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Sur d’autres sites (5685)
-
Using FFmpeg with URL input causes SIGSEGV in AWS Lambda (Python runtime)
26 mars, par Dave94I'm trying to implement a video converting solution on AWS Lambda following their article named Processing user-generated content using AWS Lambda and FFmpeg.
However when I run my command with
subprocess.Popen()
it returns-11
which translates to SIGSEGV (segmentation fault).
I've tried to process the video with the newest (4.3.1) static build from John Van Sickle's site as with the "official" ffmpeg-lambda-layer but it seems like it doesn't matter which one I use, the result is the same.

If I download the video to the Lambda's
/tmp
directory and add this downloaded file as an input to FFmpeg it works correctly (with the same parameters). However I'm trying to prevent this as the/tmp
directory's max. size is only 512 MB which is not quite enough for me.

The relevant code which returns SIGSEGV :


ffmpeg_cmd = '/opt/bin/ffmpeg -stream_loop -1 -i "' + s3_source_signed_url + '" -i /opt/bin/audio.mp3 -i /opt/bin/watermark.png -shortest -y -deinterlace -vcodec libx264 -pix_fmt yuv420p -preset veryfast -r 30 -g 60 -b:v 4500k -c:a copy -map 0:v:0 -map 1:a:0 -filter_complex scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2,setsar=1,overlay=(W-w)/2:(H-h)/2,format=yuv420p -loglevel verbose -f flv -'
command1 = shlex.split(ffmpeg_cmd)
p1 = subprocess.Popen(command1, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = p1.communicate()
print(p1.returncode) #prints -11



stderr of FFmpeg :


