mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-24 12:46:38 +00:00
112 lines
2.8 KiB
Go
112 lines
2.8 KiB
Go
// GoToSocial
|
|
// Copyright (C) GoToSocial Authors admin@gotosocial.org
|
|
// SPDX-License-Identifier: AGPL-3.0-or-later
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
//go:build !nowasm
|
|
|
|
package ffmpeg
|
|
|
|
import (
|
|
"context"
|
|
"os"
|
|
|
|
ffmpeglib "codeberg.org/gruf/go-ffmpreg/embed/ffmpeg"
|
|
ffprobelib "codeberg.org/gruf/go-ffmpreg/embed/ffprobe"
|
|
"codeberg.org/gruf/go-ffmpreg/wasm"
|
|
"github.com/tetratelabs/wazero"
|
|
)
|
|
|
|
var (
|
|
// shared WASM runtime instance.
|
|
runtime wazero.Runtime
|
|
|
|
// ffmpeg / ffprobe compiled WASM.
|
|
ffmpeg wazero.CompiledModule
|
|
ffprobe wazero.CompiledModule
|
|
)
|
|
|
|
// compileFfmpeg ensures the ffmpeg WebAssembly has been
|
|
// pre-compiled into memory. If already compiled is a no-op.
|
|
func compileFfmpeg(ctx context.Context) error {
|
|
if ffmpeg != nil {
|
|
return nil
|
|
}
|
|
|
|
// Ensure runtime already initialized.
|
|
if err := initRuntime(ctx); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Compile the ffmpeg WebAssembly module into memory.
|
|
cmod, err := runtime.CompileModule(ctx, ffmpeglib.B)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Set module.
|
|
ffmpeg = cmod
|
|
return nil
|
|
}
|
|
|
|
// compileFfprobe ensures the ffprobe WebAssembly has been
|
|
// pre-compiled into memory. If already compiled is a no-op.
|
|
func compileFfprobe(ctx context.Context) error {
|
|
if ffprobe != nil {
|
|
return nil
|
|
}
|
|
|
|
// Ensure runtime already initialized.
|
|
if err := initRuntime(ctx); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Compile the ffprobe WebAssembly module into memory.
|
|
cmod, err := runtime.CompileModule(ctx, ffprobelib.B)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Set module.
|
|
ffprobe = cmod
|
|
return nil
|
|
}
|
|
|
|
// initRuntime initializes the global wazero.Runtime,
|
|
// if already initialized this function is a no-op.
|
|
func initRuntime(ctx context.Context) (err error) {
|
|
if runtime != nil {
|
|
return nil
|
|
}
|
|
|
|
// Create new runtime config.
|
|
cfg := wazero.NewRuntimeConfig()
|
|
|
|
if dir := os.Getenv("GTS_WAZERO_COMPILATION_CACHE"); dir != "" {
|
|
// Use on-filesystem compilation cache given by env.
|
|
cache, err := wazero.NewCompilationCacheWithDir(dir)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Update runtime config with cache.
|
|
cfg = cfg.WithCompilationCache(cache)
|
|
}
|
|
|
|
// Initialize new runtime from config.
|
|
runtime, err = wasm.NewRuntime(ctx, cfg)
|
|
return
|
|
}
|