gstreamer-rs/gstreamer-audio-sys/tests/abi.rs

// This file was generated by gir (https://github.com/gtk-rs/gir @ 6855214)
// from gir-files (https://github.com/gtk-rs/gir-files @ ???)
// DO NOT EDIT

extern crate gstreamer_audio_sys;
extern crate shell_words;
extern crate tempdir;
use std::env;
use std::error::Error;
use std::path::Path;
use std::mem::{align_of, size_of};
use std::process::Command;
use std::str;
use gstreamer_audio_sys::*;

static PACKAGES: &[&str] = &["gstreamer-audio-1.0"];

#[derive(Clone, Debug)]
struct Compiler {
    pub args: Vec<String>,
}

impl Compiler {
    pub fn new() -> Result<Compiler, Box<Error>> {
        let mut args = get_var("CC", "cc")?;
        args.push("-Wno-deprecated-declarations".to_owned());
        // For %z support in printf when using MinGW.
        args.push("-D__USE_MINGW_ANSI_STDIO".to_owned());
        args.extend(get_var("CFLAGS", "")?);
        args.extend(get_var("CPPFLAGS", "")?);
        args.extend(pkg_config_cflags(PACKAGES)?);
        Ok(Compiler { args })
    }

    pub fn define<'a, V: Into<Option<&'a str>>>(&mut self, var: &str, val: V) {
        let arg = match val.into() {
            None => format!("-D{}", var), 
            Some(val) => format!("-D{}={}", var, val),
        };
        self.args.push(arg);
    }

    pub fn compile(&self, src: &Path, out: &Path) -> Result<(), Box<Error>> {
        let mut cmd = self.to_command();
        cmd.arg(src);
        cmd.arg("-o");
        cmd.arg(out);
        let status = cmd.spawn()?.wait()?;
        if !status.success() {
            return Err(format!("compilation command {:?} failed, {}",
                               &cmd, status).into());
        }
        Ok(())
    }

    fn to_command(&self) -> Command {
        let mut cmd = Command::new(&self.args[0]);
        cmd.args(&self.args[1..]);
        cmd
    }
}

fn get_var(name: &str, default: &str) -> Result<Vec<String>, Box<Error>> {
    match env::var(name) {
        Ok(value) => Ok(shell_words::split(&value)?),
        Err(env::VarError::NotPresent) => Ok(shell_words::split(default)?),
        Err(err) => Err(format!("{} {}", name, err).into()),
    }
}

fn pkg_config_cflags(packages: &[&str]) -> Result<Vec<String>, Box<Error>> {
    if packages.is_empty() {
        return Ok(Vec::new());
    }
    let mut cmd = Command::new("pkg-config");
    cmd.arg("--cflags");
    cmd.args(packages);
    let out = cmd.output()?;
    if !out.status.success() {
        return Err(format!("command {:?} returned {}", 
                           &cmd, out.status).into());
    }
    let stdout = str::from_utf8(&out.stdout)?;
    Ok(shell_words::split(stdout.trim())?)
}


#[derive(Copy, Clone, Debug, Eq, PartialEq)]
struct Layout {
    size: usize,
    alignment: usize,
}

#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
struct Results {
    /// Number of successfully completed tests.
    passed: usize,
    /// Total number of failed tests (including those that failed to compile).
    failed: usize,
    /// Number of tests that failed to compile.
    failed_to_compile: usize,
}

impl Results {
    fn record_passed(&mut self) {
        self.passed += 1;
    }
    fn record_failed(&mut self) {
        self.failed += 1;
    }
    fn record_failed_to_compile(&mut self) {
        self.failed += 1;
        self.failed_to_compile += 1;
    }
    fn summary(&self) -> String {
        format!(
            "{} passed; {} failed (compilation errors: {})",
            self.passed,
            self.failed,
            self.failed_to_compile)
    }
    fn expect_total_success(&self) {
        if self.failed == 0 {
            println!("OK: {}", self.summary());
        } else {
            panic!("FAILED: {}", self.summary());
        };
    }
}

