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• FFMPEG, DrawText Issue in Live Stream

  7 décembre 2022, par Kenneth

  I am using the following command to create an H264 stream with text data from a text file. Example data is fake. I am sending this to an RTSP server that then allows clients to connect. I am connecting from VLC to view the stream.

  


  See update, this only happens for the live stream. If I output to file, it looks correct.

  


  OS : Windows 10

  


  ffmpeg -f lavfi -re -i color=size=1280x720:rate=1:color=black ^
  -vf drawtext="fontsize=16:fontfile=C\\:/Windows/fonts/consola.ttf:fontcolor=white:textfile='livetext.txt':x=50:y=50: reload=1" ^
  -c:v libx264 -preset ultrafast -tune zerolatency -x264-params keyint=10:min-keyint=10 ^
  -f rtsp rtsp://127.0.0.1:60000/sorting


  


  The issue I am having is that the text shown in the video seems to be limited to 10 rows. On a fresh restart, I get even less. I don't see anything mentioned in the documentation about a limitation on length.

  


  I have tried different -preset and -tune options. Nothing improves this issue.

  


  Are there settings I should adjust to help this ?

  


  

  


  Console Output :

  


  ..\ffmpeg\ffmpeg -f lavfi -re -i color=size=1280x720:rate=5:color=black -vf drawtext="fontsize=20:fontfile=C\\:/Windows/fonts/consola.ttf:fontcolor=white:textfile='livetext.txt':x=50:y=50: reload=5"  -c:v libx264 -preset ultrafast -tune zerolatency -x264-params keyint=10:min-keyint=10  -f rtsp rtsp://127.0.0.1:60000/sorting
ffmpeg version 2022-12-04-git-6c814093d8-essentials_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 12.1.0 (Rev2, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
  libavutil      57. 43.100 / 57. 43.100
  libavcodec     59. 54.100 / 59. 54.100
  libavformat    59. 34.102 / 59. 34.102
  libavdevice    59.  8.101 / 59.  8.101
  libavfilter     8. 51.100 /  8. 51.100
  libswscale      6.  8.112 /  6.  8.112
  libswresample   4.  9.100 /  4.  9.100
  libpostproc    56.  7.100 / 56.  7.100
Input #0, lavfi, from 'color=size=1280x720:rate=5:color=black':
  Duration: N/A, start: 0.000000, bitrate: N/A
  Stream #0:0: Video: wrapped_avframe, yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 5 fps, 5 tbr, 5 tbn
Stream mapping:
  Stream #0:0 -> #0:0 (wrapped_avframe (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 000002402dcca140] using SAR=1/1
[libx264 @ 000002402dcca140] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000002402dcca140] profile Constrained Baseline, level 3.1, 4:2:0, 8-bit
[libx264 @ 000002402dcca140] 264 - core 164 r3101 b093bbe - H.264/MPEG-4 AVC codec - Copyleft 2003-2022 - 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=11 lookahead_threads=11 sliced_threads=1 slices=11 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=10 keyint_min=6 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, rtsp, to 'rtsp://127.0.0.1:60000/sorting':
  Metadata:
    encoder         : Lavf59.34.102
  Stream #0:0: Video: h264, yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 5 fps, 90k tbn
    Metadata:
      encoder         : Lavc59.54.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame=  485 fps=5.0 q=11.0 size=N/A time=00:01:36.80 bitrate=N/A speed=   1x     0x


  


  Update 1 :

  


  If I output to a file, the text is shown correctly (shown below). If I take out the -re argument for the output to match input rate, I get 150fps, so processing power does not seem to be the issue.