ffmpeg version 4.1.3-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2019 the FFmpeg developers
 built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
 configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzvbi --enable-libzimg
 libavutil 56. 22.100 / 56. 22.100
 libavcodec 58. 35.100 / 58. 35.100
 libavformat 58. 20.100 / 58. 20.100
 libavdevice 58. 5.100 / 58. 5.100
 libavfilter 7. 40.101 / 7. 40.101
 libswscale 5. 3.100 / 5. 3.100
 libswresample 3. 3.100 / 3. 3.100
 libpostproc 55. 3.100 / 55. 3.100
[tcp @ 0x728cc00] Starting connection attempt to 52.219.74.177 port 443
[tcp @ 0x728cc00] Successfully connected to 52.219.74.177 port 443
[h264 @ 0x729b780] Reinit context to 1280x720, pix_fmt: yuv420p
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://bucket.s3.amazonaws.com --> presigned url with 15 min expiration time':
 Metadata:
 major_brand : mp42
 minor_version : 0
 compatible_brands: mp42mp41isomavc1
 creation_time : 2015-09-02T07:42:42.000000Z
 Duration: 00:00:15.64, start: 0.000000, bitrate: 2640 kb/s
 Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(tv, bt709, left), 1280x720 [SAR 1:1 DAR 16:9], 2475 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)
 Metadata:
 creation_time : 2015-09-02T07:42:42.000000Z
 handler_name : L-SMASH Video Handler
 encoder : AVC Coding
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 160 kb/s (default)
 Metadata:
 creation_time : 2015-09-02T07:42:42.000000Z
 handler_name : L-SMASH Audio Handler
[mp3 @ 0x733f340] Skipping 0 bytes of junk at 1344.
Input #1, mp3, from '/opt/bin/audio.mp3':
 Metadata:
 encoded_by : Logic Pro X
 date : 2021-01-03
 coding_history : 
 time_reference : 158760000
 umid : 0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004500F9E4
 encoder : Lavf58.49.100
 Duration: 00:04:01.21, start: 0.025057, bitrate: 320 kb/s
 Stream #1:0: Audio: mp3, 44100 Hz, stereo, fltp, 320 kb/s
 Metadata:
 encoder : Lavc58.97
Input #2, png_pipe, from '/opt/bin/watermark.png':
 Duration: N/A, bitrate: N/A
 Stream #2:0: Video: png, 1 reference frame, rgba(pc), 701x190 [SAR 1521:1521 DAR 701:190], 25 tbr, 25 tbn, 25 tbc
[Parsed_scale_0 @ 0x7341140] w:1920 h:1080 flags:'bilinear' interl:0
Stream mapping:
 Stream #0:0 (h264) -> scale
 Stream #2:0 (png) -> overlay:overlay
 format -> Stream #0:0 (libx264)
 Stream #1:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
[h264 @ 0x72d8600] Reinit context to 1280x720, pix_fmt: yuv420p
[Parsed_scale_0 @ 0x733c1c0] w:1920 h:1080 flags:'bilinear' interl:0
[graph 0 input from stream 0:0 @ 0x7669200] w:1280 h:720 pixfmt:yuv420p tb:1/25 fr:25/1 sar:1/1 sws_param:flags=2
[graph 0 input from stream 2:0 @ 0x766a980] w:701 h:190 pixfmt:rgba tb:1/25 fr:25/1 sar:1521/1521 sws_param:flags=2
[auto_scaler_0 @ 0x7670240] w:iw h:ih flags:'bilinear' interl:0
[deinterlace_in_2_0 @ 0x766b680] auto-inserting filter 'auto_scaler_0' between the filter 'graph 0 input from stream 2:0' and the filter 'deinterlace_in_2_0'
[Parsed_scale_0 @ 0x733c1c0] w:1280 h:720 fmt:yuv420p sar:1/1 -> w:1920 h:1080 fmt:yuv420p sar:1/1 flags:0x2
[Parsed_pad_1 @ 0x733ce00] w:1920 h:1080 -> w:1920 h:1080 x:0 y:0 color:0x000000FF
[Parsed_setsar_2 @ 0x733da00] w:1920 h:1080 sar:1/1 dar:16/9 -> sar:1/1 dar:16/9
[auto_scaler_0 @ 0x7670240] w:701 h:190 fmt:rgba sar:1521/1521 -> w:701 h:190 fmt:yuva420p sar:1/1 flags:0x2
[Parsed_overlay_3 @ 0x733e440] main w:1920 h:1080 fmt:yuv420p overlay w:701 h:190 fmt:yuva420p
[Parsed_overlay_3 @ 0x733e440] [framesync @ 0x733e5a8] Selected 1/50 time base
[Parsed_overlay_3 @ 0x733e440] [framesync @ 0x733e5a8] Sync level 2
[libx264 @ 0x72c1c00] using SAR=1/1
[libx264 @ 0x72c1c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x72c1c00] profile Progressive High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x72c1c00] 264 - core 157 r2969 d4099dd - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=9 lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=1 keyint=60 keyint_min=6 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=abr mbtree=1 bitrate=4500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'pipe:':
 Metadata:
 major_brand : mp42
 minor_version : 0
 compatible_brands: mp42mp41isomavc1
 encoder : Lavf58.20.100
 Stream #0:0: Video: h264 (libx264), 1 reference frame ([7][0][0][0] / 0x0007), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 4500 kb/s, 30 fps, 1k tbn, 30 tbc (default)
 Metadata:
 encoder : Lavc58.35.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/4500000 buffer size: 0 vbv_delay: -1
 Stream #0:1: Audio: mp3 ([2][0][0][0] / 0x0002), 44100 Hz, stereo, fltp, 320 kb/s
 Metadata:
 encoder : Lavc58.97
frame= 27 fps=0.0 q=32.0 size= 247kB time=00:00:00.03 bitrate=59500.0kbits/s speed=0.0672x
frame= 77 fps= 77 q=27.0 size= 1115kB time=00:00:02.03 bitrate=4478.0kbits/s speed=2.03x
frame= 126 fps= 83 q=25.0 size= 2302kB time=00:00:04.00 bitrate=4712.4kbits/s speed=2.64x
frame= 177 fps= 87 q=26.0 size= 3576kB time=00:00:06.03 bitrate=4854.4kbits/s speed=2.97x
frame= 225 fps= 88 q=25.0 size= 4910kB time=00:00:07.96 bitrate=5047.8kbits/s speed=3.13x
frame= 272 fps= 89 q=27.0 size= 6189kB time=00:00:09.84 bitrate=5147.9kbits/s speed=3.22x
frame= 320 fps= 90 q=27.0 size= 7058kB time=00:00:11.78 bitrate=4907.5kbits/s speed=3.31x
frame= 372 fps= 91 q=26.0 size= 8098kB time=00:00:13.84 bitrate=4791.0kbits/s speed=3.4x



And that's the end of it. It should continue to do the processing until
00:04:02
as that's my audio's length but it stops here every time (approximately this is my video length).

