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  • FFMPEG concat filter has unconnected audio output

    7 juillet 2021, par volx757

    I am trying to concat an arbitrary video file with a video file of 5 seconds of black. Here is the command I'm using :

    


    ffmpeg -i tmp/converted_one_1234.mp4 -i public/empty.mp4 -vsync 2 -filter_complex "[0:v]scale=1024:576:force_original_aspect_ratio=decrease,pad=1024:576:(ow-iw)/2:(oh-ih)/2,setsar=1[v0]; [1:v]scale=1024:576:force_original_aspect_ratio=decrease,pad=1024:576:(ow-iw)/2:(oh-ih)/2,setsar=1[v1]; [v0][0:a][v1][1:a]concat=n=2:v=1:a=1[v][a]" -map [v] -map [a] output.mp4


    


    And the error :

    


    Filter concat:out:a0 has an unconnected output


    


    So I understand the issue is that there is an audio stream that is not getting mapped to an output. The arbitrary video has audio in it, the black video technically has no sound, but it has an audio stream (verified with ffprobe).

    


    I think I'm just missing how the syntax works here. I've tried removing the audio input from this section :

    


    [v0][0:a][v1]concat=n=2:v=1:a=1[v][a]


    


    but it doesn't work. How do I avoid this error ?

    


    edit with complete log of ffmpeg events (i should note that before this failing operation, there is one in which the arbitrary video gets converted to an mp4. The concat fails regardless of whether the first conversion is included) :

    


        ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.5 (clang-1205.0.22.9)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.4_2 --enable-shared --enable-pthreads --enable-version3 --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-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-avresample --enable-videotoolbox
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'http://s3.amazonaws.com/bucket/27173/custom_video/final/IMG_2753.mp4?1625616358':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.76.100
  Duration: 00:00:15.93, start: 0.000000, bitrate: 802 kb/s
  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 320x568, 723 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : Core Media Video
      vendor_id       : [0][0][0][0]
  Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 70 kb/s (default)
    Metadata:
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
File 'tmp/converted_one_27173.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> mp2 (native))
Press [q] to stop, [?] for help
[libx264 @ 0x7fe770820400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7fe770820400] profile High, level 3.0, 4:2:0, 8-bit
[libx264 @ 0x7fe770820400] 264 - core 163 r3060 5db6aa6 - H.264/MPEG-4 AVC codec - Copyleft 2003-2021 - 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, mp4, to 'tmp/converted_one_27173.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.76.100
  Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 320x568, q=2-31, 30 fps, 15360 tbn (default)
    Metadata:
      handler_name    : Core Media Video
      vendor_id       : [0][0][0][0]
      encoder         : Lavc58.134.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1(und): Audio: mp2 (mp4a / 0x6134706D), 44100 Hz, mono, s16, 384 kb/s (default)
    Metadata:
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
      encoder         : Lavc58.134.100 mp2
frame=  478 fps=353 q=-1.0 Lsize=    2033kB time=00:00:15.89 bitrate=1047.8kbits/s speed=11.7x    
video:1271kB audio:747kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.769286%
[libx264 @ 0x7fe770820400] frame I:11    Avg QP:23.67  size:  9018
[libx264 @ 0x7fe770820400] frame P:200   Avg QP:25.18  size:  4565
[libx264 @ 0x7fe770820400] frame B:267   Avg QP:30.02  size:  1081
[libx264 @ 0x7fe770820400] consecutive B-frames: 20.5% 12.1%  8.8% 58.6%
[libx264 @ 0x7fe770820400] mb I  I16..4:  9.3% 78.4% 12.3%
[libx264 @ 0x7fe770820400] mb P  I16..4: 10.3% 32.2%  1.0%  P16..4: 34.0% 12.3%  5.0%  0.0%  0.0%    skip: 5.2%
[libx264 @ 0x7fe770820400] mb B  I16..4:  1.0%  4.2%  0.1%  B16..8: 50.8%  4.2%  0.3%  direct: 1.7%  skip:37.6%  L0:52.8% L1:42.8% BI: 4.4%
[libx264 @ 0x7fe770820400] 8x8 transform intra:75.0% inter:70.6%
[libx264 @ 0x7fe770820400] coded y,uvDC,uvAC intra: 47.7% 64.1% 8.5% inter: 17.0% 19.6% 2.4%
[libx264 @ 0x7fe770820400] i16 v,h,dc,p: 17% 21%  8% 53%
[libx264 @ 0x7fe770820400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 23% 15%  5%  7%  7%  7%  5%  7%
[libx264 @ 0x7fe770820400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 24% 14%  5%  9%  7%  9%  5%  6%
[libx264 @ 0x7fe770820400] i8c dc,h,v,p: 47% 25% 20%  8%
[libx264 @ 0x7fe770820400] Weighted P-Frames: Y:11.5% UV:5.5%
[libx264 @ 0x7fe770820400] ref P L0: 73.5% 12.0% 11.9%  2.0%  0.5%
[libx264 @ 0x7fe770820400] ref B L0: 96.0%  3.8%  0.2%
[libx264 @ 0x7fe770820400] ref B L1: 98.1%  1.9%
[libx264 @ 0x7fe770820400] kb/s:653.11
ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.5 (clang-1205.0.22.9)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.4_2 --enable-shared --enable-pthreads --enable-version3 --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-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-avresample --enable-videotoolbox
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Trailing option(s) found in the command: may be ignored.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'tmp/converted_one_27173.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.76.100
  Duration: 00:00:15.93, start: 0.000000, bitrate: 1045 kb/s
  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 320x568, 653 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : Core Media Video
      vendor_id       : [0][0][0][0]
  Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 384 kb/s (default)
    Metadata:
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'public/empty.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.76.100
  Duration: 00:00:05.01, start: 0.000000, bitrate: 17 kb/s
  Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1024x576 [SAR 1:1 DAR 16:9], 7 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
  Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 2 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
Filter concat:out:a0 has an unconnected output


