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Port: Add tag param

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The tag param has a list of arbitrary key/value pairs. Like the Latency
param, it travels up and downstream. Mixers will append the info
dictionaries or do some more fancy merging.

The purpose is to transport arbirary metadata, out-of-band, through the
graph and it's used for stream metadata and other stream properties.
This commit is contained in:
Wim Taymans 2023-08-24 16:41:21 +02:00
parent 6bf42e9bcd
commit 41dcac0ecd
20 changed files with 566 additions and 24 deletions
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3
test/test-spa-utils.c
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@ -125,7 +125,8 @@ PWTEST(utils_abi)
pwtest_int_eq(SPA_TYPE_OBJECT_Profiler, 0x4000a);
pwtest_int_eq(SPA_TYPE_OBJECT_ParamLatency, 0x4000b);
pwtest_int_eq(SPA_TYPE_OBJECT_ParamProcessLatency, 0x4000c);
pwtest_int_eq(_SPA_TYPE_OBJECT_LAST, 0x4000d);
pwtest_int_eq(SPA_TYPE_OBJECT_ParamTag, 0x4000d);
pwtest_int_eq(_SPA_TYPE_OBJECT_LAST, 0x4000e);
pwtest_int_eq(SPA_TYPE_VENDOR_PipeWire, 0x02000000);
pwtest_int_eq(SPA_TYPE_VENDOR_Other, 0x7f000000);