Re: HD van KPN is geen HD
Geplaatst: 14 feb 2013 19:43
Beste BProsman en Ciske
Hier de bitrate specificatie van streaming video
aangezien KPN de MPEG4 AVC compressie gebruiken kunnen ze het af met een lager bitrate dan
de 1080i (25Mbit) maar dan nog moet deze rond de 15Mbit zijn 6/7 Mbit is gewoon te laag
http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC
Video
16 kbit/s – videophone quality (minimum necessary for a consumer-acceptable "talking head" picture using various video compression schemes)
128–384 kbit/s – business-oriented videoconferencing quality using video compression
1.5 Mbit/s max – VCD quality (using MPEG1 compression)[17]
3.5 Mbit/s typ — Standard-definition television quality (with bit-rate reduction from MPEG-2 compression)
9.8 Mbit/s max – DVD (using MPEG2 compression)[18]
15 Mbit/s typ – HDTV quality (with bit-rate reduction from MPEG-4 AVC compression)
19 Mbit/s approximate — HDV 720p (using MPEG2 compression)[19]
24 Mbit/s max — AVCHD (using MPEG4 AVC compression)[20]
25 Mbit/s approximate — HDV 1080i (using MPEG2 compression)[19]
29.4 Mbit/s max – HD DVD
40 Mbit/s max – Blu-ray Disc (using MPEG2, AVC or VC-1 compression)[21]
Hier de bitrate specificatie van streaming video
aangezien KPN de MPEG4 AVC compressie gebruiken kunnen ze het af met een lager bitrate dan
de 1080i (25Mbit) maar dan nog moet deze rond de 15Mbit zijn 6/7 Mbit is gewoon te laag
http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC
Video
16 kbit/s – videophone quality (minimum necessary for a consumer-acceptable "talking head" picture using various video compression schemes)
128–384 kbit/s – business-oriented videoconferencing quality using video compression
1.5 Mbit/s max – VCD quality (using MPEG1 compression)[17]
3.5 Mbit/s typ — Standard-definition television quality (with bit-rate reduction from MPEG-2 compression)
9.8 Mbit/s max – DVD (using MPEG2 compression)[18]
15 Mbit/s typ – HDTV quality (with bit-rate reduction from MPEG-4 AVC compression)
19 Mbit/s approximate — HDV 720p (using MPEG2 compression)[19]
24 Mbit/s max — AVCHD (using MPEG4 AVC compression)[20]
25 Mbit/s approximate — HDV 1080i (using MPEG2 compression)[19]
29.4 Mbit/s max – HD DVD
40 Mbit/s max – Blu-ray Disc (using MPEG2, AVC or VC-1 compression)[21]




