lvqr-transcode 1.0.0

Server-side transcoding for LVQR (Tier 4 item 4.6)
Documentation 
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[package]
name = "lvqr-transcode"
description = "Server-side transcoding for LVQR (Tier 4 item 4.6)"
version.workspace = true
edition.workspace = true
license.workspace = true
repository.workspace = true
rust-version.workspace = true
authors.workspace = true
keywords = ["lvqr", "streaming", "transcode", "abr"]
categories = ["multimedia"]

[features]
default = []
# Tier 4 item 4.6 session 105 B: real gstreamer-rs software encoder pipeline.
# Pulls gstreamer, gstreamer-app (appsrc / appsink), gstreamer-video (video
# caps helpers), and glib (BoolError, ObjectExt). Host must have the
# GStreamer 1.22+ runtime with `gst-plugins-base`, `gst-plugins-good`,
# `gst-plugins-bad`, `gst-plugins-ugly`, and `gst-libav` installed; install
# recipes live in `tracking/TIER_4_PLAN.md` section 4.6. Default OFF so CI
# runners without GStreamer continue to build the scaffold + pass-through.
transcode = [
    "dep:gstreamer",
    "dep:gstreamer-app",
    "dep:gstreamer-video",
    "dep:glib",
]
# Tier 4 item 4.6 session 156: VideoToolbox HW encoder backend on macOS.
# Implies `transcode` (the new module reuses gstreamer-rs); additionally
# requires the `applemedia` plugin from gst-plugins-bad which ships
# `vtenc_h264_hw`. Default OFF so non-mac builds (and macos builds that
# stick to x264) do not pay the gstreamer-bad applemedia surface. Install:
# `brew install gstreamer gst-plugins-bad` (or the official .framework
# installer at https://gstreamer.freedesktop.org/download/).
hw-videotoolbox = ["transcode"]
# NVENC (Nvidia GPU) HW encoder backend on Linux. Implies `transcode`;
# requires the `nvcodec` plugin from gst-plugins-bad which ships
# `nvh264enc`, plus a working CUDA runtime + Nvidia driver at runtime.
# Install: `apt-get install gstreamer1.0-plugins-bad nvidia-cuda-toolkit`
# plus a vendor driver. Default OFF so non-Nvidia builds do not pay the
# nvcodec surface.
hw-nvenc = ["transcode"]
# VAAPI HW encoder backend on Linux + Intel iGPU / AMD. Implies
# `transcode`; requires the `va` plugin from gst-plugins-bad which ships
# `vah264enc` (the modern VA-API encoder superseding the deprecated
# `vaapih264enc`), plus a libva driver (intel-media-va-driver-non-free
# for Intel; mesa-va-drivers for AMD) and a usable DRI render node.
# Default OFF.
hw-vaapi = ["transcode"]
# Intel Quick Sync Video HW encoder backend on Linux. Implies
# `transcode`; requires the `qsv` plugin from gst-plugins-bad which
# ships `qsvh264enc`, plus the Intel Media SDK / oneVPL runtime and a
# usable DRI render node. Default OFF.
hw-qsv = ["transcode"]

[dependencies]
bytes = { workspace = true }
dashmap = { workspace = true }
lvqr-fragment = { workspace = true }
metrics = { workspace = true }
parking_lot = { workspace = true }
serde = { workspace = true }
thiserror = { workspace = true }
tokio = { workspace = true }
tracing = { workspace = true }
# Feature-gated on `transcode`; see the feature comment above.
gstreamer = { workspace = true, optional = true }
gstreamer-app = { workspace = true, optional = true }
gstreamer-video = { workspace = true, optional = true }
glib = { workspace = true, optional = true }

[dev-dependencies]
serde_json = { workspace = true }
tokio = { workspace = true, features = ["macros", "rt-multi-thread", "time"] }