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Allow read-only or non-existing sink input volume.

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There are two known cases where read-only or non-existing sink input volume is
relevant: passthrough streams and the planned volume sharing logic.
Passthrough streams don't have volume at all, and the volume sharing logic
requires read-only sink input volume. This commit is primarily working towards
the volume sharing feature, but support for non-existing sink input volume is
also added, because it is so closely related to read-only volume.

Some unrelated refactoring in iface-stream.c creeped into this commit too (new
function: stream_to_string()).
This commit is contained in:
Tanu Kaskinen 2011-02-14 13:41:06 +02:00 • committed by Colin Guthrie
parent fa12d2a8a8
commit 99ddca89cd
9 changed files with 156 additions and 63 deletions
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2
src/pulse/introspect.h
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@ -503,6 +503,8 @@ typedef struct pa_sink_input_info {
int mute; /**< Stream muted \since 0.9.7 */
pa_proplist *proplist; /**< Property list \since 0.9.11 */
int corked; /**< Stream corked \since 1.0 */
int has_volume; /**< Stream has volume. If not set, then the meaning of this struct's volume member is unspecified. \since 1.0 */
int read_only_volume; /**< Stream volume can only be read. Although volume control is disabled, the stream volume is still not necessarily constant. \since 1.0 */
} pa_sink_input_info;
/** Callback prototype for pa_context_get_sink_input_info() and friends*/