mirror of https://github.com/jlelse/GoBlog
Image compression / resize using pure Go and not vips
This commit is contained in:
parent
89eb4ba9b8
commit
6c115b1491
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@ -1,7 +1,7 @@
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FROM golang:1.18-alpine3.15 as buildbase
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FROM golang:1.18-alpine3.15 as buildbase
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WORKDIR /app
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WORKDIR /app
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RUN apk add --no-cache git gcc musl-dev vips-dev
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RUN apk add --no-cache git gcc musl-dev
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RUN apk add --no-cache --repository=http://dl-cdn.alpinelinux.org/alpine/edge/main sqlite-dev
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RUN apk add --no-cache --repository=http://dl-cdn.alpinelinux.org/alpine/edge/main sqlite-dev
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ENV GOFLAGS="-tags=linux,libsqlite3,sqlite_fts5"
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ENV GOFLAGS="-tags=linux,libsqlite3,sqlite_fts5"
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ADD *.go go.mod go.sum /app/
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ADD *.go go.mod go.sum /app/
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@ -30,7 +30,7 @@ EXPOSE 443
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EXPOSE 8080
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EXPOSE 8080
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CMD ["GoBlog"]
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CMD ["GoBlog"]
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HEALTHCHECK --interval=1m --timeout=10s CMD GoBlog healthcheck
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HEALTHCHECK --interval=1m --timeout=10s CMD GoBlog healthcheck
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RUN apk add --no-cache tzdata tor vips-dev
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RUN apk add --no-cache tzdata tor
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RUN apk add --no-cache --repository=http://dl-cdn.alpinelinux.org/alpine/edge/main sqlite-dev
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RUN apk add --no-cache --repository=http://dl-cdn.alpinelinux.org/alpine/edge/main sqlite-dev
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COPY templates/ /app/templates/
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COPY templates/ /app/templates/
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COPY --from=build /app/GoBlog /bin/
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COPY --from=build /app/GoBlog /bin/
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@ -32,7 +32,6 @@ Requirements:
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- git
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- git
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- go >= 1.17
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- go >= 1.17
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- libsqlite3 with FTS5 enabled >= 3.31 (the newer the better)
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- libsqlite3 with FTS5 enabled >= 3.31 (the newer the better)
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- libvips >= 8.10 (the newer the better)
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Build command:
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Build command:
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@ -27,7 +27,7 @@ It is possible to configure multiple compression providers. If one fails, the ne
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1. Tinify
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1. Tinify
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2. Cloudflare
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2. Cloudflare
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3. Local compression using VIPS
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3. Local compression
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## Text-to-Speech
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## Text-to-Speech
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3
go.mod
3
go.mod
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@ -13,9 +13,9 @@ require (
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github.com/c2h5oh/datasize v0.0.0-20200825124411-48ed595a09d2
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github.com/c2h5oh/datasize v0.0.0-20200825124411-48ed595a09d2
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github.com/carlmjohnson/requests v0.22.1
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github.com/carlmjohnson/requests v0.22.1
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github.com/cretz/bine v0.2.0
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github.com/cretz/bine v0.2.0
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github.com/davidbyttow/govips/v2 v2.11.0
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github.com/dchest/captcha v0.0.0-20200903113550-03f5f0333e1f
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github.com/dchest/captcha v0.0.0-20200903113550-03f5f0333e1f
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github.com/dgraph-io/ristretto v0.1.0
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github.com/dgraph-io/ristretto v0.1.0
