HEIC support
[000061400007d900] mp4 stream debug: | + ftyp size 36 offset 0
[000061400007d900] mp4 stream debug: | + meta size 305 offset 36
[000061400007d900] mp4 stream debug: | | + hdlr size 33 offset 48
[000061400007d900] mp4 stream debug: | + moov size 731 offset 341
[000061400007d900] mp4 stream debug: | | + mvhd size 108 offset 349
[000061400007d900] mp4 stream debug: | | + trak size 615 offset 457
[000061400007d900] mp4 stream debug: | | | + tkhd size 92 offset 465
[000061400007d900] mp4 stream debug: | | | + mdia size 515 offset 557
[000061400007d900] mp4 stream debug: | | | | + mdhd size 32 offset 565
[000061400007d900] mp4 stream debug: | | | | + hdlr size 33 offset 597
[000061400007d900] mp4 stream debug: | | | | + minf size 442 offset 630
[000061400007d900] mp4 stream debug: | | | | | + vmhd size 20 offset 638
[000061400007d900] mp4 stream debug: | | | | | + dinf size 36 offset 658
[000061400007d900] mp4 stream debug: | | | | | | + dref size 28 offset 666
[000061400007d900] mp4 stream debug: | | | | | | | + url size 12 offset 682
[000061400007d900] mp4 stream debug: | | | | | + stbl size 378 offset 694
[000061400007d900] mp4 stream debug: | | | | | | + stsd size 226 offset 702
[000061400007d900] mp4 stream debug: | | | | | | | + hvc1 size 210 offset 718
[000061400007d900] mp4 stream debug: | | | | | | | | + hvcC size 108 offset 804
[000061400007d900] mp4 stream debug: | | | | | | | | + ccst size 16 offset 912 (????)
[000061400007d900] mp4 stream debug: | | | | | | + stts size 24 offset 928
[000061400007d900] mp4 stream debug: | | | | | | + stsc size 28 offset 952
[000061400007d900] mp4 stream debug: | | | | | | + stco size 20 offset 980
[000061400007d900] mp4 stream debug: | | | | | | + stsz size 52 offset 1000
[000061400007d900] mp4 stream debug: | | | | | | + stss size 20 offset 1052
[000061400007d900] mp4 stream debug: | + mdat size 111620 offset 1072
[000061400007d900] mp4 stream debug: | + mdat size 893103 offset 112692
[000061400007d900] mp4 stream debug: | + mdat size 16 offset 1005795
https://github.com/nokiatech/heif_conformance/tree/master/conformance_files
HEVC encoded samples, pict handler with custom samples atom