Fork Network Overview

Fork Network Analysis

Comprehensive catalog of fixes, features, and improvements found across all forks of jocover/jetson-ffmpeg and Keylost/jetson-ffmpeg.

Generated: 2026-06-12 Forks enumerated: 237 unique (166 jocover direct, 56 Keylost direct, 71 grandchildren) Active forks (commits ahead or extra branches): 62 Mirrors (identical to parent): 174

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Processing Status

Updated every ~5 repos. Status key:

• Commits: ✓ all read | — none ahead | count if partial
• Issues (O/C): open/closed count checked, e.g. 2/5 ✓ = 2 open + 5 closed, all read
• PRs (O/C): same format
• Comments: ✓ all read | — none | partial if incomplete
• Refs: links in comments — N✓ = N refs found and followed | — none | N/M = N of M followed

Upstream Repos

Repo	Issues O/C	PRs O/C	Comments	Refs	Status
jocover/jetson-ffmpeg	80/39 ✓	11/9 ✓	✓	15✓	done
Keylost/jetson-ffmpeg	18/22 ✓	12/9 ✓	✓	12✓	done

Forks with Commits Ahead

#	Fork	Ahead	Behind	Parent	Branches	Commits	Issues O/C	PRs O/C	Comments	Refs	Status
1	Keylost/jetson-ffmpeg	74	0	jocover	dmabuf_wip, fork_fix, jetpacksupporttable, madsciencetist-stubs	✓	0/0	0/0	✓	—	done
2	dsleep/jetson-ffmpeg	32	0	jocover	—	✓	0/0	0/0	✓	—	done
3	muxable/jetson-ffmpeg	28	0	jocover	—	✓	0/0	1/0 ✓	✓	—	done
4	YuriiHoliuk/jetson-ffmpeg	26	0	keylost	dmabuf_wip, fork_fix, jetpacksupporttable, madsciencetist-stubs	✓	0/0	0/0	✓	—	done
5	xia-chu/jetson-ffmpeg	16	0	jocover	—	✓	0/0	0/0	✓	1✓	done
6	mattangus/jetson-ffmpeg	14	0	jocover	feature/docker	✓	0/0	0/0	✓	—	done
7	JeanPaulSB/jetson-ffmpeg	11	0	jocover	—	✓	0/0	0/0	✓	—	done
8	HunterAP23/jetson-ffmpeg	10	0	jocover	—	✓	0/0	0/0	✓	—	done
9	wangxiaoshuang/jetson-ffmpeg	9	6	keylost	—	✓	0/0	0/0	✓	—	done
10	hsuanguo/jetson-ffmpeg	8	25	keylost	feature/cherry-pick-rtsp-patch, feature/ffmpeg-6.1, feature/fixed-child-thread, feature/minor-fixes	✓	0/0	4/0 ✓	✓	2✓	done
11	Extend-Robotics/jetson-ffmpeg	8	74	douo (grandchild)	—	✓	0/0	0/0	✓	3✓	done
12	bradcagle/jetson-ffmpeg	7	0	jocover	nvutils	✓	0/0	0/0	✓	—	done
13	fingul/jetson-ffmpeg	7	25	keylost	—	✓	0/0	0/0	✓	—	done
14	Tantael/jetson-ffmpeg-fixed	7	74	douo (grandchild)	patch-1	✓	0/0	0/0	✓	—	done (README-only)
15	mguzzina/jetson-ffmpeg	6	0	keylost	—	✓	0/0	0/0	✓	1✓	done
16	v-faeez-kadiri/jetson-ffmpeg	5	25	keylost	—	✓	0/0	1/0 ✓	✓	—	done
17	dlavrantonis/jetson-ffmpeg	5	74	vietnx (grandchild)	—	✓	0/1 ✓	0/1 ✓	✓	—	done (README-only)
18	spotai/jetson-ffmpeg	5	25	v-faeez-kadiri (grandchild)	ffmpeg-8-support	✓	0/0	0/0	✓	—	done
