poc video 01
This commit is contained in:
20
poc002/Cargo.toml
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20
poc002/Cargo.toml
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@@ -0,0 +1,20 @@
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# file: poc-qt/poc002/Cargo.toml
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[package]
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name = "poc-qt002"
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version = "0.2.0"
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edition.workspace = true
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license.workspace = true
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authors.workspace = true
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[build-dependencies]
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cxx-qt-build = { workspace = true, features = ["link_qt_object_files"] }
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jsonschema = { workspace = true, features = [] }
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serde = { workspace = true, features = ["derive"] }
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serde_json = { workspace = true, features = [] }
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[dependencies]
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cxx = { workspace = true, features = [] }
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cxx-qt = { workspace = true, features = [] }
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cxx-qt-lib = { workspace = true, features = ["full", "link_qt_object_files"] }
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297
poc002/build.rs
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297
poc002/build.rs
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@@ -0,0 +1,297 @@
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// file: poc-qt/poc002/build.rs
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use std::collections::BTreeMap;
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use std::fs;
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use std::path::{Path, PathBuf};
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use cxx_qt_build::{CxxQtBuilder, QmlModule};
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use serde::Deserialize;
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use serde_json::Value;
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const DEFAULT_CONFIG_STR: &str = include_str!("build_config.default.json");
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const CONFIG_SCHEMA_STR: &str = include_str!("../build_config.schema.json");
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#[derive(Debug, Deserialize)]
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struct BuildConfig {
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active_profile: String,
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profiles: BTreeMap<String, BuildProfile>,
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}
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#[derive(Debug, Deserialize)]
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struct BuildProfile {
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qt: QtConfig,
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link: LinkConfig,
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}
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#[derive(Debug, Deserialize)]
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struct QtConfig {
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qmake: String,
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lib_dir: String,
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qml_dir: String,
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plugins_dir: String,
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version_major: u8,
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}
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#[derive(Debug, Deserialize)]
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struct LinkConfig {
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rpaths: Vec<String>,
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}
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fn ensure_user_config_exists(config_path: &Path) {
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if config_path.exists() {
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return;
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}
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match fs::write(config_path, DEFAULT_CONFIG_STR) {
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Ok(()) => {
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println!(
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"cargo:warning=build_config.json was missing and has been created from build_config.default.json"
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);
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}
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Err(err) => {
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panic!(
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"failed to create {} from embedded defaults: {}",
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config_path.display(),
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err
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);
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}
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}
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}
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fn validate_embedded_schema() {
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let schema_json = parse_json_str(CONFIG_SCHEMA_STR, "embedded build_config.schema.json");
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match jsonschema::meta::validate(&schema_json) {
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Ok(()) => {}
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Err(err) => {
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panic!("embedded build_config.schema.json is not a valid JSON Schema: {err}");
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}
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}
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}
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fn validate_default_config() {
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validate_config_str_against_schema(DEFAULT_CONFIG_STR, "embedded build_config.default.json");
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}
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fn validate_user_config(config_path: &Path) {
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let raw = match fs::read_to_string(config_path) {
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Ok(v) => v,
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Err(err) => {
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panic!("failed to read {}: {}", config_path.display(), err);
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}
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};
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validate_config_str_against_schema(&raw, &format!("{}", config_path.display()));
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}
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fn validate_config_str_against_schema(config_raw: &str, config_name: &str) {
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let schema_json = parse_json_str(CONFIG_SCHEMA_STR, "embedded build_config.schema.json");
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let config_json = parse_json_str(config_raw, config_name);
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let validator = match jsonschema::validator_for(&schema_json) {
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Ok(v) => v,
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Err(err) => {
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panic!(
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"failed to build JSON Schema validator for {}: {}",
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config_name, err
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);
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}
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};
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if validator.is_valid(&config_json) {
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return;
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}
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let mut errors = Vec::new();
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for err in validator.iter_errors(&config_json) {
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errors.push(format!(
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"- {} at instance path {}",
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err,
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err.instance_path()
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));
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}
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let joined = errors.join("\n");
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panic!("{} failed schema validation:\n{}", config_name, joined);
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}
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fn load_build_config(config_path: &Path) -> BuildConfig {
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let raw = match fs::read_to_string(config_path) {
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Ok(v) => v,
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Err(err) => {
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panic!("failed to read {}: {}", config_path.display(), err);
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}
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};
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match serde_json::from_str::<BuildConfig>(&raw) {
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Ok(v) => v,
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Err(err) => {
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panic!(
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"failed to deserialize {} into BuildConfig: {}",
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config_path.display(),
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err
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);
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}
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}
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}
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fn resolve_profile_name(build_config: &BuildConfig) -> String {
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let env_profile = std::env::var("BUILD_CONFIG_PROFILE");
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match env_profile {
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Ok(v) => {
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if v.trim().is_empty() {
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build_config.active_profile.clone()
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} else {
