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@ -1 +1,734 @@
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This is GStreamer 1.11.91.
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# GStreamer 1.12 Release Notes
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GStreamer 1.12.0 was originally released on 4th May 2017.
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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/1.12/][latest] for the latest
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version of this document.
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*Last updated: Thursday 4 May 2017, 11:00 UTC [(log)][gitlog]*
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[latest]: https://gstreamer.freedesktop.org/releases/1.12/
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[gitlog]: https://cgit.freedesktop.org/gstreamer/www/log/src/htdocs/releases/1.12/release-notes-1.12.md
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## Introduction
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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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## Highlights
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- new `msdk` plugin for Intel's Media SDK for hardware-accelerated video
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encoding and decoding on Intel graphics hardware on Windows or Linux.
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- `x264enc` can now use multiple x264 library versions compiled for different
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bit depths at runtime, to transparently provide support for multiple bit
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depths.
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- `videoscale` and `videoconvert` now support multi-threaded scaling and
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conversion, which is particularly useful with higher resolution video.
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- `h264parse` will now automatically insert AU delimiters if needed when
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outputting byte-stream format, which improves standard compliance and
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is needed in particular for HLS playback on iOS/macOS.
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- `rtpbin` has acquired bundle support for incoming streams
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## Major new features and changes
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### Noteworthy new API
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- The video library gained support for a number of new video formats:
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- `GBR_12LE`, `GBR_12BE`, `GBRA_12LE`, `GBRA_12BE` (planar 4:4:4 RGB/RGBA, 12 bits per channel)
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- `GBRA_10LE`, `GBRA_10BE` (planar 4:4:4:4 RGBA, 10 bits per channel)
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- `GBRA` (planar 4:4:4:4 ARGB, 8 bits per channel)
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- `I420_12BE`, `I420_12LE` (planar 4:2:0 YUV, 12 bits per channel)
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- `I422_12BE`,`I422_12LE` (planar 4:2:2 YUV, 12 bits per channel)
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- `Y444_12BE`, `Y444_12LE` (planar 4:4:4 YUV, 12 bits per channel)
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- `VYUY` (another packed 4:2:2 YUV format)
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- The high-level `GstPlayer` API was extended with functions for taking video
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snapshots and enabling accurate seeking. It can optionally also use the
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still-experimental `playbin3` element now.
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### New Elements
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- msdk: new plugin for Intel's Media SDK for hardware-accelerated video encoding
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and decoding on Intel graphics hardware on Windows or Linux. This includes
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an H.264 encoder/decoder (`msdkh264dec`, `msdkh264enc`),
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an H.265 encoder/decoder (`msdkh265dec`, `msdkh265enc`),
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an MJPEG encoder/encoder (`msdkmjpegdec`, `msdkmjpegenc`),
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an MPEG-2 video encoder (`msdkmpeg2enc`) and a VP8 encoder (`msdkvp8enc`).
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- `iqa` is a new Image Quality Assessment plugin based on [DSSIM][dssim],
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similar to the old (unported) videomeasure element.
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- The `faceoverlay` element, which allows you to overlay SVG graphics over
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a detected face in a video stream, has been ported from 0.10.
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- our `ffmpeg` wrapper plugin now exposes/maps the ffmpeg Opus audio decoder
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(`avdec_opus`) as well as the GoPro CineForm HD / CFHD decoder (`avdec_cfhd`),
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and also a parser/writer for the IVF format (`avdemux_ivf` and `avmux_ivf`).
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- `audiobuffersplit` is a new element that splits raw audio buffers into
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equal-sized buffers
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- `audiomixmatrix` is a new element that mixes N:M audio channels according to
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a configured mix matrix.
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- The `timecodewait` element got renamed to `avwait` and can operate in
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different modes now.
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- The `opencv` video processing plugin has gained a new `dewarp` element that
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dewarps fisheye images.
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- `ttml` is a new plugin for parsing and rendering subtitles in Timed Text
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Markup Language (TTML) format. For the time being these elements will not
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be autoplugged during media playback however, unless the `GST_TTML_AUTOPLUG=1`
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environment variable is set. Only the EBU-TT-D profile is supported at this
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point.
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[dssim]: https://github.com/pornel/dssim
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### New element features and additions
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- `x264enc` can now use multiple x264 library versions compiled for different
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bit depths at runtime, to transparently provide support for multiple bit
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depths. A new configure parameter `--with-x264-libraries` has been added to
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specify additional paths to look for additional x264 libraries to load.
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Background is that the libx264 library is always compile for one specific
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bit depth and the `x264enc` element would simply support the depth supported
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by the underlying library. Now we can support multiple depths.
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- `x264enc` also picks up the interlacing mode automatically from the input
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caps now and passed interlacing/TFF information correctly to the library.
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- `videoscale` and `videoconvert` now support multi-threaded scaling and
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conversion, which is particularly useful with higher resolution video.
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This has to be enabled explicitly via the `"n-threads"` property.
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- `videorate`'s new `"rate"` property lets you set a speed factor
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on the output stream
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- `splitmuxsink`'s buffer collection and scheduling was rewritten to make
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processing and splitting deterministic; before it was possible for a buffer
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to end up in a different file chunk in different runs. `splitmuxsink` also
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gained a new `"format-location-full"` signal that works just like the existing
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`"format-location"` signal only that it is also passed the primary stream's
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first buffer as argument, so that it is possible to construct the file name
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based on metadata such as the buffer timestamp or any GstMeta attached to
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the buffer. The new `"max-size-timecode"` property allows for timecode-based
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splitting. `splitmuxsink` will now also automatically start a new file if the
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input caps change in an incompatible way.