19	vietnx/jetson-ffmpeg	4	2	jocover	fix-compatible-issue	✓	0/0	0/0	✓	—	done
20	SynclairVision/jetson-ffmpeg	4	2	keylost	—	✓	0/0	0/0	✓	—	done (trivial)
21	ReAlexLiu/jetson-ffmpeg	4	74	douo (grandchild)	—	✓	0/0	0/0	✓	—	done
22	moss-ag/jetson-ffmpeg	3	0	jocover	—	✓	0/0	0/0	✓	—	done (trivial)
23	izdeveloper/jetson-ffmpeg	3	25	keylost	jetpack-6.2.1	✓	0/0	0/0	✓	—	done
24	madsciencetist/jetson-ffmpeg	3	21	keylost	add_resize_option, add_resize_option2, stderr, stubs	✓	0/0	3/0 ✓	✓	—	done
25	AndBobsYourUncle/jetson-ffmpeg	3	21	madsciencetist (grandchild)	—	✓	0/0	0/0	✓	—	done
26	moss-robot/jetson-ffmpeg	2	0	jocover	—	✓	0/0	0/0	✓	—	done (trivial)
27	bepro-company/jetson-ffmpeg	2	0	jocover	—	✓	0/0	0/0	✓	—	done (trivial)
28	douo/jetson-ffmpeg	2	0	jocover	—	✓	0/0	0/0	✓	—	done
29	nulijiabei/jetson-ffmpeg	2	0	jocover	—	✓	0/0	0/0	✓	—	done (trivial)
30	rai-opensource/jetson-ffmpeg	2	74	douo (grandchild)	—	✓	0/0	0/0	✓	—	done (mirror of douo)
31	dbussert/jetson-ffmpeg	2	74	aveao (grandchild)	—	✓	0/0	0/0	✓	—	done
32	Ledrego/jetson-ffmpeg	2	25	izdeveloper (grandchild)	—	✓	0/0	0/0	✓	—	done (behind parent)
33	ahtonen/jetson-ffmpeg	1	0	jocover	—	✓	0/0	0/0	✓	—	done (trivial)
34	dthk-cogmatix/jetson-ffmpeg	1	0	jocover	—	✓	0/0	0/0	✓	—	done
35	aveao/jetson-ffmpeg	1	0	jocover	—	✓	0/0	0/0	✓	—	done
36	D31m05z/jetson-ffmpeg	1	1	jocover	—	✓	0/0	0/0	✓	—	done
37	jkms/jetson-ffmpeg	1	4	jocover	deb	✓	0/0	0/0	✓	—	done
38	didebuli/jetson-ffmpeg	1	4	jocover	—	✓	0/0	0/0	✓	—	done (trivial)
39	lyfpeter/jetson-ffmpeg	1	8	jocover	—	✓	0/0	0/0	✓	—	done (trivial)
40	timonsku/jetson-ffmpeg	1	10	jocover	—	✓	0/0	0/0	✓	—	done (trivial)
41	xsacha/jetson-ffmpeg	1	0	jocover	patch-1, patch-2, patch-3, patch-4	✓	0/0	0/0	✓	—	done
42	danhawker/jetson-ffmpeg	1	1	keylost	—	✓	0/0	0/0	✓	—	done
43	nguyenhunga5/jetson-ffmpeg	1	1	keylost	dmabuf_wip, fork_fix, jetpacksupporttable, madsciencetist-stubs	✓	0/0	0/0	✓	—	done (trivial)
44	AustinTodd-eng/jetson-ffmpeg	1	2	keylost	—	✓	0/0	0/0	✓	—	done (trivial)
45	matthewj-t6/jetson-ffmpeg	1	8	keylost	—	✓	0/0	0/0	✓	—	done
46	sonnyhe/jetson-ffmpeg	1	25	keylost	—	✓	0/0	0/0	✓	—	done (trivial)
47	nhahn/jetson-ffmpeg	1	25	keylost	—	✓	0/0	0/0	✓	—	done
48	jamitupya/jetson-ffmpeg	1	74	aveao (grandchild)	—	✓	0/0	0/0	✓	—	done (mirror of aveao)
49	EliteScientist/jetson-ffmpeg	1	74	aveao (grandchild)	—	✓	0/0	0/0	✓	—	done (mirror of aveao)
50	traversaro/jetson-ffmpeg	1	21	madsciencetist (grandchild)	addffmpeg61	✓	0/0	0/0	✓	—	done

