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70cccaf | 1 | {"spec": "e2a2 stream layout v1 over [GGDLPC v1: unified coder (one learned causal FIR predictor per channel with arithmetic-mean fallback; one stateless pooled statistic: mean of the causal template abs differences and the last 16 coded abs residuals in scan order; two per-channel affine laws -> analytic folded GGD conditionals on the tau=2^(1/4) scale grid; canonical Huffman tables under the derived quotient split, <= 63 windowed hi values + escape at any bit depth; derived zero-run mode with elementary Golomb codes and exclusion tables, always available); inputs in [-N, N], N <= 65536; one call = one byte-padded bitstream, channel prefixes are literal bit prefixes]: two_stream = global[first scale group, whole plane, one pad] + per-macroregion detail streams (scale groups >= 1, coarse-to-fine, channel-major, one pad per region); all_detail = NO global stream, every channel per macroregion, each region decodable from its own bytes alone; one GGDLPC channel record per latent channel (global index); op-point streams are literal bit-prefixes", "version": 5, "stream_mode": "two_stream", "rank": 2, "macroregion": 64, "N": 31, "scale_groups": [[32, 0, 3], [16, 3, 9], [8, 9, 15], [4, 15, 21], [2, 21, 27]], "channels": [{"channel": 0, "mu": -0.0622620612035392, "a": 0.7456532012866169, "b": 0.6132483103031422, "u": 0.4384523960277382, "v": 0.427163367569213, "wq": [72, 150, -28, 25, 18], "bq": -93, "n_samples": 21757696}, {"channel": 1, "mu": -0.050431672544740035, "a": 0.7572132161697636, "b": 0.6908465700131371, "u": 0.2873737307355329, "v": 0.4931002542466914, "wq": [84, 139, -22, 19, 18], "bq": -61, "n_samples": 21757696}, {"channel": 2, "mu": -0.01244782535797908, "a": 0.7600933965525724, "b": 0.6525833671792349, "u": 0.33753488900407286, "v": 0.5234254924412832, "wq": [125, 89, -16, 4, 34], "bq": 42, "n_samples": 21757696}, {"channel": 3, "mu": -0.03815957810974103, "a": 0.3865678991672421, "b": 0.6588657805305401, "u": 0.8287271464896644, "v": 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