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46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
package avc
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// H.264-AVC-ISO_IEC_14496-15.pdf
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// 5.2.4 Decoder configuration information
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// <buf> body of tag
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//func parseAVCSeqHeader(buf []byte) (sps, pps []byte, err error) {
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// // TODO chef: check if read out of <buf> range
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//
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// if buf[0] != AVCKey || buf[1] != isAVCKeySeqHeader || buf[2] != 0 || buf[3] != 0 || buf[4] != 0 {
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// log.Error("parse avc seq header failed.")
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// err = httpFlvErr
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// return
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// }
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//
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// //configurationVersion := buf[5]
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// //avcProfileIndication := buf[6]
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// //profileCompatibility := buf[7]
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// //avcLevelIndication := buf[8]
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// //lengthSizeMinusOne := buf[9] & 0x03
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//
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// index := 10
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//
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// numOfSPS := int(buf[index] & 0x1F)
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// index++
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// // TODO chef: if the situation of multi sps exist?
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// // only take the last one.
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// for i := 0; i < numOfSPS; i++ {
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// lenOfSPS := int(bele.BEUint16(buf[index:]))
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// index += 2
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// sps = append(sps, buf[index:index+lenOfSPS]...)
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// index += lenOfSPS
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// }
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//
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// numOfPPS := int(buf[index] & 0x1F)
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// index++
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// for i := 0; i < numOfPPS; i++ {
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// lenOfPPS := int(bele.BEUint16(buf[index:]))
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// index += 2
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// pps = append(pps, buf[index:index+lenOfPPS]...)
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// index += lenOfPPS
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// }
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//
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// return
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//}
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