[FFmpeg-devel] Enquiry re resolving errors reported by stream analysers after transcoding with FFmpeg

[Stephenson, Angelica]

Hello,

I’m emailing to seek your advice. For the past few months, a team here at Sky UK has performed testing to determine whether FFmpeg would be a suitable transcode resource for a variety of use cases. Some tests failed due to stream analysers reporting errors, summary listed below. What would be required to make a sensible and indicative estimate on cost and level of effort required for you or someone in your team to resolve the errors being reported?

Errors reported by analysers

  *   Unable to insert PCR on PES (TR-8 requirement from Sky's VRP video spec for PDL)
  *   MPEG and AAC audio buffer overflows (Manzanita)
  *   PES header data_alignment_indicator flag not set for video and audio (Manzanita)
  *   Failed HRD conformance check (Tektronix Cerify)
  *   TB overflows (A/V Codec Analyser)
  *   PTS (Presentation Timestamp) interval is not constant in audio stream (A/V Codec Analyser)
  *   PTS must occur after end of Access Unit (A/V Codec Analyser)
  *   PCR discontinuities (A/V Codec Analyser)

Thanks in advance,
Angelica.

Angelica Stephenson
Senior Technical Lead

Sky UK
Tel:   +44 (0) 7596 352 078
Email:angelica.stephenson at sky.uk<mailto:angelica.stephenson at sky.uk>
Website:www.sky.com<blocked::blocked::http://www.sky.com/>

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