Release 1.5.1

NEWS

@@ -1,145 +1,2 @@
-This is GStreamer Base Plugins 1.4.0
+This is GStreamer Base Plugins 1.5.1
 
-Changes since 1.2:
-
-New API:
- • GstMessageType has GST_MESSAGE_EXTENDED added. All types before
-   that can be used together as a flags type as before, but from
-   that message onwards the types are just counted incrementally.
-   This was necessary to be able to add more message types.
-   In 2.0 GstMessageType will just become an enum and not a flags
-   type anymore.
- • GstDeviceMonitor for device probing, e.g. to list all available
-   audio or video capture devices. This is the replacement for
-   GstPropertyProbe from 0.10.
- • Events accumulate the running-time offset now when travelling
-   through pads, as set by the gst_pad_set_offset() function. This
-   allows to compensate for this in the QOS event for example.
- • GstBuffer has a new flag "tag-memory" that is set automatically
-   when memory is added or removed to a buffer. This allows buffer
-   pools to detect if they can recycle a buffer or need to reset
-   it first.
- • GstToc has new API to mark GstTocEntries as loops.
- • A not-authorized resource error has been defined to notify
-   applications that accessing the resource has failed because
-   of missing authorization and to distinguish this case from others.
-   This change is actually already in 1.2.4.
- • GstPad has a new flag "accept-intersect", that will let the default
-   ACCEPT_CAPS query handler do an intersection instead of subset check.
-   This is interesting for parser elements that can handle incomplete
-   caps.
- • GstCollectPads has support for flushing and a default handler for
-   SEEK events now.
- • New GstFlowAggregator helper object that simplifies handling of
-   flow returns in elements with multiple source pads. Additionally
-   GstPad now always stores the last flow return and provides an
-   API to retrieve it.
- • GstSegment has new API to offset the running time by a specific
-   value and this is used in GstPad to allow positive and negative
-   offsets in gst_pad_set_offset() in all situations.
- • Support for h265/HEVC and VP8 has been added to the codec utils and codec
-   parsers library, and was integrated into various elements.
- • API for adjusting the TLS validation of RTSP connection has been added.
- • The RTSP and SDP library has MIKEY (RFC 3830) support now, and
-   there is API to distinguish between the different RTSP profiles.
- • API to access RTP time information and statistics.
- • Support for auxiliary streams was added to rtpbin.
- • Support for tiled, raw video formats has been added.
- • GstVideoDecoder and GstAudioDecoder have API to help aggregating tag
-   events and merge custom tags into them consistently.
- • GstBufferPool has support for flushing now.
- • playbin/playsink has support for application provided audio and video
-   filters.
- • GstDiscoverer has new and simplified API to get details about missing
-   plugins and information to pass to the plugin installer.
- • The GL library was merged from gst-plugins-gl to gst-plugins-bad,
-   providing a generic infrastructure for handling GL inside GStreamer
-   pipelines and a plugin with some elements using these, especially
-   a video sink. Supported platforms currently are Android, Cocoa (OS X),
-   DispManX (Raspberry Pi), EAGL (iOS), WGL (Windows) and generic X11,
-   Wayland and EGL platforms.
-   This replaces eglglessink and also is supposed to replace osxvideosink.
- • New GstAggregator base class in gst-plugins-bad. This is supposed to
-   replace GstCollectPads in the future and fix long-known shortcomings
-   in its API. Together with the base class some elements are provided
-   already, like a videomixer (compositor).
-
-
-Major changes:
- • New plugins and elements:
-   ∘ v4l2videodec element for accessing hardware codecs on
-     platforms that make them accessible via V4L2, e.g.
-     Samsung Exynos. This comes together with major refactoring
-     of the existing V4L2 elements and the corresponding
-     infrastructure.
-     The v4l2videodec element replaces the mfcdec element.
-   ∘ New downloadbuffer element that replaces the download
-     buffering feature of queue2. Compared to queue2's code
-     it is much simpler and only for this single use case.
-     A noteworthy new feature is that it's downloading gaps
-     in the already downloaded stream parts when nothing else
-     is to be downloaded.
-     This is now used by playbin when download buffering is
-     enabled.
-   ∘ rtpstreampay and rtpstreamdepay elements for transmitting
-     RTP packets over a stream API (e.g. TCP) according to
-     RFC 4571.
-   ∘ rtprtx elements for standard compliant implementation of
-     retransmissions, integrated into the rtpmanager plugin.
-   ∘ audiomixer element that mixes multiple audio streams together
-     into a single one while keeping synchronization. This is
-     planned to become the replacement of the adder element.
-   ∘ OpenNI2 plugin for 3D cameras like the Kinect camera.
-   ∘ OpenEXR plugin for decoding high-dynamic-range EXR images.
-   ∘ curlsshsink and curlsftpsink to write files via SSH/SFTP.
-   ∘ videosignal, ivfparse and sndfile plugins ported from 0.10.
-   ∘ avfvideosrc, vtdec and other elements were ported from 0.10 and
-     are available on OS X and iOS now.
-
- • Other changes:
-   ∘ gst-libav now uses libav 10.2, and gained support for H265/HEVC.
-   ∘ Support for hardware codecs and special memory types has been
-     improved with bugfixes and feature additions in various plugins
-     and base classes.
-   ∘ Various bugfixes and improvements to buffering in queue2 and
-     multiqueue elements.
-   ∘ dvbsrc supports more delivery mechanisms and other features
-     now, including DVB S2 and T2 support.
-   ∘ The MPEGTS library has support for many more descriptors.
-   ∘ Major improvements to tsdemux and tsparse, especially time and
-     seeking related.
-   ∘ souphttpsrc now has support for keep-alive connections,
-     compression, configurable number of retries and configuration
-     for SSL certificate validation.
-   ∘ hlsdemux has undergone major refactoring and works more
-     reliable now and supports more HLS features like trick modes.
-     Also fragments are pushed downstream while they're downloaded
-     now instead of waiting for each fragment to finish.
-   ∘ dashdemux and mssdemux are now also pushing fragments downstream
-     while they're downloaded instead of waiting for each fragment to
-     finish.
-   ∘ videoflip can automatically flip based on the orientation tag.
-   ∘ openjpeg supports the OpenJPEG2 API.
-   ∘ waylandsink was refactored and should be more useful now. It also
-     includes a small library which most likely is going to be removed
-     in the future and will result in extensions to the GstVideoOverlay
-     interface.
-   ∘ gst-rtsp-server supports SRTP and MIKEY now.
-   ∘ gst-libav encoders are now negotiating any profile/level settings
-     with downstream via caps.
-   ∘ Lots of fixes for coverity warnings all over the place.
-   ∘ Negotiation related performance improvements.
-   ∘ 800+ fixed bug reports, and many other bug fixes and other
-     improvements everywhere that had no bug report.
-
-Things to look out for:
- • The eglglessink element was removed and replaced by the glimagesink
-   element.
- • The mfcdec element was removed and replaced by v4l2videodec.
- • osxvideosink is only available in OS X 10.6 or newer.
- • On Android the namespace of the automatically generated Java class
-   for initialization of GStreamer has changed from com.gstreamer to
-   org.freedesktop.gstreamer to prevent namespace pollution.
- • On iOS you have to update your gst_ios_init.h and gst_ios_init.m in
-   your projects from the one included in the binaries if you used the
-   GnuTLS GIO module before. The loading mechanism has slightly changed.