This change resolves an issue that arises when there is a gap in the
sequence numbers of packets associated with a single frame.
Before this change, the H26x packet buffer could potentially assemble a
frame using only a subset of the packets in the buffer if a packet was
missing in the middle and a packet with a marker bit arrived.
To address this, the change introduces a check before assembling a
frame. This ensures that all packets belonging to a single frame are
correctly collected by iterating backward until the first packet in the
frame is identified.
Bug: webrtc:384391181
Change-Id: I4d09a3d6d569624ece204264cb32e5076ed090a2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/374183
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Jianlin Qiu <jianlin.qiu@intel.com>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43793}
eafee5e3d6