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from __future__ import annotations
import os
import warnings
from ctypes import (
CFUNCTYPE,
c_bool,
c_char_p,
c_int,
c_int64,
c_uint8,
c_uint32,
c_size_t,
c_float,
c_void_p,
POINTER,
_Pointer, # type: ignore
Structure,
byref,
)
import pathlib
from typing import (
Union,
NewType,
Optional,
TYPE_CHECKING,
)
import llama_cpp.llama_cpp as llama_cpp
from llama_cpp._ctypes_extensions import (
load_shared_library,
ctypes_function_for_shared_library,
)
if TYPE_CHECKING:
from llama_cpp._ctypes_extensions import (
CtypesArray,
)
# Specify the base name of the shared library to load
_libmtmd_base_name = "mtmd"
_libmtmd_override_path = os.environ.get("MTMD_CPP_LIB")
_libmtmd_base_path = (
pathlib.Path(os.path.abspath(os.path.dirname(__file__))) / "lib"
if _libmtmd_override_path is None
else pathlib.Path(_libmtmd_override_path)
)
# Load the library
_libmtmd = load_shared_library(_libmtmd_base_name, _libmtmd_base_path)
ctypes_function = ctypes_function_for_shared_library(_libmtmd)
################################################
# mtmd.h types
################################################
# Opaque types
mtmd_context_p = NewType("mtmd_context_p", int)
mtmd_context_p_ctypes = c_void_p
mtmd_bitmap_p = NewType("mtmd_bitmap_p", int)
mtmd_bitmap_p_ctypes = c_void_p
mtmd_helper_video_p = NewType("mtmd_helper_video_p", int)
mtmd_helper_video_p_ctypes = c_void_p
mtmd_image_tokens_p = NewType("mtmd_image_tokens_p", int)
mtmd_image_tokens_p_ctypes = c_void_p
mtmd_input_chunk_p = NewType("mtmd_input_chunk_p", int)
mtmd_input_chunk_p_ctypes = c_void_p
mtmd_input_chunks_p = NewType("mtmd_input_chunks_p", int)
mtmd_input_chunks_p_ctypes = c_void_p
mtmd_batch_p = NewType("mtmd_batch_p", int)
mtmd_batch_p_ctypes = c_void_p
# Enums
MTMD_INPUT_CHUNK_TYPE_TEXT = 0
MTMD_INPUT_CHUNK_TYPE_IMAGE = 1
MTMD_INPUT_CHUNK_TYPE_AUDIO = 2
# Structures
class mtmd_context_params(Structure):
"""Context parameters for MTMD initialization.
`image_marker` is deprecated upstream and kept for compatibility; use
`media_marker` for multimodal prompt placeholders.
"""
if TYPE_CHECKING:
use_gpu: bool
print_timings: bool
n_threads: int
image_marker: Optional[bytes]
media_marker: Optional[bytes]
flash_attn_type: int
warmup: bool
image_min_tokens: int
image_max_tokens: int
cb_eval: llama_cpp.ggml_backend_sched_eval_callback
cb_eval_user_data: c_void_p
batch_max_tokens: int
_fields_ = [
("use_gpu", c_bool),
("print_timings", c_bool),
("n_threads", c_int),
("image_marker", c_char_p),
("media_marker", c_char_p),
("flash_attn_type", c_int),
("warmup", c_bool),
("image_min_tokens", c_int),
("image_max_tokens", c_int),
("cb_eval", llama_cpp.ggml_backend_sched_eval_callback),
("cb_eval_user_data", c_void_p),
("batch_max_tokens", c_int),
]
class mtmd_input_text(Structure):
"""Text input passed to `mtmd_tokenize`."""
_fields_ = [
("text", c_char_p),
("add_special", c_bool),
("parse_special", c_bool),
]
class mtmd_decoder_pos(Structure):
"""Decoder attention position for M-RoPE models."""
_fields_ = [
("t", c_uint32),
("x", c_uint32),
("y", c_uint32),
("z", c_uint32),
]
# struct mtmd_caps {
# bool inp_vision;
# bool inp_audio;
# };
class mtmd_caps(Structure):
"""Capabilities exposed by an mmproj file."""
if TYPE_CHECKING:
inp_vision: bool
inp_audio: bool
_fields_ = [
("inp_vision", c_bool),
("inp_audio", c_bool),
]
mtmd_bitmap_lazy_callback = CFUNCTYPE(
c_int,
c_size_t,
c_void_p,
POINTER(mtmd_bitmap_p_ctypes),
POINTER(c_char_p),
)
class mtmd_helper_bitmap_wrapper(Structure):
"""Bitmap wrapper returned by MTMD helper media loaders."""
