我是Gatsby的新手,我正在研究Gatsby Video插件,因此我按照他们的docs中的说明进行操作。
该视频剪辑本身名为beach2.mp4,位于src根目录下的images文件夹中。该位置已添加到我的gatsby-config.js中,这是该文件的一部分:
{
resolve: `gatsby-source-filesystem`,
options: {
name: `images`,
path: `${__dirname}/src/images/`,
},
我安装了软件包本身,并将其也添加到我的gatsby-config.js文件中,如下所示:
module.exports = {
siteMetadata: {
title: "Gatsby Default Starter",
},
plugins: [
`gatsby-plugin-react-helmet`,
`gatsby-plugin-styled-components`,
`gatsby-transformer-sharp`,
`gatsby-plugin-sharp`,
`gatsby-transformer-ffmpeg`,
],
}
我跟随他们的示例查询进行页面查询,当我在GraphQL中运行此查询时,我开始看到一个问题:
query MyQuery {
file(relativePath: {eq: "src/images/beach2.mp4"}) {
childVideoFfmpeg {
webm: transcode(outputOptions: ["-crf 20", "-b:v 0"], maxWidth: 900, maxHeight: 480, fileExtension: "webm", codec: "libvpx-vp9") {
width
src
presentationMaxWidth
presentationMaxHeight
originalName
height
fileExtension
aspectRatio
}
mp4: transcode(maxWidth: 900, maxHeight: 480, fileExtension: "mp4", codec: "libx264") {
width
src
presentationMaxWidth
presentationMaxHeight
originalName
height
fileExtension
aspectRatio
}
}
}
}
我收到以下答复:
{
"data": {
"file": null
}
}
在我的components文件夹中,有一个名为HeroImage.js的文件,其中包含查询设置和视频组件,如下所示:
import React from "react"
import { Video } from "gatsby-video"
import { graphql } from "gatsby"
import { HeroWrapper } from "../elements"
export const pageQuery = graphql`
{
file(relativePath: { eq: "src/images/beach2.mp4" }) {
childVideoFfmpeg {
webm: transcode(
outputOptions: ["-crf 20", "-b:v 0"]
maxWidth: 900
maxHeight: 480
fileExtension: "webm"
codec: "libvpx-vp9"
) {
width
src
presentationMaxWidth
presentationMaxHeight
originalName
height
fileExtension
aspectRatio
}
mp4: transcode(
maxWidth: 900
maxHeight: 480
fileExtension: "mp4"
codec: "libx264"
) {
width
src
presentationMaxWidth
presentationMaxHeight
originalName
height
fileExtension
aspectRatio
}
}
}
}
`
export const MainPageVideo = props => {
const videos = props.data.file.childVideoFfmpeg
return (
<HeroWrapper>
<Video
// poster={poster_image}
autoPlay
muted
loop
sources={[videos.webm, videos.mp4]}
/>
</HeroWrapper>
)
}
最后,在页面文件夹中的index.js文件中,我执行了以下操作:
import React from "react"
import { Container } from "../components"
import * as styles from "../elements"
import Link from "gatsby-link"
export const IndexPage = () => {
return (
<Container>
<styles.HeroWrapper>
<styles.Video />
</styles.HeroWrapper>
</Container>
)
}
export default IndexPage
我在这里错过了什么?视频剪辑没有显示。
答案 0 :(得分:0)
您的<https://codepen.io/rosy654/pen/PoNZENN>
必须是亲戚:
SELECT * FROM (
SELECT 0 ord1, NOW() as ord2, *
FROM myTable WHERE myDate > NOW() - INTERVAL 3 DAY
UNION ALL
SELECT 1 ord1, myDate as ord2, *
FROM myTable WHERE myDate <= NOW() - INTERVAL 3 DAY
) a
ORDER BY ord1, ord2 DESC, myPopularityScore
应成为:
var rowNode = myTable.row.add([results.location_id, location_name.value, location_streetname.value , add_loc_hotline_phone ]).draw().node();
const $rowindex_ = $(rowNode).closest("tr");
const loc_city = $rowindex_.find('.location_address').attr('data-loc_city', location_city.value);
const loc_streetname = $rowindex_.find('.location_address').attr('data-loc_streetname', location_streetname.value);
由于您已经向文件系统添加了relativePath
名称。您可以使用 file(relativePath: {eq: "src/images/beach2.mp4"})
进行查询,例如:
file(relativePath: {eq: "images/beach2.mp4"})
根据您的情况,上面的过滤查询将包含所有图像和视频(因为它们位于同一文件夹中)。您可以制作另一个文件系统实例,以将视频放置在该文件系统实例中,并使用相同的方法(称为image
的{{1}}来检索视频。
除了一些优化(解构等)之外,其余代码看起来都很完美。