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- `fakesink` has a new `"drop-out-of-segment"` property to not drop
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out-of-segment buffers, which is useful for debugging purposes.
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- `identity` gained a `"ts-offset"` property.
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- both `fakesink` and `identity` now also print what kind of metas are attached
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to buffers when printing buffer details via the `"last-message"` property
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used by `gst-launch-1.0 -v`.
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- multiqueue: made `"min-interleave-time"` a configurable property.
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- video nerds will be thrilled to know that `videotestsrc`'s snow is now
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deterministic. `videotestsrc` also gained some new properties to make the
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ball pattern based on system time, and invert colours each second
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(`"animation-mode"`, `"motion"`, and `"flip"` properties).
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- `oggdemux` reverse playback should work again now. You're welcome.
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- `playbin3` and `urisourcebin` now have buffering enabled by default, and
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buffering message aggregation was fixed.
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- `tcpclientsrc` now has a `"timeout"` property
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- `appsink` has gained support for buffer lists. For backwards compatibility
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reasons users need to enable this explicitly with `gst_app_sink_set_buffer_list_support()`,
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however. Once activated, a pulled `GstSample` can contain either a buffer
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list or a single buffer.
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- `splitmuxsrc` reverse playback was fixed and handling of sparse streams, such
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as subtitle tracks or metadata tracks, was improved.
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- `matroskamux` has acquired support for muxing G722 audio; it also marks all
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buffers as keyframes now when streaming only audio, so that `tcpserversink`
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will behave properly with audio-only streams.
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- `qtmux` gained support for ProRes 4444 XQ, HEVC/H.265 and CineForm (GoPro) formats,
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and generally writes more video stream-related metadata into the track headers.
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It is also allows configuration of the maximum interleave size in bytes and
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time now. For fragmented mp4 we always write the `tfdt` atom now as required
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by the DASH spec.
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- `qtdemux` supports FLAC, xvid, mp2, S16L and CineForm (GoPro) tracks now, and
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generally tries harder to extract more video-related information from track
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headers, such as colorimetry or interlacing details. It also received a
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couple of fixes for the scenario where upstream operates in TIME format and
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feeds chunks to qtdemux (e.g. DASH or MSE).
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- `audioecho` has two new properties to apply a delay only to certain channels
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to create a surround effect, rather than an echo on all channels. This is
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useful when upmixing from stereo, for example. The `"surround-delay"` property
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enables this, and the `"surround-mask"` property controls which channels
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are considered surround sound channels in this case.
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- `webrtcdsp` gained various new properties for gain control and also exposes
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voice activity detection now, in which case it will post `"voice-activity"`
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messages on the bus whenever the voice detection status changes.
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- The `decklink` capture elements for Blackmagic Decklink cards have seen a
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number of improvements:
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- `decklinkvideosrc` will post a warning message on "no signal" and an info
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message when the signal lock has been (re)acquired. There is also a new
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read-only `"signal"` property that can be used to query the signal lock
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status. The `GAP` flag will be set on buffers that are captured without
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a signal lock. The new `drop-no-signal-frames` will make `decklinkvideosrc`
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drop all buffers that have been captured without an input signal. The
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`"skip-first-time"` property will make the source drop the first few
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buffers, which is handy since some devices will at first output buffers
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with the wrong resolution before they manage to figure out the right input
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format and decide on the actual output caps.
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- `decklinkaudiosrc` supports more than just 2 audio channels now.
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- The capture sources no longer use the "hardware" timestamps which turn
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out to be useless and instead just use the pipeline clock directly.
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- `srtpdec` now also has a readonly `"stats"` property, just like `srtpenc`.
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- `rtpbin` gained RTP bundle support, as used by e.g. WebRTC. The first
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rtpsession will have a `rtpssrcdemux` element inside splitting the streams
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based on their SSRC and potentially dispatch to a different rtpsession.
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Because retransmission SSRCs need to be merged with the corresponding media
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stream the `::on-bundled-ssrc` signal is emitted on `rtpbin` so that the
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application can find out to which session the SSRC belongs.
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- `rtprtxqueue` gained two new properties exposing retransmission
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statistics (`"requests"` and `"fulfilled-requests"`)
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- `kmssink` will now use the preferred mode for the monitor and render to the
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base plane if nothing else has set a mode yet. This can also be done forcibly
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in any case via the new `"force-modesetting"` property. Furthermore, `kmssink`
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now allows only the supported connector resolutions as input caps in order to
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avoid scaling or positioning of the input stream, as `kmssink` can't know
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whether scaling or positioning would be more appropriate for the use case at
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hand.
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- `waylandsink` can now take DMAbuf buffers as input in the presence
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of a compatible Wayland compositor. This enables zero-copy transfer
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from a decoder or source that outputs DMAbuf.
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- `udpsrc` can be bound to more than one interface when joining a
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multicast group, this is done by giving a comma separate list of
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interfaces such as multicast-iface="eth0,eth1".
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### Plugin moves
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- `dataurisrc` moved from gst-plugins-bad to core
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- The `rawparse` plugin containing the `rawaudioparse` and `rawvideoparse`
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elements moved from gst-plugins-bad to gst-plugins-base. These elements
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supersede the old `videoparse` and `audioparse` elements. They work the
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same, with just some minor API changes. The old legacy elements still
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exist in gst-plugins-bad, but may be removed at some point in the future.
