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• ffmpeg : Decoding error : Invalid data found when processing input (.CR2 file)

  16 septembre 2023, par PZL

  I am writing a script to process .CR2 images taken with my Canon EOS M5 camera, but am running into this error (using ffmpeg on Windows) :

  


  $ ../ffmpeg/bin/ffmpeg -i input/397.cr2 output.jpg
ffmpeg version 2023-09-07-git-9c9f48e7f2-full_build-www.gyan.dev Copyright (c) 2000-2023 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-libaribcaption --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-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-dxva2 --enable-d3d11va --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-libcodec2 --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. 19.100 / 58. 19.100
  libavcodec     60. 26.100 / 60. 26.100
  libavformat    60. 11.100 / 60. 11.100
  libavdevice    60.  2.101 / 60.  2.101
  libavfilter     9. 11.100 /  9. 11.100
  libswscale      7.  3.100 /  7.  3.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
Input #0, tiff_pipe, from 'input/397.cr2':
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: tiff, rgb24, 6000x4000 [SAR 1:1 DAR 3:2], 25 fps, 25 tbr, 25 tbn
Stream mapping:
  Stream #0:0 -> #0:0 (tiff (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[tiff @ 00000202bd01b8c0] rps 0 invalid
[vist#0:0/tiff @ 00000202bd01c600] Decoding error: Invalid data found when processing input
[swscaler @ 00000202bf6df340] deprecated pixel format used, make sure you did set range correctly
[vost#0:0/mjpeg @ 00000202bd00e800] No filtered frames for output stream, trying to initialize anyway.
[vost#0:0/mjpeg @ 00000202bd00e800] No information about the input framerate is available. Falling back to a default value of 25fps. Use the -r option if you want a different framerate.
Output #0, image2, to 'output.jpg':
  Metadata:
    encoder         : Lavf60.11.100
  Stream #0:0: Video: mjpeg, yuvj444p(pc, progressive), 6000x4000 [SAR 1:1 DAR 3:2], q=2-31, 200 kb/s, 25 fps, 25 tbn
    Metadata:
      encoder         : Lavc60.26.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
[vist#0:0/tiff @ 00000202bd01c600] Decode error rate 1 exceeds maximum 0.666667
[out#0/image2 @ 00000202bd0104c0] video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#0/image2 @ 00000202bd0104c0] Output file is empty, nothing was encoded(check -ss / -t / -frames parameters if used)
frame=    0 fps=0.0 q=0.0 Lsize=N/A time=N/A bitrate=N/A speed=N/A    
Conversion failed!


  


  The .CR2 file can be opened normally in Photoshop and Windows Photo Viewer (with the raw image extension).

  


  I can get around this issue by converting the image to JPEG using another program, but I would to work with the original file if possible.

  


• ffmpeg fails to load lensfun database

  5 février 2024, par filibis

  I'm trying to correct lens distortion of a video.

  


  I use below code that I took from here : https://ffmpeg.org/ffmpeg-all.html#Examples-132
(I just change the input and output file paths).

  


  ffmpeg -i input.mov -vf lensfun=make=Canon:model="Canon EOS 100D":lens_model="Canon EF-S 18-55mm f/3.5-5.6 IS STM":focal_length=18:aperture=8 -c:v h264 -b:v 8000k output.mov


  


  But I get this error :

  


  [Parsed_lensfun_0 @ 000002a85a0f7ac0] Failed to load lensfun database from default path
[AVFilterGraph @ 000002a8638fa880] Error initializing filters
Error reinitializing filters!
Failed to inject frame into filter network: Invalid data found when processing input
Error while processing the decoded data for stream #0:0
Conversion failed!


  


  How can I resolve this issue ?

