System Streams  Allegro audio/video system encapsulated streams can be used to certify ICs or products including set-top boxes, DVD and Blu-Ray players, mobile phones, etc.

To help you test your system, these streams provide two levels of verification: quick visual check or in-depth and accurate analysis with measuring tools.

They are the perfect tool to test:
Audio/video synchronization
Dynamic picture resolution change
Picture aspect ratio dynamic change
Dynamic Active Format Description (AFD) change
Dynamic audio/video codec change
Subtitle/video synchronization (Teletext, DVB-Subtitle, ARIB Closed Caption, etc.)

Video	Audio	System format
H.264 CIF Baseline Profile H.264 SD Main Profile H.264 HD High Profile MPEG-2 CIF MP@ML MPEG-2 SD MP@ML MPEG-2 HD MP@HL MPEG-1 Layer I and II	AC-3 e-AC-3 (DD+) AAC-LC HE-AAC v1 (aacPlus v1) LATM / LOAS HE-AAC v2 (aacPlus v2) LATM / LOAS	MPEG-2 Transport (ISO/IEC 13818-1) DVB-T standard ISDB-T and ISDB-Tb standard DTMB