#[test]
fn cross_validate_constants_with_c() {
    let tmpdir = tempdir::TempDir::new("abi").expect("temporary directory");
    let cc = Compiler::new().expect("configured compiler");

    assert_eq!("1",
               get_c_value(tmpdir.path(), &cc, "1").expect("C constant"),
               "failed to obtain correct constant value for 1");

    let mut results : Results = Default::default();
    for (i, &(name, rust_value)) in RUST_CONSTANTS.iter().enumerate() {
        match get_c_value(tmpdir.path(), &cc, name) {
            Err(e) => {
                results.record_failed_to_compile();
                eprintln!("{}", e);
            },
            Ok(ref c_value) => {
                if rust_value == c_value {
                    results.record_passed();
                } else {
                    results.record_failed();
                    eprintln!("Constant value mismatch for {}\nRust: {:?}\nC:    {:?}",
                              name, rust_value, c_value);
                }
            }
        };
        if (i + 1) % 25 == 0 {
            println!("constants ... {}", results.summary());
        }
    }
    results.expect_total_success();
}

#[test]
fn cross_validate_layout_with_c() {
    let tmpdir = tempdir::TempDir::new("abi").expect("temporary directory");
    let cc = Compiler::new().expect("configured compiler");

    assert_eq!(Layout {size: 1, alignment: 1},
               get_c_layout(tmpdir.path(), &cc, "char").expect("C layout"),
               "failed to obtain correct layout for char type");

    let mut results : Results = Default::default();
    for (i, &(name, rust_layout)) in RUST_LAYOUTS.iter().enumerate() {
        match get_c_layout(tmpdir.path(), &cc, name) {
            Err(e) => {
                results.record_failed_to_compile();
                eprintln!("{}", e);
            },
            Ok(c_layout) => {
                if rust_layout == c_layout {
                    results.record_passed();
                } else {
                    results.record_failed();
                    eprintln!("Layout mismatch for {}\nRust: {:?}\nC:    {:?}",
                              name, rust_layout, &c_layout);
                }
            }
        };
        if (i + 1) % 25 == 0 {
            println!("layout    ... {}", results.summary());
        }
    }
    results.expect_total_success();
}

fn get_c_layout(dir: &Path, cc: &Compiler, name: &str) -> Result<Layout, Box<Error>> {
    let exe = dir.join("layout");
    let mut cc = cc.clone();
    cc.define("ABI_TYPE_NAME", name);
    cc.compile(Path::new("tests/layout.c"), &exe)?;

    let mut abi_cmd = Command::new(exe);
    let output = abi_cmd.output()?;
    if !output.status.success() {
        return Err(format!("command {:?} failed, {:?}",
                           &abi_cmd, &output).into());
    }

    let stdout = str::from_utf8(&output.stdout)?;
    let mut words = stdout.trim().split_whitespace();
    let size = words.next().unwrap().parse().unwrap();
    let alignment = words.next().unwrap().parse().unwrap();
    Ok(Layout {size, alignment})
}

fn get_c_value(dir: &Path, cc: &Compiler, name: &str) -> Result<String, Box<Error>> {
    let exe = dir.join("constant");
    let mut cc = cc.clone();
    cc.define("ABI_CONSTANT_NAME", name);
    cc.compile(Path::new("tests/constant.c"), &exe)?;

    let mut abi_cmd = Command::new(exe);
    let output = abi_cmd.output()?;
    if !output.status.success() {
        return Err(format!("command {:?} failed, {:?}",
                           &abi_cmd, &output).into());
    }

