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airplay improvements

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This commit is contained in:
philippe44
2023-11-19 22:57:21 -08:00
parent 1d54331224
commit 807a0e547a
3 changed files with 30 additions and 12 deletions
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30
components/raop/rtp.c
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@@ -461,7 +461,7 @@ static void buffer_put_packet(rtp_t *ctx, seq_t seqno, unsigned rtptime, bool fi
return;
}
}
if (seqno == (u16_t) (ctx->ab_write+1)) {
// expected packet
abuf = ctx->audio_buffer + BUFIDX(seqno);
@@ -572,17 +572,25 @@ static void buffer_push_packet(rtp_t *ctx) {
}
LOG_SDEBUG("playtime %u %d [W:%hu R:%hu] %d", playtime, playtime - now, ctx->ab_write, ctx->ab_read, curframe->ready);
// try to request resend missing packet in order, explore up to 32 frames
for (int step = max((ctx->ab_write - ctx->ab_read + 1) / 32, 1),
i = 0, first = 0;
seq_order(ctx->ab_read + i, ctx->ab_write); i += step) {
abuf_t* frame = ctx->audio_buffer + BUFIDX(ctx->ab_read + i);
// each missing packet will be requested up to (latency_frames / 16) times
for (int i = 0; seq_order(ctx->ab_read + i, ctx->ab_write); i += 16) {
abuf_t *frame = ctx->audio_buffer + BUFIDX(ctx->ab_read + i);
if (!frame->ready && now - frame->last_resend > RESEND_TO) {
// stop if one fails
if (!rtp_request_resend(ctx, ctx->ab_read + i, ctx->ab_read + i)) break;
frame->last_resend = now;
}
}
// stop when we reach a ready frame or a recent pending resend
if (first && (frame->ready || now - frame->last_resend <= RESEND_TO)) {
if (!rtp_request_resend(ctx, first, ctx->ab_read + i - 1)) break;
first = 0;
i += step - 1;
} else if (!frame->ready && now - frame->last_resend > RESEND_TO) {
if (!first) first = ctx->ab_read + i;
frame->last_resend = now;
}
}
}
/*---------------------------------------------------------------------------*/