mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2025-11-02 09:01:50 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

pulse-server: track quantum and update tlength

Browse source 
Keep track of the current quantum and recalculate the tlength in the
same way that pulseaudio does.

Send a bufferattr changed message to a client when we change the
parameters.

This fixes the case where the quantum is increased and there needs to be
more buffering to keep the stream going.
This commit is contained in:
Wim Taymans 2021-12-14 15:48:54 +01:00
parent 6b81be5ac3
commit 1f4254b344
3 changed files with 56 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

39
src/modules/module-protocol-pulse/stream.c
View file

@ -256,3 +256,42 @@ int stream_send_request(struct stream *stream)
return client_queue_message(client, msg);
}
int stream_update_minreq(struct stream *stream, uint32_t minreq)
{
struct client *client = stream->client;
struct impl *impl = client->impl;
uint32_t old_tlength = stream->attr.tlength;
uint32_t new_tlength = minreq + 2 * stream->attr.minreq;
uint64_t lat_usec;
if (new_tlength == old_tlength)
return 0;
if (old_tlength > new_tlength)
stream->missing -= old_tlength - new_tlength;
else
stream->missing += new_tlength - old_tlength;
stream->attr.tlength = new_tlength;
if (client->version >= 15) {
struct message *msg;
lat_usec = minreq * SPA_USEC_PER_SEC / stream->ss.rate;
msg = message_alloc(impl, -1, 0);
message_put(msg,
TAG_U32, COMMAND_PLAYBACK_BUFFER_ATTR_CHANGED,
TAG_U32, -1,
TAG_U32, stream->channel,
TAG_U32, stream->attr.maxlength,
TAG_U32, stream->attr.tlength,
TAG_U32, stream->attr.prebuf,
TAG_U32, stream->attr.minreq,
TAG_USEC, lat_usec,
TAG_INVALID);
return client_queue_message(client, msg);
}
return 0;
}