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• FFmpeg using png with tranparency and exclusion blending mode

  27 août 2016, par moorej

  I’m trying to use the exclusion blending mode to blend together a video and a png with transparency. I’ve looked around quite a bit but I can’t find a solution that works for me. Here’s the ffmpeg command :

  ffmpeg -i movie.mkv -i text_white_bg_trans.png -filter_complex\
  
    "[1:v]setsar=sar=1,format=rgba[txt]; [0:v]format=rgba[mo]; [mo][txt]blend=all_mode='exclusion'"  out_exclusion.mkv

  Edit : and the console output :

  ffmpeg version 3.0.2 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
  
    configuration: --prefix=/opt/local --enable-swscale --enable-avfilter --enable-avresample --enable-libmp3lame --enable-libvorbis --enable-libopus --enable-libtheora --enable-libschroedinger --enable-libopenjpeg --enable-libmodplug --enable-libvpx --enable-libsoxr --enable-libspeex --enable-libass --enable-libbluray --enable-lzma --enable-gnutls --enable-fontconfig --enable-libfreetype --enable-libfribidi --disable-indev=jack --disable-outdev=xv --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/clang --enable-vda --enable-videotoolbox --arch=x86_64 --enable-yasm --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid
  
    libavutil      55. 17.103 / 55. 17.103
  
    libavcodec     57. 24.102 / 57. 24.102
  
    libavformat    57. 25.100 / 57. 25.100
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 31.100 /  6. 31.100
  
    libavresample   3.  0.  0 /  3.  0.  0
  
    libswscale      4.  0.100 /  4.  0.100
  
    libswresample   2.  0.101 /  2.  0.101
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, matroska,webm, from 'movie.mkv':
  
    Metadata:
  
      ENCODER         : Lavf57.25.100
  
    Duration: 00:00:11.88, start: 0.000000, bitrate: 5143 kb/s
  
      Stream #0:0: Video: h264 (High), yuv420p, 1640x1232, SAR 1:1 DAR 205:154, 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
  
      Metadata:
  
        ENCODER         : Lavc57.24.102 libx264
  
        DURATION        : 00:00:11.880000000
  
  Input #1, png_pipe, from 'text_white_bg_trans.png':
  
    Duration: N/A, bitrate: N/A
  
      Stream #1:0: Video: png, rgba(pc), 1640x1232, 25 tbr, 25 tbn, 25 tbc
  
  File 'out_exclusion.mkv' already exists. Overwrite ? [y/N] y
  
  No pixel format specified, yuv444p for H.264 encoding chosen.
  
  Use -pix_fmt yuv420p for compatibility with outdated media players.
  
  [libx264 @ 0x7fb10a01e200] using SAR=1/1
  
  [libx264 @ 0x7fb10a01e200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x7fb10a01e200] profile High 4:4:4 Predictive, level 4.0, 4:4:4 8-bit
  
  [libx264 @ 0x7fb10a01e200] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=4 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, matroska, to 'out_exclusion.mkv':
  
    Metadata:
  
      encoder         : Lavf57.25.100
  
      Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv444p, 1640x1232 [SAR 1:1 DAR 205:154], q=-1--1, 25 fps, 1k tbn, 25 tbc (default)
  
      Metadata:
  
        encoder         : Lavc57.24.102 libx264
  
      Side data:
  
        unknown side data type 10 (24 bytes)
  
  Stream mapping:
  
    Stream #0:0 (h264) -> format
  
    Stream #1:0 (png) -> setsar
  
    blend -> Stream #0:0 (libx264)
  
  Press [q] to stop, [?] for help
  
  frame=   24 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=  frame=   47 fps= 40 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=  frame=   61 fps= 36 q=28.0 size=      96kB time=00:00:00.12 bitrate=6567.3kbitsframe=   70 fps= 32 q=28.0 size=     264kB time=00:00:00.48 bitrate=4513.9kbitsframe=   83 fps= 30 q=28.0 size=     498kB time=00:00:01.00 bitrate=4079.5kbitsframe=   95 fps= 29 q=28.0 size=     691kB time=00:00:01.48 bitrate=3827.5kbitsframe=  106 fps= 28 q=28.0 size=     896kB time=00:00:01.92 bitrate=3823.7kbitsframe=  118 fps= 27 q=28.0 size=    1132kB time=00:00:02.40 bitrate=3863.7kbitsframe=  130 fps= 26 q=28.0 size=    1338kB time=00:00:02.88 bitrate=3806.1kbitsframe=  142 fps= 26 q=28.0 size=    1588kB time=00:00:03.36 bitrate=3871.7kbitsframe=  154 fps= 25 q=28.0 size=    1808kB time=00:00:03.84 bitrate=3856.9kbitsframe=  166 fps= 25 q=28.0 size=    2062kB time=00:00:04.32 bitrate=3910.9kbitsframe=  178 fps= 24 q=28.0 size=    2328kB time=00:00:04.80 bitrate=3972.8kbitsframe=  190 fps= 24 q=28.0 size=    2620kB time=00:00:05.28 bitrate=4064.7kbitsframe=  203 fps= 24 q=28.0 size=    2886kB time=00:00:05.80 bitrate=4076.0kbitsframe=  215 fps= 24 q=28.0 size=    3132kB time=00:00:06.28 bitrate=4085.9kbitsframe=  226 fps= 24 q=28.0 size=    3357kB time=00:00:06.72 bitrate=4092.5kbitsframe=  238 fps= 24 q=28.0 size=    3589kB time=00:00:07.20 bitrate=4083.9kbitsframe=  250 fps= 23 q=28.0 size=    3794kB time=00:00:07.68 bitrate=4047.3kbitsframe=  260 fps= 23 q=28.0 size=    3978kB time=00:00:08.08 bitrate=4032.7kbitsframe=  272 fps= 23 q=28.0 size=    4212kB time=00:00:08.56 bitrate=4031.0kbitsframe=  284 fps= 23 q=28.0 size=    4453kB time=00:00:09.04 bitrate=4035.3kbitsframe=  295 fps= 23 q=28.0 size=    4632kB time=00:00:09.48 bitrate=4002.9kbitsframe=  297 fps= 20 q=-1.0 Lsize=    5559kB time=00:00:11.80 bitrate=3859.4kbits/s speed=0.808x    
  