    


  • Anomalie #4830 : extraire_date extravagant

    6 juillet 2021
    1. <span class="CodeRay">Une date 2021 12 32
    2.     2021-12-03
    3. </span>

    Télécharger

    Ça retourne une date "03" puisque 32 n’est pas un jour valide, mais 3 peut l’être.

  • FFmpeg h264_v4l2m2m to rtmp

    6 juillet 2021, par KnightRex

    On an up to date Raspberry Pi 4 B+ 4GB with the Raspberry OS 32bit I'm attempting to stream to an rtmp service, like Youtube or Twitch with FFmpeg using the hardware encoder h264_v4l2m2m but it fails.

    &#xA;

    Issue

    &#xA;

    When streaming the streaming service it ingests the input, bitrate and goes live but no output is shown. When connecting to Twitch the stream inspector correctly detects video resolution but fails to detect the codec or fps.

    &#xA;

    When I replace the stream output to for example a file, test.flv, it records a viewable video with the correct codec (h264/aac) codecs in vlc and ffplay.

    &#xA;

    When I replace the h264_v4l2m2m encoder with h264_omx it streams the video correctly.

    &#xA;

    Steps

    &#xA;

      &#xA;
    • Installed a clean version of the latest Raspi OS 32bit

      &#xA;

    • &#xA;

    • Recompiled FFmpeg to 4.3.2 (to the solve green screen)

      &#xA;

    • &#xA;

    • Record video, creates viewable video :

      &#xA;

      ffmpeg \&#xA;-f v4l2 -input_format mjpeg -video_size 1280x720 -framerate 30 -i /dev/video0 \&#xA;-c:v h264_v4l2m2m -g 60 -pix_fmt yuv420p -b:v 3000k -minrate 3000k -maxrate 3000k -r 30 -an \&#xA;-t 15 test.flv&#xA;

      &#xA;

    • &#xA;

    • Start stream, unable to view :

      &#xA;

      ffmpeg \&#xA;-f v4l2 -input_format mjpeg -video_size 1280x720 -framerate 30 -i /dev/video0 \&#xA;-c:v h264_v4l2m2m -g 60 -pix_fmt yuv420p -b:v 3000k -minrate 3000k -maxrate 3000k -r 30 -an \&#xA;-f flv "<destination uri="uri">"&#xA;</destination>

      &#xA;

    • &#xA;

    • Start stream, unable to view (Extended based on comments below) :

      &#xA;

      ffmpeg \&#xA; -re -f lavfi -i anullsrc \&#xA; -f v4l2 -input_format mjpeg -video_size 1280x720 -framerate 30 -i /dev/video0 \&#xA; -c:v h264_v4l2m2m -g 60 -pix_fmt yuv420p -b:v 3000k -minrate 3000k -maxrate 3000k -r 30 \&#xA; -c:a aac \&#xA; -f flv "<destination uri="uri">"&#xA;</destination>

      &#xA;

    • &#xA;

    • Start stream, with omx works :

      &#xA;

      ffmpeg \&#xA;-f v4l2 -input_format mjpeg -video_size 1280x720 -framerate 30 -i /dev/video0 \&#xA;-c:v h264_omx -preset ultrafast -pix_fmt yuv420p -g 60 -b:v 3000k -minrate 3000k -maxrate 3000k -r 30 -an \&#xA;-f flv "<destination uri="uri">"&#xA;</destination>

      &#xA;

    • &#xA;

    &#xA;

