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• 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


  


• Handling an arbitrary number of start and stop time pairings to cut a movie file down

  9 juin 2019, par Kieran

  I am writing a function that takes a list of tuples and a file path string as arguments and outputs a cut down video that only includes the frames that fall inside the start/stop pairings provided.

  I’m getting stuck because I am not sure whether the .trim() method of the ’infile’ object is altering the existing object or or creating a new one or doing something else entirely.

  the list of start/stop frame pairings can be arbitrarily long, every example I have found has been for a specific number of start and stop pairings and I can’t find anything describing what data structure needs to be passed back to ffmpeg.concat().

  My code is displayed below :

  import ffmpeg
  
  
  
  frameStamps = [(50,75),(120,700),(1250,1500)]
  
  videoFilePath = 'C:/Users/Kieran/Videos/testMovie.mp4'
  
  outputFolder = 'C:/Users/Kieran/Videos/'
  
  
  
  def slice_video(frameStamps, videoFilePath, outputFolder):
  
  
  
      originalFile = ffmpeg.input(videoFilePath)
  
  
  
      for stamp in frameStamps:
  
          ffmpeg.concat(originalFile.trim(start_frame=stamp[0], end_frame=stamp[1]))
  
  
  
  
  
      ffmpeg.output(outputFolder + 'testoutput.mp4')
  
      ffmpeg.run() 
  
  
  
  slice_video(frameStamps, videoFilePath, outputFolder)

  Now I am able to get the following when I individually print out originalFile.trim() which are getting recognised in the console as "FilterableStream" objects

  trim(end_frame=75, start_frame=50)[None] <29b4fb0736ec>
  
  trim(end_frame=700, start_frame=120)[None] <c66c4e1a48f5>
  
  trim(end_frame=1500, start_frame=1250)[None] &lt;13e0697a5288>  
  
  </c66c4e1a48f5>

  and I have tried passing them back as a list, dictionary and tuple and haven’t been able to get it working

  Output Errors :

    File "C:/Users/Kieran/Example.py", line 21, in slice_video
  
  ffmpeg.output(outputFolder + 'testoutput.mp4')
  
  
  
    File "C:\ProgramData\Anaconda3\lib\site-packages\ffmpeg\_ffmpeg.py", line 94, in output
  
  return OutputNode(streams, output.__name__, kwargs=kwargs).stream()
  
  
  
    File "C:\ProgramData\Anaconda3\lib\site-packages\ffmpeg\nodes.py", line 282, in __init__
  
  kwargs=kwargs
  
  
  
    File "C:\ProgramData\Anaconda3\lib\site-packages\ffmpeg\nodes.py", line 170, in __init__
  
  self.__check_input_len(stream_map, min_inputs, max_inputs)
  
  
  
    File "C:\ProgramData\Anaconda3\lib\site-packages\ffmpeg\nodes.py", line 149, in __check_input_len
  
  raise ValueError('Expected at least {} input stream(s); got {}'.format(min_inputs, len(stream_map)))
  
  
  
  ValueError: Expected at least 1 input stream(s); got 0

• overlay movie.mov over an image file using AVCONV OR FFMPEG

  6 février 2014, par user1087179

  I am trying to overlay transparent mov or flv over an image.

  I am open to both options using ffmpeg or avconv.

  here is my cmd :

  ffmpeg -i bg.png -i input.mov -vf \
  
  '[0:v]setpts=PTS-STARTPTS, pad=iw*2:ih[bg]; \
  
  [1:v]setpts=PTS-STARTPTS,scale=720:400[fg]; [bg][fg]overlay=w' -vf yadif -pix_fmt rgba     -y -vcodec qtrle -an output.mov

  I Get this :

  ffmpeg version 0.8.9-4:0.8.9-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers
  
    built on Nov  9 2013 19:08:00 with gcc 4.6.3
  
  *** THIS PROGRAM IS DEPRECATED ***
  
  This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
  
  Input #0, image2, from '/home/socialvideos/public_html/public/images/blue_bg.png':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  
      Stream #0.0: Video: png, rgb24, 720x400, 25 tbr, 25 tbn, 25 tbc
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/home/socialvideos/public_html/actor/opening/1.mov':
  
