Fixed blocking calls
This commit is contained in:
parent
68b920d2f0
commit
d2bb513336
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@ -4,11 +4,35 @@ version = "0.1.0"
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dependencies = [
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dependencies = [
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"gstreamer 0.7.2 (git+https://github.com/arturoc/gstreamer1.0-rs.git)",
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"gstreamer 0.7.2 (git+https://github.com/arturoc/gstreamer1.0-rs.git)",
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"itertools 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"itertools 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"sdl2 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"toml 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
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"toml 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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]
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[[package]]
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name = "bitflags"
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version = "0.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "c_vec"
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version = "1.0.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "conv"
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version = "0.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"custom_derive 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "custom_derive"
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version = "0.1.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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[[package]]
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name = "either"
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name = "either"
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version = "1.1.0"
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version = "1.1.0"
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@ -27,11 +51,101 @@ dependencies = [
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"either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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]
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[[package]]
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name = "lazy_static"
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version = "0.2.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "libc"
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version = "0.2.30"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "magenta"
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version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"conv 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"magenta-sys 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "magenta-sys"
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version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "num"
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version = "0.1.40"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"num-integer 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
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"num-iter 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)",
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"num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "num-integer"
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version = "0.1.35"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "num-iter"
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version = "0.1.34"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"num-integer 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
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"num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "num-traits"
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version = "0.1.40"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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[[package]]
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name = "quote"
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name = "quote"
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version = "0.3.15"
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version = "0.3.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "rand"
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version = "0.3.16"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
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"magenta 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "sdl2"
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version = "0.30.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"c_vec 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
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"num 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
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"sdl2-sys 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "sdl2-sys"
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version = "0.30.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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[[package]]
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name = "serde"
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name = "serde"
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version = "1.0.12"
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version = "1.0.12"
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@ -88,10 +202,25 @@ version = "0.0.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[metadata]
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[metadata]
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"checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
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"checksum c_vec 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)" = "aa9e1d9f7d49e289f36f19effbf3d5a5e30163ecf9c7a3c9be94d5374dec5b9a"
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"checksum conv 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "78ff10625fd0ac447827aa30ea8b861fead473bb60aeb73af6c1c58caf0d1299"
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"checksum custom_derive 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "ef8ae57c4978a2acd8b869ce6b9ca1dfe817bff704c220209fdef2c0b75a01b9"
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"checksum either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "18785c1ba806c258137c937e44ada9ee7e69a37e3c72077542cd2f069d78562a"
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"checksum either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "18785c1ba806c258137c937e44ada9ee7e69a37e3c72077542cd2f069d78562a"
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"checksum gstreamer 0.7.2 (git+https://github.com/arturoc/gstreamer1.0-rs.git)" = "<none>"
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"checksum gstreamer 0.7.2 (git+https://github.com/arturoc/gstreamer1.0-rs.git)" = "<none>"