The relevant code which works correctly :


ffmpeg_cmd = '/opt/bin/ffmpeg -stream_loop -1 -i "' + '/tmp/' + s3_source_key + '" -i /opt/bin/audio.mp3 -i /opt/bin/watermark.png -shortest -y -deinterlace -vcodec libx264 -pix_fmt yuv420p -preset veryfast -r 30 -g 60 -b:v 4500k -c:a copy -map 0:v:0 -map 1:a:0 -filter_complex scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2,setsar=1,overlay=(W-w)/2:(H-h)/2,format=yuv420p -loglevel verbose -f flv -'
command1 = shlex.split(ffmpeg_cmd)
p1 = subprocess.Popen(command1, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = p1.communicate()
print(p1.returncode) #prints 0



With this code it repeats the video as many times as it has to do to be as long as the audio.


Both versions work correctly on my computer.


This question is almost the same but in my case FFmpeg is able to access the signed URL.


-
how to scale server setup with ffmpeg for converting videos on website
26 mai 2020, par TomI have a website that will offer video conversion service with ffmpeg. Users will select some options and click a button to process and create a video. The site is currently using laravel/php. If there are many requests at the same time, how should I handle the scaling up ? How can it be done with traditional ISP ? How about cloud service, e.g. Amazon, Digital Ocean ?


-
AWS Lambda : ffmpeg thumbnails Generator : empty JPG
3 septembre 2020, par MagikeyWhen a video is uploaded on S3 i want to store a JPG screenshot.



On a lambda function with amazon AWS, i do :



...

 let tmpFile = createWriteStream(`/tmp/screenshot.jpg`)

 var ffmpeg = spawn(ffmpegPath, [
 "-ss","00:00:05",
 "-i", target,
 "-vf", "thumbnail,scale=200:200", 
 "-qscale:v" ,"2",
 "-frames:v", "1",
 "-f", "image2",
 "-c:v", "mjpeg",
 "pipe:1"
 ]);

 ffmpeg.stdout.pipe(tmpFile).on("error", err => {
 console.log("Error A: ",err);
 });

 ffmpeg.on('error', err => {
 console.log("Error B", err)
 reject()
 })

 ffmpeg.on('close', code => {
 tmpFile.end();
 console.log('Log A', ffmpeg);

 child_process.exec("echo `ls -l -R /tmp`",
 (error, stdout, stderr) => {
 console.log(stdout)
 });

 resolve()
 })
...




But the result is an empty JPG file in S3.



Logs shows no errors, my "target" is OK, stdout ls show me the empty JPG file.



I have try a lot of things, like use other version of ffmpeg but same.



There is the "console.log('Log A', ffmpeg)" :



