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Release 1.8.0
This commit is contained in:
Sebastian Dröge
parent
0bf0e6f7e6
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17
ChangeLog
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ChangeLog
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@ -1,9 +1,20 @@
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=== release 1.7.91 ===
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=== release 1.8.0 ===
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2016-03-15 Sebastian Dröge <slomo@coaxion.net>
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2016-03-24 Sebastian Dröge <slomo@coaxion.net>
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* configure.ac:
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releasing 1.7.91
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releasing 1.8.0
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=== release 1.7.91 ===
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2016-03-15 12:34:35 +0200 Sebastian Dröge <sebastian@centricular.com>
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* ChangeLog:
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* NEWS:
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* RELEASE:
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* configure.ac:
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* gst-python.doap:
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Release 1.7.91
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=== release 1.7.90 ===
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787
NEWS
787
NEWS
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@ -1 +1,786 @@
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This is GStreamer 1.7.91
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# GStreamer 1.8 Release Notes
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**GStreamer 1.8.0 was released on 24 March 2016.**
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The GStreamer team is proud to announce a new major feature release in the
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stable 1.x API series of your favourite cross-platform multimedia framework!
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As always, this release is again packed with new features, bug fixes and other
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improvements.
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See [https://gstreamer.freedesktop.org/releases/1.8/][latest] for the latest
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version of this document.
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*Last updated: Thursday 24 March 2016, 10:00 UTC [(log)][gitlog]*
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[latest]: https://gstreamer.freedesktop.org/releases/1.8/
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[gitlog]: https://cgit.freedesktop.org/gstreamer/www/log/src/htdocs/releases/1.8/release-notes-1.8.md
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## Highlights
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- **Hardware-accelerated zero-copy video decoding on Android**
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- **New video capture source for Android using the android.hardware.Camera API**
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- **Windows Media reverse playback** support (ASF/WMV/WMA)
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- **New tracing system** provides support for more sophisticated debugging tools
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- **New high-level GstPlayer playback convenience API**
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- **Initial support for the new [Vulkan][vulkan] API**, see
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[Matthew Waters' blog post][vulkan-in-gstreamer] for more details
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- **Improved Opus audio codec support**: Support for more than two channels; MPEG-TS demuxer/muxer can now handle Opus;
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[sample-accurate][opus-sample-accurate] encoding/decoding/transmuxing with
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Ogg, Matroska, ISOBMFF (Quicktime/MP4), and MPEG-TS as container;
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[new codec utility functions for Opus header and caps handling][opus-codec-utils]
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in pbutils library. The Opus encoder/decoder elements were also moved to
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gst-plugins-base (from -bad), and the opus RTP depayloader/payloader to -good.
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[opus-sample-accurate]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstaudiometa.html#GstAudioClippingMeta
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[opus-codec-utils]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstpbutilscodecutils.html
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- **GStreamer VAAPI module now released and maintained as part of the GStreamer project**
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[vulkan]: https://www.khronos.org/vulkan
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[vulkan-in-gstreamer]: http://ystreet00.blogspot.co.uk/2016/02/vulkan-in-gstreamer.html
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## Major new features and changes
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### Noteworthy new API, features and other changes
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- New GstVideoAffineTransformationMeta meta for adding a simple 4x4 affine
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transformation matrix to video buffers
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- [g\_autoptr()](https://developer.gnome.org/glib/stable/glib-Miscellaneous-Macros.html#g-autoptr)
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support for all types is exposed in GStreamer headers now, in combination
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with a sufficiently-new GLib version (i.e. 2.44 or later). This is primarily
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for the benefit of application developers who would like to make use of
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this, the GStreamer codebase itself will not be using g_autoptr() for
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the time being due to portability issues.
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- GstContexts are now automatically propagated to elements added to a bin
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or pipeline, and elements now maintain a list of contexts set on them.
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The list of contexts set on an element can now be queried using the new functions
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[gst\_element\_get\_context()](https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#gst-element-get-context)
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and [gst\_element\_get\_contexts()](https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#gst-element-get-contexts). GstContexts are used to share context-specific configuration objects
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between elements and can also be used by applications to set context-specific
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configuration objects on elements, e.g. for OpenGL or Hardware-accelerated
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video decoding.
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- New [GST\_BUFFER\_DTS\_OR\_PTS()](https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html#GST-BUFFER-DTS-OR-PTS:CAPS)
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convenience macro that returns the decode timestamp if one is set and
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otherwise returns the presentation timestamp
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- New GstPadEventFullFunc that returns a GstFlowReturn instead of a gboolean.
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This new API is mostly for internal use and was added to fix a race condition
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where occasionally internal flow error messages were posted on the bus when
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sticky events were propagated at just the wrong moment whilst the pipeline
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was shutting down. This happened primarily when the pipeline was shut down
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immediately after starting it up. GStreamer would not know that the reason
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the events could not be propagated was because the pipeline was shutting down
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and not some other problem, and now the flow error allows GStreamer to know
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the reason for the failure (and that there's no reason to post an error
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message). This is particularly useful for queue-like elements which may need
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to asynchronously propagate a previous flow return from downstream.
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- Pipeline dumps in form of "dot files" now also show pad properties that
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differ from their default value, the same as it does for elements. This is
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useful for elements with pad subclasses that provide additional properties,
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e.g. videomixer or compositor.
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- Pad probes are now guaranteed to be called in the order they were added
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(before they were called in reverse order, but no particular order was
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documented or guaranteed)
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- Plugins can now have dependencies on device nodes (not just regular files)
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and also have a prefix filter. This is useful for plugins that expose
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features (elements) based on available devices, such as the video4linux
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plugin does with video decoders on certain embedded systems.
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- gst\_segment\_to\_position() has been deprecated and been replaced by the
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better-named gst\_segment\_position\_from\_running\_time(). At the same time
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gst\_segment\_position\_from\_stream\_time() was added, as well as \_full()
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variants of both to deal with negative stream time.