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v
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}
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}
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Err(_) => build_config.active_profile.clone(),
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}
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}
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fn resolve_profile<'a>(build_config: &'a BuildConfig, profile_name: &str) -> &'a BuildProfile {
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match build_config.profiles.get(profile_name) {
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Some(v) => v,
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None => {
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let mut available = Vec::new();
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for key in build_config.profiles.keys() {
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available.push(key.clone());
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}
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panic!(
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"active profile '{}' not found in build_config.json. available profiles: {}",
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profile_name,
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available.join(", ")
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);
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}
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}
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}
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fn validate_profile_paths(profile: &BuildProfile, profile_name: &str) {
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ensure_existing_file(&profile.qt.qmake, profile_name, "qt.qmake");
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ensure_existing_dir(&profile.qt.lib_dir, profile_name, "qt.lib_dir");
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ensure_existing_dir(&profile.qt.qml_dir, profile_name, "qt.qml_dir");
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ensure_existing_dir(&profile.qt.plugins_dir, profile_name, "qt.plugins_dir");
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let mut index = 0usize;
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while index < profile.link.rpaths.len() {
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ensure_existing_dir(
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&profile.link.rpaths[index],
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profile_name,
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&format!("link.rpaths[{index}]"),
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);
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index += 1;
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}
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}
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fn ensure_existing_file(path_str: &str, profile_name: &str, field_name: &str) {
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let path = Path::new(path_str);
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if !path.exists() {
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panic!(
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"profile '{}' has invalid {}: path does not exist: {}",
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profile_name,
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field_name,
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path.display()
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);
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}
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if !path.is_file() {
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panic!(
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"profile '{}' has invalid {}: path is not a file: {}",
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profile_name,
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field_name,
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path.display()
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);
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}
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}
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fn ensure_existing_dir(path_str: &str, profile_name: &str, field_name: &str) {
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let path = Path::new(path_str);
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if !path.exists() {
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panic!(
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"profile '{}' has invalid {}: path does not exist: {}",
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profile_name,
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field_name,
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path.display()
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);
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}
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if !path.is_dir() {
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panic!(
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"profile '{}' has invalid {}: path is not a directory: {}",
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profile_name,
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field_name,
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path.display()
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);
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}
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}
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fn apply_build_environment(profile: &BuildProfile) {
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unsafe {
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std::env::set_var("QMAKE", &profile.qt.qmake);
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std::env::set_var("QT_VERSION_MAJOR", profile.qt.version_major.to_string());
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}
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println!("cargo:rerun-if-env-changed=BUILD_CONFIG_PROFILE");
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println!("cargo:rerun-if-env-changed=QMAKE");
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println!("cargo:rerun-if-env-changed=QT_VERSION_MAJOR");
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}
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fn apply_linker_settings(profile: &BuildProfile) {
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let mut index = 0usize;
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while index < profile.link.rpaths.len() {
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println!(
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"cargo:rustc-link-arg=-Wl,-rpath,{}",
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profile.link.rpaths[index]
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);
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index += 1;
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}
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}
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fn emit_runtime_hints(profile: &BuildProfile, profile_name: &str) {
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println!(
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"cargo:warning=using build profile '{}' with qmake '{}'",
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profile_name, profile.qt.qmake
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);
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println!(
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"cargo:warning=qt lib_dir='{}', qml_dir='{}', plugins_dir='{}'",
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profile.qt.lib_dir, profile.qt.qml_dir, profile.qt.plugins_dir
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);
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}
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fn parse_json_str(raw: &str, label: &str) -> Value {
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match serde_json::from_str::<Value>(raw) {
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Ok(v) => v,
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Err(err) => {
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panic!("failed to parse {} as JSON: {}", label, err);
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}
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}
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}
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fn main() {
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println!("cargo:rerun-if-changed=build.rs");
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println!("cargo:rerun-if-changed=build_config.default.json");
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println!("cargo:rerun-if-changed=build_config.schema.json");
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println!("cargo:rerun-if-changed=src/bridge.rs");
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println!("cargo:rerun-if-changed=qml/main.qml");
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let config_path = PathBuf::from("build_config.json");
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ensure_user_config_exists(&config_path);
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validate_embedded_schema();
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validate_default_config();
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validate_user_config(&config_path);
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let build_config = load_build_config(&config_path);
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let profile_name = resolve_profile_name(&build_config);
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let profile = resolve_profile(&build_config, &profile_name);
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validate_profile_paths(profile, &profile_name);
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apply_build_environment(profile);
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apply_linker_settings(profile);
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CxxQtBuilder::new_qml_module(QmlModule::new("com.sasedev.video01").qml_files(["qml/main.qml"]))
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.qt_module("Qml")
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.qt_module("Network")
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.qt_module("Multimedia")
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.build();
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emit_runtime_hints(profile, &profile_name);
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}
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33
poc002/build_config.default.json
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33
poc002/build_config.default.json
Normal file
@@ -0,0 +1,33 @@
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{
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"active_profile": "sinus",
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"profiles": {
