MPlatform SDK 版本發布

MPlatform SDK v2.12.0.14909主要版本2026年8月12日

功能

Common Changes:
- Added: New GPU shader transitions based on gl-transitions.
- Added: LTC reading from a selected embedded audio channel.
- Added: xMedia Converter statistics.
- Added: Effect-specific parameters for GPU mixer transitions.
- Added: Runtime enumeration of GPU transitions and their default parameters.
- Added: Configurable aspect ratio for Unreal Engine xMedia output.
- Added: Independent in/out phases for GPU color-fade playlist transitions.
File Recording and Network Streaming:
- Added: DVB-compatible MPEG-TS streaming over RTP.
- Added: WebVTT subtitle support for HLS streams.
- Added: DVB subtitle generation and insertion into DVB streams.
- Added: Teletext support for EBU Teletext / ETSI EN 300 706 workflows.
- Added: Selective seamless output switching for multi-output writers.
- Added: Subtitle encoder and rasterizer formatting options with automatic canvas sizing.
- Added: Multilingual DVB Teletext encoding, including Cyrillic character sets.
- Added: SCTE-35 detection from HLS playlist tags.
Input/Output Devices:
- Added: ASIO device support as an LTC synchronization source.
- Added: AJA LTC timecode input source option.
Decoding and Seeking:
- Added: video.auto_rotation property for automatic rotation-flag handling in MFile.
- Added: MXF SMPTE RP 188 and SMPTE 385M timecode support.
- Added: Looping for MFile external-audio tracks with continuous timestamps.
Plugins:
- Added: SMPTE 436M CC, V-Chip, and AFD metadata support.
- Added: cc.display_order option to choose CEA-608 processing order from packet-level or decoded-frame data.
- Added: V-Chip/XDS insertion and parsing support.
- Added: HTML5 MLCG editor.
- Updated: CEF to version 147.0.11.
Samples and Documentation:
- Added: MLCG REST control sample for MPlatform workflows.
- Updated: MPlatform MLShader samples with the new shader-library project and shader catalog.
- Updated: Subtitle workflows split into dedicated Conversion and Generation samples.

