WebVfx v1.1.0 released
Jun 15, 2019
You can download it from GitHub.
MLT continues to maintain and extend the
WebVfx add-on that lets one use HTML
and Qt QML technologies for a video asset or effects. Back in November, 2018 we
released v1.0.0 as it has proven fairly stable and useful in Shotcut for a few
years. Here are the enhancements for v1.1.0:
- Added support for alpha channels in MLT video for input and output.
- Added a transparent property to the MLT filter. When the property is set to 1,
this gives a filter a transparent white canvas for drawing while the MLT video
image is still available through the JavaScript extension. This facilitates
using WebVfx to draw the alpha channel independently of the MLT alpha channel.
- Added support for getting a MLT rectangle property (mlt_rect) as a JavaScript
object with properties: x, y, width, height, and opacity.
v6.16.0 released
May 7, 2019
You can download it from GitHub.
This version is released to facilitate packaging the latest version of Shotcut,
which is using new APIs.
Framework
Added functions to get/set a creation date to a producer:
mlt_producer_get_creation_time()mlt_producer_set_creation_time()Mlt::Producer::set_creation_time()Mlt::Producer::get_creation_time()
Modules
- Fixed dance filter not showing when lower track is transparent.
- Refactored dynamictext filter to use
mlt_producer_get_creation_time().
- Marked frei0r rgsplit0r plugin version < 1.1 as not thread-safe.
- Fixed possible null pointer crash in
mlt_properties_serialise_yaml().
v6.14.0 released
Mar 30, 2019
You can download it from GitHub.
This version is mostly fixes plus a few API additions and filters.
Framework
- Added
mlt_profile_lumas_dir().
- Added
mlt_frame_get_unique_properties().
- Added
mlt_playlist_reorder() and Mlt::Playlist::reorder().
- Added some new convenience constructors to mlt++
Producer(mlt_profile profile, const char *id, const char *service = NULL)Consumer(mlt_profile profile, const char *id , const char *service = NULL)Transition(mlt_profile profile, const char *id, const char *arg = NULL)Filter(mlt_profile profile, const char *id, const char *service = NULL)Tractor(mlt_profile profile, char *id, char *arg = NULL)
- Added
Mlt::Transition::connect(Service&).
- Added unit tests for mlt_playlist.
- Fixed a crash on invalid transition track values in mlt_transition.
- Fixed a deadlock regression in v6.12.0 of mlt_consumer when starting from
a paused state (producer speed=0).
Modules
- The avformat module now requires at least FFmpeg v2.4 or Libav 12.
- Added
mask_start and mask_apply filters to the core module.
- Added
qtext filter to qt module.
- Changed
dynamictext and timer filters to use qtext.
- Fixed number of digits for seconds in
timer filter.
- Added
mlt_image_format property to color producer.
- Improved color accuracy of libswscale RGB->YUV conversion.
- Fixed frei0r producers not working with tractor.
- Fixed
decklink consumer stalling on dropped frames.
- Generate lumas for 16:9, 9:16 (vertical), and square aspect ratios.
- Fixed crash in
qimage when alpha_size is zero.
- Fixed the mlt_consumer channels property not being passed to multi consumer.
- Fixed the
shape filter for full range color and crashes.
- Converted the
shape filter to use mlt_animation.
- Added a
use_mix property to the shape filter.
- Fixed invert=1 and mix=100 gives wrong image in
shape filter.
- Fixed a possible free null pointer in the linsys
sdi consumer.
- Fixed using destroyed temporary object in
qimage.
- Fixed a possible null pointer dereference in the
spot_remover filter.
- Fixed memory leak on
swr_convert() failure in swresample filter.
- Fixed possible null pointer dereference in
affine when not using rect.
- Fixed loading image sequence on Windows in
qimage.
- Fixed some null pointer crashes using Movit
opengl services.
- Fixed
sdl2 consumer crashes during initialization on Linux or BSD.
- Fixed distorted image using
melt_file.
- Fixed
qimage build on Qt version < 5.5.
- Added offset property to the
timer filter.
- Changed the
boxblur hori & vert properties’ minimum to 0.
- Fixed crash in duplicate frame on rotated videos.
- Added automatic scaling and padding to avfilter.
- Fixed field order when encoding progressive as interlace.
- Fixed frei0r plugins to use the number of slices from the
threads property.
- Fixed over compositing with transparent clips in
luma transition.
- Added sliced processing to dissolve-with-alpha using the
threads property.
- Added
createdate keyword to dynamictext filter.
- Fixed possible crash changing
audio_index in avformat producer.
- Fixed small memory leaks in
xml consumer, jackrack, and timewarp producer.
- Fixed compiling opencv module with OpenCV > 3.
Other
- Added vertical video profiles:
- vertical_hd_30
- vertical_hd_60
- Mlt++ now requires C++11 compiler support.
- Added
--disable-windeploy to configure to keep bin & lib folders on Windows.
- Added support for consumer
in & out to melt.
- Fixed color accuracy of
lossless/Ut Video preset and use pix_fmt yuv422p.
- Fixed
lossless/H.264 preset to use crf=0.
- Fixed compiling with mingw32.
- Fixed build with Python 3.
v6.12.0 released
Nov 26, 2018
You can download it from GitHub.
This version has many important fixes plus a few new filters and support for
encoding using VA-API.
Framework
- Changed buffer property to be mutable and adaptive to speed property in
mlt_consumer.
- Changed macOS RELOCATABLE build to use standard app bundle layout:
- lib/mlt -> ../PlugIns/mlt
- lib/frei0r-1 -> ../PlugIns/frei0r-1
- lib/ladspa -> ../PlugIns/ladspa
- share/mlt -> ../Resources/mlt
- share/movit -> ../Resources/movit
- Fixed a_track of transitions matching deleted track in
mlt_tractor_remove_track().
