mirror of
https://github.com/rust-vmm/vhost-device.git
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Merge pull request #2 from dorindabassey/v_sound
sound: add PipeWire backend skeleton
This commit is contained in:
Stefano Garzarella
GitHub
commit
63db2e8b41
346
Cargo.lock
generated
346
Cargo.lock
generated
@ -11,6 +11,12 @@ dependencies = [
|
||||
"memchr",
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||||
]
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||||
|
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[[package]]
|
||||
name = "anyhow"
|
||||
version = "1.0.71"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8"
|
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|
||||
[[package]]
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name = "arc-swap"
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version = "1.6.0"
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@ -45,6 +51,28 @@ dependencies = [
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"which",
|
||||
]
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[[package]]
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||||
name = "bindgen"
|
||||
version = "0.64.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c4243e6031260db77ede97ad86c27e501d646a27ab57b59a574f725d98ab1fb4"
|
||||
dependencies = [
|
||||
"bitflags",
|
||||
"cexpr",
|
||||
"clang-sys",
|
||||
"lazy_static",
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"lazycell",
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||||
"log",
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"peeking_take_while",
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"proc-macro2",
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"quote",
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"regex",
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"rustc-hash",
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"shlex",
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"syn",
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"which",
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]
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[[package]]
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name = "bitflags"
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version = "1.3.2"
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@ -72,6 +100,16 @@ dependencies = [
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"nom",
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]
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[[package]]
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name = "cfg-expr"
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version = "0.15.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c8790cf1286da485c72cf5fc7aeba308438800036ec67d89425924c4807268c9"
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dependencies = [
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"smallvec",
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"target-lexicon",
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]
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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@ -126,6 +164,12 @@ dependencies = [
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"os_str_bytes",
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]
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[[package]]
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name = "cookie-factory"
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version = "0.3.2"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "396de984970346b0d9e93d1415082923c679e5ae5c3ee3dcbd104f5610af126b"
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[[package]]
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name = "dashmap"
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version = "5.4.0"
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@ -179,6 +223,17 @@ dependencies = [
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"winapi",
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]
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[[package]]
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name = "errno"
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version = "0.3.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4bcfec3a70f97c962c307b2d2c56e358cf1d00b558d74262b5f929ee8cc7e73a"
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dependencies = [
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"errno-dragonfly",
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"libc",
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"windows-sys 0.48.0",
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]
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[[package]]
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name = "errno-dragonfly"
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version = "0.1.2"
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@ -338,6 +393,16 @@ version = "2.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
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[[package]]
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name = "indexmap"
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version = "1.9.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
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"autocfg",
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"hashbrown",
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]
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[[package]]
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name = "instant"
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version = "0.1.12"