    Metadata:
  
      major_brand     : qt  
  
      minor_version   : 537199360
  
      compatible_brands: qt  
  
      creation_time   : 2014-01-22 18:12:38
  
    Duration: 00:00:09.28, start: 0.000000, bitrate: 119710 kb/s
  
      Stream #1.0(eng): Video: qtrle, bgra, 1280x720, 120236 kb/s, PAR 1280:1280 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc
  
      Metadata:
  
        creation_time   : 2014-01-22 18:12:38
  
      Stream #1.1(eng): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
  
      Metadata:
  
        creation_time   : 2014-01-22 18:12:38
  
      Stream #1.2(eng): Data: tmcd / 0x64636D74, 0 kb/s
  
      Metadata:
  
        creation_time   : 2014-01-22 18:12:47
  
  Incompatible pixel format 'rgba' for codec 'qtrle', auto-selecting format 'rgb24'
  
  [buffer @ 0x10cf8c0] w:1280 h:720 pixfmt:bgra
  
  [yadif @ 0x10c8980] mode:0 parity:-1 auto_enable:0
  
  [avsink @ 0x10c8400] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed filter 0 yadif' and the filter 'out'
  
  [yadif @ 0x10c8980] auto-inserting filter 'auto-inserted scaler 1' between the filter 'src' and the filter 'Parsed filter 0 yadif'
  
  [scale @ 0x10cc9a0] w:1280 h:720 fmt:bgra -> w:1280 h:720 fmt:yuv420p flags:0x4
  
  [scale @ 0x10cbdc0] w:1280 h:720 fmt:yuv420p -> w:1280 h:720 fmt:rgb24 flags:0x4
  
  Output #0, mov, to 'out.mov':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #0.0(eng): Video: qtrle, rgb24, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 tbn, 25 tbc
  
      Metadata:
  
        creation_time   : 2014-01-22 18:12:38
  
  Stream mapping:
  
