mirror of
https://github.com/wader/fq.git
synced 2024-12-01 02:30:32 +03:00
e9d9f8aef9
Rename s/interface{}/any/g
Preparation for using generics in decode API and native jq funcations etc
Remove some unused linter ignores as linter has been fixed
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package av1
|
|
|
|
// https://aomediacodec.github.io/av1-spec/av1-spec.pdf
|
|
// https://github.com/ietf-wg-cellar/matroska-specification/blob/master/codec/av1.md
|
|
// https://cdn.rawgit.com/AOMediaCodec/av1-isobmff/v1.0.0/
|
|
|
|
import (
|
|
"github.com/wader/fq/format"
|
|
"github.com/wader/fq/format/registry"
|
|
"github.com/wader/fq/pkg/decode"
|
|
"github.com/wader/fq/pkg/scalar"
|
|
)
|
|
|
|
func init() {
|
|
registry.MustRegister(decode.Format{
|
|
Name: format.AV1_CCR,
|
|
Description: "AV1 Codec Configuration Record",
|
|
DecodeFn: ccrDecode,
|
|
})
|
|
}
|
|
|
|
func ccrDecode(d *decode.D, in any) any {
|
|
d.FieldU1("marker")
|
|
d.FieldU7("version")
|
|
d.FieldU3("seq_profile")
|
|
d.FieldU5("seq_level_idx_0")
|
|
d.FieldU1("seq_tier_0")
|
|
d.FieldU1("high_bitdepth")
|
|
d.FieldU1("twelve_bit")
|
|
d.FieldU1("monochrome")
|
|
d.FieldU1("chroma_subsampling_x")
|
|
d.FieldU1("chroma_subsampling_y")
|
|
d.FieldU2("chroma_sample_position")
|
|
d.FieldU3("reserved = 0")
|
|
initalPreDelay := d.FieldBool("initial_presentation_delay_present")
|
|
if initalPreDelay {
|
|
d.FieldU4("initial_presentation_delay", scalar.ActualUAdd(1))
|
|
} else {
|
|
d.FieldU4("reserved")
|
|
}
|
|
if d.BitsLeft() > 0 {
|
|
d.FieldRawLen("config_obus", d.BitsLeft())
|
|
}
|
|
|
|
return nil
|
|
}
|