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@ -399,7 +464,7 @@ name = "libgpiod"
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version = "0.1.0"
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source = "git+https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/?rev=d8d3a84b2ddf#d8d3a84b2ddfc29670430fc73ff8483a44b8f61e"
|
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dependencies = [
|
||||
"errno",
|
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"errno 0.2.8",
|
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"intmap",
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"libc",
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"libgpiod-sys",
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@ -411,7 +476,7 @@ name = "libgpiod-sys"
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version = "0.1.0"
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source = "git+https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/?rev=d8d3a84b2ddf#d8d3a84b2ddfc29670430fc73ff8483a44b8f61e"
|
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dependencies = [
|
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"bindgen",
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"bindgen 0.63.0",
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"cc",
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]
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@ -425,6 +490,33 @@ dependencies = [
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"winapi",
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]
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[[package]]
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||||
name = "libspa"
|
||||
version = "0.6.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "667dfbb50c3d1f7ee1d33afdc04d1255923ece7642db3303046e7d63d997d77d"
|
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dependencies = [
|
||||
"bitflags",
|
||||
"cc",
|
||||
"cookie-factory",
|
||||
"errno 0.3.1",
|
||||
"libc",
|
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"libspa-sys",
|
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"nom",
|
||||
"system-deps",
|
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]
|
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|
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[[package]]
|
||||
name = "libspa-sys"
|
||||
version = "0.6.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "79cf5b88f52534df7ca88d451ae9628e22124e3cc5c60966465a7db479534c7a"
|
||||
dependencies = [
|
||||
"bindgen 0.64.0",
|
||||
"cc",
|
||||
"system-deps",
|
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]
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[[package]]
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name = "linux-raw-sys"
|
||||
version = "0.1.4"
|
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@ -456,12 +548,35 @@ version = "2.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
|
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|
||||
[[package]]
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||||
name = "memoffset"
|
||||
version = "0.7.1"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5de893c32cde5f383baa4c04c5d6dbdd735cfd4a794b0debdb2bb1b421da5ff4"
|
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dependencies = [
|
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"autocfg",
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]
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|
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[[package]]
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name = "minimal-lexical"
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version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
|
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|
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[[package]]
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name = "nix"
|
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version = "0.26.2"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "bfdda3d196821d6af13126e40375cdf7da646a96114af134d5f417a9a1dc8e1a"
|
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dependencies = [
|
||||
"bitflags",
|
||||
"cfg-if",
|
||||
"libc",
|
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"memoffset",
|
||||
"pin-utils",
|
||||
"static_assertions",
|
||||
]
|
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[[package]]
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name = "nom"
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version = "7.1.3"
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@ -535,6 +650,41 @@ version = "0.1.0"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
|
||||
|
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[[package]]
|
||||
name = "pipewire"
|
||||
version = "0.6.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "dc2180a4a84b855be86e6cd72fa6fd4318278871d2b1082e7cd05fe64b135ccb"
|
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dependencies = [
|
||||
"anyhow",
|
||||
"bitflags",
|
||||
"errno 0.3.1",
|
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"libc",
|
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"libspa",
|
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"libspa-sys",
|
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"nix",
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"once_cell",
|
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"pipewire-sys",
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"thiserror",
|
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]
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[[package]]
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name = "pipewire-sys"
|
||||
version = "0.6.0"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "a95290eedb7fb6aa3922fdc0261cd0ddeb940abcdbdef28778928106554d2123"