    Stream #1.0 -> #0.0
  
  Press ctrl-c to stop encoding
  
  frame=    2 fps=  0 q=0.0 size=     654kB time=0.08 bitrate=66996.3kbits/s    
  
  frame=    5 fps=  4 q=0.0 size=    1213kB time=0.20 bitrate=49692.2kbits/s    
  
  frame=    8 fps=  4 q=0.0 size=    2068kB time=0.32 bitrate=52952.9kbits/s    
  
  frame=   10 fps=  4 q=0.0 size=    2826kB time=0.40 bitrate=57880.0kbits/s    
  
  frame=   12 fps=  4 q=0.0 size=    3621kB time=0.48 bitrate=61805.2kbits/s    
  
  frame=   14 fps=  4 q=0.0 size=    4433kB time=0.56 bitrate=64846.9kbits/s    
  
  frame=   17 fps=  4 q=0.0 size=    5598kB time=0.68 bitrate=67435.6kbits/s    
  
  frame=   19 fps=  4 q=0.0 size=    6368kB time=0.76 bitrate=68643.7kbits/s    
  
  frame=   21 fps=  4 q=0.0 size=    7145kB time=0.84 bitrate=69683.8kbits/s    
  
  frame=   23 fps=  4 q=0.0 size=    7901kB time=0.92 bitrate=70352.7kbits/s    
  
  frame=   26 fps=  4 q=0.0 size=    9179kB time=1.04 bitrate=72298.4kbits/s    
  
  frame=   28 fps=  4 q=0.0 size=    9743kB time=1.12 bitrate=71260.9kbits/s    
  
  frame=   30 fps=  4 q=0.0 size=   10562kB time=1.20 bitrate=72100.4kbits/s    
  
  frame=   32 fps=  4 q=0.0 size=   11375kB time=1.28 bitrate=72802.4kbits/s    
  
  frame=   34 fps=  4 q=0.0 size=   12162kB time=1.36 bitrate=73256.3kbits/s    
  
  frame=   37 fps=  4 q=0.0 size=   13404kB time=1.48 bitrate=74190.5kbits/s    
  
  frame=   39 fps=  4 q=0.0 size=   14080kB time=1.56 bitrate=73936.2kbits/s    
  
  frame=   41 fps=  4 q=0.0 size=   14763kB time=1.64 bitrate=73744.3kbits/s    
  
  frame=   44 fps=  4 q=0.0 size=   15690kB time=1.76 bitrate=73030.4kbits/s    
  
  frame=   47 fps=  4 q=0.0 size=   16660kB time=1.88 bitrate=72595.6kbits/s    
  
  frame=   49 fps=  4 q=0.0 size=   17418kB time=1.96 bitrate=72798.4kbits/s    
  
  frame=   51 fps=  4 q=0.0 size=   18060kB time=2.04 bitrate=72524.8kbits/s    
  
  frame=   54 fps=  4 q=0.0 size=   18805kB time=2.16 bitrate=71320.3kbits/s    
  
  frame=   56 fps=  4 q=0.0 size=   19498kB time=2.24 bitrate=71305.2kbits/s    
  
  frame=   58 fps=  4 q=0.0 size=   20178kB time=2.32 bitrate=71247.7kbits/s    
  
  frame=   60 fps=  4 q=0.0 size=   20892kB time=2.40 bitrate=71310.3kbits/s    
  
  frame=   63 fps=  4 q=0.0 size=   22028kB time=2.52 bitrate=71609.8kbits/s    
  
  frame=   65 fps=  4 q=0.0 size=   22729kB time=2.60 bitrate=71613.6kbits/s    
  
  frame=   68 fps=  4 q=0.0 size=   23827kB time=2.72 bitrate=71762.8kbits/s    
  
  frame=   71 fps=  4 q=0.0 size=   24865kB time=2.84 bitrate=71724.5kbits/s    
  
  frame=   74 fps=  4 q=0.0 size=   26029kB time=2.96 bitrate=72035.8kbits/s    
  
  frame=   76 fps=  4 q=0.0 size=   26746kB time=3.04 bitrate=72074.2kbits/s    
  
  frame=   79 fps=  4 q=0.0 size=   27642kB time=3.16 bitrate=71659.3kbits/s    
  
  frame=   82 fps=  4 q=0.0 size=   28743kB time=3.28 bitrate=71787.0kbits/s    
  
  frame=   85 fps=  4 q=0.0 size=   29929kB time=3.40 bitrate=72111.4kbits/s    
  
  frame=   87 fps=  4 q=0.0 size=   30602kB time=3.48 bitrate=72037.4kbits/s    
  
  frame=   89 fps=  4 q=0.0 size=   31242kB time=3.56 bitrate=71892.2kbits/s    
  
  frame=   92 fps=  4 q=0.0 size=   32091kB time=3.68 bitrate=71437.1kbits/s    
  
  frame=   95 fps=  4 q=0.0 size=   32972kB time=3.80 bitrate=71080.2kbits/s    
  
  frame=   98 fps=  4 q=0.0 size=   34038kB time=3.92 bitrate=71132.0kbits/s    
  
  frame=  101 fps=  4 q=0.0 size=   35037kB time=4.04 bitrate=71046.2kbits/s    
  
  frame=  104 fps=  4 q=0.0 size=   35901kB time=4.16 bitrate=70697.3kbits/s    
  
  frame=  107 fps=  4 q=0.0 size=   36980kB time=4.28 bitrate=70780.7kbits/s    
  
