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doc/ffmpeg.texi: add a diagram for the loopback decoder example

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Anton Khirnov 2024-10-04 09:44:48 +02:00
parent 794308c61b
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doc/ffmpeg.texi
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@ -526,6 +526,38 @@ reads an input video and
@end itemize
Such a transcoding pipeline can be represented with the following diagram:
@verbatim
┌──────────┬───────────────┐
│ demuxer │ │ ┌─────────┐ ┌─────────┐ ┌────────────────────┐
╞══════════╡ video stream │ │ video │ │ video │ │ null muxer │
│ INPUT │ ├──⮞│ decoder ├──┬────────⮞│ encoder ├─┬─⮞│(discards its input)│
│ │ │ └─────────┘ │ │(libx264)│ │ └────────────────────┘
└──────────┴───────────────┘ │ └─────────┘ │
╭───────⮜──╯ ┌─────────┐ │
│ │loopback │ │
│ ╭─────⮜──────┤ decoder ├────⮜──╯
│ │ └─────────┘
│ │
│ │
│ │ ┌───────────────────┐
│ │ │complex filtergraph│
│ │ ╞═══════════════════╡
│ │ │ ┌─────────────┐ │
╰─╫─⮞├─⮞│ hstack ├─⮞├╮
╰─⮞├─⮞│ │ ││
│ └─────────────┘ ││
└───────────────────┘│
│
┌──────────┬───────────────┐ ┌─────────┐ │
│ muxer │ │ │ video │ │
╞══════════╡ video stream │⮜─┤ encoder ├───────⮜──────────╯
│ OUTPUT │ │ │ (ffv1) │
│ │ │ └─────────┘
└──────────┴───────────────┘
@end verbatim
@c man end DETAILED DESCRIPTION
@anchor{Stream selection}