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whisper : add support for new distilled Whisper models (#1424)

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* whisper : add support for new distilled Whisper models

* whisper : print log when using distilled models
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Georgi Gerganov 2023-11-05 19:43:45 +02:00 committed by GitHub
parent 6d4d0b5b4b
commit 39cfad0dee
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1 changed files with 13 additions and 0 deletions
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whisper.cpp
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@ -3940,6 +3940,7 @@ static void whisper_process_logits(
// suppress task tokens
logits[vocab.token_translate] = -INFINITY;
logits[vocab.token_transcribe] = -INFINITY;
logits[vocab.token_prev] = -INFINITY;
if (params.logits_filter_callback) {
params.logits_filter_callback(&ctx, &state, tokens_cur.data(), tokens_cur.size(), logits.data(), params.logits_filter_callback_user_data);
@ -4558,6 +4559,7 @@ int whisper_full_with_state(
// these tokens determine the task that will be performed
std::vector<whisper_token> prompt_init = { whisper_token_sot(ctx) };
if (whisper_is_multilingual(ctx)) {
const int lang_id = whisper_lang_id(params.language);
state->lang_id = lang_id;
@ -4569,6 +4571,17 @@ int whisper_full_with_state(
}
}
{
const bool is_distil = ctx->model.hparams.n_text_layer == 2;
// distilled models require the "no_timestamps" token
// TODO: add input parameter (#1229)
if (is_distil) {
log("%s: using distilled model - forcing no_timestamps\n", __func__);
prompt_init.push_back(whisper_token_not(ctx));
}
}
int seek = seek_start;
std::vector<whisper_token> prompt;