Leak_Technologies/VideoTools
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feat: complete SVT-AV1 preset support in snippet encoding

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Added SVT-AV1 preset mapping (0-13) to both snippet encoding paths:
- Snippet generation in standard mode (line ~5035)
- Snippet generation in conversion format mode (line ~5132)

Both now map x264/x265 presets to SVT-AV1 presets:
- ultrafast → 12 (~10-15 hours instead of 80+)
- fast → 8 (default for snippets)
- medium → 6
- veryslow → 3 (~80+ hours)

This ensures AV1 encoding has proper speed presets across all
encoding operations, preventing extremely slow encodes when users
select AV1 codec.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
Stu Leak 2026-01-02 17:22:17 -05:00
parent 1c2be0aee6
commit 632cb6667c
1 changed files with 52 additions and 2 deletions
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54
main.go
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@ -5030,8 +5030,34 @@ func (s *appState) executeSnippetJob(ctx context.Context, job *queue.Job, progre
if strings.Contains(videoCodec, "x264") || strings.Contains(videoCodec, "x265") {
args = append(args, "-preset", preset, "-crf", crfVal, "-maxrate", targetBitrate, "-bufsize", targetBitrate)
} else if strings.Contains(videoCodec, "vp9") || strings.Contains(videoCodec, "av1") {
} else if strings.Contains(videoCodec, "vp9") {
args = append(args, "-crf", crfVal, "-maxrate", targetBitrate, "-bufsize", targetBitrate)
} else if strings.Contains(videoCodec, "av1") || strings.Contains(videoCodec, "svtav1") {
// Map x264/x265 presets to SVT-AV1 presets (0-13, lower=slower/better)
var svtPreset string
switch preset {
case "veryslow":
svtPreset = "3"
case "slower":
svtPreset = "4"
case "slow":
svtPreset = "5"
case "medium":
svtPreset = "6"
case "fast":
svtPreset = "8"
case "faster":
svtPreset = "9"
case "veryfast":
svtPreset = "10"
case "superfast":
svtPreset = "11"
case "ultrafast":
svtPreset = "12"
default:
svtPreset = "8" // Fast preset for snippets
}
args = append(args, "-preset", svtPreset, "-crf", crfVal, "-maxrate", targetBitrate, "-bufsize", targetBitrate)
}
// Audio codec
@ -5105,7 +5131,31 @@ func (s *appState) executeSnippetJob(ctx context.Context, job *queue.Job, progre
args = append(args, "-crf", crfVal, "-maxrate", targetBitrate, "-bufsize", targetBitrate)
case "av1":
args = append(args, "-c:v", "libsvtav1")
args = append(args, "-crf", crfVal, "-maxrate", targetBitrate, "-bufsize", targetBitrate)
// Map x264/x265 presets to SVT-AV1 presets (0-13, lower=slower/better)
var svtPreset string
switch preset {
case "veryslow":
svtPreset = "3"
case "slower":
svtPreset = "4"
case "slow":
svtPreset = "5"
case "medium":
svtPreset = "6"
case "fast":
svtPreset = "8"
case "faster":
svtPreset = "9"
case "veryfast":
svtPreset = "10"
case "superfast":
svtPreset = "11"
case "ultrafast":
svtPreset = "12"
default:
svtPreset = "8" // Fast preset for snippets
}
args = append(args, "-preset", svtPreset, "-crf", crfVal, "-maxrate", targetBitrate, "-bufsize", targetBitrate)
case "copy":
args = append(args, "-c:v", "copy")
default: