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• Add image to video using ffmpeg , the output file can't be played

  22 juin 2017, par StevenChen

  I need to watermark a mp4 video , but it is not working , It has bothered me for a week,please help me
  here is my code :

  ffmpeg -i sss01.mp4 -i watermark.png -filter_complex "[0:v][1:v] overlay=10:10" -pix_fmt yuv420p -c:a copy output.mp4

  ****This command was executed successfully ,but The size of output.mp4 only is 50kb and it cann’t play. the command detail :****

  >  ffmpeg -i sss01.mp4 -i watermark.png -filter_complex "[0:v][1:v] overlay=10:10" -pix_fmt yuv420p -c:a copy output.mp4  
  
   ffmpeg version git-2017-06-08-a3b5b60 Copyright (c) 2000-2017 the FFmpeg developers  
  
    built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-18)  
  
    configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-openssl  
  
    libavutil      55. 63.100 / 55. 63.100  
  
    libavcodec     57. 96.101 / 57. 96.101  
  
    libavformat    57. 72.101 / 57. 72.101  
  
    libavdevice    57.  7.100 / 57.  7.100  
  
    libavfilter     6. 91.100 /  6. 91.100  
  
    libswscale      4.  7.101 /  4.  7.101  
  
    libswresample   2.  8.100 /  2.  8.100  
  
    libpostproc    54.  6.100 / 54.  6.100  
  
  Input #0, png_pipe, from 'watermark.png':  
  
    Duration: N/A, bitrate: N/A  
  
      Stream #0:0: Video: png, rgba(pc), 215x115 [SAR 2835:2835 DAR 43:23], 25 tbr, 25 tbn, 25 tbc  
  
  Invalid file index 1 in filtergraph description [0:v][1:v] overlay=10:10.  
  
  [root@localhost wwwroot]# ffmpeg -i sss01.mp4 -i watermark.png -filter_complex "[0:v][1:v] overlay=10:10" -pix_fmt yuv420p -c:a copy output.mp4  
  
  ffmpeg version git-2017-06-08-a3b5b60 Copyright (c) 2000-2017 the FFmpeg developers  
  
    built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-18)  
  
    configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-openssl  
  
    libavutil      55. 63.100 / 55. 63.100  
  
    libavcodec     57. 96.101 / 57. 96.101  
  
    libavformat    57. 72.101 / 57. 72.101  
  
    libavdevice    57.  7.100 / 57.  7.100  
  
    libavfilter     6. 91.100 /  6. 91.100  
  
    libswscale      4.  7.101 /  4.  7.101  
  
    libswresample   2.  8.100 /  2.  8.100  
  
    libpostproc    54.  6.100 / 54.  6.100  
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sss01.mp4':  
  
    Metadata:  
  
      major_brand     : isom  
  
      minor_version   : 512  
  
      compatible_brands: isomiso2avc1mp41  
  
      encoder         : Lavf57.72.101  
  
    Duration: 00:03:09.80, start: 0.000000, bitrate: 1547 kb/s  
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 1416 kb/s, 24 fps, 24 tbr, 90k tbn, 48 tbc (default)  
  
      Metadata:  
  
        handler_name    : VideoHandler  
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)  
  
      Metadata:  
  
        handler_name    : SoundHandler  
  
      Stream #0:2(eng): Subtitle: mov_text (tx3g / 0x67337874), 0 kb/s (default)  
  
      Metadata:  
  
        handler_name    : SubtitleHandler  
  
  Input #1, png_pipe, from 'watermark.png':  
  
    Duration: N/A, bitrate: N/A  
  
      Stream #1:0: Video: png, rgba(pc), 215x115 [SAR 2835:2835 DAR 43:23], 25 tbr, 25 tbn, 25 tbc  
  
  File 'output.mp4' already exists. Overwrite ? [y/N] y  
  
  Stream mapping:  
  
    Stream #0:0 (h264) -> overlay:main  
  
    Stream #1:0 (png) -> overlay:overlay  
  
    overlay -> Stream #0:0 (libx264)  
  
    Stream #0:1 -> #0:1 (copy)  
  
  Press [q] to stop, [?] for help  
  
  [libx264 @ 0xb4ee7e0] using SAR=1/1  
  
  [libx264 @ 0xb4ee7e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2  
  
  [libx264 @ 0xb4ee7e0] profile High, level 4.0  
  
  [libx264 @ 0xb4ee7e0] 264 - core 150 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=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=24 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         : Lavf57.72.101  
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)  
  
      Metadata:  
  
        encoder         : Lavc57.96.101 libx264  
  
      Side data:  
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1  
  
      Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 125 kb/s (default)  
  
      Metadata:  
  
        handler_name    : SoundHandler  
  
  frame=   20 fps=0.0 q=0.0 size=       0kB time=00:00:00.81 bitrate=   0.0kbits/sframe=   30 fps= 29 q=0.0 size=       0kB time=00:00:01.23 bitrate=   0.0kbits/sframe=   37 fps= 23 q=0.0 size=       0kB time=00:00:01.50 bitrate=   0.0kbits/sframe=   42 fps= 11 q=28.0 size=      40kB time=00:00:01.71 bitrate= 190.6kbits/frame=   44 fps= 10 q=28.0 size=      46kB time=00:00:01.81 bitrate= 210.2kbits/Killedd=0.41x  

