61 lines
1.7 KiB
Go
61 lines
1.7 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//go:build !nowasm
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package ffmpeg
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import (
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"context"
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"errors"
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"codeberg.org/gruf/go-ffmpreg/wasm"
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)
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// ffmpegRunner limits the number of
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// ffmpeg WebAssembly instances that
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// may be concurrently running, in
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// order to reduce memory usage.
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var ffmpegRunner runner
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// InitFfmpeg precompiles the ffmpeg WebAssembly source into memory and
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// prepares the runner to only allow max given concurrent running instances.
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func InitFfmpeg(ctx context.Context, max int) error {
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ffmpegRunner.Init(max)
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return initWASM(ctx)
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}
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// Ffmpeg runs the given arguments with an instance of ffmpeg.
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func Ffmpeg(ctx context.Context, args Args) (uint32, error) {
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return ffmpegRunner.Run(ctx, func() (uint32, error) {
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// Load WASM rt and module.
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ffmpreg := ffmpreg.Load()
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if ffmpreg == nil {
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return 0, errors.New("wasm not initialized")
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}
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// Call into ffmpeg.
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args.Name = "ffmpeg"
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return wasm.Run(ctx,
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ffmpreg.run,
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ffmpreg.mod,
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args,
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)
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})
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}
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