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Currently developing cobalt 19.lts.1.183273. In this version, I confirmed that a new UpdateServerCertificate has been added. I called the SbDrmServerCertificateUpdatedFunc callback function. 

typedef void (*SbDrmServerCertificateUpdatedFunc)(SbDrmSystem drm_system,
                                                  void* context,
                                                  int ticket,
                                                  SbDrmStatus status,
                                                  const char* error_message);

but In the drm_system.cc file,

  if (iter == ticket_to_server_certificate_updated_map_.end ()) {
     LOG (ERROR) << "Unknown ticket:" << ticket << ".";
     return;
   }

Returned from above.

I think the ticket value does not seem to be a problem. what value should I pass?

thank u.

jihoon jang
  • 27
  • 4

1 Answers1

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Have you tried to pass the |ticket| parameter to SbDrmUpdateServerCertificate() back to the callback?

xiaoming
  • 101
  • 2
  • thank u for reply xiaoming. Should SbDrmServerCertificateUpdatedFunc callback func be called from SbDrmUpdateServerCertificate ()? However, SbDrmUpdateServerCertificate () was not called. – jihoon jang Aug 03 '18 at 01:04
  • Yes, the current YouTube website doesn't call this function. You have to send an implicit server certificate request to the server instead. We have an internal implementation and I will try to include it in our next open source release. – xiaoming Aug 06 '18 at 19:27