    Ok(str::from_utf8(&output.stdout)?.trim().to_owned())
}

const RUST_LAYOUTS: &[(&str, Layout)] = &[
    ("GstAudioAggregator", Layout {size: size_of::<GstAudioAggregator>(), alignment: align_of::<GstAudioAggregator>()}),
    ("GstAudioAggregatorClass", Layout {size: size_of::<GstAudioAggregatorClass>(), alignment: align_of::<GstAudioAggregatorClass>()}),
    ("GstAudioAggregatorConvertPad", Layout {size: size_of::<GstAudioAggregatorConvertPad>(), alignment: align_of::<GstAudioAggregatorConvertPad>()}),
    ("GstAudioAggregatorConvertPadClass", Layout {size: size_of::<GstAudioAggregatorConvertPadClass>(), alignment: align_of::<GstAudioAggregatorConvertPadClass>()}),
    ("GstAudioAggregatorPad", Layout {size: size_of::<GstAudioAggregatorPad>(), alignment: align_of::<GstAudioAggregatorPad>()}),
    ("GstAudioAggregatorPadClass", Layout {size: size_of::<GstAudioAggregatorPadClass>(), alignment: align_of::<GstAudioAggregatorPadClass>()}),
    ("GstAudioBaseSink", Layout {size: size_of::<GstAudioBaseSink>(), alignment: align_of::<GstAudioBaseSink>()}),
    ("GstAudioBaseSinkClass", Layout {size: size_of::<GstAudioBaseSinkClass>(), alignment: align_of::<GstAudioBaseSinkClass>()}),
    ("GstAudioBaseSinkDiscontReason", Layout {size: size_of::<GstAudioBaseSinkDiscontReason>(), alignment: align_of::<GstAudioBaseSinkDiscontReason>()}),
    ("GstAudioBaseSinkSlaveMethod", Layout {size: size_of::<GstAudioBaseSinkSlaveMethod>(), alignment: align_of::<GstAudioBaseSinkSlaveMethod>()}),
    ("GstAudioBaseSrc", Layout {size: size_of::<GstAudioBaseSrc>(), alignment: align_of::<GstAudioBaseSrc>()}),
    ("GstAudioBaseSrcClass", Layout {size: size_of::<GstAudioBaseSrcClass>(), alignment: align_of::<GstAudioBaseSrcClass>()}),
    ("GstAudioBaseSrcSlaveMethod", Layout {size: size_of::<GstAudioBaseSrcSlaveMethod>(), alignment: align_of::<GstAudioBaseSrcSlaveMethod>()}),
    ("GstAudioCdSrc", Layout {size: size_of::<GstAudioCdSrc>(), alignment: align_of::<GstAudioCdSrc>()}),
    ("GstAudioCdSrcClass", Layout {size: size_of::<GstAudioCdSrcClass>(), alignment: align_of::<GstAudioCdSrcClass>()}),
    ("GstAudioCdSrcMode", Layout {size: size_of::<GstAudioCdSrcMode>(), alignment: align_of::<GstAudioCdSrcMode>()}),
    ("GstAudioCdSrcTrack", Layout {size: size_of::<GstAudioCdSrcTrack>(), alignment: align_of::<GstAudioCdSrcTrack>()}),
    ("GstAudioChannelMixerFlags", Layout {size: size_of::<GstAudioChannelMixerFlags>(), alignment: align_of::<GstAudioChannelMixerFlags>()}),
    ("GstAudioChannelPosition", Layout {size: size_of::<GstAudioChannelPosition>(), alignment: align_of::<GstAudioChannelPosition>()}),
    ("GstAudioClippingMeta", Layout {size: size_of::<GstAudioClippingMeta>(), alignment: align_of::<GstAudioClippingMeta>()}),
    ("GstAudioClock", Layout {size: size_of::<GstAudioClock>(), alignment: align_of::<GstAudioClock>()}),
    ("GstAudioClockClass", Layout {size: size_of::<GstAudioClockClass>(), alignment: align_of::<GstAudioClockClass>()}),
    ("GstAudioConverterFlags", Layout {size: size_of::<GstAudioConverterFlags>(), alignment: align_of::<GstAudioConverterFlags>()}),
    ("GstAudioDecoder", Layout {size: size_of::<GstAudioDecoder>(), alignment: align_of::<GstAudioDecoder>()}),
    ("GstAudioDecoderClass", Layout {size: size_of::<GstAudioDecoderClass>(), alignment: align_of::<GstAudioDecoderClass>()}),
    ("GstAudioDitherMethod", Layout {size: size_of::<GstAudioDitherMethod>(), alignment: align_of::<GstAudioDitherMethod>()}),
    ("GstAudioDownmixMeta", Layout {size: size_of::<GstAudioDownmixMeta>(), alignment: align_of::<GstAudioDownmixMeta>()}),