  


  

  


• ffmpeg blured bars on vertical movie - Error while opening encoder

  14 mars 2021, par hexedecimal

  I'm trying to use ffmpeg to prepare a mp4 file which is vertical recorded for upload to youtube.
(on a synology DS220+)
In the output file I want to have no black bars on the side but blured sodebars of the movie itself.
This I'm trying to do whit this code (in the end I want to automate this process, but maybe there is a better way to do this) :

  


  ffmpeg -i input.mp4 -lavfi "[0:v]scale=1920*2:1080*2,boxblur=luma_radius=min(h\,w)/20:luma_power=1:chroma_radius=min(cw\,ch)/20:chroma_power=1[bg];[0:v]scale=-1:1080[ov];[bg][ov]overlay=(W-w)/2:(H-h)/2,crop=w=1920:h=1080" output.mp4 


  


  unfortunaly i get a error message :

  


  Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height


  


  In mine search on the internet I have tried multiple ways to get this done but whit all the same error result.
This was making me think that the ffmpeg install is faulty or I was trying wrong code.

  


  Could somebody help me whit this "project"

  


  full responce below :

  


  username@ip:/volume1/location$ ffmpeg -i input.mp4 -lavfi "[0:v]scale=1920*2:1080*2,boxblur=luma_radius=min(h\,w)/20:luma_power=1:chroma_radius=min(cw\,ch)/20:chroma_power=1[bg];[0:v]scale=-1:1080[ov];[bg][ov]overlay=(W-w)/2:(H-h)/2,crop=w=1920:h=1080" output.mp4
ffmpeg version 2.7.7 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.9.3 (crosstool-NG 1.20.0) 20150311 (prerelease)
  configuration: --prefix=/usr --incdir='${prefix}/include/ffmpeg' --arch=i686 --target-os=linux --cross-prefix=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu- --enable-cross-compile --enable-optimizations --enable-pic --enable-gpl --enable-shared --disable-static --enable-version3 --enable-nonfree --enable-libfaac --enable-encoders --enable-pthreads --disable-bzlib --disable-protocol=rtp --disable-muxer=image2 --disable-muxer=image2pipe --disable-swscale-alpha --disable-ffserver --disable-ffplay --disable-doc --disable-devices --disable-bzlib --disable-altivec --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --disable-vaapi --disable-decoder=amrnb --disable-decoder=ac3 --disable-decoder=ac3_fixed --disable-encoder=zmbv --disable-encoder=dca --disable-encoder=ac3 --disable-encoder=ac3_fixed --disable-encoder=eac3 --disable-decoder=dca --disable-decoder=eac3 --disable-decoder=truehd --disable-decoder=hevc --disable-muxer=hevc --disable-demuxer=hevc --disable-parser=hevc --cc=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-ccache-gcc --enable-yasm --enable-libx264 --enable-encoder=libx264
  libavutil      54. 27.100 / 54. 27.100
  libavcodec     56. 41.100 / 56. 41.100
  libavformat    56. 36.100 / 56. 36.100
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 16.101 /  5. 16.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.100 /  1.  2.100
  libpostproc    53.  3.100 / 53.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf56.36.100
  Duration: 00:00:36.12, start: 0.000000, bitrate: 2529 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt709/bt709), 406x720 [SAR 405:406 DAR 9:16], 2394 kb/s, 30 fps, 30 tbr, 12k tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
File 'output.mp4' already exists. Overwrite ? [y/N] y
[libx264 @ 0x1cdc4a0] using SAR=81/256
[libx264 @ 0x1cdc4a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0x1cdc4a0] profile High, level 4.0
[libx264 @ 0x1cdc4a0] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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=3 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         : Lavf56.36.100
    Stream #0:0: Video: h264 (libx264), yuv420p, 1920x1080 [SAR 81:256 DAR 9:16], q=-1--1, 30 fps, 30 tbn, 30 tbc (default)
    Metadata:
      encoder         : Lavc56.41.100 libx264
    Stream #0:1(und): Audio: aac, 0 channels, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc56.41.100 libfaac
Stream mapping:
  Stream #0:0 (h264) -> scale (graph 0)
  Stream #0:0 (h264) -> scale (graph 0)
  crop (graph 0) -> Stream #0:0 (libx264)
  Stream #0:1 -> #0:1 (aac (native) -> aac (libfaac))
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height


  


• Green overlay with multiply blend mode using FFMPEG

  25 mars 2014, par Barto

  I'm currently working on a project which needs video editing.
  Here for I'm using ffmpeg, which is working pretty well, except for 1 filter.
  Every video should get an overlay with the Photoshop multiply blend mode.
  I'm using the ffmpeg blend mode, but unfortunately the video gets a green overlay as you can see in the screenshots.

