1 files changed, 115 insertions, 0 deletions
diff --git a/llama.cpp/tools/mtmd/models/whisper-enc.cpp b/llama.cpp/tools/mtmd/models/whisper-enc.cpp
new file mode 100644
index 0000000..2f2b127
--- /dev/null
+++ b/llama.cpp/tools/mtmd/models/whisper-enc.cpp
@@ -0,0 +1,115 @@
+#include "models.h"
+
+ggml_cgraph * clip_graph_whisper_enc::build() {
+    const int n_frames = img.nx;
+    const int n_pos    = n_frames / 2;
+    GGML_ASSERT(model.position_embeddings->ne[1] >= n_pos);
+
+    ggml_tensor * inp = build_inp_raw(1);
+
+    // conv1d block
+    {
+        // convolution + gelu
+        ggml_tensor * cur = ggml_conv_1d_ph(ctx0, model.conv1d_1_w, inp, 1, 1);
+        cur = ggml_add(ctx0, cur, model.conv1d_1_b);
+
+        cur = ggml_gelu_erf(ctx0, cur);
+
+        cur = ggml_conv_1d_ph(ctx0, model.conv1d_2_w, cur, 2, 1);
+        cur = ggml_add(ctx0, cur, model.conv1d_2_b);
+
+        cur = ggml_gelu_erf(ctx0, cur);
+        // transpose
+        inp = ggml_cont(ctx0, ggml_transpose(ctx0, cur));
+        cb(inp, "after_conv1d", -1);
+    }
+
+    // sanity check (only check one layer, but it should be the same for all)
+    GGML_ASSERT(model.layers[0].ln_1_w && model.layers[0].ln_1_b);
+    GGML_ASSERT(model.layers[0].ln_2_w && model.layers[0].ln_2_b);
+    GGML_ASSERT(model.layers[0].q_b);
+    GGML_ASSERT(model.layers[0].v_b);
+    GGML_ASSERT(!model.layers[0].k_b); // no bias for k
+
+    ggml_tensor * pos_embd_selected = ggml_view_2d(
+        ctx0, model.position_embeddings,
+        model.position_embeddings->ne[0], n_pos,
+        model.position_embeddings->nb[1], 0
+    );
+    ggml_tensor * cur = build_vit(
+                            inp, n_pos,
+                            NORM_TYPE_NORMAL,
+                            hparams.ffn_op,
+                            pos_embd_selected,
+                            nullptr);
+
+    cb(cur, "after_transformer", -1);
+
+    if (model.audio_has_stack_frames()) {
+        // StackAudioFrames
+        // https://huggingface.co/fixie-ai/ultravox-v0_5-llama-3_2-1b/blob/main/ultravox_model.py
+        cur = build_stack(cur, hparams.proj_stack_factor, n_embd);
+        cb(cur, "after_stacked", -1);
+    }
+
+    if (proj_type == PROJECTOR_TYPE_ULTRAVOX) {
+        // UltravoxProjector
+        // pre-norm
+        cur = ggml_rms_norm(ctx0, cur, 1e-6);
+        cur = ggml_mul(ctx0, cur, model.mm_norm_pre_w);
+
+        // ffn in
+        cur = ggml_mul_mat(ctx0, model.mm_1_w, cur);
+
+        // swiglu
+        // see SwiGLU in ultravox_model.py, the second half passed through is silu, not the first half
+        cur = ggml_swiglu_swapped(ctx0, cur);
+
+        // mid-norm
+        cur = ggml_rms_norm(ctx0, cur, 1e-6);
+        cur = ggml_mul(ctx0, cur, model.mm_norm_mid_w);
+
+        // ffn out
+        cur = ggml_mul_mat(ctx0, model.mm_2_w, cur);
+
+    } else if (proj_type == PROJECTOR_TYPE_QWEN2A) {
+        // projector
+        cur = ggml_mul_mat(ctx0, model.mm_fc_w, cur);
+        cur = ggml_add(ctx0, cur, model.mm_fc_b);
+
+    } else if (proj_type == PROJECTOR_TYPE_VOXTRAL) {
+        // projector
+        cur = build_ffn(cur,
+            model.mm_1_w, model.mm_1_b,
+            nullptr, nullptr,
+            model.mm_2_w, model.mm_2_b,
+            FFN_GELU_ERF,
+            -1);
+
+    } else if (proj_type == PROJECTOR_TYPE_MUSIC_FLAMINGO) {
+        // projector
+        cur = build_ffn(cur,
+            model.mm_1_w, model.mm_1_b,
+            nullptr, nullptr,
+            model.mm_2_w, model.mm_2_b,
+            FFN_GELU_ERF,
+            -1);
+
+    } else if (proj_type == PROJECTOR_TYPE_GLMA) {
+            cur = ggml_norm(ctx0, cur, hparams.eps);
+            cur = ggml_mul(ctx0, cur, model.mm_norm_pre_w);
+            cur = ggml_add(ctx0, cur, model.mm_norm_pre_b);
+            cur = build_stack(cur, hparams.proj_stack_factor, n_embd);
+            cur = build_ffn(cur, model.mm_1_w, model.mm_1_b, nullptr, nullptr, model.mm_2_w, model.mm_2_b, hparams.ffn_op, 0);
+            cur = ggml_concat(ctx0, model.mm_boi, cur, 1);
+            cur = ggml_concat(ctx0, cur, model.mm_eoi, 1);
+    } else {
+        GGML_ABORT("%s: unknown projector type", __func__);
+    }
+
+    cb(cur, "projected", -1);
+
+    ggml_build_forward_expand(gf, cur);
+
+    return gf;
+}