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- `timecodestamper` is an element that attaches time codes to video buffers
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in form of `GstVideoTimeCodeMeta`s. It had a `"clock-source"` property
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which has now been removed because it was fairly useless in practice. It
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gained some new properties however: the `"first-timecode"` property can
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be used to set the inital timecode; alternatively `"first-timecode-to-now"`
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can be set, and then the current system time at the time the first buffer
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arrives is used as base time for the time codes.
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### Plugin removals
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- The `mad` mp1/mp2/mp3 decoder plugin was removed from gst-plugins-ugly,
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as libmad is GPL licensed, has been unmaintained for a very long time, and
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there are better alternatives available. Use the `mpg123audiodec` element
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from the `mpg123` plugin in gst-plugins-ugly instead, or `avdec_mp3` from
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the `gst-libav` module which wraps the ffmpeg library. We expect that we
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will be able to move mp3 decoding to gst-plugins-good in the next cycle
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seeing that most patents around mp3 have expired recently or are about to
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expire.
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- The `mimic` plugin was removed from gst-plugins-bad. It contained a decoder
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and encoder for a video codec used by MSN messenger many many years ago (in
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a galaxy far far away). The underlying library is unmaintained and no one
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really needs to use this codec any more. Recorded videos can still be played
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back with the MIMIC decoder in gst-libav.
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## Miscellaneous API additions
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- Request pad name templates passed to `gst_element_request_pad()` may now
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contain multiple specifiers, such as e.g. `src_%u_%u`.
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- [`gst_buffer_iterate_meta_filtered()`][buffer-iterate-meta-filtered] is a
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variant of `gst_buffer_iterate_meta()` that only returns metas of the
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requested type and skips all other metas.
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- [`gst_pad_task_get_state()`][pad-task-get-state] gets the current state of
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a task in a thread-safe way.
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- [`gst_uri_get_media_fragment_table()`][uri-get-fragment-table] provides the
|
|
|
|
|
media fragments of an URI as a table of key=value pairs.
|
|
|
|
|
|
|
|
|
|
- [`gst_print()`][print], [`gst_println()`][println], [`gst_printerr()`][printerr],
|
|
|
|
|
and [`gst_printerrln()`][printerrln] can be used to print to stdout or stderr.
|
|
|
|
|
These functions are similar to `g_print()` and `g_printerr()` but they also
|
|
|
|
|
support all the additional format specifiers provided by the GStreamer
|
|
|
|
|
logging system, such as e.g. `GST_PTR_FORMAT`.
|
|
|
|
|
|
|
|
|
|
- a `GstParamSpecArray` has been added, for elements who want to have array
|
|
|
|
|
type properties, such as the `audiomixmatrix` element for example. There are
|
|
|
|
|
also two new functions to set and get properties of this type from bindings:
|
|
|
|
|
- gst_util_set_object_array()
|
|
|
|
|
- gst_util_get_object_array()
|
|
|
|
|
|
|
|
|
|
- various helper functions have been added to make it easier to set or get
|
|
|
|
|
GstStructure fields containing caps-style array or list fields from language
|
|
|
|
|
bindings (which usually support GValueArray but don't know about the GStreamer
|
|
|
|
|
specific fundamental types):
|
|
|
|
|
- [`gst_structure_get_array()`][get-array]
|
|
|
|
|
- [`gst_structure_set_array()`][set-array]
|
|
|
|
|
- [`gst_structure_get_list()`][get-list]
|
|
|
|
|
- [`gst_structure_set_list()`][set-list]
|
|
|
|
|
|
|
|
|
|
- a new ['dynamic type' registry factory type][dynamic-type] was added to
|
|
|
|
|
register dynamically loadable GType types. This is useful for automatically
|
|
|
|
|
loading enum/flags types that are used in caps, such as for example the
|
|
|
|
|
`GstVideoMultiviewFlagsSet` type used in multiview video caps.
|
|
|
|
|
|
|
|
|
|
- there is a new [`GstProxyControlBinding`][proxy-control-binding] for use
|
|
|
|
|
with GstController. This allows proxying the control interface from one
|
|
|
|
|
property on one GstObject to another property (of the same type) in another
|
|
|
|
|
GstObject. So e.g. in parent-child relationship, one may need to call
|
|
|
|
|
`gst_object_sync_values()` on the child and have a binding (set elsewhere)
|
|
|
|
|
on the parent update the value. This is used in `glvideomixer` and `glsinkbin`
|
|
|
|
|
for example, where `sync_values()` on the child pad or element will call
|
|
|
|
|
`sync_values()` on the exposed bin pad or element.
|
|
|
|
|
|
|
|
|
|
Note that this doesn't solve GObject property forwarding, that must
|
|
|
|
|
be taken care of by the implementation manually or using GBinding.
|
|
|
|
|
|
|
|
|
|
- `gst_base_parse_drain()` has been made public for subclasses to use.
|
|
|
|
|
|
|
|
|
|
- `gst_base_sink_set_drop_out_of_segment()' can be used by subclasses to
|
|
|
|
|
prevent GstBaseSink from dropping buffers that fall outside of the segment.
|
|
|
|
|
|
|
|
|
|
- [`gst_calculate_linear_regression()`][calc-lin-regression] is a new utility
|
|
|
|
|
function to calculate a linear regression.
|
|
|
|
|
|
|
|
|
|
- [`gst_debug_get_stack_trace`][get-stack-trace] is an easy way to retrieve a
|
|
|
|
|
stack trace, which can be useful in tracer plugins.
|
|
|
|
|
|
|
|
|
|
- allocators: the dmabuf allocator is now sub-classable, and there is a new
|
|
|
|
|
`GST_CAPS_FEATURE_MEMORY_DMABUF` define.
