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  • Files gets corrupted after resizing with ffmpeg

    26 octobre 2018, par Liam

    I’m making a bot that sends videos to instagram. However instagram only allows 1:1 aspect ratio videos, so I’m trying to use ffmpeg in python (ffmpy module) to resize the video (.mp4) file.

    This is the ffmpeg code I’m using
    -analyzeduration 20M -probesize 20M -y -i FILE.MP4 -vf "scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2:white NEW_FILE.MP4

    However this corrupts the file ? The size of the file before resizing is 1.815305 MB but after the ffmpeg job it’s 0.058714 MB. So what gives ?

    (I also tried using -aspect 1:1 but that corrupts the file too)

    Ffmpy seems to work fine, because sometimes if the file is over 20 MB i run this to reduce the file size -y -i FILE.MP4 -vcodec libx264 -crf 24 NEW_FILE.MP4 and that works fine.

    Here’s the full log if needed :

    Oct 23 07:32:03 test-instabot app/worker.1: MP4 SIZE BEFORE ASPECT RESIZE IS: 1.815305 MB 
    
Oct 23 07:32:03 test-instabot app/worker.1: ffmpeg version 4.0.2-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers 
    
Oct 23 07:32:03 test-instabot app/worker.1:   built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516 
    
Oct 23 07:32:03 test-instabot app/worker.1:   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-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-libzimg 
    
Oct 23 07:32:03 test-instabot app/worker.1:   libavutil      56. 14.100 / 56. 14.100 
    
Oct 23 07:32:03 test-instabot app/worker.1:   libavcodec     58. 18.100 / 58. 18.100 
    
Oct 23 07:32:03 test-instabot app/worker.1:   libavformat    58. 12.100 / 58. 12.100 
    
Oct 23 07:32:03 test-instabot app/worker.1:   libavdevice    58.  3.100 / 58.  3.100 
    
Oct 23 07:32:03 test-instabot app/worker.1:   libavfilter     7. 16.100 /  7. 16.100 
    
Oct 23 07:32:03 test-instabot app/worker.1:   libswscale      5.  1.100 /  5.  1.100 
    
Oct 23 07:32:03 test-instabot app/worker.1:   libswresample   3.  1.100 /  3.  1.100 
    
Oct 23 07:32:03 test-instabot app/worker.1:   libpostproc    55.  1.100 / 55.  1.100 
    
Oct 23 07:32:03 test-instabot app/worker.1: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './media/t4nYbas.mp4': 
    
Oct 23 07:32:03 test-instabot app/worker.1:   Metadata: 
    
Oct 23 07:32:03 test-instabot app/worker.1:     major_brand     : isom 
    
Oct 23 07:32:03 test-instabot app/worker.1:     minor_version   : 512 
    
Oct 23 07:32:03 test-instabot app/worker.1:     compatible_brands: isomiso2avc1mp41 
    
Oct 23 07:32:03 test-instabot app/worker.1:     encoder         : Lavf58.12.100 
    
Oct 23 07:32:03 test-instabot app/worker.1:   Duration: 00:00:06.04, start: 0.000000, bitrate: 2404 kb/s 
    
Oct 23 07:32:03 test-instabot app/worker.1:     Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x854, 2402 kb/s, 29.98 fps, 29.98 tbr, 19184 tbn, 59.95 tbc (default) 
    
Oct 23 07:32:03 test-instabot app/worker.1:     Metadata: 
    
Oct 23 07:32:03 test-instabot app/worker.1:       handler_name    : VideoHandler 
    
Oct 23 07:32:03 test-instabot app/worker.1: Stream mapping: 
    
Oct 23 07:32:03 test-instabot app/worker.1:   Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) 
    
Oct 23 07:32:03 test-instabot app/worker.1: Press [q] to stop, [?] for help 
    
Oct 23 07:32:03 test-instabot app/worker.1: [swscaler @ 0x6882200] Warning: data is not aligned! This can lead to a speed loss 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] profile High, level 3.2 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 
    
Oct 23 07:32:03 test-instabot app/worker.1: Output #0, mp4, to './media/t4nYbas.mp4': 
    
Oct 23 07:32:03 test-instabot app/worker.1:   Metadata: 
    
