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741abb162c
* whisper.cpp: impl dtw algo * WIP: producing and placing DTW timestamps on tokens * Fix compile and assertion errors. Attempt to DTW timestamp with single_segment=false. * Fix mistake causing incorrect alignment of dtw timestamps * implement N_TOP_MOST and CUSTOM alignment heads setting * whisper: fix typo on alignment heads enum * Fix issues related to changes in whisper.cpp * Fixed excessive memory use when using DTW timestamps. Other minor fixes to DTW timestamping function * decoder: save cross QKs only if requested * Calling median filter with ggml_map_custom1 * Reimpl aheads n_top_most and custom. Sanity checks on chosen aheads * Copying cross QKs from decoder backend correctly * dtw: cleanup * Fix incorrect n_frames passed to dtw when near end of audio * Fix aheads_masks_init for backend != CPU * whisper : minor style * main : add dtw (wip) * whisper: fix invalid memory access in aheads_masks_init * main : add dtw (cont) * whisper : minor --------- Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>