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• ffmpeg stream input sdp shows warning keyframe missing

  27 mars 2021, par Doua Beri

  I'm using ffmpeg 4.3.2.
I'm trying to forward a stream to a rtmp server having sdp file as input

  


  Opening the sdp file with VLC everything is working great. The same thing happens when I use ffplay

  


  ffplay -i rtp-forwarder.sdp -protocol_whitelist file,udp,rtp


  


  The problem starts when I start streaming to a rtmp server. The audio is good but the video is just a black screen. I event tried to stream to youtube rtmp server but it didn't work.

  


  I'm new to ffmpeg. Let me know if I'm missing something.

  


  I'm using this command

  


  ffmpeg -protocol_whitelist file,crypto,udp,rtp -re -i rtp-forwarder.sdp -c:v libx264 -b:v 3000k -maxrate 3000k -bufsize 6000k -pix_fmt yuv420p -g 50 -c:a aac -b:a 160k -ac 2 -ar 44100 -f flv rtmp://localhost/live/test


  


  The sdp file content is like this

  


  v=0
o=- 0 0 IN IP4 192.168.1.49
s=Pion WebRTC
c=IN IP4 192.168.1.49
t=0 0
m=audio 4000 RTP/AVP 111
a=rtpmap:111 OPUS/48000/2
m=video 4002 RTP/AVP 96
a=rtpmap:96 VP8/90000


  


  Here is a full log

  


    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
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
[sdp @ 0000015a81ede6c0] Keyframe missing
Input #0, sdp, from 'rtp-forwarder.sdp':
  Metadata:
    title           : Pion WebRTC
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Audio: opus, 48000 Hz, stereo, fltp
    Stream #0:1: Video: vp8, yuv420p(tv, bt470bg/unknown/unknown), 640x480, 90k tbr, 90k tbn, 90k tbc
Stream mapping:
  Stream #0:1 -> #0:0 (vp8 (native) -> h264 (libx264))
  Stream #0:0 -> #0:1 (opus (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0000015a81f9e880] MB rate (108000000) > level limit (16711680) -0.0kbits/s speed=N/A
[libx264 @ 0000015a81f9e880] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000015a81f9e880] profile High, level 6.2, 4:2:0, 8-bit
[libx264 @ 0000015a81f9e880] 264 - core 161 r3048 b86ae3c - 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=50 keyint_min=5 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=cbr mbtree=1 bitrate=3000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=3000 vbv_bufsize=6000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'rtmp://localhost/live/test':
  Metadata:
    title           : Pion WebRTC
    encoder         : Lavf58.45.100
    Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 640x480, q=-1--1, 3000 kb/s, 90k fps, 1k tbn, 90k tbc
    Metadata:
      encoder         : Lavc58.91.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 3000000/0/3000000 buffer size: 6000000 vbv_delay: N/A
    Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 160 kb/s
    Metadata:
      encoder         : Lavc58.91.100 aac
[flv @ 0000015a820dd200] Failed to update header with correct duration..1kbits/s speed=   1x
[flv @ 0000015a820dd200] Failed to update header with correct filesize.
frame=   13 fps=0.1 q=-1.0 Lsize=    4233kB time=00:03:07.12 bitrate= 185.3kbits/s speed=0.999x
video:440kB audio:3658kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.281771%
[libx264 @ 0000015a81f9e880] frame I:1     Avg QP: 1.61  size: 59263
[libx264 @ 0000015a81f9e880] frame P:3     Avg QP: 9.10  size: 44500
[libx264 @ 0000015a81f9e880] frame B:9     Avg QP: 9.80  size: 28605
[libx264 @ 0000015a81f9e880] consecutive B-frames:  7.7%  0.0%  0.0% 92.3%
[libx264 @ 0000015a81f9e880] mb I  I16..4: 36.5% 19.5% 44.0%
[libx264 @ 0000015a81f9e880] mb P  I16..4: 10.7% 50.3% 12.3%  P16..4: 11.6%  9.6%  5.5%  0.0%  0.0%    skip: 0.1%
[libx264 @ 0000015a81f9e880] mb B  I16..4:  2.2% 10.4%  3.6%  B16..8: 45.7% 21.2%  6.1%  direct:10.6%  skip: 0.1%  L0:60.0% L1:25.5% BI:14.5%
[libx264 @ 0000015a81f9e880] final ratefactor: 13.03
[libx264 @ 0000015a81f9e880] 8x8 transform intra:56.7% inter:41.9%
[libx264 @ 0000015a81f9e880] coded y,uvDC,uvAC intra: 90.9% 99.6% 98.9% inter: 66.1% 99.0% 93.2%
[libx264 @ 0000015a81f9e880] i16 v,h,dc,p: 23% 22% 18% 38%
[libx264 @ 0000015a81f9e880] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 26% 23%  4%  2%  3%  3%  4%  4%
[libx264 @ 0000015a81f9e880] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 34% 18%  2%  2%  2%  2%  2%  2%
[libx264 @ 0000015a81f9e880] i8c dc,h,v,p: 55% 29% 11%  5%
[libx264 @ 0000015a81f9e880] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0000015a81f9e880] ref P L0: 59.2%  5.0% 13.4% 22.4%
[libx264 @ 0000015a81f9e880] ref B L0: 87.1%  7.5%  5.4%
[libx264 @ 0000015a81f9e880] ref B L1: 95.1%  4.9%
[libx264 @ 0000015a81f9e880] kb/s:4028.74
[aac @ 0000015a81f9a880] Qavg: 7535.380


  


  I get this warning [sdp @ 0000015a81ede6c0] Keyframe missing
and this one after a stop it

  


  [flv @ 0000015a820dd200] Failed to update header with correct duration..1kbits/s speed=   1x
[flv @ 0000015a820dd200] Failed to update header with correct filesize.