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- GstController: the interpolation control source gained a new monotonic cubic
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interpolation mode that, unlike the existing cubic mode, will never overshoot
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the min/max y values set.
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- GstNetAddressMeta: can now be read from buffers in language bindings as well,
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via the new gst\_buffer\_get\_net\_address\_meta() function
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- ID3 tag PRIV frames are now extraced into a new GST\_TAG\_PRIVATE\_DATA tag
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- gst-launch-1.0 and gst\_parse\_launch() now warn in the most common case if
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a dynamic pad link could not be resolved, instead of just silently
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waiting to see if a suitable pad appears later, which is often perceived
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by users as hanging -- they are now notified when this happens and can check
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their pipeline.
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- GstRTSPConnection now also parses custom RTSP message headers and retains
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them for the application instead of just ignoring them
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- rtspsrc handling of authentication over tunneled connections (e.g. RTSP over HTTP)
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was fixed
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- gst\_video\_convert\_sample() now crops if there is a crop meta on the input buffer
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- The debugging system printf functions are now exposed for general use, which
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supports special printf format specifiers such as GST\_PTR\_FORMAT and
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GST\_SEGMENT\_FORMAT to print GStreamer-related objects. This is handy for
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systems that want to prepare some debug log information to be output at a
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later point in time. The GStreamer-OpenGL subsystem is making use of these
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new functions, which are [gst\_info\_vasprintf()][gst_info_vasprintf],
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[gst\_info\_strdup\_vprintf()][gst_info_strdup_vprintf] and
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[gst\_info\_strdup\_printf()][gst_info_strdup_printf].
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- videoparse: "strides", "offsets" and "framesize" properties have been added to
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allow parsing raw data with strides and padding that do not match GStreamer
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defaults.
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- GstPreset reads presets from the directories given in GST\_PRESET\_PATH now.
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Presets are read from there after presets in the system path, but before
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application and user paths.
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[gst_info_vasprintf]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstInfo.html#gst-info-vasprintf
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[gst_info_strdup_vprintf]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstInfo.html#gst-info-strdup-vprintf
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[gst_info_strdup_printf]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstInfo.html#gst-info-strdup-printf
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### New Elements
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- [netsim](): a new (resurrected) element to simulate network jitter and
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packet dropping / duplication.
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- New VP9 RTP payloader/depayloader elements: rtpvp9pay/rtpvp9depay
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- New [videoframe_audiolevel]() element, a video frame synchronized audio level element
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- New spandsp-based tone generator source
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- New NVIDIA NVENC-based H.264 encoder for GPU-accelerated video encoding on
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suitable NVIDIA hardware
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- [rtspclientsink](), a new RTSP RECORD sink element, was added to gst-rtsp-server
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- [alsamidisrc](), a new ALSA MIDI sequencer source element
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### Noteworthy element features and additions
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- *identity*: new ["drop-buffer-flags"](https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-plugins/html/gstreamer-plugins-identity.html#GstIdentity--drop-buffer-flags)
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property to drop buffers based on buffer flags. This can be used to drop all
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non-keyframe buffers, for example.
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- *multiqueue*: various fixes and improvements, in particular special handling
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for sparse streams such as substitle streams, to make sure we don't overread
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them any more. For sparse streams it can be normal that there's no buffer for
|
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a long period of time, so having no buffer queued is perfectly normal. Before
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we would often unnecessarily try to fill the subtitle stream queue, which
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could lead to much more data being queued in multiqueue than necessary.
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|
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- *multiqueue*/*queue*: When dealing with time limits, these elements now use the
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new ["GST_BUFFER_DTS_OR_PTS"](https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html#GST-BUFFER-DTS-OR-PTS:CAPS)
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and ["gst_segment_to_running_time_full()"](https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstSegment.html#gst-segment-to-running-time-full)
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API, resulting in more accurate levels, especially when dealing with non-raw
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streams (where reordering happens, and we want to use the increasing DTS as
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opposed to the non-continuously increasing PTS) and out-of-segment input/output.
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Previously all encoded buffers before the segment start, which can happen when
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doing ACCURATE seeks, were not taken into account in the queue level calculation.
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- *multiqueue*: New ["use-interleave"](https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-plugins/html/gstreamer-plugins-multiqueue.html#GstMultiQueue--use-interleave)
|
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property which allows the size of the queues to be optimized based on the input
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streams interleave. This should only be used with input streams which are properly
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timestamped. It will be used in the future decodebin3 element.
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- *queue2*: new ["avg-in-rate"](https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-plugins/html/gstreamer-plugins-queue2.html#GstQueue2--avg-in-rate)
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property that returns the average input rate in bytes per second
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- audiotestsrc now supports all audio formats and is no longer artificially
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limited with regard to the number of channels or sample rate
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- gst-libav (ffmpeg codec wrapper): map and enable JPEG2000 decoder
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- multisocketsink can, on request, send a custom GstNetworkMessage event
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upstream whenever data is received from a client on a socket. Similarly,
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socketsrc will, on request, pick up GstNetworkMessage events from downstream
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and send any data contained within them via the socket. This allows for
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simple bidirectional communication.
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- matroska muxer and demuxer now support the ProRes video format
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- Improved VP8/VP9 decoding performance on multi-core systems by enabling
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multi-threaded decoding in the libvpx-based decoders on such systems
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- appsink has a new ["wait-on-eos"](https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-appsink.html#GstAppSink--wait-on-eos)
|
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property, so in cases where it is uncertain if an appsink will have a consumer for
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its buffers when it receives an EOS this can be set to FALSE to ensure that the
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appsink will not hang.
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- rtph264pay and rtph265pay have a new "config-interval" mode -1 that will
|
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re-send the setup data (SPS/PPS/VPS) before every keyframe to ensure
|
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optimal coverage and the shortest possibly start-up time for a new client
|
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- mpegtsmux can now mux H.265/HEVC video as well
|
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|
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- The MXF muxer was ported to 1.x and produces more standard conformant files now
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that can be handled by more other software; The MXF demuxer got improved
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support for seek tables (IndexTableSegments).