Oct 23 07:32:03 test-instabot app/worker.1:     major_brand     : isom 
    
Oct 23 07:32:03 test-instabot app/worker.1:     minor_version   : 512 
    
Oct 23 07:32:03 test-instabot app/worker.1:     compatible_brands: isomiso2avc1mp41 
    
Oct 23 07:32:03 test-instabot app/worker.1:     encoder         : Lavf58.12.100 
    
Oct 23 07:32:03 test-instabot app/worker.1:     Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1080x1080, q=-1--1, 29.98 fps, 19184 tbn, 29.98 tbc (default) 
    
Oct 23 07:32:03 test-instabot app/worker.1:     Metadata: 
    
Oct 23 07:32:03 test-instabot app/worker.1:       handler_name    : VideoHandler 
    
Oct 23 07:32:03 test-instabot app/worker.1:       encoder         : Lavc58.18.100 libx264 
    
Oct 23 07:32:03 test-instabot app/worker.1:     Side data: 
    
Oct 23 07:32:03 test-instabot app/worker.1:       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1 
    
Oct 23 07:32:03 test-instabot app/worker.1: frame=    1 fps=0.0 q=29.0 Lsize=      57kB time=00:00:00.00 bitrate=9032923.1kbits/s speed=7.89e-05x     
    
Oct 23 07:32:03 test-instabot app/worker.1: video:57kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.383109% 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] frame I:1     Avg QP:29.91  size: 57223 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] mb I  I16..4: 12.6% 74.9% 12.5% 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] 8x8 transform intra:74.9% 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] coded y,uvDC,uvAC intra: 52.6% 24.4% 1.0% 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] i16 v,h,dc,p: 94%  0%  5%  1% 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 10% 28%  4%  6%  5%  7%  5%  7% 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 17% 15%  7%  9%  7%  9%  7%  9% 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] i8c dc,h,v,p: 78%  9% 12%  2% 
    
Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] kb/s:13722.08 
    
Oct 23 07:32:03 test-instabot app/worker.1: MP4 SIZE AFTER ASPECT RESIZE IS: 0.058714 MB

  • FFMPEG unwanted rotation

    5 mars 2015, par Ben

    When I add a watermark image with a landscape orientation to a video that has a portrait orientation the video automatically rotates to landscape. How do I prevent this ? Also, the audio file isn’t being merged into the output. How can I include the audio.mp3 to be the sole audio track ?

    ffmpeg -i 1425500438.MOV -i hashtag.png -itsoffset 00:00:07 -i audio.mp3  -filter_complex "[0:v]curves=preset=vintage[a];[a][1:v]overlay=10:10[out]"  -vcodec libx264 -pix_fmt yuv420p -ss 0:0:07 -t 14 -map "[out]" -y processed.mov

    EDIT****

    ffmpeg version 2.1.4 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Mar 19 2014 12:48:02 with Apple LLVM version 5.1 (clang-503.0.38) (based on LLVM 3.4svn)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.1.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1/include/openjpeg-1.5 '
    
  libavutil      52. 48.101 / 52. 48.101
    
  libavcodec     55. 39.101 / 55. 39.101
    
  libavformat    55. 19.104 / 55. 19.104
    
  libavdevice    55.  5.100 / 55.  5.100
    
  libavfilter     3. 90.100 /  3. 90.100
    
  libavresample   1.  1.  0 /  1.  1.  0
    
  libswscale      2.  5.101 /  2.  5.101
    
  libswresample   0. 17.104 /  0. 17.104
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1425500438.MOV':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 0
    
    compatible_brands: qt  
    
    creation_time   : 2015-03-04 20:20:14
    
    encoder         : 8.1.2
    
    encoder-eng     : 8.1.2
    
    date            : 2015-03-04T14:20:14-0600
    
    date-eng        : 2015-03-04T14:20:14-0600
    
    model           : iPhone 6
    
    model-eng       : iPhone 6
    
    make            : Apple
    
    make-eng        : Apple
    
  Duration: 00:00:10.56, start: 0.000000, bitrate: 703 kb/s
    
    Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 480x360, 696 kb/s, 30.02 fps, 30.08 tbr, 600 tbn, 1200 tbc (default)
    
