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x264 revision 551 - h.264(AVC) ÀÎÄÚ´õ

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Á¶È¸ : 1728  ´Ù¿î·Îµå : 2
ÀÛ¼ºÀÏ : 2006/08/06 19:17
°£Æí URL : http://www.bodnara.co.kr/bbs/bbs.html?D=8&num=83415
       ÃÊ°í¼Ó 100Mb ´Ù¿î ´Ù¿î·Îµå¸µÅ© º¹»ç Æ®À§ÅÍ    ÆäÀ̽ººÏ

±¸±Û Å©·Ò¿¡¼­´Â ´Ù¿î·Îµå¹öÆ°ÀÌ ÀÛµ¿ÇÏÁö ¾ÊÀ¸´Ï, ¿§Áö/ÀͽºÇ÷η¯ µî ´Ù¸¥ºê¶ó¿ìÀú¸¦ »ç¿ëÇϼ¼¿ä
´Ù¸¥ AVCÀÎÄÚ´õÀÎ ateme, elecard¿Í ÇÔ²² ¿ë·® ´ëºñ È­ÁúÀÌ °¡Àå ¶Ù¾î³­ ºñµð¿À ÀÎÄÚ´õÀÔ´Ï´Ù.
¾ÐÃàÆÄÀÏ ¾È¿¡´Â Ä¿¸Çµå¶óÀÎ ½ÇÇàÆÄÀÏ(x264.exe)¸¸ µé¾î ÀÖ½À´Ï´Ù.
(ffdshow·Î h.264µ¿¿µ»óÀ» Àç»ýÇÒ ¶§´Â ¹Ýµå½Ã ffdshowÀÇ postprocessing(ÈÄó¸®)À» ²¨¾ß ÇÕ´Ï´Ù. ±×·¸Áö ¾ÊÀ¸¸é ¾öû³­ È­ÁúÀúÇÏ°¡...)

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r551 | pengvado | 2006-08-04 05:12:43 +0200 (Fri, 04 Aug 2006) | 2 lines
gcc -fprofile-generate isn't threadsafe
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r550 | pengvado | 2006-08-03 21:49:17 +0200 (Thu, 03 Aug 2006) | 2 lines
cli: move some options from --help to --longhelp
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r549 | pengvado | 2006-08-03 20:22:08 +0200 (Thu, 03 Aug 2006) | 2 lines
cli: don't try to get resolution from filename unless input is rawyuv
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r548 | pengvado | 2006-08-03 20:13:56 +0200 (Thu, 03 Aug 2006) | 2 lines
r542 broke --visualize
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r547 | titer | 2006-08-02 20:11:21 +0200 (Wed, 02 Aug 2006) | 2 lines
Nicer OS X x264_cpu_num_processors (thanks David)
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r546 | titer | 2006-08-01 17:20:35 +0200 (Tue, 01 Aug 2006) | 2 lines
Support OS X and BeOS in x264_cpu_num_processors
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r545 | titer | 2006-08-01 17:18:31 +0200 (Tue, 01 Aug 2006) | 2 lines
Fixes contexts allocation with threads=auto
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r544 | pengvado | 2006-08-01 04:22:36 +0200 (Tue, 01 Aug 2006) | 2 lines
select initial qp for abr and cbr baased on satd and bitrate, rather than cq24.
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r543 | pengvado | 2006-08-01 02:17:18 +0200 (Tue, 01 Aug 2006) | 2 lines
--threads=auto to detect number of cpus
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r542 | pengvado | 2006-07-31 23:59:04 +0200 (Mon, 31 Jul 2006) | 2 lines
api addition: x264_param_parse() to set options by name
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r541 | pengvado | 2006-07-31 08:34:53 +0200 (Mon, 31 Jul 2006) | 2 lines
fix a rare NaN in ratecontrol
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r540 | pengvado | 2006-07-30 04:39:05 +0200 (Sun, 30 Jul 2006) | 2 lines
move quant_mf[] from x264_t to the heap, and merge duplicate entries
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r539 | pengvado | 2006-07-28 23:39:07 +0200 (Fri, 28 Jul 2006) | 11 lines
GTK update. patch by Vincent Torri.
fixed:
cleaning of Makefile
time elapsed seems broken ('total time' label replaced by 'time remaining')
text entries of the status window are now not editable
added:
compilation from x264/ (add --enable-gtk option to configure)
shared lib creation if --enable-shared is passed to configure
x264gtk.pc
--b-rdo, --no-dct-decimate
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r538 | pengvado | 2006-07-23 21:19:40 +0200 (Sun, 23 Jul 2006) | 3 lines
new option: --qpfile forces frames types and QPs.
(intended for ratecontrol experiments, not for real encodes)

[ (Ä¿¸Çµå¶óÀÎ) x264ÀÎÄÚµùÀÇ °£´ÜÇÑ ¿¹¿Í ¼³¸í ]

start /BELOWNORMAL x264.exe --pass 1 --qp 20 -o "Ãâ·ÂÆÄÀÏ.mkv" --min-keyint 1 --bframes 16 --ref 15 --ipratio 1.0 --stats "x264.stats" --analyse "all" --8x8dct --weightb --me "umh" --subme 7 --b-rdo --mixed-refs --bime --no-fast-pskip --b-bias -5 --progress "ÀÔ·ÂÆÄÀÏ.avs"
(ÇÑ ÁÙ ÀÔ´Ï´Ù.)