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### Plugin moves
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- The rtph265pay/depay RTP payloader/depayloader elements for H.265/HEVC video
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from the rtph265 plugin in -bad have been moved into the existing rtp plugin
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in gst-plugins-good.
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- The mpg123 plugin containing a libmpg123 based audio decoder element has
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been moved from -bad to -ugly.
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- The Opus encoder/decoder elements have been moved to gst-plugins-base and
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the RTP payloader to gst-plugins-good, both coming from gst-plugins-bad.
|
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|
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### New tracing tools for developers
|
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|
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A new tracing subsystem API has been added to GStreamer, which provides
|
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external tracers with the possibility to strategically hook into GStreamer
|
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internals and collect data that can be evaluated later. These tracers are a
|
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new type of plugin features, and GStreamer core ships with a few example
|
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tracers (latency, stats, rusage, log) to start with. Tracers can be loaded
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and configured at start-up via an environment variable (GST\_TRACER\_PLUGINS).
|
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|
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Background: While GStreamer provides plenty of data on what's going on in a
|
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pipeline via its debug log, that data is not necessarily structured enough to
|
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be generally useful, and the overhead to enable logging output for all data
|
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required might be too high in many cases. The new tracing system allows tracers
|
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to just obtain the data needed at the right spot with as little overhead as
|
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possible, which will be particularly useful on embedded systems.
|
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|
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Of course it has always been possible to do performance benchmarks and debug
|
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memory leaks, memory consumption and invalid memory access using standard
|
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operating system tools, but there are some things that are difficult to track
|
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with the standard tools, and the new tracing system helps with that. Examples
|
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are things such as latency handling, buffer flow, ownership transfer of
|
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events and buffers from element to element, caps negotiation, etc.
|
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|
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For some background on the new tracing system, watch Stefan Sauer's
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GStreamer Conference talk ["A new tracing subsystem for GStreamer"][tracer-0]
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and for a more specific example how it can be useful have a look at
|
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Thiago Santos's lightning talk ["Analyzing caps negotiation using GstTracer"][tracer-1]
|
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and his ["GstTracer experiments"][tracer-2] blog post. There was also a Google
|
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Summer of Code project in 2015 that used tracing system for a graphical
|
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GStreamer debugging tool ["gst-debugger"][tracer-3].
|
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|
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This is all still very much work in progress, but we hope this will provide the
|
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foundation for a whole suite of new debugging tools for GStreamer pipelines.
|
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|
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[tracer-0]: https://gstconf.ubicast.tv/videos/a-new-tracing-subsystem-for-gstreamer/
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[tracer-1]: https://gstconf.ubicast.tv/videos/analyzing-caps-negotiation-using-gsttracer/
|
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[tracer-2]: http://blog.thiagoss.com/2015/07/23/gsttracer-experiments/
|
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[tracer-3]: https://git.gnome.org/browse/gst-debugger
|
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|
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### GstPlayer: a new high-level API for cross-platform multimedia playback
|
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|
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GStreamer has had reasonably high-level API for multimedia playback
|
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in the form of the playbin element for a long time. This allowed application
|
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developers to just configure a URI to play, and playbin would take care of
|
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everything else. This works well, but there is still way too much to do on
|
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the application-side to implement a fully-featured playback application, and
|
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too much general GStreamer pipeline API exposed, making it less accessible
|
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to application developers.
|
||||
|
||||
Enter GstPlayer. GstPlayer's aim is to provide an even higher-level abstraction
|
||||
of a fully-featured playback API but specialised for its specific use case. It
|
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also provides easy integration with and examples for Gtk+, Qt, Android, OS/X,
|
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iOS and Windows. Watch Sebastian's [GstPlayer talk at the GStreamer Conference][gstplayer-talk]
|
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for more information, or check out the [GstPlayer API reference][gstplayer-api]
|
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and [GstPlayer examples][gstplayer-examples].
|
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|
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[gstplayer-api]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad-libs/html/player.html
|
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[gstplayer-talk]: https://gstconf.ubicast.tv/videos/gstplayer-a-simple-cross-platform-api-for-all-your-media-playback-needs-part-1/
|
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[gstplayer-examples]: https://github.com/sdroege/gst-player/
|
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|
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### Adaptive streaming: DASH, HLS and MSS improvements
|
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|
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- dashdemux now supports loading external xml nodes pointed from its MPD.
|
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|
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- Content protection nodes parsing support for PlayReady WRM in mssdemux.
|
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|
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- Reverse playback was improved to respect seek start and stop positions.
|
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|
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- Adaptive demuxers (hlsdemux, dashdemux, mssdemux) now support the SNAP_AFTER
|
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and SNAP_BEFORE seek flags which will jump to the nearest fragment boundary
|
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when executing a seek, which means playback resumes more quickly after a seek.
|
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|
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### Audio library improvements
|
||||
|
||||
- audio conversion, quantization and channel up/downmixing functionality
|
||||
has been moved from the audioconvert element into the audio library and
|
||||
is now available as public API in form of [GstAudioConverter][audio-0],
|
||||
[GstAudioQuantize][audio-1] and [GstAudioChannelMixer][audio-2].
|
||||
Audio resampling will follow in future releases.
|
||||
|
||||
- [gst\_audio\_channel\_get\_fallback\_mask()][audio-3] can be used
|
||||
to retrieve a default channel mask for a given number of channels as last
|
||||
resort if the layout is unknown
|
||||
|
||||
- A new [GstAudioClippingMeta][audio-4] meta was added for specifying clipping
|
||||
on encoded audio buffers
|
||||
|
||||
- A new GstAudioVisualizer base class for audio visualisation elements;
|
||||
most of the existing visualisers have been ported over to the new base class.
|
||||
This new base class lives in the pbutils library rather than the audio library,
|
||||
since we'd have had to make libgstaudio depend on libgstvideo otherwise,
|
||||
which was deemed undesirable.
