mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-29 07:02:45 +00:00
cde2fb6244
* initial work replacing our media decoding / encoding pipeline with ffprobe + ffmpeg
* specify the video codec to use when generating static image from emoji
* update go-storage library (fixes incompatibility after updating go-iotools)
* maintain image aspect ratio when generating a thumbnail for it
* update readme to show go-ffmpreg
* fix a bunch of media tests, move filesize checking to callers of media manager for more flexibility
* remove extra debug from error message
* fix up incorrect function signatures
* update PutFile to just use regular file copy, as changes are file is on separate partition
* fix remaining tests, remove some unneeded tests now we're working with ffmpeg/ffprobe
* update more tests, add more code comments
* add utilities to generate processed emoji / media outputs
* fix remaining tests
* add test for opus media file, add license header to utility cmds
* limit the number of concurrently available ffmpeg / ffprobe instances
* reduce number of instances
* further reduce number of instances
* fix envparsing test with configuration variables
* update docs and configuration with new media-{local,remote}-max-size variables
110 lines
2.6 KiB
Go
110 lines
2.6 KiB
Go
package ffmpeg
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import (
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"context"
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"codeberg.org/gruf/go-ffmpreg/embed/ffmpeg"
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"codeberg.org/gruf/go-ffmpreg/internal"
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"codeberg.org/gruf/go-ffmpreg/util"
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"codeberg.org/gruf/go-ffmpreg/wasm"
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"github.com/tetratelabs/wazero"
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"github.com/tetratelabs/wazero/api"
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"github.com/tetratelabs/wazero/imports/wasi_snapshot_preview1"
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)
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// pool of WASM module instances.
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var pool = wasm.InstancePool{
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Instantiator: wasm.Instantiator{
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// WASM module name.
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Module: "ffmpeg",
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// Per-instance WebAssembly runtime (with shared cache).
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Runtime: func(ctx context.Context) wazero.Runtime {
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// Prepare config with cache.
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cfg := wazero.NewRuntimeConfig()
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cfg = cfg.WithCoreFeatures(ffmpeg.CoreFeatures)
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cfg = cfg.WithCompilationCache(internal.Cache)
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// Instantiate runtime with our config.
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rt := wazero.NewRuntimeWithConfig(ctx, cfg)
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// Prepare default "env" host module.
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env := rt.NewHostModuleBuilder("env")
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env = env.NewFunctionBuilder().
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WithGoModuleFunction(
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api.GoModuleFunc(util.Wasm_Tempnam),
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[]api.ValueType{api.ValueTypeI32, api.ValueTypeI32},
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[]api.ValueType{api.ValueTypeI32},
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).
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Export("tempnam")
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// Instantiate "env" module in our runtime.
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_, err := env.Instantiate(context.Background())
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if err != nil {
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panic(err)
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}
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// Instantiate the wasi snapshot preview 1 in runtime.
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_, err = wasi_snapshot_preview1.Instantiate(ctx, rt)
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if err != nil {
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panic(err)
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}
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return rt
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},
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// Per-run module configuration.
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Config: wazero.NewModuleConfig,
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// Embedded WASM.
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Source: ffmpeg.B,
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},
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}
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// Precompile ensures at least compiled ffmpeg
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// instance is available in the global pool.
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func Precompile(ctx context.Context) error {
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inst, err := pool.Get(ctx)
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if err != nil {
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return err
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}
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pool.Put(inst)
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return nil
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}
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// Get fetches new ffmpeg instance from pool, prefering cached if available.
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func Get(ctx context.Context) (*wasm.Instance, error) { return pool.Get(ctx) }
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// Put places the given ffmpeg instance in pool.
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func Put(inst *wasm.Instance) { pool.Put(inst) }
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// Run will run the given args against an ffmpeg instance from pool.
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func Run(ctx context.Context, args wasm.Args) (uint32, error) {
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inst, err := pool.Get(ctx)
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if err != nil {
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return 0, err
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}
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rc, err := inst.Run(ctx, args)
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pool.Put(inst)
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return rc, err
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}
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// Cached returns a cached instance (if any) from pool.
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func Cached() *wasm.Instance { return pool.Cached() }
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// Free drops all instances
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// cached in instance pool.
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func Free() {
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ctx := context.Background()
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for {
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inst := pool.Cached()
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if inst == nil {
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return
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}
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_ = inst.Close(ctx)
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}
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}
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