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module-rtp: calculate payload_size based on MTU

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The actual payload size depends on the MTU but should not include the
IP/UDP and RTP headers.

Fixes #4396
This commit is contained in:
Wim Taymans 2024-11-11 11:49:20 +01:00
parent 73b5a10021
commit a53bc035c0
4 changed files with 15 additions and 4 deletions
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5
src/modules/module-rtp/midi.c
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@ -363,7 +363,7 @@ static void rtp_midi_flush_packets(struct impl *impl,
struct rtp_header header;
struct rtp_midi_header midi_header;
struct iovec iov[3];
uint32_t len, prev_offset, base;
uint32_t len, prev_offset, base, max_size;
spa_zero(header);
header.v = 2;
@ -380,6 +380,7 @@ static void rtp_midi_flush_packets(struct impl *impl,
iov[2].iov_len = 0;
prev_offset = len = base = 0;
max_size = impl->payload_size - sizeof(midi_header);
SPA_POD_SEQUENCE_FOREACH(sequence, c) {
uint32_t delta, offset;
@ -396,7 +397,7 @@ static void rtp_midi_flush_packets(struct impl *impl,
offset = c->offset * impl->rate / rate;
if (len > 0 && (len + size > impl->mtu ||
if (len > 0 && (len + size > max_size ||
offset - base > impl->psamples)) {
/* flush packet when we have one and when it's either
* too large or has too much data. */