|
||||
|
||||
[audio-0]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-GstAudioConverter.html
|
||||
[audio-1]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-GstAudioQuantize.html
|
||||
[audio-2]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstaudiochannels.html#gst-audio-channel-mix-new
|
||||
[audio-3]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstaudiochannels.html#gst-audio-channel-get-fallback-mask
|
||||
[audio-4]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstaudiometa.html#GstAudioClippingMeta
|
||||
|
||||
### GStreamer OpenGL support improvements
|
||||
|
||||
#### Better OpenGL Shader support
|
||||
|
||||
[GstGLShader][shader] has been revamped to allow more OpenGL shader types
|
||||
by utilizing a new GstGLSLStage object. Each stage holds an OpenGL pipeline
|
||||
stage such as a vertex, fragment or a geometry shader that are all compiled
|
||||
separately into a program that is executed.
|
||||
|
||||
The glshader element has also received a revamp as a result of the changes in
|
||||
the library. It does not take file locations for the vertex and fragment
|
||||
shaders anymore. Instead it takes the strings directly leaving the file
|
||||
management to the application.
|
||||
|
||||
A new [example][liveshader-example] was added utilizing the new shader
|
||||
infrastructure showcasing live shader edits.
|
||||
|
||||
[shader]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad-libs/html/gst-plugins-bad-libs-gstglshader.html
|
||||
[liveshader-example]: https://cgit.freedesktop.org/gstreamer/gst-plugins-bad/tree/tests/examples/gtk/glliveshader.c
|
||||
|
||||
#### OpenGL GLMemory rework
|
||||
|
||||
[GstGLMemory] was extensively reworked to support the addition of multiple
|
||||
texture targets required for zero-copy integration with the Android
|
||||
MediaCodec elements. This work was also used to provide IOSurface based
|
||||
GLMemory on OS X for zero-copy with OS X's VideoToolbox decoder (vtdec) and
|
||||
AV Foundation video source (avfvideosrc). There are also patches in bugzilla
|
||||
for GstGLMemoryEGL specifically aimed at improving the decoding performance on
|
||||
the Raspberry Pi.
|
||||
|
||||
[GstGLMemory]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad-libs/html/gst-plugins-bad-libs-gstglmemory.html
|
||||
|
||||
A texture-target field was added to video/x-raw(memory:GLMemory) caps to signal
|
||||
the texture target contained in the GLMemory. Its values can be 2D, rectangle
|
||||
or external-oes. glcolorconvert can convert between the different formats as
|
||||
required and different elements will accept or produce different targets. e.g.
|
||||
glimagesink can take and render external-oes textures directly as required for
|
||||
effecient zero-copy on android.
|
||||
|
||||
A generic GL allocation framework was also implemented to support the generic
|
||||
allocation of OpenGL buffers and textures which is used extensively by
|
||||
GstGLBufferPool.
|
||||
|
||||
#### OpenGL DMABuf import uploader
|
||||
|
||||
There is now a DMABuf uploader available for automatic selection that will
|
||||
attempt to import the upstream provided DMABuf. The uploader will import into
|
||||
2D textures with the necesarry format. YUV to RGB conversion is still provided
|
||||
by glcolorconvert to avoid the laxer restrictions with external-oes textures.
|
||||
|
||||
#### OpenGL queries
|
||||
|
||||
Queries of various aspects of the OpenGL runtime such as timers, number of
|
||||
samples or the current timestamp are not possible. The GstGLQuery object uses a
|
||||
delayed debug system to delay the debug output to later to avoid expensive calls
|
||||
to the glGet\* family of functions directly after finishing a query. It is
|
||||
currently used to output the time taken to perform various operations of texture
|
||||
uploads and downloads in GstGLMemory.
|
||||
|
||||
#### New OpenGL elements
|
||||
|
||||
glcolorbalance has been created mirroring the videobalance elements.
|
||||
glcolorbalance provides the exact same interface as videobalance so can be used
|
||||
as a GPU accelerated replacement. glcolorbalance has been added to glsinkbin so
|
||||
usage with playsink/playbin will use it automatically instead of videobalance
|
||||
where possible.
|
||||
|
||||
glvideoflip, which is the OpenGL equiavalant of videoflip, implements the exact
|
||||
same interface and functionality as videoflip.
|
||||
|
||||
#### EGL implementation now selects OpenGL 3.x
|
||||
|
||||
The EGL implementation can now select OpenGL 3.x contexts.
|
||||
|
||||
#### OpenGL API removal
|
||||
|
||||
The GstGLDownload library object was removed as it was not used by anything.
|
||||
Everything is performed by GstGLMemory or in the gldownloadelement.
|
||||
|
||||
The GstGLUploadMeta library object was removed as it was not being used and we
|
||||
don't want to promote the use of GstVideoGLTextureUploadMeta.
|
||||
|
||||
#### OpenGL: Other miscellaneous changes
|
||||
|
||||
- The EGL implementation can now select OpenGL 3.x contexts. This brings
|
||||
OpenGL 3.x to e.g. wayland and other EGL systems.
|
||||
|
||||
- glstereomix/glstereosplit are now built and are usable on OpenGL ES systems
|
||||
|
||||
- The UYVY/YUY2 to RGBA and RGBA to UYVY/YUY2 shaders were fixed removing the
|
||||
sawtooth pattern and luma bleeding.
|
||||
|
||||
- We now utilize the GL\_APPLE\_sync extension on iOS devices which improves
|
||||
performance of OpenGL applications, especially with multiple OpenGL
|
||||
contexts.
|
||||
|
||||
- glcolorconvert now uses a bufferpool to avoid costly
|
||||
glGenTextures/glDeleteTextures for every frame.
|
||||
|
||||
- glvideomixer now has full glBlendFunc and glBlendEquation support per input.
|
||||
|
||||
- gltransformation now support navigation events so your weird transformations
|
||||
also work with DVD menus.
