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alsa: rework timing

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Use a DLL to track the hardware pointer and use this to set the
timer.
Handle XRUN and recover.
This commit is contained in:
Wim Taymans 2018-11-16 17:00:40 +01:00
parent 5444b850d2
commit 0343297257
4 changed files with 270 additions and 232 deletions
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8
spa/plugins/alsa/alsa-source.c
View file

@ -231,11 +231,11 @@ static int impl_node_send_command(struct spa_node *node, const struct spa_comman
if (this->n_buffers == 0)
return -EIO;
if ((res = spa_alsa_start(this, false)) < 0)
if ((res = spa_alsa_start(this)) < 0)
return res;
break;
case SPA_NODE_COMMAND_Pause:
if ((res = spa_alsa_pause(this, false)) < 0)
if ((res = spa_alsa_pause(this)) < 0)
return res;
break;
default:
@ -477,7 +477,7 @@ static int port_set_format(struct spa_node *node,
int err;
if (format == NULL) {
spa_alsa_pause(this, false);
spa_alsa_pause(this);
clear_buffers(this);
spa_alsa_close(this);
this->have_format = false;
@ -544,7 +544,7 @@ impl_node_port_use_buffers(struct spa_node *node,
return -EIO;
if (this->n_buffers > 0) {
spa_alsa_pause(this, false);
spa_alsa_pause(this);
if ((res = clear_buffers(this)) < 0)
return res;
}