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Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 123 |
1 files changed, 1 insertions, 122 deletions
@@ -1,123 +1,2 @@ -This is GStreamer Ugly Plugins 1.2.0 - -Changes since 1.0: - -New API: - • GstContext negotiation / sharing / announcing for sharing a - generic context between elements, e.g. a display handle - • GL texture upload conversion meta for allowing different - buffer types to be converted to an OpenGL texture - • GstCapsFeatures as extension to GstCaps for allowing the - negotiation of specific memory or meta requirements between - elements - • GstMemory flags for contiguous and non-mappable memory - • The stream-start event has optional flags now, e.g. for signalling - sparse streams - • The stream-start even has an optional group-id field now to signal - all streams that should be played together - • Allocators library in gst-plugins-base, currently only with generic - dmabuf memory support - • insertbin library for easier handling of dynamically linked - pipelines (in -bad for now) - • EGL helper library (in -bad for now) - • MPEG-TS data structure library (in -bad for now) - • New GstVideoRegionOfInterestMeta to describe a region of interest on - video frames. - • GstVideoDecoder/Encoder has new ::flush() vfunc to replace the - ill-defined ::reset() vfunc. - • The URI query allows to query the redirected URI now. - -Major changes: - • New tool: gst-play-1.0 in gst-plugins-base for basic playback - testing on the command line. - • New plugins: - ∘ mssdemux for Microsoft Smooth Streaming - ∘ dashdemux for DASH adaptive streaming protocol - ∘ bluez for interaction with Bluetooth devices - ∘ openjpeg for JPEG2000 decoding and encoding - ∘ daala for experimental Daala decoding and encoding - ∘ vpx plugin has experimental VP9 decoding and encoding support - ∘ webp plugin for WebP decoding (encoding to be added later) - ∘ Various others: yadif, srtp, sbc, fluidsynth, midiparse, - mfc, ivtv, accuraterip and audiofxbad - - • Moved plugins: - ∘ dtmf, vp8rtp, scaletempo and rtpmux plugins are in - gst-plugins-good now - - • Video: - ∘ Fix handling of interlaced video in converters such as videoscale - and videoconvert (e.g. scale both fields independently) - ∘ videoconvert will try harder to minimise quality losses when - conversion is necessary - ∘ The experimental GstSurfaceConverter, GstSurfaceMeta and - GstVideoContext APIs from the (confusingly-named) - libgstbasevideo-1.0 library in gst-plugins-bad have now been - removed and been replaced by new APIs in GStreamer Core and - gst-plugins-base (see above). Since that was all that was left in - this library, the entire experimental libgstbasevideo-1.0 library - has been removed from gst-plugins-bad - ∘ Chroma subsampling and chroma siting conversion is better handled - in videoconvert and the support for interlaced video was improved. - ∘ New pinwheel and spoke patterns in videotestsrc - ∘ videomixer can now accept different video formats on its sinkpads - and converts to a common format during mixing - - • Audio: - ∘ audioconvert will try harder to minimise quality losses when - conversion is necessary - ∘ adder now allows muting/unmuting of its input streams, and also - per-input stream volume - ∘ pulseaudio elements can switch between devices during playback now - ∘ aacparse can convert between ADTS←→RAW - - • Platform specific changes: - ∘ Caps, events, etc. are now printed in the GStreamer debug logs - with their content instead of just the pointer address even on - non-glibc platforms (e.g. Windows, OSX, Android). - ∘ Network elements (UDP/TCP) now work better with platforms, - where IPv6 sockets can't handle IPv4 (e.g. Windows) - ∘ Linux/BSD: v4l2 had many improvements and cleanups - - • Other changes: - ∘ gst-libav now uses libav 9 - ∘ Static linking of plugins is supported now (also in 1.0.7) - ∘ rtspsrc: add support for NetClientClock: when the server suggests a - GstNetTimeProvider in the SDP, set up a GstNetClientClock that - slaves to the remote clock and suggest this clock in provide_clock. - Simplifies synchronized playback of a resource from an RTSP server. - gst-rtsp-server now supports adding this to the SDP and can provide - a network clock - ∘ RTP retransmission / NACK support and big RTP jitterbuffer improvements - ∘ SRTP and DTLS support - ∘ Changes to many elements and core to use the correct sticky event - order and also not lose any important sticky events during flushing - ∘ >1000 fixed bug reports, and many other bug fixes and other - improvements everywhere that had no bug report - -Things to look out for: - • Single header includes for all libraries, e.g. #include - <gst/video/video.h> - this was needed for some bindings. - • Stricter (correct) caps subset checking in some cases where this was - not correct before. Caps will now always fail to be a compatible - subset of another set of caps if the subset caps are missing some - fields that the superset caps have. This might lead to not-negotiated - errors if caps are incomplete now. However, it also prevents possible - data corruption caused by piping data formatted in an - incompatible/unexpected way into some elements. Check your h264 caps - for stream-format and alignment fields and AAC caps for the - stream-format field. This change will also be included in the next - stable 1.0.8 release. - • Stricter checking for missing events and correct sticky event order - (stream-start, caps, segment) in some places; this is not enabled in - stable releases by default, but you may get warnings when using git - builds, development releases or when compiling with - -UG_DISABLE_ASSERT in CFLAGS - • x264enc now outputs data in byte-stream by default if downstream has - ANY caps (e.g. appsink without caps set, filesink, udpsink, - tcpserversink etc.) - • The MPEG TS demuxer posts messages contain the PMT, PAT, etc. in a - different format now. This new format uses the data structures from - the new MPEGTS library - • The GstContext API has changed between 1.1.4 and 1.1.90 +This is GStreamer Ugly Plugins 1.2.1 |