Opened 3 years ago

#9655 new defect

missing RPL compression types

Reported by: Sembiance Owned by:
Priority: normal Component: avformat
Version: git-master Keywords: rpl
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

Summary of the bug:
I've encountered multiple RPL (Acorn Replay Video) video files on old RISC OS CDs that ffmpeg doesn't support at all.

Sample file attached and more here: ​https://telparia.com/fileFormatSamples/video/acornReplayVideo/ (bluegreen, butterfly3, chimes, ducks2, parrot, voyager)

How to reproduce:

% ffmpeg -i parrot out.mp4
ffmpeg version 4.4.1 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 11.2.1 (Gentoo 11.2.1_p20211127 p0) 20211127
[rpl @ 0x17dc7c0] Video format [7][0][0][0] is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[rpl @ 0x17dc7c0] Don't know how to split frames for video format [7][0][0][0]. Video stream will be broken!
[rpl @ 0x17dc7c0] Could not find codec parameters for stream 0 (Video: none ([7][0][0][0] / 0x0007), none, 160x128): unknown codec

Format of RPL files appears to be here: ​https://multimedia.cx/AE7doc.txt

Any chance support for compression type #7 could be added?

Attachments (1)

parrot​ (1.9 MB ) - added by Sembiance 3 years ago.
sample video file

Download all attachments as: .zip

Change History (1)

by Sembiance, 3 years ago

Attachment: parrot​ added

sample video file

Note: See TracTickets for help on using tickets.