In the vast, interconnected world of digital forensics, embedded systems, and proprietary firmware, one occasionally stumbles upon a file name that reads like a cryptic incantation. One such string is fg-selective-videos-lossy.bin .
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00000000 46 47 53 56 01 00 00 00 04 00 00 00 00 00 10 00 FGSV....4...... 00000010 00 00 05 00 00 00 00 20 00 00 01 02 03 04 05 06 ....... ........ Here, 46 47 53 56 is the magic, 01 = version 1, 04 00 00 00 = 4 clips. You might ask, "Why not just use standard MP4?" The answer lies in constraints: fg-selective-videos-lossy.bin
binwalk -e fg-selective-videos-lossy.bin This may carve out raw H.264 streams, which you can then rename to .h264 and play with ffplay : In the vast, interconnected world of digital forensics,
ffplay -f h264 extracted_stream.h264 If you know the index structure, write a Python script to parse headers. Example skeleton: 00000010 00 00 05 00 00 00 00 20 00 00 01 02 03 04 05 06