Branch-Only Forks (0 ahead, extra branches)

#	Fork	Branches	Parent	Commits	Issues O/C	PRs O/C	Comments	Refs	Status
51	Parrot-Developers/jetson-ffmpeg	jetson-ffmpeg-parrot-branch	keylost	✓	0/0	0/0	✓	—	done (trivial)
52	LanderN/jetson-ffmpeg	optimize/jetson	keylost	✓	0/0	0/0	✓	—	done
53	Hansoluo/jetson-ffmpeg	dmabuf_wip, fork_fix, jetpacksupporttable, madsciencetist-stubs	keylost	✓	0/0	0/0	✓	—	done (trivial)
54	GlassBil/jetson-ffmpeg	cuda_buffers	keylost	✓	0/0	0/0	✓	—	done
55	sadhasld/jetson-ffmpeg	cursor/generate-comprehensive-api-documentation-e870	keylost	✓	0/0	0/0	✓	—	done (AI-gen docs)
56	therishidesai/jetson-ffmpeg	rdesai/jetpack-nixos-build	keylost	✓	0/0	0/0	✓	—	done
57	JetLinWork/jetson-ffmpeg	fork_fix	keylost	✓	0/0	0/0	✓	—	done (trivial)
58	peters/jetson-ffmpeg	issue-ffmpeg-6.1	keylost	✓	0/0	0/0	✓	—	done
59	thejasonfisher/jetson-ffmpeg	fork_fix	keylost	✓	0/0	0/0	✓	—	done (trivial)
60	w3sip/jetson-ffmpeg	feat/dq, feat/fix, feat/jp5.1, feat/jp51-2, feat/reproduce, release/0.9, release/0.9.1	keylost	✓	0/0	6/0 ✓	✓	2✓	done
61	cybernhl/jetson-ffmpeg	low_latency, moonlight_fixes, nvmpi_optional	cgutman (grandchild)	✓	0/0	0/0	✓	—	done
62	Extend-Robotics/jetson-ffmpeg-keylost	packaging	keylost	✓	0/0	0/0	✓	—	done (trivial)

Hidden-Branch Forks (found during mirror verification)

Initially classified as mirrors (0 ahead on master), but had unique work on branches.

#	Fork	Branches	Parent	Commits	Issues O/C	PRs O/C	Comments	Refs	Status
63	bmegli/jetson-ffmpeg	new-ffmpeg-api	jocover	✓	0/0	0/0	✓	1✓	done (NEW: encode API POC)
64	tmm1/jetson-ffmpeg	fancybits, patch-1	jocover	✓	0/0	0/0	✓	—	done (NEW: cmake fix)
65	kazuki0824/jetson-ffmpeg	resolve-missing-dep-on-pkgconfig	jocover	✓	0/0	0/0	✓	—	done (NEW: Yocto cross-compile)
66	cgutman/jetson-ffmpeg	moonlight_fixes, low_latency, nvmpi_optional	jocover	✓	0/0	0/0	✓	—	done (= cybernhl #61)
67	uschen-thirdparty/jetson-ffmpeg	max_perf_mode	jocover	✓	0/1 ✓	0/0	✓	—	done (known: setMaxPerfMode)
68	koenvandesande/jetson-ffmpeg	loosen_pixfmt_check	jocover	✓	0/0	0/0	✓	—	done (known: YUVJ420P)
69	gvsyn/jetson-ffmpeg	n4.4.1	jocover	✓	0/0	0/0	✓	—	done (superseded: 4.4.1 rebase)
70	coupdair/jetson-ffmpeg	dev_use	jocover	✓	0/0	0/0	✓	—	done (README only)

Verified Mirrors (164 forks — master only, 0 ahead, 0 issues)

All 164 verified via gh api repos/{owner}/{repo}/branches + compare endpoint. Full list in FORKS_REPORT.md section 21c.