    ("GstAudioEncoder", Layout {size: size_of::<GstAudioEncoder>(), alignment: align_of::<GstAudioEncoder>()}),
    ("GstAudioEncoderClass", Layout {size: size_of::<GstAudioEncoderClass>(), alignment: align_of::<GstAudioEncoderClass>()}),
    ("GstAudioFilter", Layout {size: size_of::<GstAudioFilter>(), alignment: align_of::<GstAudioFilter>()}),
    ("GstAudioFilterClass", Layout {size: size_of::<GstAudioFilterClass>(), alignment: align_of::<GstAudioFilterClass>()}),
    ("GstAudioFlags", Layout {size: size_of::<GstAudioFlags>(), alignment: align_of::<GstAudioFlags>()}),
    ("GstAudioFormat", Layout {size: size_of::<GstAudioFormat>(), alignment: align_of::<GstAudioFormat>()}),
    ("GstAudioFormatFlags", Layout {size: size_of::<GstAudioFormatFlags>(), alignment: align_of::<GstAudioFormatFlags>()}),
    ("GstAudioFormatInfo", Layout {size: size_of::<GstAudioFormatInfo>(), alignment: align_of::<GstAudioFormatInfo>()}),
    ("GstAudioInfo", Layout {size: size_of::<GstAudioInfo>(), alignment: align_of::<GstAudioInfo>()}),
    ("GstAudioLayout", Layout {size: size_of::<GstAudioLayout>(), alignment: align_of::<GstAudioLayout>()}),
    ("GstAudioNoiseShapingMethod", Layout {size: size_of::<GstAudioNoiseShapingMethod>(), alignment: align_of::<GstAudioNoiseShapingMethod>()}),
    ("GstAudioPackFlags", Layout {size: size_of::<GstAudioPackFlags>(), alignment: align_of::<GstAudioPackFlags>()}),
    ("GstAudioQuantizeFlags", Layout {size: size_of::<GstAudioQuantizeFlags>(), alignment: align_of::<GstAudioQuantizeFlags>()}),
    ("GstAudioResamplerFilterInterpolation", Layout {size: size_of::<GstAudioResamplerFilterInterpolation>(), alignment: align_of::<GstAudioResamplerFilterInterpolation>()}),
    ("GstAudioResamplerFilterMode", Layout {size: size_of::<GstAudioResamplerFilterMode>(), alignment: align_of::<GstAudioResamplerFilterMode>()}),
    ("GstAudioResamplerFlags", Layout {size: size_of::<GstAudioResamplerFlags>(), alignment: align_of::<GstAudioResamplerFlags>()}),
    ("GstAudioResamplerMethod", Layout {size: size_of::<GstAudioResamplerMethod>(), alignment: align_of::<GstAudioResamplerMethod>()}),
    ("GstAudioRingBuffer", Layout {size: size_of::<GstAudioRingBuffer>(), alignment: align_of::<GstAudioRingBuffer>()}),
    ("GstAudioRingBufferClass", Layout {size: size_of::<GstAudioRingBufferClass>(), alignment: align_of::<GstAudioRingBufferClass>()}),
    ("GstAudioRingBufferFormatType", Layout {size: size_of::<GstAudioRingBufferFormatType>(), alignment: align_of::<GstAudioRingBufferFormatType>()}),
    ("GstAudioRingBufferSpec", Layout {size: size_of::<GstAudioRingBufferSpec>(), alignment: align_of::<GstAudioRingBufferSpec>()}),
    ("GstAudioRingBufferState", Layout {size: size_of::<GstAudioRingBufferState>(), alignment: align_of::<GstAudioRingBufferState>()}),
    ("GstAudioSink", Layout {size: size_of::<GstAudioSink>(), alignment: align_of::<GstAudioSink>()}),
    ("GstAudioSinkClass", Layout {size: size_of::<GstAudioSinkClass>(), alignment: align_of::<GstAudioSinkClass>()}),
    ("GstAudioSrc", Layout {size: size_of::<GstAudioSrc>(), alignment: align_of::<GstAudioSrc>()}),
    ("GstAudioSrcClass", Layout {size: size_of::<GstAudioSrcClass>(), alignment: align_of::<GstAudioSrcClass>()}),
    ("GstStreamVolumeFormat", Layout {size: size_of::<GstStreamVolumeFormat>(), alignment: align_of::<GstStreamVolumeFormat>()}),
    ("GstStreamVolumeInterface", Layout {size: size_of::<GstStreamVolumeInterface>(), alignment: align_of::<GstStreamVolumeInterface>()}),
];

