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235 lines
11 KiB
Text
235 lines
11 KiB
Text
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Release notes for GStreamer Base Plug-ins 0.10.30 "Difficult Birth"
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The GStreamer team is proud to announce a new release
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in the 0.10.x stable series of the
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GStreamer Base Plug-ins.
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The 0.10.x series is a stable series targeted at end users.
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It is not API or ABI compatible with the stable 0.8.x series.
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It is, however, parallel installable with the 0.8.x series.
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This module contains a set of reference plugins, base classes for other
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plugins, and helper libraries.
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This module is kept up-to-date together with the core developments. Element
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writers should look at the elements in this module as a reference for
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their development.
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This module contains elements for, among others:
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device plugins: x(v)imagesink, alsa, v4lsrc, cdparanoia
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containers: ogg
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codecs: vorbis, theora
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text: textoverlay, subparse
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sources: audiotestsrc, videotestsrc, gnomevfssrc, giosrc, appsrc
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network: tcp
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typefind functions
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audio processing: audioconvert, adder, audiorate, audioresample, volume
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visualisation: libvisual
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video processing: ffmpegcolorspace
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aggregate elements: uridecodebin, playbin2, decodebin2, decodebin, playbin
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Other modules containing plug-ins are:
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gst-plugins-good
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contains a set of well-supported plug-ins under our preferred license
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gst-plugins-ugly
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contains a set of well-supported plug-ins, but might pose problems for
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distributors
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gst-plugins-bad
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contains a set of less supported plug-ins that haven't passed the
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rigorous quality testing we expect
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Features of this release
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* Use Orc (Optimized Inner Loops Runtime Compiler) for SIMD and
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other optimisations, and remove liboil dependency. The main goal
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for this release was to make the transition from liboil to liborc.
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Performance improvements should not be expected and will be the
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focus of future versions. liborc is an optional dependency for
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the time being, to make it possible to test and develop the very
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latest GStreamer versions on systems that don't have orc yet.
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However, without orc slow unoptimised backup code will be used
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for many performance critical code paths. Distributors are urged
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to package and ship the latest version of liborc and compile
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GStreamer modules with --enable-orc. Please do not distribute
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GStreamer packages that are not orc enabled. More information on
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the orc integration can be found in the docs/design/ directory.
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* basertpaudiopayload: Set duration on buffers; add extra frame for
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non-complete frame lengths
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* riff: add mappings for On2 VP8 and VP6F (On2 VP6 Flash variant)
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* video: Add support for RGB/BGR with 15 and 16 bits, and Y800 and Y16
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* xmp/exif tags: add mappings for new tags (device, geo location, image orientation)
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* adder, audioconvert, audioresample, volume: convert from liboil to orc
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* adder: rework timestamping; only accept seek-types SEEK_NONE and SEEK_SET
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* decodebin2: add "expose-all-streams" property to not expose/decode all streams
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* decodebin2: use accumulator for autoplug-sort
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* ffmpegcolorspace: add YUY2/YVYU to all RGB formats conversions
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* ffmpegcolorspace: fix conversion of packed 4:2:2 YUV to RGB and 8 bit grayscale
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* ffmpegcolorspace: fix Y16 from/to GRAY8 conversion
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* ffmpegcolorspace: fix Y42B from/to YUY2/YVYU/UYVY conversion for odd widths
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* ffmpegcolorspace: Map "Y8 " and "GREY" to "Y800" and add it to the template caps
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* ffmpegcolorspace: negotiation speed-ups
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* oggdemux: implement seeking and duration estimates when operating in push mode (http etc.)
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* oggdemux: parse Skeleton index packets for better seeking in push mode
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* oggdemux: fix granulepos->key granule calculation for Dirac video
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* oggdemux: fix EOS flow aggregation: only EOS when all streams are EOS
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* oggmux: Start a new page for every CMML buffer
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* ogg: Implement Ogg VP8 mapping
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* playbin2: add "av-offset" property to adjust audio/video sync
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* playbin2: add flag for enabling/disabling automatic deinterlacing
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* playbin2: fix race when querying duration right after preroll, by
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forwarding duration query duration during group switch if no cached
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duration exists
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* playbin2: if a text sink is provided, let subtitle parsing be done by
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decodebin2 if required
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* playbin2: set the subtitle encoding on the decodebins again
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* playsink: also expose "convert-frame" action signal and "frame" property in playsink
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* playsink: reconfigure the video chain correctly when switching from a
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subtitle to a non-subtitle file
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* playsink: Don't fail if subtitles are used but only audio is available
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and no visualizations
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* typefinding: add WebM typefinder (was in -good before)
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* typefinding: add IVF and dts typefinders, improve AC-3 and jpeg typefinding
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* typefinding: detect ISO 14496-14 files as video/quicktime not audio/x-m4a
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* uridecodebin: add all qtdemux types to downloadable types
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* uridecodebin: add the 'expose-all-streams' property from decodebin2
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* uridecodebin: Allow video/webm for progressive downloading
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* videorate, videotestsrc: fixate color-matrix, chroma-site and interlaced fields if necessary
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* videoscale: Try to keep DAR when scaling
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* videoscale: Add support for Y444, Y42B and Y41B and more gray formats
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* videoscale: Fix resampling of ARGB scanlines
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* videoscale: Try harder to keep the DAR if possible
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* videoscale: Use passthrough mode if width and height are not changed
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Bugs fixed in this release
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* 621428 : [playbin2] ghostpad with arbitrary getcaps func leads to not working srt subtitles
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* 371108 : videoscale sucks at basic mathematics when it comes to PAR
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* 512740 : unit test failures if compiling against installed core with installed plugins-base also present
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* 605100 : GNOME Goal: Remove deprecated glib symbols
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* 610866 : [playbin2] Don't fail if there are subtitles and audio but no video
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* 614872 : [tag] Add basic exif support
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* 614942 : playbin2: " text-sink " is supposed to handle raw subtitle data?
