FFMPEG - Not finding codec parameters

Question

I'm trying to convert a sequence of images into a mpeg movie via FFMPEG, although I keep getting an error saying that it could not find the code parameters (Video: mjpeg). A Google search did not bring much up that was useful.

ffmpeg -f image2 -i /tmp/img%03d.jpg video.mpgFFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --extra-version=4:0.5.1-1ubuntu1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
  libavutil     49.15. 0 / 49.15. 0
  libavcodec    52.20. 1 / 52.20. 1
  libavformat   52.31. 0 / 52.31. 0
  libavdevice   52. 1. 0 / 52. 1. 0
  libavfilter    0. 4. 0 /  0. 4. 0
  libswscale     0. 7. 1 /  0. 7. 1
  libpostproc   51. 2. 0 / 51. 2. 0
  built on Mar  4 2010 12:35:30, gcc: 4.4.3
[mjpeg @ 0x9069870]dqt: 16bit precision
[mjpeg @ 0x9069870]mjpeg: unsupported coding type (c9)
[mjpeg @ 0x9069870]mjpeg: unsupported coding type (cf)
[mjpeg @ 0x9069870]only 8 bits/component accepted
[mjpeg @ 0x9069870]dqt: 16bit precision
[mjpeg @ 0x9069870]huffman table decode error
[mjpeg @ 0x9069870]mjpeg: unsupported coding type (ca)
[mjpeg @ 0x9069870]mjpeg: unsupported coding type (ce)
[mjpeg @ 0x9069870]mjpeg: unsupported coding type (cb)
[mjpeg @ 0x9069870]decode_sos: invalid len (60581)
[mjpeg @ 0x9069870]only 8 bits/component accepted
[mjpeg @ 0x9069870]decode_sos: invalid len (56833)
[mjpeg @ 0x9069870]invalid id 207
[mjpeg @ 0x9069870]mjpeg: unsupported coding type (cd)
[mjpeg @ 0x9069870]huffman table decode error
[image2 @ 0x90682c0]Could not find codec parameters (Video: mjpeg)
/tmp/img%03d.jpg: could not find codec parameters

The images reside in the /tmp directory with names such as img001.jpg and img002.jpg.

Any ideas?

Thanks -Tanner

Solution 1

What ffmpeg is actually trying to tell you is, that your file has extension of jpeg, but the file actually is bmp or some other format.

Make sure that the file is encoded in jpeg and the problem will disappear.

Solution 2

Some people here say that it is because the mjpeg codec cannot really be found. They suggested installing it from the source. I feel that it is more likely that the mjpeg is not installed. I feel there are two solutions for this.

1. You can try to install that codec and see if it helps MJpeg Download For Win
2. You can try forcing the ffmpeg to export it into a different codec Try: ffmpeg -f image2 -i /tmp/img%03d.jpg -vcodec mpeg2video video.mpg

Solution 3

It may be necessary to specify the input codec for the series of images. Note the -c:v gif addition in the second example, to be placed before the input source:

$ ffmpeg -f image2 -i %03d.gif zzz.webm
# Error: %03d.gif: could not find codec parameters

$ ffmpeg -f image2 -c:v gif -i %03d.gif zzz.webm
# Works! ffmpeg version 2.7

Solution 4

There can be several issues of FFmpeg not being able decode your image. Other answers aren't insightful on this issue, none addressed the issue of unsupported coding algorithms.

The JFIF standard allows for Huffman or Arithmetic coding (Annex B.1.1.5). FFmpeg's implementation however, doesn't consider for Arithmetic coding, it outputs similar error messages to yours.

---

# query the coding type
exiftool image.jpg | grep -i "encoding"

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