  


• Video watermarking with ffmpeg (output video size too big )

  22 janvier 2020, par kartik bansal

  i am running ffmpeg on video of size around 2 Mb and after watermarking them size of my video file is around 13-17 Mb. AM i doing something wrong. Please Help

  My code is

  ffmpeg -i "C:\flask\mobile_form\Videos\20191231140058_987654567.mp4" -i "C:\flask\mobile_form\resizeLogo.jpg" -filter_complex "[0:v][1:v]overlay=10:10,drawtext=text=Hello:fontsize=24:x=main_w-200:y=main_h-100,drawtext=text=World:fontsize=24:x=main_w-200:y=main_h-60" "C:\flask\mobile_form\waterMark\second.mp4"

  This is my full log, It is not giving any error but i want my output file to be smaller.

  ffmpeg version git-2020-01-15-0dc0837 Copyright (c) 2000-2020 the FFmpeg developers
  
    built with gcc 9.2.1 (GCC) 20200111
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  
    libavutil      56. 38.100 / 56. 38.100
  
    libavcodec     58. 65.103 / 58. 65.103
  
    libavformat    58. 35.102 / 58. 35.102
  
    libavdevice    58.  9.103 / 58.  9.103
  
    libavfilter     7. 71.100 /  7. 71.100
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100

  Continued

    Metadata:
  
      encoder         : Chrome
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #0:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)
  
      Stream #0:1(eng): Video: vp8, yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 1k tbr, 1k tbn, 1k tbc (default)
  
      Metadata:
  
        alpha_mode      : 1
  
  
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: 1727 kb/s
  
      Stream #1:0: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 255x122 [SAR 120:120 DAR 255:122], 25 tbr, 25 tbn, 25 tbc
  
  Fontconfig error: Cannot load default config file
  
  [Parsed_drawtext_1 @ 000001ba5309d4c0] Using "C:/WINDOWS/fonts/mingliub.ttc"
  
  Fontconfig error: Cannot load default config file
  
  [Parsed_drawtext_2 @ 000001ba53051640] Using "C:/WINDOWS/fonts/mingliub.ttc"
  
  Stream mapping:
  
    Stream #0:1 (vp8) -> overlay:main (graph 0)
  
    Stream #1:0 (mjpeg) -> overlay:overlay (graph 0)
  
    drawtext (graph 0) -> Stream #0:0 (libx264)
  
    Stream #0:0 -> #0:1 (opus (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  Fontconfig error: Cannot load default config file
  
  [Parsed_drawtext_1 @ 000001ba53c06280] Using "C:/WINDOWS/fonts/mingliub.ttc"
  
  Fontconfig error: Cannot load default config file
  
  [Parsed_drawtext_2 @ 000001ba53c40d40] Using "C:/WINDOWS/fonts/mingliub.ttc"
  
  [swscaler @ 000001ba53caf380] deprecated pixel format used, make sure you did set range correctly
  
  [libx264 @ 000001ba5304e240] using SAR=1/1
  
  [libx264 @ 000001ba5304e240] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 000001ba5304e240] profile High, level 5.2, 4:2:0, 8-bit
  
  [libx264 @ 000001ba5304e240] 264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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=15 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 'C:\Users\3427521kar\Desktop\New folder (2)\output30.mp4':
  
    Metadata:
  
      encoder         : Lavf58.35.102
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 1k fps, 16k tbn, 1k tbc (default)
  
      Metadata:
  
        encoder         : Lavc58.65.103 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 69 kb/s (default)
  
      Metadata:
  
  
  
  [libx264 @ 000001ba5304e240] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 000001ba5304e240] ref P L0: 77.1% 13.5%  8.3%  1.0%  0.0%
  
  [libx264 @ 000001ba5304e240] ref B L0: 75.0% 24.5%  0.5%
  
  [libx264 @ 000001ba5304e240] ref B L1: 94.1%  5.9%
  
  [libx264 @ 000001ba5304e240] kb/s:1380.55
  
  [aac @ 000001ba53067100] Qavg: 129.494

  here is the full log of my code

• FFMpeg Concat Filter - Setting start position for file

  9 avril 2014, par Joyce Babu

  I want to concat two video files using the concat filter. The first file has to be included fully, whereas the second video must be included from the 10th second. Do I need to first create an intermediate file starting from the 10th second, or can I do it in one step ?

