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continue the AirPlay saga - release

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philippe44
2020-03-29 22:36:23 -07:00
parent d2a9454200
commit 6b5c9188c6
1 changed files with 4 additions and 3 deletions
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7
components/raop/rtp.c
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@@ -654,7 +654,7 @@ static void *rtp_thread_func(void *arg) {
u64_t remote = (((u64_t) ntohl(*(u32_t*)(pktp+8))) << 32) + ntohl(*(u32_t*)(pktp+12)); u64_t remote = (((u64_t) ntohl(*(u32_t*)(pktp+8))) << 32) + ntohl(*(u32_t*)(pktp+12));
u32_t rtp_now = ntohl(*(u32_t*)(pktp+16)); u32_t rtp_now = ntohl(*(u32_t*)(pktp+16));
u16_t flags = ntohs(*(u16_t*)(pktp+2)); u16_t flags = ntohs(*(u16_t*)(pktp+2));
u32_t remote_gap = NTP2MS(remote - ctx->timing.remote); u32_t remote_gap = NTP2MS(remote - ctx->timing.remote);
// try to get NTP every 3 sec or every time if we are not synced // try to get NTP every 3 sec or every time if we are not synced
if (!count-- || !(ctx->synchro.status & NTP_SYNC)) { if (!count-- || !(ctx->synchro.status & NTP_SYNC)) {
@@ -700,9 +700,10 @@ static void *rtp_thread_func(void *arg) {
case 0x53: { case 0x53: {
u64_t expected; u64_t expected;
u32_t reference = ntohl(*(u32_t*)(pktp+12)); // only low 32 bits in our case u32_t reference = ntohl(*(u32_t*)(pktp+12)); // only low 32 bits in our case
u64_t remote =(((u64_t) ntohl(*(u32_t*)(pktp+16))) << 32) + ntohl(*(u32_t*)(pktp+20)); u64_t remote =(((u64_t) ntohl(*(u32_t*)(pktp+16))) << 32) + ntohl(*(u32_t*)(pktp+20));
u32_t roundtrip = gettime_ms() - reference; u32_t roundtrip = gettime_ms() - reference;
// better discard sync packets when roundtrip is suspicious
if (roundtrip > 100) { if (roundtrip > 100) {
// ask for another one only if we are not synced already // ask for another one only if we are not synced already
if (!(ctx->synchro.status & NTP_SYNC) rtp_request_timing(ctx); if (!(ctx->synchro.status & NTP_SYNC) rtp_request_timing(ctx);