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Use VA-API hardware scaling

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hagn 2023-05-01 14:46:18 +02:00 committed by GitHub
parent 9b2f45aa18
commit f4516015c2
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2 changed files with 42 additions and 3 deletions
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36
core/transcoder/codecs.go
View file

@ -16,6 +16,7 @@ type Codec interface {
DisplayName() string
GlobalFlags() string
PixelFormat() string
Scaler() string
ExtraArguments() string
ExtraFilters() string
VariantFlags(v *HLSVariant) string
@ -53,6 +54,11 @@ func (c *Libx264Codec) PixelFormat() string {
return "yuv420p" //nolint:goconst
}
// Scaler is the scaler used for resizing the video in the transcoder.
func (c *Libx264Codec) Scaler() string {
return ""
}
// ExtraArguments are the extra arguments used with this codec in the transcoder.
func (c *Libx264Codec) ExtraArguments() string {
return strings.Join([]string{
@ -117,6 +123,11 @@ func (c *OmxCodec) PixelFormat() string {
return "yuv420p"
}
// Scaler is the scaler used for resizing the video in the transcoder.
func (c *OmxCodec) Scaler() string {
return ""
}
// ExtraArguments are the extra arguments used with this codec in the transcoder.
func (c *OmxCodec) ExtraArguments() string {
return strings.Join([]string{
@ -183,6 +194,11 @@ func (c *VaapiCodec) PixelFormat() string {
return "vaapi_vld"
}
// Scaler is the scaler used for resizing the video in the transcoder.
func (c *VaapiCodec) Scaler() string {
return "scale_vaapi"
}
// ExtraFilters are the extra filters required for this codec in the transcoder.
func (c *VaapiCodec) ExtraFilters() string {
return ""
@ -245,6 +261,11 @@ func (c *NvencCodec) PixelFormat() string {
return "yuv420p"
}
// Scaler is the scaler used for resizing the video in the transcoder.
func (c *NvencCodec) Scaler() string {
return ""
}
// ExtraArguments are the extra arguments used with this codec in the transcoder.
func (c *NvencCodec) ExtraArguments() string {
return ""
@ -304,6 +325,11 @@ func (c *QuicksyncCodec) PixelFormat() string {
return "nv12"
}
// Scaler is the scaler used for resizing the video in the transcoder.
func (c *QuicksyncCodec) Scaler() string {
return ""
}
// ExtraArguments are the extra arguments used with this codec in the transcoder.
func (c *QuicksyncCodec) ExtraArguments() string {
return ""
@ -362,6 +388,11 @@ func (c *Video4Linux) PixelFormat() string {
return "nv21"
}
// Scaler is the scaler used for resizing the video in the transcoder.
func (c *Video4Linux) Scaler() string {
return ""
}
// ExtraArguments are the extra arguments used with this codec in the transcoder.
func (c *Video4Linux) ExtraArguments() string {
return ""
@ -421,6 +452,11 @@ func (c *VideoToolboxCodec) PixelFormat() string {
return "nv12"
}
// Scaler is the scaler used for resizing the video in the transcoder.
func (c *VideoToolboxCodec) Scaler() string {
return ""
}
// ExtraFilters are the extra filters required for this codec in the transcoder.
func (c *VideoToolboxCodec) ExtraFilters() string {
return ""

9
core/transcoder/transcoder.go
View file

@ -300,7 +300,7 @@ func (v *HLSVariant) getVariantString(t *Transcoder) string {
if (v.videoSize.Width != 0 || v.videoSize.Height != 0) && !v.isVideoPassthrough {
// Order here matters, you must scale before changing hardware formats
filters := []string{
v.getScalingString(),
v.getScalingString(t.codec.Scaler()),
}
if t.codec.ExtraFilters() != "" {
filters = append(filters, t.codec.ExtraFilters())
@ -351,8 +351,11 @@ func (v *HLSVariant) SetVideoScalingHeight(height int) {
v.videoSize.Height = height
}
func (v *HLSVariant) getScalingString() string {
return fmt.Sprintf("scale=%s", v.videoSize.getString())
func (v *HLSVariant) getScalingString(scaler string) string {
if scaler == "" {
scaler = "scale"
}
return fmt.Sprintf("%s=%s", scaler, v.videoSize.getString())
}
// Video Quality