news 28 Posted September 3, 2012 A huge batch of changes to port to GStreamer 1.0 and camerabin2, in the run up to Cheese 3.6. what is it? =========== Take photos and videos with your webcam, with fun graphical effects what's changed in 3.5.91? ========================= - Post-release version bump to 3.5.91 - Fix another missing stdlib.h include For EXIT_FAILURE. - Bump libtool versioning after GStreamer 1.0 port - Move variable declarations before code in C source This allows compilation to succeed with ‘-Werror=declaration-after-statement’ passed to GCC. - Fix comment about preset locations Update for new location in GStreamer 1.0. https://bugzilla.gnome.org/show_bug.cgi?id=680422 - Update pkg-config dependencies for GStreamer 1.0 https://bugzilla.gnome.org/show_bug.cgi?id=680422 - Fix dependencies for Cheese introspection Update for GStreamer 1.0. https://bugzilla.gnome.org/show_bug.cgi?id=680422 - Add stdlib.h include for EXIT_SUCCESS - Depend on the new clutter-gst version - Update to the new pad template name - Rename ffmpegcolorspace to videoconvert The element was renamed in GStreamer 1.0. - Update raw caps to new format There is no video/x-raw-yuv or -rgb, they are both now video/x-raw with a format field. - Update to GStreamer 1.0 API - Rename camerabin2 to camerabin camerabin2 was renamed to camerabin in GStreamer 1.0. - Depend on gstreamer-1.0 - Do not set filter-caps property on camerabin2 The "filter-caps" property doesn't exist on camerabin2. - Re-add GstCaps variable in CheeseCamera caps variable was removed during rebase, but it is still used. - Fix CheeseCamera recording time reporting Camerabin2 maintains its pipeline clock continuously running, this makes the time reporting for video recording actually report the time since camerabin2 was initialized. This patch fixes it by querying the video filesink for the correct recording time. - Check for camerabin2 instead of camerabin - Encode WebM/VP8 instead of OGG/Theora Create WebM profile and use it with camereabin2. Also use presets for vp8enc. - Stop-capture is asynchronous in camerabin2 Wait for video-done message to signal that capture is over. - Image-done message is posted by camerabin2 Camerabin2 is the element to post the image-done message, not the camera source. - Remove unused variables warnings in CheeseCamera - Split setting of CheeseCamera caps from playing Add new cheese_camera_set_new_caps() method, split from cheese_camera_play(). - Set ClutterTextureVideoSink sync=false Without this the sink will issue a warning: ** (cheese:21655): WARNING **: Internal data flow problem.: gstbasesink.c(3626): gst_base_sink_chain_unlocked (): /GstCameraBin2:camerabin2/GstViewfinderBin:vf-bin/ClutterGstVideoSink:cluttergstvideosink0: Received buffer without a new-segment. Assuming timestamps start from 0. I'm not sure what the implications of this setting are. It might be caused by the clock/time rewriting magic from camerabin2. - Do not switch mode when stopping video recording - Set the video resolution Use the viewfinder-caps property of camerabin2, rather than the set-video-resolution-fps signal of camerabin. - Fix pixbuf-only capture camerabin2 sends the preview-image bus message through the gstwrappercamerabinsrc. In camerabin2 if the location is NULL, it is interpreted as a "don't write in a file just post the buffer as a bus message". - Enable post-preview property when needed When taking a photo to pixbuf, sets post-preview to enable camerabin2 to send the preview message. - Remove camerabin workaround No longer needed with camerabin2. - Convert image-done to a bus message, from a signal Quote from camerabin2's PORTING guide: In camerabin, image-done is a signal, in camerabin2, it is a bus message Signed-off-by: Raluca Elena Podiuc - Use definitions of MODE_IMAGE/VIDEO from camerabin #ifndef GST_USE_UNSTABLE_API #warning "camerabin enums are unstable API and may change in future." #warning "You can define GST_USE_UNSTABLE_API to avoid this warning." #endif - Handle photo/video moved to monitored directories Camerabin2 creates a temporary file, writes data to it and in the end it moves it to the destination path. Without G_FILE_MONITOR_SEND_MOVED to g_file_monitor_directory, moves would be sent as DELETE + CREATE. Unfortunately, we would also get CREATE events when the temporary file was created. We cannot listen for CREATE events as temporary files would be CREATEd and then CHANGEd and the thumb-view creation code would work with bad