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Agent Dispatch Map

Agent	Model	Scope	Forks
U1	sonnet	jocover upstream issues+PRs	jocover/jetson-ffmpeg
U2	sonnet	Keylost upstream issues+PRs	Keylost/jetson-ffmpeg
F1	sonnet	Top jocover-era forks	#2 dsleep, #3 muxable, #5 xia-chu
F2	sonnet	Keylost network	#1 Keylost branches, #4 YuriiHoliuk, #9 wangxiaoshuang, #15 mguzzina
F3	sonnet	Mid jocover-era + cgutman tree	#6 mattangus, #7 JeanPaulSB, #8 HunterAP23, #12 bradcagle, #61 cybernhl
F4	sonnet	Keylost mid-tier + branch-heavy	#10 hsuanguo, #13 fingul, #16 v-faeez-kadiri, #18 spotai, #23 izdeveloper, #24 madsciencetist, #60 w3sip
F5	sonnet	Fork subtrees	#11 Extend-Robotics, #14 Tantael, #17 dlavrantonis, #19 vietnx, #21 ReAlexLiu, #25 AndBobsYourUncle, #28 douo, #30 rai-opensource, #31 dbussert, #32 Ledrego, #35 aveao, #48 jamitupya, #49 EliteScientist, #50 traversaro
F6	sonnet	Small + branch-only	#20 SynclairVision, #22 moss-ag, #26-#29, #33-#47, #51-#59, #62

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Findings

Upstream Issue Clusters (Keylost/jetson-ffmpeg)

#	Cluster	Issues	Status	Key Links
1	RTSP/RTP out-of-band SPS/PPS decoder hang	#1, #14	Our fix: gjrtimmer@08e32c15 (not merged upstream)	w3sip@de0b039 (partial), gjrtimmer#1
2	JetPack 5.1.2+ nvbuf_utils removed	#16, PR#23	Fixed in Keylost master	—
3	Encoder bufsize/bitrate ignored	#5	Fixed upstream	—
4	FFmpeg version support (6.0, 6.1, 7.x, 8.0)	#6, #13, #28, PR#19	ffpatch.sh handles all now	—
5	Decode resize alignment corruption	PR#8 (merged→reverted #10)	Fixed in master later	—
6	Child process segfault / nvjpeg stubs	PR#9	Merged 2024-09-30	NVIDIA forum /t/189290
7	WITH_NVUTILS 20% more CPU	#11	Measurement methodology; no code fix	—
8	All frames marked as keyframes	#26	UNFIXED upstream	nvmpi_enc.cpp:92
9	Segmented HEVC only first segment plays	#39	Fixed Aug 2025	—
10	Codec flush not implemented	#42	UNFIXED — no response	—
11	Encoder 4K max resolution	#3, #44	Hardware limit; documented	NVIDIA forum /t/298688
12	Orin Nano has no HW encoder	#43	Hardware limit; documented	—
13	HEVC over RTMP needs Enhanced RTMP	#35	FFmpeg ≥6.1 required	gjrtimmer/releases
14	stderr vs stdout in libnvmpi	PR#15	UNFIXED — our PR#53 covers this	—
15	GPU memory / hwcontext_nvmpi	#31, #47	UNFIXED — major feature gap	jellyfin-ffmpeg#653
16	Encoder packet pool EAGAIN	#38	Workaround: -packet_pool_size:v 32	—
17	CPU rising during long decode	#41	Keylost could not reproduce on JP6.2	—
18	JPEG HW decode/encode	#37, #40	UNFIXED — NVJPG engine unused	—
19	H265 setLevel missing	#50	UNFIXED	—
20	Lossless H265 (qp=0)	#45	UNFIXED — enableLossless exists but not exposed	—
21	AV1 support request	#49	UNFIXED — HW capable on AGX Orin	—
22	Upstream to FFmpeg mainline	#46	No response	—
23	Ubuntu 22.04 compilation	#21, PR#48	Workaround: downgrade linux-libc-dev	—
24	pkg-config nvmpi not found	#22, #36	User error; documented	—

