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repochecker/videos: Also check video ratio

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This commit is contained in:
nemunaire 2022-10-31 18:12:11 +01:00
parent 38a4e21e28
commit 91b2daea2e
1 changed files with 28 additions and 0 deletions
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28
repochecker/videos/video.go
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@ -25,6 +25,28 @@ type VideoInfo struct {
} `json:"streams"` } `json:"streams"`
} }
func gcd(a, b int) int {
var bgcd func(a, b, res int) int
bgcd = func(a, b, res int) int {
switch {
case a == b:
return res * a
case a%2 == 0 && b%2 == 0:
return bgcd(a/2, b/2, 2*res)
case a%2 == 0:
return bgcd(a/2, b, res)
case b%2 == 0:
return bgcd(a, b/2, res)
case a > b:
return bgcd(a-b, b, res)
default:
return bgcd(a, b-a, res)
}
}
return bgcd(a, b, 1)
}
func checkResolutionVideo(e *fic.Exercice, exceptions *sync.CheckExceptions) (errs []error) { func checkResolutionVideo(e *fic.Exercice, exceptions *sync.CheckExceptions) (errs []error) {
i, ok := sync.GlobalImporter.(sync.LocalImporter) i, ok := sync.GlobalImporter.(sync.LocalImporter)
if !ok { if !ok {
@ -66,6 +88,12 @@ func checkResolutionVideo(e *fic.Exercice, exceptions *sync.CheckExceptions) (er
errs = append(errs, fmt.Errorf("video track is too wide: %dx%d (maximum allowed: 1920x1080)", s.Width, s.Height)) errs = append(errs, fmt.Errorf("video track is too wide: %dx%d (maximum allowed: 1920x1080)", s.Width, s.Height))
} }
ratio := s.Width * 10 / s.Height
if ratio < 13 || ratio > 19 && !exceptions.HasException(":size:strange_ratio") {
m := gcd(s.Width, s.Height)
errs = append(errs, fmt.Errorf("video track has a strange ratio: %d:%d. Is this really expected?", s.Width/m, s.Height/m))
}
if s.CodecName != "h264" { if s.CodecName != "h264" {
errs = append(errs, fmt.Errorf("video codec has to be H264 (currently: %s)", s.CodecLongName)) errs = append(errs, fmt.Errorf("video codec has to be H264 (currently: %s)", s.CodecLongName))
} }