Commits on Mar 20, 2024

1. MT#55283 packet_encoded_tx: add a ts delay when transmitting DTMF eve… …

   …nt packets
   
   when DTMF is being transmitted using codec_output_rtp, the scheduled
   time to send the packet is calculated using the timestamp difference
   from the last transmitted applied on top of the realtime time the
   last packet was sent. However, the timestamp is only updated on the
   first event packet so a delay needs to be passed in to codec_output_rtp
   to ensure the subsequent packets are scheduled based on the event
   duration of the event packets
   
   Change-Id: I5a2f6cf67b5f570f6099d201592d9a6fc01d60a5

   

   tombriden committed Mar 20, 2024
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2. MT#55283 dtmf_event_payload: canonicalise DTMF end event ts if start … …

   …packet send was delayed
   
   in some scenarios the start event ts can be before the *pts value, which
   will result in a shortened DTMF event being transmitted than expected during
   injection as the end event ts is calculated based on that initial dtmf start
   value.
   This change updates the end event ts by the amount the start ts was
   behind, so that the resulting event has the right duration
   
   Change-Id: Ia637d1e1c5d92de8b35317ec552c22eae23c0645

   

   tombriden committed Mar 20, 2024
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3. MT#55283 fix DTMF end event sequencing …

   Change-Id: Ia16ffefc0791d01575248ac5d8025eb30ccaec67

   

   rfuchs authored and tombriden committed Mar 20, 2024
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4. MT#55283 dtmf_inject: fix generating one too many event packets …

   the num_samples was added to the start_pts, which is the first event
   packet timestamp, which has already increased its ts by its event
   duration. so, the total duration of events ends up being one packet
   more than intended.
   
   Change-Id: I423bb222a81c5bd78e570ff2026c72dd4dd1b100

   

   tombriden committed Mar 20, 2024
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5. MT#55283 codec_last_dtmf_event: return ts of dtmf_state if handler qu… …

   …eue is empty
   
   this function is used to determine if a pause is needed on a new
   injected DTMF's start ts to ensure a gap between the events. However,
   if an inject request comes in after the end of the previous event
   but before it would have been offset due to pause, no pause is added
   
   This change returns the ts value from dtmf_state if the queue is
   empty as that will always be the ts of the last DTMF transmitted
   
   Change-Id: I4f3cf5115d1a8e26c0ca1bc9570c46e29391e0d0

   

   tombriden committed Mar 20, 2024
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6. MT#55283 dtmf_inject: adjust start_pts if last_event + pause is later… …

   … than it
   
   now that the returned last_event_ts is always that of the previous
   DTMF, we can ensure that the next one isn't transmitted until that
   time plus the required pause.
   Like the num_samples calculation, the actual time needs to be
   increased by 1 packets worth of samples so tha pause lasts the
   full duration required
   
   Change-Id: I6da1dd7cbcf49f7f0431a5123df2cdc382fe3dba

   

   tombriden committed Mar 20, 2024
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7. MT#55283 dtmf: only update recv list if not injected and send list if… …

   … injected, delayed or not blocked
   
   having injected events on the recv list can cause out of order TS
   values which results in is_in_dtmf incorrectly returning NULL and
   letting the transcoded PCM frames through.
   It also doesn't make sense to add DTMF to the send list unless they're
   actually being sent, so injected delayed or unblocked
   
   Change-Id: I07e2a35e27142715a5257f199326b7a3d133e2a8

   

   tombriden committed Mar 20, 2024
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