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make use of SO_TIMESTAMP timestamp for accuracy and leave smoother paused until we have data

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This commit is contained in:
Lennart Poettering 2009-04-07 00:50:47 +02:00
parent f204c0fe43
commit 2c2713a72c
3 changed files with 62 additions and 11 deletions
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21
src/modules/rtp/rtp.c
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@ -162,13 +162,16 @@ pa_rtp_context* pa_rtp_context_init_recv(pa_rtp_context *c, int fd, size_t frame
return c;
}
int pa_rtp_recv(pa_rtp_context *c, pa_memchunk *chunk, pa_mempool *pool) {
int pa_rtp_recv(pa_rtp_context *c, pa_memchunk *chunk, pa_mempool *pool, struct timeval *tstamp) {
int size;
struct msghdr m;
struct cmsghdr *cm;
struct iovec iov;
uint32_t header;
unsigned cc;
ssize_t r;
uint8_t aux[1024];
pa_bool_t found_tstamp = FALSE;
pa_assert(c);
pa_assert(chunk);
@ -208,8 +211,8 @@ int pa_rtp_recv(pa_rtp_context *c, pa_memchunk *chunk, pa_mempool *pool) {
m.msg_namelen = 0;
m.msg_iov = &iov;
m.msg_iovlen = 1;
m.msg_control = NULL;
m.msg_controllen = 0;
m.msg_control = aux;
m.msg_controllen = sizeof(aux);
m.msg_flags = 0;
r = recvmsg(c->fd, &m, 0);
@ -275,6 +278,18 @@ int pa_rtp_recv(pa_rtp_context *c, pa_memchunk *chunk, pa_mempool *pool) {
pa_memchunk_reset(&c->memchunk);
}
for (cm = CMSG_FIRSTHDR(&m); cm; cm = CMSG_NXTHDR(&m, cm)) {
if (cm->cmsg_level == SOL_SOCKET && cm->cmsg_type == SO_TIMESTAMP)
memcpy(tstamp, CMSG_DATA(cm), sizeof(struct timeval));
found_tstamp = TRUE;
break;
}
if (!found_tstamp) {
pa_log_warn("Couldn't find SO_TIMESTAMP data in auxiliary recvmsg() data!");
memset(tstamp, 0, sizeof(tstamp));
}
return 0;
fail: