Fix nfts thumbnail processing by stefangutica · Pull Request #1609 · multiversx/mx-api-service

stefangutica · 2026-06-17T13:14:56Z

Reasoning

The current FFmpeg configuration fails for standard "limited range" video streams, causing an "Invalid argument" error in the MJPEG encoder.
The encoder requires explicit pixel format and strictness settings to accept standard H.264/YUV420p video inputs.

Added .videoFilters('format=yuv420p') to ensure consistent color space compatibility.
Added .outputOptions(['-strict', 'unofficial']) to allow processing of standard video color ranges.

Run the thumbnail generation service on an NFT asset that previously triggered the "Non full-range YUV" error.
Verify that the thumbnail is correctly generated and saved to the output path without FFmpeg errors.

github-actions · 2026-06-17T13:18:39Z

k6 load testing comparison.
Base Commit Hash: 64adf08
Target Commit Hash: 6720ba8

Metric	Base				Target				Diff
Metric	Avg	Max	90	95	Avg	Max	90	95	Avg	Max	90	95
Mex	46.84	202.06	59.78	62.28	37.79	446.08	51.64	55.23	-19.34% ✅	+120.77% 🔴	-13.62% ✅	-11.33% ✅
Accounts	49.04	695.15	59.99	62.42	39.76	686.11	52.29	55.57	-18.93% ✅	-1.30% ✅	-12.83% ✅	-10.97% ✅
Nodes	47.00	253.35	59.97	62.15	57.68	14943.46	55.45	60.14	+22.74% 🔴	+5798.28% 🔴	-7.53% ✅	-3.24% ✅
Transactions	59.33	1998.86	60.93	63.78	65.31	15245.61	54.90	57.31	+10.08% 🔴	+662.72% 🔴	-9.89% ✅	-10.14% ✅
Blocks	53.20	634.40	60.62	63.53	44.26	3660.53	53.85	56.43	-16.81% ✅	+477.01% 🔴	-11.17% ✅	-11.19% ✅
Pool	47.09	273.29	59.87	62.27	37.55	203.16	51.23	55.24	-20.25% ✅	-25.66% ✅	-14.43% ✅	-11.30% ✅
Tokens	47.36	665.35	60.01	62.18	37.60	305.78	51.41	55.25	-20.61% ✅	-54.04% ✅	-14.33% ✅	-11.14% ✅
Test Run Duration	60003.16				60002.35

Legend: Avg - Average Response Time, Max - Maximum Response Time, 90 - 90th Percentile, 95 - 95th Percentile
All times are in milliseconds.

fix nfts thumbnail processing

6720ba8