  frame=  109 fps=  4 q=0.0 size=   37800kB time=4.36 bitrate=71022.0kbits/s    
  
  frame=  111 fps=  4 q=0.0 size=   38488kB time=4.44 bitrate=71011.5kbits/s    
  
  frame=  114 fps=  4 q=0.0 size=   39415kB time=4.56 bitrate=70808.9kbits/s    
  
  frame=  117 fps=  4 q=0.0 size=   40404kB time=4.68 bitrate=70725.0kbits/s    
  
  frame=  119 fps=  4 q=0.0 size=   41076kB time=4.76 bitrate=70691.3kbits/s    
  
  frame=  121 fps=  4 q=0.0 size=   41885kB time=4.84 bitrate=70892.5kbits/s    
  
  frame=  123 fps=  4 q=0.0 size=   42622kB time=4.92 bitrate=70967.6kbits/s    
  
  frame=  125 fps=  4 q=0.0 size=   43368kB time=5.00 bitrate=71054.0kbits/s    
  
  frame=  127 fps=  4 q=0.0 size=   44161kB time=5.08 bitrate=71214.6kbits/s    
  
  frame=  130 fps=  4 q=0.0 size=   45070kB time=5.20 bitrate=71002.5kbits/s    
  
  frame=  132 fps=  4 q=0.0 size=   45782kB time=5.28 bitrate=71032.2kbits/s    
  
  frame=  134 fps=  4 q=0.0 size=   46599kB time=5.36 bitrate=71220.3kbits/s    
  
  frame=  136 fps=  4 q=0.0 size=   47270kB time=5.44 bitrate=71183.8kbits/s    
  
  frame=  138 fps=  4 q=0.0 size=   47865kB time=5.52 bitrate=71034.5kbits/s    
  
  frame=  140 fps=  4 q=0.0 size=   48449kB time=5.60 bitrate=70874.3kbits/s    
  
  frame=  142 fps=  4 q=0.0 size=   49013kB time=5.68 bitrate=70689.4kbits/s    
  
  frame=  144 fps=  4 q=0.0 size=   49613kB time=5.76 bitrate=70560.8kbits/s    
  
  frame=  147 fps=  4 q=0.0 size=   50683kB time=5.88 bitrate=70610.9kbits/s    
  
  frame=  149 fps=  4 q=0.0 size=   51231kB time=5.96 bitrate=70417.5kbits/s    
  
  frame=  151 fps=  4 q=0.0 size=   51734kB time=6.04 bitrate=70166.0kbits/s    
  
  frame=  153 fps=  4 q=0.0 size=   52097kB time=6.12 bitrate=69734.9kbits/s    
  
  frame=  155 fps=  4 q=0.0 size=   52591kB time=6.20 bitrate=69487.4kbits/s    
  
  frame=  157 fps=  4 q=0.0 size=   53374kB time=6.28 bitrate=69624.1kbits/s    
  
  frame=  159 fps=  4 q=0.0 size=   54086kB time=6.36 bitrate=69665.9kbits/s    
  
  frame=  161 fps=  4 q=0.0 size=   54805kB time=6.44 bitrate=69715.3kbits/s    
  
  frame=  163 fps=  4 q=0.0 size=   55574kB time=6.52 bitrate=69826.0kbits/s    
  
  frame=  166 fps=  4 q=0.0 size=   56683kB time=6.64 bitrate=69932.4kbits/s    
  
  frame=  168 fps=  4 q=0.0 size=   57421kB time=6.72 bitrate=69999.1kbits/s    
  
  frame=  170 fps=  4 q=0.0 size=   58230kB time=6.80 bitrate=70150.4kbits/s    
  
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  frame=  197 fps=  4 q=0.0 size=   67568kB time=7.88 bitrate=70243.5kbits/s    
  
  frame=  200 fps=  4 q=0.0 size=   68378kB time=8.00 bitrate=70018.6kbits/s    
  
  frame=  203 fps=  4 q=0.0 size=   69112kB time=8.12 bitrate=69724.5kbits/s    
  
  frame=  205 fps=  4 q=0.0 size=   69872kB time=8.20 bitrate=69804.1kbits/s    
  
  frame=  207 fps=  4 q=0.0 size=   70548kB time=8.28 bitrate=69798.2kbits/s    
  
  frame=  210 fps=  4 q=0.0 size=   71469kB time=8.40 bitrate=69699.4kbits/s    
  
  frame=  213 fps=  4 q=0.0 size=   72386kB time=8.52 bitrate=69599.5kbits/s    
  
  frame=  216 fps=  4 q=0.0 size=   73281kB time=8.64 bitrate=69480.8kbits/s    
  
  frame=  219 fps=  4 q=0.0 size=   74241kB time=8.76 bitrate=69427.7kbits/s    
  
  frame=  222 fps=  4 q=0.0 size=   75010kB time=8.88 bitrate=69198.2kbits/s    
  
  frame=  225 fps=  4 q=0.0 size=   75861kB time=9.00 bitrate=69050.0kbits/s    
  
  frame=  227 fps=  4 q=0.0 Lsize=   76442kB time=9.08 bitrate=68966.0kbits/s    
  
  video:76439kB audio:0kB global headers:0kB muxing overhead 0.003299%

  However the video generated does not have background image and have white color instead. please help..