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github.com/disintegration/imaging v1.6.2
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github.com/dmulholl/mp3lib v1.0.0
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github.com/dmulholl/mp3lib v1.0.0
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github.com/elnormous/contenttype v1.0.2
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github.com/elnormous/contenttype v1.0.2
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github.com/emersion/go-sasl v0.0.0-20211008083017-0b9dcfb154ac
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github.com/emersion/go-sasl v0.0.0-20211008083017-0b9dcfb154ac
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@ -139,6 +139,7 @@ require (
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golang.zx2c4.com/wireguard/windows v0.4.10 // indirect
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golang.zx2c4.com/wireguard/windows v0.4.10 // indirect
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google.golang.org/appengine v1.6.7 // indirect
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google.golang.org/appengine v1.6.7 // indirect
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google.golang.org/protobuf v1.27.1 // indirect
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google.golang.org/protobuf v1.27.1 // indirect
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gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
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gopkg.in/ini.v1 v1.66.2 // indirect
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gopkg.in/ini.v1 v1.66.2 // indirect
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gopkg.in/yaml.v2 v2.4.0 // indirect
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gopkg.in/yaml.v2 v2.4.0 // indirect
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gvisor.dev/gvisor v0.0.0-20220126021142-d8aa030b2591 // indirect
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gvisor.dev/gvisor v0.0.0-20220126021142-d8aa030b2591 // indirect
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9
go.sum
9
go.sum
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@ -94,14 +94,14 @@ github.com/cretz/bine v0.2.0/go.mod h1:WU4o9QR9wWp8AVKtTM1XD5vUHkEqnf2vVSo6dBqbe
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davidbyttow/govips/v2 v2.11.0 h1:eJY+Sgt2LRVh6TFSNMnl5rrFkDfuToG5uE5aLSV1jvM=
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github.com/davidbyttow/govips/v2 v2.11.0/go.mod h1:goq38QD8XEMz2aWEeucEZqRxAWsemIN40vbUqfPfTAw=
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github.com/dchest/captcha v0.0.0-20200903113550-03f5f0333e1f h1:q/DpyjJjZs94bziQ7YkBmIlpqbVP7yw179rnzoNVX1M=
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github.com/dchest/captcha v0.0.0-20200903113550-03f5f0333e1f h1:q/DpyjJjZs94bziQ7YkBmIlpqbVP7yw179rnzoNVX1M=
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github.com/dchest/captcha v0.0.0-20200903113550-03f5f0333e1f/go.mod h1:QGrK8vMWWHQYQ3QU9bw9Y9OPNfxccGzfb41qjvVeXtY=
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github.com/dchest/captcha v0.0.0-20200903113550-03f5f0333e1f/go.mod h1:QGrK8vMWWHQYQ3QU9bw9Y9OPNfxccGzfb41qjvVeXtY=
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github.com/dgraph-io/ristretto v0.1.0 h1:Jv3CGQHp9OjuMBSne1485aDpUkTKEcUqF+jm/LuerPI=
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github.com/dgraph-io/ristretto v0.1.0 h1:Jv3CGQHp9OjuMBSne1485aDpUkTKEcUqF+jm/LuerPI=
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github.com/dgraph-io/ristretto v0.1.0/go.mod h1:fux0lOrBhrVCJd3lcTHsIJhq1T2rokOu6v9Vcb3Q9ug=
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github.com/dgraph-io/ristretto v0.1.0/go.mod h1:fux0lOrBhrVCJd3lcTHsIJhq1T2rokOu6v9Vcb3Q9ug=
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github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2 h1:tdlZCpZ/P9DhczCTSixgIKmwPv6+wP5DGjqLYw5SUiA=
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github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2 h1:tdlZCpZ/P9DhczCTSixgIKmwPv6+wP5DGjqLYw5SUiA=
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github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
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github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
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github.com/disintegration/imaging v1.6.2 h1:w1LecBlG2Lnp8B3jk5zSuNqd7b4DXhcjwek1ei82L+c=
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github.com/disintegration/imaging v1.6.2/go.mod h1:44/5580QXChDfwIclfc/PCwrr44amcmDAg8hxG0Ewe4=
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github.com/djherbis/atime v1.1.0/go.mod h1:28OF6Y8s3NQWwacXc5eZTsEsiMzp7LF8MbXE+XJPdBE=
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github.com/djherbis/atime v1.1.0/go.mod h1:28OF6Y8s3NQWwacXc5eZTsEsiMzp7LF8MbXE+XJPdBE=
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github.com/dlclark/regexp2 v1.4.0 h1:F1rxgk7p4uKjwIQxBs9oAXe5CqrXlCduYEJvrF4u93E=
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github.com/dlclark/regexp2 v1.4.0 h1:F1rxgk7p4uKjwIQxBs9oAXe5CqrXlCduYEJvrF4u93E=
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github.com/dlclark/regexp2 v1.4.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
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github.com/dlclark/regexp2 v1.4.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
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@ -372,7 +372,6 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lN
