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react-native-ffmpegを使って動画をいじくりmawasou
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Yu Watanabe
October 02, 2021
Programming
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react-native-ffmpegを使って動画をいじくりmawasou
react-native-ffmpegについて
Yu Watanabe
October 02, 2021
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Transcript
2021/10/02 ΘͨͳΏ͏ REACT-NATIVE-FFMPEGΛͬͯ ಈըΛ͍͘͡Γճͦ͏
▸ ಈըΛฤू͢ΔΑ͏ͳΞϓϦΛ࡞Ζ͏͔ͳͱߟ͍͑ͯΔਓ ຊεϥΠυͷλʔήοτ
▸ ࣗݾհ ▸ ·ͱΊ ࣍
ࣗݾհ ΘͨͳΏ͏ גࣜձࣾg&h CTO + ଞͷ͓ख͍ Twitterɿ@hmktsu GitHubɿ@watanabeyu
࡞͍ͬͯΔαʔϏε ▸ ಈըΛݟͳ͕ΒϝϞ͕ॻ͚ΔΞϓϦROLL (ۙʑެ։༧ఆ) ▸ μϯεͦͷଞ֤छεϙʔπͳͲͰͬͯΒ͍͍ͨ ▸ ͷಈըΛબͯ͠ΞϓϦʹอଘ͢Δܗࣜ ▸ ศརͳϓϨΠϠʔػೳ
▸ όοΫΞοϓػೳFirebaseΛͬͯߏங ▸ ϚʔέςΟϯά༻్ͱͯ͠ͷಈըҰ෦Γൈ͖ػೳ ▸ ಈըΓൈ͖ػೳಈըΛ͍͘͡ΔػೳΛࠓޙఏڙ༧ఆ ▸ Bare Work fl ow(react-native-unimodules)Ͱߏங ಈըͷΓൈ͖͍͘͡Δʹʁ ͱ͍͏͜ͱΛຊհ
ຊͷςʔϚ react-native-ffmpegΛͬͯಈըΛ͍͘͡Γճͦ͏
ಈըΛ͍͘͡Δཧܥ ▸ iPhoneͷΧϝϥϩʔϧͷΑ͏ͳܗ ▸ ࿐ޫௐ৭ௐͳͲ͍Βͳ͍ ▸ ࣌ؒͷτϦϛϯά͕Ͱ͖ΕΑ͍ ▸ Ξοϓϩʔυ࣌ʹը֯(εέʔϧ)ΛมߋͰ͖ΔͱΑ͍ ▸
iOS/Android྆ରԠ͍ͨ͠ ▸ ӈͷΑ͏ͳը໘࠷ѱࣗͰ࡞͍͍ͬͯ
ಈըΛ͍͘͡ΔϥΠϒϥϦͷબࢶ ▸ expo-image-picker ▸ react-native-image-picker ▸ react-native-image-crop-picker ▸ react-native-video-helper ▸
react-native-video-processing ▸ vesdk-react-native ▸ react-native-ffmpeg
ಈըΛ͍͘͡ΔϥΠϒϥϦͷબࢶ ▸ expo-image-picker ▸ react-native-image-picker ▸ react-native-image-crop-picker ▸ react-native-video-helper ▸
react-native-video-processing ▸ vesdk-react-native ▸ react-native-ffmpeg ɾࡱӨΛऔಘͰ͖ͳ͍ ɾΦϦδφϧͷID͕औಘͰ͖ͳ͍ ɾAndroidͰͷτϦϛϯά͕Ͱ͖ͳ͍
ಈըΛ͍͘͡ΔϥΠϒϥϦͷબࢶ ▸ expo-image-picker ▸ react-native-image-picker ▸ react-native-image-crop-picker ▸ react-native-video-helper ▸
react-native-video-processing ▸ vesdk-react-native ▸ react-native-ffmpeg ɾॲཧ͕ॏ͍ɺࣗ༝͕͍
ಈըΛ͍͘͡ΔϥΠϒϥϦͷબࢶ ▸ expo-image-picker ▸ react-native-image-picker ▸ react-native-image-crop-picker ▸ react-native-video-helper ▸
react-native-video-processing ▸ vesdk-react-native ▸ react-native-ffmpeg ɾಋೖ͕໘ɺΦʔόʔεϖοΫ
ಈըΛ͍͘͡ΔϥΠϒϥϦͷબࢶ ▸ expo-image-picker ▸ react-native-image-picker ▸ react-native-image-crop-picker ▸ react-native-video-helper ▸
react-native-video-processing ▸ vesdk-react-native ▸ react-native-ffmpeg ɾฤूը໘͋Δ͕ɺ͓͕͔͔ۚΔ…
ಈըΛ͍͘͡ΔϥΠϒϥϦͷબࢶ ▸ expo-image-picker ▸ react-native-image-picker ▸ react-native-image-crop-picker ▸ react-native-video-helper ▸
react-native-video-processing ▸ vesdk-react-native ▸ react-native-ffmpeg ffmpegΛ͍׳Ε͍ͯΔ + ಋೖҙ֎ͱ؆୯ ฤूը໘؆୯ʹࣗͰ࡞Ε͍͍
REACT-NATIVE-FFMPEGͰΑ͘͏Ͱ͋Ζ͏ίϚϯυ ϑΝΠϧͷίϐʔ
REACT-NATIVE-FFMPEGͰΑ͘͏Ͱ͋Ζ͏ίϚϯυ ઌ಄10ඵ͚ͩΓൈ͍ͯɺԣ320pxʹεέʔϧมߋ
REACT-NATIVE-FFMPEGͰΑ͘͏Ͱ͋Ζ͏ίϚϯυ fpsΛ10Ͱԣ320pxͷgifը૾Λ࡞
REACT-NATIVE-FFMPEGͰΑ͘͏Ͱ͋Ζ͏ίϚϯυ 10ඵͰαϜωΠϧΛ࡞Δ
ҙ ▸ Γൈ͖͔͔࣌ؒΒͳ͍͚Ͳεέʔϧมߋ͕͔͔࣌ؒΔ ▸ όΠφϦׂͱେ͖ΊʹͳΔ ▸ ͳ͍͠ϑΝΠϧαΠζʹΑͬͯॲཧ͕͍͜ͱ ▸ ΞϓϦαΠζ͕૿͕͑ͪͳͷͰɺҰ࣌ϑΝΠϧͷআ͕ඞཁ ▸
มதʹॲཧ͕ࢭ·ͬͨͱ͖ͷresumeॲཧΛೖΕΔඞཁ͋Γ ▸ มͨ͠ಈըΛwebͰ͍͍ͨ߹ͳͲίʔσοΫʹҙ ▸ ΧϝϥϩʔϧͷΑ͏ͳฤूػೳΛ࡞Ζ͏ͱ͢Δͱίϯϙʔωϯ τͷ࡞ΓࠐΈ͕ൃੜׂͯ͠ͱਏ͍
REACT-NATIVE-FFMPEGΛͬͯಈըΛ͍͘͡Γճͦ͏ ·ͱΊ
·ͱΊ ▸ ༷ʑͳϥΠϒϥϦ͕͋Δ͕ɺϕετͳಈըฤूϥΠϒϥϦͳ͍ ▸ ffmpegΛͬͯࣗલͰฤूը໘Λ࡞ΔܗʹͳΓ͕ͪ ಈըฤूΛΞϓϦͰΔͷྗ͕ඞཁ
͓ΘΓ