const RUST_CONSTANTS: &[(&str, &str)] = &[
    ("GST_AUDIO_BASE_SINK_DISCONT_REASON_ALIGNMENT", "4"),
    ("GST_AUDIO_BASE_SINK_DISCONT_REASON_DEVICE_FAILURE", "5"),
    ("GST_AUDIO_BASE_SINK_DISCONT_REASON_FLUSH", "2"),
    ("GST_AUDIO_BASE_SINK_DISCONT_REASON_NEW_CAPS", "1"),
    ("GST_AUDIO_BASE_SINK_DISCONT_REASON_NO_DISCONT", "0"),
    ("GST_AUDIO_BASE_SINK_DISCONT_REASON_SYNC_LATENCY", "3"),
    ("GST_AUDIO_BASE_SINK_SLAVE_CUSTOM", "3"),
    ("GST_AUDIO_BASE_SINK_SLAVE_NONE", "2"),
    ("GST_AUDIO_BASE_SINK_SLAVE_RESAMPLE", "0"),
    ("GST_AUDIO_BASE_SINK_SLAVE_SKEW", "1"),
    ("GST_AUDIO_BASE_SRC_SLAVE_NONE", "3"),
    ("GST_AUDIO_BASE_SRC_SLAVE_RESAMPLE", "0"),
    ("GST_AUDIO_BASE_SRC_SLAVE_RE_TIMESTAMP", "1"),
    ("GST_AUDIO_BASE_SRC_SLAVE_SKEW", "2"),
    ("GST_AUDIO_CD_SRC_MODE_CONTINUOUS", "1"),
    ("GST_AUDIO_CD_SRC_MODE_NORMAL", "0"),
    ("GST_AUDIO_CHANNELS_RANGE", "(int) [ 1, max ]"),
    ("GST_AUDIO_CHANNEL_MIXER_FLAGS_NONE", "0"),
    ("GST_AUDIO_CHANNEL_MIXER_FLAGS_NON_INTERLEAVED_IN", "1"),
    ("GST_AUDIO_CHANNEL_MIXER_FLAGS_NON_INTERLEAVED_OUT", "2"),
    ("GST_AUDIO_CHANNEL_MIXER_FLAGS_UNPOSITIONED_IN", "4"),
    ("GST_AUDIO_CHANNEL_MIXER_FLAGS_UNPOSITIONED_OUT", "8"),
    ("GST_AUDIO_CHANNEL_POSITION_BOTTOM_FRONT_CENTER", "21"),
    ("GST_AUDIO_CHANNEL_POSITION_BOTTOM_FRONT_LEFT", "22"),
    ("GST_AUDIO_CHANNEL_POSITION_BOTTOM_FRONT_RIGHT", "23"),
    ("GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER", "2"),
    ("GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT", "0"),
    ("GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER", "6"),
    ("GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT", "1"),
    ("GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER", "7"),
    ("GST_AUDIO_CHANNEL_POSITION_INVALID", "-1"),
    ("GST_AUDIO_CHANNEL_POSITION_LFE1", "3"),
    ("GST_AUDIO_CHANNEL_POSITION_LFE2", "9"),
    ("GST_AUDIO_CHANNEL_POSITION_MONO", "-2"),
    ("GST_AUDIO_CHANNEL_POSITION_NONE", "-3"),
    ("GST_AUDIO_CHANNEL_POSITION_REAR_CENTER", "8"),
    ("GST_AUDIO_CHANNEL_POSITION_REAR_LEFT", "4"),
    ("GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT", "5"),
    ("GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT", "10"),
    ("GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT", "11"),
    ("GST_AUDIO_CHANNEL_POSITION_SURROUND_LEFT", "26"),
    ("GST_AUDIO_CHANNEL_POSITION_SURROUND_RIGHT", "27"),
    ("GST_AUDIO_CHANNEL_POSITION_TOP_CENTER", "15"),
    ("GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_CENTER", "14"),