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"sinus": {
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"qt": {
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"qmake": "/home/sinus/DEV/Qt/6.11.0/gcc_64/bin/qmake",
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"lib_dir": "/home/sinus/DEV/Qt/6.11.0/gcc_64/lib",
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"qml_dir": "/home/sinus/DEV/Qt/6.11.0/gcc_64/qml",
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"plugins_dir": "/home/sinus/DEV/Qt/6.11.0/gcc_64/plugins",
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"version_major": 6
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},
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"link": {
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"rpaths": [
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"/home/sinus/DEV/Qt/6.11.0/gcc_64/lib"
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]
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}
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},
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"system": {
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"qt": {
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"qmake": "/usr/bin/qmake6",
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"lib_dir": "/usr/lib/x86_64-linux-gnu",
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"qml_dir": "/usr/lib/x86_64-linux-gnu/qt6/qml",
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"plugins_dir": "/usr/lib/x86_64-linux-gnu/qt6/plugins",
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"version_major": 6
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},
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"link": {
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"rpaths": [
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"/usr/lib/x86_64-linux-gnu"
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]
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}
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}
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}
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}
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86
poc002/qml/main.qml
Normal file
86
poc002/qml/main.qml
Normal file
@@ -0,0 +1,86 @@
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// file: poc-qt/poc002/qml/main.qml
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import QtQuick
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import QtQuick.Controls
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import QtQuick.Layouts
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import QtMultimedia
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ApplicationWindow {
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visible: true
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width: 960
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height: 640
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title: "POC002 - Video Player"
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ColumnLayout {
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anchors.fill: parent
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anchors.margins: 12
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spacing: 8
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Rectangle {
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Layout.fillWidth: true
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Layout.fillHeight: true
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color: "black"
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border.width: 1
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border.color: "#555"
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VideoOutput {
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id: videoOutput
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anchors.fill: parent
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fillMode: VideoOutput.PreserveAspectFit
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}
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}
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RowLayout {
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Layout.fillWidth: true
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spacing: 8
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Button {
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text: player.playbackState === MediaPlayer.PlayingState ? "Pause" : "Play"
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onClicked: {
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if (player.playbackState === MediaPlayer.PlayingState) {
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player.pause()
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} else {
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player.play()
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}
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}
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}
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Button {
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text: "Stop"
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onClicked: player.stop()
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}
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Slider {
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Layout.fillWidth: true
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from: 0
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to: player.duration > 0 ? player.duration : 1
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value: player.position
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onMoved: player.position = value
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}
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Label {
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text: Math.floor(player.position / 1000) + " / " + Math.floor(player.duration / 1000) + " s"
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}
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}
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Label {
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Layout.fillWidth: true
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text: player.errorString.length > 0
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? ("Error: " + player.errorString)
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: ("Source: " + player.source)
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wrapMode: Text.WrapAnywhere
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}
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}
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MediaPlayer {
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id: player
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source: "../../videos/001.webm"
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audioOutput: AudioOutput {}
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videoOutput: videoOutput
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loops: MediaPlayer.Infinite
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}
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Component.onCompleted: {
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player.play()
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}
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}
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54
poc002/src/main.rs
Normal file
54
poc002/src/main.rs
Normal file
@@ -0,0 +1,54 @@
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// file: poc-qt/poc002/src/main.rs
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use cxx_qt_lib::{QGuiApplication, QQmlApplicationEngine, QString, QUrl};
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use std::env;
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use std::path::PathBuf;
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fn main() {
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let mut app = QGuiApplication::new();
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let mut engine = QQmlApplicationEngine::new();
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let current_dir = match env::current_dir() {
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Ok(v) => v,
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Err(err) => {
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eprintln!("failed to get current_dir: {err}");
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return;
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}
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};
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let main_qml_path: PathBuf = current_dir.join("qml/main.qml");
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let main_qml_path = match main_qml_path.canonicalize() {
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Ok(v) => v,
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Err(err) => {
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eprintln!(
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"failed to resolve qml/main.qml from {}: {err}",
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main_qml_path.display()
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);
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return;
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}
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};
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let main_qml_str = match main_qml_path.to_str() {
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Some(v) => v.to_string(),
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None => {
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eprintln!("qml path is not valid UTF-8: {}", main_qml_path.display());
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return;
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}
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};
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println!("loading qml from: {}", main_qml_str);
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if let Some(engine_ref) = engine.as_mut() {
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let qml_url = QUrl::from_local_file(&QString::from(main_qml_str));
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engine_ref.load(&qml_url);
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||||
} else {
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eprintln!("failed to create QQmlApplicationEngine");
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return;
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||||
}
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||||
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||||
if let Some(app_ref) = app.as_mut() {
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app_ref.exec();
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} else {
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eprintln!("failed to create QGuiApplication");
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||||
}
|
||||
}
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||||
Reference in New Issue
Block a user