1ccb8a46a5
bench : fix Windows linkage by moving ggml benches in whisper lib ..
2 years ago
c9aeb33676
stream : fix --keep_context argument to be used correctly ( #354 )
2 years ago
8de452c18b
Improve decoding ( #291 )
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* 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
2 years ago
4ef3398e8f
ggml : remove obsolete zeroing + comment fixes ( #390 )
2 years ago
1512545149
whisper : add loader class to allow loading from buffer and others ( #353 )
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* 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>
2 years ago
d51c5eb906
ggml : define MIN / MAX only if not defined (minor)
2 years ago
d97e6005e9
whisper : add whisper_n_audio_ctx and check for invalid audio_ctx
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closes #344
2 years ago
8e3f129b4d
minor : resolves some of warnings when compiling with clang/clang++ ( #294 )
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* 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>
2 years ago
fba10a4c68
whisper : language auto-detect ( #59 )
2 years ago
bf69b669a0
whisper : add whisper_tokenize()
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Tokenizes a string into a list of vocabulary tokens
2 years ago
78d13257be
Try to improve the token sampling strategy ( #193 )
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* 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
2 years ago
4698dcdb52
whisper : add mechanism for aborting the whisper_full() computation
2 years ago
e266cb0723
whisper.objc : add real-time processing ( #97 )
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Similar to the "stream" app
2 years ago
c207eed431
whisper.objc : fix build warnings
2 years ago
be16dfa038
whisper.wasm : do not block page while processing ( close #86 )
2 years ago
b8ce25dec1
refactoring : more readable code
2 years ago
385236d1d3
stream : "-kc" now enables context keeping from previous segment ( #90 )
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By default, the context keeping is disabled
2 years ago
63ae03b8e0
Prompt previous tokens for streaming ( #163 )
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* 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
2 years ago
fb8d77f760
stream : add "audio_ctx" parameter
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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.
2 years ago
62b5ff875c
stream : add "max_tokens" parameter
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Used to limit the number of tokens in a segment.
Useful to battle with word repetition when using partial encoder context
2 years ago
d351771a4b
stream : add "single_segment" option
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Force the entire audio chunk to be transcribed into a single segment
2 years ago
c058aaf22e
stream : partial encoder experiments
2 years ago
83c742f1a7
whisper : add option to speed up the audio tempo by x2
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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.
2 years ago
c30bffc8a5
ref #22 : add "duration" option
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Can be used to partially process a recording
2 years ago
d5afebd37c
whisper : token-level timestamp refactoring ( #49 , #120 )
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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
2 years ago
57fb46f307
main : add option for word-leve timestamps (very experimental)
2 years ago
eba62e0fa1
close #113 : fix struct whisper_token_data
2 years ago
dec40be58f
parallel : print time of audio boundaries + fix timings
2 years ago
0b2dc3c82c
parallel : working
2 years ago
85d6e1e1e7
main : fix sampling time + add max_context parameter
2 years ago
72e9cdd6bf
parallel : adding tool for parallel transformer inference
2 years ago
34bb3ab0cf
ggml : add system info functions
2 years ago
7affd309d3
whisper : add new-segment callback
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Can be used to process new segments as they are being generated.
Sample usage in main, for printing the resulting segments during the
inference.
2 years ago
31ff0c6a1f
wip : experimental color coding of tokens based on probabilities
2 years ago
7eeef0358a
ref #52 : improve greedy sampling strategy
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Force timestamp token to be sampled if the probability sum over all
timestamp tokens is above the probability of any other token
2 years ago
2d171ced32
close #32 : add comment about thread-safety of the C-style API
2 years ago
e30cf83158
ref #57 , #62 , #63 : remove unions in C-api + remove designated initializers
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We are not ready for designated initializers - many compilers do not
support this C++ feature yet, so removing it's non-trivial usages.
2 years ago
9d5723435f
ref #35 : add <stdbool.h> to whisper.h
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"bool" type is not implicitly defined for some compilers.
2 years ago
9bbca3110f
ref #9 : add API documentation in whisper.h
2 years ago
2f069335ab
Adding sanitizer tests
2 years ago
481cd685d5
ref #10 : option to keep context in "stream" example
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Seems the results become worse when we keep the context, so by default
this is not enabled
2 years ago
7787b878e1
ref #16 , #22 : add "offset" argument
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Allows to start processing the input audio at some offset from the
beginning. Useful for splitting a long job into multiple tasks.
2 years ago
6814cc9b02
Improve result printing
2 years ago
eba33adadd
Extend C-style API with full inference methods
2 years ago
6b77124e01
Initial C-style interface for whisper.cpp
2 years ago
Georgi Gerganov
Syahmi Azhar
Matheus de Sousa
M. Eren Akbiyik