Fork Features & Fixes

Bug Fixes

Fix	Fork	Commit	Severity	In Our Repo?
Mutex deadlock on EOS in decoder	cgutman/cybernhl	58a977d4	CRITICAL	NO
delete vs delete[] for array buffers (heap corruption)	cgutman/cybernhl	ff8fd95a	CRITICAL	NO
Uninitialized pointer deletion on close	cgutman/cybernhl	49d55d10	CRITICAL	NO
Decoder hang on close without data (no resolution event)	cgutman/cybernhl	00455615	HIGH	NO
Child process decoder segfault (NvBufferSession)	xia-chu (via Keylost fork_fix)	fd0900d7	HIGH	Verify
Wrong color format ABGR32→XRGB32 in RGBA→YUV converter	dsleep	018e6e2e	MEDIUM	NO
Encoder hang: raw ptr → unique_ptr for NvVideoEncoder	dsleep	17443b0e	MEDIUM	NO
AV_PIX_FMT_YUVJ420P → YUV420P remapping for MJPEG sources	bradcagle	67e7bbcd	MEDIUM	NO
All frames marked as keyframes (encoder)	spotai	1324d7d6	CRITICAL	NO
H.265 encoder header/IDR unbounded scan	spotai	2b715e81	CRITICAL	NO
Missing return statement in encoder capture cb (UB→segfault)	Extend-Robotics	0229e5ba	CRITICAL	NO
Missing return statement in decoder capture cb (UB→segfault)	Extend-Robotics	6d327624	CRITICAL	NO
glibc 2.34+ pthread_join segfault (Ubuntu 22.04+)	LanderN	optimize/jetson (3 commits)	CRITICAL	NO
4K I-frame buffer overflow (4MB→10MB + bounds check)	GlassBil	cuda_buffers branch	HIGH	NO
RTSP/extradata fix (prime decoder with SPS/PPS)	w3sip	0d320fe5	HIGH	Our fix: gjrtimmer@08e32c15
Decoder crash-on-exit (cleanup queued buffers)	w3sip	49039f81	HIGH	NO
NvBufferSession lifecycle in decoder	dthk-cogmatix	single commit	MEDIUM	NO
Memory leak in nvmpi_enc + cleanup	vietnx	a8edb1c1	MEDIUM	NO
insert_vui for FPS info in stream	vietnx	fdbb815a	MEDIUM	NO
JetPack 4.4/4.5/4.6 compat fixes	vietnx	2 commits	LOW	N/A (JP4 era)
Missing new file mode in ffmpeg_nvmpi.patch	HunterAP23	4cca5adf	LOW (superseded)	N/A
Remove spurious -lnvbufsurface from pkg-config	JeanPaulSB	fcdae9fa	LOW	Verify
Revert jocover PR#78 (CMake/pc changes)	xia-chu	85205907	LOW	N/A
nvbuf_utils removal for CMake	AndBobsYourUncle	b8fb1ee3	LOW	N/A
pkg_check_modules(libv4l2) fix	D31m05z	single commit	LOW	NO

