8 #include "sample-util.h"
10 #define CONVERT_BUFFER_LENGTH 4096
12 struct pa_sink_input
* pa_sink_input_new(struct pa_sink
*s
, const char *name
, const struct pa_sample_spec
*spec
) {
13 struct pa_sink_input
*i
;
14 struct pa_resampler
*resampler
= NULL
;
19 if (!pa_sample_spec_equal(spec
, &s
->sample_spec
))
20 if (!(resampler
= pa_resampler_new(spec
, &s
->sample_spec
)))
23 i
= malloc(sizeof(struct pa_sink_input
));
25 i
->name
= name
? strdup(name
) : NULL
;
29 i
->sample_spec
= *spec
;
34 i
->get_latency
= NULL
;
37 i
->volume
= PA_VOLUME_NORM
;
39 i
->resampled_chunk
.memblock
= NULL
;
40 i
->resampled_chunk
.index
= i
->resampled_chunk
.length
= 0;
41 i
->resampler
= resampler
;
44 r
= pa_idxset_put(s
->core
->sink_inputs
, i
, &i
->index
);
45 assert(r
== 0 && i
->index
!= PA_IDXSET_INVALID
);
46 r
= pa_idxset_put(s
->inputs
, i
, NULL
);
49 pa_sample_snprint(st
, sizeof(st
), spec
);
50 fprintf(stderr
, "sink-input: created %u \"%s\" on %u with sample spec \"%s\"\n", i
->index
, i
->name
, s
->index
, st
);
55 void pa_sink_input_free(struct pa_sink_input
* i
) {
58 assert(i
->sink
&& i
->sink
->core
);
59 pa_idxset_remove_by_data(i
->sink
->core
->sink_inputs
, i
, NULL
);
60 pa_idxset_remove_by_data(i
->sink
->inputs
, i
, NULL
);
62 if (i
->resampled_chunk
.memblock
)
63 pa_memblock_unref(i
->resampled_chunk
.memblock
);
65 pa_resampler_free(i
->resampler
);
71 void pa_sink_input_kill(struct pa_sink_input
*i
) {
78 char *pa_sink_input_list_to_string(struct pa_core
*c
) {
80 struct pa_sink_input
*i
;
81 uint32_t index
= PA_IDXSET_INVALID
;
87 pa_strbuf_printf(s
, "%u sink input(s) available.\n", pa_idxset_ncontents(c
->sink_inputs
));
89 for (i
= pa_idxset_first(c
->sink_inputs
, &index
); i
; i
= pa_idxset_next(c
->sink_inputs
, &index
)) {
90 char ss
[PA_SAMPLE_SNPRINT_MAX_LENGTH
];
91 pa_sample_snprint(ss
, sizeof(ss
), &i
->sample_spec
);
94 s
, " index: %u\n\tname: <%s>\n\tsink: <%u>\n\tvolume: <0x%04x>\n\tlatency: <%u usec>\n\tsample_spec: <%s>\n",
99 pa_sink_input_get_latency(i
),
103 pa_strbuf_printf(s
, "\towner module: <%u>\n", i
->owner
->index
);
105 pa_strbuf_printf(s
, "\tclient: <%u>\n", i
->client
->index
);
108 return pa_strbuf_tostring_free(s
);
111 uint32_t pa_sink_input_get_latency(struct pa_sink_input
*i
) {
116 l
+= i
->get_latency(i
);
119 l
+= pa_sink_get_latency(i
->sink
);
125 int pa_sink_input_peek(struct pa_sink_input
*i
, struct pa_memchunk
*chunk
) {
126 assert(i
&& chunk
&& i
->peek
&& i
->drop
);
129 return i
->peek(i
, chunk
);
131 if (!i
->resampled_chunk
.memblock
) {
132 struct pa_memchunk tchunk
;
136 if ((ret
= i
->peek(i
, &tchunk
)) < 0)
139 l
= pa_resampler_request(i
->resampler
, CONVERT_BUFFER_LENGTH
);
140 if (tchunk
.length
> l
)
143 i
->drop(i
, tchunk
.length
);
145 pa_resampler_run(i
->resampler
, &tchunk
, &i
->resampled_chunk
);
146 pa_memblock_unref(tchunk
.memblock
);
149 assert(i
->resampled_chunk
.memblock
&& i
->resampled_chunk
.length
);
150 *chunk
= i
->resampled_chunk
;
151 pa_memblock_ref(i
->resampled_chunk
.memblock
);
155 void pa_sink_input_drop(struct pa_sink_input
*i
, size_t length
) {
163 assert(i
->resampled_chunk
.memblock
&& i
->resampled_chunk
.length
>= length
);
165 i
->resampled_chunk
.index
+= length
;
166 i
->resampled_chunk
.length
-= length
;
168 if (!i
->resampled_chunk
.length
) {
169 pa_memblock_unref(i
->resampled_chunk
.memblock
);
170 i
->resampled_chunk
.memblock
= NULL
;
171 i
->resampled_chunk
.index
= i
->resampled_chunk
.length
= 0;