[FFmpeg-trac] #5995(undetermined:new): Blockiness and ringing in prores4444 encoded video with alpha
FFmpeg
trac at avcodec.org
Tue Dec 6 13:22:56 EET 2016
#5995: Blockiness and ringing in prores4444 encoded video with alpha
-------------------------------------+-------------------------------------
Reporter: stib | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: | Resolution:
prores,alpha | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by stib):
I tried to ftp the movie, but I couldn't connect to the server. connecting
using
{{{ftp ftp://anonymous@upload.ffmpeg.org}}} timed out, and when I
connected with {{{sftp ftp://anonymous@upload.ffmpeg.org}}} it asked for a
password and wouldn't take an empty one or 'anonymous'.
Anyway the problem still occurs when the source is a png image, so I've
attached one.
This is the command I've been using with the png source:
{{{ffmpeg -i source.png -c:v prores_ks -pix_fmt yuva444p10le -quant_mat
'hq' -profile:v 4 output.mov}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/5995#comment:2>
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