https://bugzilla.wikimedia.org/show_bug.cgi?id=29181
Derk-Jan Hartman <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #5 from Derk-Jan Hartman <[email protected]> 2011-05-28 15:28:23 UTC --- 1088 is rather common, but wrong. All movies that produce 1088 SHOULD also have metadata that defines that their Display box should be 1920x1080 (cropped image of the recording basically). If they don't than issues such as you describe are simply expected behavior. So what youtube does with some uncommon source material: Youtube with 2.39:1 1920x800 source material http://www.youtube.com/watch?v=O574YXXSTb0 Their 1080p of this movie is: main debug: pic render sz 1920x800, of (0,0), vsz 1920x800, 4cc I420, sar 1:1, msk r0x0 g0x0 b0x0 main debug: pic in sz 1920x800, of (0,0), vsz 1920x800, 4cc I420, sar 1:1, msk r0x0 g0x0 b0x0 main debug: pic out sz 1920x800, of (0,0), vsz 1920x800, 4cc UYVY, sar 1:1, msk r0x0 g0x0 b0x0 It is rendered boxed in a 16:9 frame HD 1080p (16:9)== 1920x1080 HD 1080p (2.39:1) == 1920x800 (actual factor is 2.40:1, due to rounding) So this was kept 'as is' Youtube with 1440x608, 2.35:1 source material http://www.youtube.com/watch?v=RYX4aXyqx4g This qualifies as a weird format. actual 2.35 would have been 612 pixels high, so i'm guessing this was cropped down to 608 in order to be 16 pixel compatible Their 720p of this movie is: main debug: pic render sz 1280x540, of (0,0), vsz 1280x540, 4cc I420, sar 1:1, msk r0x0 g0x0 b0x0 main debug: pic in sz 1280x540, of (0,0), vsz 1280x540, 4cc I420, sar 1:1, msk r0x0 g0x0 b0x0 main debug: pic out sz 1280x540, of (0,0), vsz 1280x540, 4cc UYVY, sar 1:1, msk r0x0 g0x0 b0x0 It is rendered as boxed in a 16:9 frame. HD (720p) == 1280x720 actual DAR of produced image is 2.37:1 But clearly, 720p is not always 720 lines. It is always 1280 columns, with the DAR of the source video. So their conversion targets are the bounding boxes of 16:9 1080p/720p/480p/360p/240p video frame sizes, keeping the source display aspect ratio intact. -- Configure bugmail: https://bugzilla.wikimedia.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. _______________________________________________ Wikibugs-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
