[FFmpeg-devel] [PATCH v13 1/2] avformat/imf: Demuxer
Lynne
dev at lynne.ee
Mon Dec 20 21:19:15 EET 2021
20 Dec 2021, 19:57 by pal at sandflow.com:
> From: Pierre-Anthony Lemieux <pal at palemieux.com>
>
> Signed-off-by: Pierre-Anthony Lemieux <pal at palemieux.com>
> ---
>
> Notes:
> The IMF demuxer accepts as input an IMF CPL. The assets referenced by the CPL can be
> contained in multiple deliveries, each defined by an ASSETMAP file:
>
> ffmpeg -assetmaps <path of ASSETMAP1>,<path of ASSETMAP>,... -i <path of CPL>
>
> If -assetmaps is not specified, FFMPEG looks for a file called ASSETMAP.xml in the same directory as the CPL.
>
> EXAMPLE:
> ffmpeg -i http://ffmpeg-imf-samples-public.s3-website-us-west-1.amazonaws.com/countdown/CPL_f5095caa-f204-4e1c-8a84-7af48c7ae16b.xml out.mp4
>
> The Interoperable Master Format (IMF) is a file-based media format for the
> delivery and storage of professional audio-visual masters.
> An IMF Composition consists of an XML playlist (the Composition Playlist)
> and a collection of MXF files (the Track Files). The Composition Playlist (CPL)
> assembles the Track Files onto a timeline, which consists of multiple tracks.
> The location of the Track Files referenced by the Composition Playlist is stored
> in one or more XML documents called Asset Maps. More details at https://www.imfug.com/explainer.
> The IMF standard was first introduced in 2013 and is managed by the SMPTE.
>
> CHANGE NOTES:
>
> - added libavformat/tests/imf to FATE
>
> MAINTAINERS | 1 +
> configure | 3 +-
> doc/demuxers.texi | 6 +
> libavformat/Makefile | 1 +
> libavformat/allformats.c | 1 +
> libavformat/imf.h | 207 +++++++++
> libavformat/imf_cpl.c | 800 +++++++++++++++++++++++++++++++++++
> libavformat/imfdec.c | 891 +++++++++++++++++++++++++++++++++++++++
> 8 files changed, 1909 insertions(+), 1 deletion(-)
> create mode 100644 libavformat/imf.h
> create mode 100644 libavformat/imf_cpl.c
> create mode 100644 libavformat/imfdec.c
>
You've once again gone back and completely ignored all coding style
issues I pointed out.
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