|
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dependencies = [
|
||||
"bindgen 0.64.0",
|
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"libspa-sys",
|
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"system-deps",
|
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]
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[[package]]
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name = "pkg-config"
|
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version = "0.3.27"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "26072860ba924cbfa98ea39c8c19b4dd6a4a25423dbdf219c1eca91aa0cf6964"
|
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[[package]]
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name = "ppv-lite86"
|
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version = "0.2.17"
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@ -652,7 +802,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "fd5c6ff11fecd55b40746d1995a02f2eb375bf8c00d192d521ee09f42bef37bc"
|
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dependencies = [
|
||||
"bitflags",
|
||||
"errno",
|
||||
"errno 0.2.8",
|
||||
"io-lifetimes",
|
||||
"libc",
|
||||
"linux-raw-sys",
|
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@ -665,6 +815,21 @@ version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
|
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|
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[[package]]
|
||||
name = "serde"
|
||||
version = "1.0.163"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2113ab51b87a539ae008b5c6c02dc020ffa39afd2d83cffcb3f4eb2722cebec2"
|
||||
|
||||
[[package]]
|
||||
name = "serde_spanned"
|
||||
version = "0.6.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
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|
||||
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|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serial_test"
|
||||
version = "1.0.0"
|
||||
@ -711,6 +876,12 @@ version = "1.10.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
|
||||
|
||||
[[package]]
|
||||
name = "static_assertions"
|
||||
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|
||||
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||||
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||||
|
||||
[[package]]
|
||||
name = "strsim"
|
||||
version = "0.10.0"
|
||||
@ -728,6 +899,25 @@ dependencies = [
|
||||
"unicode-ident",
|
||||
]
|
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|
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[[package]]
|
||||
name = "system-deps"
|
||||
version = "6.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e5fa6fb9ee296c0dc2df41a656ca7948546d061958115ddb0bcaae43ad0d17d2"
|
||||
dependencies = [
|
||||
"cfg-expr",
|
||||
"heck",
|
||||
"pkg-config",
|
||||
"toml",
|
||||
"version-compare",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "target-lexicon"
|
||||
version = "0.12.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
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|
||||
|
||||
[[package]]
|
||||
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|
||||
version = "3.4.0"
|
||||
@ -770,12 +960,52 @@ dependencies = [
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "toml"
|
||||
version = "0.7.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
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||||
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|
||||
"serde",
|
||||
"serde_spanned",
|
||||
"toml_datetime",
|
||||
"toml_edit",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "toml_datetime"
|
||||
version = "0.6.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
dependencies = [
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "toml_edit"
|
||||
version = "0.19.10"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2380d56e8670370eee6566b0bfd4265f65b3f432e8c6d85623f728d4fa31f739"
|
||||
dependencies = [
|
||||
"indexmap",
|
||||
"serde",
|
||||
"serde_spanned",
|
||||
"toml_datetime",
|
||||
"winnow",
|
||||
]
|
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|
||||
[[package]]
|
||||
name = "unicode-ident"
|
||||
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|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
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|
||||
|
||||
[[package]]
|
||||
name = "version-compare"
|
||||
version = "0.1.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "579a42fc0b8e0c63b76519a339be31bed574929511fa53c1a3acae26eb258f29"
|
||||
|
||||
[[package]]
|
||||
name = "version_check"
|
||||
version = "0.9.4"
|
||||
@ -868,9 +1098,14 @@ dependencies = [
|
||||
name = "vhost-user-sound"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"bindgen 0.64.0",
|
||||
"clap",
|
||||
"env_logger",
|
||||
"libspa",
|
||||
"libspa-sys",
|
||||
"log",
|
||||
"pipewire",
|
||||
"pipewire-sys",
|
||||
"serial_test",
|
||||
"thiserror",
|
||||
"vhost",
|
||||
@ -1011,13 +1246,13 @@ version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
|
||||
dependencies = [
|
||||
"windows_aarch64_gnullvm",
|
||||
"windows_aarch64_msvc",
|
||||
"windows_i686_gnu",
|
||||
"windows_i686_msvc",
|
||||
"windows_x86_64_gnu",
|
||||
"windows_x86_64_gnullvm",
|
||||
"windows_x86_64_msvc",
|
||||
"windows_aarch64_gnullvm 0.42.1",
|
||||
"windows_aarch64_msvc 0.42.2",
|
||||
"windows_i686_gnu 0.42.1",
|
||||
"windows_i686_msvc 0.42.1",
|
||||
"windows_x86_64_gnu 0.42.1",
|
||||
"windows_x86_64_gnullvm 0.42.2",
|
||||
"windows_x86_64_msvc 0.42.1",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
@ -1026,7 +1261,16 @@ version = "0.45.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
|
||||
dependencies = [
|
||||
"windows-targets",
|
||||
