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1) Add flexible seeking support (including absolute) for memory block queues and playback streams

Browse source 
2) Add support to synchronize multiple playback streams
3) add two tests for 1) and 2)
4) s/PA_ERROR/PA_ERR/
5) s/PA_ERROR_OK/PA_OK/
6) update simple API to deal properly with new peek/drop recording API
7) add beginnings of proper validity checking on API calls in client libs (needs to be extended)
8) report playback buffer overflows/underflows to the client
9) move client side recording mcalign stuff into the memblockq 
10) create typedefs for a bunch of API callback prototypes
11) simplify handling of HUP poll() events

Yes, i know, it's usually better to commit a lot of small patches instead of a
single big one. In this case however, this would have contradicted the other
rule: never commit broken or incomplete stuff.

*** This stuff needs a lot of additional testing! ***


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@511 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-02-20 04:05:16 +00:00
parent 0876b1ba82
commit 304449002c
38 changed files with 1983 additions and 796 deletions
Download patch file Download diff file Expand all files Collapse all files

66
src/polypcore/protocol-simple.c
View file

@ -52,6 +52,8 @@ struct connection {
pa_memblockq *input_memblockq, *output_memblockq;
pa_defer_event *defer_event;
int dead;
struct {
pa_memblock *current_memblock;
size_t memblock_index, fragment_size;
@ -130,7 +132,7 @@ static int do_read(struct connection *c) {
}
if ((r = pa_iochannel_read(c->io, (uint8_t*) c->playback.current_memblock->data+c->playback.memblock_index, l)) <= 0) {
pa_log(__FILE__": read() failed: %s\n", r == 0 ? "EOF" : strerror(errno));
pa_log_debug(__FILE__": read() failed: %s\n", r == 0 ? "EOF" : strerror(errno));
return -1;
}
@ -142,7 +144,7 @@ static int do_read(struct connection *c) {
c->playback.memblock_index += r;
assert(c->input_memblockq);
pa_memblockq_push_align(c->input_memblockq, &chunk, 0);
pa_memblockq_push_align(c->input_memblockq, &chunk);
assert(c->sink_input);
pa_sink_notify(c->sink_input->sink);
@ -170,32 +172,46 @@ static int do_write(struct connection *c) {
pa_memblockq_drop(c->output_memblockq, &chunk, r);
pa_memblock_unref(chunk.memblock);
pa_source_notify(c->source_output->source);
return 0;
}
static void do_work(struct connection *c) {
assert(c);
assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable);
c->protocol->core->mainloop->defer_enable(c->defer_event, 0);
if (pa_iochannel_is_writable(c->io))
if (do_write(c) < 0)
goto fail;
if (c->dead)
return;
if (pa_iochannel_is_readable(c->io))
if (pa_iochannel_is_readable(c->io)) {
if (do_read(c) < 0)
goto fail;
} else if (pa_iochannel_is_hungup(c->io))
goto fail;
if (pa_iochannel_is_hungup(c->io))
c->protocol->core->mainloop->defer_enable(c->defer_event, 1);
if (pa_iochannel_is_writable(c->io)) {
if (do_write(c) < 0)
goto fail;
}
return;
fail:
connection_free(c);
if (c->sink_input) {
c->dead = 1;
pa_iochannel_free(c->io);
c->io = NULL;
pa_memblockq_prebuf_disable(c->input_memblockq);
pa_sink_notify(c->sink_input->sink);
} else
connection_free(c);
}
/*** sink_input callbacks ***/
@ -205,8 +221,13 @@ static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
assert(i && i->userdata && chunk);
c = i->userdata;
if (pa_memblockq_peek(c->input_memblockq, chunk) < 0)
if (pa_memblockq_peek(c->input_memblockq, chunk) < 0) {
if (c->dead)
connection_free(c);
return -1;
}
return 0;
}
@ -240,7 +261,7 @@ static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk)
struct connection *c = o->userdata;
assert(o && c && chunk);
pa_memblockq_push(c->output_memblockq, chunk, 0);
pa_memblockq_push(c->output_memblockq, chunk);
/* do something */
assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable);
@ -307,6 +328,7 @@ static void on_connection(pa_socket_server*s, pa_iochannel *io, void *userdata)
c->playback.current_memblock = NULL;
c->playback.memblock_index = 0;
c->playback.fragment_size = 0;
c->dead = 0;
pa_iochannel_socket_peer_to_string(io, cname, sizeof(cname));
c->client = pa_client_new(p->core, __FILE__, cname);
@ -339,7 +361,15 @@ static void on_connection(pa_socket_server*s, pa_iochannel *io, void *userdata)
c->sink_input->userdata = c;
l = (size_t) (pa_bytes_per_second(&p->sample_spec)*PLAYBACK_BUFFER_SECONDS);
c->input_memblockq = pa_memblockq_new(l, 0, pa_frame_size(&p->sample_spec), l/2, l/PLAYBACK_BUFFER_FRAGMENTS, p->core->memblock_stat);
c->input_memblockq = pa_memblockq_new(
0,
l,
0,
pa_frame_size(&p->sample_spec),
(size_t) -1,
l/PLAYBACK_BUFFER_FRAGMENTS,
NULL,
p->core->memblock_stat);
assert(c->input_memblockq);
pa_iochannel_socket_set_rcvbuf(io, l/PLAYBACK_BUFFER_FRAGMENTS*5);
c->playback.fragment_size = l/10;
@ -368,7 +398,15 @@ static void on_connection(pa_socket_server*s, pa_iochannel *io, void *userdata)
c->source_output->userdata = c;
l = (size_t) (pa_bytes_per_second(&p->sample_spec)*RECORD_BUFFER_SECONDS);
c->output_memblockq = pa_memblockq_new(l, 0, pa_frame_size(&p->sample_spec), 0, 0, p->core->memblock_stat);
c->output_memblockq = pa_memblockq_new(
0,
l,
0,
pa_frame_size(&p->sample_spec),
1,
0,
NULL,
p->core->memblock_stat);
pa_iochannel_socket_set_sndbuf(io, l/RECORD_BUFFER_FRAGMENTS*2);
}