    ("GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_LEFT", "12"),
    ("GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_RIGHT", "13"),
    ("GST_AUDIO_CHANNEL_POSITION_TOP_REAR_CENTER", "20"),
    ("GST_AUDIO_CHANNEL_POSITION_TOP_REAR_LEFT", "16"),
    ("GST_AUDIO_CHANNEL_POSITION_TOP_REAR_RIGHT", "17"),
    ("GST_AUDIO_CHANNEL_POSITION_TOP_SIDE_LEFT", "18"),
    ("GST_AUDIO_CHANNEL_POSITION_TOP_SIDE_RIGHT", "19"),
    ("GST_AUDIO_CHANNEL_POSITION_WIDE_LEFT", "24"),
    ("GST_AUDIO_CHANNEL_POSITION_WIDE_RIGHT", "25"),
    ("GST_AUDIO_CONVERTER_FLAG_IN_WRITABLE", "1"),
    ("GST_AUDIO_CONVERTER_FLAG_NONE", "0"),
    ("GST_AUDIO_CONVERTER_FLAG_VARIABLE_RATE", "2"),
    ("GST_AUDIO_CONVERTER_OPT_DITHER_METHOD", "GstAudioConverter.dither-method"),
    ("GST_AUDIO_CONVERTER_OPT_MIX_MATRIX", "GstAudioConverter.mix-matrix"),
    ("GST_AUDIO_CONVERTER_OPT_NOISE_SHAPING_METHOD", "GstAudioConverter.noise-shaping-method"),
    ("GST_AUDIO_CONVERTER_OPT_QUANTIZATION", "GstAudioConverter.quantization"),
    ("GST_AUDIO_CONVERTER_OPT_RESAMPLER_METHOD", "GstAudioConverter.resampler-method"),
    ("GST_AUDIO_DECODER_MAX_ERRORS", "10"),
    ("GST_AUDIO_DECODER_SINK_NAME", "sink"),
    ("GST_AUDIO_DECODER_SRC_NAME", "src"),
    ("GST_AUDIO_DEF_CHANNELS", "2"),
    ("GST_AUDIO_DEF_FORMAT", "S16LE"),
    ("GST_AUDIO_DEF_RATE", "44100"),
    ("GST_AUDIO_DITHER_NONE", "0"),
    ("GST_AUDIO_DITHER_RPDF", "1"),
    ("GST_AUDIO_DITHER_TPDF", "2"),
    ("GST_AUDIO_DITHER_TPDF_HF", "3"),
    ("GST_AUDIO_ENCODER_SINK_NAME", "sink"),
    ("GST_AUDIO_ENCODER_SRC_NAME", "src"),
    ("GST_AUDIO_FLAG_NONE", "0"),
    ("GST_AUDIO_FLAG_UNPOSITIONED", "1"),
    ("GST_AUDIO_FORMATS_ALL", " { S8, U8, S16LE, S16BE, U16LE, U16BE, S24_32LE, S24_32BE, U24_32LE, U24_32BE, S32LE, S32BE, U32LE, U32BE, S24LE, S24BE, U24LE, U24BE, S20LE, S20BE, U20LE, U20BE, S18LE, S18BE, U18LE, U18BE, F32LE, F32BE, F64LE, F64BE }"),
    ("GST_AUDIO_FORMAT_ENCODED", "1"),
    ("GST_AUDIO_FORMAT_F32", "28"),
    ("GST_AUDIO_FORMAT_F32BE", "29"),
    ("GST_AUDIO_FORMAT_F32LE", "28"),
    ("GST_AUDIO_FORMAT_F64", "30"),
    ("GST_AUDIO_FORMAT_F64BE", "31"),
    ("GST_AUDIO_FORMAT_F64LE", "30"),
    ("GST_AUDIO_FORMAT_FLAG_COMPLEX", "16"),
    ("GST_AUDIO_FORMAT_FLAG_FLOAT", "2"),
    ("GST_AUDIO_FORMAT_FLAG_INTEGER", "1"),
    ("GST_AUDIO_FORMAT_FLAG_SIGNED", "4"),
    ("GST_AUDIO_FORMAT_FLAG_UNPACK", "32"),
    ("GST_AUDIO_FORMAT_S16", "4"),
    ("GST_AUDIO_FORMAT_S16BE", "5"),
    ("GST_AUDIO_FORMAT_S16LE", "4"),
    ("GST_AUDIO_FORMAT_S18", "24"),
    ("GST_AUDIO_FORMAT_S18BE", "25"),
