Opened 8 years ago

Closed 7 years ago

#1244 closed defect (fixed)

How to set bandwidth

Reported by: bennylp Owned by: nanang
Priority: minor Milestone: release-2.0-rc
Component: pjmedia Version: 2.0-dev-branch
Keywords: sipit28 Cc:
Backport to 1.x milestone: Backported:

Description (last modified by bennylp)

API to set bandwidth.

Also related to #1239, bandwidth attribute is needed by some servers in order to let video calls through.

Ref: Avaya

Change History (6)

comment:1 Changed 8 years ago by bennylp

  • Priority changed from normal to minor

comment:2 Changed 8 years ago by bennylp

  • Milestone changed from release-2.0-alpha to release-2.0-beta

comment:3 Changed 7 years ago by bennylp

  • Description modified (diff)
  • Summary changed from Bandwidth attribute is needed for video calls to How to set bandwidth

comment:4 Changed 7 years ago by nanang

(In [3945]) Re #1244: Added bandwidth info in SDP ("b=" lines) based on codec bitrate settings. Two SDP bandwidth types/modifiers are used: AS in session level & TIAS in media level.

comment:5 Changed 7 years ago by nanang

(In [3955]) Re #1244: Added bitrate adjustment for video encoder based on remote SDP "b=TIAS" line in media level.

comment:6 Changed 7 years ago by bennylp

  • Resolution set to fixed
  • Status changed from new to closed

See https://trac.pjsip.org/repos/wiki/Video_Users_Guide#Bitrate on how to set bandwidth on the codec. It also possible to convey codec specific bitrate in the SDP, for example the MaxBR SDP fmtp parameter for H.263. Please see the link for more information.

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