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obs-webrtc: Increase RtcpNackResponder size

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Before we used the default value set by libdatachannel. At
higher bitrates the cache would be undersized. Because of the undersized
cache we wouldn't have enough NACK history to fix the stream.
This commit is contained in:
Sean DuBois
2024-06-04 14:37:44 -04:00
committed by Ryan Foster
parent 52ae5fc4bd
commit b9de99a103
1 changed files with 5 additions and 1 deletions
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plugins/obs-webrtc/whip-output.cpp
+5 -1
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@@ -21,6 +21,9 @@ const uint8_t audio_payload_type = 111;
const char *video_mid = "1";
const uint8_t video_payload_type = 96;
// ~3 seconds of 8.5 Megabit video
const int video_nack_buffer_size = 4000;
WHIPOutput::WHIPOutput(obs_data_t *, obs_output_t *output)
: output(output),
endpoint_url(),
@@ -181,7 +184,8 @@ void WHIPOutput::ConfigureVideoTrack(std::string media_stream_id,
video_sr_reporter = std::make_shared<rtc::RtcpSrReporter>(rtp_config);
packetizer->addToChain(video_sr_reporter);
packetizer->addToChain(std::make_shared<rtc::RtcpNackResponder>());
packetizer->addToChain(std::make_shared<rtc::RtcpNackResponder>(
video_nack_buffer_size));
video_track = peer_connection->addTrack(video_description);
video_track->setMediaHandler(packetizer);