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This CL: 1) Updates RtpSenderVideo to actually populate the is_key_frame field properly. 2) Updates UlpfecGenerator to: * Allow updating the protection parameters before adding any packet. * Apply keyframe protection parameter when at least one buffered media packet to be protected belongs to a keyframe. Updating the parameters in the middle of a frame is allowed, at that point they only determine how many _complete_ frames are needed in order to trigger FEC generation. Only that requirement is met, will the protection parameters (e.g. FEC rate and mask type) actually be applied. This means that delta-frames adjecent to a key-frame (either ahead of or after) may be protected in the same way as the key-frame itself. Bug: webrtc:11340 Change-Id: Ieb84d0ae46de01c17b4ef72251a4cb37814569da Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/195620 Commit-Queue: Erik Språng <sprang@webrtc.org> Reviewed-by: Ying Wang <yinwa@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32787} |
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