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Send a valid PTS in the RTP video header (#529)

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This commit is contained in:
Cameron Gutman
2022-12-16 14:56:44 -06:00
committed by GitHub
parent 66f46ab341
commit 633f0035c2
1 changed files with 6 additions and 2 deletions
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8
src/stream.cpp
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@@ -905,6 +905,7 @@ void recvThread(broadcast_ctx_t &ctx) {
void videoBroadcastThread(udp::socket &sock) {
auto shutdown_event = mail::man->event<bool>(mail::broadcast_shutdown);
auto packets = mail::man->queue<video::packet_t>(mail::video_packets);
auto timebase = boost::posix_time::microsec_clock::universal_time();
while(auto packet = packets->pop()) {
if(shutdown_event->peek()) {
@@ -1017,6 +1018,10 @@ void videoBroadcastThread(udp::socket &sock) {
for(auto x = 0; x < shards.size(); ++x) {
auto *inspect = (video_packet_raw_t *)shards.data(x);
// RTP video timestamps use a 90 KHz clock
auto now = boost::posix_time::microsec_clock::universal_time();
auto timestamp = (now - timebase).total_microseconds() / (1000 / 90);
inspect->packet.fecInfo =
(x << 12 |
shards.data_shards << 22 |
@@ -1024,12 +1029,11 @@ void videoBroadcastThread(udp::socket &sock) {
inspect->rtp.header = 0x80 | FLAG_EXTENSION;
inspect->rtp.sequenceNumber = util::endian::big<uint16_t>(lowseq + x);
inspect->rtp.timestamp = util::endian::big<uint32_t>(timestamp);
inspect->packet.multiFecBlocks = (blockIndex << 4) | lastBlockIndex;
inspect->packet.frameIndex = av_packet->pts;
}
for(auto x = 0; x < shards.size(); ++x) {
sock.send_to(asio::buffer(shards[x]), session->video.peer);
}