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"checksum itertools 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "22c285d60139cf413244894189ca52debcfd70b57966feed060da76802e415a0"
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"checksum itertools 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "22c285d60139cf413244894189ca52debcfd70b57966feed060da76802e415a0"
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"checksum lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3b37545ab726dd833ec6420aaba8231c5b320814b9029ad585555d2a03e94fbf"
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"checksum libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)" = "2370ca07ec338939e356443dac2296f581453c35fe1e3a3ed06023c49435f915"
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"checksum magenta 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4bf0336886480e671965f794bc9b6fce88503563013d1bfb7a502c81fe3ac527"
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"checksum magenta-sys 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "40d014c7011ac470ae28e2f76a02bfea4a8480f73e701353b49ad7a8d75f4699"
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"checksum num 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)" = "a311b77ebdc5dd4cf6449d81e4135d9f0e3b153839ac90e648a8ef538f923525"
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"checksum num-integer 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)" = "d1452e8b06e448a07f0e6ebb0bb1d92b8890eea63288c0b627331d53514d0fba"
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"checksum num-iter 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)" = "7485fcc84f85b4ecd0ea527b14189281cf27d60e583ae65ebc9c088b13dffe01"
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"checksum num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)" = "99843c856d68d8b4313b03a17e33c4bb42ae8f6610ea81b28abe076ac721b9b0"
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"checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
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"checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
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"checksum rand 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)" = "eb250fd207a4729c976794d03db689c9be1d634ab5a1c9da9492a13d8fecbcdf"
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"checksum sdl2 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)" = "63066036ad426250ac56d23e38fd05063b38b661556acd596f4046cc92d98415"
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"checksum sdl2-sys 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b48638b7882759f3421038fcd38ad5f1ea19b119d80c99f1601933004629e34d"
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"checksum serde 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)" = "7f61b753dd58ec5d4c735f794dbddde1f28b977f652afbcde89d75bc77902216"
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"checksum serde 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)" = "7f61b753dd58ec5d4c735f794dbddde1f28b977f652afbcde89d75bc77902216"
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"checksum serde_derive 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)" = "2a169fa5384d751ada1da9f3992b81830151a03c875e40dcb37c9fb31aafc68f"
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"checksum serde_derive 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)" = "2a169fa5384d751ada1da9f3992b81830151a03c875e40dcb37c9fb31aafc68f"
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"checksum serde_derive_internals 0.15.1 (registry+https://github.com/rust-lang/crates.io-index)" = "37aee4e0da52d801acfbc0cc219eb1eda7142112339726e427926a6f6ee65d3a"
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"checksum serde_derive_internals 0.15.1 (registry+https://github.com/rust-lang/crates.io-index)" = "37aee4e0da52d801acfbc0cc219eb1eda7142112339726e427926a6f6ee65d3a"
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@ -9,3 +9,8 @@ serde = "*"
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serde_derive = "*"
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serde_derive = "*"
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toml = "*"
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toml = "*"
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gstreamer = { git = "https://github.com/arturoc/gstreamer1.0-rs.git" }
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gstreamer = { git = "https://github.com/arturoc/gstreamer1.0-rs.git" }
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[dependencies.sdl2]
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version = "*"
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default-features = false
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features = ["ttf","image","gfx"]
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@ -1,5 +1,5 @@
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[audio]
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[audio]
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alsa_device = "hw:1,0"
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alsa_device = "hw:2,0"
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rate = 96000
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rate = 96000
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[output]
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[output]
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48
src/main.rs
48
src/main.rs
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@ -1,4 +1,6 @@
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extern crate sdl2;
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extern crate toml;
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extern crate toml;
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#[macro_use]
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#[macro_use]
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extern crate serde_derive;
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extern crate serde_derive;
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extern crate gst;
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extern crate gst;
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@ -6,9 +8,12 @@ extern crate itertools;
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use std::fs::File;
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use std::fs::File;
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use std::io::prelude::*;
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use std::io::prelude::*;
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use std::sync::mpsc;
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use itertools::Itertools;
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use itertools::Itertools;
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use sdl2::event::Event;
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use sdl2::pixels;
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#[derive(Debug, Deserialize)]
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#[derive(Debug, Deserialize)]
