mirrors/alsa-lib
1
0
Fork 0
mirror of https://github.com/alsa-project/alsa-lib.git synced 2025-11-04 13:30:08 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Moved ring buffer pointers and added a mechanism to transfer them via shm

Browse source
This commit is contained in:
Jaroslav Kysela 2002-04-23 15:51:29 +00:00
parent f063381430
commit c941c548f8
26 changed files with 469 additions and 171 deletions
Download patch file Download diff file Expand all files Collapse all files

13
src/pcm/pcm_plug.c
View file

@ -832,8 +832,10 @@ static int snd_pcm_plug_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
snd_pcm_plug_clear(pcm);
return err;
}
pcm->hw_ptr = slave->hw_ptr;
pcm->appl_ptr = slave->appl_ptr;
snd_pcm_unlink_hw_ptr(pcm, plug->req_slave);
snd_pcm_unlink_appl_ptr(pcm, plug->req_slave);
snd_pcm_link_hw_ptr(pcm, slave);
snd_pcm_link_appl_ptr(pcm, slave);
return 0;
}
@ -915,6 +917,7 @@ int snd_pcm_plug_open(snd_pcm_t **pcmp,
snd_pcm_plug_t *plug;
int err;
assert(pcmp && slave);
plug = calloc(1, sizeof(snd_pcm_plug_t));
if (!plug)
return -ENOMEM;
@ -939,8 +942,8 @@ int snd_pcm_plug_open(snd_pcm_t **pcmp,
pcm->fast_op_arg = slave->fast_op_arg;
pcm->private_data = plug;
pcm->poll_fd = slave->poll_fd;
pcm->hw_ptr = slave->hw_ptr;
pcm->appl_ptr = slave->appl_ptr;
snd_pcm_link_hw_ptr(pcm, slave);
snd_pcm_link_appl_ptr(pcm, slave);
*pcmp = pcm;
return 0;
@ -1084,7 +1087,7 @@ int _snd_pcm_plug_open(snd_pcm_t **pcmp, const char *name,
return err;
}
}
err = snd_pcm_open_slave(&spcm, root, sconf, stream, mode);
snd_config_delete(sconf);
if (err < 0)