mirror of
https://github.com/librespot-org/librespot.git
synced 2024-12-18 17:11:53 +00:00
Update GStreamer to 0.18 and clean up (#964)
* Update GStreamer backend to 0.18 * Don't manually go through all intermediate states when shutting down the GStreamer backend; that happens automatically * Don't initialize GStreamer twice * Use less stringly-typed API for configuring the appsrc * Create our own main context instead of stealing the default one; if the application somewhere else uses the default main context this would otherwise fail in interesting ways * Create GStreamer pipeline more explicitly instead of going via strings for everything * Add an audioresample element before the sink in case the sink doesn't support the sample rate * Remove unnecessary `as_bytes()` call * Use a GStreamer bus sync handler instead of spawning a new thread with a mainloop; it's only used for printing errors or when the end of the stream is reached, which can also be done as well when synchronously handling messages. * Change `expect()` calls to proper error returns wherever possible in GStreamer backend * Store asynchronously reported error in GStreamer backend and return them on next write * Update MSRV to 1.56
This commit is contained in:
Sebastian Dröge
GitHub
parent
009814679e
commit
ab562cc8d8
5 changed files with 176 additions and 163 deletions
6
.github/workflows/test.yml
vendored
6
.github/workflows/test.yml
vendored
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@ -55,7 +55,7 @@ jobs:
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matrix:
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os: [ubuntu-latest]
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toolchain:
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- 1.53 # MSRV (Minimum supported rust version)
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- 1.56 # MSRV (Minimum supported rust version)
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- stable
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experimental: [false]
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# Ignore failures in beta
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@ -113,7 +113,7 @@ jobs:
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matrix:
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os: [windows-latest]
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toolchain:
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- 1.53 # MSRV (Minimum supported rust version)
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- 1.56 # MSRV (Minimum supported rust version)
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- stable
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steps:
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- name: Checkout code
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@ -160,7 +160,7 @@ jobs:
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os: [ubuntu-latest]
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target: [armv7-unknown-linux-gnueabihf]
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toolchain:
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- 1.53 # MSRV (Minimum supported rust version)
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- 1.56 # MSRV (Minimum supported rust version)
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- stable
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steps:
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- name: Checkout code
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@ -7,7 +7,7 @@ In order to compile librespot, you will first need to set up a suitable Rust bui
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### Install Rust
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The easiest, and recommended way to get Rust is to use [rustup](https://rustup.rs). Once that’s installed, Rust's standard tools should be set up and ready to use.
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*Note: The current minimum required Rust version at the time of writing is 1.53.*
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*Note: The current minimum required Rust version at the time of writing is 1.56.*
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#### Additional Rust tools - `rustfmt`
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To ensure a consistent codebase, we utilise [`rustfmt`](https://github.com/rust-lang/rustfmt) and [`clippy`](https://github.com/rust-lang/rust-clippy), which are installed by default with `rustup` these days, else they can be installed manually with:
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160
Cargo.lock
generated
160
Cargo.lock
generated
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@ -67,6 +67,12 @@ version = "1.0.53"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "94a45b455c14666b85fc40a019e8ab9eb75e3a124e05494f5397122bc9eb06e0"
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[[package]]
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name = "array-init"
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version = "2.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6945cc5422176fc5e602e590c2878d2c2acd9a4fe20a4baa7c28022521698ec6"
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[[package]]
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name = "arrayvec"
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version = "0.7.2"
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@ -221,9 +227,9 @@ dependencies = [
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[[package]]
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name = "cfg-expr"
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version = "0.8.1"
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version = "0.9.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b412e83326147c2bb881f8b40edfbf9905b9b8abaebd0e47ca190ba62fda8f0e"
