Media-Transport-Library

Changelog

Changelog for 25.02

• Add plugins for GStreamer audio video and ancillary data
• Add experimental st40 tx pipeline mode
• Correct the implementation of flow rules in DPDK
• Add Sphinx documentation
• General code improvements and optimizations

Changelog for 24.09

• ice: update driver to 1.14.9
• st2110/20: add force NUMA option support on session level, see ST20_TX_FLAG_FORCE_NUMA/ST20_RX_FLAG_FORCE_NUMA
• st2110/30: add force NUMA option support on session level, see ST30_TX_FLAG_FORCE_NUMA/ST30_RX_FLAG_FORCE_NUMA
• ffmpeg: fix RX side dropping frames at the beginning of the session with st20/st22/st30.
• st22: fix last frame dropping in TX. Ensure that last frame status changed to FREE.
• DPDK: optimizing memory pool size.
• manager: fix docker build.
• ffmpeg: improve unicast initialization, reduce amount of dropping frames in the beginning of the session.
• ixgbe: add driver support. Tested on 10-Gigabit X540-AT2 (1528) and Intel 10G X550T (1563).
• sch/tasklet: fix API correct NUMA assigned when mtl_sch_create is used.
• sch/tasklet: fix segfault when lcore out of RTE_MAX_LCORE assigned.
• app: add new video formats to sample app - YUV_420_16bit, YUV_422_8BIT, YUV_444_8bit, YUV_444_16bit.
• RTP: fix checking for valid payload type.
• st30: add fifo_size parameter parsing from user.
• st41: add St2110-41 format for ‘Fast Metadata Framework’ standard.
• ffmpeg: add support of 44100 rate for st30 format.
• ffmpeg: add support for v7.0 version
• st22: fix correct NUMA assigned socket_id with pipeline when creating a new session.
• GPU: add support for GPU direct buffers in ST2110/20. See app/sample/gpu_direct for usage.
• ffmpeg: add support for GPU buffers.

Changelog for 24.06

• DPDK: upgrade DPDK version to 23.11.
• st22: add interlaced support.
• log: add custom log printer, see mtl_set_log_printer.
• rx/timing_parser: add timing_parser stat report for RX video, --rx_timing_parser in RxTxApp to enable.
• pipeline: add block get mode support, see ST20P_TX_FLAG_BLOCK_GET/ST20P_RX_FLAG_BLOCK_GET/ST22P_TX_FLAG_BLOCK_GET/ST22P_RX_FLAG_BLOCK_GET.
• rx/timing_parser: add support to export the timing_parser to app, see app/sample/rx_st20p_timing_parser_sample.c for usage.
• st40: add interlaced support.
• cvt: add st20_rfc4175_422be10_to_yuv422p8 with avx512
• backend: add XDP based backend, see doc/xdp.md.
• manager: add a daemon server for privileged control management, see manager/README.md.
• backend/xdp: add UDP port filter XDP program for splitting data path traffic.
• ice: update driver to 1.13.7
• rx/timing_parser: add timing_parser for audio, see ST30_RX_FLAG_TIMING_PARSER_STAT and ST30_RX_FLAG_TIMING_PARSER_META
• tools/ebpf: add lcore_monitor to monitor the lcore status for debug usage
• tools/ebpf: add udp_monitor to sniff all UDP streaming on the network
• usdt: add eBPF based User Statically-Defined Tracing (USDT) probes support, see doc/usdt.md
• multicast: add MTL_FLAG_NO_MULTICAST option
• st30p: add get/put support for audio, detail see include/st30_pipeline_api.h
• ffmpeg: add audio plugin support

Changelog for 23.12

• log: add log to file support, see mtl_openlog_stream.
• DPDK: upgrade DPDK version to 23.07.
• virtio_user: add virtio_user support for exception path, deprecate kni.
• st22p/tx: add external frame support, see ST22P_TX_FLAG_EXT_FRAME.
• backend: add kernel socket based backend, see doc/kernel_socket.md.
• DPDK pmd: add AF_PACKET PMD support, see doc/experimental/af_packet.md.
• st22p/rx: add external frame support, see ST22P_RX_FLAG_EXT_FRAME.
• ptp: add user callback for ptp sync message. See ptp_sync_notify in struct mtl_init_params.
• api: add arp timeout parameter support for st2110 unicast address. See arp_timeout_s in struct mtl_init_params.
• st2110/tx: fix RTP passthrough interface support when PMD doesn’t support multi segment mbuf.
• st2110/tx: fix redundant when PMD doesn’t support multi segment mbuf.
• backend/kernel: add multi thread support for both TX and RX.
• convert: add interlace support.
• rtcp: add retransmit packet support for st20 sessions, see STxx_RX_FLAG_ENABLE_RTCP.
• st2110: add ssrc support.
• rss: add multi-core support.
• log: default add time info print, and a API mtl_set_log_prefix_formatter to customize the log prefix formatter.
• lcore: add LcoreMgr tools to manage the inactive lcore status. See doc/lcore.md
• ice: update driver to 1.12.7

Changelog for 23.08

• lib: add DHCP client implementation.
• ice: update driver to 1.11.14
• udp: add LD_PRELOAD to support no-code change deployment, see doc/udp.md
• udp: add select/epoll/send_msg/recvmsg support.
• ecosystem/ffmpeg: add output support.
• rss: add shared mode support, see mt_shared_rss.h
• st/video: add multi_src_port support.
• sample: add hdr split with gpu direct, see app/sample/ext_frame/rx_st20p_hdr_split_gpu_direct.c
• api/ops: add udp_src_port configuration
• build: disable Werror for debug build.
• tx/st30: separate build and pacing stage.
• tx/pacing: add epoch drop/onward stat.
• tx/st2110: add epoch information in stxx_tx_frame_meta for get_next_frame callback.
• DPDK: upgrade DPDK version to latest 23.03
• Windows: add MSYS2 build guide and CI
• vm: add Windows guest OS support, see vm_WIN.md.
• rx/video: add fpt(first packet time to epoch) in struct st20_rx_frame_meta.
• st20p: add interlace format support, refer to tests/script/loop_json/st20p_2v_1080i50.json
• CI: add ossf scorecard support.
• gtest: support run with AWS ena driver.
• dhcp: set proto to dhcp in interfaces segment of JSON to enable DHCP.
• rx/video: support out of sequence for both first and last(marker) packet.
• udp: add gso(general segment offload) for tx
• udp: add reuse port support.
• udp: add fork support
• Windows: add MSVC sample build, refer to app/sample/msvc/imtl_sample.
• audio: improve max density per process to 750 for both tx and rx by shared queue and no_tx_chain.
• ptp: add tsc time source support for VF.
• doc: use vf mode as default for E810 nic.
• tx/st20: improve the pacing profile accuracy.

Changelog for 23.04

• DPDK: upgrade DPDK version to latest 22.11 for both Windows and Linux.
• ptp: add pi controller and software frequency adjust to improve the accuracy to ~100ns.
• mtl_init_params: add gateway and netmask support for wan.
• udp: introduce a highly efficient udp stack support, see mudp_api.h
• udp: add POSIX socket compatible(file descriptor) API support, see mudp_sockfd_api.h
• udp: add sample code, see app/udp
• arp: add zero timeout support for UDP stack.
• mtl_init_params: add multi port support, user can initial MTL instance with up to 8 ports. See tests/script/multi_port_json/ for how to use from RxTxApp.
• sch/tasklet: add runtime unregister support.
• udp: add lcore daemon mode support for rx, see MTL_FLAG_UDP_LCORE.
• dev: add rss mode support for rx queue in case no rte_flow available.
• st2110/rx: add rss queue mode support
• st2110/tx/video: add tx no chain mode support
• st2110/tx/video: enable IOVA PA mode in 2M huge page environment
• sample/pipeline: add SQD split and merge sample
• sample/pipeline: add downscale sample
• sample/pipeline: add 2si-down sample
• CSC: add rfc4175 422be12 to le/planar avx512 version
• AWS: add ENA running guide, see aws.md for detail

Changelog for 22.12

• tasklet: add thread and sleep option for core usage, see ST_FLAG_TASKLET_THREAD and ST_FLAG_TASKLET_SLEEP.
• tx: add user timestamp control, see ST20_TX_FLAG_USER_TIMESTAMP/ST30_TX_FLAG_USER_TIMESTAMP/ST40_TX_FLAG_USER_TIMESTAMP.
• rx/video: add dual core redundant mode support. See st20_redundant_api.h for detail. Header split only support this dual core redundant mode.
• lib/log: add notice level log, see ST_LOG_LEVEL_NOTICE.
• build: add clang support. See “Build with clang” section in build.md.
• tx: add user pacing control, see ST20_TX_FLAG_USER_PACING, ST30_TX_FLAG_USER_PACING, ST40_TX_FLAG_USER_PACING.
• video: add notify_vsync callback which happened when epoch time change to a new frame, vsync period is same to fps. See notify_vsync parameter in the session create ops for detail.
• csc: add y210 format support, y210 is the format for GPU 10bit yuv422 layout.
• sch/tasklet: enhance sleep feature with timer based sleep and user control.
• build: add AddressSanitizer(aka ASan) support, see asan.md
• fps: add full fps support, see README.md.
• plugin: implement OBS Studio source plugin, support UYVY/NV12/I420 formats.
• ext frame: add external frame support, see doc/external_frame.md.
• build: rename package name to mtl, also API naming prefix to mtl_xxx.
• st20p: add YUV_422_12bit YUV_444_10bit YUV_444_12bit RGB_10bit RGB_12bit support.
• plugin: add ffmpeg support with MTL package, see plugins/ffmpeg_plugin/.
• st20p: add packet level convert mode, see ST20P_RX_FLAG_PKT_CONVERT.
• arp: cache the results to a table, the second arp request can use the history results directly.
• st20p: add plane and linesize support, see struct st_frame.
• st20p: add st_frame_convert API which both the source and destination are st_frame.
• sample: add MSDK encode sample with MTL source, see app/msdk.