|
|
|
|
|
|
|
|
|
|
- video decoder subclasses can use the newly-added function
|
|
|
|
|
`gst_video_decoder_allocate_output_frame_with_params()` to
|
|
|
|
|
pass a `GstBufferPoolAcquireParams` to the buffer pool for
|
|
|
|
|
each buffer allocation.
|
|
|
|
|
|
|
|
|
|
- the video time code API has gained a dedicated [`GstVideoTimeCodeInterval`][timecode-interval]
|
|
|
|
|
type plus related API, including functions to add intervals to timecodes.
|
|
|
|
|
|
|
|
|
|
- There is a new `libgstbadallocators-1.0` library in gst-plugins-bad, which
|
|
|
|
|
may go away again in future releases once the `GstPhysMemoryAllocator`
|
|
|
|
|
interface API has been validated by more users and was moved to
|
|
|
|
|
`libgstallocators-1.0` from gst-plugins-base.
|
|
|
|
|
|
|
|
|
|
[timecode-interval]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideo.html#gst-video-time-code-interval-new
|
|
|
|
|
[buffer-iterate-meta-filtered]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html#gst-buffer-iterate-meta-filtered
|
|
|
|
|
[pad-task-get-state]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#gst-pad-task-get-state
|
|
|
|
|
[uri-get-fragment-table]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstUri.html#gst-uri-get-media-fragment-table
|
|
|
|
|
[print]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstInfo.html#gst-print
|
|
|
|
|
[println]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstInfo.html#gst-println
|
|
|
|
|
[printerr]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstInfo.html#gst-printerr
|
|
|
|
|
[printerrln]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstInfo.html#gst-printerrln
|
|
|
|
|
[get-array]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstStructure.html#gst-structure-get-array
|
|
|
|
|
[set-array]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstStructure.html#gst-structure-set-array
|
|
|
|
|
[get-list]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstStructure.html#gst-structure-get-list
|
|
|
|
|
[set-list]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstStructure.html#gst-structure-set-list
|
|
|
|
|
[dynamic-type]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstDynamicTypeFactory.html
|
|
|
|
|
[proxy-control-binding]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/gstreamer-libs-GstProxyControlBinding.html
|
|
|
|
|
[calc-lin-regression]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstUtils.html#gst-calculate-linear-regression
|
|
|
|
|
[get-stack-trace]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstUtils.html#gst-debug-get-stack-trace
|
|
|
|
|
|
|
|
|
|
### GstPlayer
|
|
|
|
|
|
|
|
|
|
New API has been added to:
|
|
|
|
|
|
|
|
|
|
- get the number of audio/video/subtitle streams:
|
|
|
|
|
- `gst_player_media_info_get_number_of_streams()`
|
|
|
|
|
- `gst_player_media_info_get_number_of_video_streams()`
|
|
|
|
|
- `gst_player_media_info_get_number_of_audio_streams()`
|
|
|
|
|
- `gst_player_media_info_get_number_of_subtitle_streams()`
|
|
|
|
|
|
|
|
|
|
- enable accurate seeking: `gst_player_config_set_seek_accurate()`
|
|
|
|
|
and `gst_player_config_get_seek_accurate()`
|
|
|
|
|
|
|
|
|
|
- get a snapshot image of the video in RGBx, BGRx, JPEG, PNG or
|
|
|
|
|
native format: [`gst_player_get_video_snapshot()`][snapshot]
|
|
|
|
|
|
|
|
|
|
- selecting use of a specific video sink element
|
|
|
|
|
([`gst_player_video_overlay_video_renderer_new_with_sink()`][renderer-with-vsink])
|
|
|
|
|
|
|
|
|
|
- If the environment variable `GST_PLAYER_USE_PLAYBIN3` is set, GstPlayer will
|
|
|
|
|
use the still-experimental `playbin3` element and the `GstStreams` API for
|
|
|
|
|
playback.
|
|
|
|
|
|
|
|
|
|
[snapshot]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad-libs/html/gst-plugins-bad-libs-gstplayer.html#gst-player-get-video-snapshot
|
|
|
|
|
[renderer-with-vsink]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad-libs/html/gst-plugins-bad-libs-gstplayer-videooverlayvideorenderer.html#gst-player-video-overlay-video-renderer-new-with-sink
|
|
|
|
|
|
|
|
|
|
## Miscellaneous changes
|
|
|
|
|
|
|
|
|
|
- video caps for interlaced video may contain an optional `"field-order"` field
|
|
|
|
|
now in the case of `interlaced-mode=interleaved` to signal that the field
|
|
|
|
|
order is always the same throughout the stream. This is useful to signal to
|
|
|
|
|
muxers such as mp4mux. The new field is parsed from/to `GstVideoInfo` of course.
|
|
|
|
|
|
|
|
|
|
- video decoder and video encoder base classes try harder to proxy
|
|
|
|
|
interlacing, colorimetry and chroma-site related fields in caps properly.
|
|
|
|
|
|
|
|
|
|
- The buffer stored in the `PROTECTION` events is now left unchanged. This is a
|
|
|
|
|
change of behaviour since 1.8, especially for the mssdemux element which used to
|
|
|
|
|
decode the base64 parsed data wrapped in the protection events emitted by the
|
|
|
|
|
demuxer.
|
|
|
|
|
|
|
|
|
|
- `PROTECTION` events can now be injected into the pipeline from the application;
|
|
|
|
|
source elements deriving from GstBaseSrc will forward those downstream now.
|
|
|
|
|
|
|
|
|
|
- The DASH demuxer is now correctly parsing the MSPR-2.0 ContentProtection nodes
|
|
|
|
|
and emits Protection events accordingly. Applications relying on those events
|
|
|
|
|
might need to decode the base64 data stored in the event buffer before using it.
|
|
|
|
|
|
|
|
|
|
- The registry can now also be disabled by setting the environment variable
|
|
|
|
|
`GST_REGISTRY_DISABLE=yes`, with similar effect as the `GST_DISABLE_REGISTRY`
|
|
|
|
|
compile time switch.
|
|
|
|
|
|
|
|
|
|
- Seeking performance with gstreamer-vaapi based decoders was improved. It would
|
|
|
|
|
recreate the decoder and surfaces on every seek which can be quite slow.
|
|
|
|
|
|
|
|
|
|
- more robust handling of input caps changes in videoaggregator-based elements
|
|
|
|
|
such as `compositor`.
|
|
|
|
|
|
|
|
|
|
- Lots of adaptive streaming-related fixes across the board (DASH, MSS, HLS). Also:
|
|
|
|
|
|
|
|
|
|
- `mssdemux`, the Microsoft Smooth Streaming demuxer, has seen various
|
|
|
|
|
fixes for live streams, duration reporting and seeking.
|
|
|
|
|
|
|
|
|
|
- The DASH manifest parser now extracts MS PlayReady ContentProtection objects
|
|
|
|
|
from manifests and sends them downstream as `PROTECTION` events. It also
|
|
|
|
|
supports multiple Period elements in external xml now.
|
|
|
|
|
|
|
|
|
|
- gst-libav was updated to ffmpeg 3.3 but should still work with any 3.x
|
|
|
|
|
version.
|
|
|
|
|
|
|
|
|
|
- GstEncodingProfile has been generally enhanced so it can, for
|
|
|
|
|
example, be used to get possible profiles for a given file
|
|
|
|
|
extension. It is now possible to define profiles based on element
|
|
|
|
|
factory names or using a path to a `.gep` file containing a
|
|
|
|
|
serialized profile.
|
|
|
|
|
|
|
|
|
|
- `audioconvert` can now do endianness conversion in-place. All other
|
|
|
|
|
conversions still require a copy, but e.g. sign conversion and a few others
|
|
|
|
|
could also be implemented in-place now.
|
|
|
|
|
|
|
|
|
|
- The new, experimental `playbin3` and `urisourcebin` elements got many
|
|
|
|
|
bugfixes and improvements and should generally be closer to a full
|
|
|
|
|
replacement of the old elements.
|
|
|
|
|
|
|
|
|
|
- `interleave` now supports > 64 channels.
|
|
|
|
|
|
|
|
|
|
### OpenGL integration
|
|
|
|
|
|
|
|
|
|
- As usual the GStreamer OpenGL integration library has seen numerous
|
|
|
|
|
fixes and performance improvements all over the place, and is hopefully
|
|
|
|
|
ready now to become API stable and be moved to gst-plugins-base during the
|
|
|
|
|
1.14 release cycle.
|
|
|
|
|
|
|
|
|
|
- The GStreamer OpenGL integration layer has also gained support for the
|
|
|
|
|
Vivante EGL FB windowing system, which improves performance on platforms
|
|
|
|
|
such as Freescale iMX.6 for those who are stuck with the proprietary driver.
|
|
|
|
|
The `qmlglsink` element also supports this now if Qt is used with eglfs or
|
|
|
|
|
wayland backend, and it works in conjunction with [gstreamer-imx][gstreamer-imx]
|
|
|
|
|
of course.
|
|
|
|
|
|
|
|
|
|
- various `qmlglsrc` improvements
|
|
|
|
|
|
|
|
|
|
[gstreamer-imx]: https://github.com/Freescale/gstreamer-imx
|
|
|
|
|
|
|
|
|
|
## Tracing framework and debugging improvements
|
|
|
|
|
|
|
|
|
|
- New tracing hooks have been added to track GstMiniObject and GstObject
|
|
|
|
|
ref/unref operations.
|
|
|
|
|
|
|
|
|
|
- The memory leaks tracer can optionally use this to retrieve stack traces if
|
|
|
|
|
enabled with e.g. `GST_TRACERS=leaks(filters="GstEvent,GstMessage",stack-traces-flags=full)`
|
|
|
|
|
|
|
|
|
|
- The `GST_DEBUG_FILE` environment variable, which can be used to write the
|
|
|
|
|
debug log output to a file instead of printing it to stderr, can now contain
|
|
|
|
|
a name pattern, which is useful for automated testing and continuous
|
|
|
|
|
integration systems. The following format specifiers are supported:
|
|
|
|
|
|
|
|
|
|
- `%p`: will be replaced with the PID
|
|
|
|
|
- `%r`: will be replaced with a random number, which is useful for instance
|
|
|
|
|
when running two processes with the same PID but in different containers.
|
|
|
|
|
|
|
|
|
|
## Tools
|
|
|
|
|
|
|
|
|
|
- `gst-inspect-1.0` can now list elements by type with the new `--types`
|
|
|
|
|
command-line option, e.g. `gst-inspect-1.0 --types=Audio/Encoder` will
|
|
|
|
|
show a list of audio encoders.
|
|
|
|
|
|
|
|
|
|
- `gst-launch-1.0` and `gst_parse_launch()` have gained a new operator (`:`)
|
|
|
|
|
that allows linking all pads between two elements. This is useful in cases
|
|
|
|
|
where the exact number of pads or type of pads is not known beforehand, such
|
|
|
|
|
as in the `uridecodebin : encodebin` scenario, for example. In this case,
|
|
|
|
|
multiple links will be created if the encodebin has multiple profiles
|
|
|
|
|
compatible with the output of uridecodebin.