ChildProcess {
 _events: [Object: null prototype] { error: [Function], close: [Function] },
 _eventsCount: 2,
 _maxListeners: undefined,
 _closesNeeded: 3,
 _closesGot: 3,
 connected: false,
 signalCode: 'SIGSEGV',
 exitCode: null,
 killed: false,
 spawnfile: '/opt/nodejs/ffmpeg',
 _handle: null,
 spawnargs: [
 '/opt/nodejs/ffmpeg',
 '-ss',
 '00:00:05',
 '-i',
 'https://xxxxxxxxx',
 '-vf',
 'thumbnail,scale=200:200',
 '-qscale:v',
 '2',
 '-frames:v',
 '1',
 '-f',
 'image2',
 '-v',
 '16',
 '-c:v',
 'mjpeg',
 'pipe:1'
 ],
 pid: 24,
 stdin: Socket {
 connecting: false,
 _hadError: false,
 _parent: null,
 _host: null,
 _readableState: ReadableState {
 objectMode: false,
 highWaterMark: 16384,
 buffer: BufferList { head: null, tail: null, length: 0 },
 length: 0,
 pipes: null,
 pipesCount: 0,
 flowing: null,
 ended: false,
 endEmitted: false,
 reading: false,
 sync: true,
 needReadable: false,
 emittedReadable: false,
 readableListening: false,
 resumeScheduled: false,
 paused: true,
 emitClose: false,
 autoDestroy: false,
 destroyed: true,
 defaultEncoding: 'utf8',
 awaitDrain: 0,
 readingMore: false,
 decoder: null,
 encoding: null
 },
 readable: false,
 _events: [Object: null prototype] { end: [Function: onReadableStreamEnd] },
 _eventsCount: 1,
 _maxListeners: undefined,
 _writableState: WritableState {
 objectMode: false,
 highWaterMark: 16384,
 finalCalled: false,
 needDrain: false,
 ending: false,
 ended: false,
 finished: false,
 destroyed: true,
 decodeStrings: false,
 defaultEncoding: 'utf8',
 length: 0,
 writing: false,
 corked: 0,
 sync: true,
 bufferProcessing: false,
 onwrite: [Function: bound onwrite],
 writecb: null,
 writelen: 0,
 bufferedRequest: null,
 lastBufferedRequest: null,
 pendingcb: 0,
 prefinished: false,
 errorEmitted: false,
 emitClose: false,
 autoDestroy: false,
 bufferedRequestCount: 0,
 corkedRequestsFree: [Object]
 },
 writable: false,
 allowHalfOpen: false,
 _sockname: null,
 _pendingData: null,
 _pendingEncoding: '',
 server: null,
 _server: null,
 [Symbol(asyncId)]: 5,
 [Symbol(kHandle)]: null,
 [Symbol(lastWriteQueueSize)]: 0,
 [Symbol(timeout)]: null,
 [Symbol(kBuffer)]: null,
 [Symbol(kBufferCb)]: null,
 [Symbol(kBufferGen)]: null,
 [Symbol(kBytesRead)]: 0,
 [Symbol(kBytesWritten)]: 0
 },
 stdout: Socket {
 connecting: false,
 _hadError: false,
 _parent: null,
 _host: null,
 _readableState: ReadableState {
 objectMode: false,
 highWaterMark: 16384,
 buffer: BufferList { head: null, tail: null, length: 0 },
 length: 0,
 pipes: null,
 pipesCount: 0,
 flowing: false,
 ended: true,
 endEmitted: true,
 reading: false,
 sync: false,
 needReadable: false,
 emittedReadable: false,
 readableListening: false,
 resumeScheduled: false,
 paused: false,
 emitClose: false,
 autoDestroy: false,
 destroyed: true,
 defaultEncoding: 'utf8',
 awaitDrain: 0,
 readingMore: false,
 decoder: null,
 encoding: null
 },
 readable: false,
 _events: [Object: null prototype] {
 end: [Function: onReadableStreamEnd],
 close: [Function]
 },
 _eventsCount: 2,
 _maxListeners: undefined,
 _writableState: WritableState {
 objectMode: false,
 highWaterMark: 16384,
 finalCalled: false,
 needDrain: false,
 ending: false,
 ended: false,
 finished: false,
 destroyed: true,
 decodeStrings: false,
 defaultEncoding: 'utf8',
 length: 0,
 writing: false,
 corked: 0,
 sync: true,
 bufferProcessing: false,
 onwrite: [Function: bound onwrite],
 writecb: null,
 writelen: 0,
 bufferedRequest: null,
 lastBufferedRequest: null,
 pendingcb: 0,
 prefinished: false,
 errorEmitted: false,
 emitClose: false,
 autoDestroy: false,
 bufferedRequestCount: 0,
 corkedRequestsFree: [Object]
 },
 writable: false,
 allowHalfOpen: false,
 _sockname: null,
 _pendingData: null,
 _pendingEncoding: '',
 server: null,
 _server: null,
 write: [Function: writeAfterFIN],
 [Symbol(asyncId)]: 6,
 [Symbol(kHandle)]: null,
 [Symbol(lastWriteQueueSize)]: 0,
 [Symbol(timeout)]: null,
