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whisper.cpp
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whisper : more debug messages + fix fallback logic

pull/1615/head
Georgi Gerganov 2023-12-08 13:43:03 +02:00
parent 7bc4d22337
commit 29511d33c7
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GPG Key ID: 449E073F9DC10735
1 changed files with 15 additions and 11 deletions
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whisper.cpp
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@ -5028,6 +5028,7 @@ int whisper_full_with_state(
// basically don't process anything that is less than 1.0s
// see issue #39: https://github.com/ggerganov/whisper.cpp/issues/39
if (seek_end < seek_start + (params.speed_up ? 50 : 100)) {
WHISPER_PRINT_DEBUG("%s: input is too short - %d ms < 1000 ms\n", __func__, (seek_end - seek_start)*10);
return 0;
}
@ -5455,6 +5456,7 @@ int whisper_full_with_state(
// do not allow to go back in time
if (has_ts && seek_delta > seek_delta_new && result_len < i) {
WHISPER_PRINT_DEBUG("%s: decoder %d: failed due to seek_delta (%d > %d)\n", __func__, j, seek_delta, seek_delta_new);
failed = true; // TODO: maybe this is not a failure ?
continue;
}
@ -5483,6 +5485,7 @@ int whisper_full_with_state(
if (seek + seek_delta + 100 >= seek_end) {
result_len = i + 1;
} else {
WHISPER_PRINT_DEBUG("%s: decoder %d failed (result_len = 0)\n", __func__, j);
failed = true;
continue;
}
@ -5493,6 +5496,7 @@ int whisper_full_with_state(
seek_delta = 100*WHISPER_CHUNK_SIZE;
}
WHISPER_PRINT_DEBUG("%s: decoder %d completed\n", __func__, j);
completed = true;
continue;
}
@ -5508,6 +5512,7 @@ int whisper_full_with_state(
// sometimes, the decoding can get stuck in a repetition loop
// this is an attempt to mitigate such cases - we flag the decoding as failed and use a fallback strategy
if (i == n_max - 1 && (result_len == 0 || seek_delta < 100*WHISPER_CHUNK_SIZE/2)) {
WHISPER_PRINT_DEBUG("%s: decoder %d: failed due to repetition loop\n", __func__, j);
failed = true;
continue;
}
@ -5651,28 +5656,27 @@ int whisper_full_with_state(
WHISPER_PRINT_DEBUG("%s: best decoder = %d\n", __func__, best_decoder_id);
}
bool success = true;
// was the decoding successful for the current temperature?
// do fallback only if:
// - we are not at the last temperature
// - we are not at the end of the audio (3 sec)
if (it != (int) temperatures.size() - 1 &&
seek_end - seek > 10*WHISPER_CHUNK_SIZE) {
bool success = true;
if (it != (int) temperatures.size() - 1) {
const auto & decoder = state->decoders[best_decoder_id];
if (decoder.failed || decoder.sequence.avg_logprobs < params.logprob_thold) {
WHISPER_PRINT_DEBUG("%s: failed due to avg_logprobs %8.5f < %8.5f\n", __func__, decoder.sequence.avg_logprobs, params.logprob_thold);
success = false;
state->n_fail_p++;
}
}
if (success) {
//for (auto & token : ctx->decoders[best_decoder_id].sequence.tokens) {
// WHISPER_PRINT_DEBUG("%s: token = %d, p = %6.3f, pt = %6.3f, ts = %s, str = %s\n", __func__, token.id, token.p, token.pt, ctx->vocab.id_to_token.at(token.tid).c_str(), ctx->vocab.id_to_token.at(token.id).c_str());
//}
if (success) {
//for (auto & token : ctx->decoders[best_decoder_id].sequence.tokens) {
// WHISPER_PRINT_DEBUG("%s: token = %d, p = %6.3f, pt = %6.3f, ts = %s, str = %s\n", __func__, token.id, token.p, token.pt, ctx->vocab.id_to_token.at(token.tid).c_str(), ctx->vocab.id_to_token.at(token.id).c_str());
//}
break;
}
break;
}
WHISPER_PRINT_DEBUG("\n%s: failed to decode with temperature = %.2f\n", __func__, t_cur);