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Create explicit mapping between cpu use levels and codec presets. Closes #2610

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This commit is contained in:
Gabe Kangas 2023-01-22 20:45:19 -08:00
parent 748219d93e
commit f4ed7d7453
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GPG key ID: 4345B2060657F330
1 changed files with 90 additions and 76 deletions
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166
core/transcoder/codecs.go
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@ -31,8 +31,7 @@ var supportedCodecs = map[string]string{
}
// Libx264Codec represents an instance of the Libx264 Codec.
type Libx264Codec struct {
}
type Libx264Codec struct{}
// Name returns the codec name.
func (c *Libx264Codec) Name() string {
@ -77,24 +76,26 @@ func (c *Libx264Codec) VariantFlags(v *HLSVariant) string {
// GetPresetForLevel returns the string preset for this codec given an integer level.
func (c *Libx264Codec) GetPresetForLevel(l int) string {
presetMapping := []string{
"ultrafast",
"superfast",
"veryfast",
"faster",
"fast",
presetMapping := map[int]string{
0: "ultrafast",
1: "superfast",
2: "veryfast",
3: "faster",
4: "fast",
}
if l >= len(presetMapping) {
return "superfast" //nolint:goconst
preset, ok := presetMapping[l]
if !ok {
defaultPreset := presetMapping[1]
log.Errorf("Invalid level for x264 preset %d, defaulting to %s", l, defaultPreset)
return defaultPreset
}
return presetMapping[l]
return preset
}
// OmxCodec represents an instance of the Omx codec.
type OmxCodec struct {
}
type OmxCodec struct{}
// Name returns the codec name.
func (c *OmxCodec) Name() string {
@ -135,24 +136,26 @@ func (c *OmxCodec) VariantFlags(v *HLSVariant) string {
// GetPresetForLevel returns the string preset for this codec given an integer level.
func (c *OmxCodec) GetPresetForLevel(l int) string {
presetMapping := []string{
"ultrafast",
"superfast",
"veryfast",
"faster",
"fast",
presetMapping := map[int]string{
0: "ultrafast",
1: "superfast",
2: "veryfast",
3: "faster",
4: "fast",
}
if l >= len(presetMapping) {
return "superfast"
preset, ok := presetMapping[l]
if !ok {
defaultPreset := presetMapping[1]
log.Errorf("Invalid level for omx preset %d, defaulting to %s", l, defaultPreset)
return defaultPreset
}
return presetMapping[l]
return preset
}
// VaapiCodec represents an instance of the Vaapi codec.
type VaapiCodec struct {
}
type VaapiCodec struct{}
// Name returns the codec name.
func (c *VaapiCodec) Name() string {
@ -195,24 +198,26 @@ func (c *VaapiCodec) VariantFlags(v *HLSVariant) string {
// GetPresetForLevel returns the string preset for this codec given an integer level.
func (c *VaapiCodec) GetPresetForLevel(l int) string {
presetMapping := []string{
"ultrafast",
"superfast",
"veryfast",
"faster",
"fast",
presetMapping := map[int]string{
0: "ultrafast",
1: "superfast",
2: "veryfast",
3: "faster",
4: "fast",
}
if l >= len(presetMapping) {
return "superfast"
preset, ok := presetMapping[l]
if !ok {
defaultPreset := presetMapping[1]
log.Errorf("Invalid level for vaapi preset %d, defaulting to %s", l, defaultPreset)
return defaultPreset
}
return presetMapping[l]
return preset
}
// NvencCodec represents an instance of the Nvenc Codec.
type NvencCodec struct {
}
type NvencCodec struct{}
// Name returns the codec name.
func (c *NvencCodec) Name() string {
@ -256,24 +261,26 @@ func (c *NvencCodec) VariantFlags(v *HLSVariant) string {
// GetPresetForLevel returns the string preset for this codec given an integer level.
func (c *NvencCodec) GetPresetForLevel(l int) string {
presetMapping := []string{
"p1",
"p2",
"p3",
"p4",
"p5",
presetMapping := map[int]string{
0: "p1",
1: "p2",
2: "p3",
3: "p4",
4: "p5",
}
if l >= len(presetMapping) {
return "p3"
preset, ok := presetMapping[l]
if !ok {
defaultPreset := presetMapping[2]
log.Errorf("Invalid level for nvenc preset %d, defaulting to %s", l, defaultPreset)
return defaultPreset
}
return presetMapping[l]
return preset
}
// QuicksyncCodec represents an instance of the Intel Quicksync Codec.
type QuicksyncCodec struct {
}
type QuicksyncCodec struct{}
// Name returns the codec name.
func (c *QuicksyncCodec) Name() string {
@ -312,19 +319,22 @@ func (c *QuicksyncCodec) VariantFlags(v *HLSVariant) string {
// GetPresetForLevel returns the string preset for this codec given an integer level.
func (c *QuicksyncCodec) GetPresetForLevel(l int) string {
presetMapping := []string{
"ultrafast",
"superfast",
"veryfast",
"faster",
"fast",
presetMapping := map[int]string{
0: "ultrafast",
1: "superfast",
2: "veryfast",
3: "faster",
4: "fast",
}
if l >= len(presetMapping) {
return "superfast"
preset, ok := presetMapping[l]
if !ok {
defaultPreset := presetMapping[1]
log.Errorf("Invalid level for quicksync preset %d, defaulting to %s", l, defaultPreset)
return defaultPreset
}
return presetMapping[l]
return preset
}
// Video4Linux represents an instance of the V4L Codec.
@ -367,24 +377,25 @@ func (c *Video4Linux) VariantFlags(v *HLSVariant) string {
// GetPresetForLevel returns the string preset for this codec given an integer level.
func (c *Video4Linux) GetPresetForLevel(l int) string {
presetMapping := []string{
"ultrafast",
"superfast",
"veryfast",
"faster",
"fast",
presetMapping := map[int]string{
0: "ultrafast",
1: "superfast",
2: "veryfast",
3: "faster",
4: "fast",
}
if l >= len(presetMapping) {
return "superfast"
preset, ok := presetMapping[l]
if !ok {
defaultPreset := presetMapping[1]
log.Errorf("Invalid level for v4l preset %d, defaulting to %s", l, defaultPreset)
return defaultPreset
}
return presetMapping[l]
return preset
}
// VideoToolboxCodec represents an instance of the VideoToolbox codec.
type VideoToolboxCodec struct {
}
type VideoToolboxCodec struct{}
// Name returns the codec name.
func (c *VideoToolboxCodec) Name() string {
@ -435,19 +446,22 @@ func (c *VideoToolboxCodec) VariantFlags(v *HLSVariant) string {
// GetPresetForLevel returns the string preset for this codec given an integer level.
func (c *VideoToolboxCodec) GetPresetForLevel(l int) string {
presetMapping := []string{
"ultrafast",
"superfast",
"veryfast",
"faster",
"fast",
presetMapping := map[int]string{
0: "ultrafast",
1: "superfast",
2: "veryfast",
3: "faster",
4: "fast",
}
if l >= len(presetMapping) {
return "superfast"
preset, ok := presetMapping[l]
if !ok {
defaultPreset := presetMapping[1]
log.Errorf("Invalid level for videotoolbox preset %d, defaulting to %s", l, defaultPreset)
return defaultPreset
}
return presetMapping[l]
return preset
}
// GetCodecs will return the supported codecs available on the system.