Features

Feature	Fork	Commit/Branch	Value	In Our Repo?
condition_variable blocking wait for low-latency decode	cgutman/cybernhl	caac9899 (low_latency branch)	HIGH	NO (TODO.md tracks this)
Dynamic bitrate control API (nvmpi_encoder_set_bitrate)	muxable	1a0c3bdc	HIGH	NO
Force IDR frame API (nvmpi_encoder_force_idr)	muxable	1a0c3bdc	HIGH	NO
JPEG HW decode prototype (NvJPEGDecoder C API)	bradcagle	cd9bf72e	MEDIUM (incomplete)	NO
Optional NVMPI build (#if CONFIG_NVMPI guards)	cgutman/cybernhl	b015913a (nvmpi_optional)	MEDIUM	NO
Expanded encoder params (QP/SAR/ROI/lossless/slice/VUI/AUD)	muxable	1a0c3bdc	MEDIUM	NO
isRawRGBA encoder param actually wired	dsleep	cf1bb455	LOW	NO
FFmpeg 4.3 patch compatibility	xia-chu	cc8dbd40	LOW (superseded)	N/A
Zero-copy DMA-BUF decode+encode pipeline	YuriiHoliuk	26 commits	HIGH	NO
VIC hardware scale filter (vf_scale_vic)	YuriiHoliuk	vf_scale_vic.c +468 lines	HIGH	NO
P010 10-bit decode support	YuriiHoliuk	4aab1b56	HIGH	NO
dlopen lazy-loading libnvmpi.so	YuriiHoliuk	b4ede2c9	MEDIUM	NO
hwcontext_nvmpi (FFmpeg HW device type)	mguzzina	6 commits (WIP)	HIGH	NO
Configurable frame_pool_size / packet_pool_size	spotai	cf0560b5	HIGH	NO
FFmpeg 8.0+ compatibility	spotai	f0a52dfa	HIGH	Verify
RTSP extradata fix (co-authored w/ w3sip)	hsuanguo	PR#3	MEDIUM	Verify
Decoder resize option (-resize WxH)	madsciencetist	add_resize_option2 branch	MEDIUM	NO
stderr→stdout fix (all prints to stderr)	madsciencetist	PR#1	MEDIUM	Our PR#53
Decoder thread naming (pthread)	madsciencetist	PR#1	LOW	NO
JetPack 6 path auto-detection (/tegra vs /nvidia)	nhahn	single commit	MEDIUM	NO
CUDA buffer return API (frames stay on GPU)	GlassBil	cuda_buffers branch	HIGH	NO
setMaxPerfMode(1) decode perf	LanderN/douo	one-liner	HIGH	Verify
Encoder poc-type=2 (zerolatency display order)	Extend-Robotics	96803164	MEDIUM	NO
POC new FFmpeg receive_packet API	Extend-Robotics	1c100f1c	MEDIUM (reference)	NO
FFmpeg 4.4 port	aveao	144f96ed	LOW (superseded)	N/A
FFmpeg 4.4.2 patch fix	dbussert	9318e2de	LOW (superseded)	N/A
FFmpeg 6.1 full overlay	traversaro	c83482ed	LOW (we have it)	N/A
Missing unistd.h in nvmpi_enc.c	traversaro	9148a0f0	LOW	Verify
JetPack 5.0 compat + repo restructure	ReAlexLiu	07e106eb	LOW (reference)	N/A
NixOS flake.nix build	therishidesai	rdesai/jetpack-nixos-build	LOW (niche)	N/A
JetPack 6.2 one-shot install script	fingul	37-line script	LOW (reference)	N/A
Offline FFmpeg build support	w3sip	release/0.9 branch	LOW	NO
Expanded encoder params (QP/SAR/ROI/lossless/slice/VUI/AUD)	muxable	1a0c3bdc	MEDIUM	NO

Build / Packaging / Compat

Item	Fork	Details	Value
NvBufSurface/NvUtils full migration (JP5+)	bradcagle (nvutils branch)	Decoder + CMake done, encoder partial	MEDIUM (reference)
JetPack 4/5 dual-path in encoder	dsleep	#if JETPACK_VER auto-detect via lsb_release	MEDIUM (reference)
Vendor all NVIDIA sample classes in-repo	dsleep	Eliminates host MMAPI dependency	LOW (different approach)
Cross-compilation via $TARGET_ROOTFS sysroot	muxable	aarch64.cmake toolchain + Dockerfile	LOW
Pre-built .deb CI pipeline + binary distribution	muxable	GitHub Actions + CPack	LOW
Cross-compilation Dockerfile (QEMU, L4T r32.5.0)	mattangus	feature/docker branch	LOW (JP4 only)
CMake cflags quoting fix	tmm1	428edfec (fancybits branch)	MEDIUM
Yocto/BITBAKE_SYSROOT cross-compile	kazuki0824	resolve-missing-dep branch (4 commits)	MEDIUM
New FFmpeg send_frame/receive_packet API POC	bmegli	437f8c55 (new-ffmpeg-api branch)	HIGH (reference)