if TYPE_CHECKING:
bitmap: Optional[mtmd_bitmap_p]
video_ctx: Optional[mtmd_helper_video_p]
_fields_ = [
("bitmap", mtmd_bitmap_p_ctypes),
("video_ctx", mtmd_helper_video_p_ctypes),
]
class mtmd_helper_video_info(Structure):
"""Metadata for a decoded video stream."""
if TYPE_CHECKING:
width: int
height: int
fps: float
n_frames: int
_fields_ = [
("width", c_uint32),
("height", c_uint32),
("fps", c_float),
("n_frames", c_int),
]
class mtmd_helper_video_init_params(Structure):
"""Parameters for initializing an MTMD helper video stream."""
if TYPE_CHECKING:
fps_target: float
ffmpeg_bin_dir: Optional[bytes]
timestamp_interval_ms: int
_fields_ = [
("fps_target", c_float),
("ffmpeg_bin_dir", c_char_p),
("timestamp_interval_ms", c_int64),
]
################################################
# mtmd.h functions
################################################
# MTMD_API const char * mtmd_default_marker(void);
@ctypes_function("mtmd_default_marker", [], c_char_p)
def mtmd_default_marker() -> bytes:
"""Return the default media marker."""
...
# MTMD_API struct mtmd_context_params mtmd_context_params_default(void);
@ctypes_function("mtmd_context_params_default", [], mtmd_context_params)
def mtmd_context_params_default() -> mtmd_context_params:
"""Return the default MTMD context parameters."""
...
# MTMD_API mtmd_context * mtmd_init_from_file(const char * mmproj_fname,
# const struct llama_model * text_model,
# const struct mtmd_context_params ctx_params);
@ctypes_function(
"mtmd_init_from_file",
[c_char_p, llama_cpp.llama_model_p_ctypes, mtmd_context_params],
mtmd_context_p_ctypes,
)
def mtmd_init_from_file(
mmproj_fname: bytes,
text_model: llama_cpp.llama_model_p,
ctx_params: mtmd_context_params,
/,
) -> Optional[mtmd_context_p]:
"""Initialize the MTMD context from a projector file. Returns None on failure."""
...
# MTMD_API void mtmd_free(mtmd_context * ctx);
@ctypes_function("mtmd_free", [mtmd_context_p_ctypes], None)
def mtmd_free(ctx: mtmd_context_p, /): ...
# MTMD_API bool mtmd_decode_use_non_causal(const mtmd_context * ctx, const mtmd_input_chunk * chunk);
@ctypes_function(
"mtmd_decode_use_non_causal",
[mtmd_context_p_ctypes, mtmd_input_chunk_p_ctypes],
c_bool,
)
def mtmd_decode_use_non_causal(
ctx: mtmd_context_p, chunk: Optional[mtmd_input_chunk_p], /
) -> bool:
"""Check whether MTMD decoding uses non-causal attention."""
...
# MTMD_API bool mtmd_decode_use_mrope(const mtmd_context * ctx);
@ctypes_function("mtmd_decode_use_mrope", [mtmd_context_p_ctypes], c_bool)
def mtmd_decode_use_mrope(ctx: mtmd_context_p, /) -> bool:
"""Check whether MTMD decoding uses mRoPE."""
...
# MTMD_API bool mtmd_support_vision(const mtmd_context * ctx);
@ctypes_function("mtmd_support_vision", [mtmd_context_p_ctypes], c_bool)
def mtmd_support_vision(ctx: mtmd_context_p, /) -> bool:
"""Check whether the current model supports vision input."""
...
# MTMD_API bool mtmd_support_audio(const mtmd_context * ctx);
@ctypes_function("mtmd_support_audio", [mtmd_context_p_ctypes], c_bool)
def mtmd_support_audio(ctx: mtmd_context_p, /) -> bool:
"""Check whether MTMD supports audio."""
...
# MTMD_API int mtmd_get_audio_sample_rate(const mtmd_context * ctx);
@ctypes_function("mtmd_get_audio_sample_rate", [mtmd_context_p_ctypes], c_int)
def mtmd_get_audio_sample_rate(ctx: mtmd_context_p, /) -> int:
"""Get the audio sample rate in Hz. Returns -1 if audio is not supported."""
...
# MTMD_API const char * mtmd_get_marker(const mtmd_context * ctx);
@ctypes_function("mtmd_get_marker", [mtmd_context_p_ctypes], c_char_p)
def mtmd_get_marker(ctx: mtmd_context_p, /) -> Optional[bytes]:
"""Get the current media marker string."""
...