  


  I tried to give full path with db_path command as seen below :

  


  ffmpeg -i input.mov -vf lensfun=make=Canon:model="Canon EOS 100D":lens_model="Canon EF-S 18-55mm f/3.5-5.6 IS STM":focal_length=18:aperture=8:db_path=E:\lensfun-master\data\db\slr-canon.xml -c:v h264 -b:v 8000k output.mov


  


  And I get this similar error :

  


  [Parsed_lensfun_0 @ 0000020b955cb7c0] Failed to load lensfun database from E path
[AVFilterGraph @ 0000020b94e2e9c0] Error initializing filters
Error reinitializing filters!
Failed to inject frame into filter network: Invalid data found when processing input
Error while processing the decoded data for stream #0:0
Conversion failed!


  


  Am I doing something wrong ?

  


• How can I sync the frames of multiple videos from a multi-camera capture system using FFMPEG

  9 février 2023, par user9114146

  I have a multi-camera capture setup with 2 canon cameras. Each of these cameras have a tentacle sync e timecode generator connected to them.

  


  After a video capture with these 2 cameras, the generated timecode (SMPTE format) is stored in the video files metadata.

  


  It looks like this 00:00:53;30

  


  Is there a bash script that uses FFmpeg to trim the start time of the video that started earlier (based on timecode) to match the other and then trim the end time of the video that ended last to match the one that ended first ?

  


  The two trimmed output videos should be synced based on the timecode and have the same duration.

  


  So far, my bash script looks like this :

  


  file1="A001C002_220101EB_CANON.MXF"
file2="A001C002_220101US_CANON.MXF"

# Get the SMPTE timecodes of the two files
timecode1=$(ffmpeg -i "$file1" 2>&1 | sed -n 's/timecode.*: \(.*\)/\1/p')
timecode2=$(ffmpeg -i "$file2" 2>&1 | sed -n 's/timecode.*: \(.*\)/\1/p')

# Convert the SMPTE timecode to start time in seconds
start_time_1=$(echo "$timecode1" | awk -F ':' '{print 3600*$1 + 60*$2 + $3}')
start_time_2=$(echo "$timecode2" | awk -F ':' '{print 3600*$1 + 60*$2 + $3}')

# Trim the start of the video with the earlier start timecode so that both videos have the same start time
if [ "$start_time_1" -lt "$start_time_2" ]; then
  ffmpeg -i "$file1" -ss "$start_time_2" -c:v libx264 -crf 18 -preset veryfast trimmed_file1.mp4
  ffmpeg -i "$file2" -c:v libx264 -crf 18 -preset veryfast trimmed_file2.mp4
else
  ffmpeg -i "$file2" -ss "$start_time_1" -c:v libx264 -crf 18 -preset veryfast trimmed_file2.mp4
  ffmpeg -i "$file1" -c:v libx264 -crf 18 -preset veryfast trimmed_file1.mp4
fi

# Get the duration of both files
duration_1=$(ffmpeg -i trimmed_file1.mp4 2>&1 | grep "Duration" | cut -d ' ' -f 4 | sed s/,//)
duration_2=$(ffmpeg -i trimmed_file2.mp4 2>&1 | grep "Duration" | cut -d ' ' -f 4 | sed s/,//)

# Convert the duration to seconds
duration_1_secs=$(echo $duration_1 | awk -F: '{ print ($1 * 3600) + ($2 * 60) + $3 }')
duration_2_secs=$(echo $duration_2 | awk -F: '{ print ($1 * 3600) + ($2 * 60) + $3 }')

# Trim the end time of the video that ended last to match the one that ended first
if [ "$duration_1_secs" -gt "$duration_2_secs" ]; then
  echo "Trimming end time of file1 to match file2"
  ffmpeg -i trimmed_file1.mp4 -t "$duration_2" -c:v libx264 -c:a aac trimmed_file1.mp4
else
  echo "Trimming end time of file2 to match file1"
  ffmpeg -i trimmed_file2.mp4 -t "$duration_1" -c:v libx264 -c:a aac trimmed_file2.mp4
fi


  


  But this does not make the videos have matching frames.

  


  Thanks !