jp9000/obs-studio
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix requested latency for pulseaudio plugin

Browse Source 
When the PA_STREAM_ADJUST_LATENCY flag is passed, pulse will interpret
the fragsize attribute as a literal targeted latency.
This commit is contained in:
fryshorts 2014-05-21 22:26:46 +02:00
parent 66d8ad8eaf
commit e0536e70ba
1 changed files with 7 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
plugins/linux-pulseaudio/pulse-input.c
View File

@ -67,15 +67,6 @@ static enum audio_format pulse_to_obs_audio_format(
return AUDIO_FORMAT_UNKNOWN;
}
/**
* Get the buffer size needed for length msec with current settings
*/
static uint_fast32_t get_buffer_size(struct pulse_data *data,
uint_fast32_t length)
{
return (length * data->samples_per_sec * data->bytes_per_frame) / 1000;
}
/**
* Get latency for a pulse audio stream
*/
@ -175,7 +166,12 @@ static void pulse_server_info(pa_context *c, const pa_server_info *i,
}
/**
* start recording
* Start recording
*
* We request the default format used by pulse here because the data will be
* converted and possibly re-sampled by obs anyway.
*
* The targeted latency for recording is 25ms.
*/
static int_fast32_t pulse_start_recording(struct pulse_data *data)
{
@ -209,11 +205,8 @@ static int_fast32_t pulse_start_recording(struct pulse_data *data)
pulse_unlock();
pa_buffer_attr attr;
attr.fragsize = get_buffer_size(data, 250);
attr.fragsize = 25000;
attr.maxlength = (uint32_t) -1;
attr.minreq = (uint32_t) -1;
attr.prebuf = (uint32_t) -1;
attr.tlength = (uint32_t) -1;
pa_stream_flags_t flags =
PA_STREAM_INTERPOLATE_TIMING