holm/whisper.cpp
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49 Commits

Author SHA1 Message Date
shibukazu
cfc06bf8df
whisper : suppress non-speech-related token outputs (#473) 
* add non-speech-token suppression

* add suppress non-speech_tokens param
 2023-02-08 09:05:34 +02:00
sandrohanea
2bfe0ebc0f
whisper : fixed Beam Search Strategy and exposed whisper_pcm_to_mel_phase_vocoder (#474) 
Co-authored-by: Sandro Hanea <sandrohanea@microsoft.com>
 2023-02-08 09:01:47 +02:00
kamranjon
a1c1583cc7
whisper : add whisper_full_lang_id() for getting the context lang (#461) 2023-02-05 14:46:26 +02:00
Matija Pevec
d012b5c7e4
whisper : add "split_on_word" flag when using using "max_len" option (#455) 
* Update whisper.cpp

* fix: trim function

* feat: added flag to split on word

* fix: arguments for main
 2023-02-05 14:44:23 +02:00
Georgi Gerganov
1ccb8a46a5
bench : fix Windows linkage by moving ggml benches in whisper lib .. 2023-01-18 21:19:50 +02:00
Georgi Gerganov
c9aeb33676
stream : fix --keep_context argument to be used correctly (#354) 2023-01-16 19:37:40 +02:00
Georgi Gerganov
8de452c18b
Improve decoding (#291) 
* whisper : prepare infra for new decoding strategies

* whisper : apply logit filters and compute logprobs

* whisper : add whisper_get_logits()

* whisper : separate self and cross attention memory

Initial step needed for supporting parallel decoders

* whisper : move probs_id buffer to whisper_context

* whisper : refactor kv cache into separate struct

* whisper : move self-attention kv cache to whisper_decoder

* whisper : wip decoding parameters + strategies

* whisper : wip decoding parameters + strategies (part 2)

* whisper : wip decoding parameters + strategies (part 3)

* whisper : wip decoding parameters + strategies (part 4)

* whisper : fix prompt_past update to not include prompt_init

* whisper : temperature + best_of support

* whisper : support for compression_ration_threshold

We actually use entropy, but it is similar

* command : fix example to use logits instead of obsolete probs

* whisper : handle empty sequence ranking

* whisper : add WHISPER_DEBUG + diagnostic prints + new main args

* whisper : minor fixes

* whisper : add beam-search support

* whisper : bug fix when there no previous context

* whisper : add comments

* stream : disable temperature fallback

For real-time processing, we always want a single decoder running at T=0

* whisper.swiftui : update example - fix paths + add empty folders
 2023-01-15 11:29:57 +02:00
Georgi Gerganov
4ef3398e8f
ggml : remove obsolete zeroing + comment fixes (#390) 2023-01-08 20:21:03 +02:00
Syahmi Azhar
1512545149
whisper : add loader class to allow loading from buffer and others (#353) 
* whisper : add loader to allow loading from other than file

* whisper : rename whisper_init to whisper_init_from_file

* whisper : add whisper_init_from_buffer

* android : Delete local.properties

* android : load models directly from assets

* whisper : adding <stddef.h> needed for size_t + code style

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
 2023-01-08 13:03:33 +02:00
Georgi Gerganov
d51c5eb906
ggml : define MIN / MAX only if not defined (minor) 2023-01-05 21:16:52 +02:00
Georgi Gerganov
d97e6005e9
whisper : add whisper_n_audio_ctx and check for invalid audio_ctx 
closes #344
 2022-12-31 09:57:19 +02:00
Matheus de Sousa
8e3f129b4d
minor : resolves some of warnings when compiling with clang/clang++ (#294) 
* Resolves some of warnings when compiling with clang/clang++

Mostly nit stuff that clang catches when compiling with -Wall -Wextra
-pedantic.

- Fix comparison between sign/unsigned integers.
- Passes a constant reference (const&) instead of copying each time.

* minor : normalize coding style

* minor : fix warning

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
 2022-12-19 20:19:01 +02:00
Georgi Gerganov
fba10a4c68 whisper : language auto-detect (#59) 2022-12-17 18:49:44 +02:00
Georgi Gerganov
bf69b669a0 whisper : add whisper_tokenize() 
Tokenizes a string into a list of vocabulary tokens
 2022-12-16 19:38:18 +02:00
Georgi Gerganov
78d13257be
Try to improve the token sampling strategy (#193) 
* whisper : try to improve the token sampling strategy

- Add the "max_initial_timestaamp" token logic from OpenAI
- Disallow sampling timestamps that are in the past

* whisper : fix the max initial timestamp logic + fallback decoding
 2022-12-02 21:51:50 +02:00
Georgi Gerganov
4698dcdb52 whisper : add mechanism for aborting the whisper_full() computation 2022-11-27 20:42:45 +02:00
Georgi Gerganov
e266cb0723
whisper.objc : add real-time processing (#97) 
Similar to the "stream" app
 2022-11-26 18:32:46 +02:00
Georgi Gerganov
c207eed431
whisper.objc : fix build warnings 2022-11-26 16:27:04 +02:00
Georgi Gerganov
be16dfa038
whisper.wasm : do not block page while processing (close #86) 2022-11-25 23:07:42 +02:00
Georgi Gerganov
b8ce25dec1
refactoring : more readable code 2022-11-25 19:28:04 +02:00
Georgi Gerganov
385236d1d3
stream : "-kc" now enables context keeping from previous segment (#90) 
By default, the context keeping is disabled
 2022-11-22 18:21:15 +02:00
M. Eren Akbiyik
63ae03b8e0
Prompt previous tokens for streaming (#163) 
* feat: prompt previous tokens for streaming

I used a vector pointer instead of vector itself because it gave weird errors, and why not

* convert vector to use with C api

* feat: remove old refs, check for prompt size

* feat: use better way of getting the pointer
 2022-11-22 18:10:35 +02:00
Georgi Gerganov
fb8d77f760 stream : add "audio_ctx" parameter 
Used to overwrite the audio context size of the Encoder.
For example, setting "audio_ctx = 512" will make it run about 3 times
faster, processing about 10s of audio, instead of 30s.

