Error: ffmpeg exited with code 1 on AWS Lambda

Question

I am using fluent-ffmpeg nodejs package to run ffmpeg for audio conversion on AWS Lambda. I am using this FFmpeg layer for lambda. Here is my code

 const bitrate64 = ffmpeg("file.mp3").audioBitrate('64k'); bitrate64.outputOptions([ '-preset slow', '-g 48', "-map", "0:0", '-hls_time 6', '-master_pl_name master.m3u8', '-hls_segment_filename 64k/fileSequence%d.ts' ]) .output('./64k/prog_index.m3u8') .on('progress', function(progress) { console.log('Processing 64k bitrate: ' + progress.percent + '% done') }) .on('end', function(err, stdout, stderr) { console.log('Finished processing 64k bitrate!') }) .run()

after running it via AWS lambda I get following error message

ERROR Uncaught Exception { "errorType": "Error", "errorMessage": "ffmpeg exited with code 1: Conversion failed!\n", "stack": [ "Error: ffmpeg exited with code 1: Conversion failed!", "", " at ChildProcess.<anonymous> (/var/task/node_modules/fluent-ffmpeg/lib/processor.js:182:22)", " at ChildProcess.emit (events.js:198:13)", " at ChildProcess.EventEmitter.emit (domain.js:448:20)", " at Process.ChildProcess._handle.onexit (internal/child_process.js:248:12)" ] }

I don't get any more info so I am not sure what's going on. Can anyone tell me what's wrong here and how can I enable more detailed logs?

Hassnain Alvi · Accepted Answer · 2020-07-14 17:24:57Z

4

Added on error callback to get a detailed error and found that there are permissions issue on lambda

 .on('error', function(err, stdout, stderr) { if (err) { console.log(err.message); console.log("stdout:\n" + stdout); console.log("stderr:\n" + stderr); reject("Error"); } })

answered Jul 14, 2020 at 17:24

Hassnain Alvi

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2 Comments

Adiii Over a year ago

you can also check cloud trail for function invocation error docs.aws.amazon.com/lambda/latest/dg/…

Hassnain Alvi Over a year ago

yeah i tried but there no errors because FFmpeg was started as a child process so we need to get error stack from that separately as mentioned above with a callback Otherwise, you will get FFmpeg exited with error code 1

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