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qtdemux: No need for new "application/x-cbcs" caps

Merged qtdemux: No need for new "application/x-cbcs" caps
ybandou/gst-plugins-good:user/ybandou/no_need_application_cbcs_caps into master
Merged Yacine Bandou requested to merge ybandou/gst-plugins-good:user/ybandou/no_need_application_cbcs_caps into master
  1. Jul 06, 2021
    • Yacine Bandou's avatar
      qtdemux: No need for new "application/x-cbcs" caps · ce0be27c
      Yacine Bandou authored and GStreamer Marge Bot's avatar GStreamer Marge Bot committed 
      Instead of using the new "application/x-cbcs" caps, we are just adding
a new structure field "ciphe-mode", to indicate which encryption scheme
is used: "cenc", "cbcs", "cbc1" or "cens".

Similarly for the protection metadata, we add the "cipher-mode" field
to specify the encryption mode with which the buffers are encrypted.

"cenc": AES-CTR (no pattern)
"cbc1": AES-CBC (no pattern)
"cens": AES-CTR (pattern specified)
"cbcs": AES-CBC (pattern specified, using a constant IV)

Currently only "cenc" and "cbcs" are supported.

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