Changelog for 22.09

• License: update to BSD-3
• DPDK: update DPDK to v22.07
• ice: update driver to 1.9.11
• vf: add SRIOV based virtual NIC support, see vf.md.
• vm: add SRIOV+KVM based virtualization support, see vm.md.
• CSC: Color format SIMD convert API from CPU little endian format to RFC4175 YUV422 10bit BE, see st_convert_api.h.
• AF_XDP: introduce AF_XDP PMD experimental support, see af_xdp.md.
• pipeline: introduce pipeline friendly API for both st20 tx and rx, see st_pipeline_api.h for detail.
• iova: add map/unmap support for IO device, see st_dma_map and st_dma_unmap.
• Header split: introduce hdr split offload experimental support, see header_split.md.
• Ext frame: external frame mode to support user allocated memory, see st20_ext_frame and ST20_TX_FLAG_EXT_FRAME/ST20P_TX_FLAG_EXT_FRAME.
• st30: support 250us, 333us, and 4ms packet time.
• Windows: support DSA for rx offload.
• Windows: add TAP driver support.
• API: change st20_frame_meta to st20_rx_frame_meta, also add st20_tx_frame_meta for get_next_frame of st20 tx.
• API: change st_frame_meta to st_frame, also change the callback arg of st20p.notify_frame_done from (void) to struct (st_frame).
• plugin: add Media Transport Library as a plugin to OBS, only rx path now.
• fps: add 120(119.88) fps support, see ST_FPS_P119_88.

Changelog for 22.06

• User frame mode with uframe_pg_callback for rx video session.
• Color format SIMD convert API between RFC4175 YUV422 10bit BE and other LE format, see st_convert_api.h.
• SIMD build and runtime framework.
• Migration suppport for tx/rx video session if the cpu lcore usage is too busy, see ST_FLAG_TX_VIDEO_MIGRATE/ST_FLAG_RX_VIDEO_MIGRATE.
• DMA/DSA helper on SIMD convert API to reduce LLC usage for 4K/8K resolution, see st_convert_api.h.
• Format auto detect for rx video session, see ST20_RX_FLAG_AUTO_DETECT.
• rx: add payload type check in the hdr sanity inspection.
• st22: add frame mode support for tx and rx.
• st22: add pipeline mode support for both tx and rx, see st_pipeline_api.h for the API, tx_st22_pipeline_sample.c/rx_st22_pipeline_sample.c for the sample code.
• st22: add encode/decode plugin sample code, see jpegxs_plugin_sample.c for the sample and kahawai.json for the plugin so config.
• app: json config support for st22 pipeline mode.
• tx/st20: runtime session create/free features, adding runtime ratelimit support.
• st30: support 125us and 80us in audio pacing

Changelog for Beta 22.04

• Enabled field mode to support 1080i,PAL,NTSC with narrow pacing.
• Mempool usage optimization for both TX/RX, each TX session has dedicated mempool, one mempool for each RX queue. It also improve LLC affinity extremely.
• DMA offload support for RX video, lcore usage reduced.
• DPDK 21.11 support.
• VF pass all GTest tests.
• Support for 25fps.
• Enhanced algorithm with noise filter for video pacing profiling and TSC freq calibration.
• Fix check sum calculation(rf1071) for multicast report message.
• RX video slice mode support for low latency.
• TX video slice mode support for low latency.
• DMA(copy/fill) user API support, st_udma_xxx.
• PCAP dump API support for RX video session.
• Support for yuv444 8, 10, 12, 16 bit.

Changelog for V0.7.1

• Dynamic IP address change support for RX video session.
• Provide metadata info in the RX callback.
• Full audio channels support.
• GPM(general packet mode) and BPM(block packet mode) support for TX.
• 8K resolution support for both TX and RX.
• More automatic test cases coverage, 144 Gtest items totally.
• Add rtp path sample code.
• Add ST2110-22 sample code.

Changelog for first version V0.7.0

• First version with new design based on DPDK 21.08.

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