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design: subtitle-overlays: drop unneeded scaping & add missing markup

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Additionally, drop manual padding on final launch example.
This commit is contained in:
Reynaldo H. Verdejo Pinochet 2017-01-23 14:40:08 -08:00
parent 71cb8da117
commit 730ed0da1e
1 changed files with 9 additions and 9 deletions
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18
markdown/design/subtitle-overlays.md
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@ -154,14 +154,14 @@ Multiple possible solutions come to mind:
One would have to do implement a special kind of new query (e.g.
FEATURE query) that is not passed on automatically by
gst\_pad\_query\_default() in order to make sure that all elements
`gst_pad_query_default()` in order to make sure that all elements
downstream will handle the attached overlay data. (This is only a
problem if we want to also attach overlay data to raw video pixel
buffers; for new non-raw types we can just make it mandatory and
assume support and be done with it; for existing non-raw types
nothing changes anyway if subtitles don't work) (we need to maintain
backwards compatibility for existing raw video pipelines like e.g.:
..decoder \! suboverlay \! encoder..)
`..decoder ! suboverlay ! encoder..`)
Even though slightly more work, attaching the overlay information to
buffers seems more intuitive than sending it interleaved as events.
@ -523,11 +523,11 @@ TEST: should these look (roughly) alike (note text distortion) - needs
fixing in textoverlay
```
gst-launch-1.0 \
videotestsrc ! video/x-raw,width=640,height=480,pixel-aspect-ratio=1/1 \
! textoverlay text=Hello font-desc=72 ! xvimagesink \
videotestsrc ! video/x-raw,width=320,height=480,pixel-aspect-ratio=2/1 \
! textoverlay text=Hello font-desc=72 ! xvimagesink \
videotestsrc ! video/x-raw,width=640,height=240,pixel-aspect-ratio=1/2 \
! textoverlay text=Hello font-desc=72 ! xvimagesink
gst-launch-1.0 \
videotestsrc ! video/x-raw,width=640,height=480,pixel-aspect-ratio=1/1 \
! textoverlay text=Hello font-desc=72 ! xvimagesink \
videotestsrc ! video/x-raw,width=320,height=480,pixel-aspect-ratio=2/1 \
! textoverlay text=Hello font-desc=72 ! xvimagesink \
videotestsrc ! video/x-raw,width=640,height=240,pixel-aspect-ratio=1/2 \
! textoverlay text=Hello font-desc=72 ! xvimagesink
```