Readers (ndiout, fakesink) now handle MXL_ERR_FLOW_INVALID by releasing
and recreating the flow reader, then realigning the index to current time.
This lets consumer nodes survive a producer restart without exiting.
All mxlCreateInstance/FlowWriter/FlowReader options args changed from
nullptr to "" to match MXL reference implementation style.
mxlReleaseFlowReader calls guarded with null checks so cleanup is safe
when a mid-run reconnect attempt fails.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
studio-manager: call mxlGarbageCollectFlows before launching nodes to
clean up stale flow directories left by previous crashed runs.
shared/NodeBase.hpp: add mxl_status_str(mxlStatus) — converts error
codes to readable names (e.g. MXL_ERR_OUT_OF_RANGE_TOO_LATE). All
nodes now log these names instead of raw integers.
shared/FlowDef.hpp: use "audio/float32" as media_type for 32-bit audio
flows, matching the MXL SDK examples. audio/L{n} kept for other depths.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
flow_id is now optional (config().contains). When absent: skip the
MXL reader, active-wait, and NDI video path entirely. Video buffers
and NDI video frames are heap-allocated only when has_video.
Loop pacing: video branch sleeps 1ms on TOO_EARLY as before; audio-only
path sleeps 1ms when no chunk was available (audio_advanced == false)
to avoid busy-spinning.
NDI sender name changed from the video flow UUID to node_id(), which
is stable and human-readable for both video and audio-only modes.
To use audio-only: wire only audio_flow_id in build_graph, omit flow_id.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
sample_rate / fps_num gave 48000/30000 = 1 for 29.97 fps, producing
silence. Correct formula is sample_rate * fps_den / fps_num, matching
the calculation already used in testpattern.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
ndiout: p216_frame.FourCC was zero-initialized — NDI needs it explicitly
set to NDIlib_FourCC_video_type_P216 to send the correct format.
All three nodes: audio_rate = {sample_rate, 1} was always declared even
when has_audio is false (sample_rate = 0 in ndiout). Scoped into the
has_audio block so the bad rate can never be passed to mxlGetCurrentIndex.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Fix: c * 1920 → c * samples_per_frame (broke non-25fps or non-48kHz).
Fix: audio channel loop now iterates `channels` not `audio_slices.count`.
Rename: mxl_stride → video_stride, no_samples → samples_per_frame,
ndi_frame_10bit/16bit → v210_frame/p216_frame, ndi_audio_frame → ndi_audio.
Scope `ast` locally to its use block.
Drop unused #include "V210.hpp" and #include "FlowDef.hpp".
ndi_audio struct zero-initialized then filled only when has_audio.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
testpattern now optionally writes an audio flow when audio_flow_id is
wired in the graph. Each channel generates a sine wave at (c+1)*1000 Hz
(ch0=1kHz, ch1=2kHz, ...) at -18 dBFS broadcast reference level.
Phase is derived from the absolute audio_index so there are no clicks
at frame boundaries. One audio chunk per video frame (1920 samples at
48kHz/25fps), written via mxlFlowWriterOpenSamples with ring-buffer
fragment and channel stride handling matching ndiin.
build_graph: separate UUIDs for testpattern and ndiin flows; wire
testpattern audio_flow_id (no sink yet).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
V210.hpp: add fill_colorbars, fill_ire_ramp, fill_black, fill_white.
Shared fill_solid helper stamps the first line across all rows via
memcpy. Generic write_palette_line template handles both SMPTE and
IRE bar palettes. fill_frame kept as a backward-compat alias.
testpattern/main.cpp: read "pattern" from node config and dispatch
to the appropriate fill function (bars/ire/black/white).
build_graph: pass {"pattern","bars"} to testpattern node params.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Audio flows in MXL use mxlFlowWriterOpenSamples/CommitSamples, not
the grain API (mxlFlowWriterOpenGrain is for discrete video flows).
Using the grain API silently did nothing — hence "last published index: 0".
MXL audio is float32 planar: each channel occupies its own ring buffer
region accessed at base.fragments[*].pointer + c * slice.stride.
Two fragments handle ring buffer wraparound. No int32 conversion needed.
Also log continuous.channelCount/bufferLength instead of the discrete
sliceSizes field (wrong union member for audio).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- FlowDef.hpp: add make_audio_flow_def (NMOS IS-04 audio/Lnn flow)
- NDIReceiver: replace capture_v210 with capture() — single recv call
dispatches to FrameKind::{Video,Audio,None}; AudioInfo struct carries
sample_rate/channels/samples/channel_stride
- ndiin: optional audio writer when graph wires audio_flow_id; single
loop with 5ms NDI poll; audio grains written immediately on arrival;
video grains written when mxlGetCurrentIndex reaches video_index
- build_graph: rename ndiin video port flow_id → video_flow_id; add
audio_flow_id edge (no sink yet — wired to ndiin only)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- NDIContext struct handles NDIlib_initialize/send_create/send_destroy/destroy
so NDIlib_destroy() is guaranteed even if send_create fails (was leaked before)
- malloc/free for 10-bit and 16-bit frame buffers → std::vector<uint8_t>
- NDI frame structs point into vector data, no manual lifetime management
- static_cast for FourCC instead of C-style cast
- Tidy: ndi_frame_count replaces ndi_frame_counter, ++prefix form
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
itten