  Original Image
  

  Edited with ffmpeg

  What I'm trying to achieve
  

  Does this has something to do with the mode I'm working in ?
  Below is my current code
  

  #!/bin/bash
  
  vagrant ssh -c "./ffmpeg \
  
  -i /vagrant/public/uploads/video/bw_RzWecVH02p.avi -i /vagrant/public/img/red_ellipse.png \
  
  -filter_complex "blend=all_mode='multiply'" \
  
  /vagrant/public/uploads/video/overlay_RzWecVH02p.mp4"

  Here is my ffmpeg output
  

  $ overlay_edit.sh
  
  ffmpeg version N-61445-gdded5ed Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Mar 14 2014 05:12:40 with gcc 4.6 (Debian 4.6.3-1)
  
    configuration: --prefix=/root/ffmpeg-static/32bit --arch=x86_32 --extra-cflags
  
  ='-m32 -I/root/ffmpeg-static/32bit/include -static' --extra-ldflags='-m32 -L/roo
  
  t/ffmpeg-static/32bit/lib -static' --extra-libs='-lxml2 -lexpat -lfreetype' --en
  
  able-static --disable-shared --disable-ffserver --disable-doc --enable-bzlib --e
  
  nable-zlib --enable-postproc --enable-runtime-cpudetect --enable-libx264 --enabl
  
  e-gpl --enable-libtheora --enable-libvorbis --enable-libmp3lame --enable-gray --
  
  enable-libass --enable-libfreetype --enable-libopenjpeg --enable-libspeex --enab
  
  le-libvo-aacenc --enable-libvo-amrwbenc --enable-version3 --enable-libvpx
  
    libavutil      52. 66.101 / 52. 66.101
  
    libavcodec     55. 52.102 / 55. 52.102
  
    libavformat    55. 34.101 / 55. 34.101
  
    libavdevice    55. 11.100 / 55. 11.100
  
    libavfilter     4.  3.100 /  4.  3.100
  
    libswscale      2.  5.101 /  2.  5.101
  
    libswresample   0. 18.100 /  0. 18.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, avi, from '/vagrant/public/uploads/video/bw_RzWecVH02p.avi':
  
    Metadata:
  
      comment         : Converted by www.scriptcam.com
  
      encoder         : Lavf55.34.101
  
    Duration: 00:00:06.10, start: 0.000000, bitrate: 315 kb/s
  
      Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p, 320
  
  x240 [SAR 1:1 DAR 4:3], 268 kb/s, 30 tbr, 30 tbn, 30 tbc
  
      Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 16000 Hz, mono, s16p, 24 kb/s
  
  
  
  Input #1, image2, from '/vagrant/public/img/red_ellipse.png':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  
      Stream #1:0: Video: png, rgb24, 320x240 [SAR 11811:11811 DAR 4:3], 25 tbr, 2
  
  5 tbn, 25 tbc
  
  [libx264 @ 0xa9c70c0] using SAR=1/1
  
  [libx264 @ 0xa9c70c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle Ca
  
  che64
  
  [libx264 @ 0xa9c70c0] profile High, level 1.3
  
  [libx264 @ 0xa9c70c0] 264 - core 129 r2230 1cffe9f - H.264/MPEG-4 AVC codec - Co
  
  pyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 de
  
  block=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 chr
  
  oma_qp_offset=-2 threads=1 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 scene
  
  cut=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 '/vagrant/public/uploads/video/overlay_RzWecVH02p.mp4':
  
