Missing log trampoline

[thewh1teagle]

When using latest whisper-rs with log-trampoline feature some of the logs are still shown in stderr as normal from whisper.cpp

ggml_opencl: selecting platform: 'AMD Accelerated Parallel Processing'
ggml_opencl: selecting device: 'gfx902'

full log

target\debug>set RUST_LOG=whisper_rs=debug

target\debug>vibe-desktop.exe --model "ggml-medium.bin" --file ..\..\samples\short.wav
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_init_from_file_with_params_no_state: loading model from 'C:\Users\User\AppData\Local\github.com.thewh1teagle.vibe\ggml-medium.bin'
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_init_with_params_no_state: use gpu    = 0
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_init_with_params_no_state: flash attn = 0
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_init_with_params_no_state: gpu_device = 0
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_init_with_params_no_state: dtw        = 0
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: loading model
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: n_vocab       = 51865
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: n_audio_ctx   = 1500
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: n_audio_state = 1024
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: n_audio_head  = 16
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: n_audio_layer = 24
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: n_text_ctx    = 448
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: n_text_state  = 1024
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: n_text_head   = 16
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: n_text_layer  = 24
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: n_mels        = 80
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: ftype         = 1
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: qntvr         = 0
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: type          = 4 (medium)
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: adding 1608 extra tokens
[2024-05-31T21:49:41Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: n_langs       = 99
ggml_opencl: selecting platform: 'AMD Accelerated Parallel Processing'
ggml_opencl: selecting device: 'gfx902'
[2024-05-31T21:49:42Z INFO  whisper_rs::whisper_sys_log] whisper_model_load:      CPU total size =  1533.14 MB
[2024-05-31T21:49:43Z INFO  whisper_rs::whisper_sys_log] whisper_model_load: model size    = 1533.14 MB
[2024-05-31T21:49:43Z INFO  whisper_rs::whisper_sys_log] whisper_init_state: kv self size  =  150.99 MB
[2024-05-31T21:49:43Z INFO  whisper_rs::whisper_sys_log] whisper_init_state: kv cross size =  150.99 MB
[2024-05-31T21:49:43Z INFO  whisper_rs::whisper_sys_log] whisper_init_state: kv pad  size  =    6.29 MB
[2024-05-31T21:49:43Z INFO  whisper_rs::whisper_sys_log] whisper_init_state: compute buffer (conv)   =   28.68 MB
[2024-05-31T21:49:43Z INFO  whisper_rs::whisper_sys_log] whisper_init_state: compute buffer (encode) =  594.22 MB
[2024-05-31T21:49:43Z INFO  whisper_rs::whisper_sys_log] whisper_init_state: compute buffer (cross)  =    7.85 MB
[2024-05-31T21:49:43Z INFO  whisper_rs::whisper_sys_log] whisper_init_state: compute buffer (decode) =  142.09 MB

I would love to fix it myself, but I've never played with trampolines ; ) a pointer can help.

[hlhr202]

I think currently there is no such way to trampoline opencl log. whisper.cpp doesn't allow setting a log callback in their code.
https://github.com/ggerganov/whisper.cpp/blob/af5833e29819810f2d83228228a9a3077e5ccd93/ggml-opencl.cpp#L1103

as a comparison, the ggml_metal backend allows this
https://github.com/ggerganov/whisper.cpp/blob/af5833e29819810f2d83228228a9a3077e5ccd93/ggml-metal.h#L43C15-L43C50