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for non-ETC1S texture video: every frame is an i-frame

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This commit is contained in:
Richard Geldreich
2026-02-28 22:26:53 -05:00
parent 58e3afbaba
commit 790ab66fb6
1 changed files with 12 additions and 1 deletions
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13
encoder/basisu_comp.cpp
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@@ -2510,10 +2510,21 @@ namespace basisu
slice_desc.m_mip_index = mip_indices[slice_index];
slice_desc.m_alpha = is_alpha_slice;
slice_desc.m_iframe = false;
if (m_params.m_tex_type == basist::cBASISTexTypeVideoFrames)
{
slice_desc.m_iframe = (source_file_index == 0);
if (m_params.m_uastc)
{
// If it's not ETC1S, all slices are currently i-frames.
slice_desc.m_iframe = true;
}
else
{
// ETC1S: only the first frame is currently an iframe. (TODO: We can easily fix this so ETC1S has periodic i-frames.)
slice_desc.m_iframe = (source_file_index == 0);
}
}
m_total_blocks += slice_desc.m_num_blocks_x * slice_desc.m_num_blocks_y;