    ("GST_AUDIO_FORMAT_S18LE", "24"),
    ("GST_AUDIO_FORMAT_S20", "20"),
    ("GST_AUDIO_FORMAT_S20BE", "21"),
    ("GST_AUDIO_FORMAT_S20LE", "20"),
    ("GST_AUDIO_FORMAT_S24", "16"),
    ("GST_AUDIO_FORMAT_S24BE", "17"),
    ("GST_AUDIO_FORMAT_S24LE", "16"),
    ("GST_AUDIO_FORMAT_S24_32", "8"),
    ("GST_AUDIO_FORMAT_S24_32BE", "9"),
    ("GST_AUDIO_FORMAT_S24_32LE", "8"),
    ("GST_AUDIO_FORMAT_S32", "12"),
    ("GST_AUDIO_FORMAT_S32BE", "13"),
    ("GST_AUDIO_FORMAT_S32LE", "12"),
    ("GST_AUDIO_FORMAT_S8", "2"),
    ("GST_AUDIO_FORMAT_U16", "6"),
    ("GST_AUDIO_FORMAT_U16BE", "7"),
    ("GST_AUDIO_FORMAT_U16LE", "6"),
    ("GST_AUDIO_FORMAT_U18", "26"),
    ("GST_AUDIO_FORMAT_U18BE", "27"),
    ("GST_AUDIO_FORMAT_U18LE", "26"),
    ("GST_AUDIO_FORMAT_U20", "22"),
    ("GST_AUDIO_FORMAT_U20BE", "23"),
    ("GST_AUDIO_FORMAT_U20LE", "22"),
    ("GST_AUDIO_FORMAT_U24", "18"),
    ("GST_AUDIO_FORMAT_U24BE", "19"),
    ("GST_AUDIO_FORMAT_U24LE", "18"),
    ("GST_AUDIO_FORMAT_U24_32", "10"),
    ("GST_AUDIO_FORMAT_U24_32BE", "11"),
    ("GST_AUDIO_FORMAT_U24_32LE", "10"),
    ("GST_AUDIO_FORMAT_U32", "14"),
    ("GST_AUDIO_FORMAT_U32BE", "15"),
    ("GST_AUDIO_FORMAT_U32LE", "14"),
    ("GST_AUDIO_FORMAT_U8", "3"),
    ("GST_AUDIO_FORMAT_UNKNOWN", "0"),
    ("GST_AUDIO_LAYOUT_INTERLEAVED", "0"),
    ("GST_AUDIO_LAYOUT_NON_INTERLEAVED", "1"),
    ("GST_AUDIO_NOISE_SHAPING_ERROR_FEEDBACK", "1"),
    ("GST_AUDIO_NOISE_SHAPING_HIGH", "4"),
    ("GST_AUDIO_NOISE_SHAPING_MEDIUM", "3"),
    ("GST_AUDIO_NOISE_SHAPING_NONE", "0"),
    ("GST_AUDIO_NOISE_SHAPING_SIMPLE", "2"),
    ("GST_AUDIO_PACK_FLAG_NONE", "0"),
    ("GST_AUDIO_PACK_FLAG_TRUNCATE_RANGE", "1"),
    ("GST_AUDIO_QUANTIZE_FLAG_NONE", "0"),
    ("GST_AUDIO_QUANTIZE_FLAG_NON_INTERLEAVED", "1"),
    ("GST_AUDIO_RATE_RANGE", "(int) [ 1, max ]"),
    ("GST_AUDIO_RESAMPLER_FILTER_INTERPOLATION_CUBIC", "2"),
    ("GST_AUDIO_RESAMPLER_FILTER_INTERPOLATION_LINEAR", "1"),
    ("GST_AUDIO_RESAMPLER_FILTER_INTERPOLATION_NONE", "0"),
    ("GST_AUDIO_RESAMPLER_FILTER_MODE_AUTO", "2"),
    ("GST_AUDIO_RESAMPLER_FILTER_MODE_FULL", "1"),
    ("GST_AUDIO_RESAMPLER_FILTER_MODE_INTERPOLATED", "0"),
    ("GST_AUDIO_RESAMPLER_FLAG_NONE", "0"),
    ("GST_AUDIO_RESAMPLER_FLAG_NON_INTERLEAVED_IN", "1"),
    ("GST_AUDIO_RESAMPLER_FLAG_NON_INTERLEAVED_OUT", "2"),
    ("GST_AUDIO_RESAMPLER_FLAG_VARIABLE_RATE", "4"),
    ("GST_AUDIO_RESAMPLER_METHOD_BLACKMAN_NUTTALL", "3"),
    ("GST_AUDIO_RESAMPLER_METHOD_CUBIC", "2"),
    ("GST_AUDIO_RESAMPLER_METHOD_KAISER", "4"),
    ("GST_AUDIO_RESAMPLER_METHOD_LINEAR", "1"),
