[B! ffmpeg] a211chanã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

a211chan id:a211chan

ffmpegã«é–¢ã™ã‚‹a211chanã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (6)

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ffmpegã§å‹•ç”»ã‚’ã‚¿ã‚¤ãƒ«é…ç½®ã™ã‚‹ - Akionux-wiki
æ¦‚è¦ ffmpegã§è¤‡æ•°ã®å…¥åŠ›å‹•ç”»ã‚’ã‚¿ã‚¤ãƒ«çŠ¶ã«é…ç½®ã—ã¦å‡ºåŠ›ã™ã‚‹æ–¹æ³•ã‚’å…·ä½“ä¾‹ã§èª¬æ˜Žã™ã‚‹ã€‚ ä½¿ç”¨ä¾‹ æ¬¡ã®ã‚³ãƒžãƒ³ãƒ‰ã§ã¯ã€4ã¤ã®å…¥åŠ›å‹•ç”»(1.avi,2.avi,3.avi,4.avi)ã‚’å·¦ä¸Šã«1.aviã€å³ä¸Šã«2.aviã€å·¦ä¸‹ã«3.aviã€å³ä¸‹ã«4.aviã®é…ç½®ã§ã‚¿ã‚¤ãƒ«ä¸Šã«ä¸¦ã¹ãŸå‹•ç”»ã‚’output.mkvã¨ã—ã¦å‡ºåŠ›ã™ã‚‹[1]ã€‚ ffmpeg -i 1.avi -i 2.avi -i 3.avi -i 4.avi -filter_complex " nullsrc=size=640x480 [base]; [0:v] setpts=PTS-STARTPTS, scale=320x240 [upperleft]; [1:v] setpts=PTS-STARTPTS, scale=320x240 [upperright]; [2:v] setpts=PTS-STARTPTS, scale=320x24
a211chan 2020/01/08
ffmpeg

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FFmpegã§å‹•ç”»ã«å—å¹•ãƒ»å‰¯éŸ³å£°ã‚’è¿½åŠ ã™ã‚‹ | DevelopersIO
å‹•ç”»ã«å¯¾ã—ã¦ å¤šè¨€èªžå¯¾å¿œã—ãŸå—å¹• å¤šè¨€èªžå¯¾å¿œã—ãŸå‰¯éŸ³å£° ã‚’è¿½åŠ ã™ã‚‹æ–¹æ³•ã‚’ç´¹ä»‹ã—ã¾ã™ã€‚ ä½œæ¥ã«ã‚ãŸã‚Šã€Linuxç’°å¢ƒã§FFmpegã‚’åˆ©ç”¨ã—ã¾ã™ã€‚ å½“æ–¹ã¯FFMpegã®ã‚¨ã‚ã‚¹ãƒ‘ãƒ¼ãƒˆã§ã¯ãªãã€FFMpegã®ä¸€éƒ¨ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã¯é›°å›²æ°—ã§æŒ‡å®šã—ã¦ã„ã‚‹ã¨ã“ã‚ã‚‚ã‚ã‚‹ãŸã‚ã€é–“é•ã„ã‚„æ”¹å–„ç‚¹ãŒã‚ã‚Œã°ã€ã”æŒ‡æ‘˜ã„ãŸã ã‘ã‚Œã°ã¨æ€ã„ã¾ã™ã€‚ å‰æ ä½œæ¥ç’°å¢ƒ OS : Ubuntu Linux : 18.04 AWS EC2 ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ AMI ID : ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20180912 ãƒžãƒ«ãƒãƒ¡ãƒ‡ã‚£ã‚¢ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆ å…¥åŠ›å‹•ç”»ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆ : mp4 å‡ºåŠ›å‹•ç”»ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆ : mkv(Matroska) ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«(Linuxå‘ã‘) FFmpeg ImageMagick ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¾ã™ã€‚ $ sudo apt update
a211chan 2019/12/18
ffmpeg

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GitHub - jrottenberg/ffmpeg: Docker build for FFmpeg on Ubuntu / Alpine / Centos / Scratch / nvidia / vaapi
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a211chan 2019/11/01
ffmpeg

docker
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a211chan 2019/10/03
h.264

ffmpeg
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GOPé–¢é€£ã‚’ãŠã‚ãã‹ã«ã—ãŸx264ã¯Xvidã«ã‚‚åŠ£ã‚‹ã€‚ã€€ageha was here
2007/11/15ã‚’ä»¥ã¦å½“ãƒ–ãƒã‚°ã¯æ›´æ–°ã‚’åœæ¢ã—ã¾ã—ãŸã€‚è¨˜äº‹ã¯å…¨ã¦ã“ã®ã¾ã¾ã§ã™ãŒã€åŸºæœ¬çš„ã«å†…å®¹ã¯Out of dateã¨ãŠè€ƒãˆä¸‹ã•ã„ã€‚ ï¼‘.Â IãŒå¤šã„ã»ã©ç©º é–“è»¸ç”»è³ªãŒè‰¯ã„ã€‚ã—ã‹ã—ã€Iã¯å·¨å¤§ã ã€‚ x264 [info]: slice I: 490 Avg QP:19.21 size: 24682 PSNR Mean Y:47.78 U:49.86 V:51.00 Avg:48.38 Global:47.57 x264 [info]: slice P:15350 Avg QP:21.01 size: 8706 PSNR Mean Y:45.88 U:48.60 V:49.90 Avg:46.69 Global:45.88 x264 [info]: slice B:18195 Avg QP:21.47 size: 1979 PSNR Mean Y:45.94 U:48.79 V:50.08 A
a211chan 2019/10/03
gop

encode

ffmpeg
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a211chan 2019/10/03
ffmpeg

gop

x264
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