|
||||
|
||||
- qmlglsink can now run on iOS, OS X and Android in addition to the already
|
||||
supported Linux platform.
|
||||
|
||||
- glimagesink now posts unhandled keyboard and mouse events (on backends that
|
||||
support user input, current only X11) on the bus for the application.
|
||||
|
||||
### Initial GStreamer Vulkan support
|
||||
|
||||
Some new elements, vulkansink and vulkanupload have been implemented utilizing
|
||||
the new Vulkan API. The implementation is currently limited to X11 platforms
|
||||
(via xcb) and does not perform any scaling of the stream's contents to the size
|
||||
of the available output.
|
||||
|
||||
A lot of infrasctructure work has been undertaken to support using Vulkan in
|
||||
GStreamer in the future. A number of GstMemory subclasses have been created for
|
||||
integrating Vulkan's GPU memory handling along with VkBuffer's and VkImage's
|
||||
that can be passed between elements. Some GStreamer refcounted wrappers for
|
||||
global objects such as VkInstance, VkDevice, VkQueue, etc have also been
|
||||
implemented along with GstContext integration for sharing these objects with the
|
||||
application.
|
||||
|
||||
### GStreamer VAAPI support for hardware-accelerated video decoding and encoding on Intel (and other) platforms
|
||||
|
||||
#### GStreamer VAAPI is now part of upstream GStreamer
|
||||
|
||||
The GStreamer-VAAPI module which provides support for hardware-accelerated
|
||||
video decoding, encoding and post-processing on Intel graphics hardware
|
||||
on Linux has moved from its previous home at the [Intel Open Source Technology Center][iostc]
|
||||
to the upstream GStreamer repositories, where it will in future be maintained
|
||||
as part of the upstream GStreamer project and released in lockstep with the
|
||||
other GStreamer modules. The current maintainers will continue to spearhead
|
||||
the development at the new location:
|
||||
|
||||
[http://cgit.freedesktop.org/gstreamer/gstreamer-vaapi/][gst-vaapi-git]
|
||||
|
||||
[gst-vaapi-git]: http://cgit.freedesktop.org/gstreamer/gstreamer-vaapi/
|
||||
|
||||
GStreamer-VAAPI relies heavily on certain GStreamer infrastructure API that
|
||||
is still in flux such as the OpenGL integration API or the codec parser
|
||||
libraries, and one of the goals of the move was to be able to leverage
|
||||
new developments early and provide tighter integration with the latest
|
||||
developments of those APIs and other graphics-related APIs provided by
|
||||
GStreamer, which should hopefully improve performance even further and in
|
||||
some cases might also provide better stability.
|
||||
|
||||
Thanks to everyone involved in making this move happen!
|
||||
|
||||
#### GStreamer VAAPI: Bug tracking
|
||||
|
||||
Bugs had already been tracked on [GNOME bugzilla](bgo) but will be moved
|
||||
from the gstreamer-vaapi product into a new gstreamer-vaapi component of
|
||||
the GStreamer product in bugzilla. Please file new bugs against the new
|
||||
component in the GStreamer product from now on.
|
||||
|
||||
#### GStreamer VAAPI: Pending patches
|
||||
|
||||
The code base has been re-indented to the GStreamer code style, which
|
||||
affected some files more than others. This means that some of the patches
|
||||
in bugzilla might not apply any longer, so if you have any unmerged patches
|
||||
sitting in bugzilla please consider checking if they still apply cleany and
|
||||
refresh them if not. Sorry for any inconvenience this may cause.
|
||||
|
||||
#### GStreamer VAAPI: New versioning scheme and supported GStreamer versions
|
||||
|
||||
The version numbering has been changed to match the GStreamer version
|
||||
numbering to avoid confusion: there is a new gstreamer-vaapi 1.6.0 release
|
||||
and a 1.6 branch that is roughly equivalent to the previous 0.7.0 version.
|
||||
Future releases 1.7.x and 1.8.x will be made alongside GStreamer releases.
|
||||
|
||||
While it was possible and supported by previous releases to build against
|
||||
a whole range of different GStreamer versions (such as 1.2, 1.4, 1.6 or 1.7/1.8),
|
||||
in the future there will only be one target branch, so that git master will
|
||||
track GStreamer git master, 1.8.x will target GStreamer 1.8, and
|
||||
1.6.x will target the 1.6 series.
|
||||
|
||||
[iostc]: http://01.org
|
||||
[bgo]: http://bugzilla.gnome.og
|
||||
|
||||
#### GStreamer VAAPI: Miscellaneous changes
|
||||
|
||||
All GStreamer-VAAPI functionality is now provided solely by its GStreamer
|
||||
elements. There is no more public library exposing GstVaapi API, this API
|
||||
was only ever meant for private use by the elements. Parts of it may be
|
||||
resurrected again in future if needed, but for now it has all been made
|
||||
private.
|
||||
|
||||
GStreamer-VAAPI now unconditionally uses the codecparser library in
|
||||
gst-plugins-bad instead of shipping its own internal copy. Similarly,
|
||||
it no longer ships its own codec parsers but relies on the upstream
|
||||
codec parser elements.
|
||||
|
||||
The GStreamer-VAAPI encoder elements have been renamed from vaapiencode_foo
|
||||
to vaapifooenc, so encoders are now called vaapih264enc, vaapih265enc,
|
||||
vaapimpeg2enc, vaapijpegenc, and vaapivp8enc. With this change we now follow
|
||||
the standard names in GStreamer, and the plugin documentation is generated
|
||||
correctly.
|
||||
|
||||
In the case of the decoders, only the jpeg decoder has been split from the
|
||||
general decoding element vaapidecode: vaapijpegdec. This is the first step to
|
||||
split per codec each decoding element. The vaapijpegdec has also been given
|
||||
marginal rank for the time being.