修正

Common Changes:
- Fixed: Crash when 24-bit audio conversion is used together with audio channel remapping.
- Fixed: MMixer background transitions did not fade audio.
- Fixed: Dropped frames after CG commands during playlist playback.
- Fixed: Duplicated frames in rotate + maintain_ar + gpu_pipeline scenarios.
- Fixed: object::vfilter and object::afilter processing in gpu_pipeline mode.
- Fixed: MDelay custom metadata reading from SBE files.
- Fixed: Text outline rendering on small ARGB frames.
- Fixed: Intermittent mixer audio when sync_mode=false.
- Fixed: Audio distortion during normalization for specific source files.
- Fixed: Frame cloning changing nRowBytes in gpu_pipeline mode.
- Fixed: Mixer output pixel format being reset from HDYC to ARGB by background frames.
- Fixed: Mixer solid-color background scaling after output format changes.
- Fixed: MDelay properties set from code were not applied.
- Fixed: external_process behavior consistency between code and registry configuration.
- Fixed: pixelize video filter processing for ARGB formats.
- Fixed: Audio-normalization properties passed through PlaylistAdd parameters.
- Fixed: Audio noise during MFile normalization.
- Fixed: TrackLoudnessGet results after applying audio normalization to MPlaylist.
- Fixed: Repeated EOF events from finite PNG mixer sources after a GPU transition.
- Fixed: Reusing writer format configuration after AttributesRemoveAll.
- Fixed: FrameConvert color conversion for NV12, RGB8, YV12, and YV16 frames.
- Fixed: MWriter state after ObjectClose following an encoder error.
- Fixed: Excessive GPU load during mixer transitions.
- Fixed: Video flicker after transitions in nested mixer workflows.
- Fixed: Flicker during GPU mixer-stream transitions.
- Fixed: Fast transcoding with rate_control=false in GPU and DX11 preview paths.
- Fixed: MMixer crash while reading mask element attributes.
- Fixed: Unreal Engine xMedia video-callback pacing.
File Recording and Network Streaming:
- Fixed: DVB subtitle packet passthrough after seeking during transwrapping, so subtitle PIDs remain available on receiver outputs.
- Fixed: DVB subtitle side-data loss through MPLink chains.
- Fixed: MWriter MXF timecode gaps when splitting output by max_duration.
- Fixed: MWriter indexed audio PID settings for additional audio streams.
- Fixed: Duplicated AC-3 descriptor in DVB PMT output.
- Fixed: MXF pre-charge metadata loss during transwrapping.
- Fixed: SRT streams with subtitle::codec=packets opening in VLC.
- Fixed: Audio packet passthrough when source stream indices contain gaps.
- Fixed: Timecode metadata in MP4 recordings produced by the NVIDIA encoder.
- Fixed: setsar/setdar filter metadata in MOV and ProRes output.
- Fixed: MXF finalization when MWriter records MMixer output.
- Fixed: DVB subtitle packet timing after skipping initial source frames.
- Fixed: DVB output when one of several external subtitle files is missing.
- Fixed: DVB video continuity when MPlaylist switches to an item with SRT subtitles.
- Fixed: DVB subtitle and Teletext receiver freeze when switching playlist items.
- Fixed: DVB muxing stopping during long MPlaylist output with external subtitles.
- Fixed: messageSize in single-operation SCTE-104 ANC packets.
Input/Output Devices:
- Fixed: DeckLink key/fill processing at frame rates above 30 fps.
- Fixed: DeckLink custom ANC packet reception.
- Fixed: Bluefish Kronos K8 audio loss in key/fill output modes.
- Fixed: Long shutdown time for Blackmagic/DeckLink renderers.
- Fixed: SDI auto-detect reinitialization when a 59.94p signal appears after no-signal startup.
- Fixed: Audio stutter caused by missing BMD no-signal frame timing in live/render pipelines.
- Fixed: NDI color metadata propagation when the source changes.
- Fixed: HDMI DeckLink Mini Recorder 4K initialization crash in gpu_pipeline mode.
- Fixed: Renderer frame-rate drops while seeking converted MPlaylist output.
Decoding and Seeking:
- Fixed: Delay when adding short play-while-recording files to a playlist.
- Fixed: MMixer could stop after repeated switching between MFile sources.
- Fixed: MMixer preview did not refresh after seeking a background MFile.
- Fixed: Delayed application of MPlaylist item scale_type settings.
- Fixed: MPlaylist position increasing during accelerated reverse playback.
- Fixed: Playback-rate changes for mp:// background direct_out sources in MMixer.
- Fixed: start_timecode metadata reading for GXF files.
- Fixed: pause_out behavior during accelerated playback.
- Fixed: mp:// links when FileRateSet exceeds max_forward_rate.
- Fixed: MMixer seeking for interlaced files with gpu_pipeline enabled.
- Fixed: playlist.on_next=pause_out behavior for live playlist items.
- Fixed: Audio stopping after the opening seconds for specific MP4 files in MFile and MPlaylist playback.
- Fixed: Audio loss when an mp:// playlist item's out point exceeded its duration.
- Fixed: Scan-type detection for 10-bit JPEG 2000 files.
- Fixed: Rare MPlaylist deadlock while adding break items.
- Fixed: Timed MPlaylist stop commands in GPU-pipeline mode.
- Fixed: PlaylistPosGet position calculation during accelerated playback.
- Fixed: PlaylistPosGet next-index consistency after command-item removal.
Plugins:
- Fixed: CG overlay color rendering when overlay.thread=0.
- Fixed: CG overlay rendering for interlaced formats when overlay.thread=0.
- Fixed: Extra spacing between adjacent CG text runs in tickers.
- Fixed: CG plugin forcing ARGB32 instead of the configured HDYC format in playlist pipelines.
- Fixed: CEF opening an external browser when HTML overlay is used from two applications at the same time.
- Fixed: CG RSS ticker text width and spacing mismatch.
- Fixed: Display of closed captions written to MXF files.
- Fixed: Generated CEA-608 closed captions in files for VLC playback.
- Fixed: Blurred CG text when decoder.convert_planar=true.
- Fixed: MCCDisplay CEA-608 character ordering for specific files.
- Fixed: CEF HTML plugin and WebCapture page loading on first start after OS boot.
- Fixed: CEF audio mute and preview-control handling.
- Fixed: CEF popup handling that could create an extra preview/window for new tabs.
- Fixed: L-shape resizing with external-process CG and runtime GPU-pipeline activation.
- Fixed: Smooth scheduled appearance for CG items shown with cg-props::show.
- Fixed: CG hang when hiding a ticker containing a non-RSS web page.
- Fixed: Visible MPlaylist preview freeze while an HTML5 overlay loads.

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