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checksum = "3431df59f28accaf4cb4eed4a9acc66bea3f3c3753aa6cdc2f024174ef232af7"
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dependencies = [
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"smallvec",
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]
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@ -502,12 +508,6 @@ dependencies = [
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"pkg-config",
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]
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[[package]]
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name = "either"
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version = "1.6.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
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[[package]]
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name = "encoding_rs"
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version = "0.8.30"
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@ -733,9 +733,9 @@ dependencies = [
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[[package]]
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name = "glib"
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version = "0.14.8"
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version = "0.15.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7c515f1e62bf151ef6635f528d05b02c11506de986e43b34a5c920ef0b3796a4"
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checksum = "e385b6c17a1add7d0fbc64d38e2e742346d3e8b22e5fa3734e5cdca2be24028d"
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dependencies = [
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"bitflags",
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"futures-channel",
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@ -748,13 +748,14 @@ dependencies = [
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"libc",
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"once_cell",
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"smallvec",
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"thiserror",
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]
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[[package]]
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name = "glib-macros"
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version = "0.14.1"
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version = "0.15.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2aad66361f66796bfc73f530c51ef123970eb895ffba991a234fcf7bea89e518"
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checksum = "e58b262ff65ef771003873cea8c10e0fe854f1c508d48d62a4111a1ff163f7d1"
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dependencies = [
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"anyhow",
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"heck",
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@ -767,9 +768,9 @@ dependencies = [
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[[package]]
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name = "glib-sys"
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version = "0.14.0"
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version = "0.15.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1c1d60554a212445e2a858e42a0e48cece1bd57b311a19a9468f70376cf554ae"
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checksum = "0c4f08dd67f74b223fedbbb30e73145b9acd444e67cc4d77d0598659b7eebe7e"
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dependencies = [
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"libc",
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"system-deps",
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@ -783,9 +784,9 @@ checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
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[[package]]
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name = "gobject-sys"
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version = "0.14.0"
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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 = "aa92cae29759dae34ab5921d73fff5ad54b3d794ab842c117e36cafc7994c3f5"
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checksum = "6edb1f0b3e4c08e2a0a490d1082ba9e902cdff8ff07091e85c6caec60d17e2ab"
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dependencies = [
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"glib-sys",
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"libc",
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@ -794,9 +795,9 @@ dependencies = [
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[[package]]
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name = "gstreamer"
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version = "0.17.4"
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version = "0.18.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c6a255f142048ba2c4a4dce39106db1965abe355d23f4b5335edea43a553faa4"
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checksum = "a54229ced7e44752bff52360549cd412802a4b1a19852b87346625ca9f6d4330"
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dependencies = [
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"bitflags",
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"cfg-if",
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@ -810,6 +811,7 @@ dependencies = [
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"num-integer",
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"num-rational",
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"once_cell",
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"option-operations",
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"paste",
