46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
package routes
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import (
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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)
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func TranscodeIfNeeded(simDir, filename string) string {
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ext := strings.ToLower(filepath.Ext(filename))
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if ext != ".avi" {
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return filename
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}
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baseName := strings.TrimSuffix(filename, filepath.Ext(filename))
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mp4Filename := baseName + ".mp4"
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aviPath := filepath.Join(simDir, filename)
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mp4Path := filepath.Join(simDir, mp4Filename)
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if _, err := os.Stat(mp4Path); err == nil {
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os.Remove(aviPath)
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return mp4Filename
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}
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log.Printf("Attempting GPU Transcoding (h264_nvenc) %s to %s...\n", aviPath, mp4Path)
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cmdGPU := exec.Command("ffmpeg", "-y", "-i", aviPath, "-c:v", "h264_nvenc", "-pix_fmt", "yuv420p", "-movflags", "+faststart", mp4Path)
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if err := cmdGPU.Run(); err == nil {
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os.Remove(aviPath)
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return mp4Filename
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}
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log.Printf("GPU transcoding failed/unavailable, falling back to CPU (libx264) for %s...\n", aviPath)
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cmdCPU := exec.Command("ffmpeg", "-y", "-i", aviPath, "-c:v", "libx264", "-pix_fmt", "yuv420p", "-movflags", "+faststart", mp4Path)
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if err := cmdCPU.Run(); err == nil {
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os.Remove(aviPath)
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return mp4Filename
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} else {
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log.Println("Failed to transcode (both GPU and CPU):", err)
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return filename
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}
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}
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