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use (uint32_t) -1 to signify default buffer_attr values instead of 0, to allow prebuf=0

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Lennart Poettering 2008-06-27 00:34:17 +02:00
parent 2b764d4294
commit 7755f759aa
4 changed files with 37 additions and 18 deletions
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17
src/pulse/stream.c
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@ -122,7 +122,12 @@ pa_stream *pa_stream_new_with_proplist(
/* We initialize der target length here, so that if the user
* passes no explicit buffering metrics the default is similar to
* what older PA versions provided. */
s->buffer_attr.maxlength = (uint32_t) -1;
s->buffer_attr.tlength = pa_usec_to_bytes(250*PA_USEC_PER_MSEC, ss); /* 250ms of buffering */
s->buffer_attr.minreq = (uint32_t) -1;
s->buffer_attr.prebuf = (uint32_t) -1;
s->buffer_attr.fragsize = (uint32_t) -1;
s->device_index = PA_INVALID_INDEX;
s->device_name = NULL;
@ -713,20 +718,20 @@ static void automatic_buffer_attr(pa_stream *s, pa_buffer_attr *attr, const pa_s
/* We choose fairly conservative values here, to not confuse
* old clients with extremely large playback buffers */
if (!attr->maxlength <= 0)
if (attr->maxlength == (uint32_t) -1)
attr->maxlength = 4*1024*1024; /* 4MB is the maximum queue length PulseAudio <= 0.9.9 supported. */
if (!attr->tlength <= 0)
if (attr->tlength == (uint32_t) -1)
attr->tlength = pa_usec_to_bytes(250*PA_USEC_PER_MSEC, ss); /* 250ms of buffering */
if (!attr->minreq <= 0)
if (attr->minreq == (uint32_t) -1)
attr->minreq = (attr->tlength)/5; /* Ask for more data when there are only 200ms left in the playback buffer */
if (!attr->prebuf)
if (attr->prebuf == (uint32_t) -1)
attr->prebuf = attr->tlength; /* Start to play only when the playback is fully filled up once */
if (!attr->fragsize)
attr->fragsize = attr->tlength; /* Pass data to the app only when the buffer is filled up once */
if (attr->fragsize == (uint32_t) -1)
attr->fragsize = attr->tlength; /* Pass data to the app only when the buffer is filled up once */
}
void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {