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add a "length" argument to the seek functions, as an optimization to request a certain block size if any data needs to be generated. this is merely a hint.

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1833 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-09-16 22:00:38 +00:00
parent 5df7a85473
commit 1d1eda6059
11 changed files with 94 additions and 50 deletions
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10
src/pulsecore/sound-file-stream.c
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@ -44,8 +44,6 @@
#include "sound-file-stream.h"
#define BUF_SIZE (1024*16)
typedef struct file_stream {
pa_msgobject parent;
pa_core *core;
@ -113,7 +111,7 @@ static void sink_input_kill_cb(pa_sink_input *i) {
file_stream_unlink(FILE_STREAM(i->userdata));
}
static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
file_stream *u;
pa_assert(i);
@ -128,7 +126,7 @@ static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
if (!u->memchunk.memblock) {
u->memchunk.memblock = pa_memblock_new(i->sink->core->mempool, BUF_SIZE);
u->memchunk.memblock = pa_memblock_new(i->sink->core->mempool, length);
u->memchunk.index = 0;
if (u->readf_function) {
@ -137,7 +135,7 @@ static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
size_t fs = pa_frame_size(&i->sample_spec);
p = pa_memblock_acquire(u->memchunk.memblock);
n = u->readf_function(u->sndfile, p, BUF_SIZE/fs);
n = u->readf_function(u->sndfile, p, length/fs);
pa_memblock_release(u->memchunk.memblock);
if (n <= 0)
@ -149,7 +147,7 @@ static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
void *p;
p = pa_memblock_acquire(u->memchunk.memblock);
n = sf_read_raw(u->sndfile, p, BUF_SIZE);
n = sf_read_raw(u->sndfile, p, length);
pa_memblock_release(u->memchunk.memblock);
if (n <= 0)