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#include <stdlib.h>
#include <assert.h>
#include "play-memchunk.h"
#include "sink-input.h"
#include "xmalloc.h"
static void sink_input_kill(struct pa_sink_input *i) {
struct pa_memchunk *c;
assert(i && i->userdata);
c = i->userdata;
pa_memblock_unref(c->memblock);
pa_xfree(c);
pa_sink_input_free(i);
}
static int sink_input_peek(struct pa_sink_input *i, struct pa_memchunk *chunk) {
struct pa_memchunk *c;
assert(i && chunk && i->userdata);
c = i->userdata;
if (c->length <= 0)
return -1;
assert(c->memblock && c->memblock->length);
*chunk = *c;
pa_memblock_ref(c->memblock);
return 0;
}
static void si_kill(void *i) {
sink_input_kill(i);
}
static void sink_input_drop(struct pa_sink_input *i, size_t length) {
struct pa_memchunk *c;
assert(i && length && i->userdata);
c = i->userdata;
assert(length <= c->length);
c->length -= length;
c->index += length;
if (c->length <= 0)
pa_mainloop_api_once(i->sink->core->mainloop, si_kill, i);
}
int pa_play_memchunk(struct pa_sink *sink, const char *name, const struct pa_sample_spec *ss, const struct pa_memchunk *chunk, uint32_t volume) {
struct pa_sink_input *si;
struct pa_memchunk *nchunk;
assert(sink && chunk);
if (volume <= 0)
return 0;
if (!(si = pa_sink_input_new(sink, name, ss)))
return -1;
si->volume = volume;
si->peek = sink_input_peek;
si->drop = sink_input_drop;
si->kill = sink_input_kill;
si->userdata = nchunk = pa_xmalloc(sizeof(struct pa_memchunk));
*nchunk = *chunk;
pa_memblock_ref(chunk->memblock);
pa_sink_notify(sink);
return 0;
}
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