# Deprecated compatibility wrapper for the renamed mtmd_get_audio_sample_rate().
def mtmd_get_audio_bitrate(ctx: mtmd_context_p, /) -> int:
warnings.warn(
"mtmd_get_audio_bitrate is deprecated; use mtmd_get_audio_sample_rate instead",
DeprecationWarning,
stacklevel=2,
)
return mtmd_get_audio_sample_rate(ctx)
# MTMD_API mtmd_bitmap * mtmd_bitmap_init(uint32_t nx, uint32_t ny, const unsigned char * data);
@ctypes_function(
"mtmd_bitmap_init", [c_uint32, c_uint32, POINTER(c_uint8)], mtmd_bitmap_p_ctypes
)
def mtmd_bitmap_init(
nx: Union[c_uint32, int],
ny: Union[c_uint32, int],
data: CtypesArray[c_uint8],
/,
) -> Optional[mtmd_bitmap_p]: ...
# MTMD_API mtmd_bitmap * mtmd_bitmap_init_from_audio(size_t n_samples, const float * data);
@ctypes_function(
"mtmd_bitmap_init_from_audio",
[c_size_t, POINTER(c_float)],
mtmd_bitmap_p_ctypes,
)
def mtmd_bitmap_init_from_audio(
n_samples: Union[c_size_t, int],
data: CtypesArray[c_float],
/,
) -> Optional[mtmd_bitmap_p]:
"""Initialize an MTMD bitmap from audio samples."""
...
# MTMD_API void mtmd_bitmap_free(mtmd_bitmap * bitmap);
@ctypes_function("mtmd_bitmap_free", [mtmd_bitmap_p_ctypes], None)
def mtmd_bitmap_free(bitmap: mtmd_bitmap_p, /): ...
# MTMD_API uint32_t mtmd_bitmap_get_nx(const mtmd_bitmap * bitmap);
@ctypes_function("mtmd_bitmap_get_nx", [mtmd_bitmap_p_ctypes], c_uint32)
def mtmd_bitmap_get_nx(bitmap: mtmd_bitmap_p, /) -> int:
"""Get the bitmap width in pixels."""
...
# MTMD_API uint32_t mtmd_bitmap_get_ny(const mtmd_bitmap * bitmap);
@ctypes_function("mtmd_bitmap_get_ny", [mtmd_bitmap_p_ctypes], c_uint32)
def mtmd_bitmap_get_ny(bitmap: mtmd_bitmap_p, /) -> int:
"""Get the bitmap height in pixels."""
...
# MTMD_API const unsigned char * mtmd_bitmap_get_data(const mtmd_bitmap * bitmap);
@ctypes_function("mtmd_bitmap_get_data", [mtmd_bitmap_p_ctypes], POINTER(c_uint8))
def mtmd_bitmap_get_data(bitmap: mtmd_bitmap_p, /) -> Optional[CtypesArray[c_uint8]]:
"""Get the raw bitmap data buffer."""
...
# MTMD_API size_t mtmd_bitmap_get_n_bytes(const mtmd_bitmap * bitmap);
@ctypes_function("mtmd_bitmap_get_n_bytes", [mtmd_bitmap_p_ctypes], c_size_t)
def mtmd_bitmap_get_n_bytes(bitmap: mtmd_bitmap_p, /) -> int:
"""Get the bitmap data size in bytes."""
...
# MTMD_API bool mtmd_bitmap_is_audio(const mtmd_bitmap * bitmap);
@ctypes_function("mtmd_bitmap_is_audio", [mtmd_bitmap_p_ctypes], c_bool)
def mtmd_bitmap_is_audio(bitmap: mtmd_bitmap_p, /) -> bool:
"""Check whether the bitmap contains audio data."""
...
# MTMD_API const char * mtmd_bitmap_get_id(const mtmd_bitmap * bitmap);
@ctypes_function("mtmd_bitmap_get_id", [mtmd_bitmap_p_ctypes], c_char_p)
def mtmd_bitmap_get_id(bitmap: mtmd_bitmap_p, /) -> Optional[bytes]:
"""Get the optional bitmap identifier."""
...
# MTMD_API void mtmd_bitmap_set_id(mtmd_bitmap * bitmap, const char * id);
@ctypes_function("mtmd_bitmap_set_id", [mtmd_bitmap_p_ctypes, c_char_p], None)
def mtmd_bitmap_set_id(bitmap: mtmd_bitmap_p, id: Optional[bytes], /):
"""Set the optional bitmap identifier."""
...
# MTMD_API mtmd_bitmap * mtmd_bitmap_init_lazy(mtmd_context * ctx,
# const char * id,
# void * user_data,
# mtmd_bitmap_lazy_callback callback);
@ctypes_function(
"mtmd_bitmap_init_lazy",
[mtmd_context_p_ctypes, c_char_p, c_void_p, mtmd_bitmap_lazy_callback],
mtmd_bitmap_p_ctypes,
)
def mtmd_bitmap_init_lazy(
ctx: mtmd_context_p,
id: Optional[bytes],
user_data: c_void_p,
callback: mtmd_bitmap_lazy_callback,
/,
) -> Optional[mtmd_bitmap_p]:
"""Initialize a lazy MTMD bitmap."""
...