The transcription quality drops, but this can be used for real-time
streaming purposes where performance is important.
 2022-11-20 21:22:41 +02:00
Georgi Gerganov
62b5ff875c stream : add "max_tokens" parameter 
Used to limit the number of tokens in a segment.
Useful to battle with word repetition when using partial encoder context
 2022-11-20 21:22:41 +02:00
Georgi Gerganov
d351771a4b stream : add "single_segment" option 
Force the entire audio chunk to be transcribed into a single segment
 2022-11-20 21:22:41 +02:00
Georgi Gerganov
c058aaf22e stream : partial encoder experiments 2022-11-20 21:22:41 +02:00
Georgi Gerganov
83c742f1a7 whisper : add option to speed up the audio tempo by x2 
Using a Phase Vocoder for speeding up the audio tempo by scaling down
the frequencies in the frequency domain.

This reduces the computation in the Encoder by a factor of 2.
The transcription accuracy is degraded, but for slow to normal speech -
it seems to be still very good.

I think this can find application for real-time transcription - i.e. the
"stream" example.
 2022-11-13 16:25:43 +02:00
Georgi Gerganov
c30bffc8a5
ref #22 : add "duration" option 
Can be used to partially process a recording
 2022-11-07 20:14:52 +02:00
Georgi Gerganov
d5afebd37c
whisper : token-level timestamp refactoring (#49, #120) 
This turned out pretty good overall. The algorithm has been moved from
main.cpp to whisper.cpp and can be reused for all subtitles types. This
means that now you can specify the maximum length of the generated
lines. Simply provide the "-ml" argument specifying the max length in
number of characters
 2022-11-02 21:45:54 +02:00
Georgi Gerganov
57fb46f307 main : add option for word-leve timestamps (very experimental) 2022-10-30 17:06:57 +02:00
Georgi Gerganov
eba62e0fa1
close #113 : fix struct whisper_token_data 2022-10-30 08:23:52 +02:00
Georgi Gerganov
dec40be58f parallel : print time of audio boundaries + fix timings 2022-10-29 19:37:19 +03:00
Georgi Gerganov
0b2dc3c82c parallel : working 2022-10-29 19:37:19 +03:00
Georgi Gerganov
85d6e1e1e7 main : fix sampling time + add max_context parameter 2022-10-29 19:37:19 +03:00
Georgi Gerganov
72e9cdd6bf parallel : adding tool for parallel transformer inference 2022-10-29 19:37:19 +03:00
Georgi Gerganov
34bb3ab0cf ggml : add system info functions 2022-10-25 20:53:48 +03:00
Georgi Gerganov
7affd309d3 whisper : add new-segment callback 
Can be used to process new segments as they are being generated.
Sample usage in main, for printing the resulting segments during the
inference.
 2022-10-22 21:17:21 +03:00
Georgi Gerganov
31ff0c6a1f wip : experimental color coding of tokens based on probabilities 2022-10-22 21:17:21 +03:00
Georgi Gerganov
7eeef0358a
ref #52 : improve greedy sampling strategy 
Force timestamp token to be sampled if the probability sum over all
timestamp tokens is above the probability of any other token
 2022-10-18 19:48:15 +03:00
Georgi Gerganov
2d171ced32
close #32 : add comment about thread-safety of the C-style API 2022-10-18 18:27:57 +03:00
Georgi Gerganov
e30cf83158
ref #57, #62, #63 : remove unions in C-api + remove designated initializers 
We are not ready for designated initializers - many compilers do not
support this C++ feature yet, so removing it's non-trivial usages.
 2022-10-18 18:17:24 +03:00
Georgi Gerganov
9d5723435f
ref #35 : add <stdbool.h> to whisper.h 
"bool" type is not implicitly defined for some compilers.
 2022-10-10 08:11:18 +03:00
Georgi Gerganov
9bbca3110f ref #9 : add API documentation in whisper.h 2022-10-08 18:09:56 +03:00
Georgi Gerganov
2f069335ab Adding sanitizer tests 2022-10-08 11:43:42 +03:00
Georgi Gerganov
481cd685d5
ref #10 : option to keep context in "stream" example 
Seems the results become worse when we keep the context, so by default
this is not enabled
 2022-10-07 22:30:44 +03:00
Georgi Gerganov
7787b878e1
ref #16, #22 : add "offset" argument 
Allows to start processing the input audio at some offset from the
beginning. Useful for splitting a long job into multiple tasks.
 2022-10-07 22:00:40 +03:00
Georgi Gerganov
6814cc9b02 Improve result printing 2022-10-04 23:18:15 +03:00
Georgi Gerganov
eba33adadd Extend C-style API with full inference methods 2022-10-04 23:18:15 +03:00
Georgi Gerganov
6b77124e01 Initial C-style interface for whisper.cpp 2022-10-04 23:18:15 +03:00