t animation --output-depth 10 --pass 1 --bframes=8 --psy-rd=1.5 --psy-rdoq=2 --aq-mode=3 --aq-strength=0.8 --deblock=-1,-1 -o /mnt/d1/src2/tmp/video_und.h265 ; ffmpeg -v error -stats -i "$line" -strict -1 -map 0:0 -f yuv4mpegpipe -pix_fmt yuv444p12le -s 1280x720 -r 30 - | x265 - --y4m -p slow --bitrate 723 -t animation --output-depth 10 --pass 2 --bframes=8 --psy-rd=1.5 --psy-rdoq=2 --aq-mode=3 --aq-strength=0.8 --deblock=-1,-1 -o /mnt/d1/src2/tmp/video_und.h265 ; mp4box -add "/mnt/d1/src2/tmp/video_und.h265#video:lang=und" -new "/mnt/d1/src2/tmp/video0000_und.mp4" ; mkvmerge -o /mnt/d1/output/tmp/"$line" --disable-track-statistics-tags --language 0:jpn /mnt/d1/src2/tmp/audio_jpn.m4a --sub-charset 0:UTF-8 --language 0:eng /mnt/d1/src2/tmp/sub.ass /mnt/d1/src2/tmp/video0000_und.mp4 ; rm -rf /mnt/d1/src2/tmp/* ; n=$((n+1))
done < $fn***


  


  Need help in resolving this.

  


• Video with drop frames with ffmpeg

  28 mai 2018, par Gabe Mata

  I am recording videos using ffmpeg in a production environment almost non-stop for 15 hours a day. Sometimes the videos are freezing for a few seconds.

  I believe the hardware is adequate. It is an i7 with 16GB ram and windows 10. The videos are on average about 2:00 minute each.

  This happens a few times a day 10 or so that I am awarded.

  Here is a link to one of the videos that froze :

  https://drive.google.com/open?id=1q6R2l1AkCko-uh2KZ6X8AChdGU5XBOy7

  It freezes at 0:03 and then restarts at 0:16

  Here is the ffmpeg command I am using :

  ffmpeg -i "rtsp ://10.0.131.2/media/video1" -f segment -segment_time 9000 -segment_format mp4 -reset_timestamps 1 -strftime 1 -c copy -map 0 gabe.mp4

  Can I decreases the quality of the videos so videos don’t randomly freeze ?

  Would recording without audio help the videos not randomly freeze ?

  Thanks,

  Gabe

• Unable to create a PPAPI (Pepper) video plugin -NaCl module failed - how to resolve ?

  27 novembre 2013, par ElHaix

  Google's Say Goodbye to Our Old Friend NPAPI blog post indicates that NPAPI plugin support will cease by the end of 2014 (in favor of PPAPI).

  We have considered the option of using the ffmpeg libraries to create our own video plugin to simply decode RTSP encoded H.264 video streams on the client - important because we need as near real-time video display (avoiding transcoding latency). Using the ffmpeg libraries, there is still a 3-5 second delay in decoding the stream, not as fast as running MPlayer with the -benchmark option.

  In trying Google's PNaCl recommendation, we just got the LOADING status and the following error :

  NativeClient : NaCl module load failed : PnaclCoordinator : Compile
  process could not be created : ServiceRuntime : failed to start

  Are there any other alternatives or suggestions to getting this working ?