# MTMD_API mtmd_input_chunks * mtmd_input_chunks_init(void);
@ctypes_function("mtmd_input_chunks_init", [], mtmd_input_chunks_p_ctypes)
def mtmd_input_chunks_init() -> Optional[mtmd_input_chunks_p]: ...
# MTMD_API void mtmd_input_chunks_free(mtmd_input_chunks * chunks);
@ctypes_function("mtmd_input_chunks_free", [mtmd_input_chunks_p_ctypes], None)
def mtmd_input_chunks_free(chunks: mtmd_input_chunks_p, /): ...
# MTMD_API size_t mtmd_input_chunks_size(const mtmd_input_chunks * chunks);
@ctypes_function("mtmd_input_chunks_size", [mtmd_input_chunks_p_ctypes], c_size_t)
def mtmd_input_chunks_size(chunks: mtmd_input_chunks_p, /) -> int: ...
# MTMD_API const mtmd_input_chunk * mtmd_input_chunks_get(const mtmd_input_chunks * chunks, size_t idx);
@ctypes_function(
"mtmd_input_chunks_get",
[mtmd_input_chunks_p_ctypes, c_size_t],
mtmd_input_chunk_p_ctypes,
)
def mtmd_input_chunks_get(
chunks: mtmd_input_chunks_p, idx: Union[c_size_t, int], /
) -> Optional[mtmd_input_chunk_p]: ...
# MTMD_API int32_t mtmd_tokenize(mtmd_context * ctx,
# mtmd_input_chunks * output,
# const mtmd_input_text * text,
# const mtmd_bitmap ** bitmaps,
# size_t n_bitmaps);
@ctypes_function(
"mtmd_tokenize",
[
mtmd_context_p_ctypes,
mtmd_input_chunks_p_ctypes,
POINTER(mtmd_input_text),
POINTER(mtmd_bitmap_p_ctypes),
c_size_t,
],
c_int,
)
def mtmd_tokenize(
ctx: mtmd_context_p,
output: mtmd_input_chunks_p,
text: "_Pointer[mtmd_input_text]",
bitmaps: CtypesArray[mtmd_bitmap_p_ctypes],
n_bitmaps: Union[c_size_t, int],
/,
) -> int: ...
# MTMD_API size_t mtmd_input_chunk_get_n_tokens(const mtmd_input_chunk * chunk);
@ctypes_function("mtmd_input_chunk_get_n_tokens", [mtmd_input_chunk_p_ctypes], c_size_t)
def mtmd_input_chunk_get_n_tokens(chunk: mtmd_input_chunk_p, /) -> int: ...
# MTMD_API enum mtmd_input_chunk_type mtmd_input_chunk_get_type(const mtmd_input_chunk * chunk);
@ctypes_function("mtmd_input_chunk_get_type", [mtmd_input_chunk_p_ctypes], c_int)
def mtmd_input_chunk_get_type(chunk: mtmd_input_chunk_p, /) -> int: ...
# MTMD_API const llama_token * mtmd_input_chunk_get_tokens_text(const mtmd_input_chunk * chunk, size_t * n_tokens_output);
@ctypes_function(
"mtmd_input_chunk_get_tokens_text",
[mtmd_input_chunk_p_ctypes, POINTER(c_size_t)],
POINTER(llama_cpp.llama_token),
)
def mtmd_input_chunk_get_tokens_text(
chunk: mtmd_input_chunk_p, n_tokens_output: "_Pointer[c_size_t]", /
) -> Optional["_Pointer[llama_cpp.llama_token]"]: ...
# MTMD_API const mtmd_image_tokens * mtmd_input_chunk_get_tokens_image(const mtmd_input_chunk * chunk);
@ctypes_function(
"mtmd_input_chunk_get_tokens_image",
[mtmd_input_chunk_p_ctypes],
mtmd_image_tokens_p_ctypes,
)
def mtmd_input_chunk_get_tokens_image(
chunk: mtmd_input_chunk_p, /
) -> Optional[mtmd_image_tokens_p]: ...
# MTMD_API const char * mtmd_input_chunk_get_id(const mtmd_input_chunk * chunk);
@ctypes_function("mtmd_input_chunk_get_id", [mtmd_input_chunk_p_ctypes], c_char_p)
def mtmd_input_chunk_get_id(chunk: mtmd_input_chunk_p, /) -> Optional[bytes]:
"""Get the optional chunk identifier."""
...
# MTMD_API llama_pos mtmd_input_chunk_get_n_pos(const mtmd_input_chunk * chunk);
@ctypes_function(
"mtmd_input_chunk_get_n_pos",
[mtmd_input_chunk_p_ctypes],
llama_cpp.llama_pos,
)
def mtmd_input_chunk_get_n_pos(chunk: mtmd_input_chunk_p, /) -> int:
"""Get the number of positions consumed by the chunk."""
