[FFmpeg-user] Reports not getting x265 info

Jim Worrall coniophora at gmail.com
Sat Jan 9 15:28:32 CET 2016


> On 2016 Jan 9, at 7:21 AM, Nicholas Robbins <nickrobbins-at-yahoo.com at ffmpeg.org> wrote:
> 
>> On Saturday, January 9, 2016 9:11 AM, Jim Worrall <coniophora at gmail.com> wrote:
> 
>>> I’m doing long transcodes on my local server to avoid tying up my laptop.  
>> Unfortunately much of the console output gets lost in the process.  So I’m using 
>> the report-writing feature of ffmpeg by creating a FFREPORT environment 
>> variable.
>> 
>> This is great, but with libx265, none of the x265 info gets into the report - it 
>> is missing.  With libx264, the libx264 output DOES get into the report - it 
>> works fine.
> 
> 
> ffmpeg sends some information to stderr not stdout. It looks the same on the console, but doesn't behave the same shell-wise. If you want to capture all of the console output you do do this:
> 
> $ ffmpeg [options and arguments] 2>&1 >> logfile.txt
> 
> 
> 2>&1 combines stderr and stdout into stderr, which is then appended to logfile.txt
> 
> 
> if you wanted to have the output also show up in the terminal, you could use 'tee':
> 
> 
> $ ffmpeg [options and arguments] 2>&1 | tee -a logfile.txt
> 
> 
> this will display the same, but also save a copy in logfile.txt
> 
Thanks.  That may work (I’ll have to try on a long encode on the server and see if it works when the ssh session stops), but it still doesn’t seem consistent that x264 gets in the report and x265 doesn’t.  I guess one is stdout and one stderr, but shouldn’t they be handled the same?  Ideally like x264.


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