From 4b86ff0e6cfea2c34be71ebe1102eb307bd5dc0b Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 16 Jun 2004 00:05:30 +0000
Subject: got mmap oss output working

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@20 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/protocol-simple.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

(limited to 'src/protocol-simple.c')

diff --git a/src/protocol-simple.c b/src/protocol-simple.c
index 1803936e..f779a56a 100644
--- a/src/protocol-simple.c
+++ b/src/protocol-simple.c
@@ -56,6 +56,7 @@ static void destroy_connection(struct connection *c) {
 static int do_read(struct connection *c) {
     struct memchunk chunk;
     ssize_t r;
+    uint32_t u1, u2;
 
     if (!iochannel_is_readable(c->io))
         return 0;
@@ -66,8 +67,6 @@ static int do_read(struct connection *c) {
     chunk.memblock = memblock_new(BUFSIZE);
     assert(chunk.memblock);
 
-    memblock_stamp(chunk.memblock);
-    
     if ((r = iochannel_read(c->io, chunk.memblock->data, BUFSIZE)) <= 0) {
         fprintf(stderr, "read(): %s\n", r == 0 ? "EOF" : strerror(errno));
         memblock_unref(chunk.memblock);
@@ -82,6 +81,13 @@ static int do_read(struct connection *c) {
     memblockq_push(c->input_memblockq, &chunk, 0);
     memblock_unref(chunk.memblock);
     sink_notify(c->sink_input->sink);
+
+
+    u1 = memblockq_get_latency(c->input_memblockq);
+    u2 = sink_get_latency(c->sink_input->sink);
+
+    fprintf(stderr, "latency: %u+%u=%u\r", u1, u2, u1+u2);
+    
     return 0;
 }
 
@@ -96,7 +102,9 @@ static int do_write(struct connection *c) {
         return 0;    
 
     assert(c->output_memblockq);
-    memblockq_peek(c->output_memblockq, &chunk);
+    if (memblockq_peek(c->output_memblockq, &chunk) < 0)
+        return 0;
+        
     assert(chunk.memblock && chunk.length);
     
     if ((r = iochannel_write(c->io, chunk.memblock->data+chunk.index, chunk.length)) < 0) {
@@ -145,6 +153,9 @@ static void source_output_push_cb(struct source_output *o, struct memchunk *chun
     assert(o && c && chunk);
 
     memblockq_push(c->output_memblockq, chunk, 0);
+
+    if (do_write(c) < 0)
+        destroy_connection(c);
 }
 
 static void source_output_kill_cb(struct source_output *o) {
@@ -205,7 +216,7 @@ static void on_connection(struct socket_server*s, struct iochannel *io, void *us
         c->source_output->kill = source_output_kill_cb;
         c->source_output->userdata = c;
 
-        l = 5*bytes_per_second(&DEFAULT_SAMPLE_SPEC);
+        l = 5*bytes_per_second(&DEFAULT_SAMPLE_SPEC); /* 5s */
         c->output_memblockq = memblockq_new(l, sample_size(&DEFAULT_SAMPLE_SPEC), l/2);
     }
 
@@ -225,7 +236,7 @@ static void on_connection(struct socket_server*s, struct iochannel *io, void *us
         c->sink_input->kill = sink_input_kill_cb;
         c->sink_input->userdata = c;
 
-        l = 5*bytes_per_second(&DEFAULT_SAMPLE_SPEC);
+        l = bytes_per_second(&DEFAULT_SAMPLE_SPEC)/2; /* half a second */
         c->input_memblockq = memblockq_new(l, sample_size(&DEFAULT_SAMPLE_SPEC), l/2);
     }
 
-- 
cgit