|
||||
|
||||
#### GStreamer VAAPI: New features in 1.8: 10-bit H.265/HEVC decoding support
|
||||
|
||||
Support for decoding 10-bit H.265/HEVC has been added. For the time being
|
||||
this only works in combination with vaapisink though, until support for the
|
||||
P010 video format used internally is added to GStreamer and to the
|
||||
vaGetImage()/vaPutimage() API in the vaapi-intel-driver.
|
||||
|
||||
Several fixes for memory leaks, build errors, and in the internal
|
||||
video parsing.
|
||||
|
||||
Finally, vaapisink now posts the unhandled keyboard and mouse events to the
|
||||
application.
|
||||
|
||||
### GStreamer Video 4 Linux Support
|
||||
|
||||
Colorimetry support has been enhanced even more. It will now properly select
|
||||
default values when not specified by the driver. The range of color formats
|
||||
supported by GStreamer has been greatly improved. Notably, support for
|
||||
multi-planar I420 has been added along with all the new and non-ambiguous RGB
|
||||
formats that got added in recent kernels.
|
||||
|
||||
The device provider now exposes a variety of properties as found in the udev
|
||||
database.
|
||||
|
||||
The video decoder is now able to negotiate the downstream format.
|
||||
|
||||
Elements that are dynamically created from /dev/video\* now track changes on
|
||||
these devices to ensure the registry stay up to date.
|
||||
|
||||
All this and various bug fixes that improve both stability and correctness.
|
||||
|
||||
### GStreamer Editing Services
|
||||
|
||||
Added APIs to handle asset proxying support. Proxy creation is not the
|
||||
responsibility of GES itself, but GES provides all the needed features
|
||||
for it to be cleanly handled at a higher level.
|
||||
|
||||
Added support for changing playback rate. This means that now, whenever a
|
||||
user adds a 'pitch' element (as it is the only known element to change playback
|
||||
rate through properties), GES will handle everything internally. This change
|
||||
introduced a new media-duration-factor property in NleObject which will
|
||||
lead to tweaking of seek events so they have the proper playback range to be
|
||||
requested upstream.
|
||||
|
||||
Construction of NLE objects has been reworked making copy/pasting fully
|
||||
functional and allowing users to set properties on effects right after
|
||||
creating them.
|
||||
|
||||
Rework of the title source to add more flexibility in text positioning,
|
||||
and letting the user get feedback about rendered text positioning.
|
||||
|
||||
Report nlecomposition structural issues (coming from user programing mistakes)
|
||||
into ERROR messages on the bus.
|
||||
|
||||
Add GI/pythyon testsuite in GES itself, making sure the API is working as expected
|
||||
in python, and allowing writing tests faster.
|
||||
|
||||
### GstValidate
|
||||
|
||||
Added support to run tests inside gdb.
|
||||
|
||||
Added a 'smart' reporting mode where we give as much information as possible about
|
||||
critical errors.
|
||||
|
||||
Uses GstTracer now instead of a LD\_PRELOAD library.
|
||||
|
||||
## Miscellaneous
|
||||
|
||||
- encodebin now works with "encoder-muxers" such as wavenc
|
||||
|
||||
- gst-play-1.0 acquired a new keyboard shortcut: '0' seeks back to the start
|
||||
|
||||
- gst-play-1.0 supports two new command line switches: -v for verbose output
|
||||
and --flags to configure the playbin flags to use.
|
||||
|
||||
## Build and Dependencies
|
||||
|
||||
- The GLib dependency requirement was bumped to 2.40
|
||||
|
||||
- The -Bsymbolic configure check now works with clang as well
|
||||
|
||||
- ffmpeg is now required as libav provider, incompatible changes were
|
||||
introduced that make it no longer viable to support both FFmpeg and Libav
|
||||
as libav providers. Most major distros have switched to FFmpeg or are in
|
||||
the process of switching to it anyway, so we don't expect this to be a
|
||||
problem, and there is still an internal copy of ffmpeg that can be used
|
||||
as fallback if needed.
|
||||
|
||||
- The internal ffmpeg snapshot is now FFMpeg 3.0, but it should be possible
|
||||
to build against 2.8 as well for the time being.
|
||||
|
||||
## Platform-specific improvements
|
||||
|
||||
### Android
|
||||
|
||||
- Zero-copy video decoding on Android using the hardware-accelerated decoders
|
||||
has been implemented, and is fully integrated with the GStreamer OpenGL stack
|
||||
|
||||
- ahcsrc, a new camera source element, has been merged and can be used to
|
||||
capture video on android devices. It uses the android.hardware.Camera Java
|
||||
API to capture from the system's cameras.
|
||||
|
||||
- The OpenGL-based QML video sink can now also be used on Android
|
||||
|
||||
- New tinyalsasink element, which is mainly useful for Android but can also
|
||||
be used on other platforms.
|
||||
|
||||
### OS/X and iOS
|
||||
|
||||
- The system clock now uses mach\_absolute\_time() on OSX/iOS, which is
|
||||
the preferred high-resolution monotonic clock to be used on Apple platforms
|
||||
|
||||
- The OpenGL-based QML video sink can now also be used on OS X and iOS (with
|
||||
some Qt build system massaging)
|
||||
|
||||
- New IOSurface based memory implementation in avfvideosrc and vtdec on OS X
|
||||
for zerocopy with OpenGL. The previously used OpenGL extension
|
||||
GL_APPLE_ycbcr_422 is not compatible with GL 3.x core contexts.
|
||||
|
||||
- New GstAppleCoreVideoMemory wrapping CVPixelBuffer's
|
||||
|
||||
- avfvideosrc now supports renegotiation.
|
||||
|
||||
### Windows
|
||||
|
||||
- Various bugs with UDP and multicast were fixed on Windows, mostly related to
|
||||
gst-rtsp-server.
|
||||
|
||||
- A few bugs in directsoundsrc and directsoundsink were fixed that could cause
|
||||
the element to lock up. Also the "mute" property on the sink was fixed, and
|
||||
a new "device" property for device selection was added to the source.