  video:5556kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.053747%
  
  [libx264 @ 0x7fb10a01e200] frame I:2     Avg QP:21.70  size: 56001
  
  [libx264 @ 0x7fb10a01e200] frame P:178   Avg QP:23.12  size: 24833
  
  [libx264 @ 0x7fb10a01e200] frame B:117   Avg QP:25.78  size:  9886
  
  [libx264 @ 0x7fb10a01e200] consecutive B-frames: 29.3% 49.8% 14.1%  6.7%
  
  [libx264 @ 0x7fb10a01e200] mb I  I16..4:  9.5% 75.0% 15.5%
  
  [libx264 @ 0x7fb10a01e200] mb P  I16..4:  4.0% 14.8%  1.0%  P16..4: 43.3% 12.0%  4.5%  0.0%  0.0%    skip:20.4%
  
  [libx264 @ 0x7fb10a01e200] mb B  I16..4:  0.6%  1.9%  0.1%  B16..8: 48.5%  4.2%  0.3%  direct: 0.6%  skip:43.8%  L0:42.5% L1:55.6% BI: 1.9%
  
  [libx264 @ 0x7fb10a01e200] 8x8 transform intra:74.8% inter:85.5%
  
  [libx264 @ 0x7fb10a01e200] coded y,u,v intra: 31.3% 0.0% 0.0% inter: 15.0% 0.0% 0.0%
  
  [libx264 @ 0x7fb10a01e200] i16 v,h,dc,p: 30% 32% 13% 25%
  
  [libx264 @ 0x7fb10a01e200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 22% 32%  3%  4%  3%  6%  3%  3%
  
  [libx264 @ 0x7fb10a01e200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 33% 16%  3%  4%  3%  9%  4%  2%
  
  [libx264 @ 0x7fb10a01e200] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x7fb10a01e200] ref P L0: 72.2% 17.9%  7.5%  2.5%
  
  [libx264 @ 0x7fb10a01e200] ref B L0: 90.9%  8.6%  0.5%
  
  [libx264 @ 0x7fb10a01e200] ref B L1: 98.6%  1.4%
  
  [libx264 @ 0x7fb10a01e200] kb/s:3830.94

  Edit : Here’s a frame from the output.
  
  The output video is B&W rather than the original color (not sure why). The rectangle in the image is located where there is a block of text on a png with a transparent background. The png is the same size as the video.

  I’m expecting something more like this :
  

  @Mulvya suggestion fixed the issue with color but I’m still seeing some problems with transparency being handled. I’m attaching a few different images below that each create different problems. All created in Photoshop CC (therein may lie the problem).

  A transparent background with a separate text layer that is then exported by Save->png, Photoshop appears to merge these two layers but differently than when "merge layers" is chosen before export. The exported image looks like the B&W image I posted above but with color.

  The in the second I merge the layers before exporting. It appears the entire image is treated as white.

  In the third I draw "hello" on a transparent layer with a "soft" brush using different grays then export. Transparent areas are rendered as white, gray or translucent areas opaque or with a strange dithering "effect."

  It seems I’m moving outside the realm of StackOverflow, but I’m not sure where this post would be better suited.
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• Issue with repairing 3GP video using untrunc - Error : bad track : 's263'

  2 juillet 2023, par sifirib

  I am trying to repair a corrupted 3GP video using the untrunc program, but I'm facing an issue due to an error.

