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Sur d’autres sites (12580)

  • 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


    


  • FFMPEG overlay video over image using movie filter resulting video with no sound

    22 février 2021, par Herahadi An

    I want to overlay srinked video on the top of single image.
I use movie filter to do that. like this

    


    ffmpeg.exe -loop 1 -i Coronavirus00000000.jpg -vf "movie=C\\:/\Users/\Toshiba/\Pictures/\test vcp/\shopi pro.mp4,scale=1180:-1[inner];[in][inner]overlay=70:70:shortest=1[out]" -y out.mp4


    


    It's work. but the problem, the audio from video is removed. The final video out.mp4 has no sound, even though the original video has.

    


    I have read answer on this threat FFMPEG overlaying video with image removes audio

    


    That recommend to Change into ...[padded]overlay=0:0" -y ... Or add -map 0:a

    


    But I don't understand how to implement that answer into movie filter

    


  • ffmpeg output file size grows faster than linearly with movie length

    14 janvier 2021, par Jakob Filser

    I'm using ffmpeg to string together some .bmp images into a movie. In total, there are 1001 frames, amounting to 0:40 length. The command I'm using is

    


    ffmpeg -f image2 -i render.%05d.bmp -c:v libx264 -s 512:268 render.mp4


    


    The output file is 33,2 MB large, which is about twice the size of a full HD (about 16 times the pixels !) video of the same length. Apart from the file size being unreasonably large, I realized it grows faster than linearly (can't tell exactly if it is quadratic, exponential etc.) with the number of frames. After 100 frames it is about 1536 KB large (which is already too large), after 500 frames it is already 15104 KB, and after 1001 it finally arrives at 34085 KB.

    


    My educated guess would be that for each frame it stores some information about all of the previous frames again, which makes absolutely no sense.

    


    What am I doing wrong ? Before you recommend libx265 to me : It turns the entire video green.