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@ -30,7 +35,6 @@ struct OutputConfig {
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}
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}
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fn read_config(path: &str) -> Config {
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fn read_config(path: &str) -> Config {
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let mut config_toml = String::new();
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let mut config_toml = String::new();
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@ -51,8 +55,8 @@ fn read_config(path: &str) -> Config {
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}
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}
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fn handle_pipeline_events(bus : &mut gst::bus::Bus) -> bool {
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fn handle_pipeline_events(bus_receiver : &mpsc::Receiver<gst::Message>) -> bool {
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let bus_receiver = bus.receiver();
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while let Ok(msg) = bus_receiver.try_recv() {
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while let Ok(msg) = bus_receiver.try_recv() {
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match msg.parse() {
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match msg.parse() {
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gst::Message::StateChangedParsed { ref old, ref new, .. } => {
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gst::Message::StateChangedParsed { ref old, ref new, .. } => {
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@ -74,8 +78,9 @@ fn handle_pipeline_events(bus : &mut gst::bus::Bus) -> bool {
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}
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}
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fn get_max_samples(appsink : &gst::appsink::AppSink) -> Result<(f32, f32), &str>{
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fn get_max_samples(appsink : &gst::appsink::AppSink) -> Result<(f32, f32), &str>{
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match appsink.recv(){
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match appsink.try_recv() {
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Ok(gst::appsink::Message::NewSample(sample)) | Ok(gst::appsink::Message::NewPreroll(sample)) => {
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Ok(gst::appsink::Message::NewSample(sample))
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| Ok(gst::appsink::Message::NewPreroll(sample)) => {
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if let Some(buffer) = sample.buffer() {
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if let Some(buffer) = sample.buffer() {
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let (max0, max1) = buffer.map_read(|mapping| {
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let (max0, max1) = buffer.map_read(|mapping| {
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mapping.iter::<f32>().tuples().fold((0.0f32, 0.0f32), |(acc0, acc1), (sample0, sample1)| {
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mapping.iter::<f32>().tuples().fold((0.0f32, 0.0f32), |(acc0, acc1), (sample0, sample1)| {
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@ -89,12 +94,17 @@ fn get_max_samples(appsink : &gst::appsink::AppSink) -> Result<(f32, f32), &str>
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Ok(gst::appsink::Message::Eos) => {
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Ok(gst::appsink::Message::Eos) => {
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return Err("Got no sample when polling. EOS");
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return Err("Got no sample when polling. EOS");
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}
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}
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Err(_) => {
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Err(mpsc::TryRecvError::Empty) => {
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return Err("Error, exiting");
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return Ok((0.0f32,0.0f32));
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}
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Err(mpsc::TryRecvError::Disconnected) => {
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return Err("Appsink got disconnected")
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}
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}
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}
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}
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}
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}
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|
||||||
|
const SCREEN_WIDTH: u32 = 160;
|
||||||
|
const SCREEN_HEIGHT: u32 = 128;
|
||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
gst::init();
|
gst::init();
|
||||||
|
@ -108,24 +118,39 @@ fn main() {
|
||||||
config.output.directory,
|
config.output.directory,
|
||||||
config.output.prefix);
|
config.output.prefix);
|
||||||
|
|
||||||
|
println!("{}", pipeline_str);
|
||||||
|
|
||||||
let mut pipeline = gst::Pipeline::new_from_str(&pipeline_str).unwrap();
|
let mut pipeline = gst::Pipeline::new_from_str(&pipeline_str).unwrap();
|
||||||
let mut mainloop = gst::MainLoop::new();
|
let mut mainloop = gst::MainLoop::new();
|
||||||
let mut bus = pipeline.bus().expect("Couldn't get bus from pipeline");
|
let mut bus = pipeline.bus().expect("Couldn't get bus from pipeline");
|
||||||
|
let bus_receiver = bus.receiver();
|
||||||
let appsink = pipeline
|
let appsink = pipeline
|
||||||
.get_by_name("appsink0")
|
.get_by_name("appsink0")
|
||||||
.expect("Couldn't get appsink from pipeline");
|
.expect("Couldn't get appsink from pipeline");
|
||||||
let appsink = gst::AppSink::new_from_element(appsink);
|
let appsink = gst::AppSink::new_from_element(appsink);
|
||||||
|
|
||||||
|
/*
|
||||||
|
let sdl_context = sdl2::init().unwrap();
|
||||||
|
let video_subsys = sdl_context.video().unwrap();
|
||||||
|
let window = video_subsys.window("rascam", SCREEN_WIDTH, SCREEN_HEIGHT)
|
||||||
|
.position_centered()
|
||||||
|
.build()
|
||||||
|
.unwrap();
|
||||||
|
|
||||||
|
let mut canvas = window.into_canvas().build().unwrap();
|
||||||
|
|
||||||
|
canvas.set_draw_color(pixels::Color::RGB(255, 255, 0));
|
||||||
|
canvas.clear();
|
||||||
|
canvas.present();
|
||||||
|
*/
|
||||||
|
|
||||||
mainloop.spawn();
|
mainloop.spawn();
|
||||||
pipeline.play();
|
pipeline.play();
|
||||||
|
|
||||||
|
|
||||||
loop {
|
loop {
|
||||||
|
if handle_pipeline_events(&bus_receiver) {
|
||||||
if handle_pipeline_events(&mut bus) {
|
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
||||||
let result = get_max_samples(& appsink);
|
let result = get_max_samples(& appsink);
|
||||||
match result {
|
match result {
|
||||||
Ok((max0, max1)) => {
|
Ok((max0, max1)) => {
|
||||||
|
@ -136,7 +161,6 @@ fn main() {
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue