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• What permission ffmpeg-static need in AWS Lambda ?

  17 février 2023, par János

  I have this code. It download a image, made a video from it and upload it to S3. It runs on Lambda. Added packages, intalled, zipped, uploaded.

  


  npm install --production
zip -r my-lambda-function.zip ./


  


  But get an error code 126

  


  2023-02-17T09:27:55.236Z    5c845bb6-02c1-41b0-8759-4459591b57b0    INFO    Error: ffmpeg exited with code 126&#xA;    at ChildProcess.<anonymous> (/var/task/node_modules/fluent-ffmpeg/lib/processor.js:182:22)&#xA;    at ChildProcess.emit (node:events:513:28)&#xA;    at ChildProcess._handle.onexit (node:internal/child_process:291:12)&#xA;2023-02-17T09:27:55.236Z 5c845bb6-02c1-41b0-8759-4459591b57b0 INFO Error: ffmpeg exited with code 126 at ChildProcess.<anonymous> (/var/task/node_modules/fluent-ffmpeg/lib/processor.js:182:22) at ChildProcess.emit (node:events:513:28) at ChildProcess._handle.onexit (node:internal/child_process:291:12)&#xA;</anonymous></anonymous>

  


  Do I need to set a specific premission for ffmpeg ?

  


  import { PutObjectCommand, S3Client } from '@aws-sdk/client-s3'
import { fromNodeProviderChain } from '@aws-sdk/credential-providers'
import axios from 'axios'
import pathToFfmpeg from 'ffmpeg-static'
import ffmpeg from 'fluent-ffmpeg'
import fs from 'fs'
ffmpeg.setFfmpegPath(pathToFfmpeg)
const credentials = fromNodeProviderChain({
    clientConfig: {
        region: 'eu-central-1',
    },
})
const client = new S3Client({ credentials })

export const handler = async (event, context) => {
    try {
        let body
        let statusCode = 200
        const query = event?.queryStringParameters
        if (!query?.imgId && !query?.video1Id && !query?.video2Id) {
            return
        }

        const imgId = query?.imgId
        const video1Id = query?.video1Id
        const video2Id = query?.video2Id
        console.log(
            `Parameters received, imgId: ${imgId}, video1Id: ${video1Id}, video2Id: ${video2Id}`
        )
        const imgURL = getFileURL(imgId)
        const video1URL = getFileURL(`${video1Id}.mp4`)
        const video2URL = getFileURL(`${video2Id}.mp4`)
        const imagePath = `/tmp/${imgId}`
        const video1Path = `/tmp/${video1Id}.mp4`
        const video2Path = `/tmp/${video2Id}.mp4`
        const outputPath = `/tmp/${imgId}.mp4`
        await Promise.all([
            downloadFile(imgURL, imagePath),
            downloadFile(video1URL, video1Path),
            downloadFile(video2URL, video2Path),
        ])
        await new Promise((resolve, reject) => {
            console.log('Input files downloaded')
            ffmpeg()
                .input(imagePath)
                .inputFormat('image2')
                .inputFPS(30)
                .loop(1)
                .size('1080x1080')
                .videoCodec('libx264')
                .format('mp4')
                .outputOptions([
                    '-tune animation',
                    '-pix_fmt yuv420p',
                    '-profile:v baseline',
                    '-level 3.0',
                    '-preset medium',
                    '-crf 23',
                    '-movflags +faststart',
                    '-y',
                ])
                .output(outputPath)
                .on('end', () => {
                    console.log('Output file generated')
                    resolve()
                })
                .on('error', (e) => {
                    console.log(e)
                    reject()
                })
                .run()
            
        })
        await uploadFile(outputPath, imgId + '.mp4')
            .then((url) => {
                body = JSON.stringify({
                    url,
                })
            })
            .catch((error) => {
                console.error(error)
                statusCode = 400
                body = error?.message ?? error
            })
        console.log(`File uploaded to S3`)
        const headers = {
            'Content-Type': 'application/json',
            'Access-Control-Allow-Headers': 'Content-Type',
            'Access-Control-Allow-Origin': 'https://tikex.com, https://borespiac.hu',
            'Access-Control-Allow-Methods': 'GET',
        }
        return {
            statusCode,
            body,
            headers,
        }
    } catch (error) {
        console.error(error)
        return {
            statusCode: 500,
            body: JSON.stringify('Error fetching data'),
        }
    }
}

const downloadFile = async (url, path) => {
    try {
        console.log(`Download will start: ${url}`)
        const response = await axios(url, {
            responseType: 'stream',
        })
        if (response.status !== 200) {
            throw new Error(
                `Failed to download file, status code: ${response.status}`
            )
        }
        response.data
            .pipe(fs.createWriteStream(path))
            .on('finish', () => console.log(`File downloaded to ${path}`))
            .on('error', (e) => {
                throw new Error(`Failed to save file: ${e}`)
            })
    } catch (e) {
        console.error(`Error downloading file: ${e}`)
    }
}
const uploadFile = async (path, id) => {
    const buffer = fs.readFileSync(path)
    const params = {
        Bucket: 't44-post-cover',
        ACL: 'public-read',
        Key: id,
        ContentType: 'video/mp4',
        Body: buffer,
    }
    await client.send(new PutObjectCommand(params))
    return getFileURL(id)
}
const getFileURL = (id) => {
    const bucket = 't44-post-cover'
    const url = `https://${bucket}.s3.eu-central-1.amazonaws.com/${id}`
    return url
}


  


  Added AWSLambdaBasicExecutionRole-16e770c8-05fa-4c42-9819-12c468cb5b49 permission, with policy :

  


  {
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "logs:CreateLogGroup",
            "Resource": "arn:aws:logs:eu-central-1:634617701827:*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "logs:CreateLogStream",
                "logs:PutLogEvents"
            ],
            "Resource": [
                "arn:aws:logs:eu-central-1:634617701827:log-group:/aws/lambda/promo-video-composer-2:*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetObject",
                "s3:PutObject",
                "s3:ListBucket"
            ],
            "Resource": [
                "arn:aws:s3:::example-bucket",
                "arn:aws:s3:::example-bucket/*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "logs:CreateLogGroup",
                "logs:CreateLogStream",
                "logs:PutLogEvents"
            ],
            "Resource": [
                "arn:aws:logs:*:*:*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "ec2:DescribeNetworkInterfaces"
            ],
            "Resource": [
                "*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "sns:*"
            ],
            "Resource": [
                "*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "cloudwatch:*"
            ],
            "Resource": [
                "*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "kms:Decrypt"
            ],
            "Resource": [
                "*"
            ]
        }
    ]
}


  


  What do I miss ?

  


  janoskukoda@Janoss-MacBook-Pro promo-video-composer-2 % ls -l $(which ffmpeg)
lrwxr-xr-x  1 janoskukoda  admin  35 Feb 10 12:50 /opt/homebrew/bin/ffmpeg -> ../Cellar/ffmpeg/5.1.2_4/bin/ffmpeg


  


• avcodec : export motion vectors in frame side data on demand

  16 juillet 2014, par Clément Bœsch

  avcodec : export motion vectors in frame side data on demand
  The reasoning behind this addition is that various third party
  
  applications are interested in getting some motion information out of a
  
  video "for free" when it is available.
  It was considered to export other information as well (such as the intra
  
  information about the block, or the quantization) but the structure
  
  might have ended up into a half full-generic, half full of codec
  
  specific cruft. If more information is necessary, it should either be
  
  added in the "flags" field of the AVMotionVector structure, or in
  
  another side-data.
  This commit also includes an example exporting them in a CSV stream.
  

  • [DH] .gitignore
  • [DH] configure
  • [DH] doc/APIchanges
  • [DH] doc/Makefile
  • [DH] doc/codecs.texi
  • [DH] doc/examples/Makefile
  • [DH] doc/examples/extract_mvs.c
  • [DH] libavcodec/avcodec.h
  • [DH] libavcodec/mpegvideo.c
  • [DH] libavcodec/options_table.h
  • [DH] libavutil/Makefile
  • [DH] libavutil/frame.c
  • [DH] libavutil/frame.h
  • [DH] libavutil/motion_vector.h
  • [DH] libavutil/version.h

• Merge commit ’a6a750c7ef240b72ce01e9653343a0ddf247d196’

  22 juin 2016, par Clément Bœsch

  Merge commit ’a6a750c7ef240b72ce01e9653343a0ddf247d196’
  * commit ’a6a750c7ef240b72ce01e9653343a0ddf247d196’ :
  
    tests : Move all test programs to a subdirectory
  Merged-by : Clément Bœsch <clement@stupeflix.com>
  

  • [DH] .gitignore
  • [DH] common.mak
  • [DH] libavcodec/Makefile
  • [DH] libavcodec/tests/.gitignore
  • [DH] libavcodec/tests/arm/dct.c
  • [DH] libavcodec/tests/avfft.c
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  • [DH] libavcodec/tests/jpeg2000dwt.c
  • [DH] libavcodec/tests/mathops.c
  • [DH] libavcodec/tests/motion.c
  • [DH] libavcodec/tests/options.c
  • [DH] libavcodec/tests/ppc/dct.c
  • [DH] libavcodec/tests/rangecoder.c
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  • [DH] libavcodec/tests/utils.c
  • [DH] libavcodec/tests/x86/dct.c
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  • [DH] libavfilter/tests/drawutils.c
  • [DH] libavfilter/tests/filtfmts.c
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  • [DH] libavformat/tests/movenc.c
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