...
# MTMD_API mtmd_input_chunk * mtmd_input_chunk_copy(const mtmd_input_chunk * chunk);
@ctypes_function(
"mtmd_input_chunk_copy", [mtmd_input_chunk_p_ctypes], mtmd_input_chunk_p_ctypes
)
def mtmd_input_chunk_copy(chunk: mtmd_input_chunk_p, /) -> Optional[mtmd_input_chunk_p]:
"""Copy an input chunk and transfer ownership to the caller."""
...
# MTMD_API void mtmd_input_chunk_free(mtmd_input_chunk * chunk);
@ctypes_function("mtmd_input_chunk_free", [mtmd_input_chunk_p_ctypes], None)
def mtmd_input_chunk_free(chunk: mtmd_input_chunk_p, /):
"""Free an owned input chunk."""
...
# MTMD_API size_t mtmd_image_tokens_get_n_tokens(const mtmd_image_tokens * image_tokens);
@ctypes_function(
"mtmd_image_tokens_get_n_tokens", [mtmd_image_tokens_p_ctypes], c_size_t
)
def mtmd_image_tokens_get_n_tokens(image_tokens: mtmd_image_tokens_p, /) -> int:
"""Get the number of image tokens."""
...
# DEPRECATED(MTMD_API size_t mtmd_image_tokens_get_nx(const mtmd_image_tokens * image_tokens),
# "use mtmd_image_tokens_get_decoder_pos() instead");
@ctypes_function("mtmd_image_tokens_get_nx", [mtmd_image_tokens_p_ctypes], c_size_t)
def mtmd_image_tokens_get_nx(image_tokens: mtmd_image_tokens_p, /) -> int:
"""Get the image token grid width."""
...
# DEPRECATED(MTMD_API size_t mtmd_image_tokens_get_ny(const mtmd_image_tokens * image_tokens),
# "use mtmd_image_tokens_get_decoder_pos() instead");
@ctypes_function("mtmd_image_tokens_get_ny", [mtmd_image_tokens_p_ctypes], c_size_t)
def mtmd_image_tokens_get_ny(image_tokens: mtmd_image_tokens_p, /) -> int:
"""Get the image token grid height."""
...
# MTMD_API const char * mtmd_image_tokens_get_id(const mtmd_image_tokens * image_tokens);
@ctypes_function("mtmd_image_tokens_get_id", [mtmd_image_tokens_p_ctypes], c_char_p)
def mtmd_image_tokens_get_id(image_tokens: mtmd_image_tokens_p, /) -> Optional[bytes]:
"""Get the optional image token identifier."""
...
# MTMD_API llama_pos mtmd_image_tokens_get_n_pos(const mtmd_image_tokens * image_tokens);
@ctypes_function(
"mtmd_image_tokens_get_n_pos",
[mtmd_image_tokens_p_ctypes],
llama_cpp.llama_pos,
)
def mtmd_image_tokens_get_n_pos(image_tokens: mtmd_image_tokens_p, /) -> int:
"""Get the number of positions consumed by the image tokens."""
...
# MTMD_API struct mtmd_decoder_pos mtmd_image_tokens_get_decoder_pos(
# const mtmd_image_tokens * image_tokens, llama_pos pos_0, size_t i);
@ctypes_function(
"mtmd_image_tokens_get_decoder_pos",
[mtmd_image_tokens_p_ctypes, llama_cpp.llama_pos, c_size_t],
mtmd_decoder_pos,
)
def mtmd_image_tokens_get_decoder_pos(
image_tokens: mtmd_image_tokens_p,
pos_0: llama_cpp.llama_pos,
i: Union[c_size_t, int],
/,
) -> mtmd_decoder_pos:
"""Get decoder attention position for an image embedding token."""
...
# MTMD_API int32_t mtmd_encode(mtmd_context * ctx, const mtmd_image_tokens * image_tokens);
@ctypes_function(
"mtmd_encode",
[mtmd_context_p_ctypes, mtmd_image_tokens_p_ctypes],
c_int,
)
def mtmd_encode(ctx: mtmd_context_p, image_tokens: mtmd_image_tokens_p, /) -> int:
"""Run a deprecated MTMD encode pass for image tokens."""
...
# MTMD_API int32_t mtmd_encode_chunk(mtmd_context * ctx, const mtmd_input_chunk * chunk);
@ctypes_function(
"mtmd_encode_chunk",
[mtmd_context_p_ctypes, mtmd_input_chunk_p_ctypes],
c_int,
)
def mtmd_encode_chunk(ctx: mtmd_context_p, chunk: mtmd_input_chunk_p, /) -> int:
"""Run an MTMD encode pass for a single chunk."""
...
