1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
// 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 nowasmffmpeg || nowasm
package ffmpeg
import (
"context"
"os/exec"
)
// ffmpegRunner limits the number of
// ffmpeg WebAssembly instances that
// may be concurrently running, in
// order to reduce memory usage.
var ffmpegRunner runner
// InitFfmpeg looks for a local copy of ffmpeg in path, and prepares
// the runner to only allow max given concurrent running instances.
func InitFfmpeg(ctx context.Context, max int) error {
_, err := exec.LookPath("ffmpeg")
if err != nil {
return err
}
ffmpegRunner.Init(max)
return nil
}
// Ffmpeg runs the given arguments with an instance of ffmpeg.
func Ffmpeg(ctx context.Context, args Args) (uint32, error) {
return ffmpegRunner.Run(ctx, func() (uint32, error) {
return runCmd(ctx, "ffmpeg", args)
})
}
|
