Recherche avancée

Sur d’autres sites (7212)

• ffmpeg won't exit normally with SIGINT

  2 mars 2021, par ntstlkr

  I'm trying to record video with ffmpeg and all works fine when I call stopRecord() function inside timeout :

  


  frame=  147 fps= 18 q=-1.0 Lsize=     290kB time=00:00:09.91 bitrate= 239.8kbits/s speed=1.24x    
video:129kB audio:156kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 
2.159774%
[aac @ 0x55e825dbdc40] 
Qavg: 241.892
Exiting normally, received signal 2.
SIGINT
Recording process exit, code: 255, signal: null
Recording stopped


  


  But ffmpeg process won't exit and stays alive when I call stopRecord() function on API request inside express router.

  


  // here I create child process and try to close it in timeout which works.
export async function startRecord(producers: any, router: any, folderName: string, fileName: string) {
const sdp = `v=0
o=- 0 0 IN IP4 127.0.0.1
s=-
c=IN IP4 127.0.0.1
t=0 0
m=audio ${ports[0]} RTP/AVPF 111
a=rtcp:${ports[0] + 1}
a=rtpmap:111 opus/48000/2
a=fmtp:111 minptime=10;useinbandfec=1
m=video ${ports[1]} RTP/AVPF 125
a=rtcp:${ports[1] + 1}
a=rtpmap:125 H264/90000
a=fmtp:125 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f`;

const cmdArgStr = [
    "-protocol_whitelist pipe,rtp,udp",
    "-fflags +genpts",
    "-f sdp",
    "-i pipe:0",
    "-map 0:a:0 -c:a aac",
    "-map 0:v:0 -c:v copy",
    "-f mp4 -strict experimental",
    `-y recording/${folderName}/${fileName}.mp4`,
].join(" ").trim();

let process = spawn('ffmpeg', cmdArgStr.split(/\s+/));

process.stdin.write(sdp);
process.stdin.end();

process.on("error", (err: string) => {
    console.log('error');
    console.error("Recording process error:", err);
});

process.on("exit", (code: string, signal: string) => {
    process.kill('SIGINT');
    console.log('SIGINT');
    console.log("Recording process exit, code: %d, signal: %s", code, signal);

    if (!signal || signal === "SIGINT") {


           console.log("Recording stopped");
        } else {
            console.warn(
                "Recording process didn't exit cleanly, output file might be corrupt"
            );
        }
    });

    process.stderr.on("data", (chunk: string) => {
        chunk
            .toString()
            .split(/\r?\n/g)
            .filter(Boolean)
            .forEach(async (line: any) => {
                console.log(line);
                if (line.startsWith("ffmpeg version")) {
                    for (const consumer of consumers) {
                        await consumer.resume();
                    }
                }
            });
    });

    // this works!!
    setTimeout(() => {
        stopRecord(process);
    }, 10000);


    return process;
}

// this not works!! I call this function externally inside express router on API request
export function stopRecord(process: any) {
    process.kill('SIGINT');
}


  


  Linux process stays alive when I call stopRecord() inside express router, but property "killed" of process marked as true. It's only works when I send "SIGKILL" inside express router. I need to exit normally, because ffmpeg needs to save mp4 metadata.

  


  So the general question is : Why stopRecord function works inside timeout even with "SIGINT" code, but it doesn't when I call this function externally inside express router. Only "SIGKILL" works when I call stopRecord() inside express router.

  


  Renaming my "process" field doesn't help.

  


  I really don't understand why the same function works different inside timeout and inside express router. And I very thankful for any advice !

  


  I'm using node, typescript and express.

  


• ffmpeg : stream -> edit -> stream ERROR : av_interleaved_write_frame() : Operation not permitted Error writing trailer of rtmps

  14 février 2021, par Yurii Kyparus

  I'm reading the horizontal hls stream, placing it in the middle of the vertical layout.

  


  


  


   ffmpeg  -i "https://......a1f6039622.m3u8" -vf "pad=iw:2*trunc(iw*16/18):(ow-iw)/2:(oh-ih)/2,setsar=1" -c:v libx264 -pix_fmt yuv420p -profile:v main -c:a aac  -f flv -flvflags no_duration_filesize  rtmps://...e.live-video.net:443/app/secret_key

  


  


  

Getting next error :


  


  


  WriteN, RTMP send error 32 (129 bytes)54kB time=00:00:10.22 bitrate=1164.8kbits/s speed=3.81x
WriteN, RTMP send error 0 (91 bytes)
WriteN, RTMP send error 9 (42 bytes)
av_interleaved_write_frame(): Operation not permitted
Error writing trailer of rtmps://94e...net:443/app/...gSK: Operation not permitted
frame=  308 fps= 13 q=29.0 Lsize=    1535kB time=00:00:10.80 bitrate=1164.0kbits/s speed=0.44x
video:1396kB audio:177kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[libx264 @ 0x7ff3c8888000] frame I:2     Avg QP:12.40  size: 46750
[libx264 @ 0x7ff3c8888000] frame P:81    Avg QP:17.80  size: 13636
[libx264 @ 0x7ff3c8888000] frame B:225   Avg QP:21.47  size:  3330
[libx264 @ 0x7ff3c8888000] consecutive B-frames:  1.6%  2.6%  1.0% 94.8%
[libx264 @ 0x7ff3c8888000] mb I  I16..4: 82.0%  0.0% 18.0%
[libx264 @ 0x7ff3c8888000] mb P  I16..4:  5.7%  0.0%  1.0%  P16..4: 13.6%  4.3%  1.8%  0.0%  0.0%    skip:73.6%
[libx264 @ 0x7ff3c8888000] mb B  I16..4:  0.5%  0.0%  0.0%  B16..8:  9.5%  1.2%  0.1%  direct: 1.7%  skip:87.0%  L0:43.7% L1:52.7% BI: 3.5%
[libx264 @ 0x7ff3c8888000] coded y,uvDC,uvAC intra: 11.8% 49.2% 2.0% inter: 1.9% 5.8% 0.0%
[libx264 @ 0x7ff3c8888000] i16 v,h,dc,p: 69% 15%  9%  7%
[libx264 @ 0x7ff3c8888000] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 38% 17% 19%  4%  5%  7%  4%  5%  3%
[libx264 @ 0x7ff3c8888000] i8c dc,h,v,p: 58% 15% 26%  2%
[libx264 @ 0x7ff3c8888000] Weighted P-Frames: Y:28.4% UV:0.0%
[libx264 @ 0x7ff3c8888000] ref P L0: 63.4% 15.3% 15.7%  5.0%  0.6%
[libx264 @ 0x7ff3c8888000] ref B L0: 90.5%  7.7%  1.8%
[libx264 @ 0x7ff3c8888000] ref B L1: 96.2%  3.8%
[libx264 @ 0x7ff3c8888000] kb/s:1517.33
[aac @ 0x7ff3c8889800] Qavg: 5013.114