    Output

    &#xA;

    With h264_v4l2m2m (invalid output - loglevel verbose) :

    &#xA;

    $ ffmpeg -re -f lavfi -i anullsrc  -f v4l2 -input_format mjpeg -video_size 1280x720 -framerate 30 -i /dev/video0  -c:v h264_v4l2m2m -g 60 -pix_fmt yuv420p -b:v 3000k -minrate 3000k -maxrate 3000k -r 30 -c:a aac -f flv <destination url="url">&#xA;ffmpeg version n4.3.2 Copyright (c) 2000-2021 the FFmpeg developers&#xA;  built with gcc 8 (Raspbian 8.3.0-6&#x2B;rpi1)&#xA;  configuration: --prefix=/home/pi/ffmpeg_build --bindir=/home/pi/bin --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib --extra-libs=&#x27;-lpthread -lm -latomic&#x27; --enable-omx --enable-encoder=h264_omx&#xA;  libavutil      56. 51.100 / 56. 51.100&#xA;  libavcodec     58. 91.100 / 58. 91.100&#xA;  libavformat    58. 45.100 / 58. 45.100&#xA;  libavdevice    58. 10.100 / 58. 10.100&#xA;  libavfilter     7. 85.100 /  7. 85.100&#xA;  libswscale      5.  7.100 /  5.  7.100&#xA;  libswresample   3.  7.100 /  3.  7.100&#xA;[Parsed_anullsrc_0 @ 0x7215c0] sample_rate:44100 channel_layout:&#x27;stereo&#x27; nb_samples:1024&#xA;Input #0, lavfi, from &#x27;anullsrc&#x27;:&#xA;  Duration: N/A, start: 0.000000, bitrate: 705 kb/s&#xA;    Stream #0:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s&#xA;[video4linux2,v4l2 @ 0x725350] fd:3 capabilities:84a00001&#xA;[mjpeg @ 0x1e10210] EOI missing, emulating&#xA;Input #1, video4linux2,v4l2, from &#x27;/dev/video0&#x27;:&#xA;  Duration: N/A, start: 42396.344658, bitrate: N/A&#xA;    Stream #1:0: Video: mjpeg (Baseline), yuvj422p(pc, bt470bg/unknown/unknown), 1280x720, 30 fps, 30 tbr, 1000k tbn, 1000k tbc&#xA;[tcp @ 0x72cac0] Starting connection attempt to <destination ip="ip"> port 1935&#xA;[tcp @ 0x72cac0] Successfully connected to <destination ip="ip"> port 1935&#xA;Stream mapping:&#xA;  Stream #1:0 -> #0:0 (mjpeg (native) -> h264 (h264_v4l2m2m))&#xA;  Stream #0:0 -> #0:1 (pcm_u8 (native) -> aac (native))&#xA;Press [q] to stop, [?] for help&#xA;[graph 0 input from stream 1:0 @ 0x73de00] w:1280 h:720 pixfmt:yuvj422p tb:1/1000000 fr:30/1 sar:0/1 sws_param:flags=2&#xA;[auto_scaler_0 @ 0x745400] w:iw h:ih flags:&#x27;bicubic&#x27; interl:0&#xA;[format @ 0x73e750] auto-inserting filter &#x27;auto_scaler_0&#x27; between the filter &#x27;Parsed_null_0&#x27; and the filter &#x27;format&#x27;&#xA;[swscaler @ 0x1e300b0] deprecated pixel format used, make sure you did set range correctly&#xA;[auto_scaler_0 @ 0x745400] w:1280 h:720 fmt:yuvj422p sar:0/1 -> w:1280 h:720 fmt:yuv420p sar:0/1 flags:0x4&#xA;[h264_v4l2m2m @ 0x72a500] driver &#x27;bcm2835-codec&#x27; on card &#x27;bcm2835-codec-isp&#x27;&#xA;[h264_v4l2m2m @ 0x72a500] driver &#x27;uvcvideo&#x27; on card &#x27;USB Video: USB Video&#x27;&#xA;    Last message repeated 1 times&#xA;[h264_v4l2m2m @ 0x72a500] driver &#x27;bcm2835-codec&#x27; on card &#x27;bcm2835-codec-encode&#x27;&#xA;[h264_v4l2m2m @ 0x72a500] Using device /dev/video11&#xA;[h264_v4l2m2m @ 0x72a500] driver &#x27;bcm2835-codec&#x27; on card &#x27;bcm2835-codec-encode&#x27;&#xA;[h264_v4l2m2m @ 0x72a500] Failed to set number of B-frames&#xA;    Last message repeated 1 times&#xA;[h264_v4l2m2m @ 0x72a500] Failed to set gop size&#xA;[h264_v4l2m2m @ 0x72a500] h264 profile not found&#xA;[h264_v4l2m2m @ 0x72a500] Encoder adjusted: qmin (0), qmax (51)&#xA;[h264_v4l2m2m @ 0x72a500] Failed to set minimum video quantizer scale&#xA;[h264_v4l2m2m @ 0x72a500] Failed to set maximum video quantizer scale&#xA;[graph_1_in_0_0 @ 0x786f90] tb:1/44100 samplefmt:u8 samplerate:44100 chlayout:0x3&#xA;[format_out_0_1 @ 0x7871d0] auto-inserting filter &#x27;auto_resampler_0&#x27; between the filter &#x27;Parsed_anull_0&#x27; and the filter &#x27;format_out_0_1&#x27;&#xA;[auto_resampler_0 @ 0x7887f0] ch:2 chl:stereo fmt:u8 r:44100Hz -> ch:2 chl:stereo fmt:fltp r:44100Hz&#xA;Output #0, flv, to &#x27;<destination url="url">&#x27;:&#xA;  Metadata:&#xA;    encoder         : Lavf58.45.100&#xA;    Stream #0:0: Video: h264 (h264_v4l2m2m) ([7][0][0][0] / 0x0007), yuv420p(progressive), 1280x720, q=-1--1, 3000 kb/s, 30 fps, 1k tbn, 30 tbc&#xA;    Metadata:&#xA;      encoder         : Lavc58.91.100 h264_v4l2m2m&#xA;    Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s&#xA;    Metadata:&#xA;      encoder         : Lavc58.91.100 aac&#xA;[video4linux2,v4l2 @ 0x1e0f410] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)&#xA;frame= 1966 fps= 24 q=-0.0 size=   13016kB time=00:01:23.60 bitrate=1275.4kbits/s speed=   1x&#xA;</destination></destination></destination></destination>

