temp commit for SegData changes

eth/types/segment.go

@@ -3,24 +3,24 @@ package types
 import (
 	"math/big"
 
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/crypto"
+	ethcommon "github.com/ethereum/go-ethereum/common"
+	"github.com/livepeer/go-livepeer/common"
+	ffmpeg "github.com/livepeer/lpms/ffmpeg"
 )
 
 type Segment struct {
 	StreamID              string
 	SegmentSequenceNumber *big.Int
-	DataHash              common.Hash
-}
-
-func (s *Segment) Hash() common.Hash {
-	return crypto.Keccak256Hash([]byte(s.StreamID), common.LeftPadBytes(s.SegmentSequenceNumber.Bytes(), 32), s.DataHash.Bytes())
+	DataHash              ethcommon.Hash
+	Profiles              []ffmpeg.VideoProfile
 }
 
 func (s *Segment) Flatten() []byte {
-	buf := make([]byte, len(s.StreamID)+32+len(s.DataHash.Bytes()))
+	buf := make([]byte, len(s.StreamID)+32+len(s.DataHash.Bytes())+len(s.Profiles))
 	i := copy(buf[0:], []byte(s.StreamID))
 	i += copy(buf[i:], common.LeftPadBytes(s.SegmentSequenceNumber.Bytes(), 32))
 	i += copy(buf[i:], s.DataHash.Bytes())
+	i += copy(buf[i:], common.ProfilesToTranscodeOpts(s.Profiles))
+
 	return buf
 }