# MTMD_API float * mtmd_get_output_embd(mtmd_context * ctx);
@ctypes_function("mtmd_get_output_embd", [mtmd_context_p_ctypes], POINTER(c_float))
def mtmd_get_output_embd(ctx: mtmd_context_p, /) -> Optional[CtypesArray[c_float]]:
"""Get output embeddings from the last encode pass."""
...
# MTMD_API mtmd_batch * mtmd_batch_init(mtmd_context * ctx);
@ctypes_function("mtmd_batch_init", [mtmd_context_p_ctypes], mtmd_batch_p_ctypes)
def mtmd_batch_init(ctx: mtmd_context_p, /) -> Optional[mtmd_batch_p]:
"""Initialize an MTMD media chunk batch for a context."""
...
# MTMD_API void mtmd_batch_free(mtmd_batch * batch);
@ctypes_function("mtmd_batch_free", [mtmd_batch_p_ctypes], None)
def mtmd_batch_free(batch: mtmd_batch_p, /): ...
# MTMD_API int32_t mtmd_batch_add_chunk(mtmd_batch * batch, const mtmd_input_chunk * chunk);
@ctypes_function(
"mtmd_batch_add_chunk",
[mtmd_batch_p_ctypes, mtmd_input_chunk_p_ctypes],
c_int,
)
def mtmd_batch_add_chunk(
batch: mtmd_batch_p,
chunk: mtmd_input_chunk_p,
/,
) -> int:
"""Add a media chunk to an MTMD batch."""
...
# MTMD_API int32_t mtmd_batch_encode(mtmd_batch * batch);
@ctypes_function("mtmd_batch_encode", [mtmd_batch_p_ctypes], c_int)
def mtmd_batch_encode(batch: mtmd_batch_p, /) -> int:
"""Run an MTMD encode pass for all chunks in a batch."""
...
# MTMD_API float * mtmd_batch_get_output_embd(mtmd_batch * batch, const mtmd_input_chunk * chunk);
@ctypes_function(
"mtmd_batch_get_output_embd",
[mtmd_batch_p_ctypes, mtmd_input_chunk_p_ctypes],
POINTER(c_float),
)
def mtmd_batch_get_output_embd(
batch: mtmd_batch_p,
chunk: mtmd_input_chunk_p,
/,
) -> Optional[CtypesArray[c_float]]:
"""Get output embeddings for a chunk from the last batch encode pass."""
...
# MTMD_API struct mtmd_caps mtmd_get_cap_from_file(const char * mmproj_fname);
@ctypes_function("mtmd_get_cap_from_file", [c_char_p], mtmd_caps)
def mtmd_get_cap_from_file(mmproj_fname: bytes, /) -> mtmd_caps:
"""Get mmproj capabilities without initializing a full MTMD context."""
...
# MTMD_API mtmd_input_chunks * mtmd_test_create_input_chunks(void);
@ctypes_function("mtmd_test_create_input_chunks", [], mtmd_input_chunks_p_ctypes)
def mtmd_test_create_input_chunks() -> Optional[mtmd_input_chunks_p]:
"""Create MTMD test chunks for the C API tests."""
...
################################################
# mtmd-helper.h functions
################################################
# MTMD_API bool mtmd_helper_support_video(mtmd_context * ctx);
@ctypes_function(
"mtmd_helper_support_video",
[mtmd_context_p_ctypes],
c_bool,
)
def mtmd_helper_support_video(ctx: mtmd_context_p, /) -> bool:
"""Check whether MTMD helper video support is available."""
...
# MTMD_API struct mtmd_helper_bitmap_wrapper mtmd_helper_bitmap_init_from_file(mtmd_context * ctx, const char * fname, bool placeholder);
@ctypes_function(
"mtmd_helper_bitmap_init_from_file",
[mtmd_context_p_ctypes, c_char_p, c_bool],
mtmd_helper_bitmap_wrapper,
)
def mtmd_helper_bitmap_init_from_file_wrapper(
ctx: mtmd_context_p, fname: bytes, placeholder: Union[c_bool, bool], /
) -> mtmd_helper_bitmap_wrapper:
"""Initialize an MTMD bitmap wrapper from a file."""
...
def mtmd_helper_bitmap_init_from_file(
ctx: mtmd_context_p, fname: bytes, placeholder: Union[c_bool, bool], /
) -> Optional[mtmd_bitmap_p]:
"""Initialize an MTMD bitmap from a file."""
return mtmd_helper_bitmap_init_from_file_wrapper(ctx, fname, placeholder).bitmap
# MTMD_API struct mtmd_helper_bitmap_wrapper mtmd_helper_bitmap_init_from_buf(mtmd_context * ctx, const unsigned char * buf, size_t len, bool placeholder);
@ctypes_function(
"mtmd_helper_bitmap_init_from_buf",
[mtmd_context_p_ctypes, POINTER(c_uint8), c_size_t, c_bool],
mtmd_helper_bitmap_wrapper,
)
def mtmd_helper_bitmap_init_from_buf_wrapper(
ctx: mtmd_context_p,
buf: CtypesArray[c_uint8],
length: Union[c_size_t, int],
placeholder: Union[c_bool, bool],
/,
) -> mtmd_helper_bitmap_wrapper: ...
