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h264: improve DTS extractor

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This improves the DTS extractor in order to work with streams with no
timing infos or incorrect timing infos
This commit is contained in:
aler9
2023-01-06 14:59:50 +01:00
parent f7e8c5b4bb
commit a759ba9d01
4 changed files with 155 additions and 389 deletions
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10
pkg/codecs/h264/sps.go
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@@ -565,6 +565,11 @@ func (s *SPS) Unmarshal(buf []byte) error {
return err
}
s.DeltaPicOrderAlwaysZeroFlag = false
s.OffsetForNonRefPic = 0
s.OffsetForTopToBottomField = 0
s.OffsetForRefFrames = nil
case 1:
s.Log2MaxPicOrderCntLsbMinus4 = 0
@@ -598,12 +603,15 @@ func (s *SPS) Unmarshal(buf []byte) error {
s.OffsetForRefFrames[i] = v
}
default:
case 2:
s.Log2MaxPicOrderCntLsbMinus4 = 0
s.DeltaPicOrderAlwaysZeroFlag = false
s.OffsetForNonRefPic = 0
s.OffsetForTopToBottomField = 0
s.OffsetForRefFrames = nil
default:
return fmt.Errorf("invalid pic_order_cnt_type: %d", s.PicOrderCntType)
}
s.MaxNumRefFrames, err = bits.ReadGolombUnsigned(buf, &pos)