improve playlist guessing

index:  47 duration: 00:00:20 chapters:   3 angles:  1 clips:   3 (playlist: 00073.mpls) V:1 A:0  PG:0  IG:0  SV:0 SA:0
index:  48 duration: 01:37:58 chapters:  21 angles:  1 clips:   1 (playlist: 00800.mpls) V:1 A:10 PG:17 IG:0  SV:0 SA:0
	AUD: eng fra deu tur nld nld isl hrv heb eng 
	PG : eng fra deu tur nld isl hrv heb eng fra deu tur nld nld isl hrv heb 
index:  49 duration: 01:37:58 chapters:  21 angles:  1 clips:   1 (playlist: 00801.mpls) V:1 A:1  PG:1  IG:0  SV:0 SA:0
	AUD: fra 
	PG : fra 

added 58 commits

• 966778b8...1e6d7d2c - 56 commits from branch videolan:master
• d3c9dc28 - Read 3D baseview indicator
• cef941eb - improve main playlist guess

Compare with previous version

added 2 commits

• da96b13e - 1 commit from branch videolan:master
• 03d9f3aa - Read 3D baseview indicator

Compare with previous version

closed

Change "cef941eb - improve main playlist guess" merged into master