    Metadata:
    
      rotate          : 90
    
      creation_time   : 2015-03-04 20:20:14
    
      handler_name    : Core Media Data Handler
    
Input #1, image2, from 'hashtag.png':
    
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    
    Stream #1:0: Video: png, rgba, 131x29, 25 tbr, 25 tbn, 25 tbc
    
Input #2, mp3, from 'audio.mp3':
    
  Metadata:
    
    encoder         : Lavf55.19.104
    
  Duration: 00:00:10.44, start: 0.000000, bitrate: 128 kb/s
    
    Stream #2:0: Audio: mp3, 16000 Hz, stereo, s16p, 128 kb/s
    
[libx264 @ 0x7f9894017200] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX AVX2 FMA3 BMI1 BMI2
    
[libx264 @ 0x7f9894017200] profile High, level 3.0
    
[libx264 @ 0x7f9894017200] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - 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=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mov, to 'processed.mov':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 0
    
    compatible_brands: qt  
    
    make-eng        : Apple
    
    make            : Apple
    
    encoder-eng     : 8.1.2
    
    date            : 2015-03-04T14:20:14-0600
    
    date-eng        : 2015-03-04T14:20:14-0600
    
    model           : iPhone 6
    
    model-eng       : iPhone 6
    
    encoder         : Lavf55.19.104
    
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 480x360, q=-1--1, 11552 tbn, 30.08 tbc (default)
    
Stream mapping:
    
  Stream #0:0 (h264) -> curves
    
  Stream #1:0 (png) -> overlay:overlay
    
  overlay -> Stream #0:0 (libx264)
    
Press [q] to stop, [?] for help
    
frame=  422 fps=413 q=-1.0 Lsize=     361kB time=00:00:13.96 bitrate= 211.9kbits/s dup=303 drop=0    
    
video:356kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.574185%
    
[libx264 @ 0x7f9894017200] frame I:2     Avg QP:20.09  size: 19764
    
[libx264 @ 0x7f9894017200] frame P:134   Avg QP:22.29  size:  2248
    
[libx264 @ 0x7f9894017200] frame B:286   Avg QP:28.02  size:    79
    
[libx264 @ 0x7f9894017200] consecutive B-frames:  9.2%  0.0%  3.6% 87.2%
    
[libx264 @ 0x7f9894017200] mb I  I16..4:  6.6% 45.0% 48.4%
    
[libx264 @ 0x7f9894017200] mb P  I16..4:  1.8%  2.4%  0.7%  P16..4: 40.8% 13.6%  4.5%  0.0%  0.0%    skip:36.1%
    
[libx264 @ 0x7f9894017200] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 10.9%  0.1%  0.0%  direct: 0.0%  skip:89.0%  L0:56.5% L1:42.3% BI: 1.2%
    
[libx264 @ 0x7f9894017200] 8x8 transform intra:47.6% inter:61.5%
    
[libx264 @ 0x7f9894017200] coded y,uvDC,uvAC intra: 51.3% 81.4% 36.7% inter: 5.6% 8.5% 0.5%
    
[libx264 @ 0x7f9894017200] i16 v,h,dc,p: 21% 27% 12% 40%
    
[libx264 @ 0x7f9894017200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 27% 19%  5%  4%  4%  7%  5%  6%
    
[libx264 @ 0x7f9894017200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 22% 12%  4%  5%  5%  6%  4%  6%
    
[libx264 @ 0x7f9894017200] i8c dc,h,v,p: 40% 28% 22% 10%
    
[libx264 @ 0x7f9894017200] Weighted P-Frames: Y:16.4% UV:10.4%
    
[libx264 @ 0x7f9894017200] ref P L0: 73.7% 12.2% 11.7%  2.3%  0.2%
    
[libx264 @ 0x7f9894017200] ref B L0: 93.5%  5.8%  0.7%
    
[libx264 @ 0x7f9894017200] ref B L1: 97.2%  2.8%
    
[libx264 @ 0x7f9894017200] kb/s:207.25

  • Ffmpeg live streaming to Youtube - "Connect streaming software to start preview"

    10 septembre 2019, par Zoltan Fedor

    I have an rtsp feed (H.265) which I am trying to stream to YouTube Live, but whatever I do YouTube Studio just showing the waiting icon with "Connect streaming software to start preview".

