6779d9c807
The port is forbidden from reimplementing media assembly and Static.slb is exactly that case: no RIFF, no seek chunk, no XACT container, just a packed run of whole 2048-byte XMA1 packets, so a wave is defined only by (offset, packet count) and the header has to be synthesized. That step now happens once, in the crate that owns the format, instead of in each consumer. `slb::xma1_wave_riff` wraps raw packets; `media::se_wave_riff` looks the bank up and reads just the packets asked for. Both reuse the existing synth_xma1_fmt / build_riff, which are already byte-identical to what tools/re-capture/ slb_extract_wave.py writes -- so this is exposure, not a second implementation. It reads a TARGETED range rather than the whole bank, and that is load-bearing: Static.slb is the ONE entry of sound.pak's 9 519 whose declared extent runs past the end of the extracted segments -- by exactly 616 768 B -- so reading it whole fails outright on this extraction. Every cue we need is in the first few hundred KB. Recorded rather than worked around silently. Verified as an artifact, not a compile: all three cues decode through ffmpeg to mono 48 kHz PCM at 0.533 / 0.344 / 1.016 s, non-silent (rms 2085 / 2985 / 4327, peaks 29813 / 16973 / 32767). The refusal path is exercised in the same run -- an impossible packet count is rejected rather than returning a short stream, because a truncated XMA decodes to plausible-sounding garbage. Also adds docs/re/captures/ORACLE-CAPTURES.md: an index of the nine canary framebuffer captures already in this repo, and a plain statement that THEY are the reference and `screen render` is not.
18 lines
924 B
Plaintext
18 lines
924 B
Plaintext
# se_wave_riff — the three menu cues, decoded end to end
|
|
|
|
$ cargo run -p sylpheed-formats --example se_wave_dump -- /tmp/se
|
|
|
|
/tmp/se/move.riff: 8252 bytes (4 packets at 0x1ec0)
|
|
/tmp/se/back.riff: 4156 bytes (2 packets at 0xec0)
|
|
/tmp/se/confirm.riff: 12348 bytes (6 packets at 0x5d6c0)
|
|
refusal path ok: Static.slb: 1048576 packets at 0x1ec0 need 2147483648 bytes, but the bank declares only 8970240 bytes
|
|
|
|
$ ffmpeg -i <cue>.riff <cue>.wav # then measure the PCM
|
|
|
|
move 48000 Hz mono 0.533 s rms 2084.7 peak 29813 non-quiet 47.5%
|
|
back 48000 Hz mono 0.344 s rms 2984.7 peak 16973 non-quiet 95.1%
|
|
confirm 48000 Hz mono 1.016 s rms 4327.0 peak 32767 non-quiet 92.5%
|
|
Non-silent, plausible envelopes, durations consistent with a UI blip.
|
|
The refusal path is exercised in the same run: an impossible packet count is
|
|
rejected rather than returning a short stream.
|