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"pretty-hex",
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"thiserror",
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@ -817,9 +819,9 @@ dependencies = [
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[[package]]
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name = "gstreamer-app"
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version = "0.17.2"
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version = "0.18.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f73b8d33b1bbe9f22d0cf56661a1d2a2c9a0e099ea10e5f1f347be5038f5c043"
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checksum = "653b14862e385f6a568a5c54aee830c525277418d765e93cdac1c1b97e25f300"
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dependencies = [
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"bitflags",
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"futures-core",
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@ -834,9 +836,9 @@ dependencies = [
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[[package]]
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name = "gstreamer-app-sys"
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version = "0.17.0"
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version = "0.18.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "41865cfb8a5ddfa1161734a0d068dcd4689da852be0910b40484206408cfeafa"
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checksum = "c3b401f21d731b3e5de802487f25507fabd34de2dd007d582f440fb1c66a4fbb"
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dependencies = [
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"glib-sys",
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"gstreamer-base-sys",
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@ -846,10 +848,41 @@ dependencies = [
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]
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[[package]]
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name = "gstreamer-base"
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version = "0.17.2"
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name = "gstreamer-audio"
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version = "0.18.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2c0c1d8c62eb5d08fb80173609f2eea71d385393363146e4e78107facbd67715"
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checksum = "75cc407516c2f36576060767491f1134728af6d335a59937f09a61aab7abb72c"
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dependencies = [
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"array-init",
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"bitflags",
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"cfg-if",
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"glib",
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"gstreamer",
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"gstreamer-audio-sys",
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"gstreamer-base",
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"libc",
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"once_cell",
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]
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[[package]]
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name = "gstreamer-audio-sys"
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version = "0.18.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a34258fb53c558c0f41dad194037cbeaabf49d347570df11b8bd1c4897cf7d7c"
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dependencies = [
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"glib-sys",
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"gobject-sys",
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"gstreamer-base-sys",
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"gstreamer-sys",
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"libc",
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"system-deps",
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]
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[[package]]
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name = "gstreamer-base"
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version = "0.18.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "224f35f36582407caf58ded74854526beeecc23d0cf64b8d1c3e00584ed6863f"
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dependencies = [
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"bitflags",
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"cfg-if",
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[[package]]
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name = "gstreamer-base-sys"
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version = "0.17.0"
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version = "0.18.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "28169a7b58edb93ad8ac766f0fa12dcd36a2af4257a97ee10194c7103baf3e27"
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checksum = "a083493c3c340e71fa7c66eebda016e9fafc03eb1b4804cf9b2bad61994b078e"
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dependencies = [
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"glib-sys",
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"gobject-sys",
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[[package]]
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name = "gstreamer-sys"
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version = "0.17.3"
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version = "0.18.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a81704feeb3e8599913bdd1e738455c2991a01ff4a1780cb62200993e454cc3e"
