mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2026-03-27 07:58:16 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

alsa: improve target bandwidth calculation

Browse source 
Also use the average error to calculate the bandwidth. If we are not
around 0, we should increase the bandwidth.
This commit is contained in:
Wim Taymans 2024-12-03 12:10:04 +01:00
parent 922efaf6ed
commit 22f0b858b1
1 changed files with 7 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

10
spa/plugins/alsa/alsa-pcm.c
View file

@ -2831,16 +2831,20 @@ static int update_time(struct state *state, uint64_t current_time, snd_pcm_sfram
state->next_time += (uint64_t)(diff / corr * 1e9 / state->rate); state->next_time += (uint64_t)(diff / corr * 1e9 / state->rate);
if (SPA_UNLIKELY((state->next_time - state->base_time) > BW_PERIOD)) { if (SPA_UNLIKELY((state->next_time - state->base_time) > BW_PERIOD)) {
double bw;
state->base_time = state->next_time; state->base_time = state->next_time;
spa_log_debug(state->log, "%s: follower:%d match:%d rate:%f " bw = (fabs(state->err_avg) + sqrt(fabs(state->err_var)))/1000.0;
spa_log_info(state->log, "%s: follower:%d match:%d rate:%f "
"bw:%f thr:%u del:%ld target:%ld err:%f max:%f var:%f:%f:%f", "bw:%f thr:%u del:%ld target:%ld err:%f max:%f var:%f:%f:%f",
state->name, follower, state->matching, state->name, follower, state->matching,
corr, state->dll.bw, state->threshold, delay, target, corr, state->dll.bw, state->threshold, delay, target,
err, state->max_error, state->err_avg, state->err_var, state->err_wdw); err, state->max_error, state->err_avg, state->err_var, bw);
spa_dll_set_bw(&state->dll, spa_dll_set_bw(&state->dll,
SPA_CLAMPD(sqrt(state->err_var)/1000.0, 0.001, SPA_DLL_BW_MAX), SPA_CLAMPD(bw, 0.001, SPA_DLL_BW_MAX),
state->threshold, state->rate); state->threshold, state->rate);
} }