Upstream Issue Clusters (jocover/jetson-ffmpeg)

#	Cluster	Issues	Status	Key Links
1	nvbuf_utils removal / JetPack 5.1.2+	#115, #120, #123, #126, #134, #136	UNFIXED upstream; Keylost fixed	NvUtils migration guide
2	FFmpeg version support 5.x/6.x/7.x	#129, #138	UNFIXED; PR#132 (new API)	bmegli PR#132
3	Encoder latency (old encode2 API)	#131, #7	UNFIXED; PR#132 implements receive_packet	—
4	Encoder thread race condition	#130	UNFIXED; packet_pools unsynchronized	bmegli identified
5	Missing return statement UB	#127, #98	UNFIXED; Extend-Robotics fixed	0229e5ba, 6d327624
6	Encoder PTS truncation + circular buffer	#41, #48, #100	UNFIXED; teplofizik patches exist	patches.zip
7	YUVJ420P / pixel format issues	#20, #60, #66, #68, #73, #83, #116	PR#74 open	—
8	Linesize/stride mismatch crash	#64, #80	PR#79 MERGED (vietnx)	—
9	Decoder hangs with IP cameras	#111, #1, #5, #13	PR#22 MERGED (cgutman)	—
10	NV12 pixel format support	#11, #73, #133	PR#25,#26,#27 open (xsacha)	—
11	setMaxPerfMode missing	#120, PR#125	UNFIXED; 28→64fps 4K, 46→290fps 720p	—
12	Memory leaks	#82	PR#15,#16 MERGED (decoder); encoder leaks open	—
13	Encoder quality/CRF control	#50, #52, #7, #93	UNFIXED	—
14	Wrong output size / green line (mod-16)	#8, #101, #51	UNFIXED; hardware limit	—
15	CUDA / zero-copy decode	#62, #67, #92, #93, #121	UNFIXED	NVIDIA decode-to-CUDA docs
16	Non-monotonic DTS	#76, #110	Related to PTS truncation	—
17	Build issues	#2, #37, #47, #56, #109	Various	—
18	VP8 missing definition	#71, #72	UNFIXED	—
19	Thread lifecycle / Moonlight	#10, #104	PR#22,#23 MERGED (cgutman)	—
20	10-bit video support	#75, #80	UNFIXED	—
21	DMA buffer encode	#117, #118	UNFIXED	—
22	Decode in child process	PR#99	UNFIXED upstream; Keylost fixed	—

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Summary: What We Can Use

CRITICAL — port immediately (safety/correctness bugs)

#	Fix	Source	Commit	Why
1	Mutex deadlock on EOS	cgutman/cybernhl	58a977d4	Decoder deadlocks if EOS arrives while lock held
2	delete vs delete[] arrays	cgutman/cybernhl	ff8fd95a	UB/heap corruption in decoder+encoder
3	Uninitialized pointer deletion	cgutman/cybernhl	49d55d10	Crash on close if < MAX_BUFFERS used
4	All frames marked as keyframes	spotai	1324d7d6	Every packet flagged KEY; breaks seek, GOP, rate control
5	H265 header/IDR unbounded scan	spotai	2b715e81	Unbounded NAL scan can read past buffer
6	Missing return in encoder cb (UB)	Extend-Robotics	0229e5ba	Segfault on L4T 5.1+
7	Missing return in decoder cb (UB)	Extend-Robotics	6d327624	Segfault on L4T 5.1+
8	glibc 2.34+ pthread_join crash	LanderN	optimize/jetson (3 commits)	Crash on Ubuntu 22.04+
9	4K I-frame buffer overflow	GlassBil	cuda_buffers branch	4MB chunk too small for 4K I-frames

HIGH — port soon (major features + important fixes)