"windows-targets 0.42.1",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-sys"
|
||||
version = "0.48.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
|
||||
dependencies = [
|
||||
"windows-targets 0.48.0",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
@ -1035,13 +1279,28 @@ version = "0.42.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8e2522491fbfcd58cc84d47aeb2958948c4b8982e9a2d8a2a35bbaed431390e7"
|
||||
dependencies = [
|
||||
"windows_aarch64_gnullvm",
|
||||
"windows_aarch64_msvc",
|
||||
"windows_i686_gnu",
|
||||
"windows_i686_msvc",
|
||||
"windows_x86_64_gnu",
|
||||
"windows_x86_64_gnullvm",
|
||||
"windows_x86_64_msvc",
|
||||
"windows_aarch64_gnullvm 0.42.1",
|
||||
"windows_aarch64_msvc 0.42.2",
|
||||
"windows_i686_gnu 0.42.1",
|
||||
"windows_i686_msvc 0.42.1",
|
||||
"windows_x86_64_gnu 0.42.1",
|
||||
"windows_x86_64_gnullvm 0.42.2",
|
||||
"windows_x86_64_msvc 0.42.1",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-targets"
|
||||
version = "0.48.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7b1eb6f0cd7c80c79759c929114ef071b87354ce476d9d94271031c0497adfd5"
|
||||
dependencies = [
|
||||
"windows_aarch64_gnullvm 0.48.0",
|
||||
"windows_aarch64_msvc 0.48.0",
|
||||
"windows_i686_gnu 0.48.0",
|
||||
"windows_i686_msvc 0.48.0",
|
||||
"windows_x86_64_gnu 0.48.0",
|
||||
"windows_x86_64_gnullvm 0.48.0",
|
||||
"windows_x86_64_msvc 0.48.0",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
@ -1050,38 +1309,89 @@ version = "0.42.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8c9864e83243fdec7fc9c5444389dcbbfd258f745e7853198f365e3c4968a608"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.48.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.42.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.48.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.42.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "de3887528ad530ba7bdbb1faa8275ec7a1155a45ffa57c37993960277145d640"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.48.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.42.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bf4d1122317eddd6ff351aa852118a2418ad4214e6613a50e0191f7004372605"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.48.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.42.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c1040f221285e17ebccbc2591ffdc2d44ee1f9186324dd3e84e99ac68d699c45"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.48.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.42.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.48.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.42.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.48.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
|
||||
|
||||
[[package]]
|
||||
name = "winnow"
|
||||
version = "0.4.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "61de7bac303dc551fe038e2b3cef0f571087a47571ea6e79a87692ac99b99699"
|
||||
dependencies = [
|
||||
"memchr",
|
||||
]
|
||||
|
||||
@ -12,6 +12,7 @@ edition = "2018"
|
||||
[features]
|
||||
default = ["null-backend"]
|
||||
null-backend = []
|
||||
pw-backend = ["pipewire", "libspa", "pipewire-sys", "libspa-sys", "bindgen"]
|
||||
|
||||
[dependencies]
|
||||
clap = { version = "4.1", features = ["derive"] }
|
||||
@ -23,6 +24,11 @@ vhost-user-backend = "0.8"
|
||||
virtio-bindings = "0.2"
|
||||
vm-memory = "0.10"
|
||||
vmm-sys-util = "0.11"
|
||||
pipewire = { version = "0.6.0", optional = true }
|
||||
libspa = { version = "0.6.0", optional = true }
|
||||
pipewire-sys = { version = "0.6.0", optional = true }
|
||||
libspa-sys = { version = "0.6.0", optional = true }
|
||||
bindgen = { version = "0.64.0", optional = true }
|
||||
|
||||
[dev-dependencies]
|
||||
serial_test = "1.0"
|
||||
|
||||
@ -3,8 +3,13 @@
|
||||
#[cfg(feature = "null-backend")]
|
||||
mod null;
|
||||
|
||||
#[cfg(feature = "pw-backend")]
|
||||
mod pw_backend;
|
||||
|
||||
#[cfg(feature = "null-backend")]
|
||||
use self::null::NullBackend;
|
||||
#[cfg(feature = "pw-backend")]
|
||||
use self::pw_backend::PwBackend;
|
||||
use crate::{Error, Result, SoundRequest};
|
||||
|
||||
pub trait AudioBackend {
|
||||
@ -17,6 +22,8 @@ pub fn alloc_audio_backend(name: String) -> Result<Box<dyn AudioBackend + Send +
|
||||
match name.as_str() {
|
||||
#[cfg(feature = "null-backend")]
|
||||
"null" => Ok(Box::new(NullBackend::new())),
|
||||
#[cfg(feature = "pw-backend")]
|
||||
"pipewire" => Ok(Box::new(PwBackend::new())),
|
||||
_ => Err(Error::AudioBackendNotSupported),
|
||||
}
|
||||
}
|
||||
|
||||
28
crates/sound/src/audio_backends/pw_backend.rs
Normal file
28
crates/sound/src/audio_backends/pw_backend.rs
Normal file
@ -0,0 +1,28 @@
|
||||
// Pipewire backend device
|
||||
// SPDX-License-Identifier: Apache-2.0 or BSD-3-Clause
|
||||
|
||||
use super::AudioBackend;
|
||||
use crate::{Error, Result, SoundRequest};
|
||||
|
||||
pub struct PwBackend {}
|
||||
|
||||
impl PwBackend {
|
||||
pub fn new() -> Self {
|
||||
PwBackend {}
|
||||
}
|
||||
}
|
||||
|
||||
impl AudioBackend for PwBackend {
|
||||
fn write(&self, _req: &SoundRequest) -> Result<()> {
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn read(&self, req: &mut SoundRequest) -> Result<()> {
|
||||
let buf = req.data_slice().ok_or(Error::SoundReqMissingData)?;
|
||||
let zero_mem = vec![0u8; buf.len()];
|
||||
|
||||
buf.copy_from(&zero_mem);
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
@ -342,4 +342,4 @@ pub struct VirtioSoundChmapInfo {
|
||||
}
|
||||
// SAFETY: The layout of the structure is fixed and can be initialized by
|
||||
// reading its content from byte array.
|
||||
unsafe impl ByteValued for VirtioSoundChmapInfo {}
|
||||
unsafe impl ByteValued for VirtioSoundChmapInfo {}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user