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github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
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github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
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github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
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github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
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github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
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github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
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github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
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github.com/paulmach/go.geojson v1.4.0 h1:5x5moCkCtDo5x8af62P9IOAYGQcYHtxz2QJ3x1DoCgY=
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github.com/paulmach/go.geojson v1.4.0 h1:5x5moCkCtDo5x8af62P9IOAYGQcYHtxz2QJ3x1DoCgY=
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github.com/paulmach/go.geojson v1.4.0/go.mod h1:YaKx1hKpWF+T2oj2lFJPsW/t1Q5e1jQI61eoQSTwpIs=
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github.com/paulmach/go.geojson v1.4.0/go.mod h1:YaKx1hKpWF+T2oj2lFJPsW/t1Q5e1jQI61eoQSTwpIs=
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github.com/pelletier/go-toml v1.9.4 h1:tjENF6MfZAg8e4ZmZTeWaWiT2vXtsoO6+iuOjFhECwM=
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github.com/pelletier/go-toml v1.9.4 h1:tjENF6MfZAg8e4ZmZTeWaWiT2vXtsoO6+iuOjFhECwM=
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@ -505,7 +504,7 @@ golang.org/x/exp v0.0.0-20220303212507-bbda1eaf7a17 h1:3MTrJm4PyNL9NBqvYDSj3DHl4
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golang.org/x/exp v0.0.0-20220303212507-bbda1eaf7a17/go.mod h1:lgLbSvA5ygNOMpwM/9anMpWVlVJ7Z+cHWq/eFuinpGE=
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golang.org/x/exp v0.0.0-20220303212507-bbda1eaf7a17/go.mod h1:lgLbSvA5ygNOMpwM/9anMpWVlVJ7Z+cHWq/eFuinpGE=
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golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
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golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
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golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/image v0.0.0-20200927104501-e162460cd6b5/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/image v0.0.0-20220321031419-a8550c1d254a h1:LnH9RNcpPv5Kzi15lXg42lYMPUf0x8CuPv1YnvBWZAg=
|
golang.org/x/image v0.0.0-20220321031419-a8550c1d254a h1:LnH9RNcpPv5Kzi15lXg42lYMPUf0x8CuPv1YnvBWZAg=
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golang.org/x/image v0.0.0-20220321031419-a8550c1d254a/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
|
golang.org/x/image v0.0.0-20220321031419-a8550c1d254a/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
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golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
|
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
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|
@ -562,7 +561,6 @@ golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81R
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golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
|
golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
|
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golang.org/x/net v0.0.0-20201010224723-4f7140c49acb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
|
golang.org/x/net v0.0.0-20201010224723-4f7140c49acb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
|
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golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
|
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
|
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golang.org/x/net v0.0.0-20201031054903-ff519b6c9102/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
|
|
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golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
|
golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
|
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golang.org/x/net v0.0.0-20201216054612-986b41b23924/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
|
golang.org/x/net v0.0.0-20201216054612-986b41b23924/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
|
||||||
golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
|
golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
|
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|
@ -668,7 +666,6 @@ golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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||||||
golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||||
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
|
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
|
||||||
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
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golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
|
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golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
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golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
|
golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
|
||||||
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
|
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
|
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|
