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Batch conversion for RICOH THETA S 360 degree movies

Last updated at Posted at 2016-03-23

tl;dr;

You can convert a RICOH THETA S movie with the following command:

/Applications/RICOH\ THETA.app/Contents/Resources/tools/DualfishBlender.osx \
  source_file.MP4 \
  output_file.MP4

Intro

If you took a 360-degree movie by using RICOH THETA, you need to convert the raw *.MP4 file into a stitched *.MP4 file. On Mac OS X, RICOH THETA for Mac application can be used for the conversion. But it doesn't support batch conversion, you need to drag-and-drop the raw *.MP4 files one-by-one manually. It's really annoying, especially if you have a handful number of movies.

This post explains how you can convert multiple movies at once. The following configurations are assumed:

  • Device: RICOH THETA S
  • OS: Mac OS X v10.10
  • Tool: RICOH THETA for Mac v2.1.1

Download movies from RICOH Theta S to your Mac OS X

You can use the Image Capture to download movies from RICOH Theta S. It is one of preinstalled tools on Mac OS X. Since it is out of the scope of this post, I won't explain it in detail. Please check it by yourself :)

CUI conversion

The RICOH THETA for Mac provides a GUI, but it also contains a command line tool which can be invoked on the terminal directly. You can find the tool at the following location by default. If you installed RICOH THETA for Mac in any other location, please adjust the file path accordingly:

/Applications/RICOH THETA.app/Contents/Resources/tools/DualfishBlender.osx

This tool takes 2 arguments, source and output. If you have R0010001.MP4, and would like to convert it into R0010001_er.MP4 (default naming convention by the GUI), you can use the following command:

/Applications/RICOH\ THETA.app/Contents/Resources/tools/DualfishBlender.osx R0010001.MP4 R0010001_er.MP4

Batch conversion

The command line tool lets you convert the movies without GUI, but it still needs manual invocation on each *.MP4 files. The following script searches all *.MP4 files in the current directory and its subdirectories recursively, and stitch them automatically.

#!/bin/sh

DUALFISH_BLENDER=/Applications/RICOH\ THETA.app/Contents/Resources/tools/DualfishBlender.osx
SUFFIX=_er
if [ "${1}" = "dry" ]; then
  DRY=echo
fi

find . -name '*.MP4' \
  | sed "s/\.MP4$//; s/${SUFFIX}$//;" \
  | sort \
  | uniq -c \
  | grep '^  *1 ' \
  | awk '{print $2}' \
  | xargs -n 1 -I % ${DRY} "${DUALFISH_BLENDER}" %.MP4 %${SUFFIX}.MP4

For RICOH THETA m15 users

The RICOH THETA m15, which is the previous version of RICOH THETA S, outputs a raw movie as a *.MOV file. The command line tool (v2.1.1) also supports the *.MOV files as well. The following script, which is a slightly modified version, should work for m15 as well, I didn't test it though.

#!/bin/sh

DUALFISH_BLENDER=/Applications/RICOH\ THETA.app/Contents/Resources/tools/DualfishBlender.osx
SUFFIX=_er
if [ "${1}" = "dry" ]; then
  DRY=echo
fi

find . -name '*.MP4' -o -name '*.MOV' \
  | sed "s/\.MP4$//; s/\.MOV$//; s/${SUFFIX}$//;" \
  | sort \
  | uniq -c \
  | grep '^  *1 ' \
  | awk '{print $2}' \
  | xargs -n 1 -I % ${DRY} "${DUALFISH_BLENDER}" %.MOV %${SUFFIX}.MP4
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