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design: trickmodes: switch to conventional figure format

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Follow figure guidelines from conventions.md.

Additionally: add some missing markup.
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Reynaldo H. Verdejo Pinochet 2017-03-20 13:29:55 -07:00
parent fee2433e04
commit c2eb75ee4d
1 changed files with 10 additions and 10 deletions
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markdown/design/trickmodes.md
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@ -25,13 +25,13 @@ pipeline.
Consider a typical playback pipeline: Consider a typical playback pipeline:
``` ```
.---------. .------. +---------+ +------+
.-------. | decoder |->| sink | +-------+ | decoder |->| sink |
.--------. | |-->'---------' '------' +--------+ | |-->+---------+ +------+
| source |->| demux | | source |->| demux |
'--------' | |-->.---------. .------. +--------+ | |-->+---------+ +------+
'-------' | decoder |->| sink | +-------+ | decoder |->| sink |
'---------' '------' +---------+ +------+
``` ```
The pipeline is initially configured to play back at speed 1.0 starting The pipeline is initially configured to play back at speed 1.0 starting
@ -157,7 +157,7 @@ the media contains data with non-standard playback speed or direction.
## client side forward trickmodes ## client side forward trickmodes
The seek happens as stated above. a SEGMENT event is sent downstream The seek happens as stated above. a `SEGMENT` event is sent downstream
with a rate different from 1.0. Plugins receiving the `SEGMENT` can decide with a rate different from 1.0. Plugins receiving the `SEGMENT` can decide
to perform the rate conversion of the media data (retimestamp video to perform the rate conversion of the media data (retimestamp video
frames, resample audio, …). frames, resample audio, …).
@ -206,11 +206,11 @@ For plugins the following rules apply:
previous buffer. previous buffer.
- A video decoder decodes and accumulates all decoded frames. If a - A video decoder decodes and accumulates all decoded frames. If a
buffer with a DISCONT, SEGMENT or EOS is received, all accumulated buffer with a `DISCONT`, `SEGMENT` or `EOS` is received, all accumulated
frames are sent downsteam in reverse. frames are sent downsteam in reverse.
- An audio decoder decodes and accumulates all decoded audio. If a - An audio decoder decodes and accumulates all decoded audio. If a
buffer with a DISCONT, SEGMENT or EOS is received, all accumulated buffer with a `DISCONT`, `SEGMENT` or `EOS` is received, all accumulated
audio is sent downstream in reverse order. Some audio codecs need audio is sent downstream in reverse order. Some audio codecs need
the previous data buffer to decode the current one, in that case, the previous data buffer to decode the current one, in that case,
the previous DISCONT buffer needs to be combined with the last the previous DISCONT buffer needs to be combined with the last
@ -225,7 +225,7 @@ For plugins the following rules apply:
- for transcoding, audio and video resamplers can be used to reverse, - for transcoding, audio and video resamplers can be used to reverse,
resample and retimestamp the buffers. Any rate adjustments performed resample and retimestamp the buffers. Any rate adjustments performed
on the media must be added to the `applied_rate` and subtracted from on the media must be added to the `applied_rate` and subtracted from
the rate members in the SEGMENT the rate members in the `SEGMENT`
event. event.
In `SKIP` mode, the same algorithm as for forward `SKIP` mode can be used. In `SKIP` mode, the same algorithm as for forward `SKIP` mode can be used.