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* 615783 : reworked timestamping in adder
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* 616396 : [playbin2] might fail a duration query immediately following PAUSED state
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* 616422 : playsink might not handle reconfiguring after a text enabled file correctly
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* 616557 : [videorate] Add support for video/x-raw-gray
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* 617636 : [rtsp] uses unicode characters in date string
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* 617855 : [oggdemux] Fails to play LAC2010 videos
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* 617868 : [decodebin2] Option to not expose/decode all streams
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* 618324 : rtp payloader don't put the duration on their output buffers
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* 618392 : [avi-demux] Gstreamer does not support 1x1 or 1xN avi files
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* 618625 : lock priv mutex in appsrc when setting caps
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* 619090 : [uridecodebin] caps negociation fail
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* 619102 : [PATCH] WebM typefinder
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* 619310 : [videorate] negotiation issue, tries to set unfixed caps on pad
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* 619396 : gstreamer does not seek http streams of Ogg Vorbis and Flac audio files.
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* 620136 : Orc integration
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* 620140 : [gio] report out-of-space errors
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* 620211 : gst-plugins-base gets confused by dual-QT system
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* 620279 : [playsink] expose 'frame' property and move 'convert-frame' action from playbin2
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* 620342 : [baseaudiosink] Allocate and free the clock in state changes
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* 620412 : [video] Incomplete support for 15 and 16 bit RGB and BGR formats
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* 620441 : [video] Add support for Y800 and Y16 formats
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* 620500 : totem won't do progressive download for flv videos
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* 620720 : typefinding: Mark ISO 14496-14 files as video/quicktime
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* 620939 : [oggdemux] No support for Skeleton 4.0 streams
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* 621071 : [playbin2] no playback with fakesink instead of appsink as text-sink
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* 621161 : autoplug-sort default callback is run last - overwrite user supplied callback result
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* 621190 : video sink drops buffers if it's preceded by ffmpegcolorspace, videoscale and a capsfilter
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* 621509 : [xmptag] Uses uninitialized variable
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* 621572 : [videoscale] Adds horizontal green lines in bilinear mode
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* 622696 : ffmpegcolorspace: Speed up caps nego by using simpler caps
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* 622807 : [decodebin2] Doesn't recover properly after an error
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* 622944 : Require automake 1.9 or newer for $(builddir)
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* 623003 : Major problems with calls to gst_util_uint64_scale()
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* 623176 : riff: matroska file with FLV4 FOURCC fails to play
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* 623218 : oggdemux: Handle errors from _get_next_page in _do_seek.
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* 623233 : GstNetBuffer initialization isn't thread safe.
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* 623318 : [playbin2] If source setup fails the old uridecodebin is kept and breaks future playback
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* 623375 : [ffmpegcolorspace] Invalid memory accesses with odd widths/height during subsampling
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* 623384 : [ffmpegcolorspace] Doesn't write last pixel for odd widths in packed 4:2:2 YUV- > RGB conversion
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* 623418 : [ffmpegcolorspace] Fix packed 4:2:2 YUV to 8 bit grayscale conversion for odd widths
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* 623530 : Stripy pattern with videotestsrc ! ffmpegcolorspace ! ximagesink
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* 623583 : regression: DVD playback broken
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* 624266 : [playbin2] Internal uridecodebin are not properly removed in READY= > NULL
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* 547603 : [playbin2] add deinterlacing support
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API changed in this release
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- API additions:
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* GST_VIDEO_FORMAT_v308
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* GST_VIDEO_FORMAT_Y800
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* GST_VIDEO_FORMAT_Y16
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* GST_VIDEO_FORMAT_RGB16
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* GST_VIDEO_FORMAT_BGR16
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* GST_VIDEO_FORMAT_RGB15
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* GST_VIDEO_FORMAT_BGR15
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* gst_tag_image_orientation_to_exif_value ()
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* gst_tag_image_orientation_from_exif_value ()
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* gst_tag_list_to_exif_buffer ()
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* gst_tag_list_to_exif_buffer_with_tiff_header ()
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* gst_tag_list_from_exif_buffer ()
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* gst_tag_list_from_exif_buffer_with_tiff_header ()
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Download
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You can find source releases of gst-plugins-base in the download directory:
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http://gstreamer.freedesktop.org/src/gst-plugins-base/
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GStreamer Homepage
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More details can be found on the project's website:
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http://gstreamer.freedesktop.org/
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Support and Bugs
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We use GNOME's bugzilla for bug reports and feature requests:
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http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer
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Developers
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GStreamer is stored in Git, hosted at git.freedesktop.org, and can be cloned from there.
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Interested developers of the core library, plug-ins, and applications should
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subscribe to the gstreamer-devel list. If there is sufficient interest we
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will create more lists as necessary.
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Applications
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Contributors to this release
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* Alessandro Decina
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* Andoni Morales
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* Arun Raghavan
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* David Schleef
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* Edward Hervey
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* Fredrik Söderquist
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* Jonathan Matthew
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* Joshua M. Doe
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* Mark Nauwelaerts
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* Martin Bisson
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* Olivier Crête
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* Philip Jägenstedt
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* Philippe Normand
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* Prahal
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* Sebastian Dröge
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* Stefan Kost
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* Thiago Santos
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* Tim-Philipp Müller
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* Wim Taymans
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