• Video Encoded using FFmpeg is not being played in Azure Kinect Viewer

  4 octobre 2023, par Ashutosh Singla

  I captured a video using a Kinect Azure SDK device and extracted the RGB (Color) track using MKVToolNIX. I could playback this RGB track using Azure Kinect Viewer (v.1.4.1). However, when I encode a video using FFmpeg, the command is given below. I can not playback the video using Azure Kinect Viewer. I get a message :

  


  


  Failed to open Recording

  


  


  ffmpeg -i .\RGB.mkv -c:v libx264 -preset veryfast -crf 18 -c:a aac -b:a 128k RGG_Enc.mkv


  


  I tried with different codecs (H.264, H.265, VP9, VP10, MJPEG) and different settings, but could not play the video in Azure Kinect Viewer. Can someone suggest to me what to do ?

  


  Here is the output of the FFprobe for the original video.

  


    C:\Users\Ashutosh\Desktop\RGB_Encoding> ffprobe -i .\RGB.mkv
  ffprobe version 6.0-full_build-www.gyan.dev Copyright (c) 2007- 
 2023 the FFmpeg developers
 built with gcc 12.2.0 (Rev10, 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-libsnappy --enable-zlib -- 
 enable-librist --enable-libsrt --enable-libssh --enable-libzmq -- 
 enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 
 --enable-libaribb24 --enable-libdav1d --enable-libdavs2 --enable- 
 libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 -- 
 enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 
 --enable-libxvid --enable-libaom --enable-libjxl --enable- 
 libopenjpeg --enable-libvpx --enable-mediafoundation --enable- 
 libass --enable-frei0r --enable-libfreetype --enable-libfribidi -- 
 enable-liblensfun --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-libshaderc --enable-vulkan -- 
 enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme 
 --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb 
 --enable-libmp3lame --enable-libshine --enable-libtheora --enable- 
 libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable- 
 libgsm --enable-libopencore-amrnb --enable-libopus --enable- 
 libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b -- 
 enable-libflite --enable-libmysofa --enable-librubberband -- 
 enable-libsoxr --enable-chromaprint

 libavutil      58.  2.100 / 58.  2.100
 libavcodec     60.  3.100 / 60.  3.100
 libavformat    60.  3.100 / 60.  3.100
 libavdevice    60.  1.100 / 60.  1.100
 libavfilter     9.  3.100 /  9.  3.100
 libswscale      7.  1.100 /  7.  1.100
 libswresample   4. 10.100 /  4. 10.100
 libpostproc    57.  1.100 / 57.  1.100

 [matroska,webm @ 0000018ef5f4e240] Could not find codec parameters 
 for stream 1 (Attachment: none): unknown codec
 Consider increasing the value for the 'analyzeduration' (0) and 
 'probesize' (5000000) options

 Input #0, matroska,webm, from '.\RGB.mkv':
 Metadata:
 title           : Azure Kinect
 encoder         : libebml v1.4.4 + libmatroska v1.7.1
 creation_time   : 2023-08-04T11:52:43.000000Z
 Duration: 00:00:40.03, start: 0.033000, bitrate: 126708 kb/s
 Stream #0:0(eng): Video: mjpeg (Baseline) (MJPG / 0x47504A4D), 
 yuvj422p(pc, bt470bg/unknown/unknown), 2048x1536, SAR 1:1 DAR 4:3, 
 30 fps, 30 tbr, 1k tbn (default)
 
 Metadata:
 title           : COLOR
  BPS             : 126696930
  DURATION        : 00:00:40.029000000
  NUMBER_OF_FRAMES: 1201
  NUMBER_OF_BYTES : 633943931
  _STATISTICS_WRITING_APP: mkvmerge v76.0 ('Celebration') 64-bit
  _STATISTICS_WRITING_DATE_UTC: 2023-08-04 11:52:43
  _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES

Stream #0:1: Attachment: none
Metadata:
  filename        : calibration.json
  mimetype        : application/octet-stream
 Unsupported codec with id 0 for input stream 1

     


  


  This example video contains only one channel (RGB) from the original video. I am able to play this video using Azure Kinect Viewer.

  


• Extract audio from youtube in a client-side script

  5 mai 2018, par Kevin

  There are a lot of node libraries for turning a youtube video into an audio stream, but all of them rely on a C-library called ffmpeg.

  Ffmpeg has been ported to javascript as well, but it has a 30MB size, which seems rather cumbersome (ffmpeg does a lot more than just rip audio from youtube, it has many advanced audio filtering techniques that won’t be needed for this application).

  Lastly, I came across this link,https://hackernoon.com/how-to-build-an-audio-processor-in-your-browser-302cb7aa502a, which claims to be a client-side audio processor but really does all the stuff on the server-side, and then says that stuff can’t be done in the client because of CORS (not sure I understand this, can’t CORS be avoided with a simple flag in the request ?).

  Does anyone know of any way to stream audio within the client-side browser, specifically from youtube, in a manner that’s general and unopposed ?