- ÀÌ·± ±ä ¸í·É¹®Àº ¹èÄ¡ÆÄÀÏ¿¡ ³Ö¾î¾ß°ÚÁÒ.
- ¾Õ¿¡ ºÙÀº 'start /BELOWNORMAL'Àº ÀÛ¾÷ÀÇ ¿ì¼±¼øÀ§¸¦ ³·Ãß±â À§ÇÔÀÔ´Ï´Ù. ÀÎÄÚµù Áß¿¡ ´Ù¸¥ ÀÛ¾÷À» Çصµ ¹ö¹÷´ëÁö ¾Ê°Ô...
- ÀÔ·ÂÆÄÀÏ¿¡´Â avs(aviSynth script)ÆÄÀÏÀ̳ª aviÆÄÀÏÀÌ µé¾î°¥ ¼ö ÀÖ°í, mkv³ª mp4ÆÄÀÏÀ» Ãâ·ÂÇÒ ¼ö ÀÖ½À´Ï´Ù. ¹°·Ð, ÆÄÀÏÀ̸§µé¾Õ¿¡ µð·ºÅ丮 °æ·Î°¡ ¿Ã ¼ö ÀÖ½À´Ï´Ù.

- ÀÎÄÚµù½Ã°£º¸´Ù È­Áú¿¡ ÁßÁ¡À» µÎ°í ¿É¼ÇµéÀ» ¼³Á¤Çß½À´Ï´Ù.
- '--qp'¿É¼ÇÀ¸·Î È­ÁúÀ» °áÁ¤ÇÕ´Ï´Ù. °ªÀÌ ³·À»¼ö·Ï È­ÁúÀÌ ÁÁÁö¸¸ ÆÄÀÏÅ©±â´Â Ä¿Áý´Ï´Ù.

À§ÀÇ Ã¹¹ø° ÀÎÄÚµù(ù¹ø° Æнº)À¸·Î ³ª¿Â °á°ú¿¡ ¸¸Á·ÇÑ´Ù¸é °Å±â¼­ ÀÎÄÚµùÀº ³¡³³´Ï´Ù.
ÇÏÁö¸¸ Ãâ·ÂµÇ´Â ÆÄÀÏÀÇ Å©±â¸¦ Á¤ÇÏ°í ½Í´Ù¸é ÀÎÄÚµùÀ» ÇÑ ¹ø ´õ ÇØ¾ß ÇÕ´Ï´Ù.(µÎ¹ø° Æнº)

µÎ¹ø° Æнº¿¡¼­´Â, ¾Æ·¡ÀÇ µÎ °³ ¿É¼Ç¸¸ ¹Ù²ã¼­(³ª¸ÓÁö´Â °°°Ô) ½ÇÇàÇØ¾ß ÇÕ´Ï´Ù. ¹°·Ð Ãâ·ÂÆÄÀÏÀÇ À̸§Àº ¹Ù²ãµµ µË´Ï´Ù.
'--pass 1' --> '--pass 2'
'--qp Á¤¼ö°ª(value of quantizer)' --> '--bitrate Á¤¼ö°ª(´ÜÀ§:kbps)'

- '--bitrate'·Î ÆÄÀÏÅ©±â°¡ Á¤ÇØÁý´Ï´Ù. °ªÀÇ ´ÜÀ§´Â kbps( kilobit per second )Àε¥, ´ÙÀ½°ú °°ÀÌ °ªÀ» ±¸ÇÒ ¼ö ÀÖ½À´Ï´Ù.( 1kilobit=1000bit )
kbps°ª = ( ¿øÇÏ´ÂÆÄÀÏÅ©±â(Kbyte) * 1024 * 8 ) / ( 1000 * µ¿¿µ»óÀDZæÀÌ(½Ã°£ÀÇ ÃÊ´ÜÀ§) )
- ù¹ø° Æнº¿¡¼­ ¾ò¾îÁö´Â ½ºÅÈÆÄÀÏ(x264.stats)À» ¹ÙÅÁÀ¸·Î µÎ¹ø° Æнº°¡ ÀÌ·ç¾îÁý´Ï´Ù.
- µÎ¹ø° Æнº¿¡¼­´Â Ãß°¡·Î '--qcomp'¶ó´Â ¿É¼ÇÀ» ¾µ ¼ö ÀÖ½À´Ï´Ù. °ªÀÇ ¹üÀ§´Â 0.0 ~ 1.0 (µðÆúÆ®: 0.6)
°ªÀÌ Å¬ ¼ö·Ï, ¸ðµç ÇÁ·¹ÀÓµéÀÇ Ç°ÁúÀÌ ºñ½ÁÇØ Áý´Ï´Ù. '--qp'¸¦ »ç¿ëÇÑ Ã¹¹ø° ÆнºÃ³·³...
°ªÀÌ ÀÛÀ» ¼ö·Ï, ¿òÁ÷ÀÓÀÌ ¸¹Àº È­¸é(±¸°£)ÀÇ Ç°ÁúÀ» ¶³¾îÆ®·Á¼­ È®º¸ÇÑ ¿ë·®À¸·Î ¿òÁ÷ÀÓÀÌ ÀûÀº(Á¤ÀûÀÎ) È­¸é(±¸°£)ÀÇ Ç°ÁúÀ» Çâ»ó½Ãŵ´Ï´Ù.
¡¡ 3


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