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authorDavid King <amigadave@amigadave.com>2013-06-17 22:33:15 +0100
committerDavid King <amigadave@amigadave.com>2013-06-17 22:58:16 +0100
commit973368865e7a69a1250ab6f711ffa5493fb51d68 (patch)
treeb2dd233c9d98b9fbace21133ccccf78cc773e5e5 /NEWS
parent039536f75125d038dbb63a9df41d2ca1b37a2997 (diff)
Update NEWS for 3.9.3 release
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ChangeLog for Cheese
--------------------
+version 3.9.3
+ - Add documentation for CheeseCamera signals
+ - Remove unused Cheese.MainWindow.get_data_file_dir
+ - Make the flash background white
+ - Fix assertion failures when taking a photo
+ Before this patch, Cheese would log the following each time the user
+ takes a photo:
+
+ (cheese:21719): GLib-GIO-CRITICAL **: g_file_info_get_size: assertion
+ `G_IS_FILE_INFO (info)' failed
+
+ (cheese:21719): GLib-GObject-CRITICAL **: g_object_unref: assertion
+ `G_IS_OBJECT (object)' failed
+ - Fix updating sensitivity of device selection combo
+ If Cheese was started with 1 device, and then a second was added, the
+ device selection stayed insensitive, making it impossible to select the
+ second device.
+
+ This fixes the problem, and also makes the combo insensitive again when
+ going from >= 2 devices to <= 1 device.
+ - Downscale image for effects-preview pipeline
+ Having the whole effects-preview bin deal with ie 1280x800 images is not
+ very useful, especially since even when fullscreen on a full-HD monitor,
+ the preview images are smaller then 640xXXX. This useless high-res
+ processing for 9 preview images in parallel brings my 2nd gen
+ core i5 @ 3.1 GHz to its knees, resulting in a non fluid preview panel.
+
+ Also after clicking through all effect preview pages, so that all effect
+ preview textures are connected, cheese will use 1 GB of *resident* RAM
+ with the example 1280x800 capture resolution.
+
+ This patch improves this by downscaling the images from the video-source
+ to 640xXXX where XXX is determined by the original resolution
+ aspect-ratio.
+
+ After this patch the effects preview framerate is much smoother, and the
+ latency is noticably less. As a bonus the maximal resident size of
+ Cheese in this example is reduced to 350 MB.
+ - Do not block the main valve while recording
+ Otherwise frames intended for the recording are dropped.
+ - Only add videoconvert elements where necessary
+ The "no effect" effect is our default value, and thus worth optimizing a
+ bit. Clearly in the "no effect" effect case adding a videoconvert
+ element both before and after the element is not needed.
+
+ Note we also don't add the videoconvert elements when creating the
+ initial pipeline, so this also keeps the way the pipeline looks
+ initially and when "no-effect" is selected consistent.
+
+ When starting Cheese with "no-effect" selected, this shaves off another
+ 130 ms of the initial pipeline creation time.
+ - Drop unused preview_caps variable
+ - Simplify returned GstCaps
+ In cheese_camera_device_get_caps_for_format, simplify the returned caps.
+ This results in much simpler caps, which as main advantage that they are
+ way easier to read when trawling to debug logs.
+ - Fix cheese_camera_device_get_best_format memleak
+ cheese_camera_device_get_best_format() calls
+ cheese_camera_device_get_format_list(), which returns a sorted copy of
+ the format lists, then takes the first element of that list, and
+ returns a copy of that element. While never freeing the list copy.
+
+ This patch fixes this leak by simply making the priv->formats list
+ sorted so that cheese_camera_device_get_best_format can use it directly
+ without the need to make (and then later free) a copy.
+ - Fix cheese_camera_device_filter_caps warning
+ - Remove unused GstCameraBinFlags enum
+ - Fix video-source memleak when switching cameras
+ - Improve error handling in CheeseCamera
+ Simplify error cleanup in cheese_camera_set_camera_source(). Do not call
+ g_error_free() on a possible NULL error in
+ cheese_camera_element_from_effect().
+ - Fix no-video-after-switching-resolution problem
+ There is a bug in wrappercamerabinsrc which causes it to lose its
+ video-source setting after the pipeline has started, so on a
+ stop/re-start, as when changing resolution, its video-source has become
+ NULL, and there is no longer video.
+
+ This patch works around this by moving the setting of the video-source
+ property to cheese_camera_play(), so that it gets (re)set each time
+ before starting the pipeline.
+
+ I've also written a patch fixing the underlying cause, but since the
+ workaround is simple, and has no adverse effects when the underlying
+ issue is fixed, it seems a good idea to have this workaround in Cheese,
+ see here for the gst-plugins-bad fix:
+
+ https://bugzilla.gnome.org/show_bug.cgi?id=701915
+ - Remove extranous csp_post_balance element
+ camerabin2 already has a videoconvert element both before and after its
+ video-source-filter element, so ending the video-source-filter bin with
+ a videoconvert element puts 2 videoconvert elements behind each other,
+ which is not really useful.
+ - Add a capsfilter to the video-source bin
+ This serves 2 purposes. Firstly, it forces GStreamer to actually run the
+ video source at the configured resolution, rather then say run it at
+ 1600x1200 @ 5 fps and downscale that to 800x600 (still at 5 fps), as
+ GStreamer opts to do with my Logitech Webcam Pro 9000, when left to its
+ own auto negotiate code. Secondly, by greatly reducing the amount of
+ advertised caps (this cam supports lots of different resolutions at many
+ different framerates per resolution), it avoids a caps intersect
+ "explosion", reducing the pipeline caps negotiation.
+ - Remove nautilus-sendto sharing support
+ As nautilus-sendto can now only share by email, the sharing can be
+ handled by a photo management application, or directy by the email
+ client.
+ - Avoid assert when taking avatar photos too quickly
+ If the take photo button was pressed while a photo was being taken, an
+ assert would be triggered by the failed call to
+ cheese_camera_take_photo_pixbuf(). Avoid this by setting the take photo
+ button insensitive while a photo is being taken, and setting it
+ sensitive after the photo has been taken. Fixes bug 699596.
+ - Post-release bump to 3.9.3
+ - Added/Updated Translations
+ - hu, courtesy of Balázs Úr
+ - ja, courtesy of Noriko Mizumoto
+ - th, courtesy of Akom Chotiphantawanon
+ - zh_CN, courtesy of tuhaihe
+ - Added/Updated Documentation
+ - de, courtesy of Christian Kirbach
+
version 3.9.2
- Make maintainer.sh compliant with POSIX sh
- Post-release bump to 3.9.2