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checksum = "e3517a65d3c2e6f8905b456eba5d53bda158d664863aef960b44f651cb7d33e2"
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dependencies = [
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"glib-sys",
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"gobject-sys",
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[[package]]
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name = "heck"
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version = "0.3.3"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6d621efb26863f0e9924c6ac577e8275e5e6b77455db64ffa6c65c904e9e132c"
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dependencies = [
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"unicode-segmentation",
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]
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checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
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[[package]]
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name = "hermit-abi"
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"cfg-if",
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]
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[[package]]
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name = "itertools"
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version = "0.10.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a9a9d19fa1e79b6215ff29b9d6880b706147f16e9b1dbb1e4e5947b5b02bc5e3"
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dependencies = [
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"either",
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]
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[[package]]
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name = "itoa"
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version = "0.4.8"
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"glib",
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"gstreamer",
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"gstreamer-app",
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"gstreamer-audio",
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"jack 0.8.4",
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"libpulse-binding",
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"libpulse-simple-binding",
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
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[[package]]
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name = "option-operations"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "95d6113415f41b268f1195907427519769e40ee6f28cbb053795098a2c16f447"
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dependencies = [
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"paste",
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]
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[[package]]
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name = "parking_lot"
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version = "0.11.2"
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dependencies = [
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"cfg-if",
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"libc",
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"version-compare 0.1.0",
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"version-compare",
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]
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[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
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[[package]]
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name = "strum"
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version = "0.21.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "aaf86bbcfd1fa9670b7a129f64fc0c9fcbbfe4f1bc4210e9e98fe71ffc12cde2"
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[[package]]
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name = "strum_macros"
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version = "0.21.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d06aaeeee809dbc59eb4556183dd927df67db1540de5be8d3ec0b6636358a5ec"
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dependencies = [
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"heck",
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "subtle"
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version = "2.4.1"
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[[package]]
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name = "system-deps"
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version = "3.2.0"
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version = "6.0.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "480c269f870722b3b08d2f13053ce0c2ab722839f472863c3e2d61ff3a1c2fa6"
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checksum = "ad3a97fdef3daf935d929b3e97e5a6a680cd4622e40c2941ca0875d6566416f8"
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dependencies = [
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"anyhow",
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"cfg-expr",
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"heck",
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"itertools",
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"pkg-config",
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"strum",
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"strum_macros",
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"thiserror",
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"toml",
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"version-compare 0.0.11",
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"version-compare",