- Fixed multi-thread race crash in mlt_properties_clear().
- Fixed possiblle null pointer crash in mlt_property_get_rect() and
mlt_property_get_time().
- Fixed non-animated strings containing ‘;’ or ‘=’ in mlt_animation_parse().
- Fixed crash in clear_property() with mlt_animation.
Modules
- Added a generic text filter to the plus module.
- Added a timer filter to the plus module.
- Added audio timeout handling to sdl2 consumers.
- Added spot_remove filter to the plus module.
- Added dds, ico, and webp filename extensions for qimage producer.
- Added support for color_range property in avformat consumer:
“pc” or “jpeg” for full range, otherwise limited range.
- Added a window property to the audiowaveform filter.
- Added MM:SS.SS to the timer filter.
- Added query string param “multi” to the xml producer to force using the
multi consumer.
- Improved WebP image support in avformat producer.
- Integrated hwupload filter in avformat consumer if using VAAPI codec.
- Changed count producer to use pango if qtext not available.
- Changed qt moduled to not call XInitThreads()
- Changed color producer to only set alpha on frame if rgb24a requested or
not opaque.
- Changed the xml producer to pass quality and performance parameters to the
multi consumer.
- Fixed sdl2_audio distortion (regression in v6.10.0).
- Fixed dynamictext filter to not error on empty text.
- Fixed dynamictext aliased (regression in v6.10.0).
- Fixed qimage outputs premultiplied if scaled internally.
- Fixed crash in cbrts consumer if running property was never set.
- Fixed rendering edges of some typefaces in qtext producer.
- Fixed qimage fails to load with wrong filename extension.
- Fixed affine dark right and bottom edge artifacts regression in (v6.10.0).
- Fixed support for vp8 and vp9 with alpha channel in avformat producer.
- Fixed interpolation mode selection in qimage producer.
- Fixed crash in qimage with alpha channel.
- Fixed some AAC MP4 files start playing from middle in avformat producer.
- Fixed crash in avfilter if initialization fails.
- Fixed crash in mix when frame rate is very low.
- Fixed crash on missing luma file in composite transition.
- Fixed A/V sync on some files in avformat producer.
- Fixed seeking on audio filter with album art in avformat producer.
- Fixed colorspace conversion in avformat consumer.
Other
- Added more avformat consumer presets:
- alpha/Quicktime Animation
- alpha/vp8
- alpha/vp9
- alpha/Ut Video
- lossless/Ut Video
- Added square video profiles:
- square_1080p_30
- square_1080p_60
- Added support for nodejs to the swig bindings.
- Changed configure script to require opencv module be explicitly enabled.
- Numerous spelling fixes in source code and comments thanks to codespell.
v6.10.0 released
Jul 2, 2018
You can download it from GitHub.
This version fixes bugs and supports serializing animation keyframes with a
specified time format (previously only frame number).
Framework
- Reverted mlt_pool change in v6.8.0 pending further testing.
(USE_MLT_POOL compiler define is now a 0/1 boolean, defaults to 1.)
- Fixed crash regression in v6.8.0 “parsing non-animated string as an animation.”
- Added pointer checks to mlt_animation.
- Changed producer cache size heuristic in mlt_multitrack to be more liberal.
- Fixed handling reserved characters in names for YAML in mlt_properties.
- Added clamping to prevent computing negative in and out points to mlt_producer.
- Added functions to serialize animation with a time format:
- mlt_animation_serialize_cut_tf()
- mlt_animation_serialize_tf()
- mlt_property_get_string_tf()
- mlt_property_get_string_l_tf()
- mlt_properties_get_value_tf()
- Mlt::Properties::get(int, mlt_time_format)
- Mlt::Animation::serialize_cut(mlt_time_format, int, int)
- Added functions to clear a property to mlt_properties:
- mlt_property_clear()
- mlt_properties_clear()
- Mlt::Properties::clear()
Modules
- Fixed enabling sliced pix_fmt conversion in avformat producer.
- Fixed incorrect seek and sync on audio files with discard packets.
- Added support for avcodec_send_frame() API to avformat consumer.
- Fixed compile errors with Libav master.
- Fixed a crash in affine transition.
- Fixed a crash in ladspa filters when consumer frame rate is low (e.g. <= 8).
- Fixed a crash in boxblur filter.
- Added animation support to boxblur hori and vert properties.
- Fixed a crash in movit.convert.
- Fixed incorrect alpha in affine transition blending routine.
- Converted frei0r from deprecated mlt_geometry to mlt_animation API.
- Fixed tilde in text string for pango producer.
- Fixed using more than one channelcopy filter.
- Fixed the mono filter reducing volume level.
- Fixed degraded audio scrubbing in sdl2_audio consumer.
- Converted dynamictext filter to use affine transition for more correct
alpha compositing and sub-pixel positioning.
- Added time format support for animation keyframes to the xml consumer.
- Added animation support to more affine transition properties:
- fix_rotate_x
- fix_rotate_y
- fix_rotate_z
- fix_shear_x
- fix_shear_y
- fix_shear_z
- ox
- oy
- scale_x
- scale_y
- Fixed gaps in text when characters overlap in qtext and kdenlive producers.
- Fixed a crash in pixbuf producer with multiple render threads.
- Converted the oldfilm vignette filter from mlt_geometry to mlt_animation.
Other
- Numerous updates to mlt-xml.dtd.
- Categorized many of the encode presets (using meta.preset.name).