  


  The command I ran :

  


  ./untrunc -v ~/Desktop/logic/Video0086.3gp ~/Desktop/logic/Video0035.3gp


  


  I am running Ubuntu 20.04 LTS and using the 'v308-d72ec32' version of the untrunc. The error message I encounter is as follows :

  


  Info: version 'v308-d72ec32' using ffmpeg '4.4.2-0ubuntu0.22.04.1'
Info: reading /home/hsrv/Desktop/logic/Video0086.3gp
Info: parsing healthy moov atom ... 
ftyp_ = 'mp42'
[amrnb @ 0x56075d7656c0] Multiple frames in a packet.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/hsrv/Desktop/logic/Video0086.3gp':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2014-04-26T21:38:29.000000Z
    com.android.version: 12
  Duration: 00:02:22.80, start: 0.000000, bitrate: 154 kb/s
  Stream #0:0(eng): Video: h263 (s263 / 0x33363273), yuv420p, 176x144 [SAR 12:11 DAR 4:3], 140 kb/s, 10.74 fps, 11 tbr, 90k tbn, 29.97 tbc (default)
    Metadata:
      creation_time   : 2023-07-02T15:34:22.000000Z
      handler_name    : VideoHandle
      vendor_id       : [0][0][0][0]
  Stream #0:1(eng): Audio: amr_nb (samr / 0x726D6173), 8000 Hz, mono, flt, 12 kb/s (default)
    Metadata:
      creation_time   : 2023-07-02T15:34:22.000000Z
      handler_name    : SoundHandle
      vendor_id       : [0][0][0][0]
ss: s263 is_stable: 0
ss: using f=7 span
assuming constant duration of 640 for 'samr' (x1785)

Info: unknown track 's263' found -> fallback to dynamic stats
created dummy track 'free'
removed dummy track 'free'
first_failed: 0 of 101
simpleOrder: 0 
order ( 101): (0, 14) (0, 11) (0, 11) (0, 12) (0, 11) (0, 12) (0, 11) (0, 12) (0, 11) (0, 11) (0, 11) (0, 11) (0, 12) (0, 12) (0, 11) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 11) (0, 11) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 11) (0, 11) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 11) (0, 11) (0, 12) (0, 11) (0, 11) (0, 12) (0, 12) (0, 11) (0, 12) (0, 12) (0, 11) (0, 10) (0, 12) (0, 12) (0, 12) (0, 11) (0, 12) (0, 11) (0, 10) (0, 12) (0, 11) (0, 11) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 10) (0, 12) (0, 11) (0, 11) (0, 12) (0, 12) (0, 12) (0, 12) 
isTrackOrderEnough: 0  (sz=0)
genPatternPerm of: s263
0 s263 0.918296 3
1 samr 1 2
genPatternPerm of: samr
0 s263 4.8125 32
1 samr 0 1
has_zero_transitions_: 0
**Error: bad track: 's263'**


  


  This error message indicates that the untrunc program is having trouble with a track named 's263'. This track could be a track or codec within the video file.

  


  How can I resolve this error and successfully repair the corrupted 3GP video ? What steps should I follow or can you suggest an alternative approach ?

  


  Thank you in advance !

  


  I was expecting trunc tool to fix the corrupted/trunced video. But it gave me this error and no matter how much I searched for a solution, I couldn't find anything.

  


• Flutter ffmpeg kit : Invalid size error when trying to scale video

  27 juillet 2023, par veryepicdude

  I'm trying to resize a video to match instagram's video format requirements. I'm using the ffmpeg_kit_flutter_full_gpl: ^5.1.0 package to do so and this is the function I'm calling :

  


  Future<void> resizeVideo(String input, String output) async {&#xA;&#xA;  final command = &#x27;-i $input -c:v libx264 -aspect 16:9 -crf 18 -vf "scale=iw*min(1280/iw\,720/ih):ih*min(1280/iw\,720/ih),pad=1280:720:(1280-iw)/2:(720-ih)/2" -fpsmax 60 -preset ultrafast -c:a aac -b:a 128k -ac 1 -use_editlist false -ar 48000 -pix_fmt yuv420p -movflags &#x2B;faststart -t 59 -y $output&#x27;;&#xA;  final session = await FFmpegKit.execute(command);&#xA;  print("resize done with ${await session.getReturnCode()}");&#xA;}&#xA;</void>

  


  However I get this error every time :

  


   Stream #0:0[0x1](und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 60 kb/s (default)
    Metadata:
      creation_time   : 2023-07-27T15:30:28.000000Z
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](und): Video: hevc (hvc1 / 0x31637668), yuv420p(tv, smpte170m/bt709/bt709), 720x1280, 2085 kb/s, 30 fps, 30 tbr, 600 tbn (default)
    Metadata:
      creation_time   : 2023-07-27T15:30:28.000000Z
      handler_name    : Core Media Video
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:1 -> #0:0 (hevc (native) -> h264 (libx264))
  Stream #0:0 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[Parsed_scale_0 @ 0x2834a53f0] Invalid size 'iw*min(1280/iw'
[AVFilterGraph @ 0x28278e3a0] Error initializing filter 'scale'[AVFilterGraph @ 0x28278e3a0]  with args 'iw*min(1280/iw'[AVFilterGraph @ 0x28278e3a0] 
Error reinitializing filters!
Failed to inject frame into filter network: Invalid argument
Error while processing the decoded data for stream #0:1
[aac @ 0x105334290] Qavg: 461.613
[aac @ 0x105334290] 2 frames left in the queue on closing


  


  Removing the scale filter makes the function work fine, but it fails the instagram video requirements listed here.
Any help will be greatly appreciated.