|
|
|
|
|
|
|
|
|
|
- `gst-device-monitor-1.0` now shows a `gst-launch-1.0` snippet for each
|
|
|
|
|
device that shows how to make use of it in a `gst-launch-1.0` pipeline string.
|
|
|
|
|
|
|
|
|
|
## GStreamer RTSP server
|
|
|
|
|
|
|
|
|
|
- The RTSP server now also supports Digest authentication in addition to Basic
|
|
|
|
|
authentication.
|
|
|
|
|
|
|
|
|
|
- The `GstRTSPClient` class has gained a `pre-*-request` signal and virtual
|
|
|
|
|
method for each client request type, emitted in the beginning of each rtsp
|
|
|
|
|
request. These signals or virtual methods let the application validate the
|
|
|
|
|
requests, configure the media/stream in a certain way and also generate error
|
|
|
|
|
status codes in case of an error or a bad request.
|
|
|
|
|
|
|
|
|
|
## GStreamer VAAPI
|
|
|
|
|
|
|
|
|
|
- GstVaapiDisplay now inherits from GstObject, thus the VA display logging
|
|
|
|
|
messages are better and tracing the context sharing is more readable.
|
|
|
|
|
|
|
|
|
|
- When uploading raw images into a VA surfaces now VADeriveImages are tried
|
|
|
|
|
fist, improving the upload performance, if it is possible.
|
|
|
|
|
|
|
|
|
|
- The decoders and the post-processor now can push dmabuf-based buffers to
|
|
|
|
|
downstream under certain conditions. For example:
|
|
|
|
|
|
|
|
|
|
`GST_GL_PLATFORM=egl gst-play-1.0 video-sample.mkv --videosink=glimagesink`
|
|
|
|
|
|
|
|
|
|
- Refactored the wrapping of VA surface into gstreamer memory, adding lock
|
|
|
|
|
when mapping and unmapping, and many other fixes.
|
|
|
|
|
|
|
|
|
|
- Now `vaapidecodebin` loads `vaapipostproc` dynamically. It is possible to
|
|
|
|
|
avoid it usage with the environment variable `GST_VAAPI_DISABLE_VPP=1`.
|
|
|
|
|
|
|
|
|
|
- Regarding encoders: they have primary rank again, since they can discover,
|
|
|
|
|
in run-time, the color formats they can use for upstream raw buffers and
|
|
|
|
|
caps renegotiation is now possible. Also the encoders push encoding info
|
|
|
|
|
downstream via tags.
|
|
|
|
|
|
|
|
|
|
- About specific encoders: added constant bit-rate encoding mode for VP8 and
|
|
|
|
|
H265 encoder handles P010_10LE color format.
|
|
|
|
|
|
|
|
|
|
- Regarding decoders, flush operation has been improved, now the internal VA
|
|
|
|
|
encoder is not recreated at each flush. Also there are several improvements
|
|
|
|
|
in the handling of H264 and H265 streams.
|
|
|
|
|
|
|
|
|
|
- VAAPI plugins try to create their on GstGL context (when available) if they
|
|
|
|
|
cannot find it in the pipeline, to figure out what type of VA Display they
|
|
|
|
|
should create.
|
|
|
|
|
|
|
|
|
|
- Regarding `vaapisink` for X11, if the backend reports that it is unable to
|
|
|
|
|
render correctly the current color format, an internal VA post-processor, is
|
|
|
|
|
instantiated (if available) and converts the color format.
|
|
|
|
|
|
|
|
|
|
## GStreamer Editing Services and NLE
|
|
|
|
|
|
|
|
|
|
- Enhanced auto transition behaviour
|
|
|
|
|
|
|
|
|
|
- Fix some races in `nlecomposition`
|
|
|
|
|
|
|
|
|
|
- Allow building with msvc
|
|
|
|
|
|
|
|
|
|
- Added a UNIX manpage for `ges-launch`
|
|
|
|
|
|
|
|
|
|
- API changes:
|
|
|
|
|
- Added ges_deinit (allowing the leak tracer to work properly)
|
|
|
|
|
- Added ges_layer_get_clips_in_interval
|
|
|
|
|
- Finally hide internal symbols that should never have been exposed
|
|
|
|
|
|
|
|
|
|
## GStreamer validate
|
|
|
|
|
|
|
|
|
|
- Port `gst-validate-launcher` to python 3
|
|
|
|
|
|
|
|
|
|
- `gst-validate-launcher` now checks if blacklisted bugs have been fixed on
|
|
|
|
|
bugzilla and errors out if it is the case
|
|
|
|
|
|
|
|
|
|
- Allow building with msvc
|
|
|
|
|
|
|
|
|
|
- Add ability for the launcher to run GStreamer unit tests
|
|
|
|
|
|
|
|
|
|
- Added a way to activate the leaks tracer on our tests and fix leaks
|
|
|
|
|
|
|
|
|
|
- Make the http server multithreaded
|
|
|
|
|
|
|
|
|
|
- New testsuite for running various test scenarios on the DASH-IF test vectors
|
|
|
|
|
|
|
|
|
|
## Build and Dependencies
|
|
|
|
|
|
|
|
|
|
- Meson build files are now disted in tarballs, for jhbuild and so distro
|
|
|
|
|
packagers can start using it. Note that the Meson-based build system is not
|
|
|
|
|
100% feature-equivalent with the autotools-based one yet.
