40 lines
796 B
Go
40 lines
796 B
Go
package transcode
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import (
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"context"
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"fmt"
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"io"
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"os/exec"
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)
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type FFmpegTranscoder struct{}
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var _ Transcoder = (*FFmpegTranscoder)(nil)
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func NewFFmpegTranscoder() *FFmpegTranscoder {
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return &FFmpegTranscoder{}
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}
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var ErrFFmpegExit = fmt.Errorf("ffmpeg exited with non 0 status code")
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func (*FFmpegTranscoder) Transcode(ctx context.Context, profile Profile, in string) (io.ReadCloser, error) {
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name, args, err := parseProfile(profile, in)
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if err != nil {
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return nil, fmt.Errorf("split command: %w", err)
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}
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preader, pwriter := io.Pipe()
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cmd := exec.CommandContext(ctx, name, args...)
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cmd.Stdout = pwriter
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if err := cmd.Start(); err != nil {
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return nil, fmt.Errorf("starting cmd: %w", err)
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}
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go func() {
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_ = pwriter.CloseWithError(cmd.Wait())
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}()
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return preader, nil
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}
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