This micro service is a asynchronous video converter.
- flask: web application
- ffmpeg: video converter
- celery: asynchronous task queue
- redis: celery result backend
- RabbitMQ: celery broker
- mongodb: file info and file storage database
celery -A tasks worker --loglevel=infotl → Top Left
tr → Top Right
bl → Bottom Left
br → Bottom Right
get:
<server_url>/upload?url=http:https://example.com/input.mpg&webhook=http:https://127.0.0.1&watermark=bl
post:
<server_url>/upload
form parameter key: `file`
response:
{
"result": {
"_link": {
"progress": "http:https://127.0.0.1:5000/status/3573f19f-84b1-4a3b-bda2-300ecb96e6ed"
},
"task_id": "3573f19f-84b1-4a3b-bda2-300ecb96e6ed"
},
"status": "ACCEPTED"
}<server_url>/status/<task_id>
example pending response:
X-Percent → 38
X-State → In Progress
X-Status → PROGRESS
complete response
X-Percent → 100
X-State → SUCCESS
X-Status → Completed
{
"task_id": "4d408ec6-c5bd-4564-8a77-5c9933a08cac",
"status": "OK",
"key": "5a390fb4c09e5f41a4dd8715",
"timestamp_now": 1513689012,
"file": {
"md5": "c0eadd80927d010be9fc3c96394786df",
"size": 487510,
"seconds": 5,
"date_upload": "2017-12-19 13:10:12.592000"
},
"meta": {
"ExifToolVersion": 10.1,
"FileSize": "476 kB",
"FileModifyDate": "2017:12:19 16:40:11+03:30",
"FileAccessDate": "2017:12:19 16:40:12+03:30",
"FileInodeChangeDate": "2017:12:19 16:40:11+03:30",
"FileType": "MP4",
"FileTypeExtension": "mp4",
"MIMEType": "video/mp4",
"MajorBrand": "MP4 Base Media v1 [IS0 14496-12:2003]",
"MinorVersion": "0.2.0",
"CompatibleBrands": [
"isom",
"iso2",
"avc1",
"mp41"
],
"MovieDataSize": 482471,
"MovieDataOffset": 48,
"MovieHeaderVersion": 0,
"CreateDate": "0000:00:00 00:00:00",
"ModifyDate": "0000:00:00 00:00:00",
"TimeScale": 1000,
"Duration": "5.33 s",
"PreferredRate": 1,
"PreferredVolume": "100.00%",
"PreviewTime": "0 s",
"PreviewDuration": "0 s",
"PosterTime": "0 s",
"SelectionTime": "0 s",
"SelectionDuration": "0 s",
"CurrentTime": "0 s",
"NextTrackID": 3,
"TrackHeaderVersion": 0,
"TrackCreateDate": "0000:00:00 00:00:00",
"TrackModifyDate": "0000:00:00 00:00:00",
"TrackID": 1,
"TrackDuration": "5.28 s",
"TrackLayer": 0,
"TrackVolume": "0.00%",
"ImageWidth": 640,
"ImageHeight": 360,
"GraphicsMode": "srcCopy",
"OpColor": "0 0 0",
"CompressorID": "avc1",
"SourceImageWidth": 640,
"SourceImageHeight": 360,
"XResolution": 72,
"YResolution": 72,
"BitDepth": 24,
"VideoFrameRate": 25,
"MatrixStructure": "1 0 0 0 1 0 0 0 1",
"MediaHeaderVersion": 0,
"MediaCreateDate": "0000:00:00 00:00:00",
"MediaModifyDate": "0000:00:00 00:00:00",
"MediaTimeScale": 48000,
"MediaDuration": "5.33 s",
"MediaLanguageCode": "und",
"HandlerDescription": "SoundHandler",
"Balance": 0,
"AudioFormat": "mp4a",
"AudioChannels": 2,
"AudioBitsPerSample": 16,
"AudioSampleRate": 48000,
"HandlerType": "Metadata",
"HandlerVendorID": "Apple",
"Encoder": "Lavf56.40.101",
"AvgBitrate": "724 kbps",
"ImageSize": "640x360",
"Megapixels": 0.23,
"Rotation": 0
},
"_link": {
"video": "http:https://127.0.0.1:5000/pull/5a390fb4c09e5f41a4dd8715?key=yjvadhWOuQSbTuOenIGHa5qMWNKD37uz",
"screenshot": "http:https://127.0.0.1:5000/pull/5a390fb4c09e5f41a4dd8718?key=yjvadhWOuQSbTuOenIGHa5qMWNKD37uz"
}
}{
"task_id": "fbfc3e73-5ae8-43ba-a30f-fa25e23f3429",
"status": "FAILED",
"timestamp_now": 1512398950,
"exception": "No active exception to reraise"
}
<server_url>/pull/<task_id>?key=<key>&type=<video|screenshot>
db.fs.files.createIndex( { "uploadDate": 1 }, { expireAfterSeconds: 3600 * 2 } )