[FFmpeg-trac] #3701(avcodec:open): adpcm-ima_qt encoder's trellis support is broken
FFmpeg
trac at avcodec.org
Thu Jun 5 09:58:06 CEST 2014
#3701: adpcm-ima_qt encoder's trellis support is broken
-------------------------------------+-------------------------------------
Reporter: Timothy_Gu | Owner:
Type: defect | Status: open
Priority: important | Component: avcodec
Version: git-master | Resolution:
Keywords: adpcm | Blocked By:
regression | Reproduced by developer: 1
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Changes (by cehoyos):
* priority: normal => important
Comment:
I originally thought that mentioned commit improved quality but I actually
get the following with older FFmpeg and trellis so imo this is definitely
a regression:
{{{
stddev: 732.40 PSNR: 39.03 MAXDIFF:29633 bytes: 1058400/ 1058560
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3701#comment:2>
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