#	Feature/Fix	Source	Reference	Why
10	Decoder hang on close without data	cgutman/cybernhl	00455615	Indefinite hang if opened+closed without frames
11	Low-latency blocking wait	cgutman/cybernhl	caac9899	condition_variable for AV_CODEC_FLAG_LOW_DELAY
12	Dynamic bitrate + force IDR APIs	muxable	1a0c3bdc	Runtime encoder control without teardown
13	Zero-copy DMA-BUF pipeline	YuriiHoliuk	26 commits	get_frame_fd/put_frame_fd + DRM_PRIME
14	VIC hardware scale filter	YuriiHoliuk	vf_scale_vic.c	Zero-copy hardware resize in decode pipeline
15	hwcontext_nvmpi (FFmpeg HW type)	mguzzina	6 commits (WIP)	Proper FFmpeg GPU pipeline integration
16	setMaxPerfMode(1)	LanderN/douo	one-liner	4K HEVC: 28→64fps; 720p H264: 46→290fps
17	CUDA buffer return API	GlassBil	cuda_buffers branch	Decoded frames stay on GPU
18	P010 10-bit decode	YuriiHoliuk	4aab1b56	10-bit HEVC decode support
19	Configurable pool sizes	spotai	cf0560b5	frame_pool_size + packet_pool_size options
20	Decoder crash-on-exit fix	w3sip	49039f81	Cleanup queued buffers in destructor
21	YUVJ420P→YUV420P remapping	bradcagle	67e7bbcd	Fixes MJPEG-source decode
22	JetPack 6 path auto-detection	nhahn	single commit	/tegra vs /nvidia conditional CMake

MEDIUM — evaluate for inclusion

#	Item	Source	Why
23	Decoder resize option (-resize WxH)	madsciencetist	HW BlockLinear→PitchLinear "free" resize
24	dlopen lazy-loading libnvmpi.so	YuriiHoliuk	Prevent EGL crash at startup
25	Expanded encoder params (QP/SAR/ROI/lossless)	muxable	Expose more hardware capabilities
26	Wrong color format ABGR32→XRGB32	dsleep 018e6e2e	RGBA→YUV converter fix
27	Encoder hang fix (unique_ptr)	dsleep 17443b0e	Safer encoder lifecycle
28	JPEG decode prototype	bradcagle cd9bf72e	Reference for JPEG feature
29	Optional NVMPI build (#if CONFIG_NVMPI)	cgutman b015913a	Build FFmpeg without nvmpi
30	NV12 pixel format support	xsacha patches	Native HW format exposure
31	Encoder PTS truncation fix	teplofizik	Non-monotonic DTS in FLV/RTMP
32	Encoder memory leaks	vietnx a8edb1c1	Unfixed in both upstreams
33	Encoder poc-type=2 (zerolatency)	Extend-Robotics 96803164	Display order = decode order
34	NvBufferSession lifecycle fix	dthk-cogmatix	Decoder capture loop correction
35	insert_vui for FPS info	vietnx fdbb815a	FPS metadata in stream

REFERENCE ONLY

Item	Source	Notes
Vendor NVIDIA sample classes	dsleep	Different approach; we use devcontainer mounts
Cross-compilation sysroot	muxable	We target native Jetson builds
CPack .deb packaging	muxable, jkms, Extend-Robotics	Evaluate later for distribution
NixOS flake.nix	therishidesai	Niche platform
JetPack 4/5 dual-path	dsleep	CMake auto-detect handles this
Full decoder refactor	w3sip feat/dq	Code quality improvements; too divergent to cherry-pick

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Coverage

• 237 forks total: ALL enumerated, ALL had branches checked via gh api repos/{owner}/{repo}/branches
• 62 active forks (initial triage): ALL analyzed — commits, ALL branches, issues, PRs, comments, refs followed
• 8 hidden-branch forks (found during mirror sweep): ALL analyzed — 3 new findings (bmegli, tmm1, kazuki0824), 5 duplicates of known
• 164 verified mirrors: Confirmed master-only, 0 ahead on all branches, 0 issues, 0 PRs
• 2 upstream repos: ALL issues (159 total), ALL PRs (41 total), ALL comments, ALL external links followed
• Total forks with unique work: 70 (62 + 8 hidden-branch)
• Total verified empty: 164
• Total trivial (README/docs only): ~10 (Tantael, dlavrantonis, coupdair, etc.)
• Grand total checked: 237/237 (100%)