Xi Ruoyao 6ea56e7fd3 gst-libav: fix build with ffmpeg-5.0.0
Latest ffmpeg has removed avcodec_get_context_defaults(), and its
documentation says a new AVCodecContext should be allocated for this
purpose.  The pointer returned by avcodec_find_decoder() is now
const-qualified so we also need to adjust for it.  And, AVCOL_RANGE_MPEG
is now rejected with strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1531>
2022-01-17 18:11:32 +08:00
..
2021-11-03 15:43:43 +00:00
2021-11-03 15:43:43 +00:00
2021-11-03 15:43:43 +00:00
2021-11-03 15:43:43 +00:00

gst-libav

This module contains a GStreamer plugin for using the encoders, decoders, muxers, and demuxers provided by FFmpeg. It is called gst-libav for historical reasons.

Plugin Dependencies and Licenses

GStreamer is developed under the terms of the LGPL-2.1 (see COPYING file for details), and that includes the code in this repository.

However, this repository depends on FFmpeg, which can be built in the following modes using various ./configure switches: LGPL-2.1, LGPL-3, GPL, or non-free.

This can mean, for example, that if you are distributing an application which has a non-GPL compatible license (like a closed-source application) with GStreamer, you have to make sure not to build FFmpeg with GPL code enabled.

Overall, when using plugins that link to GPL libraries, GStreamer is for all practical reasons under the GPL itself.

The above recommendations are not legal advice, and you are responsible for ensuring that you meet your licensing obligations.