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]
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[[package]]
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"tinyvec",
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]
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[[package]]
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name = "unicode-segmentation"
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version = "1.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8895849a949e7845e06bd6dc1aa51731a103c42707010a5b591c0038fb73385b"
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[[package]]
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name = "unicode-width"
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version = "0.1.9"
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"thiserror",
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]
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[[package]]
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name = "version-compare"
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version = "0.0.11"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1c18c859eead79d8b95d09e4678566e8d70105c4e7b251f707a03df32442661b"
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[[package]]
|
||||
name = "version-compare"
|
||||
version = "0.1.0"
|
||||
|
|
|
|||
|
|
@ -34,9 +34,10 @@ libpulse-binding = { version = "2", optional = true, default-features = f
|
|||
libpulse-simple-binding = { version = "2", optional = true, default-features = false }
|
||||
jack = { version = "0.8", optional = true }
|
||||
sdl2 = { version = "0.35", optional = true }
|
||||
gstreamer = { version = "0.17", optional = true }
|
||||
gstreamer-app = { version = "0.17", optional = true }
|
||||
glib = { version = "0.14", optional = true }
|
||||
gst = { package = "gstreamer", version = "0.18", optional = true }
|
||||
gst-app = { package = "gstreamer-app", version = "0.18", optional = true }
|
||||
gst-audio = { package = "gstreamer-audio", version = "0.18", optional = true }
|
||||
glib = { version = "0.15", optional = true }
|
||||
|
||||
# Rodio dependencies
|
||||
rodio = { version = "0.15", optional = true, default-features = false }
|
||||
|
|
@ -60,6 +61,6 @@ jackaudio-backend = ["jack"]
|
|||
rodio-backend = ["rodio", "cpal"]
|
||||
rodiojack-backend = ["rodio", "cpal/jack"]
|
||||
sdl-backend = ["sdl2"]
|
||||
gstreamer-backend = ["gstreamer", "gstreamer-app", "glib"]
|
||||
gstreamer-backend = ["gst", "gst-app", "gst-audio", "glib"]
|
||||
|
||||
passthrough-decoder = ["ogg"]
|
||||
|
|
|
|||
|
|
@ -1,14 +1,11 @@
|
|||
use std::{ops::Drop, thread};
|
||||
|
||||
use gstreamer as gst;
|
||||
use gstreamer_app as gst_app;
|
||||
|
||||
use gst::{
|
||||
event::{FlushStart, FlushStop},
|
||||
prelude::*,
|
||||
State,
|
||||
};
|
||||
use zerocopy::AsBytes;
|
||||
|
||||
use parking_lot::Mutex;
|
||||
use std::sync::Arc;
|
||||
|
||||
use super::{Open, Sink, SinkAsBytes, SinkError, SinkResult};
|
||||
|
||||
|
|
@ -16,12 +13,12 @@ use crate::{
|
|||
config::AudioFormat, convert::Converter, decoder::AudioPacket, NUM_CHANNELS, SAMPLE_RATE,
|
||||
};
|
||||
|
||||
#[allow(dead_code)]
|
||||
pub struct GstreamerSink {
|
||||
appsrc: gst_app::AppSrc,
|
||||
bufferpool: gst::BufferPool,
|
||||
pipeline: gst::Pipeline,
|
||||
format: AudioFormat,
|
||||
async_error: Arc<Mutex<Option<String>>>,
|
||||
}
|
||||
|
||||
impl Open for GstreamerSink {
|
||||
|
|
@ -29,80 +26,95 @@ impl Open for GstreamerSink {
|
|||
info!("Using GStreamer sink with format: {:?}", format);
|
||||
gst::init().expect("failed to init GStreamer!");
|
||||
|
||||
// GStreamer calls S24 and S24_3 different from the rest of the world
|
||||
let gst_format = match format {
|
||||
AudioFormat::S24 => "S24_32".to_string(),
|
||||
AudioFormat::S24_3 => "S24".to_string(),
|
||||
_ => format!("{:?}", format),
|
||||
AudioFormat::F64 => gst_audio::AUDIO_FORMAT_F64,
|
||||
AudioFormat::F32 => gst_audio::AUDIO_FORMAT_F32,
|
||||
AudioFormat::S32 => gst_audio::AUDIO_FORMAT_S32,
|
||||
AudioFormat::S24 => gst_audio::AUDIO_FORMAT_S2432,
|
||||
AudioFormat::S24_3 => gst_audio::AUDIO_FORMAT_S24,
|
||||
AudioFormat::S16 => gst_audio::AUDIO_FORMAT_S16,
|
||||
};
|
||||
|
||||
let gst_info = gst_audio::AudioInfo::builder(gst_format, SAMPLE_RATE, NUM_CHANNELS as u32)
|
||||
.build()
|
||||
.expect("Failed to create GStreamer audio format");
|
||||
let gst_caps = gst_info.to_caps().expect("Failed to create GStreamer caps");
|
||||
|
||||
let sample_size = format.size();
|
||||
let gst_bytes = NUM_CHANNELS as usize * 1024 * sample_size;
|
||||
|
||||
#[cfg(target_endian = "little")]
|
||||
const ENDIANNESS: &str = "LE";
|
||||
#[cfg(target_endian = "big")]
|
||||
const ENDIANNESS: &str = "BE";
|
||||
|
||||
let pipeline_str_preamble = format!(
|
||||
"appsrc caps=\"audio/x-raw,format={}{},layout=interleaved,channels={},rate={}\" block=true max-bytes={} name=appsrc0 ",
|
||||
gst_format, ENDIANNESS, NUM_CHANNELS, SAMPLE_RATE, gst_bytes
|
||||
);
|
||||
// no need to dither twice; use librespot dithering instead
|
||||
let pipeline_str_rest = r#" ! audioconvert dithering=none ! autoaudiosink"#;
|
||||
let pipeline_str: String = match device {
|
||||
Some(x) => format!("{}{}", pipeline_str_preamble, x),
|
||||
None => format!("{}{}", pipeline_str_preamble, pipeline_str_rest),
|
||||
};
|
||||
info!("Pipeline: {}", pipeline_str);
|
||||
|
||||
gst::init().unwrap();
|
||||
let pipelinee = gst::parse_launch(&*pipeline_str).expect("Couldn't launch pipeline; likely a GStreamer issue or an error in the pipeline string you specified in the 'device' argument to librespot.");
|
||||
let pipeline = pipelinee
|
||||
.dynamic_cast::<gst::Pipeline>()
|
||||
.expect("couldn't cast pipeline element at runtime!");
|
||||
let bus = pipeline.bus().expect("couldn't get bus from pipeline");
