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update shockwave/swf/flash/flw panorama with lost original files to circular panorama for html5
Download:
https://cultivateunderstanding.com/Digital_Media/mae_hong_son/media/vess_alley_2_rev_1_out.swf
Open the swf file in ffmpeg:
ffmpeg -i vess_alley_2_rev_1_out.swf
and get information on the file:
Input #0, swf, from 'vess_alley_2_rev_1_out.swf':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: rawvideo (ARGB / 0x42475241), argb, 160x96, 60 tbr, 60 tbn [navigation help, two small files]
Stream #0:1: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 588x720 [color files + b/w preview files]
SAR 96:96 DAR 49:60], 60 fps, 60 tbr, 60 tbn
This is not very deep info, duration is missing and more. But ffmpeg was not made for swf.
mjpeg2jpeg might be applicable here, the script without "-bsf:v mjpeg2jpeg", gives 96dpi images, with it they will be 72dpi, no other change that I can see. The individual frames can be extracted without loss.
ffmpeg -i vess_alley_2_rev_1_out.swf -c:v copy -bsf:v mjpeg2jpeg xzx/%02d.jpg
cases
gives me 12 images, 6 b/w, 6 color, as the b/w images are smaller preview images we disregard them.
xzx/1.jpg, 588x720 xzx/07.jpg, 2355x2880
xzx/2.jpg, 588x720 xzx/08.jpg, 2355x2880
to to
xzx/6.jpg, 588x720 xzx/12.jpg, 2355x2880
The 6 color ones needed to be reordered.
rename
07 to 03
08 to 04
09 to 02
10 to 05
11 to 01
12 to 06
You can do that in Terminal with bash:
mkdir 1
mv 07.jpg 1/03.jpg
mv 08.jpg 1/04.jpg
mv 09.jpg 1/02.jpg
mv 10.jpg 1/05.jpg
mv 11.jpg 1/01.jpg
mv 12.jpg 1/06.jpg
ffmpeg -pattern_type glob -i "xzx/1/*.jpg" -vf "tile=6x1" xzx/vess2.jpg
And the color image, vess2.jpg, 14130x2880 (but here showing a smaller image).
If you need the panorama file to be in 2:1 ratio, pad the images, see: reassemble an old pano
And then to Pano2VR or similar for the html5 conversion.
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