    &#xA;

      &#xA;
    • deprecated pixel format yuvy422p : video0 has mjpeg and raw output in pixel format yuvy422p.
    • &#xA;

    &#xA;

    With h264 omx (works)

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      libavutil      56. 22.100 / 56. 22.100&#xA;  libavcodec     58. 35.100 / 58. 35.100&#xA;  libavformat    58. 20.100 / 58. 20.100&#xA;  libavdevice    58.  5.100 / 58.  5.100&#xA;  libavfilter     7. 40.101 /  7. 40.101&#xA;  libavresample   4.  0.  0 /  4.  0.  0&#xA;  libswscale      5.  3.100 /  5.  3.100&#xA;  libswresample   3.  3.100 /  3.  3.100&#xA;  libpostproc    55.  3.100 / 55.  3.100&#xA;Input #0, lavfi, from &#x27;anullsrc&#x27;:&#xA;  Duration: N/A, start: 0.000000, bitrate: 705 kb/s&#xA;    Stream #0:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s&#xA;[mjpeg @ 0x7c7320] EOI missing, emulating&#xA;Input #0, video4linux2,v4l2, from &#x27;/dev/video0&#x27;:&#xA;  Duration: N/A, start: 71.378330, bitrate: N/A&#xA;    Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 1280x720, 30 fps, 30 tbr, 1000k tbn, 1000k tbc&#xA;Codec AVOption preset (Configuration preset) specified for output file #0 (<destination url="url">) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.&#xA;Stream mapping:&#xA;  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (h264_omx))&#xA;  Stream #0:0 -> #0:1 (pcm_u8 (native) -> aac (native))&#xA;Press [q] to stop, [?] for help&#xA;[swscaler @ 0x7e5180] deprecated pixel format used, make sure you did set range correctly&#xA;[h264_omx @ 0x7cb800] Using OMX.broadcom.video_encode&#xA;Output #0, flv, to &#x27;<destination url="url">&#x27;:&#xA;  Metadata:&#xA;    encoder         : Lavf58.20.100&#xA;    Stream #0:0: Video: h264 (h264_omx) ([7][0][0][0] / 0x0007), yuv420p(progressive), 1280x720, q=2-31, 3000 kb/s, 30 fps, 1k tbn, 30 tbc&#xA;    Metadata:&#xA;      encoder         : Lavc58.35.100 h264_omx&#xA;    Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s&#xA;    Metadata:&#xA;      encoder         : Lavc58.35.100 aac&#xA;[flv @ 0x7ca190] Failed to update header with correct duration.rate=1438.3kbits/s speed=   1x&#xA;[flv @ 0x7ca190] Failed to update header with correct filesize.&#xA;frame= 2190 fps= 24 q=-0.0 Lsize=   16424kB time=00:01:33.20 bitrate=1443.6kbits/s speed=   1x&#xA;</destination></destination>

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