[FFmpeg-trac] #4344(undetermined:new): XSUBs are too low in PAL video, on PS3
FFmpeg
trac at avcodec.org
Sat Nov 5 07:55:42 EET 2016
#4344: XSUBs are too low in PAL video, on PS3
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Reporter: edumj | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: xsub | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by edumj):
Ok, with lower video resolutions (like 320x480 and 640x480) they are also
cutted, and look exaclty the same size as with 720x576.
Wiht higher resolutions (like 1440x1080 and 1920x1080) they are full but
smaller, because they are scaled down and top-center aligned (if I made
them with DivMux they also scaled down, but appear in an upper position
because of their 480 height)
I can make some captures if you want.
Txt2VobSub makes 720x576 and 720x480 IDX/SUB (acoording to "size" in .idx
file), but I found out that they really are 720x576 always and they just
get cutted when .idx says "size: 720x480" (because the lower parts of the
bitmaps are empty and it's ok to cut at 480). I mean, they must know that
the max height for XSUB is 480 and they don't put subtitles lower tan
that.
I'll try what happens with DivXMux and full height 720x576 VobSub
extracted with Mencoder, because when I extract them with PGCDemux and
convert to idx/sub with sup2vobsub, upper subs go down and I don't know if
DivXMux scales down to 640x480 or just aling bottom (but then the upper
subs should be cutted!?)
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Ticket URL: <https://trac.ffmpeg.org/ticket/4344#comment:18>
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