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mlt -

Published by ddennedy over 5 years ago

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().

mlt -

Published by ddennedy over 5 years ago

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 producer 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 x264 lossless preset to use crf=0.
Fixed compiling with mingw32.
Fixed build with Python 3.

mlt -

Published by ddennedy almost 6 years ago

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.

mlt -

Published by ddennedy over 6 years ago

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).

mlt -

Published by ddennedy over 6 years ago

Framework

Added support for musl C library.
Added functions for audio channel layouts:
- mlt_channel_layout_name()
- mlt_channel_layout_id()
- mlt_channel_layout_channels()
- mlt_channel_layout_default()
Added channel_layout property to mlt_consumer.
Added mlt_channel_layout enum.
Disabled memory pooling by default and require compile macro USE_MLT_POOL
to re-enable it.
Fixed reliability of keyframed properties serializing properly.
Fixed parsing non-animated string as an animation.
Added more functions to mlt_animation:
- mlt_animation_key_set_type()
- mlt_animation_key_set_frame()
- Mlt::Animation::key_set_type()
- Mlt::Animation::key_set_frame()

Modules

Fixed some crashes in qimage producer especially with alpha channel.
Fixed >2 channel audio output in the SDL consumers.
Fixed >2 channel audio output in the rtaudio consumer on Windows.
Fixed vorbis encoding with FFmpeg v3.4+.
qimage and qtext are now higher priority than gtk2 pixbuf and pango by the
loader producer.
Added support for more channel counts to decklink consumer.
Added swresample filter based on libswresample from FFmpeg. This is now
the preferred channel count normalizing filter used by the loader producer.
Fixed the strange "Undefined constant" and "Unable to parse option value"
log messages in the the avformat consumer.
Fixed GIF and DPX writing in avformat consumer.
Reduced the memory usage of the affine transition and filters.
Fixed a crash in kdenlivetitle producer.
Fixed a crash in the rotoscoping filter.
Fixed frame rate reported in Matroska and WebM files produced by the
avformat consumer.
Added sdl2_audio consumer.
Fixed alpha channel support for more pixel formats in the avformat producer.
Converted the affine transition to use mlt_rect and mlt_animation.
Fixed LADSPA plugins with mono channel audio.

Other

Fixed a melt command line parsing bug when argument supplied to -transition.
Fixed melt with SDL2 on Windows not using stdio and stderr.
Improved speed of the vp9 avformat consumer preset.

mlt -

Published by ddennedy over 6 years ago

This version builds upon the previous release with performance improvements
using the sliced image processing framework. It also improves compatibility
with dependencies (FFmpeg, Qt 5, SDL 2, NDI, OpenCV, libebur128).

Framework

Added a thread pool to mlt_slices:
- mlt_slices_run_normal()
- mlt_slices_run_rr()
- mlt_slices_run_fifo()
- mlt_slices_count_normal()
- mlt_slices_count_rr()
- mlt_slices_count_fifo()
- MLT_SLICES_COUNT environment variable
Added mlt_log_timings_now() to mlt_log.
Added mlt_image_yuv422p16 image format.
Added mlt_image_format_planes() and mlt_image_format_id() to mlt_frame.
Added mlt_service_disconnect_all_producers() and
Mlt::Service::disconnect_all_producers()
Fixed accuracy of mlt_time_format conversions.
Fixed mlt_filter_get_progress() never reaching 1.0.
Fixed divide by zero in mlt_filter_get_progress().