  


  


  



• How to get the output resolution after successful encode ?

  11 janvier 2021, par Daniel Birowsky Popeski

  I'm using fluent-ffmpeg and I'm already able to get the output resolution in the 'on end' event :

  


  createFfmpegCommand()
  .input(fs.createReadStream(readPath))
  .noAudio()
  .fps(30)
  .format('mp4')
  .videoCodec('libx264')
  .videoFilter([
   {filter: 'scale', options: '1920:1920:force_original_aspect_ratio=decrease'},
   {filter: 'setpts', options: '1.5*PTS'},
  ])
  .outputOption('-crf 30')
  .outputOption('-movflags frag_keyframe')
  .outputOption('-movflags +faststart')
  .output(mp4WriteStream)
  .on('start', () => console.log('processing started'))
  .on('error', err => console.error('err', err))
  .on('end', (_,res) => console.log('processing success',res))
  .run();


  


  However, i'd like it to be machine-readable (json or xml). Instead, it looks like this :

  


   ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with Apple clang version 12.0.0 (clang-1200.0.32.28)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.1_8 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'pipe:0':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42mp41
    creation_time   : 2020-05-28T09:51:18.000000Z
  Duration: 00:00:02.23, start: 0.000000, bitrate: N/A
    Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 9108 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2020-05-28T09:51:18.000000Z
      handler_name    : ?Mainconcept Video Media Handler
      encoder         : AVC Coding
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
[libx264 @ 0x7f92d9808e00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7f92d9808e00] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x7f92d9808e00] 264 - core 161 r3027 4121277 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 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=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=30.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'pipe:1':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42mp41
    encoder         : Lavf58.45.100
    Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
    Metadata:
      creation_time   : 2020-05-28T09:51:18.000000Z
      handler_name    : ?Mainconcept Video Media Handler
      encoder         : Lavc58.91.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame=   64 fps=0.0 q=36.0 size=       0kB time=00:00:00.16 bitrate=   1.7kbits/s dup=21 drop=0 speed=0.316x    
frame=  100 fps=0.0 q=-1.0 Lsize=     108kB time=00:00:03.23 bitrate= 274.7kbits/s dup=33 drop=0 speed=3.25x    
video:106kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.906519%
[libx264 @ 0x7f92d9808e00] frame I:1     Avg QP:25.71  size:  8782
[libx264 @ 0x7f92d9808e00] frame P:25    Avg QP:30.10  size:  2308
[libx264 @ 0x7f92d9808e00] frame B:74    Avg QP:27.92  size:   564
[libx264 @ 0x7f92d9808e00] consecutive B-frames:  1.0%  0.0%  3.0% 96.0%
[libx264 @ 0x7f92d9808e00] mb I  I16..4: 19.4% 77.2%  3.3%
[libx264 @ 0x7f92d9808e00] mb P  I16..4:  0.3%  0.8%  0.1%  P16..4:  4.6%  1.3%  0.4%  0.0%  0.0%    skip:92.5%
[libx264 @ 0x7f92d9808e00] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  4.0%  0.2%  0.0%  direct: 0.0%  skip:95.7%  L0:44.2% L1:54.8% BI: 1.0%
[libx264 @ 0x7f92d9808e00] 8x8 transform intra:75.0% inter:78.3%
[libx264 @ 0x7f92d9808e00] coded y,uvDC,uvAC intra: 8.8% 8.8% 2.4% inter: 0.3% 0.2% 0.0%
[libx264 @ 0x7f92d9808e00] i16 v,h,dc,p: 77%  7% 10%  6%
[libx264 @ 0x7f92d9808e00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 48%  3% 42%  1%  1%  1%  1%  1%  1%
[libx264 @ 0x7f92d9808e00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 16% 26%  7%  4%  4%  3%  5%  6%
[libx264 @ 0x7f92d9808e00] i8c dc,h,v,p: 89%  5%  5%  1%
[libx264 @ 0x7f92d9808e00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7f92d9808e00] ref P L0: 66.9% 11.1% 16.7%  5.3%
[libx264 @ 0x7f92d9808e00] ref B L0: 87.5%  9.9%  2.6%
[libx264 @ 0x7f92d9808e00] ref B L1: 96.4%  3.6%
[libx264 @ 0x7f92d9808e00] kb/s:259.80


  


  Which doesn't let me be comfortable that my regex to extract the output resolution is always going to work.

  


  Also, I don't wanna make another call/fileread just to get the resolution. Mainly because my files are stored in S3, where ffprobe doesn't work.