data. By using G_FILE_MONITOR_SEND_MOVED we get a single event when the file is moved. As the file monitor ignores files with unknown extensions (as is the case for the temporary files created by camerabin2) we could only just append the new file. But because the user might also move a picture/video manually from the Pictures/Webcam or Videos/Webcam directories, removing the old file from the thumb-view keeps it up-to-date with the state of the file system. If camerabin2 switches away from the create-temp+move approach, to the camerabin one (create the destination file directly), we're prepared to handle that code with G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT. - Rename filename and capture-start/stop Quote from camerabin2's PORTING guide: [...] is now called 'location' instead of 'filename' The signals were renamed from capture-start/stop to start/stop-capture as this is the usual naming on actions. - Video filter on camera_source applies to all modes If the effect is applied on camera_source, the effect will be available in viewfinder and image/video capture modes. - Minimal functionality based on camerabin2 These are the minimal changes needed to integrate camerabin2. Support for: - viewfinder (Cheese's main window) - effect previews Porting details: - obviously, the name has changed to camerabin2 - Camerabin2 requires something special from it's "camera-source". We use the "wrappercamerabinsrc" module provided by camerabin2 which creates a "camera-source" suitable for camerabin2 based on a regular video source. - Depend on GTK+ 3.4.4 for GtkIconView changes - Request correct number of thumbview columns Rather then assuming 5000 will be enough, just set the number of columns to the number of thumbnails in the view. Fixes bug 634958 and bug 678446. Signed-off-by: Hans de Goede - Add missing stdlib.h includes For the EXIT_* macro definitions. https://bugzilla.gnome.org/show_bug.cgi?id=682491 - Remove unneeded XOverlay includes https://bugzilla.gnome.org/show_bug.cgi?id=682490 - Ensure width is a multiple of 8, and height of 2 We ask GStreamer to use an YUV format in the pipeline, by setting the camerabin's "filter-caps" to "video/x-raw-yuv", and GStreamer demands of YUV format frames that their width is a multiple of 8, and their height a multiple of 2. Previous to this patch my bttv tvcard lists the following resolutions in Cheese: 924x576 (*) 920x576 640x480 462x288 (*) 460x288 (*) 320x240 231x144 (*) 230x144 (*) 160x120 Where all the ones marked with an asterisk do not work. After this patch the list is: 920x576 640x480 456x288 320x240 224x144 160x120 And all work. Signed-off-by: Hans de Goede - Fix cheese_camera_device_update_format_table loop Some devices report a very small min_width / height down to reporting 0x0 as minimum resolution, which causes an infinite loop in cheese_camera_device_update_format_table(). This patch limits the minimum resultion to 160x120, both to fix the infinite loop issue, and to remove ridiculous resolutions such as 2x2, 5x3, 11x7, 22x15 etc. which are seen in the resolution drop down on some devices. For more details on the infinite loop issue, see: https://bugzilla.redhat.com/show_bug.cgi?id=850505 Signed-off-by: Hans de Goede - Post-release version bump to 3.5.90 - Added/Updated Translations - as, courtesy of Nilamdyuti Goswami - de, courtesy of Tobias Endrigkeit - gl, courtesy of Leandro Regueiro - gu, courtesy of "Last-Translator: \n" - he, courtesy of Yaron Shahrabani - id, courtesy of Dirgita - it, courtesy of Francesco Valente - kn, courtesy of Shankar Prasad - lt, courtesy of Aurimas Černius - mr, courtesy of Sandeep Shedmake - nb, courtesy of Kjartan Maraas - pl, courtesy of Piotr Drąg - pt, courtesy of Duarte Loreto - sr, courtesy of ÃœøрþÑÂûðò ÃÂøúþûøћ - sr ( -at -) latin, courtesy of Miroslav Nikolić - ta, courtesy of Dr.T.Vasudevan - vi, courtesy of Nguyễn Thái Ngá»Âc Duy - zh_HK, courtesy of Chao-Hsiung Liao - zh_TW, courtesy of Chao-Hsiung Liao - Added/Updated Documentation - de, courtesy of Mario Blättermann where can i get it? =================== you can get it by pressing here! http://download.gnome.org/sources/cheese/3.5/ what does it look like? ======================= take a look here! http://projects.gnome.org/cheese/tour where can i find out more? ========================== you can visit the project web site: http://projects.gnome.org/cheese/ -- http://amigadave.com/ _______________________________________________ Share this post Link to post
