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Reduce the rate at which resends are requests to make them less, uh, insistent

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Mike Brady
2018-06-29 22:59:19 +01:00
parent 820486ad95
commit 7aee31fb7e
1 changed files with 5 additions and 4 deletions
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player.c
+5 -4
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@@ -607,10 +607,11 @@ void player_put_packet(seq_t seqno, uint32_t actual_timestamp, int64_t timestamp
int j;
for (j = 1; j <= number_of_resend_attempts; j++) {
// check j times, after a short period of has elapsed, assuming 352 frames per packet
int back_step = resend_interval * j;
// the higher the step_exponent, the less it will try. 1 means it will try very hard. 2.0 seems good.
float step_exponent = 2.0;
int back_step = (int)(resend_interval * pow(j,step_exponent));
int k;
for (k = -2; k <= 2; k++) {
for (k = -1; k <= 1; k++) {
if ((back_step + k) <
seq_diff(conn->ab_read, conn->ab_write,
conn->ab_read)) { // if it's within the range of frames in use...
@@ -622,7 +623,7 @@ void player_put_packet(seq_t seqno, uint32_t actual_timestamp, int64_t timestamp
j)) { // prevent multiple requests from the same level of lookback
check_buf->resend_level = j;
if (config.disable_resend_requests == 0) {
if ((back_step + k + resend_interval) >=
if (((int)(resend_interval * pow(j+1,step_exponent)) + k) >=
seq_diff(conn->ab_read, conn->ab_write, conn->ab_read))
debug(3, "Last-ditch (#%d) resend request for packet %u in range %u to %u. "
"Looking back %d packets.",