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Re: xawtv: legal question



Hans de Goede wrote:
Dmitry Butskoy wrote:
    I'm going to package "xawtv"
    (A TV application for v4l compliant devices, was in Fedora until
    FC2, http://linux.bytesex.org/xawtv )

    Xawtv can record TV into raw or avi file, including formats:
          raw - single file, raw video data
            video formats:
              rgb     24 bit TrueColor (BE: rgb)   [raw]
              gray    8 bit StaticGray             [raw]
              422     16 bit YUV 4:2:2 (packed, YUYV) [raw]
              422p    16 bit YUV 4:2:2 (planar)    [raw]
              4mpeg   yuv4mpeg (mpeg2enc >= 1.6)   [yuv]
              4mpeg-o yuv4mpeg (old mpeg2enc)      [yuv]
            audio formats:
              mono8   8bit mono                    [wav]
              mono16  16bit mono (LE)              [wav]
              stereo  16bit stereo (LE)            [wav]

          avi - Microsoft AVI (RIFF) format
            video formats:
              rgb15   15 bit TrueColor (LE)        [avi]
              rgb24   24 bit TrueColor (LE: bgr)   [avi]
              mjpeg   MJPEG (AVI)                  [avi]
              jpeg    JPEG (JFIF)                  [avi]
            audio formats:
              mono8   8bit mono                    [avi]
              mono16  16bit mono (LE)              [avi]
              stereo  16bit stereo (LE)            [avi]
    It seems that "yuv4mpeg" is some kind of raw formats, but what
    about "mjpeg" (motion jpeg) in avi files? I've found that only
ffmpeg-based plugins can play it then...
the 2 4mpeg formats definetely are a patent problem,
Note, that "yuv4mpeg" is not "mpeg" itself, it is "for mpeg" (4mpeg). It is really a sequence of uncompressed YUV 4:2:0 images... IMHO it was designed to "prepare raw stream for mjpegtools".
mjpeg OTOH is fine.
Since it is just a sequence of jpeg images?
I don't know what the status as a container format is.
avi seems to be OK (already used in Core's dvgrab and Extras' xine-lib )


But to be sure, could anyone confirm these my assumptions? :)


~buc


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