After a year and a half of development release , a cross-platform set of components written in C for creating a wide range of multimedia applications, from media players and audio/video file converters to VoIP applications and streaming systems. The GStreamer code is distributed under the LGPLv2.1 license. Updates for the gst-plugins-base 1.18, gst-plugins-good 1.18, gst-plugins-bad 1.18, gst-plugins-ugly 1.18, as well as the gst-libav 1.18 wrapper and the gst-rtsp-server 1.18 streaming server are available simultaneously. At the API and ABI level, the new release is backward compatible with the 1.0 branch. Binary builds will be available soon. for Android, iOS, macOS, and Windows (on Linux, it is recommended to use packages from the distribution).
Key GStreamer 1.18:
- A new high-level API has been proposed , which can be used in applications for transcoding files from one format to another.
- Improved information presentation and video processing with High Dynamic Range (HDR) support.
- Added the ability to change playback speed on the fly.
- Support has been added for the codec set (Active Format Description) and Bar Data.
- RTSP server and client support has been added for (fast forwarding while maintaining image quality), described in the ONVIF (Open Network Video Interface Forum) specification.
- On the Windows platform, hardware acceleration for video decoding has been implemented using DXVA2 / Direct3D11 API, as well as a plugin for video capture and encoding acceleration using Microsoft Media Foundation. UWP (Universal Windows Platform) support has been added.
- A qmlgloverlay element has been added to overlay a Qt Quick scene on top of an incoming video stream.
- An imagesequencesrc element has been added, making it easier to create a video stream from a sequence of images in JPEG or PNG formats.
- A dashsink element has been added for generating DASH content.
- A dvbsubenc element has been added for encoding DVB subtitles.
- The ability to package MPEG-TS streams with fixed bitrate and SCTE-35 support in a form compatible with cable television networks has been implemented.
- Rtmp2 has been implemented with a new RTMP client implementation with source and sink elements.
- The RTSP Server has added support for headers to control playback speed and scaling.
- A svthevcenc element has been added, a video encoder for H.265 based on the encoder developed by Intel. .
- A vaapioverlay element has been added for compositing using VA-API.
- Support for the RTP extension TWCC (Google Transport-Wide Congestion Control) has been added to rtpmanager.
- The splitmuxsink and splitmuxsrc elements now support auxiliary (AUX) video streams.
- New elements have been introduced for receiving and generating RTP streams using the URI "rtp://".
- An AVTP (Audio Video Transport Protocol) plugin has been added for transmitting audio and video streams sensitive to delays.
- Support for the TR-06-1 profile (RIST — ).
- The rpicamsrc element has been added for capturing video from the Raspberry Pi camera.
- GStreamer Editing Services now supports nested timelines, setting speed tied to individual clips, and the ability to use the OpenTimelineIO format.
- Autotools-based build scripts have been removed. Meson is now the primary build tool.
Source: opennet.ru
