SetAlphaAndImageChunks  282 3rdparty/libwebp/mux/muxedit.c   err = SetAlphaAndImageChunks(bitstream, copy_data, &wpi);
SetAlphaAndImageChunks  331 3rdparty/libwebp/mux/muxedit.c   err = SetAlphaAndImageChunks(bitstream, copy_data, &wpi);