Modules

Added sdl2 module!
Added sum property to mix transition for simple mixing without dynamics.
Added TLD and KCF tracking modes to opencv module.
Added CSV (comma-separated values) simple slideshow to pixbuf producer.
Added jack filter to jackrack module.
Added sliced processing to frei0r.
Added sliced processing to composite transition.
Added sliced processing to avformat producer pixel format conversion.
Added sliced processing to affine transition and filter.
Converted volume and pan filters to floating point.
Added rotate_center property to qtblend transition and filters.
Added meta.media.variable_frame_rate (VFR detection) to avformat producer.
Added support for external libebur128.
Updated internal libebur128 to latest.
Added 10-bit capture to decklink producer.
Added mlt_image_yuv422p16 to fieldorder filter, avcolour_space filter, and
avformat consumer.
Added no_profile property to xml consumer.
Various ndi module fixes and improvements.
Fixed setting color_trc in multi consumer.
Fixed kdenlive title transparency.
Fixed incorrect alpha channel breaking freeze filter with qtblend transition.
Fixed transparency of pixbuf images with qtblend transition.
Fixed some crashes in new qtblend transition.
Fixed building qt module with C++11 for Qt 5.7+.
Fixed reporting accurage length for image sequences in qimage and pixbuf.
Fixed extra audio samples added to end of file in avformat consumer.
Fixed rawvideo export in avformat consumer.
Fixed multi-threading wtih FFmpeg 3.2+ in avformat module.
Fixed JPEG album art in avformat producer.
Removed filter_avresample (dropped by FFmpeg).
Stop flushing audio buffer in decklink consumer.
Fixed field order handling in decklink consumer.
Make composite transition field order aware.
Fixed nesting mlt_tractor with opengl module.
Fixed kdenlive titler crash on resized frame.

Other

Various memory leak fixes.
Fixed opening files with extended chars on Windows (framework and modules).

mlt -

Published by ddennedy almost 8 years ago

This is a hot-fix release for v6.4 that fixes a symbol version declaration problem for the new C++ method Mlt::Profile::is_valid().

mlt -

Published by ddennedy almost 8 years ago

This is both a bugfix and enhancement release:

Framework

Added functions for multi-threaded slice-based image processing:
mlt_slices_init, mlt_slices_close, and mlt_slices_run.
Added Mlt::Profile::is_valid().
Added MLT_DIRLIST_DELIMITER to mlt_types.h.
Renamed mlt++/config.h to mlt++/MltConfig.h.
Fixed mlt_properties_set_lcnumeric() on macOS.
Fixed address of Free Software Foundation in comment headers.

Modules

Added crop_to_fill property to composite transition.
Added sliced_composite property to composite transition.
Added peak and true peak properties to loudness_meter filter.
Added qtblend transition and filter to qt module.
Added ndi (NewTek NDI) module with producer and consumer.
Added opencv module with opencv_tracker filter.
Added line_spacing, strech, wrap_width, and wrap_type properties to
pango producer.
Added oblique value for style property to pango producer.
Added fontmap-reload event to pango producer.
Added support for pkg-config to sdl module.
Added .kra (Krita Image) file name extension to loader.dict.
Improved performance of kdenlivetitle producer.
Improved decklink producer and consumer.
Improved accuracy of seeking on lossy compressed audio in
avformat producer.
Improved mix transition using 32-bit floating point.
Fixed avfilter when image format changes.
Fixed loading relative file name in vidstab filter.
Fixed crash on Windows with avfilter.
Fixed parsing LADSPA_PATH with semi-colon delimiter on Windows.
Fixed parsing FREI0R_PATH with semi-colon delimiter on Windows.
Fixed reading relative path with backslash (Windows) in xml producer.
Fixed loading relative file name for av.file (avfilter).
Fixed loading multiple LADSPA plugins on some systems.
Fixed compile error when not configured with --enable-gpl.
Fixed loading in avfilter.lut3d in locales with comma decimal point.
Fixed a possible crash in resample filter.
Fixed alpha channel in kdenlivetitle producer.
Fixed possible crash in pixbuf and qimage producers.
Fixed count when counting down in count producer.