    Metadata:
  
      comment         : Converted by www.scriptcam.com
  
      encoder         : Lavf55.34.101
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 320x24
  
  0 [SAR 1:1 DAR 4:3], q=-1--1, 15360 tbn, 30 tbc (default)
  
      Stream #0:1: Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 16000 Hz, m
  
  ono, s16, 128 kb/s
  
  Stream mapping:
  
    Stream #0:0 (mpeg4) -> blend:top (graph 0)
  
    Stream #1:0 (png) -> blend:bottom (graph 0)
  
    blend (graph 0) -> Stream #0:0 (libx264)
  
    Stream #0:1 -> #0:1 (mp3 -> libvo_aacenc)
  
  Press [q] to stop, [?] for help
  
  frame=   91 fps=0.0 q=29.0 size=      42kB time=00:00:02.90 bitrate= 117.7kbits/
  
  frame=  140 fps=135 q=29.0 size=     105kB time=00:00:04.57 bitrate= 187.3kbits/
  
  frame=  182 fps=106 q=29.0 Lsize=     178kB time=00:00:06.04 bitrate= 241.9kbits
  
  /s dup=52 drop=0
  
  video:158kB audio:16kB subtitle:0 data:0 global headers:0kB muxing overhead 2.25
  
  8588%
  
  [libx264 @ 0xa9c70c0] frame I:1     Avg QP:21.21  size:  9865
  
  [libx264 @ 0xa9c70c0] frame P:128   Avg QP:25.34  size:  1149
  
  [libx264 @ 0xa9c70c0] frame B:53    Avg QP:28.50  size:    88
  
  [libx264 @ 0xa9c70c0] consecutive B-frames: 59.3%  3.3%  6.6% 30.8%
  
  [libx264 @ 0xa9c70c0] mb I  I16..4:  1.3% 69.3% 29.3%
  
  [libx264 @ 0xa9c70c0] mb P  I16..4:  1.0%  5.8%  0.3%  P16..4: 35.1%  9.9%  5.6%
  
    0.0%  0.0%    skip:42.4%
  
  [libx264 @ 0xa9c70c0] mb B  I16..4:  0.1%  0.4%  0.0%  B16..8: 11.8%  0.5%  0.1%
  
    direct: 0.1%  skip:86.9%  L0:48.6% L1:47.7% BI: 3.7%
  
  [libx264 @ 0xa9c70c0] 8x8 transform intra:80.6% inter:80.1%
  
  [libx264 @ 0xa9c70c0] coded y,uvDC,uvAC intra: 73.1% 14.6% 5.3% inter: 13.2% 2.4
  
  % 0.4%
  
  [libx264 @ 0xa9c70c0] i16 v,h,dc,p: 14% 49% 28%  9%
  
  [libx264 @ 0xa9c70c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 28% 32%  4%  4%  4%  4%
  
    4%  6%
  
  [libx264 @ 0xa9c70c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 30% 14%  5%  6%  8%  5%
  
    5%  6%
  
  [libx264 @ 0xa9c70c0] i8c dc,h,v,p: 76% 13% 11%  1%
  
  [libx264 @ 0xa9c70c0] Weighted P-Frames: Y:0.8% UV:0.0%
  
  [libx264 @ 0xa9c70c0] ref P L0: 72.7% 16.4%  8.1%  2.8%  0.0%
  
  [libx264 @ 0xa9c70c0] ref B L0: 84.7% 13.1%  2.1%
  
  [libx264 @ 0xa9c70c0] ref B L1: 95.2%  4.8%
  
  [libx264 @ 0xa9c70c0] kb/s:213.09
  
  [libvo_aacenc @ 0xa9c82c0] 1 frames left in the queue on closing
  
  Connection to 127.0.0.1 closed.