    .sh file for streaming :

    VBR="1000k"
    
FPS="30"
    
QUAL="ultrafast"
    
YOUTUBE_URL="rtmp://b.rtmp.youtube.com/live2"
    
SOURCE="rtsp://qhatever.org:8555/whatever.sdp"      
    
KEY="xxxx-xxxx-xxxx-xxxx"
    

    
~/ffmpeg-git-20190905-amd64-static/ffmpeg \
    
    -thread_queue_size 512 \
    
    -rtsp_transport tcp -i "$SOURCE" \
    
    -f lavfi -i anullsrc \
    
    -vcodec libx264 -pix_fmt yuvj420p -preset $QUAL -r $FPS -g $(($FPS * 2)) -b:v 2250k -minrate $VBR -maxrate 6000k -bufsize 6000k -keyint_min 60 \
    
    -acodec libmp3lame -ar 44100 -b:a 128k \
    
    -f flv "$YOUTUBE_URL/$KEY"

    Ffmpeg’s output :

    ffmpeg version N-49800-g2b66c757d6-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-libgme --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-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
    
  libavutil      56. 35.100 / 56. 35.100
    
  libavcodec     58. 56.101 / 58. 56.101
    
  libavformat    58. 32.104 / 58. 32.104
    
  libavdevice    58.  9.100 / 58.  9.100
    
  libavfilter     7. 58.102 /  7. 58.102
    
  libswscale      5.  6.100 /  5.  6.100
    
  libswresample   3.  6.100 /  3.  6.100
    
  libpostproc    55.  6.100 / 55.  6.100
    
Input #0, rtsp, from 'rtsp://whatever.org:8555/whatever.sdp':
    
  Metadata:
    
    title           : streamed by the Rtsp Server
    
    comment         : RTSP_STREAM_0
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: hevc (Main), yuvj420p(pc, bt709), 1920x1080, 30 fps, 30 tbr, 90k tbn, 30 tbc
    
    Stream #0:1: Data: none
    
Input #1, lavfi, from 'anullsrc':
    
  Duration: N/A, start: 0.000000, bitrate: 705 kb/s
    
    Stream #1:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (hevc (native) -> h264 (libx264))
    
  Stream #1:0 -> #0:1 (pcm_u8 (native) -> mp3 (libmp3lame))
    
Press [q] to stop, [?] for help
    
[hevc @ 0x5fbfd80] Could not find ref with POC 4
    
[libx264 @ 0x5fb9d80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
[libx264 @ 0x5fb9d80] profile Constrained Baseline, level 4.0, 4:2:0, 8-bit
    
[libx264 @ 0x5fb9d80] 264 - core 157 r2969 d4099dd - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=60 keyint_min=31 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=abr mbtree=0 bitrate=2250 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=6000 vbv_bufsize=6000 nal_hrd=none filler=0 ip_ratio=1.40 aq=0
    
Output #0, flv, to 'rtmp://b.rtmp.youtube.com/live2/xxxx-xxxx-xxxx-xxxx':
    
  Metadata:
    
    title           : streamed by the Rtsp Server
    
    comment         : RTSP_STREAM_0
    
    encoder         : Lavf58.32.104
    
    Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuvj420p(pc, progressive), 1920x1080, q=-1--1, 2250 kb/s, 30 fps, 1k tbn, 30 tbc
    
    Metadata:
    
      encoder         : Lavc58.56.101 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 6000000/0/2250000 buffer size: 6000000 vbv_delay: N/A
    
    Stream #0:1: Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 44100 Hz, stereo, s16p, 128 kb/s
    
    Metadata:
    
      encoder         : Lavc58.56.101 libmp3lame
    
frame= 522 fps=31 q=19.0 size=  8802Kb time=00:00:36:53 bitrate 2481.0kbits/s dup= drop=2 speed=1.01x

    Basically all looks good to me - still, in YouTube Studio only the waiting icon with the "Connect streaming software to start preview" message is visible, not video feed.

    Any ideas ?

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