It is important to clarify a common mistake. When people see a file with a -.AVI extension, they immediately conclude that it is not a MPEG file. +.AVI extension, they immediately conclude that it is not an MPEG file. That is not true. At least not entirely. Contrary to popular belief such a file can contain MPEG1 video.
-You see, a codec is not the same as a file format.
-Video codecs are: MPEG1, MPEG2, DivX, Indeo5, 3ivx.
-Video formats are: MPG, AVI, ASF.
+
You see, a video codec is not the same as a video format.
+Examples of video codecs are: MPEG1, MPEG2, DivX, Indeo5, 3ivx.
+Examples of video formats are: MPG, AVI, ASF.
In theory, you can happily put an OpenDivX video and MP3 audio -into a MPG format file. Most players will not play it, though, since -they expect MPEG1 video and MP2 audio (.MPG does not have the -necessary fields to describe its video and audio streams, like .AVI -does). Or you might put MPEG1 video into an .AVI file. FFmpeg +
In theory, you can put an OpenDivX video and MP3 audio +into an MPG format file. However, most players will not play it, since +they expect MPEG1 video and MP2 audio (unlike AVI, MPG does not have the +necessary fields to describe its video and audio streams). +Or you might put MPEG1 video into an AVI file. FFmpeg and MEncoder can create these files.
-In contrast to that audio codecs and audio formats are basically the same terms.
+In contrast to that audio codecs and audio formats mean the same thing.
@@ -91,7 +91,8 @@MPlayer supports two kinds of timings for AVI files:
These are from the Macintosh. They usually have a .QT or .MOV extension. Note +
These formats were designed by Apple. They usually have a .QT or .MOV extension. Note
that since the MPEG4 group chose QuickTime as the recommended file format
-for MPEG4, their .MOV files come with a .MPG or .MP4 extension (Interestingly
-the video and audio streams in these files are real .MPG and .AAC files. With the
+for MPEG4, their MOV files come with a .MPG or .MP4 extension (Interestingly
+the video and audio streams in these files are real MPG and AAC files. With the
-dumpvideo/-dumpaudio options you can even extract them!).
Codecs: Any codec is allowed, both CBR and VBR. Note: most new QuickTime files use -Sorensen video and QDesign Music audio. These formats are completely -secret, and only Apple's QuickTime player is able to play these files (on -win/mac only).
+Sorensen video and QDesign Music audio. These formats have not been +disclosed and will probably remain so in the future, making Apple's QuickTime +player the only player able to play these files (on Windows/Mac OS only). - +MPlayer happily demuxes VIVO file formats. The biggest disadvantage of the format is that it has no index block, nor a fixed packet size or sync bytes @@ -169,7 +170,7 @@
NuppelVideo
-is a TV grabber tool (AFAIK:). MPlayer can read its .nuv
+is a TV grabber tool (AFAIK:). MPlayer can read its .NUV
files (only NuppelVideo 5.0). Those files can contain uncompressed YV12,
YV12+RTJpeg compressed, YV12 RTJpeg+lzo compressed, and YV12+lzo compressed
frames. MPlayer decodes (and also encodes them with MEncoder to