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Cisco Bug: CSCuo56985 - Macroblocking on Philips set-top box when streamed from MFP board

Last Modified

Jun 16, 2020

Products (1)

  • Cisco Digital Content Manager (DCM) Software

Known Affected Releases

all versions

Description (partial)

When an MPEG-2 stream is processed by an MFP board the ? MPEG-2 standard compliant - output stream is causing random macro blocking on a specific Philips set-top box type (other STB types are not affected).

When processing an MPEG-2 stream, the quantization matrices are updated on-the-fly in the headers of the bitstream. The granularity of these updates is picture level. Some set-top boxes do not handle these updates in a correct manner.
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