def mtmd_helper_bitmap_init_from_buf(
ctx: mtmd_context_p,
buf: CtypesArray[c_uint8],
length: Union[c_size_t, int],
placeholder: Union[c_bool, bool],
/,
) -> Optional[mtmd_bitmap_p]:
"""Initialize an MTMD bitmap from a buffer."""
return mtmd_helper_bitmap_init_from_buf_wrapper(
ctx, buf, length, placeholder
).bitmap
# MTMD_API size_t mtmd_helper_get_n_tokens(const mtmd_input_chunks * chunks);
@ctypes_function("mtmd_helper_get_n_tokens", [mtmd_input_chunks_p_ctypes], c_size_t)
def mtmd_helper_get_n_tokens(chunks: mtmd_input_chunks_p, /) -> int: ...
# MTMD_API llama_pos mtmd_helper_get_n_pos(const mtmd_input_chunks * chunks);
@ctypes_function(
"mtmd_helper_get_n_pos",
[mtmd_input_chunks_p_ctypes],
llama_cpp.llama_pos,
)
def mtmd_helper_get_n_pos(chunks: mtmd_input_chunks_p, /) -> int:
"""Count the total positions consumed by the chunks."""
...
# MTMD_API void mtmd_helper_image_get_decoder_pos(
# const mtmd_image_tokens * image, llama_pos pos_0, struct mtmd_decoder_pos * out_pos);
@ctypes_function(
"mtmd_helper_image_get_decoder_pos",
[mtmd_image_tokens_p_ctypes, llama_cpp.llama_pos, POINTER(mtmd_decoder_pos)],
None,
)
def mtmd_helper_image_get_decoder_pos(
image: mtmd_image_tokens_p,
pos_0: llama_cpp.llama_pos,
out_pos: "_Pointer[mtmd_decoder_pos]",
/,
):
"""Fill decoder attention positions for all image embedding tokens."""
...
# MTMD_API int32_t mtmd_helper_eval_chunks(mtmd_context * ctx,
# struct llama_context * lctx,
# const mtmd_input_chunks * chunks,
# llama_pos n_past,
# llama_seq_id seq_id,
# int32_t n_batch,
# bool logits_last,
# llama_pos * new_n_past);
@ctypes_function(
"mtmd_helper_eval_chunks",
[
mtmd_context_p_ctypes,
llama_cpp.llama_context_p_ctypes,
mtmd_input_chunks_p_ctypes,
llama_cpp.llama_pos,
llama_cpp.llama_seq_id,
c_int,
c_bool,
POINTER(llama_cpp.llama_pos),
],
c_int,
)
def mtmd_helper_eval_chunks(
ctx: mtmd_context_p,
lctx: llama_cpp.llama_context_p,
chunks: mtmd_input_chunks_p,
n_past: llama_cpp.llama_pos,
seq_id: llama_cpp.llama_seq_id,
n_batch: Union[c_int, int],
logits_last: Union[c_bool, bool],
new_n_past: "_Pointer[llama_cpp.llama_pos]",
/,
) -> int: ...
# MTMD_API int32_t mtmd_helper_eval_chunk_single(mtmd_context * ctx,
# struct llama_context * lctx,
# const mtmd_input_chunk * chunk,
# llama_pos n_past,
# llama_seq_id seq_id,
# int32_t n_batch,
# bool logits_last,
# llama_pos * new_n_past);
@ctypes_function(
"mtmd_helper_eval_chunk_single",
[
mtmd_context_p_ctypes,
llama_cpp.llama_context_p_ctypes,
mtmd_input_chunk_p_ctypes,
llama_cpp.llama_pos,
llama_cpp.llama_seq_id,
c_int,
c_bool,
POINTER(llama_cpp.llama_pos),
],
c_int,
)
def mtmd_helper_eval_chunk_single(
ctx: mtmd_context_p,
lctx: llama_cpp.llama_context_p,
chunk: mtmd_input_chunk_p,
n_past: llama_cpp.llama_pos,
seq_id: llama_cpp.llama_seq_id,
n_batch: Union[c_int, int],
logits_last: Union[c_bool, bool],
new_n_past: "_Pointer[llama_cpp.llama_pos]",
/,
) -> int: ...