|
||||
let mainloop = glib::MainLoop::new(None, false);
|
||||
let appsrce: gst::Element = pipeline
|
||||
.by_name("appsrc0")
|
||||
.expect("couldn't get appsrc from pipeline");
|
||||
let appsrc: gst_app::AppSrc = appsrce
|
||||
.dynamic_cast::<gst_app::AppSrc>()
|
||||
let pipeline = gst::Pipeline::new(None);
|
||||
let appsrc = gst::ElementFactory::make("appsrc", None)
|
||||
.expect("Failed to create GStreamer appsrc element")
|
||||
.downcast::<gst_app::AppSrc>()
|
||||
.expect("couldn't cast AppSrc element at runtime!");
|
||||
let appsrc_caps = appsrc.caps().expect("couldn't get appsrc caps");
|
||||
appsrc.set_caps(Some(&gst_caps));
|
||||
appsrc.set_max_bytes(gst_bytes as u64);
|
||||
appsrc.set_block(true);
|
||||
|
||||
let sink = match device {
|
||||
None => {
|
||||
// no need to dither twice; use librespot dithering instead
|
||||
gst::parse_bin_from_description(
|
||||
"audioconvert dithering=none ! audioresample ! autoaudiosink",
|
||||
true,
|
||||
)
|
||||
.expect("Failed to create default GStreamer sink")
|
||||
}
|
||||
Some(ref x) => gst::parse_bin_from_description(x, true)
|
||||
.expect("Failed to create custom GStreamer sink"),
|
||||
};
|
||||
pipeline
|
||||
.add(&appsrc)
|
||||
.expect("Failed to add GStreamer appsrc to pipeline");
|
||||
pipeline
|
||||
.add(&sink)
|
||||
.expect("Failed to add GStreamer sink to pipeline");
|
||||
appsrc
|
||||
.link(&sink)
|
||||
.expect("Failed to link GStreamer source to sink");
|
||||
|
||||
let bus = pipeline.bus().expect("couldn't get bus from pipeline");
|
||||
|
||||
let bufferpool = gst::BufferPool::new();
|
||||
|
||||
let mut conf = bufferpool.config();
|
||||
conf.set_params(Some(&appsrc_caps), gst_bytes as u32, 0, 0);
|
||||
conf.set_params(Some(&gst_caps), gst_bytes as u32, 0, 0);
|
||||
bufferpool
|
||||
.set_config(conf)
|
||||
.expect("couldn't configure the buffer pool");
|
||||
|
||||
thread::spawn(move || {
|
||||
let thread_mainloop = mainloop;
|
||||
let watch_mainloop = thread_mainloop.clone();
|
||||
bus.add_watch(move |_, msg| {
|
||||
match msg.view() {
|
||||
gst::MessageView::Eos(_) => {
|
||||
println!("gst signaled end of stream");
|
||||
watch_mainloop.quit();
|
||||
}
|
||||
gst::MessageView::Error(err) => {
|
||||
println!(
|
||||
"Error from {:?}: {} ({:?})",
|
||||
err.src().map(|s| s.path_string()),
|
||||
err.error(),
|
||||
err.debug()
|
||||
);
|
||||
watch_mainloop.quit();
|
||||
}
|
||||
_ => (),
|
||||
};
|
||||
let async_error = Arc::new(Mutex::new(None));
|
||||
let async_error_clone = async_error.clone();
|
||||
|
||||
glib::Continue(true)
|
||||
})
|
||||
.expect("failed to add bus watch");
|
||||
thread_mainloop.run();
|
||||
bus.set_sync_handler(move |_bus, msg| {
|
||||
match msg.view() {
|
||||
gst::MessageView::Eos(_) => {
|
||||
println!("gst signaled end of stream");
|
||||
|
||||
let mut async_error_storage = async_error_clone.lock();
|
||||
*async_error_storage = Some(String::from("gst signaled end of stream"));
|
||||
}
|
||||
gst::MessageView::Error(err) => {
|
||||
println!(
|
||||
"Error from {:?}: {} ({:?})",
|
||||
err.src().map(|s| s.path_string()),
|
||||
err.error(),
|
||||
err.debug()
|
||||
);
|
||||
|
||||
let mut async_error_storage = async_error_clone.lock();
|
||||
*async_error_storage = Some(format!(
|
||||
"Error from {:?}: {} ({:?})",
|
||||
err.src().map(|s| s.path_string()),
|
||||
err.error(),
|
||||
err.debug()
|
||||
));
|
||||
}
|
||||
_ => (),
|
||||
}
|
||||
|
||||
gst::BusSyncReply::Drop
|
||||
});
|
||||
|
||||
pipeline
|
||||
|
|
@ -114,16 +126,18 @@ impl Open for GstreamerSink {
|
|||
bufferpool,
|
||||
pipeline,
|
||||
format,
|
||||
async_error,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Sink for GstreamerSink {
|
||||
fn start(&mut self) -> SinkResult<()> {
|
||||
*self.async_error.lock() = None;
|
||||
self.appsrc.send_event(FlushStop::new(true));
|
||||
self.bufferpool
|
||||
.set_active(true)
|
||||
.expect("couldn't activate buffer pool");
|
||||
.map_err(|e| SinkError::StateChange(e.to_string()))?;
|
||||
self.pipeline
|
||||
.set_state(State::Playing)
|
||||
.map_err(|e| SinkError::StateChange(e.to_string()))?;
|
||||
|
|
@ -131,13 +145,14 @@ impl Sink for GstreamerSink {
|
|||
}
|
||||
|
||||
fn stop(&mut self) -> SinkResult<()> {
|
||||
*self.async_error.lock() = None;
|
||||
self.appsrc.send_event(FlushStart::new());
|
||||
self.pipeline
|
||||
.set_state(State::Paused)
|
||||
.map_err(|e| SinkError::StateChange(e.to_string()))?;
|
||||
self.bufferpool
|
||||
.set_active(false)
|
||||
.expect("couldn't deactivate buffer pool");
|
||||
.map_err(|e| SinkError::StateChange(e.to_string()))?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
|
|
@ -146,15 +161,16 @@ impl Sink for GstreamerSink {
|
|||
|
||||
impl Drop for GstreamerSink {
|
||||
fn drop(&mut self) {
|
||||
// Follow the state transitions documented at:
|
||||
// https://gstreamer.freedesktop.org/documentation/additional/design/states.html?gi-language=c
|
||||
let _ = self.pipeline.set_state(State::Ready);
|
||||
let _ = self.pipeline.set_state(State::Null);
|
||||
}
|
||||
}
|
||||
|
||||
impl SinkAsBytes for GstreamerSink {
|
||||
fn write_bytes(&mut self, data: &[u8]) -> SinkResult<()> {
|
||||
if let Some(async_error) = &*self.async_error.lock() {
|
||||
return Err(SinkError::OnWrite(async_error.to_string()));
|
||||
}
|
||||
|
||||
let mut buffer = self
|
||||
.bufferpool
|
||||
.acquire_buffer(None)
|
||||
|
|
@ -163,8 +179,8 @@ impl SinkAsBytes for GstreamerSink {
|
|||
let mutbuf = buffer.make_mut();
|
||||
mutbuf.set_size(data.len());
|
||||
mutbuf
|
||||
.copy_from_slice(0, data.as_bytes())
|
||||
.expect("Failed to copy from slice");
|
||||
.copy_from_slice(0, data)
|
||||
.map_err(|e| SinkError::OnWrite(e.to_string()))?;
|
||||
|
||||
self.appsrc
|
||||
.push_buffer(buffer)
|
||||
|
|
|
|||
Loading…
Reference in a new issue