|
|
|
|
|
|
|
|
|
|
- Some plugin filenames have been changed to match the plugin names: for example
|
|
|
|
|
the file name of the `encoding` plugin in gst-plugins-base containing the
|
|
|
|
|
`encodebin` element was `libgstencodebin.so` and has been changed to
|
|
|
|
|
`libgstencodebin.so`. This affects only a handful of plugins across modules.
|
|
|
|
|
|
|
|
|
|
**Developers who install GStreamer from source and just do `make install`**
|
|
|
|
|
**after updating the source code, without doing `make uninstall` first, will**
|
|
|
|
|
**have to manually remove the old installed plugin files from the installation**
|
|
|
|
|
**prefix, or they will get 'Cannot register existing type' critical warnings.**
|
|
|
|
|
|
|
|
|
|
- Most of the docbook-based documentation (FAQ, Application Development Manual,
|
|
|
|
|
Plugin Writer's Guide, design documents) has been converted to markdown and
|
|
|
|
|
moved into a new gst-docs module. The gtk-doc library API references and
|
|
|
|
|
the plugins documentation are still built as part of the source modules though.
|
|
|
|
|
|
|
|
|
|
- GStreamer core now optionally uses libunwind and libdw to generate backtraces.
|
|
|
|
|
This is useful for tracer plugins used during debugging and development.
|
|
|
|
|
|
|
|
|
|
- There is a new `libgstbadallocators-1.0` library in gst-plugins-bad (which
|
|
|
|
|
may go away again in future releases once the `GstPhysMemoryAllocator`
|
|
|
|
|
interface API has been validated by more users).
|
|
|
|
|
|
|
|
|
|
- `gst-omx` and `gstreamer-vaapi` modules can now also be built using the
|
|
|
|
|
Meson build system.
|
|
|
|
|
|
|
|
|
|
- The `qtkitvideosrc` element for macOS was removed. The API is deprecated
|
|
|
|
|
since 10.9 and it wasn't shipped in the binaries since a few releases.
|
|
|
|
|
|
|
|
|
|
## Platform-specific improvements
|
|
|
|
|
|
|
|
|
|
### Android
|
|
|
|
|
|
|
|
|
|
- androidmedia: add support for VP9 video decoding/encoding and Opus audio
|
|
|
|
|
decoding (where supported)
|
|
|
|
|
|
|
|
|
|
### OS/X and iOS
|
|
|
|
|
|
|
|
|
|
- `avfvideosrc`, which represents an iPhone camera or, on a Mac, a screencapture
|
|
|
|
|
session, so far allowed you to select an input device by device index only.
|
|
|
|
|
New API adds the ability to select the position (front or back facing) and
|
|
|
|
|
device-type (wide angle, telephoto, etc.). Furthermore, you can now also
|
|
|
|
|
specify the orientation (portrait, landscape, etc.) of the videostream.
|
|
|
|
|
|
|
|
|
|
### Windows
|
|
|
|
|
|
|
|
|
|
- `dx9screencapsrc` can now optionally also capture the cursor.
|
|
|
|
|
|
|
|
|
|
## Contributors
|
|
|
|
|
|
|
|
|
|
Aleix Conchillo Flaque, Alejandro G. Castro, Aleksandr Slobodeniuk, Alexandru
|
|
|
|
|
Băluț, Alex Ashley, Andre McCurdy, Andrew, Anton Eliasson, Antonio Ospite,
|
|
|
|
|
Arnaud Vrac, Arun Raghavan, Aurélien Zanelli, Axel Menzel, Benjamin Otte,
|
|
|
|
|
Branko Subasic, Brendan Shanks, Carl Karsten, Carlos Rafael Giani, ChangBok
|
|
|
|
|
Chae, Chris Bass, Christian Schaller, christophecvr, Claudio Saavedra,
|
|
|
|
|
Corentin Noël, Dag Gullberg, Daniel Garbanzo, Daniel Shahaf, David Evans,
|
|
|
|
|
David Schleef, David Warman, Dominique Leuenberger, Dongil Park, Douglas
|
|
|
|
|
Bagnall, Edgard Lima, Edward Hervey, Emeric Grange, Enrico Jorns, Enrique
|
|
|
|
|
Ocaña González, Evan Nemerson, Fabian Orccon, Fabien Dessenne, Fabrice Bellet,
|
|
|
|
|
Florent Thiéry, Florian Zwoch, Francisco Velazquez, Frédéric Dalleau, Garima
|
|
|
|
|
Gaur, Gaurav Gupta, George Kiagiadakis, Georg Lippitsch, Göran Jönsson, Graham
|
|
|
|
|
Leggett, Guillaume Desmottes, Gurkirpal Singh, Haihua Hu, Hanno Boeck, Havard
|
|
|
|
|
Graff, Heekyoung Seo, hoonhee.lee, Hyunjun Ko, Imre Eörs, Iñaki García
|
|
|
|
|
Etxebarria, Jagadish, Jagyum Koo, Jan Alexander Steffens (heftig), Jan
|
|
|
|
|
Schmidt, Jean-Christophe Trotin, Jochen Henneberg, Jonas Holmberg, Joris
|
|
|
|
|
Valette, Josep Torra, Juan Pablo Ugarte, Julien Isorce, Jürgen Sachs, Koop
|
|
|
|
|
Mast, Kseniia Vasilchuk, Lars Wendler, leigh123linux@googlemail.com, Luis de
