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fix: correct TAEHV encoding for image models #1711

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Merged
leejet merged 1 commit into from
Jun 26, 2026
+9 −4
Merged

fix: correct TAEHV encoding for image models #1711

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13 changes: 9 additions & 4 deletions src/model/vae/tae.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -548,16 +548,18 @@ class TAEHV : public GGMLBlock {
}
auto result = decoder->forward(ctx, z);
if (sd_version_is_wan(version) || sd_version_is_ltxav(version)) {
// (W, H, C, T) -> (W, H, T, C)
// (W, H, T, C) -> (W, H, C, T)
result = ggml_cont(ctx->ggml_ctx, ggml_permute(ctx->ggml_ctx, result, 0, 1, 3, 2));
}
return result;
}

ggml_tensor* encode(GGMLRunnerContext* ctx, ggml_tensor* x) {
auto encoder = std::dynamic_pointer_cast<TinyVideoEncoder>(blocks["encoder"]);
// (W, H, T, C) -> (W, H, C, T)
x = ggml_cont(ctx->ggml_ctx, ggml_permute(ctx->ggml_ctx, x, 0, 1, 3, 2));
if (sd_version_is_wan(version) || sd_version_is_ltxav(version)) {
// (W, H, T, C) -> (W, H, C, T)
x = ggml_cont(ctx->ggml_ctx, ggml_permute(ctx->ggml_ctx, x, 0, 1, 3, 2));
}
int64_t num_frames = x->ne[3];
if (num_frames % encoder->t_downscale) {
// pad to multiple of encoder->t_downscale at the end
Expand All @@ -567,7 +569,10 @@ class TAEHV : public GGMLBlock {
}
}
x = encoder->forward(ctx, x);
x = ggml_cont(ctx->ggml_ctx, ggml_permute(ctx->ggml_ctx, x, 0, 1, 3, 2));
if (sd_version_is_wan(version) || sd_version_is_ltxav(version)) {
// (W, H, C, T) -> (W, H, T, C)
x = ggml_cont(ctx->ggml_ctx, ggml_permute(ctx->ggml_ctx, x, 0, 1, 3, 2));
}
return x;
}
};
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