# MTMD_API int32_t mtmd_helper_decode_image_chunk(mtmd_context * ctx,
# struct llama_context * lctx,
# const mtmd_input_chunk * chunk,
# float * encoded_embd,
# llama_pos n_past,
# llama_seq_id seq_id,
# int32_t n_batch,
# llama_pos * new_n_past);
@ctypes_function(
"mtmd_helper_decode_image_chunk",
[
mtmd_context_p_ctypes,
llama_cpp.llama_context_p_ctypes,
mtmd_input_chunk_p_ctypes,
POINTER(c_float),
llama_cpp.llama_pos,
llama_cpp.llama_seq_id,
c_int,
POINTER(llama_cpp.llama_pos),
],
c_int,
)
def mtmd_helper_decode_image_chunk(
ctx: mtmd_context_p,
lctx: llama_cpp.llama_context_p,
chunk: mtmd_input_chunk_p,
encoded_embd: CtypesArray[c_float],
n_past: llama_cpp.llama_pos,
seq_id: llama_cpp.llama_seq_id,
n_batch: Union[c_int, int],
new_n_past: "_Pointer[llama_cpp.llama_pos]",
/,
) -> int:
"""Decode a pre-encoded image chunk."""
...
# MTMD_API struct mtmd_helper_video_init_params mtmd_helper_video_init_params_default(void);
@ctypes_function(
"mtmd_helper_video_init_params_default", [], mtmd_helper_video_init_params
)
def mtmd_helper_video_init_params_default() -> mtmd_helper_video_init_params:
"""Return the default MTMD helper video initialization parameters."""
...
# MTMD_API mtmd_helper_video * mtmd_helper_video_init(
# struct mtmd_context * mctx,
# const char * path,
# struct mtmd_helper_video_init_params params);
@ctypes_function(
"mtmd_helper_video_init",
[mtmd_context_p_ctypes, c_char_p, mtmd_helper_video_init_params],
mtmd_helper_video_p_ctypes,
)
def mtmd_helper_video_init(
ctx: mtmd_context_p,
path: bytes,
params: mtmd_helper_video_init_params,
/,
) -> Optional[mtmd_helper_video_p]:
"""Initialize an MTMD helper video stream from a file path."""
...
# MTMD_API mtmd_helper_video * mtmd_helper_video_init_from_buf(
# struct mtmd_context * mctx,
# const unsigned char * buf, size_t len,
# struct mtmd_helper_video_init_params params);
@ctypes_function(
"mtmd_helper_video_init_from_buf",
[mtmd_context_p_ctypes, POINTER(c_uint8), c_size_t, mtmd_helper_video_init_params],
mtmd_helper_video_p_ctypes,
)
def mtmd_helper_video_init_from_buf(
ctx: mtmd_context_p,
buf: CtypesArray[c_uint8],
length: Union[c_size_t, int],
params: mtmd_helper_video_init_params,
/,
) -> Optional[mtmd_helper_video_p]:
"""Initialize an MTMD helper video stream from a buffer."""
...
# MTMD_API void mtmd_helper_video_free(mtmd_helper_video * ctx);
@ctypes_function("mtmd_helper_video_free", [mtmd_helper_video_p_ctypes], None)
def mtmd_helper_video_free(ctx: mtmd_helper_video_p, /):
"""Free an MTMD helper video stream."""
...
# MTMD_API struct mtmd_helper_video_info mtmd_helper_video_get_info(const mtmd_helper_video * ctx);
@ctypes_function(
"mtmd_helper_video_get_info",
[mtmd_helper_video_p_ctypes],
mtmd_helper_video_info,
)
def mtmd_helper_video_get_info(ctx: mtmd_helper_video_p, /) -> mtmd_helper_video_info:
"""Get metadata for an MTMD helper video stream."""
...
# MTMD_API int32_t mtmd_helper_video_read_next(mtmd_helper_video * ctx,
# mtmd_bitmap ** out_bitmap,
# char ** out_text);
@ctypes_function(
"mtmd_helper_video_read_next",
[
mtmd_helper_video_p_ctypes,
POINTER(mtmd_bitmap_p_ctypes),
POINTER(c_char_p),
],
c_int,
)
def mtmd_helper_video_read_next(
ctx: mtmd_helper_video_p,
out_bitmap: "_Pointer[mtmd_bitmap_p_ctypes]",
out_text: "_Pointer[c_char_p]",
/,
) -> int:
"""Read the next bitmap or text chunk from an MTMD helper video stream."""
...
# MTMD_API void mtmd_log_set(ggml_log_callback log_callback, void * user_data);
@ctypes_function(
"mtmd_log_set",
[llama_cpp.llama_log_callback, c_void_p],
None,
)
def mtmd_log_set(log_callback, user_data: c_void_p, /):
"""Set the MTMD logging callback."""
...
# MTMD_API void mtmd_helper_log_set(ggml_log_callback log_callback, void * user_data);
@ctypes_function(
"mtmd_helper_log_set",
[llama_cpp.llama_log_callback, c_void_p],
None,
)
def mtmd_helper_log_set(log_callback, user_data: c_void_p, /):
"""Set the MTMD helper logging callback."""
...
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