|
|
|
|
|
Bethencourt, Lyon Wang, Marcin Kolny, Marinus Schraal, Mark Nauwelaerts,
|
|
|
|
|
Mathieu Duponchelle, Matthew Waters, Matt Staples, Michael Dutka, Michael
|
|
|
|
|
Olbrich, Michael Smith, Michael Tretter, Miguel París Díaz, namanyadav12, Neha
|
|
|
|
|
Arora, Nick Kallen, Nicola Murino, Nicolas Dechesne, Nicolas Dufresne, Nicolas
|
|
|
|
|
Huet, Nirbheek Chauhan, Ole André Vadla Ravnås, Olivier Crête, Patricia
|
|
|
|
|
Muscalu, Peter Korsgaard, Peter Seiderer, Petr Kulhavy, Philippe Normand,
|
|
|
|
|
Philippe Renon, Philipp Zabel, Rahul Bedarkar, Reynaldo H. Verdejo Pinochet,
|
|
|
|
|
Ricardo Ribalda Delgado, Rico Tzschichholz, Руслан Ижбулатов, Samuel Maroy,
|
|
|
|
|
Santiago Carot-Nemesio, Scott D Phillips, Sean DuBois, Sebastian Dröge, Sergey
|
|
|
|
|
Borovkov, Seungha Yang, shakin chou, Song Bing, Søren Juul, Sreerenj
|
|
|
|
|
Balachandran, Stefan Kost, Stefan Sauer, Stepan Salenikovich, Stian Selnes,
|
|
|
|
|
Stuart Weaver, suhas2go, Thiago Santos, Thibault Saunier, Thomas Bluemel,
|
|
|
|
|
Thomas Petazzoni, Tim-Philipp Müller, Ting-Wei Lan, Tobias Mueller, Todor
|
|
|
|
|
Tomov, Tomasz Zajac, Ulf Olsson, Ursula Maplehurst, Víctor Manuel Jáquez Leal,
|
|
|
|
|
Victor Toso, Vincent Penquerc'h, Vineeth TM, Vinod Kesti, Vitor Massaru Iha,
|
|
|
|
|
Vivia Nikolaidou, WeiChungChang, William Manley, Wim Taymans, Wojciech
|
|
|
|
|
Przybyl, Wonchul Lee, Xavier Claessens, Yasushi SHOJI
|
|
|
|
|
|
|
|
|
|
... and many others who have contributed bug reports, translations, sent
|
|
|
|
|
suggestions or helped testing.
|
|
|
|
|
|
|
|
|
|
## Bugs fixed in 1.12
|
|
|
|
|
|
|
|
|
|
More than [635 bugs][bugs-fixed-in-1.12] have been fixed during
|
|
|
|
|
the development of 1.12.
|
|
|
|
|
|
|
|
|
|
This list does not include issues that have been cherry-picked into the
|
|
|
|
|
stable 1.10 branch and fixed there as well, all fixes that ended up in the
|
|
|
|
|
1.10 branch are also included in 1.12.
|
|
|
|
|
|
|
|
|
|
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-1.12]: https://bugzilla.gnome.org/buglist.cgi?bug_status=RESOLVED&bug_status=VERIFIED&classification=Platform&limit=0&list_id=213265&order=bug_id&product=GStreamer&query_format=advanced&resolution=FIXED&target_milestone=1.10.1&target_milestone=1.10.2&target_milestone=1.10.3&target_milestone=1.10.4&target_milestone=1.11.1&target_milestone=1.11.2&target_milestone=1.11.3&target_milestone=1.11.4&target_milestone=1.11.90&target_milestone=1.11.91&target_milestone=1.12.0
|
|
|
|
|
|
|
|
|
|
## Stable 1.12 branch
|
|
|
|
|
|
|
|
|
|
After the 1.12.0 release there will be several 1.12.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 1.12.x bug-fix releases will be made from the git 1.12 branch, which
|
|
|
|
|
is a stable branch.
|
|
|
|
|
|
|
|
|
|
### 1.12.0
|
|
|
|
|
|
|
|
|
|
1.12.0 was released on 4th May 2017.
|
|
|
|
|
|
|
|
|
|
## Known Issues
|
|
|
|
|
|
|
|
|
|
- The `webrtcdsp` element is currently not shipped as part of the Windows
|
|
|
|
|
binary packages due to a [build system issue][bug-770264].
|
|
|
|
|
|
|
|
|
|
[bug-770264]: https://bugzilla.gnome.org/show_bug.cgi?id=770264
|
|
|
|
|
|
|
|
|
|
## Schedule for 1.14
|
|
|
|
|
|
|
|
|
|
Our next major feature release will be 1.14, and 1.11 will be the unstable
|
|
|
|
|
development version leading up to the stable 1.12 release. The development
|
|
|
|
|
of 1.13/1.14 will happen in the git master branch.
|
|
|
|
|
|
|
|
|
|
The plan for the 1.14 development cycle is yet to be confirmed, but it is
|
|
|
|
|
expected that feature freeze will be around September 2017
|
|
|
|
|
followed by several 1.13 pre-releases and the new 1.14 stable release
|
|
|
|
|
in October.
|
|
|
|
|
|
|
|
|
|
1.14 will be backwards-compatible to the stable 1.12, 1.10, 1.8, 1.6, 1.4,
|
|
|
|
|
1.2 and 1.0 release series.
|
|
|
|
|
|
|
|
|
|
- - -
|
|
|
|
|
|
|
|
|
|
*These release notes have been prepared by Sebastian Dröge, Tim-Philipp Müller
|
|
|
|
|
and Víctor Manuel Jáquez Leal.*
|
|
|
|
|
|
|
|
|
|
*License: [CC BY-SA 4.0](http://creativecommons.org/licenses/by-sa/4.0/)*
|
|
|
|
|
|
Sebastian Dröge