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Top Forums Shell Programming and Scripting While loop is running only for the first iteration Post 303013471 by prvnrk on Wednesday 21st of February 2018 11:18:06 PM
Old 02-22-2018
Hi Don,

Thank you for your reply and pointing about hyphen which is the actual culprit but I had to use it to get both commands to work in combination.

Luckily ffmeg offers a qualifier -nostdin which solves this problem. I used below line and everything works perfectly fine Smilie

Code:
ffmpeg -nostdin -i "${FILE_NAME1}.aac" -f caf - | fdkaac -b16 -I -p29 - -o "${FILE_NAME1}.m4a"

Best regards,
 

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pfsoutffmpeg(1) 					      General Commands Manual						   pfsoutffmpeg(1)

NAME
pfsoutffmpeg - Read pfs frames from stdin and forward them to ffmpeg program SYNOPSIS
pfsoutffmpeg [--help] <ffmpeg options> output_file DESCRIPTION
This command is a wrapper for ffmpeg program and can be used to write pfs frames to a compressed video. Check the examples section to for sample usage and see manual of ffmpeg for further information. Note that the usage of '-f' switch (input format specifier) and '-i' switch (input file specifier) of the ffmpeg program is implemented inside the script and is therefore not allowed. EXAMPLES
pfsinrgbe frame%04d.hdr --frames 100:2:200 | pfstmo_reinhard02 -s | pfsgamma -g 1.7 | pfsoutffmpeg -qscale 4 test.avi 1. Read HDR frames in RGBE format with the following names: frame0100.hdr, frame0102.hdr, frame0104.hdr,... frame0200.hdr 2. Apply local tone mapping operator to each frame (Reinhard2002 model, part of the PFSTMO package) 3. Apply gamma correction to each tone mapped frame 4. Compress frames to test.avi animation SEE ALSO
ffmpeg(1) pfsin(1) pfstmo_reinhard02(1) pfsgamma(1) BUGS
Frames smaller than 512x384 can cause broken pipe error, due to bug in ppm pipe reading routine in ffmpeg. Please report bugs and comments to Rafal Mantiuk <mantiuk@mpi-sb.mpg.de> or Grzegorz Krawczyk <krawczyk@mpi-sb.mpg.de>. pfsoutffmpeg(1)
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