{"id":4207,"date":"2011-05-18T10:11:27","date_gmt":"2011-05-18T08:11:27","guid":{"rendered":"http:\/\/lukse.lt\/uzrasai\/?p=4207"},"modified":"2015-05-20T08:36:18","modified_gmt":"2015-05-20T06:36:18","slug":"video-failu-konvertavimas","status":"publish","type":"post","link":"https:\/\/lukse.lt\/uzrasai\/2011-05-video-failu-konvertavimas\/","title":{"rendered":"Video fail\u0173 konvertavimas (praktiniai ffmpeg pavyzd\u017eiai)"},"content":{"rendered":"

\"\"Paie\u0161kos sistemose suformavus u\u017eklaus\u0105 apie video fail\u0173 konvertavim\u0105 parodoma daugyb\u0117 “bog\u016bj\u0173” rezulat\u0173. Tai komerciniai produktai ir “nemokamas” \u0161lam\u0161tas, kuris priter\u0161ia kompiuter\u012f ir gal\u0173 gale vistiek pra\u0161o b\u016bti nupirktas. Taigi, nepilstydamas i\u0161 tu\u0161\u010dio \u012f kiaur\u0105 papasakosiu apie \u012frank\u012f, kur\u012f jau senai naudoju – ffmpeg<\/a> (windows naujausi atsisiuntimai<\/a> arba lokali kopija<\/a>). Pradedan\u010diajam \u0161is \u012frankis gali nelabai patikti, nes jis neturi gra\u017eaus apipavidalinimo – tik komandin\u0119 eilut\u0119, ta\u010diau jis dirba nepriekai\u0161tingai ir labai tapydamas laik\u0105. Jei kas nuspr\u0119s, jog komandin\u0117 eilute baisus dalykas, galima naudotis WinFF<\/a> – tai \u0161ios programos grafinis apipavidalinimas.<\/p>\n

<\/p>\n

Kadangi rakt\u0173 ir parametr\u0173 ffmpeg turi labai daug, pateiksiu kelis pavyzd\u017eius kaip galima naudoti:<\/p>\n

 <\/p>\n

1. Automatinis visu MOV fail\u0173 kataloge konvertavimas. Kadangi yra tokie failai kaip MOV, kurie nei Windows nei Mac sistemoje neveikia taip kaip nor\u0117t\u016bsi, juos reikia konvertuoti i AVI. Labai praver\u010dia failams i\u0161 automobilin\u0117s kameros konvertuoti.<\/p>\n

for \/r %%x in (*.MOV) do ffmpeg -i \"%%x\" -vtag DIVX -f avi -vcodec mpeg4 -aspect 16:9 -s 1280x720\u00a0 -b 5000000 \"%%x.avi\"<\/pre>\n
2. Kiekvieno AVI failo kadro i\u0161saugojimas JPG nuotraukom.<\/p>\n
ffmpeg -i video.avi image%04d.jpg<\/pre>\n
ffmpeg -vcodec mjpeg -qscale 1 -i video.avi image%04d.jpg<\/pre>\n
3.\u00a0 JPG nuotrauk\u0173 sujungimas \u012f AVI fail\u0105.<\/p>\n
ffmpeg -f image2 -i image%d.jpg video.avi<\/pre>\n
4. Informacija apie video faila<\/p>\n
ffmpeg -i video.avi<\/pre>\n
5. I\u0161 video failo i\u0161traukti gars\u0105<\/p>\n
ffmpeg -i video.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 audio.mp3<\/pre>\n
6. Konvertuoti AVI fail\u0105 \u012f animuot\u0105 GIF<\/p>\n
ffmpeg -i video.avi video.gif<\/pre>\n
7. \u012e video fail\u0105 \u012fterpti nauj\u0105 audio takel\u012f<\/p>\n
ffmpeg -i audio.wav -i video_original.avi video.avi<\/pre>\n
8. I\u0161 audio failo i\u0161kirpti atkarp\u0105<\/p>\n
ffmpeg -ss 00:00:10 -t 15 -i inout.mp3 -acodec copy output.mp3<\/pre>\n
9. Konvertuoti FLV i AVI<\/p>\n
ffmpeg -i video.flv -ab 56 -ar 22050 -b 500 -s 320x240 video.avi<\/code><\/pre>\n
10. Palaikomi formatai.<\/p>\n
ffmpeg -formats<\/pre>\n
11. Pakeisti video failo FPS ir i\u0161saugoti suma\u017eint\u0105 JPG fail\u0173 sek\u0105 (time-lapse gamyba).<\/p>\n
ffmpeg -i video.avi -r 1\/10 -s 320x240 image_%04d.jpg<\/pre>\n
12. I\u0161saugoti suma\u017eint\u0105 kadra i\u0161 10’tos sekund\u0117s (thumbnail gamyba).<\/p>\n
ffmpeg -i video.avi -vframes 1 -s 320x240 -ss 10 thumb.jpg<\/pre>\n
13. Sujungti atskiras nuotraukas \u012f MJPEG.<\/p>\n
ffmpeg -r 6 -i \"%04d.jpg\" -an -vcodec copy out.avi<\/pre>\n
14. Video failo garso takelio konvevimas i MP3 fail\u0105.<\/p>\n
ffmpeg -i video.mp4 -b:a 192K -vn music.mp3<\/pre>\n
I\u0161samus ffmpeg apra\u0161ymas yra \u010dia<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Paie\u0161kos sistemose suformavus u\u017eklaus\u0105 apie video fail\u0173 konvertavim\u0105 parodoma daugyb\u0117 “bog\u016bj\u0173” rezulat\u0173. Tai komerciniai produktai ir “nemokamas” \u0161lam\u0161tas, kuris priter\u0161ia kompiuter\u012f ir gal\u0173 gale vistiek pra\u0161o b\u016bti nupirktas. Taigi, nepilstydamas i\u0161 tu\u0161\u010dio \u012f kiaur\u0105 papasakosiu apie \u012frank\u012f, kur\u012f jau senai naudoju – ffmpeg (windows naujausi atsisiuntimai arba lokali kopija). Pradedan\u010diajam \u0161is \u012frankis gali nelabai patikti, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[19,5,15],"tags":[],"class_list":["post-4207","post","type-post","status-publish","format-standard","hentry","category-time-lapse","category-uzrasai","category-video"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2rU5c-15R","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts\/4207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/comments?post=4207"}],"version-history":[{"count":33,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts\/4207\/revisions"}],"predecessor-version":[{"id":8258,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts\/4207\/revisions\/8258"}],"wp:attachment":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/media?parent=4207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/categories?post=4207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/tags?post=4207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}