Other

Moved some avformat presets from lossless to new intermediate folder.
Added a YouTube avformat consumer preset.
Changed metadata.rb metadata publisher to output Markdown.

mlt -

Published by ddennedy about 8 years ago

The major announcement is the introduction of support for libavfilter! This is still a work-in-progress. It is limited to FFmpeg 2.3 and up, and there are a number of filters that are black-listed because they are known to not integrate with MLT, which is not a full libav* environment or simple wrapper for it. There are likey avfilters that are not yet black-listed but might not work because they have not been completely tested. Also, they do not support MLT's keyframable property animation nor its frame-threaded parallelism due to architectural or integration limitations. However, some avfilters are slice-threaded (internal parallelism), and that works. Finally, libavfilter filtergraph syntax is not supported either.

All of the supported libavfilters are exposed as MLT filters beginning with the prefix "avfilter." All of the avfilter parameters are exposed as MLT properties with the "av." prefix to prevent clashes with MLT properties. You can run:

melt -query filters to see the new avfilters, and
melt -query filter=avfilter.rotate, for example, to view generated documentation for an individual filter.

Here is a list of notable fixes and enhancements in this release:

Added support for libavfilter to avformat module.
Added auto-rotate support to avformat producer.
Added animated GIF preset for avformat consumer.
Prevent serializing and deserializing mlt_type property to xml module.
Fixed relative paths for WebVfx "plain:" resources in xml module.
Updated libebur128 to v1.1.0 in plus module.
Added dynamic_loudness filter to plus module.
Added loudness_meter filter to plus module.
Qt 5 fixes for kdenlivetitle producer.
Added gradients and text shadows to kdenlivetitle producer.
Added support for building rtaudio against external build of lib.
Upgraded bundled RtAudio to v4.1.2.
Added status parameters to ladspa producer and filters.
Added 5.1 surround to stereo downmix to audiochannels filter in core module.
Fixed compiling SWIG bindings for Ruby 2.0.

mlt -

Published by ddennedy over 8 years ago

This is a bugfix and minor enhancement release. Note that our release versioning scheme has changed. We were approaching 1.0 but decided to synchronize release version with the C library ABI version, which is currently at v6. Here are some of the notable changes and enhancements:

Framework

Added unit tests for tractor, multitrack, and field.
Deprecate mlt_frame_get_alpha_mask().
Added drop_count readable property to mlt_consumer.
Added mlt_factory_repository().
Added mlt_properties_to_utf8().
Define MIN, MAX, CLAMP in mlt_types.h in not already defined.
Switched to APPLE and _WIN32 defines throughout codebase.

Modules

Added UDP and SMPTE 2022-2 support to cbrts consumer.
Fixed build against latest FFmpeg versions - now requires v1.1 and up.
Added audiospectrum filter to qt module.
Added meta.media.0.codec.rotate property to avformat producer to let apps and other services get the media orientation.
Make the avformat producer handle animated images.
Added style property to dynamictext filter.
Added timewarp producer to core module.
Fixed slowly accumulating A/V sync drift in mix audio transition.
Added width_crop and width_fit properties to pango producer.

Melt

Added -abort option to simply exit without full cleanup.
Fix key-press handling on Windows.

mlt -

Published by ddennedy about 9 years ago

Framework

Added mlt_service_disconnect_producer() and Mlt::Service::disconnect_producer().
Added mlt_multitrack_disconnect() and Mlt::Multitrack::disconnect().
Added mlt_tractor_remove_track() and Mlt::Tractor::remove_track().
Added mlt_service_insert_producer() and Mlt::Service::insert_producer().
Added mlt_multitrack_insert() and Mlt::Multitrack::insert().
Added mlt_tractor_insert_track() and Mlt::Tractor::insert_track().
Added mlt_transition_set_tracks() and Mlt::Transition::set_tracks().
Added Mlt::Properties::get_animation().
Added Mlt::Properties::get_anim().
Added Mlt:Animation class with methods:
- length()
- is_key()
- keyframe_type()
- get_item()
- next_key()
- previous_key()
- set_length()
- remove()
- interpolate()
- serialize_cut()
Added mlt_animation_key_count() and Mlt::Animation::key_count().
Added mlt_animation_key_get() and Mlt::Animation::key_get().