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Diffstat (limited to 'DOCS')
-rw-r--r-- | DOCS/formats.html | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/DOCS/formats.html b/DOCS/formats.html index fad9c4a3d9..f1d504e5fb 100644 --- a/DOCS/formats.html +++ b/DOCS/formats.html @@ -49,7 +49,7 @@ the DAT files can't be played nor copied from VCDs. You have to use the <CODE>-vcd</CODE> option to play the VideoCD.</LI> <LI>VOB : this is the MPEG file format on <B>DVD</B>s. The same as MPG, plus capability to contain subtitles, or non-MPEG (AC3) audio. Contains encoded MPEG2 -video, and usually AC3 audio, but MP2 is allowed too.<BR> +video, and usually AC3 audio, but DTS, MP2 and uncompressed LPCM are allowed too.<BR> <B>Read the <A HREF="cd-dvd.html#4.2">DVD section</A> !</B></LI> </P> @@ -61,7 +61,7 @@ standard file-tools (like dd, cut), and it remains completely functional.</P> the aspect ratio of the video stream within. For example SVCDs have 480x480 resolution video, and in the header that field is set to 4:3, so it's played at 640x480. AVI files don't have this field, so one has to -rescale it during encoding.</P> +rescale it during encoding or use option -aspect at playback.</P> <P><B><A NAME=2.1.1.2>2.1.1.2. AVI files</A></B></P> @@ -69,7 +69,7 @@ rescale it during encoding.</P> <P>Designed by Micro$oft, the <B>AVI (Audio Video Interleaved)</B> is a widespread multipurpose format, currently used mostly for DivX and DivX4 videos. Has many known drawbacks, and inabilities (for example in streaming). -Has support for one video stream, and 99 audio streams. Can be as big as +Has support for one video stream, and 0 to 99 audio streams. Can be as big as 2Gb. There exists an extension for it to be bigger, called <B>OpenDMS</B>. M$ currently strongly discourages its use and propagates ASF/WMV. Not if anybody cares.<BR> @@ -180,8 +180,10 @@ DivX/etc!) them all. Seeking is under implementation.</P> <P><B><A NAME=2.1.1.9>2.1.1.9. yuv4mpeg files</A></B></P> <P><A HREF="http://mjpeg.sourceforge.net">yuv4mpeg / yuv4mpeg2</A> is -also a fileformat for TV grabbing, or so :) I know only one thing about it: -we support it.</P> +a fileformat used by <A HREF="http://mjpeg.sf.net">mjpegtools programs</A>. +You can grab, produce, filter or encode video in this format using these. +The file is really a sequence of uncompressed YUV 4:2:0 images. +</P> <P><B><A NAME=2.1.1.10>2.1.1.10. FILM files</A></B></P> |