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author | diego <diego@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2005-05-16 09:52:52 +0000 |
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committer | diego <diego@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2005-05-16 09:52:52 +0000 |
commit | 3e739b70b21abcb2091aa3b5db2a30f857bbbe3f (patch) | |
tree | 2e74bada2784f90b99e8a4b65a8bdf44ed95107b /DOCS/xml | |
parent | eaa8e3bcb63facd521bf2b5c76829a8d8c39050c (diff) | |
download | mpv-3e739b70b21abcb2091aa3b5db2a30f857bbbe3f.tar.bz2 mpv-3e739b70b21abcb2091aa3b5db2a30f857bbbe3f.tar.xz |
Fix imprecise fps numbers, patch by Corey Hickey <bugfood-ml at fatooh dot org>.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15488 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'DOCS/xml')
-rw-r--r-- | DOCS/xml/en/mencoder.xml | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/DOCS/xml/en/mencoder.xml b/DOCS/xml/en/mencoder.xml index 09f573f669..7c0baf1428 100644 --- a/DOCS/xml/en/mencoder.xml +++ b/DOCS/xml/en/mencoder.xml @@ -571,7 +571,7 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37, </para></listitem> <listitem><para> <emphasis role="bold">NTSC Video</emphasis>: Recorded with an - NTSC video camera at 59.94 fields per second, or 60 fields per + NTSC video camera at 60000/1001 fields per second, or 60 fields per second in the pre-color era. Otherwise similar to PAL. </para></listitem> @@ -581,7 +581,7 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37, </para></listitem> <listitem><para> <emphasis role="bold">Computer Graphics (CG)</emphasis>: Can be - any framerate, but some are more common than others; 23 and + any framerate, but some are more common than others; 24 and 30 frames per second are typical for NTSC, and 25fps is typical for PAL. </para></listitem> @@ -643,7 +643,7 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37, shown alternately for the duration of 3 fields or 2 fields. This gives a fieldrate 2.5 times the original framerate. The result is also slowed down very slightly from 60 fields per - second to 59.94 fields per second to maintain NTSC fieldrate. + second to 60000/1001 fields per second to maintain NTSC fieldrate. </para></listitem> <listitem><para> <emphasis role="bold">NTSC 2:2 pulldown</emphasis>: Used for @@ -692,29 +692,29 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37, <title>NTSC regions:</title> <listitem><para> If <application>MPlayer</application> prints that the framerate - has changed to 23.976 when watching your movie, and never changes - back, it is almost certainly 24fps content that has been + has changed to 24000/1001 when watching your movie, and never changes + back, it is almost certainly progressive content that has been "soft telecined". </para></listitem> <listitem><para> If <application>MPlayer</application> shows the framerate - switching back and forth between 23.976 and 29.97, and you see + switching back and forth between 24000/1001 and 30000/1001, and you see "combing" at times, then there are several possibilities. - The 23.976 fps segments are almost certainly 24fps progressive - content, "soft telecined", but the 29.97 fps parts could be - either hard-telecined 24fps content or NTSC video content. + The 24000/1001 fps segments are almost certainly progressive + content, "soft telecined", but the 30000/1001 fps parts could be + either hard-telecined 24000/1001 fps content or 60000/1001 fields per second NTSC video. Use the same guidelines as the following two cases to determine which. </para></listitem> <listitem><para> If <application>MPlayer</application> never shows the framerate changing, and every single frame with motion appears combed, your - movie is NTSC video at 59.94 fields per second. + movie is NTSC video at 60000/1001 fields per second. </para></listitem> <listitem><para> If <application>MPlayer</application> never shows the framerate changing, and two frames out of every five appear combed, your - movie is "hard telecined" 24fps content. + movie is "hard telecined" 24000/1001fps content. </para></listitem> </itemizedlist> @@ -1610,8 +1610,8 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37, deinterlace or not. While deinterlacing will make your movie usable on progressive scan displays such a computer monitors and projectors, it comes - at a cost: The fieldrate of 50 or 59.94 fields per second - is halved to 25 or 29.97 frames per second, and roughly half of + at a cost: The fieldrate of 50 or 60000/1001 fields per second + is halved to 25 or 30000/1001 frames per second, and roughly half of the information in your movie will be lost during scenes with significant motion. </para> @@ -1622,7 +1622,7 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37, You can always deinterlace the movie at playback time when displaying it on progressive scan devices, and future players will be able to deinterlace to full fieldrate, interpolating 50 or - 59.94 entire frames per second from the interlaced video. + 60000/1001 entire frames per second from the interlaced video. </para> <para> |