 [Symbol(kBuffer)]: null,
 [Symbol(kBufferCb)]: null,
 [Symbol(kBufferGen)]: null,
 [Symbol(kBytesRead)]: 0,
 [Symbol(kBytesWritten)]: 0
 },
 stderr: Socket {
 connecting: false,
 _hadError: false,
 _parent: null,
 _host: null,
 _readableState: ReadableState {
 objectMode: false,
 highWaterMark: 16384,
 buffer: BufferList { head: null, tail: null, length: 0 },
 length: 0,
 pipes: null,
 pipesCount: 0,
 flowing: null,
 ended: true,
 endEmitted: true,
 reading: false,
 sync: false,
 needReadable: false,
 emittedReadable: false,
 readableListening: false,
 resumeScheduled: false,
 paused: true,
 emitClose: false,
 autoDestroy: false,
 destroyed: true,
 defaultEncoding: 'utf8',
 awaitDrain: 0,
 readingMore: false,
 decoder: null,
 encoding: null
 },
 readable: false,
 _events: [Object: null prototype] {
 end: [Function: onReadableStreamEnd],
 close: [Function]
 },
 _eventsCount: 2,
 _maxListeners: undefined,
 _writableState: WritableState {
 objectMode: false,
 highWaterMark: 16384,
 finalCalled: false,
 needDrain: false,
 ending: false,
 ended: false,
 finished: false,
 destroyed: true,
 decodeStrings: false,
 defaultEncoding: 'utf8',
 length: 0,
 writing: false,
 corked: 0,
 sync: true,
 bufferProcessing: false,
 onwrite: [Function: bound onwrite],
 writecb: null,
 writelen: 0,
 bufferedRequest: null,
 lastBufferedRequest: null,
 pendingcb: 0,
 prefinished: false,
 errorEmitted: false,
 emitClose: false,
 autoDestroy: false,
 bufferedRequestCount: 0,
 corkedRequestsFree: [Object]
 },
 writable: false,
 allowHalfOpen: false,
 _sockname: null,
 _pendingData: null,
 _pendingEncoding: '',
 server: null,
 _server: null,
 write: [Function: writeAfterFIN],
 [Symbol(asyncId)]: 7,
 [Symbol(kHandle)]: null,
 [Symbol(lastWriteQueueSize)]: 0,
 [Symbol(timeout)]: null,
 [Symbol(kBuffer)]: null,
 [Symbol(kBufferCb)]: null,
 [Symbol(kBufferGen)]: null,
 [Symbol(kBytesRead)]: 0,
 [Symbol(kBytesWritten)]: 0
 },
 stdio: [
 Socket {
 connecting: false,
 _hadError: false,
 _parent: null,
 _host: null,
 _readableState: [ReadableState],
 readable: false,
 _events: [Object: null prototype],
 _eventsCount: 1,
 _maxListeners: undefined,
 _writableState: [WritableState],
 writable: false,
 allowHalfOpen: false,
 _sockname: null,
 _pendingData: null,
 _pendingEncoding: '',
 server: null,
 _server: null,
 [Symbol(asyncId)]: 5,
 [Symbol(kHandle)]: null,
 [Symbol(lastWriteQueueSize)]: 0,
 [Symbol(timeout)]: null,
 [Symbol(kBuffer)]: null,
 [Symbol(kBufferCb)]: null,
 [Symbol(kBufferGen)]: null,
 [Symbol(kBytesRead)]: 0,
 [Symbol(kBytesWritten)]: 0
 },
 Socket {
 connecting: false,
 _hadError: false,
 _parent: null,
 _host: null,
 _readableState: [ReadableState],
 readable: false,
 _events: [Object: null prototype],
 _eventsCount: 2,
 _maxListeners: undefined,
 _writableState: [WritableState],
 writable: false,
 allowHalfOpen: false,
 _sockname: null,
 _pendingData: null,
 _pendingEncoding: '',
 server: null,
 _server: null,
 write: [Function: writeAfterFIN],
 [Symbol(asyncId)]: 6,
 [Symbol(kHandle)]: null,
 [Symbol(lastWriteQueueSize)]: 0,
 [Symbol(timeout)]: null,
 [Symbol(kBuffer)]: null,
 [Symbol(kBufferCb)]: null,
 [Symbol(kBufferGen)]: null,
 [Symbol(kBytesRead)]: 0,
 [Symbol(kBytesWritten)]: 0
 },
 Socket {
 connecting: false,
 _hadError: false,
 _parent: null,
 _host: null,
 _readableState: [ReadableState],
 readable: false,
 _events: [Object: null prototype],
 _eventsCount: 2,
 _maxListeners: undefined,
 _writableState: [WritableState],
 writable: false,
 allowHalfOpen: false,
 _sockname: null,
 _pendingData: null,
 _pendingEncoding: '',
 server: null,
 _server: null,
 write: [Function: writeAfterFIN],
 [Symbol(asyncId)]: 7,
 [Symbol(kHandle)]: null,
 [Symbol(lastWriteQueueSize)]: 0,
 [Symbol(timeout)]: null,
 [Symbol(kBuffer)]: null,
 [Symbol(kBufferCb)]: null,
 [Symbol(kBufferGen)]: null,
 [Symbol(kBytesRead)]: 0,
 [Symbol(kBytesWritten)]: 0
 }
 ]
} ```