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# Generated Format Testdata
## Background
As one can see from the [[test coverage reports|http://gstreamer.freedesktop.org/data/coverage/lcov/]] we lack of in depth testing on the demuxers and parsers. Testing those is important to be able to deliver standard compliant and robust implementation. Shipping a huge ammount of testfiles with the tests is not feasable.
## Task
The scope of the project would be to use a tool to generate a set of testdata form a formal format description. One such tool that could be used is [[peach fuzzer|http://peachfuzzer.com/]]. The idea here is to generate not all possible mutationl of a file (which is close to impossible), but instead create a subset that is likely to trigger the majority of bugs. To give an example, one would create variants of wav files that contain 0,1,2,17,255 audio-channels - 1 and two would be likely cases, 0 and 255 corner cases and 17 a random value in the middle.
## Resources
* [[GStreamer test coverage|http://gstreamer.freedesktop.org/data/coverage/lcov/]]
* [[peach fuzzer|http://peachfuzzer.com/]]
**Mentor: Stefan Kost - ensonic on IRC**
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[[CategoryGSOC2010|CategoryGSOC2010]] [[CategoryTasks|CategoryTasks]]
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