|
||||
|
||||
## Known Issues
|
||||
|
||||
- Building GStreamer applications with the Android NDK r11 is currently not
|
||||
supported due to incompatible changes in the NDK. This is expected to be
|
||||
fixed for 1.8.1.
|
||||
[Bugzilla #763999](https://bugzilla.gnome.org/show_bug.cgi?id=763999)
|
||||
|
||||
- vp8enc crashes on 32 bit Windows, but was working fine in 1.6. 64 bit
|
||||
Windows is unaffected.
|
||||
[Bugzilla #763663](https://bugzilla.gnome.org/show_bug.cgi?id=763663)
|
||||
|
||||
## Contributors
|
||||
|
||||
Adam Miartus, Alban Bedel, Aleix Conchillo Flaqué, Aleksander Wabik,
|
||||
Alessandro Decina, Alex Ashley, Alex Dizengof, Alex Henrie, Alistair Buxton,
|
||||
Andreas Cadhalpun, Andreas Frisch, André Draszik, Anthony G. Basile,
|
||||
Antoine Jacoutot, Anton Bondarenko, Antonio Ospite, Arjen Veenhuizen,
|
||||
Arnaud Vrac, Arun Raghavan, Athanasios Oikonomou, Aurélien Zanelli, Ben Iofel,
|
||||
Bob Holcomb, Branko Subasic, Carlos Rafael Giani, Chris Bass, Csaba Toth,
|
||||
Daniel Kamil Kozar, Danilo Cesar Lemes de Paula, Dave Craig, David Fernandez,
|
||||
David Schleef, David Svensson Fors, David Waring, David Wu, Duncan Palmer,
|
||||
Edward Hervey, Egor Zaharov, Etienne Peron, Eunhae Choi, Evan Callaway,
|
||||
Evan Nemerson, Fabian Orccon, Florent Thiéry, Florin Apostol, Frédéric Wang,
|
||||
George Kiagiadakis, George Yunaev, Göran Jönsson, Graham Leggett,
|
||||
Guillaume Desmottes, Guillaume Marquebielle, Haihua Hu, Havard Graff,
|
||||
Heinrich Fink, Holger Kaelberer, HoonHee Lee, Hugues Fruchet, Hyunil Park,
|
||||
Hyunjun Ko, Ilya Konstantinov, James Stevenson, Jan Alexander Steffens (heftig),
|
||||
Jan Schmidt, Jason Litzinger, Jens Georg, Jimmy Ohn, Joan Pau Beltran,
|
||||
Joe Gorse, John Chang, John Slade, Jose Antonio Santos Cadenas, Josep Torra,
|
||||
Julian Bouzas, Julien Isorce, Julien Moutte, Justin Kim, Kazunori Kobayashi,
|
||||
Koop Mast, Lim Siew Hoon, Linus Svensson, Lubosz Sarnecki, Luis de Bethencourt,
|
||||
Lukasz Forynski, Manasa Athreya, Marcel Holtmann, Marcin Kolny, Marcus Prebble,
|
||||
Mark Nauwelaerts, Maroš Ondrášek, Martin Kelly, Matej Knopp, Mathias Hasselmann,
|
||||
Mathieu Duponchelle, Matt Crane, Matthew Marsh, Matthew Waters, Matthieu Bouron,
|
||||
Mersad Jelacic, Michael Olbrich, Miguel París Díaz, Mikhail Fludkov,
|
||||
Mischa Spiegelmock, Nicola Murino, Nicolas Dufresne, Nicolas Huet,
|
||||
Nirbheek Chauhan, Ognyan Tonchev, Olivier Crête, Pablo Anton, Pankaj Darak,
|
||||
Paolo Pettinato, Patricia Muscalu, Paul Arzelier, Pavel Bludov, Perry Hung,
|
||||
Peter Korsgaard, Peter Seiderer, Petr Viktorin, Philippe Normand,
|
||||
Philippe Renon, Philipp Zabel, Philip Van Hoof, Philip Withnall, Piotr Drąg,
|
||||
plamot, Polochon\_street, Prashant Gotarne, Rajat Verma, Ramiro Polla,
|
||||
Ravi Kiran K N, Reynaldo H. Verdejo Pinochet, Robert Swain, Romain Picard,
|
||||
Roman Nowicki, Ross Burton, Ryan Hendrickson, Santiago Carot-Nemesio,
|
||||
Scott D Phillips, Sebastian Dröge, Sebastian Rasmussen, Sergey Borovkov,
|
||||
Seungha Yang, Sjors Gielen, Song Bing, Sreerenj Balachandran, Srimanta Panda,
|
||||
Stavros Vagionitis, Stefan Sauer, Steven Hoving, Stian Selnes, Suhwang Kim,
|
||||
Thiago Santos, Thibault Saunier, Thijs Vermeir, Thomas Bluemel, Thomas Roos,
|
||||
Thomas Vander Stichele, Tim-Philipp Müller, Tim Sheridan, Ting-Wei Lan,
|
||||
Tom Deseyn, Vanessa Chipirrás Navalón, Víctor Manuel Jáquez Leal,
|
||||
Vincent Dehors, Vincent Penquerc'h, Vineeth T M, Vivia Nikolaidou,
|
||||
Wang Xin-yu (王昕宇), William Manley, Wim Taymans, Wonchul Lee, Xavi Artigas,
|
||||
Xavier Claessens, Youness Alaoui,
|
||||
|
||||
... and many others who have contributed bug reports, translations, sent
|
||||
suggestions or helped testing.
|
||||
|
||||
## Bugs fixed in 1.8
|
||||
|
||||
More than [~700 bugs][bugs-fixed-in-1.8] have been fixed during
|
||||
the development of 1.8.
|
||||
|
||||
This list does not include issues that have been cherry-picked into the
|
||||
stable 1.6 branch and fixed there as well, all fixes that ended up in the
|
||||
1.6 branch are also included in 1.8.
|
||||
|
||||
This list also does not include issues that have been fixed without a bug
|
||||
report in bugzilla, so the actual number of fixes is much higher.
