home *** CD-ROM | disk | FTP | other *** search
-
-
-
- MMMMPPPPEEEEGGGG____PPPPLLLLAAAAYYYY((((1111)))) UUUUNNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV ((((22227777 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) MMMMPPPPEEEEGGGG____PPPPLLLLAAAAYYYY((((1111))))
-
-
-
- NNNNAAAAMMMMEEEE
- mpeg_play - plays mpeg-1 encoded bitstreams using X11
-
- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- mmmmppppeeeegggg____ppppllllaaaayyyy [ ----nnnnoooobbbb ] [ ----nnnnoooopppp ] [ [ ----ddddiiiissssppppllllaaaayyyy ddddiiiissssppppllllaaaayyyy____nnnnaaaammmmeeee ] [ ----
- ddddiiiitttthhhheeeerrrr ddddiiiitttthhhheeeerrrr____ooooppppttttiiiioooonnnn ] [ ----lllloooooooopppp ] [ ----eeeeaaaacccchhhhssssttttaaaatttt ] [ ----nnnnoooo____ddddiiiissssppppllllaaaayyyy
- ] [ ----sssshhhhmmmmeeeemmmm____ooooffffffff ] [ ----llll____rrrraaaannnnggggeeee nnnnuuuummmm ] [ ----ccccrrrr____rrrraaaannnnggggeeee nnnnuuuummmm ] [ ----
- ccccbbbb____rrrraaaannnnggggeeee nnnnuuuummmm ] [ ----qqqquuuuiiiieeeetttt ] ffffiiiilllleeee____nnnnaaaammmmeeee
-
- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- mmmmppppeeeegggg____ppppllllaaaayyyy decodes and displays mpeg-1 encoded bitstreams on
- systems running X11. The player will create a new window,
- display the bitstream, and exit. Any error messages or
- notices are sent to stderr.
-
- OOOOPPPPTTTTIIIIOOOONNNNSSSS
- ----nnnnoooobbbb : causes the player to ignore and not display any B
- frames.
-
- ----nnnnoooopppp : causes the player to ignore and not display any P
- frames.
-
- ----ddddiiiissssppppllllaaaayyyy ddddiiiissssppppllllaaaayyyy____nnnnaaaammmmeeee : causes the player to open the window
- on the display _d_i_s_p_l_a_y__n_a_m_e.
-
- ----ddddiiiitttthhhheeeerrrr ddddiiiitttthhhheeeerrrr____ooooppppttttiiiioooonnnn : selects from a variety of dither
- options. The possible values are:
-
- ordered - ordered dither.
-
- ordered2 - a faster ordered dither. This is the
- default.
-
- mbordered - ordered dithering at the macroblock level.
- Although there is a noticeable decrease in dither
- quality, this is the fastest dither available.
-
- fs4 - Floyd-Steinberg dithering with 4 error values
- propogated.
-
- fs2 - Floyd-Steinberg dithering with 2 error values
- propogated.
-
- fs2fast - Fast Floyd-Steinberg dithering with 2 error
- values propogated.
-
- hybrid - Hybrid dithering, a combination of ordered
- dithering for the luminance channel and Floyd-
- Steinberg 2 error dithering for the chrominance
- channels. Errors are NOT propogated properly and
- are dropped all togethor every two pixels in
- either direction.
-
-
-
- Page 1 (printed 3/9/94)
-
-
-
-
-
-
- MMMMPPPPEEEEGGGG____PPPPLLLLAAAAYYYY((((1111)))) UUUUNNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV ((((22227777 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) MMMMPPPPEEEEGGGG____PPPPLLLLAAAAYYYY((((1111))))
-
-
-
- hybrid2 - Hybrid dithering as above, but with error
- propogation among pixels.
-
- 2x2 - A dithering technique using a 2x2 pixel area for
- each pixel. The image displayed is 4 times larger
- than the original image encoded. Random error
- terms are added to each pixel to break up contours
- and gradients.
-
- gray - Grayscale dithering. The image is dithered into
- 128 grayscales. Chrominance information is thrown
- away.
-
- color - Full color display (only available on 24 bit
- color displays).
-
- none - no dithering is done, no image is displayed.
- Used to time decoding process.
-
- mono - Floyd-Steinberg dithering for monochrome
- displays.
-
- threshold - Floyd-simple dithering for monochrome
- displays.
-
- ----lllloooooooopppp : makes the player loop back to the beginning after
- reaching the end.
-
- -quiet : supresses printing of frame numbers, timing
- information, and most error messages.
-
- -eachstat : causes statistics to be displayed after each
- frame. Only valid when compiled with -DANALYSIS.
-
- -shmem_off : turns shared memory off.
-
- ----llll____rrrraaaannnnggggeeee nnnnuuuummmm____ccccoooolllloooorrrrssss : sets the number of colors assigned to
- the luminance component when dithering the image. The
- product of l_range, cr_range and cb_range should be
- less than the number of colors on the display.
-
- ----ccccrrrr____rrrraaaannnnggggeeee nnnnuuuummmm____ccccoooolllloooorrrrssss : sets the number of colors assigned to
- the red component of the chrominace range when
- dithering the image. The product of l_range, cr_range
- and cb_range should be less than the number of colors
- on the display.
-
- ----ccccbbbb____rrrraaaannnnggggeeee nnnnuuuummmm____ccccoooolllloooorrrrssss : sets the number of colors assigned to
- the blue component of the chrominace range when
- dithering the image. The product of l_range, cr_range
- and cb_range should be less than the number of colors
- on the display.
-
-
-
- Page 2 (printed 3/9/94)
-
-
-
-
-
-
- MMMMPPPPEEEEGGGG____PPPPLLLLAAAAYYYY((((1111)))) UUUUNNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV ((((22227777 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) MMMMPPPPEEEEGGGG____PPPPLLLLAAAAYYYY((((1111))))
-
-
-
- -no_display : dithers, but does not display, usually used
- for testing and timing purposes.
-
- NNNNOOOOTTTTEEEESSSS
- The player expects MPEG-1 video streams only. It can not
- handle multiplexed MPEG streams or video+audio streams. The
- player uses the paris entropy coding table set (which we
- believe to be the MPEG-1 standard), but can not handle any
- bitstreams that use the "berlin" entropy coding table set.
- Berlin data is relatively rare so there shouldn't be too
- much to worry about here, but be aware of the difference
- when looking for streams to play.
-
- Some streams do not end with the proper sequence end code
- and will probably generate an "Improper sequence end code."
- error when done playing.
-
- This player can play XING data files. Be aware that XING
- makes no use of temporal redundancy or motion vector
- information. In other words, they do not use any P or B
- frames in their streams. Instead, XING data is simply a
- sequence of I frames. Since I frames take significantly
- longer to decode, performance of the player using XING data
- is not representative of the player's ability.
-
- AAAAUUUUTTTTHHHHOOOORRRRSSSS
- Ketan Patel - University of California, Berkeley,
- kpatel@cs.berkeley.edu
-
- Brian Smith - University of California, Berkeley,
- bsmith@cs.berkeley.edu
-
- Henry Chi-To Ma - University of California, Berkeley,
- cma@cs.berkeley.edu
-
- Kim Man Liu - University of California, Berkeley,
- kliu@cs.berkeley.edu
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- Page 3 (printed 3/9/94)
-
-
-
-