    ("GST_AUDIO_RESAMPLER_METHOD_NEAREST", "0"),
    ("GST_AUDIO_RESAMPLER_OPT_CUBIC_B", "GstAudioResampler.cubic-b"),
    ("GST_AUDIO_RESAMPLER_OPT_CUBIC_C", "GstAudioResampler.cubic-c"),
    ("GST_AUDIO_RESAMPLER_OPT_CUTOFF", "GstAudioResampler.cutoff"),
    ("GST_AUDIO_RESAMPLER_OPT_FILTER_INTERPOLATION", "GstAudioResampler.filter-interpolation"),
    ("GST_AUDIO_RESAMPLER_OPT_FILTER_MODE", "GstAudioResampler.filter-mode"),
    ("GST_AUDIO_RESAMPLER_OPT_FILTER_MODE_THRESHOLD", "GstAudioResampler.filter-mode-threshold"),
    ("GST_AUDIO_RESAMPLER_OPT_FILTER_OVERSAMPLE", "GstAudioResampler.filter-oversample"),
    ("GST_AUDIO_RESAMPLER_OPT_MAX_PHASE_ERROR", "GstAudioResampler.max-phase-error"),
    ("GST_AUDIO_RESAMPLER_OPT_N_TAPS", "GstAudioResampler.n-taps"),
    ("GST_AUDIO_RESAMPLER_OPT_STOP_ATTENUATION", "GstAudioResampler.stop-attenutation"),
    ("GST_AUDIO_RESAMPLER_OPT_TRANSITION_BANDWIDTH", "GstAudioResampler.transition-bandwidth"),
    ("GST_AUDIO_RESAMPLER_QUALITY_DEFAULT", "4"),
    ("GST_AUDIO_RESAMPLER_QUALITY_MAX", "10"),
    ("GST_AUDIO_RESAMPLER_QUALITY_MIN", "0"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_AC3", "7"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_A_LAW", "2"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_DTS", "9"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_EAC3", "8"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_FLAC", "14"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_GSM", "5"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_IEC958", "6"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_IMA_ADPCM", "3"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_MPEG", "4"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_MPEG2_AAC", "10"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_MPEG2_AAC_RAW", "12"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_MPEG4_AAC", "11"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_MPEG4_AAC_RAW", "13"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_MU_LAW", "1"),
    ("GST_AUDIO_RING_BUFFER_FORMAT_TYPE_RAW", "0"),
    ("GST_AUDIO_RING_BUFFER_STATE_ERROR", "3"),
    ("GST_AUDIO_RING_BUFFER_STATE_PAUSED", "1"),
    ("GST_AUDIO_RING_BUFFER_STATE_STARTED", "2"),
    ("GST_AUDIO_RING_BUFFER_STATE_STOPPED", "0"),
    ("GST_META_TAG_AUDIO_CHANNELS_STR", "channels"),
    ("GST_META_TAG_AUDIO_RATE_STR", "rate"),
    ("GST_META_TAG_AUDIO_STR", "audio"),
    ("GST_STREAM_VOLUME_FORMAT_CUBIC", "1"),
    ("GST_STREAM_VOLUME_FORMAT_DB", "2"),
    ("GST_STREAM_VOLUME_FORMAT_LINEAR", "0"),
];