  The command I am using is

  /usr/local/bin/ffmpeg -i intro.mp4 -i input.mp4 -filter_complex '[0:v] scale=720:576 [in1]; [1:v] scale=720:576 [in2]; [in1][in2] concat [v]; [0:a][1:a] concat=v=0:a=1 [a]' -map '[v]' -map '[a]' output.mp4

  I tried specifying -ss after -i input.mp4, but it is applied on the final output file.

  iMac:files joyce$ /usr/local/bin/ffmpeg -i intro.mp4 -i input.mp4 -filter_complex '[0:v] scale=720:576 [in1]; [1:v] scale=720:576 [in2]; [in1][in2] concat [v]; [0:a][1:a] concat=v=0:a=1 [a]' -map '[v]' -map '[a]' output.mp4
  
  ffmpeg version 2.1.4 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Mar 22 2014 16:19:43 with Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
  
    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-libtheora --enable-libvorbis --enable-libvpx --enable-libfdk-aac
  
    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 'intro.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.19.104
  
    Duration: 00:00:03.05, start: 0.046440, bitrate: 1304 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1920x1080, 1167 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 132 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.19.104
  
      episode_sort    : 1
  
      season_number   : 1
  
      media_type      : 9
  
      hd_video        : 0
  
    Duration: 00:00:45.43, start: 0.042667, bitrate: 906 kb/s
  
      Stream #1:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 720x576 [SAR 1:1 DAR 5:4], 774 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #1:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  File 'output.mp4' already exists. Overwrite ? [y/N] y
  
  [libx264 @ 0x7fa9a8828e00] using SAR=1/1
  
  [libx264 @ 0x7fa9a8828e00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
  
  [libx264 @ 0x7fa9a8828e00] profile High, level 3.1
  
  [libx264 @ 0x7fa9a8828e00] 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=6 lookahead_threads=1 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 'output.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.19.104
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 720x576 [SAR 1:1 DAR 5:4], q=-1--1, 30k tbn, 29.97 tbc (default)
  
      Stream #0:1: Audio: aac (libfaac) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s (default)
  
  Stream mapping:
  
    Stream #0:0 (h264) -> scale
  
    Stream #0:1 (aac) -> concat:in0:a0
  
    Stream #1:0 (h264) -> scale
  
    Stream #1:1 (aac) -> concat:in1:a0
  
    concat -> Stream #0:0 (libx264)
  
    concat -> Stream #0:1 (libfaac)
  
  Press [q] to stop, [?] for help
  
  frame= 1453 fps= 42 q=-1.0 Lsize=    4536kB time=00:00:48.50 bitrate= 766.1kbits/s dup=227 drop=0    
  
  video:3796kB audio:691kB subtitle:0 global headers:0kB muxing overhead 1.102067%
  
  [libx264 @ 0x7fa9a8828e00] frame I:31    Avg QP:17.02  size: 14953
  
  [libx264 @ 0x7fa9a8828e00] frame P:764   Avg QP:24.14  size:  3677
  
  [libx264 @ 0x7fa9a8828e00] frame B:658   Avg QP:28.17  size:   933
  
  [libx264 @ 0x7fa9a8828e00] consecutive B-frames: 36.4%  6.2% 10.3% 47.1%
  
  [libx264 @ 0x7fa9a8828e00] mb I  I16..4: 40.4% 32.3% 27.3%
  
  [libx264 @ 0x7fa9a8828e00] mb P  I16..4:  6.6%  4.0%  1.1%  P16..4: 25.2%  5.7%  2.3%  0.0%  0.0%    skip:55.0%
  
  [libx264 @ 0x7fa9a8828e00] mb B  I16..4:  0.8%  0.4%  0.2%  B16..8: 24.5%  1.7%  0.2%  direct: 0.5%  skip:71.6%  L0:50.7% L1:45.5% BI: 3.9%
  
  [libx264 @ 0x7fa9a8828e00] 8x8 transform intra:33.3% inter:59.0%
  
  [libx264 @ 0x7fa9a8828e00] coded y,uvDC,uvAC intra: 26.4% 41.2% 8.0% inter: 5.6% 7.9% 0.2%
  
  [libx264 @ 0x7fa9a8828e00] i16 v,h,dc,p: 46% 29%  8% 17%
  
  [libx264 @ 0x7fa9a8828e00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 19% 28%  3%  3%  4%  3%  4%  3%
  
  [libx264 @ 0x7fa9a8828e00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 34% 22% 13%  4%  6%  7%  5%  5%  3%
  
  [libx264 @ 0x7fa9a8828e00] i8c dc,h,v,p: 57% 19% 20%  4%
  
  [libx264 @ 0x7fa9a8828e00] Weighted P-Frames: Y:1.8% UV:1.2%
  
  [libx264 @ 0x7fa9a8828e00] ref P L0: 73.2%  9.1% 11.7%  5.3%  0.7%
  
  [libx264 @ 0x7fa9a8828e00] ref B L0: 89.3%  8.9%  1.8%
  
  [libx264 @ 0x7fa9a8828e00] ref B L1: 95.3%  4.7%
  
  [libx264 @ 0x7fa9a8828e00] kb/s:641.26