α-13 + α-14 changed two HEVC wire-byte fields to match kdirect
(sps_max_num_reorder_pics, decode_params IRAP|IDR flags). Output
unchanged (06b2c5a0... still all-zero). 5-codec regression sweep:
zero regression.
Cumulative iter11 eliminations: 4 fields (sps_max_num_reorder_pics,
sps_max_latency_increase_plus1, IRAP/IDR flags, num_entry_point_offsets)
all confirmed kernel-ignored on RK3399 per rkvdec-hevc.c grep.
Wire-byte landscape after iter11: every observable libva-vs-kdirect
HEVC control-payload diff is in a field rkvdec ignores. Bug 5 root
cause is NOT in S_EXT_CTRLS payload.
Same wall as Bug 4 / iter9: wire-byte search exhausted. Real cause is
in OUTPUT bitstream bytes the kernel reads. iter12 candidate: extend
γ infrastructure to dump source_data pre-QBUF, compare with kdirect
byte-by-byte. Bug 4 and Bug 5 likely both close via this same
instrumentation given the parallel structure.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