|
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@ -1,18 +1,17 @@
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package main
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package main
|
||||||
|
|
||||||
import (
|
import (
|
||||||
"bytes"
|
|
||||||
"context"
|
"context"
|
||||||
"crypto/sha256"
|
"crypto/sha256"
|
||||||
"errors"
|
"errors"
|
||||||
"fmt"
|
"fmt"
|
||||||
|
"image/png"
|
||||||
"io"
|
"io"
|
||||||
"log"
|
"log"
|
||||||
"math"
|
|
||||||
"net/http"
|
"net/http"
|
||||||
|
|
||||||
"github.com/carlmjohnson/requests"
|
"github.com/carlmjohnson/requests"
|
||||||
"github.com/davidbyttow/govips/v2/vips"
|
"github.com/disintegration/imaging"
|
||||||
"go.goblog.app/app/pkgs/bufferpool"
|
"go.goblog.app/app/pkgs/bufferpool"
|
||||||
)
|
)
|
||||||
|
|
||||||
|
@ -145,27 +144,6 @@ func (*localMediaCompressor) compress(url string, upload mediaStorageSaveFunc, h
|
||||||
if !allowed {
|
if !allowed {
|
||||||
return "", nil
|
return "", nil
|
||||||
}
|
}
|
||||||
// Start Vips
|
|
||||||
vips.Startup(&vips.Config{
|
|
||||||
CollectStats: false,
|
|
||||||
MaxCacheFiles: 0,
|
|
||||||
MaxCacheMem: 0,
|
|
||||||
MaxCacheSize: 0,
|
|
||||||
ConcurrencyLevel: 1,
|
|
||||||
})
|
|
||||||
// Check type
|
|
||||||
var imgType vips.ImageType
|
|
||||||
switch fileExtension {
|
|
||||||
case "jpg", "jpeg":
|
|
||||||
imgType = vips.ImageTypeJPEG
|
|
||||||
case "png":
|
|
||||||
imgType = vips.ImageTypePNG
|
|
||||||
default:
|
|
||||||
imgType = vips.ImageTypeUnknown
|
|
||||||
}
|
|
||||||
if !vips.IsTypeSupported(imgType) {
|
|
||||||
return "", nil
|
|
||||||
}
|
|
||||||
// Download image
|
// Download image
|
||||||
imgBuffer := bufferpool.Get()
|
imgBuffer := bufferpool.Get()
|
||||||
defer bufferpool.Put(imgBuffer)
|
defer bufferpool.Put(imgBuffer)
|
||||||
|
@ -178,47 +156,29 @@ func (*localMediaCompressor) compress(url string, upload mediaStorageSaveFunc, h
|
||||||
log.Println("Local compressor error:", err.Error())
|
log.Println("Local compressor error:", err.Error())
|
||||||
return "", errors.New("failed to download image using local compressor")
|
return "", errors.New("failed to download image using local compressor")
|
||||||
}
|
}
|
||||||
// Compress image using bimg
|
// Decode image
|
||||||
img, err := vips.NewImageFromReader(imgBuffer)
|
img, err := imaging.Decode(imgBuffer, imaging.AutoOrientation(true))
|
||||||
if err != nil {
|
if err != nil {
|
||||||
log.Println("Local compressor error:", err.Error())
|
log.Println("Local compressor error:", err.Error())
|
||||||
return "", errors.New("failed to compress image using local compressor")
|
return "", errors.New("failed to compress image using local compressor")
|
||||||
}
|
}
|
||||||
// Auto rotate image
|
// Resize image
|
||||||
err = img.AutoRotate()
|
resizedImage := imaging.Fit(img, defaultCompressionWidth, defaultCompressionHeight, imaging.Lanczos)
|
||||||
if err != nil {
|
// Encode image
|
||||||
log.Println("Local compressor error:", err.Error())
|
resizedBuffer := bufferpool.Get()
|
||||||
return "", errors.New("failed to compress image using local compressor")
|
defer bufferpool.Put(resizedBuffer)
|
||||||
|
switch fileExtension {
|
||||||
|
case "jpg", "jpeg":
|
||||||
|
err = imaging.Encode(resizedBuffer, resizedImage, imaging.JPEG, imaging.JPEGQuality(75))
|
||||||
|
case "png":
|
||||||
|
err = imaging.Encode(resizedBuffer, resizedImage, imaging.PNG, imaging.PNGCompressionLevel(png.BestCompression))
|
||||||
}
|
}
|
||||||
// Get resize ratio to fit in max width and height
|
|
||||||
ratioHeight := float64(defaultCompressionHeight) / float64(img.Height())
|
|
||||||
ratioWidth := float64(defaultCompressionWidth) / float64(img.Width())
|
|
||||||
ratio := math.Min(ratioHeight, ratioWidth)
|
|
||||||
// Resize image (only downscale)
|
|
||||||
if ratio < 1 {
|
|
||||||
err = img.Resize(ratio, vips.KernelAuto)
|
|
||||||
if err != nil {
|
|
||||||
log.Println("Local compressor error:", err.Error())
|
|
||||||
return "", errors.New("failed to compress image using local compressor")
|
|
||||||
}
|
|
||||||
}
|
|
||||||
// Export resized image
|
|
||||||
ep := vips.NewDefaultExportParams()
|
|
||||||
ep.StripMetadata = true // Strip metadata
|
|
||||||
ep.Interlaced = true // Progressive image
|
|
||||||
ep.TrellisQuant = true // Trellis quantization (JPEG only)
|
|
||||||
ep.OptimizeCoding = true // Optimize Huffman coding tables (JPEG only)
|
|
||||||
ep.OptimizeScans = true // Optimize progressive scans (JPEG only)
|
|
||||||
ep.OvershootDeringing = true // Overshoot deringing (JPEG only)
|
|
||||||
ep.Compression = 100 // Compression factor
|
|
||||||
ep.Quality = 75 // Quality factor
|
|
||||||
compressed, _, err := img.Export(ep)
|
|
||||||
if err != nil {
|
if err != nil {
|
||||||
log.Println("Local compressor error:", err.Error())
|
log.Println("Local compressor error:", err.Error())
|
||||||
return "", errors.New("failed to compress image using local compressor")
|
return "", errors.New("failed to compress image using local compressor")
|
||||||
}
|
}
|
||||||
// Upload compressed file
|
// Upload compressed file
|
||||||
return uploadCompressedFile(fileExtension, bytes.NewReader(compressed), upload)
|
return uploadCompressedFile(fileExtension, resizedBuffer, upload)
|
||||||
}
|
}
|
||||||
|
|
||||||
func uploadCompressedFile(fileExtension string, r io.Reader, upload mediaStorageSaveFunc) (string, error) {
|
func uploadCompressedFile(fileExtension string, r io.Reader, upload mediaStorageSaveFunc) (string, error) {
|
||||||
|
|
Loading…
Reference in New Issue