Re: [FFmpeg-trac] #6835(avcodec:new): DVBSUB -> DVDSUB "blurring"

[FFmpeg]

#6835: DVBSUB -> DVDSUB "blurring"
---+---
 Reporter:  Sami32 |Owner:
 Type:  enhancement|   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  dvbsub dvdsub  |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---

Comment (by Sami32):

 I don't think that it is related to the blurry issue, but when inspecting,
 comparing the DVBSUB and DVDSUB i saw a frame size difference.
 For example the original DVBSUB, the first frame have a size of 434x46
 But in the DVDSUB, it have a size of 439x41

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Re: [FFmpeg-trac] #6835(avcodec:new): DVBSUB -> DVDSUB "blurring"

[FFmpeg]

#6835: DVBSUB -> DVDSUB "blurring"
---+---
 Reporter:  Sami32 |Owner:
 Type:  enhancement|   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  dvbsub dvdsub  |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---

Comment (by Sami32):

 Could that be related to the color/alpha palette of up to 256 conversion
 used for DVDSUB ?

 Hard and soft DVBSUB have a nice looking.

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Re: [FFmpeg-trac] #6835(avcodec:new): DVBSUB -> DVDSUB "blurring"

[FFmpeg]

#6835: DVBSUB -> DVDSUB "blurring"
---+---
 Reporter:  Sami32 |Owner:
 Type:  enhancement|   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  dvbsub dvdsub  |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---

Comment (by cehoyos):

 I don't know if there is a reason why dvdsub subtitles look very ugly
 while dvbsub subtitles look nice, even after re-encoding (to dvbsub).

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Re: [FFmpeg-trac] #6835(avcodec:new): DVBSUB -> DVDSUB "blurring"

[FFmpeg]

#6835: DVBSUB -> DVDSUB "blurring"
---+---
 Reporter:  Sami32 |Owner:
 Type:  enhancement|   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  dvbsub dvdsub  |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---

Comment (by Sami32):

 Damn !!! i have totally missed that point. Thank you very much for your
 help :)
 I tried -canvas_size 1280x720 and size and position was fine.

 Still this weird blurring though.

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Re: [FFmpeg-trac] #6835(avcodec:new): DVBSUB -> DVDSUB "blurring"

[FFmpeg]

#6835: DVBSUB -> DVDSUB "blurring"
---+---
 Reporter:  Sami32 |Owner:
 Type:  enhancement|   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  dvbsub dvdsub  |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---

Comment (by cehoyos):

 The resolution of the dvb subtitles is (approximately) 720x576, the video
 resolution is 1280x720. If you neither scale the subtitles nor the video,
 the subtitles will not correctly fill the screen.

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Re: [FFmpeg-trac] #6835(avcodec:new): DVBSUB -> DVDSUB "blurring" (was: DVBSUB -> DVDSUB)

[FFmpeg]

#6835: DVBSUB -> DVDSUB "blurring"
---+---
 Reporter:  Sami32 |Owner:
 Type:  enhancement|   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  dvbsub dvdsub  |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---

--
Ticket URL: 
FFmpeg 
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