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@@ -10,6 +10,7 @@ files "cutting/pasting" with ffmpeg.
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Features
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=========
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+* little system dependencies: python2 and ffmpeg
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* The interface is extremely simple to use
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* You can have nested recording (ie: to record an interview inside of a whole
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show)
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@@ -20,6 +21,18 @@ Features
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does it all. It also means that authorization must be done on another layer
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(for example, your webserver could add a Basic Auth)
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+How does it work
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+================
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+
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+We suppose that you have a continous recording of your radio broadcasting.
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+What techrec does is taking files from this directory and "cutting/pasting"
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+parts of them. This can boil down to something like
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+
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+```sh
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+ffmpeg -i concat:2014-20-01-00-00.mp3|2014-20-01-00-01.mp3 -acodec copy -ss 160 -t 1840 foo.mp3
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+```
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+
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+
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Implementation details
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======================
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@@ -31,4 +44,6 @@ Jobs are not dispatched using stuff like celery, but with a thin wrapper over
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possible.
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The encoding part is delegated to `ffmpeg`, but the code is really modular so
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-changing this is a breeze.
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+changing this is a breeze. To be quicker and avoid the quality issues related
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+to reencoding, the codec "copy" is used: this means that input and output must
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+have the same format.
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