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Frequently Asked Questions
Question 1 - Allegro streams specificity
Question 2 - Performance testing
Question 3 - Saving money
Question 4 - Video sources
Question 1 - Allegro streams specificity : Why should I buy Allegro streams instead of using downloadable non commercial streams ?
H264 syntax and tools are so complex, that it is vital to carefully validate any H264 capable commercial product. Decoding a lot of H264 streams is not enough to certify an H264 decoder, what you really need is to decode the appropriate streams !
Each Allegro stream focuses on a specific feature to test it intensively. Each feature is first used with an assertion list that holds a set of pathological cases. The functionality under test is then randomly activated and simultaneously tested in combination with all the already verified features.
Question 2 - Performance testing : Why should I use Stress streams ?
These streams test the decoder ability to decode "evil" streams in real-time. Due to its improved coding tools (enhanced motion estimation, CABAC coding, loop filtering...), H.264 real-time decoding is much more difficult to achieve in H.264 than in previous standards. Stress bitstreams are particularly important to ensure that first generation H.264 capable devices will be compatible with today and tomorrow encoders.
Question 3 - Saving money : Why do I save time using Allegro bitstreams?
Thanks to Allegro "Quick restart" and "Quick debug", the streams can be used efficiently and quickly both during the development phase and the validation of the final product. These techniques reduce time-to-market radically.
Question 4 - Video sources : How are Allegro video sources generated ?
Allegro video sources are generated and owned by Allegro. They are highly optimized to simplify potential problem detection.
Question 1 - Allegro streams specificity
Question 2 - Performance testing
Question 3 - Saving money
Question 4 - Video sources
Question 1 - Allegro streams specificity : Why should I buy Allegro streams instead of using downloadable non commercial streams ?
H264 syntax and tools are so complex, that it is vital to carefully validate any H264 capable commercial product. Decoding a lot of H264 streams is not enough to certify an H264 decoder, what you really need is to decode the appropriate streams !
Each Allegro stream focuses on a specific feature to test it intensively. Each feature is first used with an assertion list that holds a set of pathological cases. The functionality under test is then randomly activated and simultaneously tested in combination with all the already verified features.
Question 2 - Performance testing : Why should I use Stress streams ?
These streams test the decoder ability to decode "evil" streams in real-time. Due to its improved coding tools (enhanced motion estimation, CABAC coding, loop filtering...), H.264 real-time decoding is much more difficult to achieve in H.264 than in previous standards. Stress bitstreams are particularly important to ensure that first generation H.264 capable devices will be compatible with today and tomorrow encoders.
Question 3 - Saving money : Why do I save time using Allegro bitstreams?
Thanks to Allegro "Quick restart" and "Quick debug", the streams can be used efficiently and quickly both during the development phase and the validation of the final product. These techniques reduce time-to-market radically.
Question 4 - Video sources : How are Allegro video sources generated ?
Allegro video sources are generated and owned by Allegro. They are highly optimized to simplify potential problem detection.
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