|
||||
|
||||
[bugs-fixed-in-1.8]: https://bugzilla.gnome.org/buglist.cgi?bug_status=RESOLVED&bug_status=VERIFIED&classification=Platform&limit=0&list_id=107311&order=bug_id&product=GStreamer&query_format=advanced&resolution=FIXED&target_milestone=1.6.1&target_milestone=1.6.2&target_milestone=1.6.3&target_milestone=1.7.0&target_milestone=1.7.1&target_milestone=1.7.2&target_milestone=1.7.3&target_milestone=1.7.4&target_milestone=1.7.90&target_milestone=1.7.91&target_milestone=1.7.92&target_milestone=1.7.x&target_milestone=1.8.0
|
||||
|
||||
## Stable 1.8 branch
|
||||
|
||||
After the 1.8.0 release there will be several 1.8.x bug-fix releases which
|
||||
will contain bug fixes which have been deemed suitable for a stable branch,
|
||||
but no new features or intrusive changes will be added to a bug-fix release
|
||||
usually. The 1.8.x bug-fix releases will be made from the git 1.8 branch, which
|
||||
is a stable branch.
|
||||
|
||||
### 1.8.0
|
||||
|
||||
1.8.0 was released on 24 March 2016.
|
||||
|
||||
### 1.8.1
|
||||
|
||||
The first 1.8 bug-fix release (1.8.1) is planned for April 2016.
|
||||
|
||||
## Schedule for 1.10
|
||||
|
||||
Our next major feature release will be 1.10, and 1.9 will be the unstable
|
||||
development version leading up to the stable 1.10 release. The development
|
||||
of 1.9/1.10 will happen in the git master branch.
|
||||
|
||||
The plan for the 1.10 development cycle is yet to be confirmed, but it is
|
||||
expected that feature freeze will be around late July or early August,
|
||||
followed by several 1.9 pre-releases and the new 1.10 stable release
|
||||
in September.
|
||||
|
||||
1.10 will be backwards-compatible to the stable 1.8, 1.6, 1.4, 1.2 and 1.0
|
||||
release series.
|
||||
|
||||
- - -
|
||||
|
||||
*These release notes have been prepared by Tim-Philipp Müller with
|
||||
contributions from Sebastian Dröge, Nicolas Dufresne, Edward Hervey, Víctor
|
||||
Manuel Jáquez Leal, Arun Raghavan, Thiago Santos, Thibault Saunier, Jan
|
||||
Schmidt and Matthew Waters.*
|
||||
|
||||
*License: [CC BY-SA 4.0](http://creativecommons.org/licenses/by-sa/4.0/)*
|
||||
|
|
|
|||
16
RELEASE
16
RELEASE
|
|
@ -1,14 +1,15 @@
|
|||
|
||||
Release notes for GStreamer Python bindings 1.7.91
|
||||
Release notes for GStreamer Python bindings 1.8.0
|
||||
|
||||
The GStreamer team is pleased to announce the second release candidate of the stable
|
||||
The GStreamer team is pleased to announce the first release of the new stable
|
||||
1.8 release series. The 1.8 release series is adding new features on top of
|
||||
the 1.0, 1.2, 1.4 and 1.6 series and is part of the API and ABI-stable 1.x release
|
||||
series of the GStreamer multimedia framework.
|
||||
the 1.0, 1.2, 1.4 and 1.6 series and is part of the API and ABI-stable 1.x
|
||||
release series of the GStreamer multimedia framework.
|
||||
|
||||
|
||||
Binaries for Android, iOS, Mac OS X and Windows will be provided separately
|
||||
during the stable 1.8 release series.
|
||||
Binaries for Android, iOS, Mac OS X and Windows will be provided shortly after
|
||||
the source release by the GStreamer project during the stable 1.8 release
|
||||
series.
|
||||
|
||||
|
||||
|
||||
|
|
@ -47,8 +48,5 @@ subscribe to the gstreamer-devel list.
|
|||
|
||||
Contributors to this release
|
||||
|
||||
* Hanno Boeck
|
||||
* Sebastian Dröge
|
||||
* Thibault Saunier
|
||||
* Tim-Philipp Müller
|
||||
|
||||
|
|
@ -3,7 +3,7 @@ AC_PREREQ([2.68])
|
|||
dnl initialize autoconf
|
||||
dnl when going to/from release please set the nano (fourth number) right !
|
||||
dnl releases only do Wall, cvs and prerelease does Werror too
|
||||
AC_INIT(GStreamer GObject Introspection overrides for Python , 1.7.91,
|
||||
AC_INIT(GStreamer GObject Introspection overrides for Python , 1.8.0,
|
||||
http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer,
|
||||
gst-python)
|
||||
|
||||
|
|
@ -38,7 +38,7 @@ AC_SUBST(ACLOCAL_AMFLAGS, "-I m4 -I common/m4")
|
|||
|
||||
dnl required versions of other packages
|
||||
dnl Note that they are runtime requirements
|
||||
AC_SUBST(GST_REQ, 1.7.91)
|
||||
AC_SUBST(GST_REQ, 1.8.0)
|
||||
AC_SUBST(PYGOBJECT_REQ, 3.0)
|
||||
|
||||
AC_DISABLE_STATIC
|
||||
|
|
|
|||
|
|
@ -30,6 +30,15 @@ GStreamer Python Bindings is a set of overrides and Gst fundamental types handli
|
|||
</GitRepository>
|
||||
</repository>
|
||||
|
||||
<release>
|
||||
<Version>
|
||||
<revision>1.8.0</revision>
|
||||
<branch>master</branch>
|
||||
<created>2016-03-24</created>
|
||||
<file-release rdf:resource="http://gstreamer.freedesktop.org/src/gst-python/gst-python-1.8.0.tar.xz" />
|
||||
</Version>
|
||||
</release>
|
||||
|
||||
<release>
|
||||
<Version>
|
||||
<revision>1.7.91</revision>
|
||||
|
|
|
|||
Loading…
Reference in a new issue